JPS60256984A - 磁気記録再生装置 - Google Patents

磁気記録再生装置

Info

Publication number
JPS60256984A
JPS60256984A JP59112720A JP11272084A JPS60256984A JP S60256984 A JPS60256984 A JP S60256984A JP 59112720 A JP59112720 A JP 59112720A JP 11272084 A JP11272084 A JP 11272084A JP S60256984 A JPS60256984 A JP S60256984A
Authority
JP
Japan
Prior art keywords
signal
recording
flop
flip
time axis
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
JP59112720A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0574146B2 (fr
Inventor
Hideaki Kato
英明 加藤
Shigeru Araki
茂 荒木
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 JP59112720A priority Critical patent/JPS60256984A/ja
Priority to US06/739,137 priority patent/US4680791A/en
Publication of JPS60256984A publication Critical patent/JPS60256984A/ja
Publication of JPH0574146B2 publication Critical patent/JPH0574146B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/167—Systems rendering the television signal unintelligible and subsequently intelligible
    • 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
    • H04N5/913—Television signal processing therefor for scrambling ; for copy protection
    • 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
    • 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
    • H04N5/93—Regeneration of the television signal or of selected parts thereof
    • H04N5/95—Time-base error compensation
    • H04N5/956—Time-base error compensation by using a digital memory with independent write-in and read-out clock generators
    • 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
    • H04N5/913—Television signal processing therefor for scrambling ; for copy protection
    • H04N2005/91357—Television signal processing therefor for scrambling ; for copy protection by modifying the video signal
    • H04N2005/91364—Television signal processing therefor for scrambling ; for copy protection by modifying the video signal the video signal being scrambled

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Detection And Correction Of Errors (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Error Detection And Correction (AREA)
JP59112720A 1984-05-31 1984-05-31 磁気記録再生装置 Granted JPS60256984A (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP59112720A JPS60256984A (ja) 1984-05-31 1984-05-31 磁気記録再生装置
US06/739,137 US4680791A (en) 1984-05-31 1985-05-30 Digital video signal process apparatus for use in a video tape recorder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59112720A JPS60256984A (ja) 1984-05-31 1984-05-31 磁気記録再生装置

Publications (2)

Publication Number Publication Date
JPS60256984A true JPS60256984A (ja) 1985-12-18
JPH0574146B2 JPH0574146B2 (fr) 1993-10-15

Family

ID=14593832

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59112720A Granted JPS60256984A (ja) 1984-05-31 1984-05-31 磁気記録再生装置

Country Status (1)

Country Link
JP (1) JPS60256984A (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0311481A (ja) * 1989-06-09 1991-01-18 Casio Comput Co Ltd データ記録方法及び装置、記録媒体並びにデータ再生方法及び装置
JPH03260841A (ja) * 1990-03-12 1991-11-20 Fujitsu Ltd コード変換装置
EP0735536A2 (fr) * 1995-03-28 1996-10-02 Hitachi, Ltd. Appareil et méthode d'enregistrement de signaux digitaux

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54122113A (en) * 1978-03-16 1979-09-21 Nippon Hoso Kyokai <Nhk> Code signal converter
JPS56150155U (fr) * 1980-04-11 1981-11-11

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54122113A (en) * 1978-03-16 1979-09-21 Nippon Hoso Kyokai <Nhk> Code signal converter
JPS56150155U (fr) * 1980-04-11 1981-11-11

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0311481A (ja) * 1989-06-09 1991-01-18 Casio Comput Co Ltd データ記録方法及び装置、記録媒体並びにデータ再生方法及び装置
JPH03260841A (ja) * 1990-03-12 1991-11-20 Fujitsu Ltd コード変換装置
EP0735536A2 (fr) * 1995-03-28 1996-10-02 Hitachi, Ltd. Appareil et méthode d'enregistrement de signaux digitaux
EP0735536A3 (fr) * 1995-03-28 1997-07-23 Hitachi Ltd Appareil et méthode d'enregistrement de signaux digitaux
US5815331A (en) * 1995-03-28 1998-09-29 Hitachi, Ltd. Digital signal recording method and apparatus involving precode processing for partial response detection

Also Published As

Publication number Publication date
JPH0574146B2 (fr) 1993-10-15

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term