JPH0360588A - Television camera with printer - Google Patents

Abstract

PURPOSE:To enlarge a printed still picture while reducing width of a printer by storing a video signal into a memory circuit by one field in which scanning lines are divided into picture elements of 408 dots or the like, reading the same numbered picture element of each scanning line from the memory circuit at printout and printing the element by the printer. CONSTITUTION:An address designation circuit 50 adds addresses from 135 to 32, 639 by 136 each and 240 sets of density information from 408-th dot of a 1st scanning line to a 408th dot of a 240th scanning line are read from a RAM 48 and the density information of 240 picture elements are converted into the density information of 320 picture elements by an interpolation circuit 71, a selection circuit 72 or the like. A comparator circuit 74 compares the density information of 320 picture elements with 1st gradation density information of the lightest gradation outputted from a gradation counter circuit 78, the result is fed to a printer section 85, in which whether or not each dot of 320 picture elements is to be printed out by the 1st gradation density is discriminated, the result is stored in a line buffer 87 of the printer section 85 and when the density information of 320 picture elements is stored, the printer section 85 prints out the 1st line in the 1st gradation at first.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a television camera with a printer that can print a portion of a television screen as a still image using a dot printer.

[Prior Art 1] A television camera with a printer is being developed that can store the video signal of an image taken with a small television camera such as a CCD camera in a RAM or a mini-floppy disk, and print it out as a still image.

This television camera with a printer records video signals as digital signals on a storage medium such as RAM or a mini-floppy disk, reads out the signals recorded on the storage medium in the order in which they were recorded, and prints the image using a printing device such as a dot printer. I'm doing it like that.

[Problem to be Solved by the Invention J] A television camera with a printer is required to be made smaller as a whole as well as the camera to be made smaller, and the printer section is also required to be made smaller.

However, there is a limit to how small the width of the printer section can be because the smaller the printed image becomes, the more difficult it is to see.

[Means for Solving the Problems] The present invention provides a television camera with a printer that stores video signals as digital signals, including a memory circuit for writing video signals for one field of the video signals output by the television camera; A control circuit is provided to read the video signal recorded in the RAM of the memory circuit, and when writing the video signal to the RAM, it sequentially specifies an address that increases by l, and when reading the written video signal, it specifies a specific address. Set the address as the initial value, and after specifying the address obtained by sequentially adding a numerical value corresponding to the number of pixels of one scanning line to the initial value a number of times corresponding to the number of stored scanning lines, subtract 1 from the initial value, Add a value corresponding to the number of pixels in one scanning line to this value a number of times corresponding to the number of sequential scanning lines, repeat subtracting l from the initial value, and output this value to the memory circuit as an address signal. When reading the video signal stored in the address designation circuit and RAM, the density information of each pixel in the video signal is read from the RAM and temporarily stored, and the newly read density information and the previously read density information are A read buffer circuit that stores the average value information, a selection circuit that selects either the density information of the read buffer circuit or the average value information, and the value of the density signal from the 1-gradation counter circuit and the density selected by the selection circuit. A comparator circuit for comparing information, and an interpolation circuit for controlling the read buffer circuit and the selection circuit are provided.

[Function] When the television camera with a printer according to the present invention stores a video signal in the RAM using the address designation circuit, the scanning line is divided into pixels and the density information of each pixel is stored in the address of the RAM in order, When reading the density information of each pixel from the RAM when printing with the printer section, specify the address so that the density information of the address is read out by sequentially adding a number corresponding to the number of pixels in one scanning line to a specific address as an initial value. An address is specified by the circuit, the information stored at this specified address is transferred to the readout buffer circuit, and then the information is sent to the printer section via the 2 selection circuit, etc., so when printing an image, it is necessary to It is possible to sequentially send the density information of the pixels arranged in the printer section to the printer section.

Furthermore, even though the number of vertical pixels to be stored in the RAM is approximately 250, depending on the number of scanning lines, a readout buffer circuit that can create average density information from density information of two pixels is provided, and interpolation is performed. The circuit and selection circuit make it possible to increase the number of pixels based on the density information of the average value in addition to the density information of each pixel stored in the RAM. Even if there are many dots, printing density information corresponding to the density of the pixel can be given to each dot.

[Embodiment] An embodiment of the present invention is a television camera with a printer that prints a still image using a video signal for 1 field out of video signals from a television camera, and among the scanning lines constituting the 1 field, Each of 240 scanning lines has 408 pixels, and the density of each pixel is stored as a digital signal divided into 32 gradations.

