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:
Jul. 25, 1978
Filed:
Jan. 05, 1977
Applicant:
Inventor:
Berton H Stephens, Los Altos, CA (US);
Assignee:
Dynatel Corporation, Sunnyvale, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
G01R / ; G01R / ;
U.S. Cl.
CPC ...
324 / ; 324 52 ;
Abstract
Method and apparatus utilizing constant current charging and discharging to determine the capacitance of a telephone cable or other circuit element. An output signal corresponding to the time required to increase the voltage from a first level to a second level and back to the first level corresponds to the capacitance of the element and, in the case of a cable, the length of the cable.
Stephens, Berton. (1978). System and method for determining capacitance and cable length in the (U.S. Patent No. 4103225). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4103225
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile