JP2004312499A - Communication equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To store a prescribed area of transmitted or received color image data together with information about communication with a small amount of data. <P>SOLUTION: This communication equipment is provided with a facsimile transmitting/receiving means for transmitting and receiving image data by facsimile communication, a data converting means for converting a prescribed area of color image data into monochrome image data when image data transmitted/received by facsimile communication is the color image data, a storing means for storing information about communication of the image data as well as the converted monochrome image data in a memory, and an outputting means for outputting the information about the communication and the monochrome image data stored in the memory. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a communication device, and more particularly to a communication device that stores image data of a transmitted / received document together with communication information.
[0002]
[Prior art]
There is a facsimile apparatus capable of facsimile transmitting monochrome image data of a document read by a document reading unit, reducing the first page of the image data, encoding the reduced one page, and storing it together with communication information. The stored monochrome image data is decompressed by a predetermined operation from the operation unit and is recorded on a recording sheet together with communication-related information, so that the user can easily compare the transmitted document-related information with the first page of the transmitted document. (See, for example, Patent Document 1).
[0003]
[Patent Document 1]
JP-A-11-69032 (pages 2-4, FIG. 5)
[0004]
[Problems to be solved by the invention]
However, when attempting to save color image data together with communication information in the same manner as described above, since the amount of color image data is larger than that of monochrome image data, a large amount of data is transmitted unless a large-capacity memory is provided. There is a problem that color image data cannot be stored.
[0005]
The present invention has been made in view of the above problems, and an object of the present invention is to store a predetermined area of transmitted or received color image data with a small amount of data together with information regarding communication.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, a communication apparatus according to claim 1 includes a facsimile transmission / reception unit that transmits / receives image data by facsimile communication; Data conversion means for converting a predetermined area of the image data into monochrome image data, storage means for storing information on communication of the image data together with the converted monochrome image data in a memory, information on the communication stored in the memory, Output means for outputting the monochrome image data.
[0007]
The communication device according to claim 2 is an e-mail transmitting / receiving means for transmitting / receiving image data by e-mail, and, when the image data transmitted / received by e-mail is color image data, converts a predetermined area of the color image data to monochrome A data conversion unit for converting the image data into data, a storage unit for storing information regarding communication of the image data together with the converted monochrome image data in a memory, and outputting the information regarding communication and the monochrome image data stored in the memory And output means.
[0008]
According to a third aspect of the present invention, in the communication device according to the second aspect, the data conversion means is provided when the color image data composed of a plurality of files is attached to the e-mail transmitted / received by the e-mail transmission / reception means. As the predetermined area, only the leading part of each of the color image data composed of the plurality of files or the leading part of the color image data attached as the leading file is converted into monochrome image data.
[0009]
A communication device according to a fourth aspect of the present invention is the communication device according to any one of the first to third aspects, further comprising an encoding unit that encodes the monochrome image data converted by the data conversion unit using a plurality of encoding methods. The encoding unit selects and encodes an encoding method in which the data amount of the monochrome image data is equal to or less than a threshold value when encoding the monochrome image data, and the storage unit encodes the monochrome image data by the encoding unit. It is characterized in that information on communication of the image data is stored in a memory together with the converted monochrome image data.
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, a case where the communication apparatus according to the embodiment of the present invention is applied to a multifunction peripheral having a copy function, a facsimile function, an Internet facsimile function, and the like will be described with reference to the drawings. As shown in FIG. 1, the communication device 1 includes a control unit (MPU: Microprocessing Unit) 2, a ROM (Read Only Memory) 3, a RAM (Random Access Memory) 4, an operation unit 5, a display unit 6, a codec 7, and a document. A reading unit 8, a determination circuit 9, a conversion circuit 10, a memory management circuit 11, an image memory 12, a communication unit 13, a recording unit 14, and a LAN I / F (Local Area Network Interface) 15; 15 are communicably connected by a bus 16.
