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:
May. 01, 1984
Filed:
Dec. 30, 1980
Applicant:
Inventor:
Charles A Backof, Jr, Hoffman Estates, IL (US);
Assignee:
Motorola, Inc., Schaumburg, IL (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K / ;
U.S. Cl.
CPC ...
375 32 ; 332 / ; 381 31 ;
Abstract
Voice signals subjected to differential modulation such as CVSD modulation are made more intelligible by differentiating an electrical analog of the voice signal, clipping peaks of the differentiated signal, integrating the clipped differentiated signal, and applying the integrated signal to a differential modulator such as a CVSD modulator.