JPS55128968A - Encoding system - Google Patents

Encoding system

Info

Publication number
JPS55128968A
JPS55128968A JP16119079A JP16119079A JPS55128968A JP S55128968 A JPS55128968 A JP S55128968A JP 16119079 A JP16119079 A JP 16119079A JP 16119079 A JP16119079 A JP 16119079A JP S55128968 A JPS55128968 A JP S55128968A
Authority
JP
Japan
Prior art keywords
encoding
point
dimensional
changing point
counter
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
JP16119079A
Other languages
Japanese (ja)
Inventor
Takanori Masuda
Mitsuhide Nagasawa
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 JP16119079A priority Critical patent/JPS55128968A/en
Publication of JPS55128968A publication Critical patent/JPS55128968A/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
    • H04N1/417—Systems or arrangements allowing the picture to be reproduced without loss or modification of picture-information using predictive or differential encoding

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)

Abstract

PURPOSE:To reduce the elements necessary for encoding by making use of the address counter of the buffer memory for storage of the binary coded picture signal for the code memory purpose of the bit number of one side through the comparison between the 1-dimensional and 2-dimensional encoding bit numbers. CONSTITUTION:Changing point a1 is detected by changing point detector 14 for the encoding line of RAM5 of buffer memory BUF for storage of the binary coded picture signal, and then point a1 is memorized in address register 16. After this, the reading of RAM5 is advanced to detect changing point b1 of the reference line, following changing point a2 of encoding line and then a1b1 and a1a2 are counted via run length counter 15. Both start point picture element a0 of encoding and the run length code of point a1 are read out of ROM7, and their digit number is set to counter 4. Then the comparison is given between the output of counters 4 and 15 through comparator COM. And thus a0a1 is coded via the 1-dimensional coding in the case of a0a1<=a1b1; while a1b1 is coded via the 2-dimensional coding in the case of a0a1>a1b1 respectively. In this way, the function elements can be reduced without lowering the process speed.
JP16119079A 1979-12-12 1979-12-12 Encoding system Pending JPS55128968A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16119079A JPS55128968A (en) 1979-12-12 1979-12-12 Encoding system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16119079A JPS55128968A (en) 1979-12-12 1979-12-12 Encoding system

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP3645279A Division JPS55128967A (en) 1979-03-28 1979-03-28 Encoding device

Publications (1)

Publication Number Publication Date
JPS55128968A true JPS55128968A (en) 1980-10-06

Family

ID=15730291

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16119079A Pending JPS55128968A (en) 1979-12-12 1979-12-12 Encoding system

Country Status (1)

Country Link
JP (1) JPS55128968A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008017794A (en) * 2006-07-14 2008-01-31 Shimano Inc Fishing rod

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008017794A (en) * 2006-07-14 2008-01-31 Shimano Inc Fishing rod

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