JPH02139595A - blackboard recording device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a board recording device that is capable of writing and recording images of handwritten characters using a writing instrument, and particularly to a board recording device that is capable of forming and displaying images based on image information received from the outside. The present invention relates to a blackboard recording device that makes it possible to write on a board.

[Conventional technology] An example of the configuration of a conventional board recording device is shown in FIG.

In FIG. 9, a belt-shaped recording medium 102 is hung between a pair of rollers 100 and 101 and rotated.
An image forming apparatus 103 is arranged at a position facing the. This image forming apparatus 103 applies a voltage according to an image signal between the recording medium 102 and the recording voltage 8i104 by the recording control unit 105, and deposits toner on the recording medium 102 to record an image. The image recorded on the recording medium 102 is displayed on the display section 108 on the front of the apparatus, and then the image on the recording medium 102 is erased by the cleaning member 107.

As an image forming apparatus, for example, Japanese Patent Publication No. 51-46707
An image forming apparatus called a magnetic stylus disclosed in the above publication is used. The principle of this image formation will be explained with reference to FIG. This image forming device is a non-magnetic cylindrical IOA
A rotating magnet 109 is arranged inside the cylinder, and a large number of recording electrodes 1 are arranged densely along the axial direction on the non-magnetic cylinder 108.
04 to record an image using conductive magnetic toner 110 on a recording medium 102 consisting of an insulating layer 102a and a conductive layer 102b.

By rotating the rotating magnet 109, the conductive magnetic toner 110 is transferred to the non-magnetic cylinder 1 by the action of the magnetic field of the rotating magnet.
The recording controller 105 applies a voltage according to the image information to a large number of recording electrodes 8i104,
As a result, an image is displayed on the recording medium 102.

Furthermore, as an advanced version of the above, some devices are equipped with a recording medium inside the main body of the board recording device in order to store image information to be displayed. In such a board recording device, the information to be displayed can be displayed at any time by extracting the information to be displayed from the storage medium, sending it to the recording control section, and applying a voltage according to the image signal to the recording electrode.

[Problems to be Solved by the Invention] However, since such conventional board recording devices use a dedicated image reading device alone rather than in pairs, images recorded and displayed by other board recording devices are There was a problem that needed to be solved in that the board recording device could not display records.

Therefore, an object of the present invention is to solve such problems and to provide a board recorder that can record and display the same display image on a plurality of board recorders, and can also record and display display images of other board recorders. The goal is to provide equipment.

[Means for Solving the Problems] In order to achieve such an object, the first embodiment of the present invention is capable of inputting both image information input from an image input device and image information input from an external device through a common line. storage means for storing, means for forming an image on a recording medium based on the input image signal, display means for displaying the image formed on the recording medium, and communication with one or more other board recording devices through a common line. and communication means for transmitting and receiving image information stored in the storage means between the two.

A second aspect of the present invention is characterized in that, when the content of the image information is changed, the communication means transmits a signal notifying the connected board recording device of the change in the image information.

[Function] In the first embodiment of the present invention, since it becomes possible to transmit and receive image information from one's own board recording device to another board writing device using the communication means, image information can be exchanged between the board writing devices. It is possible to give and receive.

In the second form of the present invention, in addition to the first form, when the image information in the own storage means is changed, that is, when the display is switched, the communication means outputs a signal to that effect to the connection partner. The other party can also know that the display has been switched, and can switch the display screen by again instructing the other party to read a new image from the communication means.

[Example] Hereinafter, an example of the present invention will be described in detail with reference to the drawings.

FIG. 1 shows the basic configuration of an embodiment of the present invention.

In FIG. 1, 1300 is a storage means for storing both image information input from the image input device 1100 and image information input from an external device through the common line 1200.

1400 is means for forming an image on a recording medium based on an input image signal.

1500 is a display means for displaying image information formed on the recording medium.

1600 is a communication means for transmitting and receiving image information stored in the storage means with one or more other board recording devices through the common line.

When the content of the image information is changed, the communication means transmits a signal notifying the change of the image information to the connected board recording device.

FIG. 2 shows the mechanical configuration of an embodiment of the present invention.

In FIG. 2, 1 is the main body of the board writing apparatus, and 2 is a display section formed on the front surface thereof. 3 is a belt-shaped recording medium, and in the illustrated embodiment, the recording medium is in the form of an endless belt. The recording medium 3 is a pair of rollers 4.5
The hook is rotated and held in a flat state by the display section 2, and is moved along the display section 2 by rotation of the rollers 4.degree.5.

This recording medium 3, like the recording medium 102 shown in FIG. 7, consists of an insulating layer on the front surface and a conductive layer on the back surface.

