Magnetic recording and reproducing device
Patent 4630143 Issued on December 16, 1986. Estimated Expiration Date: 
June 25, 2005. 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.
June 25, 2005. 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 3699527 Random access recording and/or playback system Segmented video recording with segment identification codes Index information recording method for picture information filing system Patent #: 4357638 InventorsApplicationNo. 06/748486 filed on 06/25/1985US Classes:360/72.2, Responsive to recorded address360/74.4Responsive to magnetic recorded signalsExaminersPrimary: Stellar, George G.Attorney, Agent or FirmInternational ClassesG11B 27/031 (20060101)G11B 15/02 (20060101) G11B 27/036 (20060101) G11B 27/10 (20060101) G11B 27/32 (20060101) G11B 20/20 (20060101) G11B 5/584 (20060101) G11B 5/48 (20060101) G11B 27/032 (20060101) AbstractA magnetic recording and reproducing device for recording information on the tape comprises an oscillation circuit for generating a reference clock, a position information generation circuit for generating position information, a recording head means, a reproducing head means, a means for controllably moving the magnetic tape and a central control circuit so that the device can record not only a primary information such as an audio signal but also a position information on the primary information. Such recording can be effected from any position on the tape such as immediately after an earlier recorded information (after-recording) by operating a simple input means such as a keyboard. | |
