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:
Aug. 04, 1981
Filed:
Sep. 21, 1978
Applicant:
Inventors:
Christopher P Summers, London, GB;
Donald G Thompson, Wallington, GB;
Assignee:
U.S. Philips Corporation, New York, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
H03K / ; H03K / ; H03K / ;
U.S. Cl.
CPC ...
307255 ; 307243 ; 307259 ; 307262 ; 307D / ; 328118 ;
Abstract
An interface device for selectively accessing two internal signal paths of an integrated circuit through a single external connection pin. Each of the signal paths is provided with a bias voltage sensitive conduction device that permits conduction at a different externally provided bias voltage that inhibits current flow in the other conduction device. The different bias voltages are provided to the external connection pin through an external load resistor.