CA1168356A - Data transmission or recording with reduced data rate - Google Patents

Data transmission or recording with reduced data rate

Info

Publication number
CA1168356A
CA1168356A CA000387280A CA387280A CA1168356A CA 1168356 A CA1168356 A CA 1168356A CA 000387280 A CA000387280 A CA 000387280A CA 387280 A CA387280 A CA 387280A CA 1168356 A CA1168356 A CA 1168356A
Authority
CA
Canada
Prior art keywords
samples
sample
closest match
combinations
average
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.)
Expired
Application number
CA000387280A
Other languages
English (en)
French (fr)
Inventor
Robert A. Dischert
Eugene M. Nagle
James J. Williams, Jr.
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.)
RCA Corp
Original Assignee
RCA Corp
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 RCA Corp filed Critical RCA Corp
Application granted granted Critical
Publication of CA1168356A publication Critical patent/CA1168356A/en
Expired 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
    • H04N19/59—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving spatial sub-sampling or interpolation, e.g. alteration of picture size or resolution
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N11/00—Colour television systems
    • H04N11/04—Colour television systems using pulse code modulation
    • H04N11/042—Codec means

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (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)
  • Color Television Systems (AREA)
  • Studio Circuits (AREA)
CA000387280A 1980-10-15 1981-10-05 Data transmission or recording with reduced data rate Expired CA1168356A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US197,290 1980-10-15
US06/197,290 US4320416A (en) 1980-10-15 1980-10-15 Technique for optimally encoding digitally encoded video signals

Publications (1)

Publication Number Publication Date
CA1168356A true CA1168356A (en) 1984-05-29

Family

ID=22728792

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000387280A Expired CA1168356A (en) 1980-10-15 1981-10-05 Data transmission or recording with reduced data rate

Country Status (6)

Country Link
US (1) US4320416A (OSRAM)
JP (1) JPS5797283A (OSRAM)
CA (1) CA1168356A (OSRAM)
DE (1) DE3140825A1 (OSRAM)
FR (1) FR2492204B1 (OSRAM)
GB (1) GB2085697B (OSRAM)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4425588A (en) 1981-01-30 1984-01-10 Baldwin John L E Processing of digital signals
US4352122A (en) * 1981-03-02 1982-09-28 Rca Corporation Adaptive composite-component transcoding hierarchy for digital video
JPS59201594A (ja) * 1983-04-22 1984-11-15 Victor Co Of Japan Ltd デイジタルビデオ信号再生装置
US4605963A (en) * 1983-08-15 1986-08-12 Rca Corporation Reduction of control bits for adaptive sub-nyquist encoder
CA1270322A (en) * 1983-12-22 1990-06-12 Kotaro Asai Adaptive comb filter
JPS63215185A (ja) * 1987-03-03 1988-09-07 Matsushita Electric Ind Co Ltd サブナイキスト符号化装置および復号化装置
US5021880A (en) * 1990-06-13 1991-06-04 Northern Telecom Limited Digital video signal compression
DE4036546C1 (en) * 1990-11-16 1992-03-26 Rohde & Schwarz Gmbh & Co Kg, 8000 Muenchen, De Data reduction for information signal transmission - stores signal patterns in transmitter and receiver, transmits address of pattern resembling information signal and reads pattern in receiver

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3462547A (en) * 1966-09-06 1969-08-19 Stanford Research Inst Data processing system for signals obtained from a video scanner
FR2320017A1 (fr) * 1975-07-29 1977-02-25 Telecommunications Sa Procede de codage d'image avec sous echantillonnage permettant une reduction du debit numerique
GB1597484A (en) * 1977-03-21 1981-09-09 Rca Corp Television picture compressor
US4227204A (en) * 1978-09-21 1980-10-07 Cbs Inc. Method and apparatus for PCM-encoding NTSC color television at sub-Nyquist rate
CA1171958A (en) * 1980-02-07 1984-07-31 Robert A. Dischert Data rate reduction for digital video signals by subsampling and adaptive reconstruction
FR2489061A1 (fr) * 1980-08-20 1982-02-26 France Etat Systeme de transmission d'images utilisant un dispositif de restitutions de points

Also Published As

Publication number Publication date
GB2085697B (en) 1985-06-26
DE3140825A1 (de) 1982-06-24
GB2085697A (en) 1982-04-28
DE3140825C2 (OSRAM) 1988-01-07
FR2492204B1 (fr) 1986-06-27
FR2492204A1 (fr) 1982-04-16
US4320416A (en) 1982-03-16
JPS5797283A (en) 1982-06-16
JPH0350477B2 (OSRAM) 1991-08-01

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Legal Events

Date Code Title Description
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