JPS5652987A - Time error correcting unit - Google Patents

Time error correcting unit

Info

Publication number
JPS5652987A
JPS5652987A JP12918279A JP12918279A JPS5652987A JP S5652987 A JPS5652987 A JP S5652987A JP 12918279 A JP12918279 A JP 12918279A JP 12918279 A JP12918279 A JP 12918279A JP S5652987 A JPS5652987 A JP S5652987A
Authority
JP
Japan
Prior art keywords
signal
phase
beginning
forecasting
next picture
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
JP12918279A
Other languages
Japanese (ja)
Other versions
JPS6341477B2 (en
Inventor
Mineo Mizukami
Tatsuo Konishi
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 JP12918279A priority Critical patent/JPS5652987A/en
Priority to US06/194,654 priority patent/US4389678A/en
Publication of JPS5652987A publication Critical patent/JPS5652987A/en
Publication of JPS6341477B2 publication Critical patent/JPS6341477B2/ja
Granted 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
    • H04N5/93—Regeneration of the television signal or of selected parts thereof
    • H04N5/937—Regeneration of the television signal or of selected parts thereof by assembling picture element blocks in an intermediate store
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/79—Processing of colour television signals in connection with recording
    • H04N9/87—Regeneration of colour television signals
    • H04N9/877—Regeneration of colour television signals by assembling picture element blocks in an intermediate memory
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/79—Processing of colour television signals in connection with recording
    • H04N9/87—Regeneration of colour television signals
    • H04N9/89—Time-base error compensation
    • H04N9/896—Time-base error compensation using a digital memory with independent write-in and read-out clock generators

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)

Abstract

PURPOSE:To obtain a stable NTSC color television signal, by detecting the phase difference between a tape line flip-flop signal and a reference line flip-flop signal, and inverting the phase of a color signal of the regenerative video signal, depending on whether the said phase difference is forward of reverse. CONSTITUTION:An output 61 of the variable delay circuit 60 forecasts the beginning of the next picture. The latch circuits 64 and 65 are latched at the same time by the forecasting signal 61. Immediately after the forecasting signal has been generated, the read side address is made to conform with the write side address. As a result, on the contrary, the phase of the write side against the read side can be fixed at the beginning of the next picture, and therefore, the phase of the output video signal does not move up and down nor trembles even in case of any special regenerative state.
JP12918279A 1979-10-05 1979-10-05 Time error correcting unit Granted JPS5652987A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP12918279A JPS5652987A (en) 1979-10-05 1979-10-05 Time error correcting unit
US06/194,654 US4389678A (en) 1979-10-05 1980-10-06 Digital time-base corrector for special motion reproduction by helical-scan VTR

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12918279A JPS5652987A (en) 1979-10-05 1979-10-05 Time error correcting unit

Publications (2)

Publication Number Publication Date
JPS5652987A true JPS5652987A (en) 1981-05-12
JPS6341477B2 JPS6341477B2 (en) 1988-08-17

Family

ID=15003164

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12918279A Granted JPS5652987A (en) 1979-10-05 1979-10-05 Time error correcting unit

Country Status (1)

Country Link
JP (1) JPS5652987A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5689188A (en) * 1979-12-20 1981-07-20 Sony Corp Time base correcting device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54153518A (en) * 1978-05-25 1979-12-03 Sony Corp Corrector for time axis error

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54153518A (en) * 1978-05-25 1979-12-03 Sony Corp Corrector for time axis error

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5689188A (en) * 1979-12-20 1981-07-20 Sony Corp Time base correcting device
JPH0132720B2 (en) * 1979-12-20 1989-07-10 Sony Corp

Also Published As

Publication number Publication date
JPS6341477B2 (en) 1988-08-17

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