CA2005347A1 - Highly efficient coding apparatus - Google Patents

Highly efficient coding apparatus

Info

Publication number
CA2005347A1
CA2005347A1 CA2005347A CA2005347A CA2005347A1 CA 2005347 A1 CA2005347 A1 CA 2005347A1 CA 2005347 A CA2005347 A CA 2005347A CA 2005347 A CA2005347 A CA 2005347A CA 2005347 A1 CA2005347 A1 CA 2005347A1
Authority
CA
Canada
Prior art keywords
picture
highly efficient
coding
coding apparatus
efficient coding
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.)
Granted
Application number
CA2005347A
Other languages
French (fr)
Other versions
CA2005347C (en
Inventor
Tetsujiro Kondo
Michio Nagai
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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Publication of CA2005347A1 publication Critical patent/CA2005347A1/en
Application granted granted Critical
Publication of CA2005347C publication Critical patent/CA2005347C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/91—Television signal processing therefor
    • H04N5/92—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/91—Television signal processing therefor
    • H04N5/92—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
    • H04N5/926—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback by pulse code modulation
    • H04N5/9261—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback by pulse code modulation involving data reduction
    • 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
    • H03M7/40—Conversion to or from variable length codes, e.g. Shannon-Fano code, Huffman code, Morse code
    • 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
    • H04N19/85—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression
    • H04N19/89—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression involving methods or arrangements for detection of transmission errors at the decoder
    • 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
    • H04N19/90—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using coding techniques not provided for in groups H04N19/10-H04N19/85, e.g. fractals
    • H04N19/98—Adaptive-dynamic-range coding [ADRC]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/78—Television signal recording using magnetic recording
    • H04N5/782—Television signal recording using magnetic recording on tape
    • H04N5/783—Adaptations for reproducing at a rate different from the recording rate

Abstract

The invention lies in a highly efficient coding apparatus configured to break a digital picture signal into picture blocks and, in receipt of a signal from a coding circuit for performing variable-length coding for each picture block, generate an output signal whose sync blocks are serial. By inserting the most significant bit of a coding output signal for each picture element in a predetermined position of the sync block, a reproduced picture is obtained also in the picture search mode in which the head scans a tape across a plurality of tracks.
CA 2005347 1988-12-16 1989-12-13 Highly efficient coding apparatus Expired - Lifetime CA2005347C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP31773688A JP2900385B2 (en) 1988-12-16 1988-12-16 Framing circuit and method
JPP317736/88 1988-12-16

Publications (2)

Publication Number Publication Date
CA2005347A1 true CA2005347A1 (en) 1990-06-16
CA2005347C CA2005347C (en) 2000-04-04

Family

ID=18091467

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2005347 Expired - Lifetime CA2005347C (en) 1988-12-16 1989-12-13 Highly efficient coding apparatus

Country Status (6)

Country Link
US (1) US5023710A (en)
EP (1) EP0373924B1 (en)
JP (1) JP2900385B2 (en)
KR (1) KR100265305B1 (en)
CA (1) CA2005347C (en)
DE (1) DE68911113T2 (en)

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Also Published As

Publication number Publication date
DE68911113D1 (en) 1994-01-13
EP0373924B1 (en) 1993-12-01
KR100265305B1 (en) 2000-09-15
DE68911113T2 (en) 1994-03-31
JPH02162980A (en) 1990-06-22
KR900011294A (en) 1990-07-11
CA2005347C (en) 2000-04-04
EP0373924A1 (en) 1990-06-20
JP2900385B2 (en) 1999-06-02
US5023710A (en) 1991-06-11

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