JP2006093785A - Facsimile machine and facsimile communication method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a facsimile machine and a facsimile communication method in which the JPEG file information of color space sYCC is not stored in an internal memory but can be stored surely in a memory connected externally and reused if a card is not connected externally when reception is selected or writing onto the external card is forbidden even if it is connected. <P>SOLUTION: Existence of a receiving function of JPEG encoded information in color space sYCC is notified and transmission of the JPEG encoded information in color space sYCC is specified to a receiver from a transmitter. An external card is connected and writing onto the external card is forbidden. When reception is selected, the external card is connected and when writing onto the external card is not forbidden, existence of a receiving function of JPEG encoded information of color space sYCC is declared. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

The present invention relates to a facsimile machine, and more particularly to a facsimile machine capable of communicating JPEG information.

  A conventional facsimile apparatus capable of communicating color information is ITU-T recommendation T.30. 30, T.M. 4, T.A. 81, T.W. The color communication is determined in the color space Lab. Color document information is read and transmitted using color communication in the color space Lab, and received and received by a receiver to perform color printing (see, for example, Patent Document 1).

Recently, digital cameras have become widespread, and there is an increasing need to transmit information captured by digital cameras as they are using a facsimile protocol. Accordingly, the color space used in the digital camera is color communication in the color space sYCC instead of Lab (see, for example, Patent Document 2). For this reason, a protocol for directly transmitting JPEG encoded information in the color space sYCC is standardized by ITU-T.
JP-A-6-125470 JP 2003-37741 A

  FIG. 8 is a diagram for explaining the operation of a conventional facsimile apparatus.

  In the facsimile apparatus 100 on the transmitter side, it is conceivable to transmit color document information or to transmit digital still camera information stored in a CompactFlash (registered trademark) card 106 via a card slot.

  On the other hand, in the facsimile apparatus 200 on the receiver side, the received color information may be printed by the printer 208, or the digital still camera information may be received by the compact flash (registered trademark) card 206 via the card slot. .

  In general, when transmission of color original information is selected by the facsimile machine 100 on the transmitter side, color printing is performed by the facsimile apparatus 200 on the receiver side, while the card is transmitted by the facsimile apparatus 100 on the transmitter side. When transmission of digital still camera information stored in the CompactFlash card 100 is selected via the slot, the facsimile apparatus 200 on the receiver side receives the digital still camera information via the card slot. The compact flash (registered trademark) card 206 receives the data.

  Therefore, conventionally, considering JPEG full-color transmission in the color space sYCC, basically, the color document information is not transmitted, but is captured by the digital camera 120 and stored in the compact flash (registered trademark) card 106. There are many cases of sending file information.

  In this case, the resolution to be transmitted is often higher than when color document information is transmitted in the color space Lab. Generally, when all of this information is printed by the printer 208, the amount of ink used is compared to that of monochrome information. There are many things that can be wasted. Further, when information transmitted by the digital still camera 120 is transmitted from the facsimile apparatus 100 on the transmitter side, the facsimile apparatus 200 on the receiver side also uploads it to the externally connected card 206, and if necessary, There is a request to save or print, but there is a problem that this request cannot be satisfied.

In the present invention, when reception is selected, if the card is not connected to the outside, or if writing to the external card is prohibited even if the external card is connected, JPEG of the color space sYCC An object of the present invention is to provide a facsimile apparatus and a facsimile communication method in which file information can be reliably stored in an externally connected memory, not stored in an internal memory, and can be reused. is there.

The present invention notifies the presence or absence of the reception function of the JPEG encoded information in the color space sYCC in the previous procedure, designates the transmission of the JPEG encoded information in the color space sYCC from the transmitter to the receiver, Is connected, the writing to the external card is prohibited, and when the reception is selected, the color space sYCC is connected when the external card is connected and the writing to the external card is not prohibited. The JPEG information receiving function is declared.

According to the present invention, when reception is selected, if the card is not connected to the outside or if writing to the external card is prohibited even if the external card is connected, the color space sYCC The JPEG file information of the color space sYCC is not stored in the internal memory, but can be reliably stored in the externally connected memory. There is an effect that it is possible.

  The best mode for carrying out the invention is the following embodiment.

  FIG. 1 is a block diagram showing a facsimile apparatus FS1 that is Embodiment 1 of the present invention.

  The facsimile apparatus FS1 includes an NCU 2, a hybrid circuit 6, a modulator / demodulator 8, a calling circuit 10, an adding circuit 12, a reading circuit 14, a recording circuit 16, a memory circuit 18, an operation unit 20, and a CPU 22. And a ROM 24 and a card interface 28.