An image forming device (display means) 6 for recording an image on a recording medium 3 using conductive magnetic toner is disposed at the bottom of the main body 1 of the device. This image forming device 6 is a device similar to the magnetic stylus type shown in FIG. Further, an image is formed by applying a voltage according to image information from a recording control section to a recording electrode 7 similar to the recording electrode 104 shown in FIG. 7.

Since the recording medium 3 consists of an insulating layer on the front side and a conductive layer on the back side, conductive magnetic toner 9 adheres to the recording medium in accordance with the above image information, forming a toner image on the recording medium. .

When the recording medium 3 is moved by rotating the rollers 4 and 5, the image formed on the recording medium is moved to the display section 2 and displayed.

As a means for erasing the toner image formed on the recording medium 3, a cleaning member 10 is disposed behind the recording medium inside the main body 1 of the apparatus. This cleaning member 10 is provided with a flat iron plate 11 facing the recording medium 3, and a permanent magnet 12 for holding toner on the surface of the iron plate 11 is arranged on the back side of the iron plate 11. has been done. This cleaning member 10 erases toner adhering to the surface of the recording medium 3 by rubbing it with toner spikes formed on the surface of the iron plate 11.

FIG. 3 shows a circuit configuration of an embodiment of the present invention. In FIG. 3, the board writing device A is indicated by dotted lines.

B, C, D, and E are connected via a common signal line.

Since the device configuration is the same for each board writing device, the circuit configuration of the control system related to the present invention of the board writing device will be explained.

In FIG. 3, 20 is a central processing unit (CPU) that controls the entire device. The CPU performs the function of a communication means.

21a is an interface (Ilo) for inputting image information transmitted from a common line, computer, facsimile, image reading device, word processor, etc.; 22 is a random access memory (RA
M).

A recording control section 23 sends the image information stored in the RAM 22 to the recording electrode 7, and is generally a well-known circuit called a driver.

24 is a read-on memory (ROM); ROM24
A control program for the entire device that is executed by the CPII 20 is stored in the CPII 20 . Further, the ROM 24 has a storage area for several pages, and stores image information that is frequently displayed in advance.

The readout light selection circuit 25 connects to the connected board recording devices B, C,
This circuit selectively selects display images D and E, and consists of a selection switch such as a television channel. , H is read out and sent to the board writing device A.

This readout selection circuit 25 may be built into the main body of the apparatus, or may be separated from the main body of the apparatus as a control device for selecting a read image.

Reference numeral 26 denotes an editing circuit capable of processing images stored in the RAM 22.

FIG. 4 shows the external appearance of the read selection circuit 25 shown in FIG.

In FIG. 4, reference numeral 31 indicates human keys such as a numeric keypad for inputting numbers, a clear key, a return key, and an execution key.

32 is a number display section that displays the connected device number. 33 is a display section 33 that displays a pattern number built into the connecting device. Other readout lamps 34,
An output lamp 35 and a display change notification lamp 36 are provided on the main body. The two types of display parts 32 and 33 are segment LE
The number is displayed by emitting light D.

The operator enters the number of the device to be connected to which the operator wishes to read, and the name of the device to which he wishes to read, using the key 31.
Input the built-in pattern number in 0M and RAM. Note that the image information stored in the connected RAM is stored at a specific address, so for example, when reading a display image, when entering the pattern number,
0'' is input.Furthermore, a storage address corresponding to each image pattern may be specified.

When the operator presses the execution key, input information is transmitted from the read selection circuit 25 to the CPU 20. In response to this input instruction, the readout operation of the designated built-in pattern is performed as described later. At this time, the readout lamp 34 is lit in the readout selection circuit 25 on the readout side, and the readout selection circuit 25 on the readout side Then, the output lamp 35 lights up together with the data output. At the same time as this output lamp 35 is turned on, the device number of the other party read out is displayed on the device number display section 32.

3δ is a display change notification lamp that indicates when there is a change in the memory contents of the RAM 22 of each board recording device, and image information is input to the board recording device from an externally connected computer, image reading device, etc. Lights up when This display change notification lamp 36 and device number display section 32
This makes it possible to know which board recording device changed the displayed image and when. Further, it goes without saying that a buzzer may be used as the display change notification lamp 36.

FIG. 5 shows the circuit configuration of the read selection circuit 25 shown in FIG. 4.

In FIG. 5, the same parts as shown in FIG. 4 are denoted by the same reference numerals, and detailed explanations will be omitted.

In FIG. 5, reference numeral 38 denotes 170 which is connected to the CPU 20 (see FIG. 3) via a common signal line. 37 is CP
U, and displays numerical information on the device number display section 32 and built-in pattern number display section 33 based on input information from the input key 31 and input information from the CPU 20.

Further, when issuing an instruction to read an image from the input key 31, the CPII 37 turns on the read lamp 34 in response to the input signal from the input key 31.

