JPS56141669A - Decoder - Google Patents

Decoder

Info

Publication number
JPS56141669A
JPS56141669A JP4591980A JP4591980A JPS56141669A JP S56141669 A JPS56141669 A JP S56141669A JP 4591980 A JP4591980 A JP 4591980A JP 4591980 A JP4591980 A JP 4591980A JP S56141669 A JPS56141669 A JP S56141669A
Authority
JP
Japan
Prior art keywords
stored
writing information
picture
eol
parallel buffer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP4591980A
Other languages
Japanese (ja)
Inventor
Toshiaki Yamada
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ricoh Co Ltd
Original Assignee
Ricoh Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP4591980A priority Critical patent/JPS56141669A/en
Publication of JPS56141669A publication Critical patent/JPS56141669A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/41—Bandwidth or redundancy reduction
    • H04N1/411—Bandwidth or redundancy reduction for the transmission or storage or reproduction of two-tone pictures, e.g. black and white pictures
    • H04N1/413—Systems or arrangements allowing the picture to be reproduced without loss or modification of picture-information
    • H04N1/419—Systems or arrangements allowing the picture to be reproduced without loss or modification of picture-information in which encoding of the length of a succession of picture-elements of the same value along a scanning line is the only encoding step

Abstract

PURPOSE:To decode a coded picture and writing information which has been stored in the memory a receiving side at a high speed, by providing pluaral parallel buffer memories which are able to store the encoded picture and writing information by 1 line volume. CONSTITUTION:The encoding picture and writing information of MH system from the transmission side is stored in order by 16 bits each in order of its transmission. When receiving of the encoding picture and writing information of 1 line portion has been finished, a line synchornizing signal EOL is transmitted, therefore, this EOL is stored in a prescribed position by generating a necessary dummy. Also, the EOL detection part 6 switches a clock of the clock control part 5 whenever alternately to the parallel buffer memories 1, 3. In this way, the data which have been stored in the first and second parallel buffer memory 1 and 3 are read out as serial data by the first and second decoding circuits 2, 4, respectively, and both of them are decoded simultaneously to the original picture information capable of recording.
JP4591980A 1980-04-08 1980-04-08 Decoder Pending JPS56141669A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4591980A JPS56141669A (en) 1980-04-08 1980-04-08 Decoder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4591980A JPS56141669A (en) 1980-04-08 1980-04-08 Decoder

Publications (1)

Publication Number Publication Date
JPS56141669A true JPS56141669A (en) 1981-11-05

Family

ID=12732648

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4591980A Pending JPS56141669A (en) 1980-04-08 1980-04-08 Decoder

Country Status (1)

Country Link
JP (1) JPS56141669A (en)

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