JPS5754455A - Code transmission system - Google Patents

Code transmission system

Info

Publication number
JPS5754455A
JPS5754455A JP55130218A JP13021880A JPS5754455A JP S5754455 A JPS5754455 A JP S5754455A JP 55130218 A JP55130218 A JP 55130218A JP 13021880 A JP13021880 A JP 13021880A JP S5754455 A JPS5754455 A JP S5754455A
Authority
JP
Japan
Prior art keywords
code
counting
group
coded
bits
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
JP55130218A
Other languages
Japanese (ja)
Inventor
Shiro Okamura
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP55130218A priority Critical patent/JPS5754455A/en
Publication of JPS5754455A publication Critical patent/JPS5754455A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • H03M7/46—Conversion to or from run-length codes, i.e. by representing the number of consecutive digits, or groups of digits, of the same kind by a code word and a digit indicative of that kind

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)

Abstract

PURPOSE:To save number of bits, by counting the consecutive number of the same kinds of codes and making code transmission through coding the nature of counting codes in this case. CONSTITUTION:A signal 31 is coded 32 and transmitted to a buffer memory 33. The output of the memory 33 is read out by a suitable group and coded with a suitable bit for the group at a coding circuit 34. By this, the code is counted and transmission is made by adding ''0'' or ''1'' before the code. On the other hand, at reception, a signal incoming to a reception circuit 40 is read out at each group, pulses are arranged according to the method of counting at a decoding circuit 41 and decoded to a original code. Thus, the number of bits can be saved.
JP55130218A 1980-09-19 1980-09-19 Code transmission system Pending JPS5754455A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55130218A JPS5754455A (en) 1980-09-19 1980-09-19 Code transmission system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55130218A JPS5754455A (en) 1980-09-19 1980-09-19 Code transmission system

Publications (1)

Publication Number Publication Date
JPS5754455A true JPS5754455A (en) 1982-03-31

Family

ID=15028906

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55130218A Pending JPS5754455A (en) 1980-09-19 1980-09-19 Code transmission system

Country Status (1)

Country Link
JP (1) JPS5754455A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59118607A (en) * 1982-12-27 1984-07-09 Kumahira Safe Co Inc Automatic door control device for safety-deposit holder

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4987217A (en) * 1972-12-23 1974-08-21

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4987217A (en) * 1972-12-23 1974-08-21

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59118607A (en) * 1982-12-27 1984-07-09 Kumahira Safe Co Inc Automatic door control device for safety-deposit holder

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