JPS5652987A - Time error correcting unit - Google Patents
Time error correcting unitInfo
- 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
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.
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5689188A (en) * | 1979-12-20 | 1981-07-20 | Sony Corp | Time base correcting device |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54153518A (en) * | 1978-05-25 | 1979-12-03 | Sony Corp | Corrector for time axis error |
-
1979
- 1979-10-05 JP JP12918279A patent/JPS5652987A/en active Granted
Patent Citations (1)
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)
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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