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. 17, 2002
Filed:
Oct. 13, 1998
Haruhiro Shiino, Tokyo, JP;
Oki Electric Industry Co., Ltd., Tokyo, JP;
Abstract
A spread-spectrum communication apparatus transmits and receives packets of data preceded by reference signals used in demodulating the packets of data. A control unit in the communication apparatus estimates channel conditions, and varies the length of the transmitted packets, hence the intervals between reference signals, using longer packets under better channel conditions. Configuration information indicating the packet length may also be transmitted. Excessive overhead can thus be avoided without impairing the accuracy of channel estimates used in demodulating the received data.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile