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:
Sep. 24, 2002
Filed:
Jul. 07, 1999
Tatsuru Nakagaki, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A wireless communication system having base station equipment which forms a wireless zone and base station control equipment which performs channel control of calls occurred in the radio stations located in the wireless zone, in cooperation with a switching center. The base station equipment extracts a specific speech signal that has control information included in speech signals generated by a variable rate codec. The base station equipment disassembles the speech signals and the control information into individual transmission units and transmits the transmission units to the radio base station. The base station radio control equipment outputs or accepts control information including identification information, and performs delivery of the control information between the radio station and the switching center.