JPH05110798A - Picture transmission system - Google Patents

Abstract

PURPOSE:To provide the picture transmission system in which duplicate communication function and communication line are avoided, a single line is used, data transmission and reception are attained between facsimile equipments connecting to plural storage media and data are sent in matching with the data type stored by an opposite storage medium. CONSTITUTION:With respect to the picture transmission system in which document data stored in one or plural storage media 11-14 are sent selectively to a destination, the document data to be sent are selected from the storage media 11-14 are selected and dialed, and the type of data stored in a storage medium of the destination outputted from the destination and the resolution are detected based on the transmission control procedure signal received from the destination, whether or not the detected data type and the document data selected by the resolution are coincident are discriminated, and the data type of the selected document data is informed to the destination based on the transmission control procedure signal and the document data are sent as the feature.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image transmission system such as a solid-state memory, a floppy disk, an optical disk file system or a facsimile to which one or more storage media are connected.

[0002]

2. Description of the Related Art Conventionally, a device such as a personal computer, a facsimile, an optical disk file system, etc. having a data storing function or a processing function has a separate modem and telephone line when transmitting stored data or processed data to a remote place. Was used to send and receive data.

However, in such a device, each device requires a separate communication function such as a modem in order to transfer data using different lines, and a plurality of communication lines are required. Therefore, there is a problem that not only the communication cost is increased, but also the amount of data is increased and the data handled by each device is transferred to a storage medium having a larger capacity.

Therefore, some proposals have been made for transmitting data such as character information created by a personal computer to a remote place for printing by using a communication function of a facsimile. For example, Japanese Patent Application Laid-Open No. 2-267651 proposes a personal computer with a built-in facsimile function that converts character and number information created by a personal computer into image information that can be transmitted by facsimile and sends it directly to a communication line.

[0005]

However, by integrating the functions of the personal computer and the facsimile, it is possible to transmit the data of the personal computer and that of the facsimile by a single modem and communication line, respectively. There is a problem that it is limited to memory and can handle only a limited amount of data.

In view of the above-mentioned drawbacks of the prior art, the present invention avoids duplication of communication functions and communication lines and makes it possible to send and receive data between facsimile machines connected to a plurality of storage media using a single line. The purpose is to provide a simple image transmission method. Another object of the present invention is to provide an image transmission system capable of transmission according to the data type that can be stored in the storage medium of the other party. Another object of the present invention is to provide an image transmission system capable of storing data in a storage medium according to the type of data transmitted on the receiving side.

[0007]

The invention according to claim 1 relates to an image transmission system for selectively transmitting document data stored in one or a plurality of storage media to a destination, and transmitting from the storage media. The document data to be selected is selected, a call is made, the data type and resolution that can be output by the partner or stored in the storage medium of the partner is detected based on the transmission control procedure signal received from the partner, and the It is determined whether the selected document data matches the detected data type and resolution, and then the data type of the selected document data is notified to the other party based on the transmission control procedure signal. We propose an image transmission method characterized by transmitting.

When the data match, the data may be directly transmitted to the other party according to the transmission control procedure, and when the data do not match, the transmission is stopped or the selection is performed as described in claim 2. When the document data does not match the detected data type and resolution, it is preferable to process the data and transmit it to the other party. The data type refers to CCITT-compliant image compressed data and other data, such as character data or print data generated by a personal computer or data generated by an optical disk file system, and the pixel density is a facsimile image. It refers to 400/200 dpi generated by the reading unit and 300 dpi generated by the software of the printer, and generally corresponds to the pixel density type of image data.

On the other hand, claim 3 relates to an efficient transmission data storage system on the receiving side. First, one or a plurality of storage media capable of storing the document data transmitted from the other party are provided, After detecting the data type of the document data based on the received transmission control procedure signal, the storage medium or storage area to be stored is selected in correspondence with the data type, and the document is stored in the selected storage medium or storage area. It is characterized by storing data. In this case, the pixel density may be detected together with the data type, and the storage medium or storage area to be stored may be selected in association with the data type and the pixel density.

[0010]

According to the first aspect of the present invention, document data such as character data or image compressed data is arbitrarily associated with the document data from the storage medium connected to the own device in correspondence with the receiving ability of the destination transmission device (for example, facsimile). It can be selectively transmitted for each. In particular, the present invention can detect the data type and pixel density that can be received by the other party or stored in the other party's storage medium based on the transmission control procedure signal received from the other party, so that accurate information can be obtained before data transmission. You can get it and there is no risk of accidental transmission.

