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. 11, 1995
Filed:
Dec. 31, 1992
Applicant:
Inventors:
Kun Lin, Tucson, AZ (US);
George J Radda, Tucson, AZ (US);
Assignee:
Monolith Technologies Corporation, Tucson, AZ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03M / ;
U.S. Cl.
CPC ...
341144 ; 341152 ;
Abstract
A digital-to-analog converter (DAC) for generating a pulse width modulated (PWM) signal. A dual-DAC implementation includes a read-only memory (ROM) containing a plurality of addressable output signals, respective shift left and shift right registers configured to simultaneously receive an output signal from the ROM, and respective first and second DACs are configured to receive the left shifted output and right shifted output, respectively, from the shift left and shift right registers. Both DAC outputs are applied to an analog summer which generates an output signal indicative of the sum of the outputs from the two DACs.