JPS63100869A - Electronic filing device - Google Patents

Abstract

PURPOSE:To store lots of documents without increasing the storage capacity by providing a 1st coder/decoder having a standard compression system and a 2nd coder/decoder compressing picture information with lesser redundancy than the former system. CONSTITUTION:The picture information sent from an opposite facsimile equipment is transferred to a CODEC 5 via a line adaptor 6. The CODEC 5 restores the picture information compressed by the standard system into the original image information tentatively and stores the result to a frame memory 4. Then the image information is transferred to a CODEC 3, where the information is compressed and coded by the non-standard but less redundant system and the result is stored in an optical disk device 1 via a buffer memory 2.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an electronic filing device having a communication function with a facsimile device.

[Conventional technology]

Conventionally, this type of electronic filing device transmits stored image information to a facsimile machine without converting the compression method, and stores image information received from the facsimile device without converting the compression method. Ta.

[Problem that the invention seeks to solve]

The conventional electronic filing device described above transmits and receives data to and from a facsimile machine, so although there are non-standard methods that can compress image information with less redundancy, there are methods that satisfy standard specifications, such as the CCITT standard method. This method has the disadvantage that the image information must be compressed and stored, resulting in a large amount of image information to be stored.

[Means for solving problems]

In order to eliminate such drawbacks, the present invention provides a first encoder/decoder having a standard compression method in an electronic filing device that has a communication function with a facsimile device and stores and retrieves image information. A second encoder/decoder is provided which compresses image information with less redundancy than this encoder/decoder.

[Effect]

In the present invention, a large amount of documents can be stored without increasing storage capacity.

〔Example〕

An embodiment of an electronic filing device according to the present invention is shown in the figure. In the figure, 1 is an optical disk device, 2 is a buffer memory, 3 is a codec (CODEC) as a second encoder/decoder, 4 is a frame memory, and 5 is a first encoder/decoder. codec, 6 is a line adapter.

Next, the functions etc. of the device configured in this way will be explained. The optical disk device 1 is for storing image information, and the buffer memory 2 is for acting as an intermediary between the optical disk device 1 and the codec 3. Codec 3 is an encoder/decoder that compresses image information with less redundancy than codec 5. The frame memory 4 is a storage device such as an IC memory or a magnetic disk that temporarily stores image information expanded by the codecs 3 and 5. Codec 5 is an encoding system with a standard compression method.
It is a decoder. Further, the line adapter 6 is a line interface for communicating with a destination facsimile machine.

Next, the operation of this device will be explained. First, the operation when transmitting from this device to a facsimile device will be described. Image information stored in the optical disk device 1 is transferred to the codec 3 via the buffer memory 2. The codec 3 performs decompression processing, restores the image information compressed using a non-standard method to the original image information, and stores it in the frame memory 4. The image information is then transferred to the codec 5, re-encoded using standard compression methods, and transmitted via the line adapter 6 to the facsimile machine.

Next, a case will be described in which this apparatus receives image information sent from a facsimile machine. Image information sent from the other party's facsimile machine is transferred to the codec 5 via the line adapter 6. This codec 5 temporarily restores the image information compressed by the standard method to the original image information and stores it in the frame memory 4. Next, the image information is transferred to the codec 3, compressed and encoded using a non-standard but less redundant method, and stored in the optical disk device 1 via the buffer memory 2.

〔Effect of the invention〕

As explained above, the present invention includes a first encoder/decoder that uses a standard compression method, and a second encoder that compresses image information with less redundancy than the first encoder/decoder. - By being equipped with a decoder, it is possible to store image information with a smaller amount of information than in conventional devices, which not only allows communication with facsimile devices as before, but also increases storage capacity. This has the effect of allowing you to accumulate large amounts of documents without any hassle.

[Brief explanation of the drawing]

The figure is a system diagram showing one embodiment of an electronic filing device according to the present invention. 1... Optical disk device, 2... Buffer memory, 3
．． 5... Codec, 4... Frame memory, 5.
...Line adapter.

Claims (1)

[Claims] In an electronic filing device that has a communication function with a facsimile device and stores and retrieves image information, a first encoder/decoder having a standard compression method and a redundancy level higher than that of this encoder/decoder are provided. An electronic filing device characterized by comprising a second encoder/decoder that compresses image information.