As shown in FIG. 1, the television camera with a printer according to this embodiment has an AD converter 14 that converts a video signal from a television camera 12 as a camera section into a digital signal, and the AD converter 14 includes, for example, A video signal, which is an analog signal, is sampled with a timing cycle of 8 MHx, each scanning period of the video signal is divided into approximately 420 pixels, and each pixel is written as a density signal divided into 32 gray levels. It is sent to the buffer circuit 3o.

This write buffer circuit 3o is composed of six 5-bit registers and a latch control circuit as shown in FIG. A write signal is sequentially output to the registers 32 to 6 37 in accordance with the clock signal, and the registers 32 to 34 and the registers 35 to 6 are output only once every six pulses of the clock signal.
A readout signal is alternately outputted to the register 37, thereby sequentially storing the digital signal from the AD converter 14 in the register 32 to the sixth register 37.
Collect information for 3 pixels stored in the 2nd and 3rd registers 34! It is sent to the memory circuit 45 as a 5-bit digital signal, and the information for three pixels stored in the fourth register 35 to the sixth register 37 is collectively 11;)/
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r=v nba P +-, and is sent every time a read signal is output to the register 32 to the third register 34 and the fourth register 35 to the sixth register 37, that is, every three pulses of the clock signal. A memory signal is output to the memory circuit 45.

Note that this latch control circuit 31 outputs a write signal, a read signal, and a memory signal only for a predetermined period according to a write command signal from the control circuit 40, and the write buffer circuit 30 outputs a write signal, a read signal, and a memory signal for each of the 240 scanning lines in the l field.
The density information of 408 pixels in each scanning line is sent to the memory circuit 45.

The control circuit 40 includes a control section 41, a scanning line counter circuit 42, and an end detection circuit 43, and the control section 41 receives a synchronization signal from the video signal from the television camera 12 through the synchronization separation circuit 18. It also inputs a memory start signal from the memory switch circuit 18 and a print start signal from the print switch circuit 22.

Note that the memory switch circuit 18 is a memory switch 20.
The printed switch circuit 22 also outputs a memory start signal when the memory switch 20 is surely operated by measuring the duration that the memory switch 20 is pressed while preventing chattering. The circuit outputs a print start signal by detecting that a print switch 24 is reliably operated while preventing chattering of the switch 24.

The control unit 41 in the control circuit 40 determines the timing of horizontal synchronization and vertical synchronization and also determines the first field and second field based on the synchronization signal from the synchronization separation circuit 16, and when the memory start signal is input, When the required number of horizontal synchronization signals are input after the vertical synchronization signal after the end of one frame is input, only 51 μs after the required time has elapsed after the end of the horizontal synchronization signal and each horizontal synchronization signal input thereafter. It outputs a write command signal to the write buffer circuit 30, and is, for example, a scanning period excluding the blanking period among the scanning line periods of each scanning line from the third scanning line of the first field.
．． Approximately 420 seconds of video signal digitized
Of the 5-bit information, 408 5-bit information are stored in the memory circuit 45 via the write buffer circuit 30, and the density information of 240 scanning lines is stored in the memory circuit 45 by the scanning line counter circuit 42. When this is detected, the output of the write command signal is stopped.

Further, the control section 41 outputs a write command signal to the write buffer circuit 30, a memory operation signal to the memory circuit 45, and a plurality of types of write operation signals to the address designation circuit 50.

The memory circuit 45 to which this memory activation signal is input has a storage capacity of 85.538 bytes (84KB).
The write buffer circuit 30 is composed of an AM 48 and a memory control circuit 47, and uses the concentration information of the registers 32 to 34 and the concentration information of the fourth register 35 to the sixth register 37 in the write buffer circuit 30 as 2-byte information. RAM48 sequentially by memory signal from
The data are stored in the RAM 48 and are sequentially recorded in the specified locations in the RAM 48 from the 9 pieces of information ``Sail 1 Pu I 4 釆掩lift 空锫 defeat crocodile n 小釆 浆返V.''

This address designation circuit 50 includes an initial value setting circuit 51. Subtraction register 52, switch circuit 53, addition calculation circuit 55, first addition circuit 5B, second addition circuit 57, and latch circuit 58
When a write operation signal is input from the control circuit 40, the latch circuit 5B is first cleared to zero by a reset signal of the write operation signal, and rO is input as an address signal.
Output address J first.

