JPS54143212A - Pickup cleaner - Google Patents

Pickup cleaner

Info

Publication number
JPS54143212A
JPS54143212A JP5166578A JP5166578A JPS54143212A JP S54143212 A JPS54143212 A JP S54143212A JP 5166578 A JP5166578 A JP 5166578A JP 5166578 A JP5166578 A JP 5166578A JP S54143212 A JPS54143212 A JP S54143212A
Authority
JP
Japan
Prior art keywords
stylus
amplifier
pickup
oscillation
circuit
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
JP5166578A
Other languages
Japanese (ja)
Other versions
JPS6245602B2 (en
Inventor
Kenji Sato
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP5166578A priority Critical patent/JPS54143212A/en
Publication of JPS54143212A publication Critical patent/JPS54143212A/en
Publication of JPS6245602B2 publication Critical patent/JPS6245602B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To clean the pickup of a video disc player without using any brush or the like and without damaging its stylus by changing over the output characteristics of the amplifier provided to the loop of the time axis varying means of the pickup to an oscillation output thereby causing the stylus of the pickup to vibrate.
CONSTITUTION: At the ordinary operation, -V is applied to changeover input terminal 54 to turn OFF the transistors 50, 57 which constitute a changeover circuit and an amplifier 48 is operated as an amplifier. To clean the stylus, +V is applied to the input terminal 54 to turn ON the transistors 50 and 57. As a result, the oscillation circuit of astable multi type is formed by the amplifier 48 and its feedback circuit. In this case, the approximate of oscillation frequency is determined by the time constant by a capacitor 51 and resistance 49. This oscillation output is applied to the stylus to vibrate the stylus, whereby the dust, dirt, etc. having accumulated on the stylus are removed through vibration.
COPYRIGHT: (C)1979,JPO&Japio
JP5166578A 1978-04-28 1978-04-28 Pickup cleaner Granted JPS54143212A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5166578A JPS54143212A (en) 1978-04-28 1978-04-28 Pickup cleaner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5166578A JPS54143212A (en) 1978-04-28 1978-04-28 Pickup cleaner

Publications (2)

Publication Number Publication Date
JPS54143212A true JPS54143212A (en) 1979-11-08
JPS6245602B2 JPS6245602B2 (en) 1987-09-28

Family

ID=12893167

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5166578A Granted JPS54143212A (en) 1978-04-28 1978-04-28 Pickup cleaner

Country Status (1)

Country Link
JP (1) JPS54143212A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4621274A (en) * 1983-09-30 1986-11-04 Ricoh Company, Ltd. Method of cleaning the record head of electrostatic image recording system of transfer type
US6625110B2 (en) * 2000-12-28 2003-09-23 Lg Electronics Inc. Contamination preventing device of optical head for near field recording

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6456197U (en) * 1987-10-02 1989-04-07

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53118102A (en) * 1977-03-25 1978-10-16 Victor Co Of Japan Ltd Cleaner of reproducing stylus
JPS586202A (en) * 1981-07-06 1983-01-13 Nitto Electric Ind Co Ltd Connecting structure for liquid separating tube and connector

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53118102A (en) * 1977-03-25 1978-10-16 Victor Co Of Japan Ltd Cleaner of reproducing stylus
JPS586202A (en) * 1981-07-06 1983-01-13 Nitto Electric Ind Co Ltd Connecting structure for liquid separating tube and connector

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4621274A (en) * 1983-09-30 1986-11-04 Ricoh Company, Ltd. Method of cleaning the record head of electrostatic image recording system of transfer type
US6625110B2 (en) * 2000-12-28 2003-09-23 Lg Electronics Inc. Contamination preventing device of optical head for near field recording

Also Published As

Publication number Publication date
JPS6245602B2 (en) 1987-09-28

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