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. 30, 1983
Filed:
Feb. 12, 1979
Applicant:
Inventors:
Robert B Jarrett, Tempe, AZ (US);
Wilson D Pace, Tempe, AZ (US);
Assignee:
Motorola, Inc., Schaumburg, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K / ; H03K / ;
U.S. Cl.
CPC ...
3403 / ; 3403 / ; 3403 / ; 328151 ; 307353 ; 180170 ; 180179 ; 364426 ;
Abstract
A sample and hold circuit for an automotive speed control system is disclosed which includes a non-monotonic digital-to-analog converter suitable for fabrication as a highly dense monolithic circuit. The non-monotonic digital-to-analog converter precludes the occurrence of large positive errors in the analog output value, which might be caused by tolerance errors in the ratio of binary-weighted currents within the digital-to-analog converter, by including offsetting negative errors within the design of the digital-to-analog converter.