Hitachi, Ltd.

Kouzou Nakamura

Mariko Okude

Toshiaki Nakamura

Tatsuki Inuzuka

Keisuke Nakashima

Yasushi Yokosuka

Norifumi Yanai

Shigemasa Shiota

Shinichi Shinoda

An information transmission/reception apparatus having a reader for reading an image and outputting an image signal of the image, an encoder having a plurality of line memories for storing the image signal for encoding the image signal into a code signal while always confirming that the image signal of at least one line is stored in the line memories, a transceiver for transmitting and receiving the code signal, a decoder having a plurality of line memories for storing the image signal represented by the code signal, the decoder decoding an input code signal from one of a page top position and a page intermediate position, and a recorder for recording the image signal decoded by the decoder, thereby while an image signal is being decoded without using a page memory, a split or overlapping recording of pages can be carried out.

Image signal processing apparatus and information transmission/reception apparatus using the same

An apparatus is provided for expanding, decompressing and editing signals, and particularly a signal processing equipment for printing or displaying images. The apparatus includes compression device for image data, storing device for storing the compression data, decompression device, and editing device for editing, using only signals for editing, wherein the transfer of the data between the device is executed using the compression data.

Signal processing equipment

An image restoring apparatus is provided that can restore an image disturbed by transmission error to a natural image in real time even if the transmission error occurs frequently. The image restoring apparatus has refresh control means for updating all the image data of a frame, inframe correcting means for effecting correction processing in the frame, and selecting means for selecting either of the refresh control means or the in-frame correcting means by detecting of number or positions of blocks having an error in the pixel data of the frame.

Motion image communicating system and image restoring method and

Image signal processing apparatus and information transmission/reception

A document communication apparatus includes an input unit for giving various indications such as document processing; a communication unit for transmitting and receiving information and rules of document processing in communication with another document communication apparatus, and an information processing unit for processing document information based on the received rules of document process Further, a communication apparatus for transmitting or receiving information among plural communication apparatuses makes it possible to transmit and receive a document with the rules of document processing corresponding to the content of at least a request for document processing. The communication apparatus includes a storing unit for storing a document profile containing the rules of document processing transmitted from a transmitting apparatus, a storing unit for storing rules of document processing received from a receiving apparatus, a document processing unit for collating a document profile read from the document profile storing unit to rules of document processing read out of the storing unit and for executing the predetermined document processing based on the identified result, a document data storing unit for storing document data transmitted from the transmitting apparatus, an input unit for inputting the document processing information of the receiving apparatus, and a display unit for displaying document data, the document profile, the rules of document processing of the receiving apparatus, and the document-processed result.

Document communication apparatus and document communication system

An image information processor for producing a high-quality output image by emphasizing the contour portions of a character, a photograph and others and by preventing the generation of a Moire patterns in a dot region, for preventing an increase in the amount of codes, and for making it unnecessary to set desired binarization processing for each original, is provided. The processor includes a unit for scanning the original to convert each pixel data into an electric signal, a unit for controlling the start of image processing, a filter for carrying out enhancement processing among a plurality of pixels arranged in oblique directions after smoothing processing has been carried out among a plurality of contiguous pixels arranged in scanning and traverse directions, and a unit for carrying out at least one of binarization and binarization capable of realizing pseudo tone expression. According to the above construction of the image information processor, a unit for preventing the generation of a Moire pattern in the dot region of an original and for carrying out contour enhancement for the character/photograph region of the original can be formed of simple hardware capable of performing a high-speed operation, a clear binary output is obtained, and an increase in transmission time is prevented.

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Hitachiota, Japan

Kouzou Nakamura