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. 13, 1994
Filed:
Apr. 08, 1994
Applicant:
Inventor:
Dennis R McCarthy, Syracuse, NY (US);
Assignee:
Thomson Consumer Electronics, Inc., Indianapolis, IN (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04M / ; H04Q / ; H04B / ;
U.S. Cl.
CPC ...
379 63 ; 379 58 ; 379 61 ; 379 62 ; 455 331 ; 455 332 ; 455 341 ; 455 671 ;
Abstract
The present invention relates to a cordless telephone unit having a handset and a base unit. The signal strength of a handset which is received by the base unit is examined to determine whether or not the handset is beyond a predetermined range from the base unit. If such determination of out-of-range is made, a warning signal is transmitted from the base unit to the handset and if the handset is not brought within range within a predetermined number of warning signals, a hang up is initiated wherein the handset is placed in an 'on' hook condition and the captured telephone line is released.