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:
Apr. 05, 1977
Filed:
Mar. 04, 1974
Applicant:
Inventor:
Judson A Hofmann, Schaumburg, IL (US);
Assignee:
Zenith Radio Corporation, Chicago, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G08C / ; G05F / ;
U.S. Cl.
CPC ...
323-8 ; 323 19 ; 3402 / ; 3402 / ; 3403 / ; 3403 / ;
Abstract
An additional signal is supplied to an integrated circuit, including a voltage regulator and a plurality of electronic circuit elements, by impressing the signal on a terminal coupled to the voltage regulator. Circuitry in the integrated circuit recover the signal by detecting the voltage regulator response thereto. Method and apparatus with voltage regulators of shunt and series type are described.