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:
Jun. 22, 1982
Filed:
Nov. 05, 1979
Applicant:
Inventor:
Jacob de Vries, Allenwinden, CH;
Assignee:
LGZ Landis & Gyr Zug AG, Zug, CH;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K / ;
U.S. Cl.
CPC ...
332 / ; 307265 ; 328 58 ; 375 22 ;
Abstract
A variable pulse width generator generates a periodically recurring and variable mark-to-space ratio waveform, so that the ratio of the difference between the space and mark durations to the sum of the space and mark durations is proportional to a selectable voltage, and substantially independent of any resistor values used in the circuit.