JP2004120410A - Facsimile communication apparatus and control method of the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a facsimile communication apparatus and a control method of the same which allow a transmitter to designate a color transmission in 600 dpi when some of the transmitters are judged to support color reception function in 600 dpi, if, for example, a receiver supports the color reception function in 1,200 dpi, and surely enable the color transmission in 400 dpi or less if the receiver does not support the color reception in 600 dpi. <P>SOLUTION: In the facsimile communication apparatus capable of communicating color information, when an designation for transmission by a resolution of the color which own device does not support is received from the transmitter, an initial identifying signal for indicating that a color reception function of a high resolution has not been equipped is retransmitted thereafter. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a facsimile apparatus, and more particularly to a facsimile communication apparatus capable of performing color facsimile communication and a control method thereof.
[0002]
[Prior art]
Conventional facsimile machines are designed based on ITU-T recommendations. In this recommendation, the receiver notifies the transmitter of the presence or absence of the JPEG reception function and the presence of the full color reception function, and the transmitter indicates to the receiver whether or not JPEG transmission is specified and whether or not full color transmission is specified. And notify.
[0003]
Here, in JPEG encoding, when full-color transmission is designated, color transmission is performed. The mandatory resolution for color transmission is 200 dpi.
[0004]
However, here, the receiver notifies the transmitter of the presence or absence of the reception function at 300 dpi, the unit of notification of the presence or absence of the reception function at 400 dpi, and the presence or absence of the reception function at 300 dpi or 400 dpi in color. Means for notifying the presence or absence of the reception function at 100 dpi in color, means for notifying the presence or absence of the reception function at 600 dpi in color, means for notifying the presence or absence of the reception function in 1200 dpi in color, and 200 dpi. Means for notifying the presence or absence of the reception function, means for specifying JPEG transmission from the transmitter to the receiver, means for specifying full-color transmission, means for specifying transmission at 300 dpi, and means for specifying transmission at 400 dpi. Means for designating transmission at 300 dpi or 400 dpi in color, and means for designating transmission at 100 dpi in color , Transmitting designation means at 600dpi in color, transmitting designation means for 1200dpi in color, there is a transmission designation means at 200 dpi.
[0005]
Here, some transmitters, for example, determine that the receiver also supports the color reception function at 600 dpi when the receiver supports the color reception function at 1200 dpi.
[0006]
[Problems to be solved by the invention]
However, in the above conventional example, if the receiver does not support color reception at 600 dpi, as described above, some transmitters support, for example, the color reception function at 1200 dpi for the receiver. Is determined to support the color reception function at 600 dpi, and if the transmitter specifies color transmission at 600 dpi, a communication error occurs because the receiver does not support color reception at 600 dpi. There's a problem.
[0007]
The present invention determines that some transmitters, for example, support the color receiving function at 600 dpi when the receiver supports the color receiving function at 1200 dpi. Provided is a facsimile communication apparatus capable of performing color communication at 400 dpi or less and a control method thereof when color transmission at 600 dpi is designated and the receiver does not support color reception at 600 dpi. It is the purpose.
[0008]
[Means for Solving the Problems]
According to the present invention, in a facsimile communication apparatus capable of communicating color information, a transmitter specifies means for transmitting at 300 dpi or 400 dpi in color, means for specifying transmission at 100 dpi in color, and 600 dpi in color. , A unit that specifies color transmission at 1200 dpi, and a unit that specifies transmission at 200 dpi. These reception functions are all independently defined facsimile communication devices. is there.
[0009]
Embodiments and Examples of the Invention
[First Embodiment]
FIG. 1 is a block diagram showing a facsimile apparatus FS1 according to a first embodiment of the present invention.
[0010]
In the facsimile apparatus FS1, an NCU (network control unit) 2 connects to a terminal of the line to use the telephone network for data communication and the like, controls connection of a telephone switching network, and switches to a data communication path. To hold the loop. The NCU 2 connects the telephone line 2a to the telephone (CML off) and connects the telephone line 2a to the facsimile apparatus (CML on) under the control of the bus 26. In a normal state, the telephone line 2a is connected to the telephone 4 side.
