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:
Feb. 19, 2008
Filed:
Aug. 19, 2003
George J. Miao, Marlboro, NJ (US);
George J. Miao, Marlboro, NJ (US);
Other;
Abstract
A multiuser direct sequence spread spectrum (DSSS) Orthogonal Frequency Division Multiplexing (OFDM) multiband of Ultra Wideband (UWB) communication system for short-distance wireless broadband communications is disclosed for indoor environment operations. Eleven frequency bands are employed, with each of the frequency bands having 650 MHz bandwidths. A 1024-point IFFT and FFT with 1,000 subcarriers are used to carry data and pilots within each of the frequency bands. The multiuser DSSS-OFDM multiband of the UWB communication system can transmit N different users at the same time by using a unique spreading sequence for each of the N different users. A QPSK modulation is used for a different data rate with scalability. The maximum transmitting data rate of the UWB communication system can achieve about 5.541 Gbps.