  In order to use the telephone network for data communication or the like, the NCU (network control unit) 2 is connected to the terminal of the line, performs connection control of the telephone exchange network, switches to the data communication path, loops, etc. Holding. The NCU 2 connects the telephone line 2a to the telephone side (CML off) and connects the telephone line 2a to the facsimile apparatus side (CML on) under the control of the bus 26. In the normal state, the telephone line 2a is connected to the telephone 4 side.

  The hybrid circuit 6 separates the transmission system signal and the reception system signal, sends the transmission signal from the adder circuit 12 to the telephone line 2a via the NCU 2, receives the signal from the other party via the NCU 2, and receives the signal line. The data is sent to the modem 8 via 6a.

  The modem 8 is an ITU-T recommendation V.30. 8, V. 21, V27ter, V.21. 29, V.R. 17, V.R. 34 is a modulator / demodulator that performs modulation and demodulation based on 34, and each transmission mode is designated by the control of the bus 26. The modem 8 receives the transmission signal from the bus 26, outputs the modulated data to the signal line 8a, receives the reception signal output to the signal line 6a, and outputs the demodulated data to the bus 26.

  The calling circuit 10 inputs telephone number information in response to a signal from the bus 26, and outputs a DTMF selection signal to the signal line 10a.

  The adder circuit 12 inputs the information on the signal line 8a and the information on the signal line 10a, and outputs the addition result to the signal line 12a.

  The reading circuit 14 can perform color reading and outputs read data to the bus 26.

  The recording circuit 16 can perform color recording, and sequentially records information output to the bus 26 for each line.

  The memory circuit 18 stores work information (RAM), raw information of read data, or encoded information, and stores received information, decoded information, or the like via the bus 26. To do.

  The operation unit 20 includes a one-touch dial, an abbreviated dial, a numeric keypad, a * key, a # key, a start key, a stop key, a set key, a key for selecting file information transmission, a color information transmission selection key, and an externally connected CF card. There are a write prohibition selection key and other function keys, and the pressed key information is output to the bus 26.

  The operation unit 20 is provided with a display unit for inputting and displaying information output to the bus 26.

  A CPU (central processing unit) 22 controls the entire facsimile and executes facsimile transmission control means. The control program is stored in the ROM 24.

  A card 30 is set in the card interface 28. The card 30 is, for example, a compact flash (registered trademark) card in which information taken by a digital camera is stored.

  FIG. 2 is a diagram showing bit information related to color and a new ITU-T recommendation T.264 according to the first embodiment. It is a figure which shows the information added to 30. FIG.

  The 68 bits of the DIS / DTC signal FIF notifies the presence / absence of the reception function in the JPEG encoding in the color space Lab, and the transmission of the JPEG encoding in the color space Lab is performed by the 68 bits of the DCS signal FIF. specify.

  Further, the presence / absence of the full color reception function in which the color space is Lab is notified by 69 bits of the FIF of the DIS / DTC signal, and full color transmission in which the color space is Lab is specified by the 69 bits of the FIF of the DCS signal.

  The presence / absence of the JPEG encoding reception function in the color space sYCC is notified by the X bit of the FIF of the DIS / DTC signal, and the JPEG encoding transmission in the color space sYCC is specified by the X bit of the FIF of the DCS signal.

  The ROM 24, in the previous procedure, designates notification means for notifying whether or not there is a function for receiving JPEG encoded information in the color space sYCC, and designation for specifying transmission of JPEG encoded information in the color space sYCC from the transmitter to the receiver. Means, an external card connecting means for connecting an external card, a write prohibiting means for prohibiting writing to the external card, and the external card is connected when reception is selected, and the external card A control program for realizing declaration means for declaring the presence of the reception function of JPEG information in the color space sYCC when writing to the data space is not prohibited is stored.

  Further, the ROM 24 selects the color space sYCC when a card is not connected to the outside when reception is selected, or when writing to the external card is prohibited even if the external card is connected. A control program for declaring that no JPEG information reception function is available is stored.

  Next, the operation of the first embodiment will be described.

  3, 4, and 5 are flowcharts illustrating the operation of the first embodiment.

  In S2, the memory 18 is initialized via the bus 26. In S4, the display unit of the operation unit is cleared via the bus 26. In S6, the CML of the NCU 2 is turned off via the bus 26.

  In S8, it is determined whether or not facsimile reception is selected. If facsimile reception is selected, the process proceeds to S12. If facsimile reception is not selected, the process proceeds to S10 and other processes are performed.

