JPS641380A - Luminance signal processing circuit - Google Patents
Luminance signal processing circuitInfo
- Publication number
- JPS641380A JPS641380A JP62157020A JP15702087A JPS641380A JP S641380 A JPS641380 A JP S641380A JP 62157020 A JP62157020 A JP 62157020A JP 15702087 A JP15702087 A JP 15702087A JP S641380 A JPS641380 A JP S641380A
- Authority
- JP
- Japan
- Prior art keywords
- emphasis
- vertical direction
- coefficient
- time
- signal processing
- 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
Landscapes
- Picture Signal Circuits (AREA)
- Television Signal Processing For Recording (AREA)
Abstract
PURPOSE: To obtain four functions and characteristics only by one 1H delay device by giving a coefficient corresponding to the transfer function of the characteristics at the time of the operational characteristics in which a vertical direction de-emphasis and a line noise cancellor operation are used in common.
CONSTITUTION: A titled circuit is constituted in such a way that it has the coefficient of Kp=1 and X=X1 at the time of the vertical direction emphasis, the coefficient which is Kp=0, or a third switch 13 is turned off, and X=X2 at the time of the noise cancellor operation, and the coefficient that X=-m/(1+m) and Kp=-X corresponding to the transfer function 1/(1+m)-mz-1((m) signifies the coefficient and z-1 means the 1H delay device)of the characteristics at the time of the operation characteristics in which the vertical direction de-emphasis and the line noise cancellor operation are used in common. With only one 1H delay device 11, four functions of the characteristics in which the vertical direction emphasis, the noise cancellor, the vertical direction de-emphasis are added, and a drop-out compensation are attained.
COPYRIGHT: (C)1989,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62157020A JP2535021B2 (en) | 1987-06-24 | 1987-06-24 | Luminance signal processing circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62157020A JP2535021B2 (en) | 1987-06-24 | 1987-06-24 | Luminance signal processing circuit |
Publications (3)
Publication Number | Publication Date |
---|---|
JPH011380A JPH011380A (en) | 1989-01-05 |
JPS641380A true JPS641380A (en) | 1989-01-05 |
JP2535021B2 JP2535021B2 (en) | 1996-09-18 |
Family
ID=15640427
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62157020A Expired - Lifetime JP2535021B2 (en) | 1987-06-24 | 1987-06-24 | Luminance signal processing circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2535021B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04211590A (en) * | 1990-01-31 | 1992-08-03 | Sanyo Electric Co Ltd | Noise removing circuit |
-
1987
- 1987-06-24 JP JP62157020A patent/JP2535021B2/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04211590A (en) * | 1990-01-31 | 1992-08-03 | Sanyo Electric Co Ltd | Noise removing circuit |
Also Published As
Publication number | Publication date |
---|---|
JP2535021B2 (en) | 1996-09-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EXPY | Cancellation because of completion of term |