JPS5757091A - Correction device for linearity of horizontal deflection - Google Patents

Correction device for linearity of horizontal deflection

Info

Publication number
JPS5757091A
JPS5757091A JP13252780A JP13252780A JPS5757091A JP S5757091 A JPS5757091 A JP S5757091A JP 13252780 A JP13252780 A JP 13252780A JP 13252780 A JP13252780 A JP 13252780A JP S5757091 A JPS5757091 A JP S5757091A
Authority
JP
Japan
Prior art keywords
voltage
linearity
deflecting coil
amplifier
change
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
Application number
JP13252780A
Other languages
Japanese (ja)
Inventor
Kinya Magai
Kiyonori Tominaga
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 JP13252780A priority Critical patent/JPS5757091A/en
Publication of JPS5757091A publication Critical patent/JPS5757091A/en
Pending 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
    • H04N3/22—Circuits for controlling dimensions, shape or centering of picture on screen
    • H04N3/23—Distortion correction, e.g. for pincushion distortion correction, S-correction
    • H04N3/237—Distortion correction, e.g. for pincushion distortion correction, S-correction using passive elements, e.g. diodes

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Details Of Television Scanning (AREA)

Abstract

PURPOSE:To correct the linearity of horizontal deflection, by detecting asymmetric components of the current flowed to a main horizontal deflecting coil and by controlling the voltage to a horizontal deflecting coil for correction by this detection output. CONSTITUTION:A current im flowed to a main horizontal deflecting coil 2 is converted to a voltage Vm by a resistor 6, and this voltage Vm is applied to a rectifying circuit 12 through transistors Q1 and Q2 and a rectifying circuit 11 to obtain positive and negative peak values Vp and Vn of the voltage Vm. Next, a difference Vd between voltages Vp and Vn is obtained by differential amplifiers Q3 and Q4, and this differential voltage Vd is supplied to an amplifier 7 to control the gain of the amplifier, thereby controlling the voltage to a horizontal deflecting coil 3 for correction. Then, even if the inductance and the resistance of the coil 2 are changed to change the time constant, the linearity of horizontal deflection is not degraded because the differential voltage is changed to change the gain of the amplifier in accordance with said change.
JP13252780A 1980-09-24 1980-09-24 Correction device for linearity of horizontal deflection Pending JPS5757091A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13252780A JPS5757091A (en) 1980-09-24 1980-09-24 Correction device for linearity of horizontal deflection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13252780A JPS5757091A (en) 1980-09-24 1980-09-24 Correction device for linearity of horizontal deflection

Publications (1)

Publication Number Publication Date
JPS5757091A true JPS5757091A (en) 1982-04-06

Family

ID=15083371

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13252780A Pending JPS5757091A (en) 1980-09-24 1980-09-24 Correction device for linearity of horizontal deflection

Country Status (1)

Country Link
JP (1) JPS5757091A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5605294A (en) * 1993-03-15 1997-02-25 Toray Engineering Co., Ltd. Method for controlling the drive of a yarn winder, and the yarn winder thereof
US5762276A (en) * 1992-10-05 1998-06-09 Toray Engineering Co., Ltd. Yarn winding roller drive

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5762276A (en) * 1992-10-05 1998-06-09 Toray Engineering Co., Ltd. Yarn winding roller drive
US5605294A (en) * 1993-03-15 1997-02-25 Toray Engineering Co., Ltd. Method for controlling the drive of a yarn winder, and the yarn winder thereof
US5934601A (en) * 1993-03-15 1999-08-10 Toray Engineering Co., Ltd. Method for controlling the drive of a yarn winder, and the yarn winder thereof

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