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:
Dec. 31, 1985
Filed:
Nov. 15, 1982
Applicant:
Inventors:
Assignee:
Thomson-CSF Telephone, Colombes, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04M / ;
U.S. Cl.
CPC ...
179 / ; 179 / ; 179 / ; 179 77 ; 179 / ;
Abstract
The telephone circuit of the invention comprises a transmission circuit short-circuited during decimal numbering by an active circuit when the handset is lifted or during the emission of a decimal numbering digit, the line current supplying, through a voltage stabilizing circuit and a voltage regulation circuit, the microprocessor controlling the telephone circuit.