In order to notify the other party in advance of the data type of the selected document data, the other party can select the storage medium to be stored in association with the data type. Further, according to the invention described in claim 3, since the data can be stored while selecting the storage medium or the storage area according to the data type and the resolution, it is possible to efficiently store the transmission data on the receiving side. Becomes

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of the present invention will be exemplarily described in detail below with reference to the drawings. FIG. 1 shows a block configuration diagram of a facsimile machine according to an embodiment of the present invention. 1 is a CPU for controlling the signal flow of the entire apparatus, 2 is a RAM for temporarily storing messages sent from an external facsimile, 3 is a read-only memory for storing programs and the like, and 4 is encoding / decoding. The CODEC 5 for performing the conversion is a keyboard and display control unit, and 6 is an external interface used when connecting to a computer or other external device. Reference numeral 7 is a modem and network control unit that is connected to the line and performs modulation / demodulation. Reference numeral 8 is an image scanner for reading an image, and 9 is a printer for outputting the image information stored in the temporary storage element 10. Floppy disk drives 11 and 12 and optical disk drives 13 and 14 are further connected as storage media to each of the above constituent units.

It should be noted that, in this embodiment, the CC
The ITT-compliant compressed image data is stored in the optical disk file system, and the character data generated by the personal computer is stored in the floppy disk.

The operation procedure of this embodiment will be described below with reference to the flow charts of FIGS. First, the document data to be transmitted is selected. (STEP 1) The document data is selected by inputting a drive name and a file name on the operator console shown in FIG. That is, when the file key is pressed from the standby screen shown in (a), the screen shown in (b) appears, prompting the operator to input the drive name and file name. The operator inputs the drive name and file name as shown in (c), confirms whether there is an input error, and if there is no error, presses the YES key. The sending facsimile searches for the drive name and file name inside the apparatus, and when the existence is confirmed, the confirmation is displayed as shown in (d). After the setting of the document to be transmitted is completed by the above procedure, the telephone number is input from the facsimile on the transmission side to make a call (STEP 2), and the transmission preparation is performed according to the transmission control procedure conforming to T30 of CCITT recommendation. In the case of the present embodiment, it is assumed that image compressed data is selected from the optical disk (drive A).

The control procedure will be described based on the flow chart of FIG. 3 and the sequence shown in FIG. 5. First, the calling side and the called side are connected by a line, and then the calling station from the calling side to the called side. After the identification signal CNG is sent, and subsequently the called terminal identification signal CED is sent from the called side to the calling side, the initial identification further includes the non-standard device signal NSF, the called terminal identification signal CSI, and the digital identification signal DIS. Send a signal. (ST
EP3)

Then, from the information of the non-standard function identification signal NSF sent from the other party, the data type receivable by the other party facsimile in the CPU, the presence / absence of standard setting, and the resolution are confirmed. (STEP11, STEP) For example, an NSF signal generally has a length of about 40 bytes, and since an option bit exists in addition to the country code, model code, and manufacturer code, the option bit identifies the data type. A bit area of "11" is set when the receivable data is image compressed data, and "11" is set when both the image compressed data and the character data are readable. "A flag is set, and a bit area for identifying a receivable resolution type is formed. For example, when the readable data is image compression data, a resolution of 400 dpi is readable. If 100 "and 300 dpi are readable, set the flag" 011 ". The discrimination is easy.

As a result, first, it is judged from the model code in the NSF information whether the model is a compatible model or not (S
TEP12), if it is a compatible model, it is determined whether or not it is possible to receive the character data next (STEP1).
3) If the character data can be received, the character data is read from the floppy disk as it is. (STEP 14) If the model is not compatible, or if character data cannot be received, it is determined from the NSF information whether the resolution is the standard setting. (STEP15)

In the case of non-standard setting, it is judged whether or not the resolution receivable from the NSF is 300 dpi (STEP 15), and if the resolution is 300 dpi, the designated file is read from the floppy disk, Decoding and scaling processing is performed to convert 400 to 300 dpi. (STEP16) If the resolution is not 300 dpi, the rest is 400 dpi
Since it is i, the file is read from the optical disc as it is and the decoding process is performed. (STEP 17)

On the other hand, in the case of the standard setting, the CP is determined from the information of the digital identification signal DIS sent from the other party next.
Confirm the resolution in U, and the resolution is 203 * 192 dpi
(Hereinafter referred to as 200 dpi) is determined (S
TEP18), when the resolution is 200 dpi, the specified file is read from the optical disk, and the decoding scaling process is performed to convert 400 → 200 dpi. (STE
P19) Also, the resolution is 203 dpi * 96 dpi (hereinafter 100 dpi)
i)), the specified file is read from the floppy disk, decryption scaling processing is performed, and 400 →
Convert 100 dpi. (STEP20)

Next, the data converted in accordance with the resolutions of the respective receiving sides are MH, MR,
After encoding into any of the MMRs (STEP 21), the process proceeds to STEP 5 shown in FIG.