[0011]
The hybrid circuit 6 separates the transmission system signal and the reception system signal, sends the transmission signal from the addition circuit 12 to the telephone line 2a via the NCU 2, receives the signal from the other party via the NCU 2, and The signal is sent to the modem 8 via 6a.
[0012]
The modulator / demodulator 8 is based on ITU-T Recommendation V.3. 8, V. 21, V.I. 27ter, V.I. 29, V.I. 17, V.I. This is a modulator / demodulator that performs modulation and demodulation based on the signal 34, and each transmission mode is designated by control of the bus 26. The modulator / demodulator 8 receives a transmission signal from the bus 26, outputs modulated data to the signal line 8a, receives a received signal output to the signal line 6a, and outputs demodulated data to the bus 26.
[0013]
The calling circuit 10 receives telephone number information by a signal from the bus 26, and outputs a DTMF selection signal to the signal line 10a.
[0014]
The adder circuit 12 inputs the information of the signal line 8a and the information of the signal line 10a, and outputs the result of the addition to the signal line 12a.
[0015]
The reading circuit 14 is a reading circuit capable of reading color information, and outputs read data to the bus 26.
[0016]
The recording circuit 16 is a recording circuit capable of recording color information, and sequentially records information output to the bus 26 line by line.
[0017]
The memory circuit 18 stores a work memory (RAM), raw information of read data or encoded information, and stores received information or decoded information via the bus 26. Use to
[0018]
The operation unit 20 includes a one-touch dial, a speed dial, a numeric keypad, a start key, a stop key, a set key, a color transmission selection key, a registration key to the memory circuit 18, and other function keys. Output to the bus 26. The operation unit 20 has a display unit for inputting and outputting information output to the bus 26.
[0019]
A CPU (central processing unit) 22 controls the entire facsimile and executes a facsimile transmission control procedure. The control program is stored in a ROM 24.
[0020]
In a facsimile apparatus capable of communicating color information, the ROM 24 includes means for notifying the transmitter of the presence / absence of the JPEG reception function, means for notifying the presence / absence of the full-color reception function, and presence / absence of the reception function at 300 dpi. Means for notifying, means for notifying the presence or absence of the reception function at 400 dpi, means for notifying the presence or absence of the reception function at 300 dpi or 400 dpi in color, and means for notifying the presence or absence of the reception function at 100 dpi in color And means for notifying the presence or absence of the color 600 dpi reception function, means for notifying the presence or absence of the color 1200 dpi reception function, and means for notifying the presence or absence of the 200 dpi reception function, On the other hand, means for designating JPEG transmission from the transmitter to the receiver, means for designating full-color transmission, and 300 dpi A means for specifying the transmission, and means for specifying the transmission in 400 dpi.
[0021]
Then, the transmitter is a transmission designation unit at 300 dpi or 400 dpi in color, a transmission designation unit at 100 dpi in color, a transmission designation unit at 600 dpi in color, and a transmission designation unit at 1200 dpi in color. , And 200 dpi, and these receiving functions are all independently defined.
[0022]
Here, when receiving a transmission designation at a color resolution not supported by the transmitter itself, the transmitter retransmits an initial identification signal indicating that the transmitter does not have a high-resolution color reception function. Specifically, the receiver supports 200 dpi, 400 dpi, and 1200 dpi as a color receiving function, and when a color transmission at 600 dpi is specified from a partner transmitter, the receiver supports 200 dpi and 400 dpi as a color receiving function. Retransmit the initial identification signal indicating that the communication has been performed.
[0023]
The above control program is stored in the ROM 24.
[0024]
Next, the operation of the first embodiment will be described.
[0025]
FIG. 2 is a diagram showing a specific example of a protocol signal used at the time of color transmission in the first embodiment.
[0026]
Here, the 15, 42, 43, 68, 69, 97, 98, 110, and 111 bits of the FIF of the DIS, DTC, and DCS signals are determined by the current ITU-T recommendations.
[0027]
The 15 bits of the FIF of the DIS and DTC signals indicate the presence / absence of a reception function at 200 dpi, and the 15 bits of the FIF of the DCS signal indicate transmission designation at 200 dpi.