Furthermore, when an image is read out from the board recording device to which the selective readout circuit 25 belongs, the CPU 37 turns on the output lamp 35 in response to an instruction from the CPII 20. The PII 37 also lights up the display change notification lamp 36 in response to an instruction from the PU 20.

Next, the operation of the embodiment of the present invention will be explained with reference to the flowcharts of FIGS. 6 and 7.

FIG. 6 shows a control procedure performed by the CPU 20 shown in FIG. 3 when image information is externally input.

FIG. 7 shows a control procedure when the cpυ20 transfers image information as a communication means.

In FIG. 6, for example, when the CPt 120 of the board recording device A (see FIG. 3) inputs image information from an externally connected image processing device, the CPU 20 temporarily stores the input image information in the RAM 22 (step 5t-52). .

Next, the CPt 120 reads out the image information stored in the RAM 22 and transfers it to the recording control section 8. The recording control unit 8 applies a voltage to the recording electrode based on this image information, records the image on the recording medium 3, and displays the image on the display unit 2 (step S3).
.

Subsequently, the CPt 120 outputs a display image change signal notifying the change of the display image to all other board recording devices, and ends this control procedure (step S4).

On the other hand, when the CPt 120 receives the above-mentioned display image change from another board recording device, the process shifts to the control procedure shown in FIG. In FIG. 7, the CPt 120 transfers the display image change signal to the readout selection circuit 25 and turns on the display change notification lamp 36.

Further, the device number that sent this display image change signal, for example, the board recording device B, is displayed on the device number display section 32 of the selection circuit 25 (step SS). Even if the board recording device A receives the display image change signal, the changed display image is not displayed.
When reading from the AM 22, the user of the board recording device A can input an instruction to a desired memory area from the read selection circuit 25.

The instruction to read the display image and built-in image information of the connection destination is detected by the CPt 120 in step S7, and the device number of the connection destination desired to be read is input (step S8
), input the pattern number built into the device you wish to read (
Based on step S9), the specified connection destination or white image information pattern is read out (step S9).
0). The read image information is temporarily stored in the built-in II8 so that the operator can select whether or not to display it (step 512).

Therefore, if the currently displayed image cannot be erased, that is, cannot be displayed immediately, it can be displayed later at a desired time. Furthermore, when other images are being recorded and displayed, the display may be automatically stopped. In response to the user's display instructions, the CPt 120 performs step 5.
The image information read out in step 13 is displayed. If the user wishes to edit this display image, the user performs the editing process using the editing circuit 26. CPO20 is the editing circuit 26
The image information in the built-in RAM is edited based on the instructions input from the controller, the edited image information is stored in the RAM 22, and a display instruction from the user is awaited (step S14-515-5ll).
).

Edited and unedited image information is stored and saved in the main body and externally connected recording medium according to instructions from the user's readout selection circuit z5 (steps S1δ→S17).
).

Since the image information temporarily stored in the built-in RAM is used for display purposes, when a new display image edited by the editing circuit 26 is input, the content of the display image before editing is changed. Therefore, the image information to be stored should be stored in a storable 5-RAM with a backup power supply or in an externally connected recording medium (floppy disk device) if it is inside the main body of the apparatus.

Thereafter, by executing the above-described procedure, it becomes possible to record and display image information transmitted from other board recording devices or image processing devices.

In addition, when using multiple board recording devices, by transferring images from one board recording device to multiple other board recording devices H via a common line, all the board recording devices can simultaneously display the same image. It is also possible to display.

In such a case, and furthermore, in a case where a large number of display changes occur at the connection destination, rapid processing can be achieved by performing interrupt input processing on the input of the display change signal.

Next, an application form of the embodiment of the present invention will be explained.

This example is an example in which an image sent from another board writing device and an image sent from an image processing device are displayed separately. FIG. 8 schematically shows the front appearance of the display section 2 shown in FIG.

In FIG. 8, 60 indicates a display image area, and the display image area 60 is divided into four parts. In the display image area divided into four, there is a board recording device B to be connected.

Display images C, D, and H are allocated, and the area of each display image is reduced to 174 and displayed in the display image area 60. Further, 61b, 61c, 61d, and 61e are display change notification lamps attached to the frame 62, and correspond to the number of divided screens (four in this case). The display change notification lamps 61b to 61e have the same function as the display change notification lamp 36 shown in FIG.

In order to perform split screen display as shown in FIG. 8, the following process may be performed. That is, the RAM 22 shown in FIG.
Inside, display image information for four screens of the board recording devices B, C, D, and E is stored at their designated addresses. The image information of the four screens is reduced to an area of 174 by processing such as thinning out the image information in the editing circuit 26,
The CPU 20 simultaneously displays four screens in the specified area shown in FIG.

