JPS54914A - Waveform coder - Google Patents

Waveform coder

Info

Publication number
JPS54914A
JPS54914A JP6714777A JP6714777A JPS54914A JP S54914 A JPS54914 A JP S54914A JP 6714777 A JP6714777 A JP 6714777A JP 6714777 A JP6714777 A JP 6714777A JP S54914 A JPS54914 A JP S54914A
Authority
JP
Japan
Prior art keywords
waveform coder
coder
code series
waveform
deteriorating
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
JP6714777A
Other languages
Japanese (ja)
Inventor
Katsunobu Fushikida
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP6714777A priority Critical patent/JPS54914A/en
Publication of JPS54914A publication Critical patent/JPS54914A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M3/00—Conversion of analogue values to or from differential modulation
    • H03M3/04—Differential modulation with several bits, e.g. differential pulse code modulation [DPCM]

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Noise Elimination (AREA)

Abstract

PURPOSE:To reduce the amount of operation without deteriorating S/N, by performing optimized coding only for the quantized level near the code series based on the code series from a coder, in DPCM system.
JP6714777A 1977-06-06 1977-06-06 Waveform coder Pending JPS54914A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6714777A JPS54914A (en) 1977-06-06 1977-06-06 Waveform coder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6714777A JPS54914A (en) 1977-06-06 1977-06-06 Waveform coder

Publications (1)

Publication Number Publication Date
JPS54914A true JPS54914A (en) 1979-01-06

Family

ID=13336495

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6714777A Pending JPS54914A (en) 1977-06-06 1977-06-06 Waveform coder

Country Status (1)

Country Link
JP (1) JPS54914A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58133033A (en) * 1982-01-29 1983-08-08 デイスコビジヨン・アソシエイツ Method and device for generating series of delta modulation data signal
JPS6195625A (en) * 1984-10-17 1986-05-14 Nippon Gakki Seizo Kk Music signal generator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58133033A (en) * 1982-01-29 1983-08-08 デイスコビジヨン・アソシエイツ Method and device for generating series of delta modulation data signal
JPS6195625A (en) * 1984-10-17 1986-05-14 Nippon Gakki Seizo Kk Music signal generator

Similar Documents

Publication Publication Date Title
JPS53119656A (en) Forecast coding equipment
JPS53111253A (en) Generating circuit for gray code
JPS5336163A (en) Time series waveform coding unit
JPS5432257A (en) Coder
JPS52114257A (en) Encoder device
JPS5219901A (en) Code transmission method
JPS5310907A (en) Encoding circuit
JPS5377976A (en) Accident recorder
JPS5425149A (en) Coding device
JPS5373960A (en) Code conversion system for data transmission
JPS5413719A (en) Pulse transmission system
JPS5421140A (en) Code conversion system
JPS52144202A (en) Encoder circuit
JPS52144203A (en) Encoder circuit
JPS52133707A (en) Encoder circuit
JPS52133708A (en) Encoder circuit
JPS52133706A (en) Encoder circuit
JPS52133705A (en) Encoder circuit
JPS5318313A (en) Encoding system
JPS541773A (en) Transmission code system
JPS5420610A (en) Color graphic coding circuit
JPS53126241A (en) Multi-input arithmetic unit for analog signal
JPS5389601A (en) Light communication unit
JPS532076A (en) Equipment construction method for vapor-growth process
JPS5272545A (en) Bcd code subtraction circuit