JPS5625878A - Timing signal insertion and pickup unit for television video signal - Google Patents
Timing signal insertion and pickup unit for television video signalInfo
- Publication number
- JPS5625878A JPS5625878A JP10172479A JP10172479A JPS5625878A JP S5625878 A JPS5625878 A JP S5625878A JP 10172479 A JP10172479 A JP 10172479A JP 10172479 A JP10172479 A JP 10172479A JP S5625878 A JPS5625878 A JP S5625878A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- timing
- video signal
- timing signal
- synchronizing
- 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
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
- H04N5/445—Receiver circuitry for the reception of television signals according to analogue transmission standards for displaying additional information
- H04N5/45—Picture in picture, e.g. displaying simultaneously another television channel in a region of the screen
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Studio Circuits (AREA)
- Television Signal Processing For Recording (AREA)
Abstract
PURPOSE:To accurately correspond the timing data with screen, by giving the accurate timing data to each screen signal without error, through the insertion of timing signal to a part of the blanking line of TV video signal. CONSTITUTION:The timing insertion and pickup unit for TV video signal is constituted with the timing signal insertion section a and the timing signal pickup section b, and the insertion section a is provided with the synchronizing detection section 12 and the delay circuit 13 inputting the TV video signal from the video camera 20. Further, the vertical synchronizing signal in the synchronizing signal t0 is detected at the detection section 12 from the video signal A, and the timing signal is inserted at the modulator 14, from the time t2 delayed with the circuit 13 until the timing not affecting the vertical synchronism of the vertical blanking period by taking the vertical synchronizing signal as the reference, and the timing signal and the original video signal A are synthesized at the synthesis circuit 18. Further, at the pickup section b, the video signal from the insertion section a is received, the synchronizing signal preceding the timing signal is detected at the synchronizing detector 22, the pulsive timing signal after a given time is demodulated at the demodulator 24 to store it in the memory 26 and the timing signal stored at that time is interpreted and displayed on the display at that time is interpreted and displayed on the display unit 28.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10172479A JPS5625878A (en) | 1979-08-09 | 1979-08-09 | Timing signal insertion and pickup unit for television video signal |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10172479A JPS5625878A (en) | 1979-08-09 | 1979-08-09 | Timing signal insertion and pickup unit for television video signal |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5625878A true JPS5625878A (en) | 1981-03-12 |
Family
ID=14308234
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10172479A Pending JPS5625878A (en) | 1979-08-09 | 1979-08-09 | Timing signal insertion and pickup unit for television video signal |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5625878A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6469281A (en) * | 1987-09-09 | 1989-03-15 | Mitsubishi Electric Corp | Inverter controller |
-
1979
- 1979-08-09 JP JP10172479A patent/JPS5625878A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6469281A (en) * | 1987-09-09 | 1989-03-15 | Mitsubishi Electric Corp | Inverter controller |
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