The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Aug. 21, 1984

Filed:

Apr. 02, 1982
Applicant:
Inventors:

Wataru Hasegawa, Sakai, JP;

Katsuji Ishikawa, Higashiosaka, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
358227 ;
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.


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