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:
Jan. 29, 2002
Filed:
Dec. 18, 1998
Linmei Shu, Marion, IN (US);
Thomson Licensing S.A., Boulogne, FR;
Abstract
A telephone line measurement circuit is disclosed for detecting a variation of a characteristic between a first and a second leads of a telephone line. The circuit comprises a first circuit having a first and a second inputs and an output. The circuit also has a second circuit having a first and a second inputs and an output. The first input of the first circuit and the second input of the second circuit are coupled to the first lead of the telephone line and the second input of the first circuit and the first input of the second circuit are coupled to the second lead of the telephone line. The outputs of the first and the second circuits are then coupled together to provide an output for the measurement circuit.