Method of masking data on a storage medium
November 22, 2014. 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 Re34475 Method, apparatus and record carrier body for optically writing information Optical recording and/or reproducing device Apparatus for controlling a recording operation of an optical information recording apparatus Erasable optical data storage medium Method of partitioning the memory in a CD-player in order to reduce access time to the disk Unit and disc having a relatively rough surface and method of producing Recording method and apparatus Optical recording medium and manufacturing method thereof Optical information recording medium and recording method InventorApplicationNo. 343637 filed on 11/22/1994US Classes:369/30.04, Using recorded information indicative of storage medium contents369/84DUPLICATION OR COPYING (E.G., RERECORDING)ExaminersPrimary: Neyzari, AliAttorney, Agent or FirmInternational ClassG11B 017/22AbstractA method of masking data on a storage medium for selective playback upon demand or for transcription to another medium. The method comprising the steps of (a) determining the position of the start location on the storage medium, (b) determining the position of the stop location on the storage medium, (c) positioning at least one data track on the storage medium between the start location and the stop location such that the data track has, adjacent thereto, enough space or time for accepting a concealed data track, and (d) impressing data on the storage medium for generating the concealed track having a hidden recording area such that the hidden recording area contains concealed data which can be accessed upon demand for transcription to another medium or for playback. The present invention can be adapted for use with different storage media such as, for example, a compact disk, a read-only memory compact disk, a mini-disk, a photo compact disk or the like. More particularly, the step of impressing data on the storage medium for generating the concealed track further comprises the step of generating the concealed track by identifying a position within the gap relative to either location or time for working with a player or transcriber and impressing the concealed track on the storage medium at the identified position.Other References
Field of SearchRecordingServo system operation related to disc structure information format Radiation beam modified or controlling (e.g., photosensitve, optical track) Erasable, reversible or re-recordable Laminated or unified discrete layers Specified material Radiation beam modification of or by storage medium Controlling the record Address coding Locating specific areas Responsive to recorded address | |