[0011]
The control unit 2 controls each unit constituting the communication device 1 according to a predetermined program. The ROM 3 stores various programs for controlling the operation of each unit of the communication device 1 by the control unit 2. The program stored in the ROM 3 is, for example, a data conversion processing program for decoding only a predetermined area of the transmitted and received color image data and converting it to monochrome image data. Is an encoding processing program for selecting an encoding method whose data amount is equal to or less than a threshold value and encoding monochrome image data. Here, the predetermined area is the first page of the transmitted and received color image data.
[0012]
The RAM 4 stores in advance registered facsimile numbers, mail addresses, various setting information, and the like. Further, the RAM 4 is provided with a communication management table T for storing information relating to communication of image data transmitted and received by the facsimile function or the Internet facsimile function.
[0013]
FIG. 2 shows communication management tables T1 and T2 in which information related to the communication when image data is transmitted and received by the facsimile function is stored. As shown, the communication management table T1 in which information on communication of transmitted image data is stored includes a “number” field, a “destination name” field, a “mode” field, a “start date and time” field, a “time” field, It consists of a “number” field, a “result” field, a “file number” field, a “method” field, and a “remarks” field. The “number” field stores numbers assigned in the order of communication time. The “destination name” field stores the name of the destination that transmitted the image data and the facsimile number of the destination device. The “mode” field stores information on the image quality of the transmitted image data. The “start date and time” field stores the date and time when transmission of the image data was started. The “time” field stores the time required from the start of transmission of image data to the destination apparatus until the end. The “number” field stores the number of pages of the transmitted image data. The “result” field stores a communication result. The “file number” field stores a number assigned when the first page of the transmitted color image data is converted into monochrome image data, and further encoded and stored. The “method” field stores an encoding method that indicates which encoding method the stored monochrome image data has been encoded. Other information is stored in the “remarks” field. When the image data is received by the facsimile function, the information on the communication is similarly stored in the communication management table T2.
[0014]
FIG. 3 shows communication management tables T3 and T4 in which, when image data is transmitted and received by the Internet facsimile function, information relating to the communication of the image data is stored. Here, the information related to the communication of the image data is information related to the communication of the e-mail to which the image data is attached. The communication management table T3 in which information on the communication of the transmitted e-mail is stored includes a “number” field, a “destination” field, a “date” field, a “subject” field, a “result” field, a “file” A number field and a method field. The “number” field stores numbers assigned in the order of communication time. The “destination” field stores the name of the other party who sent the e-mail and the mail address of the other party. The “date” field stores the date when the e-mail was sent. The "Subject" field stores the subject of the e-mail. The “result” field stores a communication result. In the “file number” field, only the first part of the color image data attached to the transmitted e-mail, specifically, only the first page of the color image data is converted to monochrome image data, and further encoded. The number assigned when it is stored is stored. The “method” field stores an encoding method that indicates which encoding method the stored monochrome image data has been encoded.
[0015]
When an e-mail attached with image data is received by the Internet facsimile function, the mail address of the sender who transmitted the e-mail is stored in the communication management table T4 instead of the destination, and the e-mail is stored in other fields. Is stored in the same manner as in the case of transmitting the e-mail.
[0016]
The operation unit 5 includes ten keys for inputting a facsimile number, the number of recording copies, etc., a copy execution command for a document placed on the document reading unit 8, a start key for instructing facsimile transmission, and a cursor for performing various settings. Operation keys including keys and the like are provided. When color image data consisting of a plurality of files is attached to an e-mail sent and received by the Internet facsimile function, only the first page of the color image data attached as the first file is stored or attached. The setting as to whether only the first page of all the color image data is stored is made from the operation unit 5.
[0017]
The display unit 6 includes a liquid crystal display device for displaying information on the state of the communication device 1, various operation instruction input screens, an error warning, a setting state, an operation state, and the like, and an LED lamp. The display unit 6 displays a monochrome image of the first page of the image data transmitted and received by the facsimile function or the Internet facsimile function together with information regarding the communication.
