JPH02210958A - Facsimile signal transmitter-receiver - Google Patents

Abstract

PURPOSE:To relieve the load of an electronic filing system by providing a function converting a picture signal and matching the size of the screen. CONSTITUTION:When an encoding system for an original size or picture information is not coincident, a 2nd encoding/decoding circuit 5 stores a signal resulting from decoding input picture information into a picture memory 3 via a 2nd buffer memory 6. A magnification/reduction circuit 4 converts the original size of a signal stored in the picture memory 5 into new size and stores the result into the memory 3 again. A 1st encoding/decoding circuit 2 applies compression encoding to a signal read from the picture memory 3 in matching with the electronic filing system and sends the result via a 1st buffer memory 1.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a facsimile signal transmitting/receiving device, and more particularly to a facsimile signal transmitting/receiving device connected to an electronic filing system and a facsimile machine.

[Conventional technology]

A conventional facsimile signal transmitting/receiving device is connected to an electronic filing system and a facsimile machine and performs a facsimile communication control procedure for transmitting and receiving image signals.

[Problem to be solved by the invention]

The conventional facsimile signal transmitting/receiving device described above performs only the communication control procedure with the facsimile, so if the compression encoding method of the image signal handled by the electronic filing system is different from that of the facsimile device, the encoding and decoding within the electronic filing system It is necessary to match the encoding and decoding method of the facsimile machine, and in the case of a large screen size that cannot be received by the facsimile machine (for example, A3 size), it is necessary to convert the image signal to 84 size, so electronic filing is necessary. This has the disadvantage of increasing the load on the system.

[Means to solve the problem]

The facsimile signal transmitting/receiving device of the present invention includes a first code/decoding circuit compatible with an electronic filing system, a second code/decoding circuit compatible with a facsimile machine, and the first and second code/decoding circuits. The apparatus further includes a conversion circuit that converts the decoded image information to match screen dimensions transmitted and received between the electronic filing system and the facsimile machine.

〔Example〕

Next, the present invention will be explained with reference to the drawings.

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

First, the operation when transmitting from the electronic filing system to the facsimile machine will be explained.

When the size of the original (screen) to be transmitted or the compression encoding method of the image information does not match that of the facsimile machine, the first encoding/decoding circuit 2 stores the encoded image information stored in the first buffer memory 1. The decoded signal is stored in the image memory 3.

The enlarging/reducing circuit 4 reads out the signal stored in the image memory 3, converts it into a signal of a document size that can be received by the facsimile machine, and stores it in the image memory 3 again. The second encoding/decoding circuit 5 compresses and encodes the signal read from the image memory 3 to suit the facsimile machine, and transmits it to the facsimile machine via the second buffer memory 6.

Furthermore, when conversion of the document size and encoding method is not necessary, the image information is directly transmitted to the facsimile machine via the first buffer memory 1.

Next, the operation when image information received from the facsimile device is transmitted to the electronic filing system will be described.

When the document size or the encoding method of the image information does not match, the second encoding/decoding circuit 5 stores a signal obtained by decoding the input image information in the image memory 3 via the second buffer memory 6.

The enlargement/reduction circuit 4 converts the original size of the signal stored in the image memory 3 and stores it again. The first encoding/decoding circuit 2 compresses and encodes the signal read from the image memory 3 in a manner compatible with the electronic filing system, and transmits the compressed signal through the first buffer memory 1 .

Furthermore, when conversion of the document size and encoding method is not necessary, the image information received from the facsimile device is directly transmitted to the electronic filing system via the second buffer memory 6.

〔Effect of the invention〕

As explained above, the present invention has first and second code/decoding functions that are compatible with electronic filing systems and facsimile machines, and a function that converts image signals to match screen dimensions between transmitting and receiving devices. This has the effect of reducing the load on the electronic filing system during transmission with a facsimile machine.

. . . first and second code/decoder circuits, 3 . . . image memory, 4 . . . enlargement/reduction circuit.

Claims (1)

[Claims] A first code/decoding circuit that is compatible with an electronic filing system, a second code/decoder that is compatible with a facsimile machine, and converting the image information decoded by the first and second code/decoding circuits. A facsimile signal transmitting/receiving device comprising: a conversion circuit for matching screen sizes transmitted and received between the electronic filing system and the facsimile device.