Digital control system and method for the synchronization of aud

Details Digital control system and method for the synchronization of aud Digital control system and method for the synchronization of aud

1974-03-13

1976-09-07

Martin, John C.

Dynamic magnetic information storage or retrieval

Recorder control of an external device

Slide or movie projectors

352 12, 352 15, G03B 3100, G11B 3100

Patent

active

039797740

ABSTRACT:
Disclosed is a digital control system and method for synchronizing audio-visual equipment for the presentation of film slides with corresponding sound narrations. As the film passes through conventional projecting equipment each slide receives a sequential address. Simultaneously, the sound narrations, passing through the audio equipment on a continuous media, receive identification numbers from a pulse generating means indicative of the outset of each narration, which numbers are stored in the system correlated with the proper sequential address. Means are further provided for skipping ahead or back to desired film slides rapidly, without loss of synchronization between the audio and visual portions of the program.

REFERENCES:
patent: 3854010 (1974-12-01), Yoshino et al.
patent: 3859458 (1975-01-01), Takezawa et al.
patent: 3865973 (1975-02-01), Masuda et al.

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