Disc memory apparatus
Patent 4357635 Issued on November 2, 1982. Estimated Expiration Date: 
March 17, 2000. 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.
March 17, 2000. 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 2901737 3653062 3803632 InventorAssigneeApplicationNo. 06/130899 filed on 03/17/1980US Classes:360/51, Data clocking360/48, Data in specific format360/73.03, Rotary carrier369/47.28, For phase, timing, or rate processing369/47.48By synchronous signalExaminersPrimary: Canney, Vincent P.Attorney, Agent or FirmInternational ClassesG11B 20/10 (20060101)G11B 5/012 (20060101) G11B 19/24 (20060101) Foreign Application Priority Data1979-03-20 JPAbstractData is selectively recorded on a plurality of circumferential, radially spaced on a rotating disc (32). Either the rotational speed of the disc (32) or a frequency of write clock pulses is varied so that the data density is substantially the same on all of the tracks. | |