  In S12, the CML of the NCU 2 is turned on via the bus 26. In S14, it is determined whether or not an externally connected CF (Compact Flash (registered trademark)) card is connected. If an externally connected CF card is connected, the process proceeds to S16, and the externally connected CF card is connected. If not, the process proceeds to S28.

  In S16, information on the operation unit is input to determine whether or not writing to the externally connected CF card is prohibited. If writing to the externally connected CF card is prohibited, the process proceeds to S28. If writing to the externally connected CF card is not prohibited, the process proceeds to S18.

  Receive JPEG information in color space sYCC when reception is selected and no external card is connected, or writing to the external card is prohibited even if the external card is connected Since no function is declared, the JPEG file information of the color space sYCC can be reliably stored not in the internal memory but in the externally connected memory, and can be reused.

  Here, in the above-described embodiment, when writing to the external connection memory is prohibited, the point is that the JPEG reception function of the color space sYCC is not used. it can. Then, the JPEG information of the color space sYCC is received in the memory of the main body, and there is no problem that the memory overflows.

  In S18, the externally connected CF card determines whether or not there is a free area of a predetermined capacity or more. If there is a free area of a predetermined capacity or more in the externally connected CF card, the process proceeds to S20, and the externally connected CF card is reached. If there is no empty area exceeding the predetermined capacity, the process proceeds to S28.

  In S20, the pre-procedure is executed. Here, the 68, 69, and X bits of the FIF of the DIS signal are set to 1.

  In S22, it is determined whether or not the X bit of the FIF of the DCS signal is 1. If the X bit of the FIF of the DCS signal is 1, the process proceeds to S24, and the X bit of the FIF of the DCS signal is not 1. The process proceeds to S30.

  In S24, the JPEG encoded file information of the color space sYCC is stored in the reception / CF card, the post-procedure is executed in S26, and the pre-procedure is executed in S28. Here, 68 and 69 bits of FIF of the DIS signal are set to 1, and X bit is set to 0.

  In S30, it is determined whether the 68 and 69 bits of the FIF of the DCS signal are 1, and if both the 68 and 69 bits of the FIF of the DCS signal are 1, the process proceeds to S34 and the FIF 68 of the DCS signal is reached. If at least one of the 69 bits is 0, the process proceeds to S32.

  In S32, monochrome information is received and printed. In S34, JPEG-encoded full color information of the color space Lab is received and printed. In S36, a post-procedure is executed.

  Embodiment 2 has a means for selecting to print digital camera information in Embodiment 1, and prohibits writing received information to an external card when printing of digital still camera information is selected. This is an example.

  6 and 7 are flowcharts showing the operation of the second embodiment, and are flowchart charts showing only portions different from the flowcharts shown in FIGS.

  Here, digital still camera information print jobs (S44 to S58, S60, S62) are added to the received jobs (S8 to S36) after the determination in step S8 shown in FIGS. 3 to 5, and these jobs are multitasking. Executed. That is, the processes in steps S8 to S36 and the processes in steps S44 to S58, S60, and S62 are performed in parallel.

  That is, while the digital still camera information print job (S44 to S62) is in operation, the reception job (S40, S42) is activated and reception is started in multitasking. In this case, since the image data stored in the CF card is being printed, it is not desired to store the received image in the CF card, and storage of the received image in the CF card is prohibited in S60.

  In FIG. 6, S40 represents a received JOB. In S42, the determination in S8 and the operations in S12 to S36 are executed. In S44, print job of digital still camera information is executed. In S46, information on the operation unit is input, and it is determined whether or not printing of externally connected CF card information is selected. Externally connected CF card information. If the print is selected, the process proceeds to S48. If the print of the externally connected CF card information is not selected, the process proceeds to S58, and the process returns to S6. That is, the reception JOB (S40, S42) and the digital still camera information print JOB (S44 to S62) operate in multitasking.

  In S48, it is determined whether or not an external CF (Compact Flash (registered trademark)) card is connected. If an external CF card is connected, the process proceeds to S50, and an external CF card must be connected. If so, the process proceeds to S58.

  In S50, it is determined whether or not the externally connected CF card is accessed, such as reception of the color space sYCC. If there is an access to the externally connected CF card, the process proceeds to S58, and the externally connected CF card is connected. If there is no access to the CF card, the process proceeds to S60.

  S64 represents S6, and multitask processing is executed in S66.