Further, the initial value of the addition calculation circuit 55 inputted via the switch circuit 53 is set to "0", and the first addition circuit 5B is activated by the first addition signal corresponding to three cycles of the 8MH2 clock signal.
, the numerical value of the addition calculation circuit 55 is sequentially increased by "1", this numerical value is read into the latch circuit 58 by a latch signal which is one of the write operation signals, and is outputted from the latch circuit 58 as an address signal. The video signal converted into a bit digital signal is sequentially converted into 2-byte density information into 3 bits.
The pixel data is stored at address 1 of RAMt8 in the memory circuit 45.3 8 m L 1. w-Outputs address signals from address 0 to address 32.839 as addresses for storing density information of 9408 pixels in RAM 48.

In this embodiment, as described above, each scanning line is divided into approximately 420 pixels, and each pixel is divided into shading using 5-bit data, so the density of each pixel is set to 32 gradations to represent precise density. In addition, since the 5-bit data for 3 pixels is collectively stored as 2-byte density information in the RAM 48 of the memory circuit 45, the storage capacity of the RAM 48 can be used effectively and images with precise reward differences can be created. It can be stored as a signal.

In this way, the memory circuit 45 stores 4 lines in one scanning line.
By storing the density information of 408 pixels in each scanning line out of 20 pixels and the data of each pixel in 240 scanning lines out of 245 scanning lines, the video signal for one field is stored. .

When printing a still image based on the video signal of one field stored in the RAM 4B in the memory circuit (5), this embodiment uses a line printer in which 320 dots are arranged in a row as the printer section 85 to print a 408X
It prints a 320-pixel image, and reads out 240 pixels in the vertical direction on the screen using 240 scanning lines, and a buffer circuit 80, an interpolation circuit 71 . 320 by selection circuit 72
The number of pixels is increased and printing is performed in horizontal rows in the printer section 85.

The read buffer circuit 80 has five registers and one averaging register as shown in FIG. The second register 62 reads the information of the sixth to tenth bits, the third register B3 reads the information of the first to 15th bits, and the fourth register 84 reads the information of the 1st to 15th bits. The fifth register B5 receives 5-bit density information from any one of the registers 81 to 3rd register 63 and outputs this 5-bit density information to the selection circuit 72. The storage command signal causes the first register 61 to
The averaging register 67 stores 5-bit information from any of the third register B4 to third register 63, and outputs the average value of the information in the fourth register B4 and the information in the fifth register 65 to the selection circuit 72 as density information. It is.

When this read buffer circuit BO operates to sequentially read video signals from the memory circuit 45.

A control unit 41 in the control circuit 40 sends a read signal to the address designation circuit 5° to read an initial value into the subtraction register 52 as a read control @ sign, and sends a numerical value read into the subtraction register 52 to an addition calculation circuit via a switch circuit 53. 55, a second addition signal that causes the second addition circuit 57 to add a constant value to the addition operation circuit 55, a second addition signal that causes the addition operation circuit 55 to read the numerical value calculated by the addition operation circuit 55 into the latch circuit 58, and transfer the address from the latch circuit 5B. A latch signal and an operation signal are output as signals, and an interpolation signal is sent to the interpolation circuit 71 in conjunction with this readout control signal, and the interpolation signal is sent to the dot counter circuit 78.
A start signal is output to the printer section 85, and a print signal is output to the printer section 85.

Each signal output from this control section 41 is first of all.

After the read signal, transmission signal, latch signal, and operation signal as the read control signal are output, and then the interpolation signal is output, the second addition signal as the read control signal is
When the interpolation signal is output once, the second addition signal is output three times, and the second addition signal is output twice.
When the transmission signal is outputted 4Q times, the transmission signal is outputted once, and then the interpolation signal is outputted once and the second addition signal is outputted three times.
When the second addition signal is output 240 times, the transmission signal becomes 1 again.
A latch signal and an operation signal are output each time this transmission signal and the second addition signal are output, and when the transmission signal is output 31 times, a print signal is output.
The start signal is output every time the interpolation signal and the second addition signal are output.

Therefore, the 1 address designation circuit 50 receives a read control signal from the control section 41 in the control circuit 40, and the initial value setting circuit 51
The value of r135J recorded in
The latch circuit 58 latches this numerical value with a latch signal, and the latch circuit 58 first outputs the value of r135J as an address signal with an operation signal.
The data stored at address 35 is read out first, and this data is sent to the register 61 to the third register 63 in the read buffer circuit 60. At this time,
In the read buffer circuit 60, the third register 83 is activated by the switching signal from the data switching circuit 82, and the R
Of the data at address 135 in AM48, data from the 11th to 15th bits are stored in the third register 63, and the concentration information input to the third register 83 is sent to the selection circuit 72 via the fourth register 64. and further sent to the comparison circuit 74.

