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. 05, 1988
Filed:
Nov. 21, 1985
Applicant:
Inventors:
Assignee:
Fairchild Semiconductor Corporation, Cupertino, CA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ; H04N / ;
U.S. Cl.
CPC ...
364480 ; 358 10 ; 358139 ; 364579 ;
Abstract
A digital test system for generating a test signal in the form of an amplitude and/or phase modulated sinusoidal signal at a given carrier frequency is disclosed. Arbitrary amplitude and phase modulation functions may be selected and are provided to the system in the form of digitally encoded data streams. The system does not require a digital multiplier. A signal in the form of an unmodulated carrier signal may also be generated.