JPH0955857A - Color communication terminal - Google Patents

Abstract

(57) Abstract: It is an object of the present invention to provide a color communication terminal device capable of saving the trouble of re-transmitting when color transmission cannot be performed because the partner device does not have a color receiving function. In direct transmission, when color reading is instructed, the color communication capability of the partner device is checked, and if color communication is not possible, it is stored and encoded as a black and white original document and sent to the partner device. In the case of memory transmission, color reading is instructed and stored as color originals.
When the G-coded image page is transmitted to the partner's machine, the color communication capability of the partner's machine is checked. If color communication is not possible, the JPEG-coded color page is converted into a monochrome binary image and transmitted to the partner's machine. Further, in this case, the LCD indicates that the color original is being transmitted as a black and white original so that the operator does not mistakenly send the color original.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a communication terminal device capable of encoding and communicating a black and white original document and also encoding and communicating a color image.

[0002]

2. Description of the Related Art Conventionally, there has been known a communication terminal device having a color scanner and a color printer, capable of JPEG encoding and communicating for color images, and MH encoding and communicating for monochrome images.

[0003]

However, in the above-described conventional communication terminal device, even if an attempt is made to send a color image, the communication ends in error if the partner device does not have the color receiving function. Then, if there is a document that needs to be sent to the other device, there is a problem that it has to be sent again in the monochrome mode or sent by another method (for example, mail).

It is an object of the present invention to provide a color communication terminal device which can save the trouble of re-transmitting when the color transmission cannot be performed because the partner device does not have a color receiving function.

[0005]

According to one aspect of the present invention, there is provided a communication terminal having a color scanner, having a function of reading and coding a black and white image for communication and a function of reading a color image for communication by coding. In the device, a color recognition means for recognizing the presence or absence of color communication capability of the partner machine,
An image conversion means for re-encoding a multi-value encoded color image into a monochrome binary image and a control means for executing the re-encoding processing by the image conversion means based on an instruction are adopted.

With the above configuration, in the memory transmission, when color reading is instructed, a color original is read, and a multi-value encoded image is transmitted to the partner, for example, the color communication capability of the partner is checked, and color communication cannot be performed. In this case, the multi-value encoded color page is reconverted into a monochrome binary image and transmitted to the other device.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a block diagram showing the configuration of a communication terminal device according to an embodiment of the present invention.

This embodiment is a facsimile machine having a G3 facsimile function and further having a color image transmitting / receiving function, which is used by being connected to an analog telephone line.

The CPU 1-1 controls the entire apparatus through the CPU bus 1-12, and the ROM 1-2
Is used as a program memory. Also, RAM
Reference numeral 1-3 is a work memory that appropriately stores various data, and is configured to be backed up by a battery so that the stored content does not volatilize.

The image processing unit 1-4 is a known MH codec which outputs MH-encoded binary binary signals and outputs them, and conversely inputs MH coded signals to decode them into monochrome binary signals and outputs them. When RGB (Red, Green, Blue) color component signals are input as multi-valued signals of 8 bits per pixel, they are converted into L * a * b * signal components, and then JP
EG Baseline encoding is applied and output, and conversely JPEG
When baseline encoded data is input, it is decoded and L *
After obtaining each 8-bit multivalued data of a * b *, L * a * b
It is composed of a known JPEG codec and color conversion circuit for converting * to CMYK and outputting it.

The modem unit 1-5 performs modulation / demodulation of transmission / reception signals, the NCU 1-6 controls connection with the telephone network, and the clock unit 1-7 has a clock LSI having a calendar function. And so on. The operation panel 1-8 has various input keys and LCD, and has an image memory 1-
A semiconductor memory 9 is controlled so as to store image data in page units.

The color scanner 1-10 optically reads an original document and decomposes it into RGB components and outputs each color pixel as 8-bit multi-valued data, and also has an ADF mechanism. , CMYK each color multi-value signal is input, each color data is converted into binary data for color printing, and black and white binary data is input for black and white printing.

FIG. 2 shows an operation panel 1 in this embodiment.
8 is a plan view showing the external appearance of FIG.

The numeric keypad 2-1 is 12 of 0-9, #, *.
It is composed of various types of keys and is mainly used as a means for inputting telephone numbers.

The LCD display section 2-2 is used to display the state of the apparatus, communication information, and input confirmation of a telephone number.

The one-touch key 2-3 is previously stored in the RAM1-
It is used when the destination number written in 3 is read and one-touch transmission is performed. Start key 2-4
Is for starting various operations such as transmission, and the stop key 2-5 is for stopping various operations.

The color key 2-6 is used to read an original as a color original. For example, if there is a four-page original and the third page among them is a color original, then 2 is pressed.
Press the color key while loading the page. This indicates that the page to be read next is a color original. A lamp is attached to the inside of this key, and the key is repeatedly turned on and off each time the key is pressed. When reading a page, this lamp is checked, and when it is lit, it is stored as a color original, and when it is off, it is stored as a black and white original.

The resolution selection keys 2-7 are used to switch the resolution at the time of reading a document, and each time they are pressed, the standard (lamp is off), fine (lamp next to the fine character is lit), and super fine (light is on). The lamp will switch on next to the word Superfine) and the mode will switch.

Each time the transmission mode switching key 2-8 is pressed, memory transmission (a method in which all the originals are stored in the memory and then transmitted, the lamp next to the characters in the memory lights up), direct transmission (the originals are read) While sending, the lamp next to the direct characters at this time lights up)
And the mode switches.

In this embodiment, the two lamps are used for the memory transmission and the direct transmission, but one lamp is used and one of them is treated as the default (for example, the memory transmission is set to the default). Alternatively, the lamp may be turned on only at the other time (for example, direct transmission).

3 and 4 are flowcharts showing the operation of direct transmission in this embodiment.

In S301, the transmission mode switching key 2-8 is operated to set the transmission mode to direct transmission. Then, the manuscript on the manuscript table is placed, and the telephone number of the other party is input with the ten keys 2-1 or the one-touch key 2-3.

In S302, the start key 2-4 is pressed to instruct the start of transmission. This operation is not necessary when the other party is designated by the one-touch key 2-3 in S301. Next, in S303, MODEM1-5,
Dialing is done to the other party via NCU1-6.

In S304, the DIS signal is received from the partner machine. The DIS signal includes information indicating the function of the partner device, including whether or not color communication is possible.

In S305, it is checked whether or not the lamp inside is turned on by the color key 2-6 being pressed. This means that the operator is instructed to read the original as a color original.

If the color reading instruction is not given in S305, the image is read in black and white. Therefore, in S309, the encoding mode at the time of reading is set to binary black and white.

If a color reading instruction is given in S305, it is checked in S306 whether the DIS received in S304 has a declaration of a color communication function. If there is no declaration, color documents cannot be communicated, so in order to send them as black and white documents, S309
In, the encoding mode at the time of reading is set to binary black and white.

After the encoding mode is set to monochrome binary in S309, a DCS for instructing monochrome transmission is created and transmitted in S310.

If it is determined in S306 that the color communication function of the partner machine is available, color communication is possible.
In 307, the encoding mode at the time of reading is JPEG
To Subsequently, in S308, the color transmission instruction D
Create and send CS.

After transmitting the DCS in S308 or S310, the TCF is transmitted in S311. If the other device can receive normally, it receives CFR. The communication control program in the ROM 1-2 performs the exchange of signals with the partner device.

Next, in S312, display processing is performed. Then, in S313, reading is started in the coding mode set in S307 or S309. If color communication is possible, it is JPEG encoded and read. If it is not possible or originally it is monochrome communication, it is encoded and read as monochrome binary.

In step S314, the image data is transmitted.
T. Using 30 ECM procedures, here 64 Kby
The data of te is sent. When the image transmission is completed, the Q signal is transmitted in S315. If the image data sent in S314 can be received normally, MC from the other device
Receive F.

In step S316, it is checked whether all the images on one page have been sent. If it has not been sent, the process returns to S314 and the remaining image is sent. If so, the original table is checked to determine whether there is a next page in step S317.

If it is determined that there is no next page,
The process ends. If it is determined that there is, S318
Check if there is a mode change in. Mode change means that the mode (resolution, paper size, color / black and white, etc.) of the page sent now and the page sent next is changed. For example, when the resolution selection keys of the color keys 2-6 and 2-7 are changed, a mode change occurs.

If there is a mode change in S318, the process returns to S304 to receive the DIS from the partner machine. If there is no mode change, the process returns to S312 to transfer the next page of data.

FIG. 5 is a flow chart showing the reading process of the memory transmission in this embodiment.

When the start key 2-4 is pressed,
In step S401, it is checked whether there is a document on the platen. And
If it is determined that there is a document, it is checked in step S402 whether the lamp inside is lit due to the color key 2-6 being pressed. This means that the operator is instructed to read the original as a color original.

If the reading of the color original is instructed, the original is read as the color original, JPEG encoded and image memory 1-9 in S403.
To accumulate.

If the reading of a color original is not instructed, the original is read as a black and white original, binary encoded and stored in the image memory 1-9 in S404.

FIG. 6 is a flow chart showing the transmission processing of the memory transmission of this embodiment.

In S501, MODEM1-5, NCU
Dial the other party via 1-6. And
In S502, a DIS signal is received from the partner device. This D
The IS signal includes information indicating the function of the partner machine, including whether or not color communication is possible.

In step S503, it is checked whether the pages to be transmitted are stored as color pages. This is looking at the information as to whether it was stored in S403 or S404 in FIG.

If it is determined in S503 that the pages are not stored as color pages, the image is a monochrome image, so in S507, a DCS for instructing monochrome transmission is created and transmitted.

If it is determined in S503 that the pages are stored as color pages, in S504.
It is checked whether the DIS received in S502 has a declaration that the color communication function is available. If there is no declaration, color manuscripts cannot be communicated, so to send as black and white manuscripts,
In step S506, the JPEG-encoded color image is converted into a monochrome binary image. Then, in step S507, a DCS for instructing monochrome transmission is created and transmitted.

If there is a declaration that the color communication function is available in S504, the color transmission instruction DC is sent in S505.
Create and send S.

In S505 or S507, DC
After sending S, the TCF is sent in S508.
If the other device can receive normally, it receives CFR. The communication control program inside the ROM1-2 carries out the signal exchange with the partner machine.

At S509, display processing is performed. And
In S510, image data is transmitted. T. 30's E
Using the CM procedure, 64 Kbytes of data is sent here.

When the image transmission is completed, the Q signal is transmitted in S511. If the image data sent in S510 can be normally received, the MCF is received from the partner device.

In S512, it is checked whether or not all the one-page images have been sent. If not sent, S51
Returning to 0, the remaining image transmission processing is performed. If so, it is checked in step S513 whether there is a next page in the memory.

If it is determined that there is no next page, the process ends. If it is determined that there is a mode change in S514. If you have a mode change,
The process returns to S502 to receive the DIS from the partner device. If there is no mode change, the process returns to S509 to transfer the data of the next page.

FIG. 7 is a flowchart showing the display processing in S312 described above.

In step S601, it is checked whether the original is instructed to be read as a color original. If no color reading is instructed, the process ends without doing anything. If the color reading is instructed, it is checked in S602 whether the encoding mode is JPEG.

In the case of JPEG, since color transmission is being performed, it is determined in step S603 that a color original is being transmitted.
-2 is displayed on the LCD to notify the operator. JPE
If it is not G, it is being sent as a black and white binary document even if there is an instruction for color transmission. Therefore, in S604, the fact that it is being sent as a black and white document is displayed on the LCD 2-2 to notify the operator.

FIG. 8 is a flowchart showing the display processing in S509 described above.

In step S701, it is checked whether the page to be transmitted at the time of reading is stored as a color page. This is the same as whether or not a color reading instruction was given by the operator when reading the original. If it is not stored as a color page, the process ends without doing anything.

If it is stored as a color page, it is stored as a color page in S702, and JP
It is checked whether or not the EG-coded color image is converted into a monochrome binary image. If it has not been converted, color transmission is being performed. Therefore, in S703, color original transmission and LCD2-
Displayed in 2 and notify the operator. If it has been converted, it is being sent as a black-and-white binary original even if there is an instruction for color transmission. Therefore, in S704, the fact that it is being sent as a black-and-white original is displayed on the LCD 2-2 to notify the operator.

FIG. 9 is a plan view showing an example of the display performed in S603 and S703. LCD2-
No. 2 is displayed to notify the operator that the color original is being transmitted.

FIG. 10 is a plan view showing an example of the display performed in S604 and S704. LCD2
-2 is displayed, and the operator is informed that the original has been instructed to be transmitted in color but is being transmitted as a monochrome original.

In the above embodiment, by recognizing the presence / absence of the color communication function in the partner machine, if the color communication function is not available, it is automatically re-encoded into a monochrome binary image and transmitted. However, in this operation, since the other machine does not have a color communication function, a display is displayed to ask the operator whether or not to send in black and white,
The re-encoding may be performed based on the instruction of the operator who visually observed this.

[0060]

As described above, according to the present invention,
When color reading is instructed, even if it is a multi-value encoded color image, it should be re-converted into a black and white binary image and transmitted according to the operator's instruction and the recognition result of the color communication capability with the partner machine. As a result, it is possible to save the trouble of retransmitting.

[Brief description of drawings]

FIG. 1 is a block diagram showing one embodiment of the present invention.

FIG. 2 is a plan view showing the appearance of an operation panel in the above embodiment.

FIG. 3 is a flowchart showing the operation of direct transmission in the above embodiment.

FIG. 4 is a flowchart showing the operation of direct transmission in the above embodiment.

FIG. 5 is a flowchart showing a reading process of memory transmission in the above embodiment.

FIG. 6 is a flowchart showing a transmission process of memory transmission of the above embodiment.

FIG. 7 is a flowchart showing a display process in the direct transmission.

FIG. 8 is a flowchart showing a display process in the memory transmission.

FIG. 9 is a plan view showing a display example in the above embodiment.

FIG. 10 is a plan view showing a display example in the above embodiment.

[Explanation of symbols]

 1-1 ... CPU, 1-2 ... ROM, 1-3 ... RAM, 1-4 ... Image processing section, 1-5 ... Modem section, 1-6 ... NCU, 1-7 ... Clock section, 1-8 ... Operation panel, 1-9 ... Image memory, 1-10 ... Color scanner, 1-11 ... Printer section, 1-12 ... CPU bus.

Claims (6)

[Claims] 1. A multi-value coded color image in a communication terminal device having a color scanner and having a function of reading and coding a monochrome image for communication and a function of reading a color image and multi-value coding for communication. A color communication terminal device comprising: an image conversion unit for re-encoding the image into a black-and-white binary image; and a control unit for executing the re-encoding process by the image conversion unit based on an instruction. 2. A multi-value coded color image in a communication terminal device having a color scanner and having a function of reading and coding a monochrome image for communication and a function of reading a color image and multi-value coding for communication. From a color reading instruction means for instructing color reading, an image conversion means for re-encoding the image into a black and white binary image, a color recognition means for recognizing the presence or absence of color communication capability of the partner machine, 2. The color communication terminal device, comprising: a control unit for executing the re-encoding process by the image conversion unit according to the presence / absence of the instruction and the recognition result of the color recognition unit. 3. The re-encoding device according to claim 2, wherein when the other device does not have color communication capability by the color recognizing device and the color reading instructing device instructs color reading. A color communication terminal device characterized by executing processing. 4. The color scanner according to claim 2, wherein when the color reading is instructed by the color reading instructing means, the color scanner reads the color image and the multi-value encoded color image is stored in the storage means. A color communication terminal device characterized by the following. 5. The image processing apparatus according to claim 4, wherein the storage unit stores a multi-value encoded image, and the control unit executes the re-encoding process.
A color communication terminal device having a notification means for notifying this. 6. The color communication according to claim 1, wherein the encoding of the color image is JPEG encoding, and the encoding of the monochrome image is binary encoding. Terminal device.