JPS6455985A - High definition digital television - Google Patents
High definition digital televisionInfo
- Publication number
- JPS6455985A JPS6455985A JP62212421A JP21242187A JPS6455985A JP S6455985 A JPS6455985 A JP S6455985A JP 62212421 A JP62212421 A JP 62212421A JP 21242187 A JP21242187 A JP 21242187A JP S6455985 A JPS6455985 A JP S6455985A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- interpolation
- circuit
- interlace scanning
- scanning
- 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
Landscapes
- Television Systems (AREA)
Abstract
PURPOSE:To optimize an interpolation signal at the time of converting to double-density scanning by automatically detecting whether a signal is an interlace scanning signal or a non-interlace scanning signal, and applying inter-field interpolation in case of an interlace scanning signal, but inter-line interpolation in case of an non-interlace scanning signal. CONSTITUTION:An interpolation signal generating circuit 4 generates an interpolation signal for inter-field interpolation by means of its field memory and others, and transmits this signal to a selection circuit 10. To the selecting circuit 10, a current video signal which is equi-phased with the interpolation signal is also transmitted via a delay circuit 6, and the circuit 10 outputs the interpolation signal in case of interlace scanning but the current video signal in case of non-interlace scanning depending on the result of the discrimination between the interlace scanning and the non-interlace scanning by a discriminating circuit 8. In a double density scanning converting circuit 12, the double density scanning conversion is executed between the current video signal from the delay circuit 6 and the output signal from the selecting circuit 10.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62212421A JPS6455985A (en) | 1987-08-26 | 1987-08-26 | High definition digital television |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62212421A JPS6455985A (en) | 1987-08-26 | 1987-08-26 | High definition digital television |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6455985A true JPS6455985A (en) | 1989-03-02 |
Family
ID=16622310
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62212421A Pending JPS6455985A (en) | 1987-08-26 | 1987-08-26 | High definition digital television |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6455985A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11927934B2 (en) | 2019-10-31 | 2024-03-12 | Disco Corporation | Cutting apparatus capable of detecting configuration abnormalities of a cutting blade |
-
1987
- 1987-08-26 JP JP62212421A patent/JPS6455985A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11927934B2 (en) | 2019-10-31 | 2024-03-12 | Disco Corporation | Cutting apparatus capable of detecting configuration abnormalities of a cutting blade |
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