Dynamic information storage or retrieval – With servo positioning of transducer assembly over track...
Patent
1981-09-21
1983-10-04
Cardillo, Jr., Raymond F.
Dynamic information storage or retrieval
With servo positioning of transducer assembly over track...
358342, 369 32, 369126, G11B 2108, G11B 2110, H04N 576
Patent
active
044083122
ABSTRACT:
A rotary recording medium reproducing apparatus reproduces a rotary recording medium in which one and the other of first and second reference signals are alternately recorded every track turn between each track turn of a main information signal track. The reproducing apparatus comprises a reproducing transducer having a reproducing element for reproducing the main information signal and the first and second reference signals at both sides of the main information signal track from said rotary recording medium, where the reproducing transducer has a tracking control mechanism for controlling tracking of the reproducing element, a separation circuit for respectively separating the first and second reference signals from a signal reproduced by the reproducing transducer, a wave detection circuit for respectively wave-detecting the separated reference signals, a time constant circuit for eliminating an unwanted component of an output signal of the wave detection circuit and holding a required signal, a tracking control signal applying circuit for obtaining a tracking control signal from an output signal of the time constant circuit and applying the tracking control signal to the tracking control mechanism of the reproducing transducer, and an interrupting circuit provided at a stage before the time constant circuit, for interrupting transmission of the reproduced reference signals during a mode in which a tracking control operation is not performed.
REFERENCES:
patent: 3854015 (1974-12-01), Janssen
patent: 3911211 (1975-10-01), Rennick
patent: 4322748 (1982-03-01), Tatsuguchi
Japanese Abstracts of Patents vol. 4, No. 62, P-10, (544), May 9, 1980, p. 145P10.
Patents Abstracts of Japan, vol. 2, No. 143, Nov. 15, 1978, p. 8989E78.
Abe Ryozo
Kaneda Isami
Sakakibara Susumu
Sano Yasushi
Sugiyama Hiroyuki
Bernat Louis
Cardillo, Jr. Raymond F.
Victor Company of Japan Ltd.
LandOfFree
Rotary recording medium reproducing apparatus with a tracking co does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Rotary recording medium reproducing apparatus with a tracking co, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rotary recording medium reproducing apparatus with a tracking co will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-977246