JPS54148423A - Television receiver - Google Patents
Television receiverInfo
- Publication number
- JPS54148423A JPS54148423A JP5669278A JP5669278A JPS54148423A JP S54148423 A JPS54148423 A JP S54148423A JP 5669278 A JP5669278 A JP 5669278A JP 5669278 A JP5669278 A JP 5669278A JP S54148423 A JPS54148423 A JP S54148423A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- vertical
- deflecting
- rectangular wave
- wave type
- 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
- Details Of Television Scanning (AREA)
Abstract
PURPOSE:To lessen the deterioration of the picture quality as well as the occurrence of the moire by piling the rectangular wave type current which reverses every 1H- period onto the vertical deflecting current and then shifting the amplitude of the piled rectangular wave type current on the screen by + or -1/4 times as much as the scanning line space. CONSTITUTION:Synchronous isolator circuit 1 extracts the horizontal and vertical synchronous signals from the received composite video signals, supplies the horizontal synchronous signal to horizontal deflecting circuit 2, and sends the output of circuit 2 to horizontal deflecting yoke. On the other hand, vertical synchronus signal is supplied to vertical deflecting circuit 3, and the output is connected to vertical deflecting yoke to give the vertical scanning to the electron beam of picture tube 6. Here, the output of the circuit is amplified 5 via FF4 and then supplied to circuit 3, and the rectangular wave type current reversing every 1H-period is piled on the vertical deflecting current. This piled rectangular wave type current amplitude is set so that it may shift on the screen by + or -1/4 times as much as the scanning line space. As a result, the deterioration of the picture quality can be lessened with the reduced occurrence of the moire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5669278A JPS54148423A (en) | 1978-05-15 | 1978-05-15 | Television receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5669278A JPS54148423A (en) | 1978-05-15 | 1978-05-15 | Television receiver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS54148423A true JPS54148423A (en) | 1979-11-20 |
Family
ID=13034492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5669278A Pending JPS54148423A (en) | 1978-05-15 | 1978-05-15 | Television receiver |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS54148423A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05236290A (en) * | 1992-02-25 | 1993-09-10 | Matsushita Electric Ind Co Ltd | Moire cancel circuit |
| JPH05236291A (en) * | 1992-02-25 | 1993-09-10 | Matsushita Electric Ind Co Ltd | Moire cancel circuit |
| US5430502A (en) * | 1992-02-25 | 1995-07-04 | Matsushita Electric Industrial Co., Ltd. | Apparatus for eliminating moire pattern effects resulting from the use of different display resolution with a fixed size shadow mask |
| US5440353A (en) * | 1992-02-25 | 1995-08-08 | Matsushita Electric Industrial Co., Ltd. | Display monitor including moire cancellation circuit |
-
1978
- 1978-05-15 JP JP5669278A patent/JPS54148423A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05236290A (en) * | 1992-02-25 | 1993-09-10 | Matsushita Electric Ind Co Ltd | Moire cancel circuit |
| JPH05236291A (en) * | 1992-02-25 | 1993-09-10 | Matsushita Electric Ind Co Ltd | Moire cancel circuit |
| US5430502A (en) * | 1992-02-25 | 1995-07-04 | Matsushita Electric Industrial Co., Ltd. | Apparatus for eliminating moire pattern effects resulting from the use of different display resolution with a fixed size shadow mask |
| US5440353A (en) * | 1992-02-25 | 1995-08-08 | Matsushita Electric Industrial Co., Ltd. | Display monitor including moire cancellation circuit |
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