JPS57116485A - Time-axis correcting device - Google Patents

Time-axis correcting device

Info

Publication number
JPS57116485A
JPS57116485A JP56002577A JP257781A JPS57116485A JP S57116485 A JPS57116485 A JP S57116485A JP 56002577 A JP56002577 A JP 56002577A JP 257781 A JP257781 A JP 257781A JP S57116485 A JPS57116485 A JP S57116485A
Authority
JP
Japan
Prior art keywords
address
time
pulse
axis
generator
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
JP56002577A
Other languages
Japanese (ja)
Inventor
Shuji Usui
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.)
Hitachi Denshi KK
Original Assignee
Hitachi Denshi KK
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 Hitachi Denshi KK filed Critical Hitachi Denshi KK
Priority to JP56002577A priority Critical patent/JPS57116485A/en
Publication of JPS57116485A publication Critical patent/JPS57116485A/en
Pending legal-status Critical Current

Links

Classifications

    • 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)
  • Television Signal Processing For Recording (AREA)

Abstract

PURPOSE:To perform sufficient correction without causing deterioration in picture quality, by providing horizotal movement by making a vertical jump by two horizontal lines when the time axis of an input TV signal varies beyond correction range. CONSTITUTION:The write address (f) and read address (i) of a TV signal written in and read out of an RAM3 by a time-axis correcting circuit are monitored by an address monitoring device 8, and when the time-axis variation of the input TV signal (a) advances and the address (f) reaches the address (i) and goes beyond correction range, the monitoring device 8 generates a control pulse (j). A 2H inhibition bit pulse generator 9 having received the pulse (j) inputs a 2H inhibition bit pulse K to a write address generator 2 to stop the address (f) for a 2H period. When the time-axis variation goes beyond the correction range with delay, the monitoring device 8 generates a control pulse (l), and an address generator 6 having received the pulse (l) generates a 2H-preceding address (m) from a 2H-preceding address generator 10 as a substitute for the address (i).
JP56002577A 1981-01-13 1981-01-13 Time-axis correcting device Pending JPS57116485A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56002577A JPS57116485A (en) 1981-01-13 1981-01-13 Time-axis correcting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56002577A JPS57116485A (en) 1981-01-13 1981-01-13 Time-axis correcting device

Publications (1)

Publication Number Publication Date
JPS57116485A true JPS57116485A (en) 1982-07-20

Family

ID=11533221

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56002577A Pending JPS57116485A (en) 1981-01-13 1981-01-13 Time-axis correcting device

Country Status (1)

Country Link
JP (1) JPS57116485A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6337790A (en) * 1986-08-01 1988-02-18 Fuji Photo Film Co Ltd Still picture recording device
JPS645274A (en) * 1987-06-29 1989-01-10 Pioneer Electronic Corp Recording information reproducing device
EP0430211A2 (en) * 1989-11-28 1991-06-05 Sony Corporation Time base correcting apparatus

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5443418A (en) * 1977-09-12 1979-04-06 Sony Corp Time axis error correcting device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5443418A (en) * 1977-09-12 1979-04-06 Sony Corp Time axis error correcting device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6337790A (en) * 1986-08-01 1988-02-18 Fuji Photo Film Co Ltd Still picture recording device
JPS645274A (en) * 1987-06-29 1989-01-10 Pioneer Electronic Corp Recording information reproducing device
EP0430211A2 (en) * 1989-11-28 1991-06-05 Sony Corporation Time base correcting apparatus
US5204787A (en) * 1989-11-28 1993-04-20 Sony Corporation Time base correcting apparatus with means for inhibiting memory write and read addresses to prevent address overlap

Similar Documents

Publication Publication Date Title
JPS5727477A (en) Memory circuit
JPS53148317A (en) Error correction unit for time axis
JPS5388517A (en) Noise eliminating circuit of solid state pickup device
JPS5780880A (en) Video signal reproducing device
JPS57116485A (en) Time-axis correcting device
JPS5636278A (en) Video reproducing device
JPS5471614A (en) Signl correcting method of digital video signal
JPS53124935A (en) Control system for disc unit
JPS5437787A (en) Waveform comparative display method using crt
JPS5483718A (en) Improvement unit for picture quality
JPS5470726A (en) Television ghost signal erasing device
JPS55124369A (en) Automatic ghost eliminating device
JPS5275218A (en) Picture quality adjusting unit
JPS5397810A (en) Drop-out compensating system
JPS5316610A (en) Dropout signal compensation circuit
JPS57197646A (en) Picture display device
JPS56132066A (en) Television receiver
JPS5436122A (en) Generator for still picture signal
JPS5731268A (en) Frame signal generator
JPS5421128A (en) Light pen control system
JPS5617589A (en) Automatic waveform equalizing system for television reception signal
JPS5773403A (en) Remote monitor controller
JPS5388515A (en) Correcting device for time axial error
JPS56153472A (en) Driving method for picture analyzer
JPS53143137A (en) Magnetic bubble memory unit