JPS5644270A - Television receiver - Google Patents
Television receiverInfo
- Publication number
- JPS5644270A JPS5644270A JP12056479A JP12056479A JPS5644270A JP S5644270 A JPS5644270 A JP S5644270A JP 12056479 A JP12056479 A JP 12056479A JP 12056479 A JP12056479 A JP 12056479A JP S5644270 A JPS5644270 A JP S5644270A
- Authority
- JP
- Japan
- Prior art keywords
- grid
- anode
- voltage
- resistance
- focus
- 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N3/00—Scanning details of television systems; Combination thereof with generation of supply voltages
- H04N3/10—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical
- H04N3/16—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical by deflecting electron beam in cathode-ray tube, e.g. scanning corrections
- H04N3/26—Modifications of scanning arrangements to improve focusing
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Details Of Television Scanning (AREA)
Abstract
PURPOSE:To eliminate slip of the focus point, by connecting a resistance so that time constants dependent upon floating capacities between the anode of the receiving tube and the fourth grid and between the fourth grid and the earth may be equal to each other in the television receiver. CONSTITUTION:If the time constant dependent upon floating capacity Ca between anode pointer 31 of receiving tube 30 and the fourth grid 34 and resistance Ra is made equal to the time constant dependent upon floating capacity Ce between the fourth grid 34 and the earth and resistance Re, focus voltage Ef follows fluctuation of anode voltage Ea and changes at a fixed ratio to prevent slip of the focus point even if anode voltage Ea is fluctuated. Further, voltage Eb for dynamic focus is given at a fixed level without distortion.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12056479A JPS5644270A (en) | 1979-09-19 | 1979-09-19 | Television receiver |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12056479A JPS5644270A (en) | 1979-09-19 | 1979-09-19 | Television receiver |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5644270A true JPS5644270A (en) | 1981-04-23 |
JPS6158070B2 JPS6158070B2 (en) | 1986-12-10 |
Family
ID=14789421
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12056479A Granted JPS5644270A (en) | 1979-09-19 | 1979-09-19 | Television receiver |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5644270A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0183514A2 (en) * | 1984-11-30 | 1986-06-04 | Rca Licensing Corporation | Dynamic focus circuit |
-
1979
- 1979-09-19 JP JP12056479A patent/JPS5644270A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0183514A2 (en) * | 1984-11-30 | 1986-06-04 | Rca Licensing Corporation | Dynamic focus circuit |
Also Published As
Publication number | Publication date |
---|---|
JPS6158070B2 (en) | 1986-12-10 |
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