Then, by inputting the interpolation signal to the interpolation circuit 71, the interpolation circuit 71 outputs a storage command signal to the readout buffer circuit eO, and the fifth register 65 in the readout buffer circuit BO stores the density information of the I83 register 83. .

Next, in the address designation circuit 50, the second addition circuit 57 is activated by the second addition signal among the read operation signals from the control circuit 40, and the addition operation circuit 55 sets r13 to the initial value r135.
By adding the value of 13J, the value becomes r271 J
This value is read by the latch circuit 5B by the latch signal among the read operation signals, and the latch circuit 58 reads this value by r27.
1 Output the value of J as number #1@, and
The buffer circuit 130 reads out the data stored at address 71.
and sends 5-bit density information to the selection circuit 72 via the third register 63 and fourth register B4, and also sends the 5-bit density information
The values of bits to 15th bits and the 11th to 15th bits of address 271 newly stored in the fourth register B4
The averaging register 67 calculates the average value with the value obtained by the bee 21, and outputs the 5-bit information output from the averaging register 87 to the selection circuit 72 as average density information.

The selection circuit 72 to which this average value density information and the density information from the fourth register 84 are inputted is a comparison circuit which receives the selection signal from the interpolation circuit 71 and first compares the average value density information from the averaging register 87. Then, the density information of the fourth register B4 is sent to the comparison circuit 74.

After that, in the first address designation circuit 50, the second addition circuit 57 adds r13 to the value of the addition calculation circuit 55 by the ts2 addition signal.
This value r408J is output from the latch circuit 58 as an address signal, and the data at address 408 in the RAM 48 is read out and sent to the read buffer circuit 60 via the third and fourth registers 64 to the selection circuit 72, Furthermore, it is sent to a comparison circuit 74.

Therefore, the comparison circuit 74 first receives the data of the 10th bit to the 15th bit stored at address 135 of the RAM 48 in the memory circuit 45, that is, the data of the 408th dot in the stored first scanning line on the screen. Density information is input, and then the data of the 10th to 15th bits stored at address 271 of the RAM 48, that is, the density of the pixel of the 408th dot in the second scanning line and the first
Information on the average density of the pixel of the 408th dot in the scanning line is input, and furthermore, information on the average density of the 408th pixel in the second scanning line
The density information of the pixel of dot No. 8 is input, and then it is stored in the RAM.
The density information of the pixel at the 408th dot in the third scanning line is input to the comparison circuit 74 based on the data at address 407 of 48.

In this way, the address designation circuit 5o is the control section 4! in the control circuit 4o. The second addition circuit 57 is activated by the second addition signal among the read operation signals from the add operation circuit 55, which adds the numerical value of the open modulus r13111J, and outputs this numerical value from the latch circuit 5B as an address signal. This is repeated 240 times, and the 408th to 4th dots in each scanning line are
Each density information of the No. 08 dot is transferred to the register B1 through the third register 83 in the read buffer circuit BO, and only the third register 63 is operated in the read buffer circuit 6o to read the density information of the No. 408 dot in each of the 240 scanning lines. In addition to sending density information to the selection circuit 72, the interpolation circuit 71 first sends data to the readout buffer circuit 80 every time the second addition circuit 57 in the first address designation circuit 5o operates three times based on the interpolation signal from the control unit 41 in the control circuit 4o. A storage command signal is output to store the average density information in the averaging register 87, and a selection signal is then output to the selection circuit 72 to send the average density information to the comparison circuit 74.
The recording of 240 pixels in the vertical direction on the screen by 0 scanning lines is increased to 320 pixels to create density information matching the number of dots in the printer section 85.

Also, control in the control circuit 40! 41 outputs a readout operation signal and an interpolation signal, and also outputs a start signal obtained by adding the pulses of the addition signal and the pulses of the interpolation signal to the dot counter circuit 7B. Therefore, the readout buffer circuit 80 stores 240 pieces of density information. When read, 320 pulses are input to the dot counter circuit 76, and the dot counter circuit 7B outputs a carry signal to the gradation counter circuit 78, and the gradation counter circuit 78 converts the initial value to rl.
J, a 5-bit density signal whose value is increased by 11'' each time a carry signal is input is output to the comparison circuit 74, and when 31 carry signals are input, the carry signal is turned off. The value of the density signal sent to the circuit 82 and output to the comparison circuit 74 is returned to "1".