[0018]
The codec 7 includes a JPEG codec 7a, a scanner codec 7b, and a print codec 7c, as shown in FIG. 4, and encodes and decodes image data in accordance with a predetermined protocol. It is. The JPEG codec 7a encodes the multi-valued image data stored in the multi-valued memory 12b and decodes the image data stored in the encoding memory 12a according to the JPEG (Joint Photographic Experts Group) method. . The scanner codec 7b converts the binary image data stored in the binary memory 12c into MH (Modified Huffman), MR (Modified Read), MMR (Modified Modified Read), JBIG (Joint Bi-level Image), and the like. Encode. The print codec 7c uses the MH, MR, MMR, or JBIG method to record the image data stored in the encoding memory 12a on recording paper by the recording unit 14 or to display the image data on a liquid crystal display device provided in the display unit 6. And so on.
[0019]
The document reading unit 8 includes an automatic document feeding unit (ADF: Automatic Document Feeder) and a flat bed reading unit (FBS: Flat Bed Scanner), and reads a document image by a color CCD (Charge Coupled Device). . The original reading section 8 performs preliminary scanning of the original in accordance with a control command from the control section 2, and image information of the original obtained by the preliminary scanning is sent to the discriminating circuit 9. Then, the determination circuit 9 determines whether the original placed on the original reading section 8 is a color original or a monochrome original based on the image information.
[0020]
The conversion circuit 10 includes a first conversion circuit 10a and a second conversion circuit 10b, as shown in FIGS. The first conversion circuit 10a performs input corrections such as a shading correction, a line correction, and a shift correction on image data of the RGB color system read by the document reading unit 8, and performs input correction of the L * a * b * color system. Input color conversion into image data is performed, and processing such as enlargement / reduction and ground color correction is performed. The second conversion circuit 10b converts the image data converted into the L * a * b * color system by the first conversion circuit 10a or the image data decoded by the JPEG codec 7a into CMYK (C: cyan, M: magenta). , Y: yellow, K: black), and performs a process of binarizing by performing an error diffusion process or the like. When converting the color image data into monochrome image data, the second conversion circuit 10b performs image processing only on the L * component of the L * a * b * color system image data, A process for generating an image signal of only the component is performed. The color system in which the image data of the RGB color system is converted is not limited to the L * a * b * color system, but may be, for example, a Ycc color system. When converting to data, the second conversion circuit 10b performs image processing only on the Y component.
[0021]
The memory management circuit 11 includes a multi-level memory management circuit 11a and a binary memory management circuit 11b. The multi-level memory management circuit 11a stores the image data processed by the first conversion circuit 10a and the image data decoded by the JPEG codec 7a in the multi-level memory 12b, and stores the image data stored in the multi-level memory 12b. Is output to the JPEG codec 7a or the second conversion circuit 10b. When converting color image data into monochrome image data, the multivalued memory management circuit 11a stores the L * a * b * color system image stored in the multivalued memory 12b in accordance with a control command from the control unit 2. Only the L * component of the data is sent to the second conversion circuit 10b. The binary memory management circuit 11b stores the image data processed by the second conversion circuit 10b or the image data decoded by the print codec 7c in the binary memory 12c, and stores the image data stored in the binary memory 12c. Is output to the scanner codec 7b or the recording unit 14.
[0022]
The image memory 12 includes an encoding memory 12a, a multi-level memory 12b, and a binary memory 12c. The encoding memory 12a temporarily stores image data transmitted and received by facsimile communication, image data transmitted and received by e-mail, and the like. The multi-valued memory 12b temporarily stores multi-valued image data such as image data converted into the L * a * b * color system by the first conversion circuit 10a. The binary memory 12c temporarily stores image data binarized by the second conversion circuit 10b and image data decoded by the print codec 7c.
[0023]
The communication unit 13 includes a modem 17 and an NCU (Network Control Unit) 18. The modem 17 is based on, for example, Recommendation V.T. It modulates and demodulates transmission / reception data according to the 34 standard or the like. The NCU 18 is a line network control device that controls a telephone line to make or cut a call, and is connected to a PSTN (Public Switched Telephone Network) 19.
