JPS5644270A - Television receiver - Google Patents

Television receiver

Info

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
Application number
JP12056479A
Other languages
Japanese (ja)
Other versions
JPS6158070B2 (en
Inventor
Katsuo Isono
Susumu Akazawa
Hidehiko Isowa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sony Corp
Original Assignee
Sony Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sony Corp filed Critical Sony Corp
Priority to JP12056479A priority Critical patent/JPS5644270A/en
Publication of JPS5644270A publication Critical patent/JPS5644270A/en
Publication of JPS6158070B2 publication Critical patent/JPS6158070B2/ja
Granted legal-status Critical Current

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

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.
JP12056479A 1979-09-19 1979-09-19 Television receiver Granted JPS5644270A (en)

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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0183514A2 (en) * 1984-11-30 1986-06-04 Rca Licensing Corporation Dynamic focus circuit

Cited By (1)

* Cited by examiner, † Cited by third party
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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