Subject matter under 275.1 wherein the recording layer permits information therein to be erased, reversibly recorded over or re-recorded over.
(1) Note. The term "re-recorded over is intended to include those conditions where the "old" data may still exist after the "new" data is recorded onto or over the "old" data, such as where the "new" data may be of a different nature such as a different playback frequency or different pit size.
SEE OR SEARCH THIS CLASS, SUBCLASS:
13+, where the recording medium storage uses a different recording technique than for retrieval (e.g., optical recording and magnetic reproduction), or simultaneous or alternative types of storage or retrieval occur etc.
SEE OR SEARCH CLASS
359, Optics: Systems (Including Communication) and Elements,
280+, and 484 for magneto-optical polarization. 360, Dynamic Magnetic Information Storage or Retrieval,
114, for magneto-optic storage wherein the intensity of the flux emanating from a record is determined by directing a beam of polarized light at the record and detecting the rotation of polarization caused by the flux.
365, Static Information Storage and Retrieval,
122, for information masking systems which use magneto-optical polarization; subclasses 185.01+ for floating gate memory storage (e.g., flash memory).
