JPS55156437A - Waveform data compressive transmission system - Google Patents

Waveform data compressive transmission system

Info

Publication number
JPS55156437A
JPS55156437A JP6539779A JP6539779A JPS55156437A JP S55156437 A JPS55156437 A JP S55156437A JP 6539779 A JP6539779 A JP 6539779A JP 6539779 A JP6539779 A JP 6539779A JP S55156437 A JPS55156437 A JP S55156437A
Authority
JP
Japan
Prior art keywords
code
data
bits
length
msb
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
JP6539779A
Other languages
Japanese (ja)
Inventor
Masahiro Watanabe
Mitsuaki Kamiharashi
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP6539779A priority Critical patent/JPS55156437A/en
Publication of JPS55156437A publication Critical patent/JPS55156437A/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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)

Abstract

PURPOSE:To realize a compressive transmission system adequate for packet transmission by performing waveform data processing by setting a block-length or code- length or code-length information level, etc., adequate for amplitude variation characteristics of a waveform to be transmitted. CONSTITUTION:When one block contains five pieces of data, two bits lower than MSB of each of data D1-D5 are compressed as shown in Fig. II since two bits lower than MSB of each of data D1-D5 are both ''0'' in Fig. I and code-length information ''10'' is added corresponding to a code length of six bits, thereby transmitting data. Since no code lower than MSB of data D6-D10 to be compressed in common are found, no compression comes into effect and code length information ''11'' corresponding to a code length of eight bits is added. As for data D5n+1-D5n+5, four bits lower than MSB can be compressed, and consequently the code length becomes four bits as shown in the figure and code length information ''01'' is added correspondingly.
JP6539779A 1979-05-25 1979-05-25 Waveform data compressive transmission system Pending JPS55156437A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6539779A JPS55156437A (en) 1979-05-25 1979-05-25 Waveform data compressive transmission system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6539779A JPS55156437A (en) 1979-05-25 1979-05-25 Waveform data compressive transmission system

Publications (1)

Publication Number Publication Date
JPS55156437A true JPS55156437A (en) 1980-12-05

Family

ID=13285830

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6539779A Pending JPS55156437A (en) 1979-05-25 1979-05-25 Waveform data compressive transmission system

Country Status (1)

Country Link
JP (1) JPS55156437A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59141845A (en) * 1983-02-03 1984-08-14 Nippon Hoso Kyokai <Nhk> Transmission system of digital signal

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59141845A (en) * 1983-02-03 1984-08-14 Nippon Hoso Kyokai <Nhk> Transmission system of digital signal
JPH0542188B2 (en) * 1983-02-03 1993-06-25 Japan Broadcasting Corp

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