In this state, for example, when the display image of the connected board recording device B is changed, the display change notification lamp 61b corresponding to the display area B of the four divided display image areas flashes. The user of board recording device A then recognizes that the display image of device B has been changed.

If the user wants to see a new image from device B, he or she performs a readout operation for the display information stored in device B using the readout selection circuit 25 as described above. Furthermore, it is convenient for the user of device A to control this readout operation by simply touching the return key without specifying the readout destination, for example, to read out only the image information in which the display image has been changed.

The new display image information of the read board recording device B is RA
From M22, C, D, and H are newly stored in the designated address of device B in the display RAM built in device A, and the area is reduced to 1/4 in the editing circuit 26, and the display remains unchanged.
The screen is divided into four screens and displayed again.

Note that these processes are performed based on instructions from the CPO 20, but since the control procedure for dividing the display screen and displaying different images is well known, a detailed explanation thereof will be omitted.

The above is an example of dividing and displaying only the display image of the connected board recording device. It may be configured such that it can be read out and displayed in sections at any time. In this case, read selection circuit 2
The read command and read address input from 5 are transmitted to the connected board recording device, and the transmission information from the connected board writing device in response to this instruction command is stored in the RAM 22.

Furthermore, in this embodiment, the number of divisions of the display screen is set to 4, but if the number of connected board recording devices is small, it may be adjusted to that number, or if there are many, it can be divided into 9 divisions, etc. depending on the user's purpose. It is best to configure it as possible. When the number of connected devices is indefinite, it is convenient to variably set the number of divisions from the readout selection circuit.

Furthermore, in this embodiment, an example is shown in which a request is made to the other party's board recording device to send an image, but in response to an instruction from the other party to send an image, the own board recording device receives the image information. Of course, it is also possible to do so.

[Effects of the Invention] As explained above, according to the present invention, in the first embodiment of the present invention, it is possible to transmit and receive image information from one's own board recording device to another board writing device using a communication means. Therefore, image information can be exchanged between the board recording devices.

In the second form of the present invention, in addition to the first form, when the image information in the own storage means is changed, that is, when the display is switched, the communication means outputs a signal to that effect to the connection partner. The other party can also know that the display has been switched, and the operator can switch the display screen by again instructing the other party to read a new image from the communication means.

[Brief explanation of the drawing]

Figure 1 is a block diagram showing the basic configuration of an embodiment of the present invention. Figure 2 is a side view showing the mechanical configuration of an embodiment of the invention. Figure 3 is a circuit diagram of a control system of an embodiment of the invention. 4 is a perspective view showing the external appearance of the read selection circuit 25 shown in FIG. 2; FIG. 5 is a circuit diagram showing the circuit configuration of the read selection circuit 25 shown in FIG. 2; FIGS. 6 and 7. The figure is a flowchart showing the control procedure executed by the CPO 20 shown in FIG. 2, FIG. 8 is a front view showing the display screen configuration of another embodiment of the present invention, and FIG. 9 is a side view showing the mechanical configuration of the conventional example. FIG. 10 is a side view showing the image forming principle of the image forming apparatus 103 shown in FIG. 9. FIG. DESCRIPTION OF SYMBOLS 1... Board recording device main body, 2... Display unit, 3... Recording medium, 4.5... Roller, 6... Image forming means, 7... Recording electrode, 8... Recording control unit, 9... Conductive magnetic toner 10... Cleaning member, 11... Iron plate, 12... Permanent magnet, 13-... Internal storage medium, 14... Connected board recording device, 15... Internal storage medium of the connected board recording device, 16
. . . Readout image selection control device, 31 . . . Person key 32 . . . Device number display unit, 33 . ...Display change notification lamp, 60...Display image area, 61b, c, d, e...Display change notification lamp, 62.
・Frame body. Figure 1 is a block diagram of the actual KF11 of the present invention! Figure 1 of the first page of the embodiment of the invention Figure 2 Reading selection circuit 4 of the embodiment of the invention Figure 5 Book J So Sun Moon Jikko 1 line CPU 20 % 1 la 1 Tekawa page display flowchart Figure 6 Book 2 and others lol 1 # L ko 1 front view Figure 8 Conventional example Side view Figure 9

Claims (1)

[Claims] 1) Storage means for storing both image information input from an image input device and image information input from an external device through a common line, and forming an image on a recording medium based on the input image signal. means, a display means for displaying an image formed on the recording medium, and a communication means for transmitting and receiving image information stored in the storage means with one or more other board recording devices through the common line. A board recording device characterized by comprising the following. 2) In the board recording device according to claim 1, when the content of the image information is changed, the communication means transmits a signal to the connected board recording device to notify that the image information has been changed. A board recording device characterized by: