JPS5741047A - Encoding method - Google Patents

Encoding method

Info

Publication number
JPS5741047A
JPS5741047A JP11735680A JP11735680A JPS5741047A JP S5741047 A JPS5741047 A JP S5741047A JP 11735680 A JP11735680 A JP 11735680A JP 11735680 A JP11735680 A JP 11735680A JP S5741047 A JPS5741047 A JP S5741047A
Authority
JP
Japan
Prior art keywords
code
same polarity
signal
analog signal
analog
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
JP11735680A
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 JP11735680A priority Critical patent/JPS5741047A/en
Publication of JPS5741047A publication Critical patent/JPS5741047A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B14/00—Transmission systems not characterised by the medium used for transmission
    • H04B14/02—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation
    • H04B14/04—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation using pulse code modulation

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)

Abstract

PURPOSE:To reduce the influence of dropout, etc., by converting a center level part of an analog signal to a code having the most same polarity bits, in case when the analog signal is converted to a digital signal. CONSTITUTION:An analog sicnal is converted to a digital signal by use of a code 3 or 4, which has many same polarity bits such as 1111, 0000 in a center level part of the analog signal, and also decreases the number of codes having the same polarity in principle toward the upper and lower end levels. According to such encoding, even if dropout occurs and the code is varied to 1111, 0000, only the regenerative signal level is varied to a center level, and comparing with the case of natural binary encoding, no maximum nor minimum level is shown, and its influence is reduced.
JP11735680A 1980-08-26 1980-08-26 Encoding method Pending JPS5741047A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11735680A JPS5741047A (en) 1980-08-26 1980-08-26 Encoding method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11735680A JPS5741047A (en) 1980-08-26 1980-08-26 Encoding method

Publications (1)

Publication Number Publication Date
JPS5741047A true JPS5741047A (en) 1982-03-06

Family

ID=14709652

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11735680A Pending JPS5741047A (en) 1980-08-26 1980-08-26 Encoding method

Country Status (1)

Country Link
JP (1) JPS5741047A (en)

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