Apparatus for scanning variable area optical sound tracks by par

Details Apparatus for scanning variable area optical sound tracks by par Apparatus for scanning variable area optical sound tracks by par

1980-05-28

1982-10-19

Cardillo, Jr., Raymond F.

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

369124, 369125, G11B 700, G11B 712

Patent

active

043553834

ABSTRACT:
Apparatus for scanning variable area optical sound tracks wherein a plurality of discrete photo sensors examine small fractional portions of the sound track width. Selection of the number of sensors in relation to photographic grain dimensions results in converting annoying quantizing noise to more tolerable random noise while using a practical number of sensors. Electronic processing of the sensors' outputs reduces impulse noise from dirt and scratches.

REFERENCES:
patent: 1921483 (1933-08-01), Rouse
patent: 2871755 (1959-02-01), Pierre
patent: 3848095 (1974-11-01), Wohlmut et al.
patent: 3949161 (1976-04-01), Fujishima et al.
patent: 4124784 (1978-11-01), Johnson et al.
Bankowski et al., "CCD Scanner Having Simultaneous Readout, etc.", IBM Tech. Disc. Bulletin, vol. 16, No. 1, 7/73, pp. 173-174.
Reticon C Series Solid State Linear Scanners, Product Brochure of Reticon Corp. of Sunnyvale, Calif., Copyright 1976.

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