[0028]
The 42 bits of the FIF of the DIS and DTC signals indicate the presence / absence of a reception function at 300 dpi, and the 42 bits of the FIF of the DCS signal indicate transmission designation at 300 dpi.
[0029]
43 bits of the FIF of the DIS and DTC signals indicate the presence or absence of a reception function at 400 dpi, and 43 bits of the FIF of the DCS signal indicate transmission designation at 400 dpi.
[0030]
68 bits of the FIF of the DIS and DTC signals indicate the presence or absence of the reception function of the JPEG encoding, and 68 bits of the FIF of the DCS signal indicate the transmission specification of the JPEG encoding.
[0031]
69 bits of the FIF of the DIS and DTC signals indicate the presence or absence of a full color mode reception function, and 69 bits of the FIF of the DCS signal indicate transmission of the full color mode.
[0032]
97 bits of the FIF of the DIS and DTC signals indicate the presence or absence of a reception function at 300 dpi or 400 dpi in color reception, and the 97 bits of the FIF of the DCS signal indicate color transmission designation of 300 dpi or 400 dpi.
[0033]
The 98 bits of the FIF of the DIS and DTC signals indicate the presence or absence of a reception function at 100 dpi in color reception, and the 98 bits of the FIF of the DCS signal indicate transmission designation in color at 100 dpi.
[0034]
The 110 bits of the FIF of the DIS and DTC signals indicate the presence / absence of a reception function at 600 dpi in color reception, and the 110 bits of the FIF of the DCS signal indicate transmission designation in color at 600 dpi.
[0035]
The 111 bits of the FIF of the DIS and DTC signals indicate the presence or absence of a reception function at 1200 dpi in color reception, and the 111 bits of the FIF of the DCS signal indicate color transmission designation at 1200 dpi.
[0036]
FIGS. 3, 4, and 5 are flowcharts showing the operation of the first embodiment.
[0037]
In S2, the memory circuit 18 is initialized via the bus 26, in S4, the display unit of the operation unit is cleared via the bus 26, and in S6, the CML of the NCU 2 is turned off via the bus 26.
[0038]
In S8, it is determined whether or not facsimile reception has been selected. If facsimile reception has been selected, the process proceeds to step S12. If facsimile reception has not been selected, the process proceeds to step S10 to perform other processing.
[0039]
In S12, the CML of the NCU 2 is turned on via the bus 26, and in S14, the pre-procedure is executed. Here, based on FIG. 2, the FIF 15, 42, 43, 68, 69, 97 , 98, and 111 bits are set to 1 and the 110 bit of the FIF of the DIS signal is set to 0 and transmitted.
[0040]
In S16, it is determined whether or not 68 bits of the FIF of the DCS signal is 1. That is, it is determined whether JPEG transmission has been designated or not. If JPEG transmission has been designated, the process proceeds to step S22, and if JPEG transmission has not been designated, the process proceeds to step S18.
[0041]
In S18, a monochrome image signal is received and recorded in the designated communication mode, and in S20, a post-procedure is executed.
[0042]
In S22, it is determined whether or not the 69 bit of the FIF of the DCS signal is “1”. That is, it is determined whether or not full-color transmission has been designated. If full-color transmission has been designated, the process proceeds to step S24, and if full-color transmission has not been designated, the process proceeds to step S36.
[0043]
In S24, it is determined whether or not the 110 bit of the FIF of the DCS signal is “1”. That is, it is determined whether or not there is a transmission designation in the color / grayscale 600 dpi. If there is a transmission designation in the color / grayscale 600 dpi, the process proceeds to step S30. If there is no transmission designation in the color / grayscale 600dpi, The process proceeds to step S26.
[0044]
In S26, the color image signal is received and recorded in the designated communication mode (including the resolution), and the post-procedure is executed in S28, and the remaining pre-procedure is executed in S30. Here, based on FIG. 2, the bits 15, 42, 43, 68, 69, 97, and 98 of the FIF of the DIS signal are set to 1, and the bits 110 and 111 of the FIF of the DIS signal are set to 0, and transmitted.
