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. 18, 2007
Filed:
Dec. 03, 2002
Kuo Hui LI, Hsinchu, TW;
Charles Huang, Hsinchu, TW;
Mao-ching Chiu, Hsinchu, TW;
Hung-kun Chen, Hsinchu, TW;
Chao-ming Chang, Hsinchu, TW;
Kuo Hui Li, Hsinchu, TW;
Charles Huang, Hsinchu, TW;
Mao-Ching Chiu, Hsinchu, TW;
Hung-Kun Chen, Hsinchu, TW;
Chao-Ming Chang, Hsinchu, TW;
Mediatek, Inc., Hsin-Chu, TW;
Abstract
A system and method for estimating channel characteristics in orthogonal frequency-division multiplexing (OFDM) systems with transmitter diversity is presented. The disclosed approach is compatible with the Institute of Electrical and Electronics Engineers (IEEE) 'Wireless Local Area Network (LAN) Medium Access Control (MAC) and Physical Layer (PHY) Specification.' In the disclosed system and method, an additional training symbol is transmitted during the data period. This provides additional information that may be used to more accurately estimate channel characteristics.