  In the above embodiment, when printing of the digital still camera information is selected, the printing operation is selected after the card photographed with the digital camera is inserted into the external connection memory, and in this case, the received information is written to the external card. The feature is that the JPEG reception function of the color space sYCC is eliminated at the time of reception. With this feature, the JPEG file information of the color space sYCC can be reliably stored in an externally connected memory without being stored in the internal memory, and can be reused. Then, the JPEG information of the color space sYCC is received in the main body memory, and the memory does not overflow.

  That is, according to the above embodiment, when reception is selected, if the card is not connected to the outside, or writing to the external card is prohibited even if the external card is connected, Since it declares that there is no function for receiving the JPEG information of the color space sYCC, the JPEG file information of the color space sYCC can be reliably stored in the externally connected memory instead of being stored in the internal memory. Can be reused.

  The facsimile apparatus according to the above embodiment may be applied to a facsimile communication method.

  That is, in the above embodiment, in the facsimile communication method capable of communicating JPEG information in the color space sYCC, a notification step for notifying whether or not there is a function for receiving JPEG encoded information in the color space sYCC, and a color space sYCC. A step of designating transmission of JPEG encoded information from the transmitter to the receiver, an external card connection step of connecting an external card, a write prohibiting step of prohibiting writing to the external card, and reception And a declaration step for declaring that there is a function for receiving JPEG information in the color space sYCC when the external card is connected and writing to the external card is not prohibited. It is an example of a communication method.

  In this case, when reception is selected, the color space sYCC when the external card is not connected or when writing to the external card is prohibited even if the external card is connected. It may be declared that there is no function for receiving JPEG information.

Further, there may be a selection step for selecting printing of the digital still camera information, and when the printing of the digital still camera information is selected, writing of the reception information to the external card may be prohibited.

1 is a block diagram of a facsimile machine FS1 that is Embodiment 1 of the present invention. FIG. In the first embodiment, color-related bit information, and a new ITU-T recommendation T.264. It is a figure which shows the information added to 30. FIG. 3 is a flowchart showing the operation of the first embodiment. 3 is a flowchart showing the operation of the first embodiment. 3 is a flowchart showing the operation of the first embodiment. 6 is a flowchart illustrating an operation of the second embodiment, and is a flowchart illustrating only a portion different from the flowcharts illustrated in FIGS. 6 is a flowchart illustrating an operation of the second embodiment, and is a flowchart illustrating only a portion different from the flowcharts illustrated in FIGS. It is operation | movement explanatory drawing of the conventional facsimile apparatus.

Explanation of symbols

FS1 ... facsimile machine,
4 ... Telephone,
8: Modulator / demodulator,
10: Calling circuit,
12 ... Adder circuit,
14: reading circuit,
16 ... Recording circuit,
18 ... Memory,
20 ... operation part,
22 ... CPU,
24 ... ROM,
28: Card interface.

Claims (6)

In a facsimile machine capable of communicating JPEG information in the color space sYCC,
A notification means for notifying whether or not there is a reception function of JPEG encoded information in the color space sYCC in the previous procedure;
Designation means for designating transmission of JPEG encoded information in the color space sYCC from the transmitter to the receiver;
An external card connection means for connecting an external card;
Write prohibiting means for prohibiting writing to the external card;
Declaring means for declaring that the receiving function of the JPEG information of the color space sYCC is present when the external card is connected and writing to the external card is not prohibited when reception is selected;
A facsimile apparatus comprising: In claim 1,
When reception is selected, when the external card is not connected, or when writing to the external card is prohibited even if the external card is connected, the JPEG information of the color space sYCC A facsimile machine characterized by declaring no reception function. In claim 1 or claim 2,
A facsimile apparatus comprising selection means for selecting printing of digital still camera information, and prohibiting writing received information to the external card when printing of the digital still camera information is selected. In a facsimile communication method capable of communicating JPEG information of the color space sYCC,
A notifying step for notifying whether or not there is a function for receiving JPEG encoded information in the color space sYCC in the previous procedure;
A designation step for designating transmission of JPEG encoded information in the color space sYCC from the transmitter to the receiver;
An external card connection step for connecting an external card;
A write prohibiting step for prohibiting writing to the external card;
A declaring step of declaring the presence of a function for receiving JPEG information in the color space sYCC when the external card is connected and writing to the external card is not prohibited when reception is selected;
A facsimile communication method characterized by comprising: In claim 4,
When reception is selected, when the external card is not connected, or when writing to the external card is prohibited even if the external card is connected, the JPEG information of the color space sYCC A facsimile communication method characterized by declaring no reception function. In claim 4 or claim 5,
A facsimile communication method comprising a selection step of selecting to print digital still camera information, and prohibiting writing received information to the external card when printing of the digital still camera information is selected. .

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