[0045]
In S32, it is determined whether or not the 110 bit of the FIF of the DCS signal is “1”. That is, it is determined whether or not there is a transmission designation in the color / grayscale 600 dpi. If there is a transmission designation in the color / grayscale 600 dpi, the process proceeds to step S34, where a communication error occurs, and the transmission in the color / grayscale 600dpi is performed. If there is no designation, the process proceeds to step S26.
[0046]
In S36, it is determined whether the 110 bit of the FIF of the DCS signal is 1 or not. That is, it is determined whether or not there is a transmission designation in the color / gray scale 600 dpi. If there is a transmission designation in the color / gray scale 600 dpi, the process proceeds to step S42, and if there is no transmission designation in the color / gray scale 600 dpi. The process proceeds to step S38.
[0047]
In S38, the gray scale image signal in the designated communication mode (including the resolution) is received and recorded, and in S40, the post-procedure is executed, and in S42, the remaining pre-procedure is executed. Here, based on FIG. 2, the bits 15, 42, 43, 68, 69, 97, and 98 of the FIF of the DIS signal are set to 1, and the bits 110 and 111 of the FIF of the DIS signal are set to 0, and transmitted.
[0048]
In S44, it is determined whether or not the 110 bit of the FIF of the DCS signal is “1”. That is, it is determined whether or not there is a transmission designation in the color / grayscale 600 dpi. If there is a transmission designation in the color / grayscale 600 dpi, the process proceeds to step S46, where it is determined that a communication error has occurred and the color / grayscale 600 dpi If there is no transmission designation, the process proceeds to step S38.
[0049]
[Second embodiment]
The second embodiment of the present invention is different from the first embodiment in that all the color reception functions are 100 dpi, 200 dpi, 300 dpi, 400 dpi, 600 dpi, and 1200 dpi independently of monochrome, and completely independent of the transmitter. An embodiment having means for designating from the transmitter to the receiver completely independent of monochrome as 100 dpi, 200 dpi, 300 dpi, 400 dpi, 600 dpi, and 1200 dpi as color transmission designation resolutions It is.
[0050]
FIG. 6 is a diagram showing a specific example of a protocol signal at the time of color transmission in the second embodiment.
[0051]
Here, the 68, 69, 98, 110 and 111 bits of the FIF of the DIS, DTC and DCS signals are determined by the current ITU-T recommendation, and the X, X + 1 and X + 2 bits are newly provided.
[0052]
68 bits of the FIF of the DIS and DTC signals indicate the presence or absence of the reception function of the JPEG encoding, and 68 bits of the FIF of the DCS signal indicate the transmission specification of the JPEG encoding.
[0053]
69 bits of the FIF of the DIS and DTC signals indicate the presence or absence of a full color mode reception function, and 69 bits of the FIF of the DCS signal indicate transmission of the full color mode.
[0054]
The 98 bits of the FIF of the DIS and DTC signals indicate the presence or absence of a reception function at 100 dpi in color reception, and the 98 bits of the FIF of the DCS signal indicate transmission designation in color at 100 dpi.
[0055]
The 110 bits of the FIF of the DIS and DTC signals indicate the presence / absence of a reception function at 600 dpi in color reception, and the 110 bits of the FIF of the DCS signal indicate transmission designation in color at 600 dpi.
[0056]
The 111 bits of the FIF of the DIS and DTC signals indicate the presence or absence of a reception function at 1200 dpi in color reception, and the 111 bits of the FIF of the DCS signal indicate color transmission designation at 1200 dpi.
[0057]
The X bit of the FIF of the DIS and DTC signals indicates the presence or absence of a reception function at 200 dpi in color reception, and the X bit of the FIF of the DCS signal indicates the designation of color transmission at 200 dpi.
[0058]
The X + 1 bit of the FIF of the DIS and DTC signals indicates the presence or absence of a reception function at 300 dpi in color reception, and the X + 1 bit of the FIF of the DCS signal indicates transmission designation in color at 300 dpi.
[0059]
The X + 2 bits of the FIF of the DIS and DTC signals represent the presence or absence of a reception function at 400 dpi in color reception, and the X + 2 bits of the FIF of the DCS signal represent color transmission designation at 400 dpi.