A comparison circuit 74 to which the density signal from the gradation counter circuit 78 and the density information from the selection circuit 72 are inputted is a comparison circuit 74 that receives the density information sent from the selection circuit 72 and the density information from the gradation counter circuit 7.
8, and sends a print signal indicating whether or not to print each dot to the line buffer 87 of the printer section 85.

Therefore, the address 1 designation circuit 50 is 32.63 from address 135.
Add the values up to address 9 by r138J to obtain the density information 240@ of each 408th dot from the 408th dot of the 1st scanning line to the 408th dot of the 240th scanning line.
Read from AM48, interpolation circuit 71 and selection circuit 7
2, etc., the density information of 240 pixels is converted into density information of 320 pixels, and the comparison circuit 74 compares each density information of the 32G pixels with the density information of the lightest first gradation output by the gradation counter circuit 78, and the printer outputs the density information. It is determined whether each dot of 320 pixels is to be printed at the density of 111181 and stored in the line buffer 87 of the printer section 85. When the density information of 320 pixels has been accumulated, the printer section 8
5 first prints the first line at the first gradation. The 0th gradation counter circuit 78 sets the value of the density signal it outputs to "2" in response to the carry signal from the dot counter circuit 7B, and the address designation circuit 50 and interpolation circuit 7! etc., performs the same operation as above, converts the density information of 240 pixels stored in the RAM 48 into density information of 320 dots, and the comparison circuit 74 sends a print signal indicating whether or not to print at the density of the second gradation to the printer section. 85
to the line buffer 87 in the line buffer 87.
When the information as to whether or not to print in sf $2 gradation for 320 pixels in 7 is accumulated, printing is performed at the density of the second gradation without sending the roll paper, and the gradation counter circuit 78 The value of the signal is increased sequentially from rlJ to "31", and the address specifying circuit 50, interpolation circuit 71, etc. repeat the same operation 31 times, and the printer M185 reaches 3! Printing of one line of 320 dots with 32 gradations of different densities and whites is completed.

In this embodiment, when the density information from the selection circuit 72 matches the density signal from the gradation counter circuit 7B, a print signal is sent to the printer unit 85 to print dots with a predetermined density. However, if the dot printer always prints at a constant density, the comparison circuit 74 is the selection circuit 7.
A print signal is output when the value of the density information from 2 is larger than the value of the density signal from the 1st gradation counter circuit 78, and when the value of density information for the same dot on the same line is larger, the value is The density of the dot may be increased by repeating printing accordingly, and this comparison circuit? In step 4, it is sufficient to output a print signal by performing a -match or a size comparison according to the format of the dot printer.

In this way, when one line is printed with a density of 32 gradations, the roll paper is fed by one line, and the data switching circuit 82 changes the switching signal based on the carry signal from the gradation counter circuit 78. The read buffer circuit BO
The second register 82 is activated.

In this state, the initial value r13 stored in the subtraction register 52 is transmitted via the switch circuit 53 in the address designation circuit 50 by the transmission signal of the read operation signal.
5J is transferred to the addition calculation circuit 55 and latch circuit 58, and sequentially increases r136J from address 135 again to 32,
If the address signal up to address 839 is output, the data stored in each address of RAM 48 will be output.

The 5-bit data from the 6th bit to the 1st G bit is outputted from the fourth register 64 and the averaging register 67 via the second register 82 in the read buffer circuit BO, and the data is output from the 1st to 240th scanning lines. The density information of each No. 407 dot in
It is processed as density information of dots, and printing of the second line is completed after 31 times of printing.The data switching circuit 82 changes the switching signal based on the carry signal from the 1st gradation counter circuit 78, and the ts register in the read buffer circuit 60 is processed. B! is in an operating state, and in this state, the address designation circuit 50 is set to 1.
Repeat 31 times to output the output of the address increased by r1313J from address 35 240 times.

When three lines of images of 320 pixels per line are printed in the printer section 85 in this manner, the data switching circuit 82 outputs a switching signal to the read buffer circuit 80 and switches the switch signal to operate the third register B3 in the read buffer circuit 80. At the same time, it sends a -cyclic signal to the address designation circuit 50.

