Video disc player with compensation for stylus holder mechanical

Details Video disc player with compensation for stylus holder mechanical Video disc player with compensation for stylus holder mechanical

1982-05-26

1985-05-07

Cardillo, Jr., Raymond F.

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Electrical modification or sensing of storage medium

358340, 358342, 369 90, G11B 906, H04N 576

Patent

active

045162328

ABSTRACT:
A video disc player includes a pick-up cartridge in which the stylus is supported by a stylus holder that is mechanically resonant at a frequency within an audio frequency range. A pick-up converter coupled to the stylus provides a broad audio video output signal that is undesirably modulated due to the stylus holder mechanical resonance. The audio signal is demodulated to baseband and linearly combined with the un-demodulated broadband signal to provide a resultant audio output signal in which audio frequency noise components, due to the mechanical resonance of the resulus holder, are attenuated.

REFERENCES:
patent: 4204091 (1980-05-01), Ishigaki
patent: 4272786 (1981-06-01), Gibson
patent: 4309722 (1982-01-01), Palmer
patent: 4322746 (1982-03-01), Oguino
patent: 4353093 (1982-10-01), Durbin, Jr. et al.
patent: 4393489 (1983-07-01), Mehrotra

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