Descriptions for G11B and notes/indexes are displayed on this screen.
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INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER (recording measured values in a way that does not require playback through a transducer G01D 9/00; recording or playback apparatus using mechanically marked tape, e g punched paper tape, or using unit records, e g punched or magnetically marked cards G06K; transferring data from one type of record carrier to another G06K 1/18; circuits for coupling output of reproducer to radio receiver H04B 1/20; gramophone pick-ups or like acoustic electromechanical transducers or circuits therefor H04R)
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Note(s)
This subclass covers:[7]recording or playback of information by relative movement between a record track and a transducer, the transducer directly producing, or being directly actuated by, modulation in the track being recorded or played-back, and the extent of modulation corresponding to the signal being recorded or played-back;apparatus and machines for recording or playback, and parts thereof, such as heads;record carriers for use with such apparatus and machines;associated working of other apparatus with such apparatus and machines. In this subclass, the following terms or expressions are used with the meanings indicated:"record carrier" means a body, such as a cylinder, disc, card, tape, or wire, capable of permanently holding information, which can be read-off by a sensing element movable relatively to the record carrier;"head" includes any means for converting sinusoidal or non-sinusoidal electric wave-forms into variations of the physical condition of at least the adjacent surface of the record carrier, or vice versa;"near-field interaction" means a very short distance interaction using scanning-probe techniques, e.g. quasi- contact or evanescent contact between head and record carrier. Attention is drawn to the Notes following the titles of class B81 and subclass B81B relating to "microstructural devices" and "microstructural systems".
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Subclass indexes
RECORDING OF ONE TYPE ASSOCIATED WITH REPRODUCING MEANS OF THE SAME TYPE | Of mechanical type | 3/00 | Of magnetical type | 5/00 | Of optical type | 7/00 | Of another type | 9/00 | RECORDING OF ONE TYPE AND ASSOCIATED REPRODUCING MEANS OF DIFFERENT TYPE | 11/00 | SIMULTANEOUS OR SELECTIVE RECORDING OF DIFFERENT TYPES; ASSOCIATED SIMULTANEOUS OR SELECTIVE REPRODUCING MEANS | 13/00 | SIGNAL PROCESSING NOT SPECIFIC TO THE METHOD OF RECORDING OR REPRODUCING | 20/00 | APPARATUS CHARACTERISED BY THE SHAPE OF THE RECORD CARRIER | 25/00 | DETAILS; GENERAL FEATURES | Starting, stopping, driving | 15/00, 19/00 | Guiding | 17/00 | HEADS; RECORD CARRIERS | 21/00; 23/00 | ASSOCIATED WORKING WITH OTHER APPARATUS | 31/00 | EDITING, INDEXING, SYNCHRONISING, MONITORING | 27/00 | MANUFACTURING | 3/70, 5/84, 7/26 | OTHER CONSTRUCTIONAL PARTS, DETAILS OR ACCESSORIES | 33/00 |
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