[0024]
The recording unit 14 is, for example, of an electrophotographic type, and records image data read by the document reading unit 8, image data received by facsimile, image data received from the client PC 22, and the like on a recording sheet. Further, the recording unit 14 records the information on the communication stored in the communication management table T and the first page of the transmitted and received color image data as a monochrome image on a recording sheet.
[0025]
The LAN I / F 15 has an interface with a LAN (Local Area Network) 21, and can communicate with a client PC 22, a mail server 23, and a router 24 connected to the LAN 21 similarly to the communication device 1.
[0026]
According to the communication apparatus 1 having the above-described configuration as a multifunction peripheral, image data read by the document reading unit 8 can be recorded on a recording sheet by a copy function, and another G3 facsimile apparatus (not shown) can be recorded by a facsimile function. The electronic facsimile apparatus can transmit and receive an electronic mail with image data of a document to and from another Internet facsimile apparatus or the like (not shown) by the Internet facsimile function.
[0027]
Further, only the first page of the color image data transmitted and received by the facsimile function or the Internet facsimile function can be stored as monochrome image data. The stored monochrome image data can be displayed on a liquid crystal display device provided in the display unit 6 together with information on the communication, or can be recorded on recording paper by the recording unit 14.
[0028]
Hereinafter, when color image data is transmitted / received by facsimile communication, only the first page of the image data is converted into a monochrome image, further encoded and stored together with communication-related information. This will be described based on the flowchart shown in FIG. The operation of each unit of the communication device 1 shown in this flowchart is performed based on a control command from the control unit 2.
[0029]
When the control unit 2 determines that the transmission and reception of the image data has been completed (S1: YES), the control unit 2 stores information on the communication of the image data such as the destination name, the mode, and the start date and time in the communication management table T shown in FIG. (S2). Then, only the first page of the transmitted and received color image data is left in the encoding memory 12a, and the second and subsequent pages are deleted (S3). Subsequently, the first page of the color image data is decoded and converted to monochrome image data (S4). Specifically, as shown in FIG. 4, after the first page of the color image data stored in the encoding memory 12a is decoded by the JPEG codec 7a and temporarily stored in the multi-valued memory 12a, The multivalued memory management circuit 11a reads out only the L * component of the image data of the L * a * b * color system and sends it to the second conversion circuit 10b. A process for generating the data is performed, and the data is temporarily stored in the binary memory 12c.
[0030]
Subsequently, the monochrome image data stored in the binary memory 12c is encoded by the scanner codec 7b by a predetermined encoding method (S5). The predetermined coding method is any one of the MH, MR, MMR, and JBIG methods. Then, the control unit 2 determines whether or not the data amount of the monochrome image data encoded by the scanner codec 7b is equal to or less than a preset threshold value (S6), and determines that the data amount is equal to or less than the threshold value. In this case (S6: YES), the monochrome image data encoded in S5 is assigned a file number and stored in the encoding memory 12a (S7). Then, the file number and the encoding method in which the stored monochrome image data is encoded are stored in the “file number” and “method” columns of the communication management table T, respectively (S8).
[0031]
On the other hand, when the control unit 2 determines that the data amount of the monochrome image data encoded in S5 is not less than the threshold value (S6: NO), the scanner codec 7b stores the monochrome image data stored in the binary memory 12c. The data is encoded by another encoding method (S9). Then, the control unit 2 determines whether or not the data amount of the monochrome image data encoded in S9 is equal to or less than a threshold value (S10). If it is determined that the data amount is equal to or less than the threshold value (S10: YES), a file number is assigned to the monochrome image data encoded in S9 and stored in the encoding memory 12a (S11). Then, as in S8, the file number and the encoding method in which the stored monochrome image data is encoded are stored in the “file number” and “method” columns of the communication management table T, respectively (S12).
