AU580793B2 - Tracking error detector for optical head - Google Patents

Tracking error detector for optical head

Info

Publication number
AU580793B2
AU580793B2 AU45491/85A AU4549185A AU580793B2 AU 580793 B2 AU580793 B2 AU 580793B2 AU 45491/85 A AU45491/85 A AU 45491/85A AU 4549185 A AU4549185 A AU 4549185A AU 580793 B2 AU580793 B2 AU 580793B2
Authority
AU
Australia
Prior art keywords
optical head
tracking error
error detector
detector
tracking
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.)
Ceased
Application number
AU45491/85A
Other versions
AU4549185A (en
Inventor
Atsushi Fukumoto
Kiyoshi Ohsato
Michio Oka
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
Priority claimed from JP59014576A external-priority patent/JPS59155389A/en
Application filed by Sony Corp filed Critical Sony Corp
Publication of AU4549185A publication Critical patent/AU4549185A/en
Application granted granted Critical
Publication of AU580793B2 publication Critical patent/AU580793B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

AU45491/85A 1984-01-31 1985-07-11 Tracking error detector for optical head Ceased AU580793B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP59014576A JPS59155389A (en) 1983-01-31 1984-01-31 Manufacture of 7-(imidazol-2-yl)amino-3-(1h-1,2,3-triazol-4-yl)thiomethylceph-3-em-4-carboxylic acid
JP59-145768 1984-07-13

Publications (2)

Publication Number Publication Date
AU4549185A AU4549185A (en) 1986-02-10
AU580793B2 true AU580793B2 (en) 1989-02-02

Family

ID=11864985

Family Applications (1)

Application Number Title Priority Date Filing Date
AU45491/85A Ceased AU580793B2 (en) 1984-01-31 1985-07-11 Tracking error detector for optical head

Country Status (1)

Country Link
AU (1) AU580793B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8501665A (en) * 1985-06-10 1987-01-02 Philips Nv OPTICAL SCANNER WITH POSITION AND POSITION DETECTION SYSTEM FOR AN ELECTROMAGNETICALLY BEARING OBJECTIVE.

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4502134A (en) * 1981-07-16 1985-02-26 Mitsubishi Denki Kabushiki Kaisha Optical disc signal reproducing system with tilt immunization

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4502134A (en) * 1981-07-16 1985-02-26 Mitsubishi Denki Kabushiki Kaisha Optical disc signal reproducing system with tilt immunization

Also Published As

Publication number Publication date
AU4549185A (en) 1986-02-10

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