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:
Mar. 23, 1993
Filed:
Apr. 12, 1991
Applicant:
Inventors:
Stephen B Knuth, Mission Viejo, CA (US);
Oded Yossifor, Torrance, CA (US);
Kenneth R Core, Cypress, CA (US);
Assignee:
PhoneMate, Inc., Torrance, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04M / ; H04Q / ; H04B / ;
U.S. Cl.
CPC ...
379 61 ; 379 63 ; 379 58 ; 379 56 ; 455 341 ; 4551611 ; 4551651 ;
Abstract
A cordless telephone has an improved mechanism for scanning and selecting channels by adapting to the channel usage patterns of the local environment in which it is placed. This results in a prioritized list of channels that have the highest probability of being available, free from interference. By prescanning the channels during the idle time of the cordless telephone, power usage of the handset is minimized and quick acquisition of an available channel becomes possible.