[0032]
When the control unit 2 determines that the data amount of the monochrome image data encoded in S9 is not equal to or smaller than the threshold value (S10: NO), the control unit 2 determines whether there is an untested encoding method (S10). S13). If there is an untried encoding method (S13: YES), the scanner codec 7b encodes the monochrome image data using the untried encoding method (S14), and the control unit 2 encodes using the encoding method. It is determined whether the data amount of the obtained monochrome image data is equal to or smaller than a threshold value (S10). When it is determined that the data amount is equal to or smaller than the threshold value, the processes of S11 and S12 are performed on the monochrome image data encoded by the encoding method.
[0033]
When there is no untried coding method (S13: NO), specifically, when the data amount does not fall below the threshold value even if coding is performed by any of the MH, MR, MMR, and JBIG coding methods Then, the image data is stored in the encoding memory 12a with a file number attached to the monochrome image data encoded by the encoding method that minimizes the amount of data when encoded (S15). Then, the file number and the encoding method in which the stored monochrome image data is encoded are stored in the “file number” column and the “method” column of the communication management table T, respectively (S16).
[0034]
As described above, only the first page of the color image data transmitted and received by facsimile communication is decoded, converted to monochrome image data, and the amount of data becomes smaller than a predetermined value when further encoded. It is encoded by such an encoding method and stored together with information on communication. Note that the encoding method performed in S5, S9, and S14 can be set in advance from the operation unit 5.
[0035]
Hereinafter, when color image data is transmitted / received by e-mail, a processing operation for storing only the leading part of the color image data attached to the transmitted / received e-mail as monochrome image data together with communication information is described with reference to FIGS. This will be described based on the flowchart shown in FIG. The operation of each unit of the communication device 1 shown in this flowchart is performed based on a control command from the control unit 2.
[0036]
When the control unit 2 determines that the transmission and reception of the electronic mail has been completed (S18: YES), the control unit 2 stores information on the communication of the transmitted and received electronic mail in the communication management table T illustrated in FIG. 3 (S19). Then, it is determined whether or not the transmitted / received e-mail includes color image data composed of a plurality of files (S20). If the color image data composed of a plurality of files is not attached, that is, if there is only one attached file (S20: NO), the first page is determined from the tag information of the attached color image data 27 as shown in FIG. Then, only the first page 28 is left in the encoding memory 12a as a head portion, and the second and subsequent pages are deleted (S21). Subsequently, the first page 28 of the color image data is decoded and converted to monochrome image data in the same manner as in S4 (S22). Then, the monochrome image data is temporarily stored in the binary memory 12c.
[0037]
Subsequently, the image data stored in the binary memory 12c is encoded by the scanner codec 7b using a predetermined encoding method (S23). The predetermined coding method is any one of the MH, MR, MMR, and JBIG methods. Then, the control unit 2 determines whether or not the data amount of the monochrome image data encoded in S23 by the scanner codec 7b is equal to or less than a preset threshold value (S24). (S24: YES), a file number is assigned to the monochrome image data encoded in S23, and the monochrome image data is stored in the encoding memory 12a (S25). Then, the file number and the encoding method in which the stored monochrome image data is encoded are stored in the “file number” and “method” columns of the communication management table T, respectively (S26).
[0038]
On the other hand, when the control unit 2 determines that the data amount of the monochrome image data encoded in S23 is not smaller than the threshold value (S24: NO), the scanner codec 7b stores the monochrome image data stored in the binary memory 12c. The data is encoded by another encoding method (S28). Then, the control unit 2 determines whether or not the data amount of the monochrome image data encoded in S28 is equal to or less than a threshold value (S29). If it is determined that the data amount is equal to or less than the threshold value (S29: YES), a file number is assigned to the monochrome image data encoded in S28, and the monochrome image data is stored in the encoding memory 12a (S30). Then, similarly to S26, the file number and the encoding method in which the stored monochrome image data is encoded are stored in the "file number" and "method" columns of the communication management table T, respectively (S31).
