Interactive plural head laser disc system
Patent 4701896 Issued on October 20, 1987. Estimated Expiration Date: 
October 20, 2004. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
October 20, 2004. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 2457668 3229269 3774172 Optical device for the recording and reading of data media and optical memory system incorporating such a device Quick disconnect pack Patent #: 4391543 InventorsAssigneeApplicationNo. 06/642505 filed on 08/20/1984US Classes:720/615Multiple media loadingExaminersPrimary: McElheny, Donald Jr.Attorney, Agent or FirmInternational ClassesG11B 27/30 (20060101)G11B 27/10 (20060101) G11B 17/028 (20060101) G11B 17/26 (20060101) G11B 7/08 (20060101) G11B 19/20 (20060101) G11B 25/04 (20060101) G11B 17/02 (20060101) G11B 7/00 (20060101) G11B 7/0037 (20060101) AbstractAn interactive plural head laser disc system is disclosed characterized by use of plural pairs of heads installed on both sides of one or more laser discs which heads may be accessed by either multi or single users to independently and/or simultaneously access a single disc or plurality of discs. The plural heads are disposed inside a housing having a plurality of slots therein, each slot being configured to receive and permit mounting of a laser disc therein.Other References
Field of SearchSpiral or helical track | |