Returning to FIG. 2, at the calling side, the NSF and D
A bit area similar to IS is set, and a reception command signal including a transmission side non-standard device setting signal NSS and a digital command signal DCS with the data type and resolution type of the encoded image is transmitted to the destination ( After transmitting the training signal TCF in STEP 5), the encoded data is transmitted after waiting for the reception preparation confirmation signal CFR from the receiver. (STEP 6) By the above procedure, the data of the drive designated by the transmitting facsimile is transmitted to the receiving facsimile.

Next, the operation on the receiving side will be described. There is no problem in the recipient facsimile of the receiving side when the data sent from the transmitting side is output as it is, but it corresponds to the type of the data when it is stored in the floppy disk or optical disk file system connected to the device. It is necessary to select the recording medium to be stored. The operation procedure will be described based on the flowchart of FIG.

First, from the NSS information sent from the sending side, the sending data type in the CPU, the presence or absence of standard setting,
Check the resolution. (STEP 51) As a result, first, it is judged from the flag in the NSS information whether or not the transmission data is character data (ST).
If it is EP52) and character data, it is stored in the floppy disk as it is. (STEP 53) If the transmission data is not character data, it is image compression data, and it is first determined from the NSS information whether the resolution is the standard setting. (STEP 54)

In the case of the non-standard setting, it is judged from the NSS whether the resolution of the transmission data is 300 dpi or not, and if the resolution is 300 dpi, 30 is determined.
After converting 0 → 400 dpi, MMR code conversion is performed and the result is stored in the optical disk file system. (S
TEP55) If the resolution is not 300 dpi, the rest is 400 dpi.
Since i is i, MMR code conversion is performed as it is,
It is stored in the optical disk file system. (STEP
56)

On the other hand, in the case of the standard setting, the CP is determined from the information of the digital identification signal DCS sent from the other party next.
The resolution is checked in U to determine whether the resolution is 200 dpi. If the resolution is 200 dpi, the transmission data is converted from 200 to 400 dpi and then stored in the optical disc file system. (STE
P57) When the resolution of the transmission data is 100 dpi, the transmission data is converted from 100 to 400 dpi and then stored in the optical disc file system. (STE
P58)

According to the above procedure, the receiving side stores the character data in the floppy disk and the compressed image data in the optical disk file system with the resolution unified to 400 dpi in the designated storage media.

[Brief description of drawings]

FIG. 1 is a block diagram of a facsimile according to an exemplary embodiment of the present invention.

FIG. 2 is an overall flowchart of the document data transmission side.

FIG. 3 is a flowchart of a main part shown in FIG.

FIG. 4 is a selection screen for inputting a drive name and a file name.

FIG. 5 is a sequence of transmission control procedure signals used in this embodiment.

FIG. 6 is a flow chart on the document data receiving side.

[Explanation of symbols]

1 CPU 2 RAM 3 Read Only Memory 4 CODEC 5 Keyboard and Display Control Unit 6 External Interface 7 Modem and Network Control Unit 8 Image Scanner 9 Printer 10 Temporary Storage Element 11, 12 Floppy Disk Drive 13, 14 Optical Disk Drive

Claims (4)

[Claims] 1. An image transmission system for selectively transmitting document data stored in one or a plurality of storage media to a destination, and selecting document data to be transmitted from the storage medium to make a call, Based on the transmission control procedure signal received earlier, the data type and resolution that the other party can output or can be stored in the storage medium of the other party are detected, and the selected data matches the detected data type and resolution. It is determined whether or not the data type of the selected data is then notified to the other party based on the transmission control procedure signal, and then data transmission is performed. 2. The image transmission system according to claim 1, wherein when the selected data does not match the detected data type and resolution, the data is processed and transmitted to the other party. 3. A storage medium comprising one or a plurality of storage media capable of storing the document data transmitted from the other party, wherein after detecting the data type of the document data based on the transmission control procedure signal received from the other party, An image transmission method characterized in that a storage medium or storage area to be stored is selected corresponding to the data type, and the data is stored in the selected storage medium or storage area. 4. The image transmission system according to claim 3, wherein a resolution is detected together with the data type, and a storage medium or a storage area to be stored is selected in association with the data type and the resolution.