PT74863A - Television signal filtering system - Google Patents
Television signal filtering systemInfo
- Publication number
- PT74863A PT74863A PT7486382A PT7486382A PT74863A PT 74863 A PT74863 A PT 74863A PT 7486382 A PT7486382 A PT 7486382A PT 7486382 A PT7486382 A PT 7486382A PT 74863 A PT74863 A PT 74863A
- Authority
- PT
- Portugal
- Prior art keywords
- signals
- combined
- stages
- signal
- bandwidth
- Prior art date
Links
Landscapes
- Filters That Use Time-Delay Elements (AREA)
- Picture Signal Circuits (AREA)
Abstract
The system includes a number of serially-coupled signal transfer stages (102,104,106). A video information signal is applied to an input stage (102) and is delayed by at least the time interval of one horizontal TV line (1-H) as it passes through the stages. Various ones of the stages which are (1-H) apart in time include outputs, which are combined by weighting function (120-126) and summing or difference circuits (130-136) to produce bandwidth-limited transversal filter output signals. These signals are additively and subtractively combined (140,150,160,156) to produce a combed band pass chrominance signal, hence obviating the need for subsequent filtering before the signals are further processed. The bandwidth-limited signals may also be combined to provide a user adjustable peaking control signal for the luminance information channel.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PT7486382A PT74863B (en) | 1982-05-10 | 1982-05-10 | Television signal filtering system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PT7486382A PT74863B (en) | 1982-05-10 | 1982-05-10 | Television signal filtering system |
Publications (2)
Publication Number | Publication Date |
---|---|
PT74863A true PT74863A (en) | 1982-06-01 |
PT74863B PT74863B (en) | 1983-12-02 |
Family
ID=20083124
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PT7486382A PT74863B (en) | 1982-05-10 | 1982-05-10 | Television signal filtering system |
Country Status (1)
Country | Link |
---|---|
PT (1) | PT74863B (en) |
-
1982
- 1982-05-10 PT PT7486382A patent/PT74863B/en unknown
Also Published As
Publication number | Publication date |
---|---|
PT74863B (en) | 1983-12-02 |
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