Facsimile and static presentation processing – Facsimile – Recording apparatus
Patent
1981-07-08
1983-09-13
Cardillo, Jr., Raymond F.
Facsimile and static presentation processing
Facsimile
Recording apparatus
369 13, 369 43, 369109, 369112, 369126, 369275, 369276, 360 77, H04N 576
Patent
active
044045999
ABSTRACT:
An information signal recording system records an information signal, a first and a second reference signals for tracking control, and a third reference signal for switching the first and second reference signals at the time of reproduction on a recording disc. The first and second reference signals of different frequencies are alternately recorded on intermediate parts of the recording disc, at positions between centerlines of adjacent information signal tracks. The third reference signal of a still different frequency is recorded at a predetermined position on every information signal track. A reproducing system reproduces the information signal together with the third reference, and the first and second reference signals by a single reproducing element. A tracking control signal is produced from the first and second reference signals switched by the third reference signal separated from the reproduced information signal.
REFERENCES:
patent: 3263031 (1966-07-01), Welsh
patent: 3396243 (1968-08-01), McDaniel
patent: 3438050 (1969-04-01), Aschenbrenner et al.
patent: 3479664 (1969-11-01), Stuart-Williams et al.
patent: 3501586 (1970-03-01), Russell
patent: 3593331 (1971-07-01), Connell
patent: 3624284 (1971-11-01), Russell
patent: 3673412 (1972-06-01), Olson
patent: 3761611 (1973-09-01), Nakamura
patent: 3829892 (1974-08-01), Naguhiro et al.
patent: 3864740 (1975-02-01), Sordello et al.
patent: 3919697 (1976-06-01), Walker
patent: 4056832 (1977-11-01), de Boer et al.
patent: 4123788 (1978-10-01), Kruger
patent: 4190869 (1980-02-01), Ota
patent: 4197562 (1980-04-01), Kikuya
patent: 4306255 (1981-12-01), Misaki
patent: 4321621 (1982-03-01), Kinjo et al.
patent: 4322755 (1982-03-01), Kosaka
patent: 4322836 (1982-03-01), Kinjo et al.
Malta et al, "Track Servo System Compensating Pattern Defects", 1/80, pp. 3269-3270, IBM Tech. Disc. Bulletin, vol. 22, No. 8A.
Tsilibes, "Transducer Position Sensor", 10/61, pp. 24-25, IBM Tech. Disc. Bulletin, vol. 4, No. 5.
Bush et al, "Magnetic Head Position Sensing,", 10/73, pp. 1379-1380, IBM Tech. Disc. Bulletin, vol. 16, No. 5.
Kinjo Hisao
Ozawa Keiji
Bernat Louis
Cardillo, Jr. Raymond F.
Victor Company of Japan Ltd.
LandOfFree
Laser recording information and pilot signals for tracking on a does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Laser recording information and pilot signals for tracking on a , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Laser recording information and pilot signals for tracking on a will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1733283