Apparatus and method for transmitting ultrasonic wave

Details Apparatus and method for transmitting ultrasonic wave Apparatus and method for transmitting ultrasonic wave

1982-04-02

1984-08-21

Masinick, Michael A.

Facsimile and static presentation processing

Facsimile

Recording apparatus

H04N 928

Patent

active

044673620

ABSTRACT:
An ultrasonic wave transmission apparatus built in an image producing apparatus with an auto-focusing apparatus has features that transmission timings are determined by processing a vertical synchronization signal produced in the video camera and that transmission operations are made within blank times of the vertical synchronization signal thereby eliminating noise troubles in image reproduction made in the video camera.

REFERENCES:
patent: 4314750 (1982-02-01), Orban
patent: 4336987 (1982-06-01), Shenk
patent: 4347590 (1982-08-01), Heger
patent: 4362372 (1982-12-01), Keiser

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