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:
Nov. 01, 1994
Filed:
Dec. 23, 1992
Craig A Lee, Boynton Beach, FL (US);
Thomas A Oberle, Boca Raton, FL (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
A method and apparatus eliminates an audible noise burst after reestablishment of an external timing signal in a radio base station (102). After a loss of the external timing signal, the base station (102) temporarily operates from an internal timing signal generator (226) to provide digital communications over a radio link (106) with a portable communication unit (120). After reestablishment of the external timing signal, the base station (102) detects (304) the presence of the signal, waits (306) for the signal to stabilize, and controls (312) the portable communication unit (120) to disable audio while switching (316) back to the external timing signal.