Title: Digital control system and method for the synchronization of audio-visual equipment

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.

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Inventors: Chen, Chun-Fu (North Canton, OH, US)
Hague, Jr., Duane O. (Fairborn, OH, US)

Application Number: 450897
Filing Date: 1974-03-13
Publication_date: 1976-09-07
Assignee: The University of Akron (Akron, OH)
Primary Class(es): 360/80 352/12, 352/15
Other Classes:
US Patent Ref:

3854010	Dec, 1974	Yoshino et al.	178/69.
3859458	Jan, 1975	Takezawa et al.	178/5.
3865973	Feb, 1975	Masuda et al.	178/69.

Other Refs:
Primary Examiner: Martin, John C.
Assistant Examiner:
Attorney: Hamilton, Renner & Kenner