JPS56147572A - Ghost elimination device - Google Patents
Ghost elimination deviceInfo
- Publication number
- JPS56147572A JPS56147572A JP5125780A JP5125780A JPS56147572A JP S56147572 A JPS56147572 A JP S56147572A JP 5125780 A JP5125780 A JP 5125780A JP 5125780 A JP5125780 A JP 5125780A JP S56147572 A JPS56147572 A JP S56147572A
- Authority
- JP
- Japan
- Prior art keywords
- ghost
- video signal
- signal
- transversal filter
- removal
- 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
- H04N5/14—Picture signal circuitry for video frequency region
- H04N5/21—Circuitry for suppressing or minimising disturbance, e.g. moiré or halo
- H04N5/211—Ghost signal cancellation
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Picture Signal Circuits (AREA)
Abstract
PURPOSE:To introduce a video signal in which the ghost is removed, by introducing a ghost removing signal to remove ghost through a transversal filter and synthesizing it with a video signal. CONSTITUTION:The ghost removal signal is produced by passing through the video signal input to the input terminal A1 via the delay circuit A4 and the transversal filter A5. The transversal filter A5 has the delay line with a plurality of taps, and the most suited tap for the removal of ghost is selected among them and the gain of this tap is controlled to give processing to the output of the delay circuit A4. The video signal and the ghost removal signal are synthesized at the synthesizer A3 to obtain output at the output terminal A2.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5125780A JPS56147572A (en) | 1980-04-18 | 1980-04-18 | Ghost elimination device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5125780A JPS56147572A (en) | 1980-04-18 | 1980-04-18 | Ghost elimination device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS56147572A true JPS56147572A (en) | 1981-11-16 |
Family
ID=12881886
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5125780A Pending JPS56147572A (en) | 1980-04-18 | 1980-04-18 | Ghost elimination device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56147572A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61152174A (en) * | 1984-12-26 | 1986-07-10 | Toshiba Corp | Digital ghost eliminating device |
JPS62265871A (en) * | 1986-05-14 | 1987-11-18 | Matsushita Electric Ind Co Ltd | Ghost removal device |
JPH04249983A (en) * | 1991-02-28 | 1992-09-04 | Toshiba Corp | Digital processing ghost elimination device |
JPH04249982A (en) * | 1991-02-28 | 1992-09-04 | Toshiba Corp | Digital processing ghost elimination device |
-
1980
- 1980-04-18 JP JP5125780A patent/JPS56147572A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61152174A (en) * | 1984-12-26 | 1986-07-10 | Toshiba Corp | Digital ghost eliminating device |
JPS62265871A (en) * | 1986-05-14 | 1987-11-18 | Matsushita Electric Ind Co Ltd | Ghost removal device |
JPH04249983A (en) * | 1991-02-28 | 1992-09-04 | Toshiba Corp | Digital processing ghost elimination device |
JPH04249982A (en) * | 1991-02-28 | 1992-09-04 | Toshiba Corp | Digital processing ghost elimination device |
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