In the address designation circuit 50 to which this - cycle signal is input, the initial value setting circuit 5! The subtraction register 52, which records the value r135J from , subtracts the value by rlJ using the first round signal to obtain r134J, and this value is stored in the addition calculation circuit 55 and latch circuit 58 via the switch circuit 53, and is stored as the 1st address value number. Output r134J first as the value of rlG8
By repeating 31 times to output the address plus J 240 times and performing this operation three times, one line of 320 pixels is printed based on the density information of each 405th dot in the 1st to 240th scanning lines. 404th in each scan line
Printing one line of 320 pixels based on the density information of number dots, 4th
One line of 320 pixels is printed based on the density information of dot No. 03, and "1" is subtracted from the value of the subtraction register 52 by the cycle signal again to set the value of the address signal to r133J, and the process of adding r1311J to this value is repeated. .

The output of the subtraction register 52 in the address designation circuit 50 is not only sent to the addition calculation circuit 55 and the latch circuit 58 via the switch circuit 53, but also sent to the end detection circuit 43 in the control circuit 40. A loop signal from the data switching circuit 82 is also input to the input circuit 82 . Therefore, the subtraction register 52 outputs the value "0", and the address signal of the value obtained by adding "r1311t" from address 0 is sequentially output a predetermined number of times as the address signal, and when the data switching circuit 82 outputs the round signal, the end is completed. A termination signal can be outputted from the detection circuit 43, and this termination signal causes the control unit 4!
ends and stops controlling the print operation.

The control section 41 receives a strobe signal from the printer section 85 and sends a 320-dot print signal to the line buffer 87.
By controlling the timing of transmission to the printer section B5 and also outputting a print signal to the printer section B5, information processing of the density signal can be performed in accordance with the operation of the printer section B5.

Further, in the above embodiment, the density of each dot is expressed as a 5-bit signal with 32 gradations, and the density information of 3 dots is expressed as 2-byte information.
Although the effective utilization rate of AM48 is increased, it is also possible to store the density information of one dot in 8 bits at address 1 of RAM48. In this case, as shown in FIG. 4, the register in the write buffer circuit 3G is The number is reduced to two compared to the previous embodiment, the read buffer circuit 60 also omits the registers from the third register to the third register, the data switching circuit 82 is omitted, and the address specifying circuit 50 sequentially inputs rlJ from address 0 when writing. In addition, address signals up to address 97,920 are sequentially output, and when printing, the value of the initial value setting circuit 51 is set to r407J.
and the numerical value added by the second addition circuit 57 is r408.
31 to perform the addition of r408 J 240 times as
After printing the 408th dot of each scanning line, subtract "1" from the initial value and set the value of number f11@ to r408.
J, the density information of the 407th dot in each scanning line is read out, and after the value from the subtraction register 52 becomes "0", the end detection circuit 43 uses the carry signal from the gradation counter circuit 78 to read out the density information of the 407th dot in each scanning line. By outputting an end signal, the control circuit etc. can be simplified to some extent.

Furthermore, if 16 gradations are sufficient for printing density, the density information for each dot can be processed using a 4-bit signal, so the capacity of the RAM 48 can be reduced and the control circuit can be simplified.

[Effect of the invention] The television camera with a printer according to the present invention has four scanning lines.
The video signal for one field is divided into pixels such as 08 dots and stored in a memory circuit, and when printing, the same number of pixels in each scanning line are read out from the memory circuit and printed by the printer section. The pixels arranged vertically on the screen are printed horizontally in the printer section,
On the image, the horizontal direction, which requires a large number of pixels, is converted into the paper feed direction in the printer section, and the vertical direction, which requires a small number of pixels, is used as the horizontal direction in the printer section. Therefore, printing is possible while reducing the width of the printer section. It is possible to make the still image larger and the screen of a small television camera with a printer larger to make the image easier to see.

[Brief explanation of drawings]

