AU513008B2 - Monitoring apparatus and method for monitoring - Google Patents

Monitoring apparatus and method for monitoring

Info

Publication number
AU513008B2
AU513008B2 AU41541/78A AU4154178A AU513008B2 AU 513008 B2 AU513008 B2 AU 513008B2 AU 41541/78 A AU41541/78 A AU 41541/78A AU 4154178 A AU4154178 A AU 4154178A AU 513008 B2 AU513008 B2 AU 513008B2
Authority
AU
Australia
Prior art keywords
monitoring
monitoring apparatus
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.)
Expired
Application number
AU41541/78A
Other versions
AU4154178A (en
Inventor
J. S. and Dakin W. R Winslow
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.)
Discovision Associates
Original Assignee
MCA Discovision Inc
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 MCA Discovision Inc filed Critical MCA Discovision Inc
Priority to AU41541/78A priority Critical patent/AU513008B2/en
Publication of AU4154178A publication Critical patent/AU4154178A/en
Application granted granted Critical
Publication of AU513008B2 publication Critical patent/AU513008B2/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/125—Optical beam sources therefor, e.g. laser control circuitry specially adapted for optical storage devices; Modulators, e.g. means for controlling the size or intensity of optical spots or optical traces
    • G11B7/128—Modulators
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/36—Monitoring, i.e. supervising the progress of recording or reproducing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N17/00—Diagnosis, testing or measuring for television systems or their details
    • H04N17/06—Diagnosis, testing or measuring for television systems or their details for recorders
AU41541/78A 1978-11-13 1978-11-13 Monitoring apparatus and method for monitoring Expired AU513008B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU41541/78A AU513008B2 (en) 1978-11-13 1978-11-13 Monitoring apparatus and method for monitoring

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AU41541/78A AU513008B2 (en) 1978-11-13 1978-11-13 Monitoring apparatus and method for monitoring

Publications (2)

Publication Number Publication Date
AU4154178A AU4154178A (en) 1980-05-22
AU513008B2 true AU513008B2 (en) 1980-11-06

Family

ID=3728930

Family Applications (1)

Application Number Title Priority Date Filing Date
AU41541/78A Expired AU513008B2 (en) 1978-11-13 1978-11-13 Monitoring apparatus and method for monitoring

Country Status (1)

Country Link
AU (1) AU513008B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0404249A1 (en) * 1989-06-23 1990-12-27 Koninklijke Philips Electronics N.V. Method of and device for adjusting recording parameters
EP0404251A1 (en) * 1989-06-23 1990-12-27 Koninklijke Philips Electronics N.V. Recording device for recording an optically detectable information pattern on a record carrier
EP0438828A1 (en) * 1990-01-22 1991-07-31 Koninklijke Philips Electronics N.V. Method of and device for providing a record carrier with a pattern of areas having modified optical properties
US5303217A (en) * 1989-06-23 1994-04-12 U.S. Philips Corporation Optical recording device wherein recording beam intensity is set in accordance with an optimum value of the DC component of a recorded signal

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0782703B2 (en) * 1986-08-01 1995-09-06 パイオニア株式会社 Crosstalk noise measurement method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0404249A1 (en) * 1989-06-23 1990-12-27 Koninklijke Philips Electronics N.V. Method of and device for adjusting recording parameters
EP0404251A1 (en) * 1989-06-23 1990-12-27 Koninklijke Philips Electronics N.V. Recording device for recording an optically detectable information pattern on a record carrier
US5303217A (en) * 1989-06-23 1994-04-12 U.S. Philips Corporation Optical recording device wherein recording beam intensity is set in accordance with an optimum value of the DC component of a recorded signal
EP0438828A1 (en) * 1990-01-22 1991-07-31 Koninklijke Philips Electronics N.V. Method of and device for providing a record carrier with a pattern of areas having modified optical properties

Also Published As

Publication number Publication date
AU4154178A (en) 1980-05-22

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