JPS6476458A - Signal processor - Google Patents
Signal processorInfo
- Publication number
- JPS6476458A JPS6476458A JP62233166A JP23316687A JPS6476458A JP S6476458 A JPS6476458 A JP S6476458A JP 62233166 A JP62233166 A JP 62233166A JP 23316687 A JP23316687 A JP 23316687A JP S6476458 A JPS6476458 A JP S6476458A
- Authority
- JP
- Japan
- Prior art keywords
- frequency component
- circuit
- high frequency
- component
- emphasis
- 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 Signal Processing For Recording (AREA)
Abstract
PURPOSE:To decrease a noise component with high accuracy by providing a means to execute conversion to a condition in which a high frequency component is attenuated with prescribed quantity to be smaller than a low frequency component and a means to amplify a high frequency component different from the above mentioned one. CONSTITUTION:For a luminance signal, the high frequency component is extracted in a waveform converting circuit 100, suppressed by the prescribed quantity and outputted to a fixing emphasis circuit 101. The circuit 101 amplifies the high frequency component. The worked luminance signal is supplied through a changing-over switch 102 to a non-linear emphasis circuit 103. Then, the noise component is further decreased by loading normal emphasis and recorded through a limiter circuit 104 and an FM modulation circuit 105 to a magnetic sheet 111. Thus, since the high frequency component, which corresponds to the rising and falling edge parts of the luminance signal, is once suppressed and the emphasis is loaded to the high area component of the suppressed frequency component, the noise component can be decreased.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62233166A JPS6476458A (en) | 1987-09-16 | 1987-09-16 | Signal processor |
US07/762,786 US5179476A (en) | 1987-09-16 | 1991-09-19 | Signal processor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62233166A JPS6476458A (en) | 1987-09-16 | 1987-09-16 | Signal processor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6476458A true JPS6476458A (en) | 1989-03-22 |
Family
ID=16950756
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62233166A Pending JPS6476458A (en) | 1987-09-16 | 1987-09-16 | Signal processor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6476458A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0398090A2 (en) * | 1989-05-15 | 1990-11-22 | Kabushiki Kaisha Toshiba | Video signal processor for removing high frequency noise component |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5327415A (en) * | 1976-08-26 | 1978-03-14 | Sony Corp | Recordi ng and reproducing system |
-
1987
- 1987-09-16 JP JP62233166A patent/JPS6476458A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5327415A (en) * | 1976-08-26 | 1978-03-14 | Sony Corp | Recordi ng and reproducing system |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0398090A2 (en) * | 1989-05-15 | 1990-11-22 | Kabushiki Kaisha Toshiba | Video signal processor for removing high frequency noise component |
EP0398090A3 (en) * | 1989-05-15 | 1992-03-25 | Kabushiki Kaisha Toshiba | Video signal processor for removing high frequency noise component |
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