Adaptive stylus kicker using disc track and disc sector informat

Details Adaptive stylus kicker using disc track and disc sector informat Adaptive stylus kicker using disc track and disc sector informat

1979-10-18

1982-05-18

Psitos, Aristotelis M.

Dynamic information storage or retrieval

Information location or remote operator actuated control

Selective addressing of storage medium

369 33, 369 41, 369126, G11B 1722, G11B 900

Patent

active

043308791

ABSTRACT:
An adaptive video disc record stylus kicker system for inducing limited stylus translations radially across the disc record. Control circuitry responsive to disc track and disc angular sector identification signals automatically calibrates the kicker activation signals to produce a desired kicker induced stylus translation. A microprocessor establishes a table containing kicker control signals for driving the kicker in each sector of the disc. For a given kicker induced stylus translation, the error is calculated between the actual stylus translation and the programmed stylus translation and the control signal for the respective sector is adjusted accordingly. Subsequently the control signals for each of the other sectors are altered proportional to the adjustment made to the particular control signal in accordance with a correlation function.

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patent: 4159480 (1979-06-01), Tachi
patent: 4167759 (1979-09-01), Tachi
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patent: 4183059 (1980-01-01), Palmer
VIR II System-Kim; IEE Transactions on Consumer Electronics, vol. CE-24, No. 3, Aug. 1978.

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