[0039]
When the control unit 2 determines that the data amount of the monochrome image data encoded in S28 is not equal to or smaller than the threshold value (S29: NO), the control unit 2 determines whether there is an untried encoding method (S29). S32). When there is an untried encoding method (S32: YES), the scanner codec 7b encodes monochrome image data using the untried encoding method (S33), and the control unit 2 encodes the monochrome image data using the encoding method. It is determined whether or not the data amount of the monochrome image data is equal to or less than the threshold (S29). When it is determined that the data amount is equal to or smaller than the threshold value (S29: YES), the processes in S30 and S31 are performed on the monochrome image data encoded in S33.
[0040]
On the other hand, when there is no untried coding method (S32: NO), the data amount is equal to or less than the threshold value even when coding is performed using any of the MH, MR, MMR, and JBIG coding methods. If not, monochrome image data encoded by the encoding method that minimizes the data amount when encoded among these encoding methods is assigned a file number and stored in the encoding memory 12a (S34). Then, the file number and the encoding method in which the stored monochrome image data is encoded are stored in the “file number” and “method” columns of the communication management table T, respectively (S35).
[0041]
In S20, when the control unit 2 determines that the color image data 30 to 32 composed of a plurality of files are attached to the transmitted / received e-mail as shown in FIG. It is determined from the unit 5 whether or not it is set to store only the leading portion of the color image data 30 attached as the leading file in advance (S37). If the setting is such that only the head of the color image data 30 attached as the first file is stored (S37: YES), only the first page of the color image data 30 attached as the first file is stored. Is decoded, converted into monochrome image data, and is encoded and stored by an encoding method in which the data amount is equal to or less than a threshold value, and the processing after S21 is performed.
[0042]
If the setting is not made so as to store only the head part of the color image data 30 attached as the head file (S37: NO), the first pages 30a and 31a of each of the color image data composed of a plurality of files are set. , And 32a, and erases the second and subsequent pages (S38). Then, the first pages 30a, 31a and 32a of the color image data are respectively decoded and converted into monochrome image data in the same manner as in S4 (S39). Then, the processing operations from S23 on are performed on each of the three image data 30a, 31a, and 32a converted into monochrome image data. In this case, since a plurality of image data are stored, a plurality of file numbers and a method are stored in the “file number” column and the “method” column of the communication management table T shown in FIG.
[0043]
As described above, in the color image data transmitted and received by e-mail, only the first part of the color image data, specifically, only the first page of the attached color image data is decoded, and the monochrome image data is decoded. , And when the data is further coded, the data is coded by a coding method in which the data amount is equal to or less than a predetermined value, and is stored together with information on communication. When color image data composed of a plurality of files is attached, the first page of each attached color image data can be stored in the same manner. Note that the encoding method performed in S23, S28, and S33 can be set in advance from the operation unit 5.
[0044]
In addition, information on communication stored in the communication management table T and monochrome image data of the first page stored in the encoding memory 12a are transmitted by the user through a predetermined operation from the operation unit 5 as shown in FIG. It can be recorded on recording paper or displayed on a liquid crystal display device provided in the display unit 6. That is, when the number of the communication management table T is designated by the predetermined operation, the monochrome image data having the file number described in the same record as the number is transmitted from the encoding memory 12a to the print codec 7c. After being decrypted, it is temporarily stored in a binary memory. Then, the information is transmitted to the recording unit 14 together with the information on the communication described in the same record of the communication management table T, and is recorded on a recording sheet.
[0045]
【The invention's effect】
According to the communication device of the first aspect, when the image data transmitted and received by facsimile communication is color image data, only a predetermined area of the color image data is converted into monochrome image data and stored together with communication-related information. be able to. Therefore, it is possible to store, as monochrome image data, a predetermined area of image data of a color document transmitted and received without providing a large-capacity memory. Further, the stored monochrome image data can be output together with the information regarding the communication, so that the user can easily confirm the communication content by viewing the output monochrome image and the information regarding the communication.
[0046]
According to the communication device of the second aspect, when the image data transmitted and received by e-mail is color image data, a predetermined area of the color image data is converted into monochrome image data and stored together with information regarding communication. Can be. Therefore, a predetermined area of the color image data attached to the transmitted / received e-mail can be stored as monochrome image data without having a large-capacity memory. In addition, the stored monochrome image data can be output together with the information regarding the communication, so that the user can easily confirm the communication contents by viewing the output monochrome image and the information regarding the communication.
