JPS5731278A - Estimate coding transmitter - Google Patents

Estimate coding transmitter

Info

Publication number
JPS5731278A
JPS5731278A JP10692080A JP10692080A JPS5731278A JP S5731278 A JPS5731278 A JP S5731278A JP 10692080 A JP10692080 A JP 10692080A JP 10692080 A JP10692080 A JP 10692080A JP S5731278 A JPS5731278 A JP S5731278A
Authority
JP
Japan
Prior art keywords
estimate
transmission
estimator
initialization
synchronous signal
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
JP10692080A
Other languages
Japanese (ja)
Inventor
Tsutomu Asabe
Kenzo Ono
Yasuhito Okawa
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 JP10692080A priority Critical patent/JPS5731278A/en
Publication of JPS5731278A publication Critical patent/JPS5731278A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding

Landscapes

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

Abstract

PURPOSE:To prevent the lowering of S/N of a picture signal due to reduction of the number of quantitizing levels in an estimate coding transmission, by inserting the continuous specific transmission code into a transmission line at the synchronous signal section of a video signal and then performing the initialization of an estimator at the decoding side. CONSTITUTION:An estimate coding part A' consists of a quantitizer 12, an estimator 13 that performs an initialization by a synchronous signal (SYN), and a switching circuit 17 that switches the output (picture signal) of a transmission encoder 16 in the synchronous signal section to a continuous specific transmission code (RSTCODE) to transmit it to a transmission line 20. While an estimate decoding part B' consist of a transmission decoder 23, a detector 24 of the continuous sepcific transmission code, and an estimator 21 that performs an initialization by the output (RS) of the detector 24. In such constitution, one of the quantitizing levels for estimate can be eliminated for initialization of the estimator in the estimate coding transmission of a video signal. Thus an increase of the estimate error is avoided.
JP10692080A 1980-07-31 1980-07-31 Estimate coding transmitter Pending JPS5731278A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10692080A JPS5731278A (en) 1980-07-31 1980-07-31 Estimate coding transmitter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10692080A JPS5731278A (en) 1980-07-31 1980-07-31 Estimate coding transmitter

Publications (1)

Publication Number Publication Date
JPS5731278A true JPS5731278A (en) 1982-02-19

Family

ID=14445853

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10692080A Pending JPS5731278A (en) 1980-07-31 1980-07-31 Estimate coding transmitter

Country Status (1)

Country Link
JP (1) JPS5731278A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5454518A (en) * 1977-10-11 1979-04-28 Nippon Telegr & Teleph Corp <Ntt> Coding system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5454518A (en) * 1977-10-11 1979-04-28 Nippon Telegr & Teleph Corp <Ntt> Coding system

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