FIG. 1 is a block diagram of a television camera with a printer according to the present invention, FIG. 2 is a block diagram showing main parts during a storage operation in this embodiment, and FIG. 3 is a block diagram showing main parts during a printing operation in this embodiment. FIG. 4 is a block diagram showing another embodiment. 12=TV camera, 14=AD converter. 1B=synchronous separation circuit, 1B=memory switch circuit, 22=printed switch circuit. 30=Write bar, F circuit, 40=Control circuit, 4
1=Control unit, 45=Memory circuit, 48=RAM,
50=address designation circuit, 80=read buffer circuit, 71=interpolation circuit, 72=selection circuit, 74=
Comparison circuit, 7B=dot force counter circuit, 78=
Gradation counter circuit, 85=printer section, 87=line buffer. Patent Applicant Rhythm Watch Industry Co., Ltd. Procedural Amendment August 20, 1999 Patent Application No. 1-196389 2 Name of the invention Television camera with printer 3 Relationship to the person making the amendment Applicant address Taito, Tokyo 2-27-7 Taito, Ward Name: Rhythm Watch Industry Co., Ltd. 4, Agent: 2-14-10-707 (1), Sangenjaya, Setagaya-ku, Tokyo
Column “Claims” written in the specification (2) Column 7 of “Detailed Description of the Invention” written in the specification, content of amendments (1) Column “Claims” written in the specification In the column, r stated in page 2, line 11 of the specification, and line 13 of the same page.
Correct carry signal 1 to 1-carry signal as shown in the attached sheet. (2) The following corrections will be made in the "Detailed Description of the Invention" section of the specification. No. 1 Correct the statement "T-TV screen" on page 8, line 14 of the specification to rTV screen 1. No. 2 The description of j 1st bit to 15th bit 1 in page 16, line 12 to line 13 of the specification is ritt
Correct the bit to the 15th bit to 1. No. 3 Specification, page 2, line 11, same page, line 14, same page 1
In line 3, page 18, line 1 and line 15 of the same page, the description "T read control 1 @ No. 1" is corrected to "r read operation signal". On page 17 of the specification, lines 15 to 18, r outputs the start signal, and J is changed to ``outputs the start signal, and
Correct to j. 1 in lines 8 to 10 on page 21 of the specification and line 13 on the same page! The description "O bit to 15th bit 1" is corrected to "11th bit to 15th bit". No. 8 r r13 on page 27, line 11 of the specification
8 J increment" is corrected to r r13fl J increment by 1. In the 7th line of page 30 of the specification, the statement ``r31st repetition,'' is corrected to ``r31st repetition,''. No. 4 No. 5 No. 7 Regarding Attachment Patent Application No. 1-198.389, 8/1999
The "Scope of Claims" column is corrected as follows with the procedural amendment dated May 20th. j2. Claims: A camera unit that outputs a video signal; and an AD converter that converts the video signal output from the camera unit into a digital signal. A synchronization separation circuit that separates the synchronization signal from the video signal, and a printer section that is a dot printer that outputs a strobe signal during printing. A memory switch circuit capable of outputting a memory start signal, a print switch circuit capable of outputting a print start signal, a memory circuit recording a digital signal for one field in a video signal, and a predetermined digital signal from the AD converter. a write buffer circuit that reads the information recorded in the memory circuit at a predetermined timing and stores it in the memory circuit as density information of each pixel; a read buffer circuit that creates an average value with the concentration information read from the memory circuit and outputs the concentration information of the average value and the concentration information newly read from the memory circuit to a selection circuit; A dot counter circuit that counts the number of density information of each pixel to be read out and outputs a carry signal when the density information corresponding to the number of vertical pixels on the TV screen is read out; When recording the density information from the write buffer circuit into the memory circuit, the read buffer circuit sequentially increments the recording address by 1, and the read buffer circuit receives the density information from the memory circuit. When reading, a numerical value corresponding to the number of pixels in one scanning line is used as a reference value, and after repeating the process of sequentially adding numerical values corresponding to the number of pixels in one scanning line a predetermined number of times, 1 is subtracted from the reference value to keep it constant. an address designation circuit that repeats adding a numerical value corresponding to the number of pixels in a scanning line a predetermined number of times and then subtracting 1, and transmits each numerical value calculated by the addition and subtraction to a memory circuit as an address signal; A scanning line counter circuit that counts the number of scanning lines based on the synchronization signal from the separation circuit, an end detection circuit that detects that the address signal output from the address designation circuit becomes the value of the final address, and a 'PiA control section. a control circuit having a memory start signal from the memory switch circuit, which performs writing with a predetermined time delay from the vertical synchronization signal from the synchronization separation circuit and by a required time width after a predetermined time has elapsed from the horizontal synchronization signal. The control unit outputs a write command signal to the buffer circuit, a memory operation signal to the memory circuit, and a write operation signal to the address designation circuit, and when the scanning line counter circuit counts the required number of scanning lines, the control unit outputs the write command signal to the memory circuit. The output of the command signal, memory operation signal, and write operation signal is stopped, and based on the print start signal from the print switch circuit, the control section outputs the memory operation signal to the memory circuit and also outputs the read operation signal to the address designation circuit. , outputting an interpolation signal to the interpolation circuit every time the addition signal in the readout operation signal is output a predetermined number of times, a start signal for starting the operation of the dot counter circuit in accordance with the output of the readout operation signal, and a print signal to the printer unit. The end signal from the end detection circuit causes the memory operation signal, read operation signal,
and a control circuit that stops outputting the interpolation signal, start signal, and print signal. an interpolation circuit that outputs a storage command signal for causing the readout buffer circuit to calculate an average value based on an interpolation signal from a control circuit, and outputs a 1 selection signal to a selection circuit; and an interpolation circuit that sends concentration information from the readout buffer circuit to a comparison circuit. When the selection signal from the interpolation circuit is input, the selection circuit first sends the average density information output from the read buffer circuit, and then sends the density information newly read out from the memory circuit by the read buffer circuit to the comparison circuit. and a comparison circuit that compares the density information sent from the selection circuit with the value of the density signal output from the gradation counter circuit and outputs a print signal to the printer unit. camera,"