[0047]
According to the communication device of the third aspect, when color image data composed of a plurality of files is attached to the transmitted / received e-mail, the head of all the attached color image data is stored as monochrome image data. Alternatively, only the leading portion of the color image data attached as the leading file can be stored as monochrome image data. Therefore, of the color image data transmitted and received by e-mail, only a necessary area can be efficiently saved.
[0048]
According to the communication device of the fourth aspect, after the transmitted and received color image data is converted into monochrome image data, the encoding method is such that when the monochrome image data is encoded, the data amount is equal to or less than a threshold value. Since the image data is encoded and stored, it is possible to store the transmitted and received image data with a smaller amount of data together with communication information.
[Brief description of the drawings]
FIG. 1 is a block diagram illustrating a configuration of a communication device according to an embodiment of the present invention.
FIG. 2 is a diagram illustrating a communication management table for storing information related to communication of image data transmitted and received by a facsimile function;
FIG. 3 is a diagram showing a communication management table for storing information related to communication of electronic mail transmitted and received by the Internet facsimile function.
FIG. 4 is a diagram showing a flow of data transfer of image processing performed on transmitted and received color image data.
FIG. 5 is a flowchart illustrating a processing operation performed when color image data is transmitted and received by facsimile communication.
FIG. 6 is a flowchart showing a processing operation performed when color image data is transmitted and received by facsimile communication.
FIG. 7 is a flowchart illustrating a processing operation performed when color image data is transmitted and received by e-mail.
FIG. 8 is a flowchart showing a processing operation performed when color image data is transmitted and received by e-mail.
FIG. 9 is a schematic diagram for explaining a leading portion of color image data attached to transmitted / received e-mail.
FIG. 10 is a schematic diagram for explaining a head portion of image data stored in a communication device when color image data composed of a plurality of files is attached to transmitted / received e-mail.
FIG. 11 is a diagram illustrating a monochrome image of the first page of image data transmitted by facsimile communication and a recording sheet on which information regarding the communication is recorded.
[Explanation of symbols]
1 Communication device
2 control unit
3 ROM
4 RAM
6 Display
7 codecs
7a JPEG codec
7b scanner codec
7c print codec
10b Second conversion circuit
11a Multi-valued memory management circuit
12a Encoding memory
14 Recorder
27, 30, 31, 32 color image data
28, 30a, 31a, 32a First page of color image data
T communication management table

Claims (4)

Facsimile transmission / reception means for transmitting / receiving image data by facsimile communication, and, when the image data transmitted / received by facsimile communication is color image data, data conversion means for converting a predetermined area of the color image data into monochrome image data, Storage means for storing in the memory information relating to communication of the image data together with the converted monochrome image data, and output means for outputting the information relating to the communication and the monochrome image data stored in the memory. Communication device. E-mail transmission / reception means for transmitting / receiving image data by e-mail, and data conversion means for converting a predetermined area of the color image data into monochrome image data when the image data transmitted / received by e-mail is color image data Storage means for storing, in a memory, information related to communication of the image data together with the converted monochrome image data, and output means for outputting the information related to the communication and the monochrome image data stored in the memory. Communication device. The data conversion means, when the color image data composed of a plurality of files is attached to the e-mail transmitted and received by the e-mail transmission and reception means, as the predetermined area, each of the color image data composed of the plurality of files 3. The communication apparatus according to claim 2, wherein only the head part or the head part of the color image data attached as the head file is converted into monochrome image data. The image processing apparatus further includes an encoding unit that encodes the monochrome image data converted by the data conversion unit using a plurality of encoding schemes, and the encoding unit has a threshold when the monochrome image data is encoded. The encoding method selects an encoding method that is equal to or less than a value, and the storage unit stores, in a memory, information on communication of the image data together with the monochrome image data encoded by the encoding unit. Item 4. The communication device according to any one of Items 1 to 3.

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