Dynamic information storage or retrieval – Information location or remote operator actuated control – Selective addressing of storage medium
Patent
1980-06-27
1982-05-18
Konick, Bernard
Dynamic information storage or retrieval
Information location or remote operator actuated control
Selective addressing of storage medium
250201, 369 33, 369 44, H04N 584, G11B 700
Patent
active
043308805
ABSTRACT:
An optical read apparatus for a disc-shaped record carrier. The read apparatus comprises an optical read unit which includes a deflection element for controlling the radial position of the scanning spot, for which purpose said deflection element is included in a closed servo control loop. In order to enable a desired program section on the record carrier to be located rapidly, the read unit can be moved in the radial direction. During this movement of the read unit the servo control loop is rendered inoperative each time after the deflection element has reached a preset maximum deflection, after which this deflection element is reset rapidly and the servo control loop is rendered operative again. Thus it is achieved that image reproduction is also maintained during the rapid search for a desired program section.
REFERENCES:
patent: Re29963 (1979-04-01), Janssen
patent: 3854015 (1974-12-01), Janssen
patent: 4037252 (1977-07-01), Janssen
patent: 4142209 (1979-02-01), Hedlund et al.
patent: 4236232 (1980-11-01), Jansen et al.
Briody Thomas A.
Konick Bernard
Mayer Robert T.
McElheny Jr. Donald
Tamoshunas Algy
LandOfFree
Apparatus for optically reading a disc-shaped record carrier, in does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus for optically reading a disc-shaped record carrier, in, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for optically reading a disc-shaped record carrier, in will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-489763