[0060]
In the second embodiment, when one of the 68 and 69 bits of the FIF is set to 1, in the DIS / DTC signal, at least 98, 110, 111, X, X + 1, and X + 2 bits of the FIF are set to one. In the DCS signal, one of the 98, 110, 111, X, X + 1, and X + 2 bits of the FIF is set to 1.
[0061]
【The invention's effect】
According to the present invention, some transmitters determine that the receiver supports the color reception function at 600 dpi, for example, if the receiver supports the color reception function at 1200 dpi. When the color transmission is specified in the receiver, if the receiver does not support the color reception at 600 dpi, the receiver can again notify that the receiver does not support the color reception function of 1200 dpi. Color communication is possible, and there is an effect that it is easy for the user to use.
[0062]
According to the fourth aspect of the present invention, the notification of the function of receiving the resolution of the color communication and the designation of the resolution of the color communication can be reliably and completely performed independently of the monochrome.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a facsimile apparatus FS1 according to a first embodiment of the present invention.
FIG. 2 is a diagram showing a specific example of a protocol signal used at the time of color transmission in the first embodiment.
FIG. 3 is a flowchart showing the operation of the first embodiment.
FIG. 4 is a flowchart showing the operation of the first embodiment.
FIG. 5 is a flowchart showing the operation of the first embodiment.
FIG. 6 is a diagram showing a specific example of a protocol signal at the time of color transmission in the second embodiment.
[Explanation of symbols]
FS1: facsimile machine,
2 ... NCU,
4: Phone,
6 ... Hybrid circuit,
8. Modem,
10. Calling circuit,
12 ... addition circuit,
14 ... Reading circuit,
16. Recording circuit,
18 ... Memory,
20 ... operation unit,
22 ... CPU,
24 ... ROM,
26 ... Bus.

Claims (5)

In a facsimile communication device capable of communicating color information,
When operating as a receiver,
First notification means for notifying the presence or absence of the JPEG receiving function;
Second notification means for notifying the presence or absence of the full-color reception function;
Third notification means for notifying the presence or absence of a reception function at a plurality of resolutions other than the required resolution in full-color reception, respectively;
Has,
When operating as a transmitter,
Fourth notification means for designating JPEG transmission;
Fifth notification means for specifying full-color transmission;
Sixth notification means for notifying the presence or absence of a communication function at a plurality of resolutions other than the required resolution in full-color communication;
A facsimile communication device comprising: In claim 1,
When receiving a transmission specification at a color resolution that the transmitter does not support from the transmitter, thereafter, retransmits an initial identification signal indicating that the transmitter does not have a high-resolution color reception function. Facsimile communication device. In claim 2,
The receiver supports 200 dpi, 400 dpi, and 1200 dpi as the color receiving function, and specifies 200 dpi and 400 dpi as the color receiving function when color transmission at 600 dpi is specified from the partner transmitter. A facsimile communication device for retransmitting the initial identification signal shown. In any one of claims 1 to 3,
All of the color reception functions have means for completely and independently notifying monochrome, 100 dpi, 200 dpi, 300 dpi, 400 dpi, 600 dpi, and 1200 dpi from the receiver to the transmitter. A facsimile communication apparatus characterized by having means for designating from a transmitter to a receiver completely independently of 100 dpi, 200 dpi, 300 dpi, 400 dpi, 600 dpi, and 1200 dpi. In a control method of a facsimile communication device capable of communicating color information,
When operating as a receiver,
A first notification step of notifying the presence or absence of the JPEG receiving function;
A second notification step of notifying the presence or absence of the full-color reception function;
A third notification step of notifying the presence or absence of a reception function at a plurality of resolutions other than the required resolution in full-color reception, respectively;
Has,
When operating as a transmitter,
A fourth notification stage designating JPEG transmission;
A fifth notification step designating full color transmission;
A sixth notification step of notifying the presence or absence of a communication function at a plurality of resolutions other than the required resolution in full-color communication;
A method for controlling a facsimile communication device, comprising:

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