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.
Patent No.:
Date of Patent:
Jan. 20, 1976
Filed:
Jan. 02, 1974
Applicant:
Inventors:
Uno Randmere, Victor, NY (US);
Walter A Halbig, Webster, NY (US);
Assignee:
Stromberg-Carlson Corporation, Rochester, NY (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04M / ;
U.S. Cl.
CPC ...
179 / ;
Abstract
A control circuit for a subscriber station in a video telephone system includes detectors, gates, and toggles responsive to the various local and incoming supervisory signals to control operation of the local audio and video receivers and transmitters, and the ringers for selectively announcing incoming ordinary and video calls.