Claims (1)

[Claims] A camera unit that outputs a video signal, an AD converter that converts the video signal output from the camera unit into a digital signal, a sync separation circuit that separates a sync signal from the video signal, and a strobe signal during printing. a printer unit that is a dot printer that outputs a memory start signal, a print switch circuit that can output a memory start signal, a print switch circuit that can output a print start signal, and a memory circuit that records one field of digital signals in a video signal; a write buffer circuit that reads a digital signal from the AD converter at a predetermined timing and stores it in the memory circuit as density information of each pixel; and a write buffer circuit that reads out the information recorded in the memory circuit at a predetermined timing and writes it from the memory circuit. a read buffer circuit that creates an average value between the newly read density information and the density information previously read from the memory circuit, and outputs the density information of the average value and the density information newly read from the memory circuit to a selection circuit; , a dot counter circuit that counts the number of density information of each pixel read out from the memory circuit by the read buffer circuit, and outputs a carry signal when density information corresponding to the number of pixels for one vertical line on a television screen is read out; A gradation counter circuit that sequentially outputs density signals of different values based on the carry signal from the counter circuit, and a read buffer circuit that sequentially increments the recording address by 1 when recording density information from the write buffer circuit in the memory circuit. When reading density information from the memory circuit, a numerical value corresponding to the number of pixels in one scanning line is used as a reference value, and after repeating the process of sequentially adding numerical values corresponding to the number of pixels in one scanning line a predetermined number of times, Subtracting 1, adding a number corresponding to the number of pixels in one scanning line a predetermined number of times, and then subtracting 1 is repeated, and each value calculated by this addition and subtraction is sent as an address signal to the memory circuit. a designation circuit; a scanning line counter circuit that counts the number of scanning lines based on the synchronization signal from the synchronization separation circuit; and an end detection circuit that detects that the address signal output from the address designation circuit becomes the final address value; The control circuit further includes a control unit, the control circuit being configured to delay the vertical synchronization signal from the synchronization separation circuit by a certain period of time based on the memory start signal from the memory switch circuit, and to perform the necessary control circuit after a certain period of time has elapsed from the horizontal synchronization signal, based on the memory start signal from the memory switch circuit. The controller outputs a write command signal to the write buffer circuit, a memory operation signal to the memory circuit, and a write operation signal to the address designation circuit for the time width, and when the scanning line counter circuit counts the required number of scanning lines, control is performed. The output of the write command signal, memory operation signal, and write operation signal from the control section is stopped, and based on the print start signal from the print switch circuit, the control section outputs a memory operation signal to the memory circuit, and at the same time, the read operation is performed to the address designation circuit. a start signal that outputs a signal, outputs an interpolation signal to an interpolation circuit every time an addition signal in the read operation signal is output a predetermined number of times, and starts the operation of the dot counter circuit in accordance with the output of the read operation signal; and a printer section. a control circuit that outputs a print signal to the controller and stops outputting the memory operation signal, read operation signal, interpolation signal, start signal, and print signal from the control unit in response to the end signal from the end detection circuit; and the interpolation signal from the control circuit. an interpolation circuit that outputs a storage command signal that causes the read buffer circuit to calculate an average value and also outputs a selection signal to a selection circuit; and an interpolation circuit that sends concentration information from the read buffer circuit to a comparison circuit and outputs a selection signal from the interpolation circuit. When input, first, the density information of the average value output from the read buffer circuit is sent to the comparison circuit, and then the density information newly read from the memory circuit by the read buffer circuit is sent to the comparison circuit; 1. A television camera with a printer, comprising: a comparison circuit that compares the density information provided by the gradation counter circuit with the value of the density signal output from the gradation counter circuit and outputs a print signal to a printer section.