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:
Jun. 10, 2008
Filed:
Apr. 20, 2004
Juinn-horng Deng, Longtan Township, Taoyuan County, TW;
Ta-sung Lee, Hsinchu, TW;
Fu-yen Kuo, Hsinchu, TW;
Juinn-Horng Deng, Longtan Township, Taoyuan County, TW;
Ta-Sung Lee, Hsinchu, TW;
Fu-Yen Kuo, Hsinchu, TW;
Qisda Corporation, Taoyuan, TW;
Abstract
The present invention provides a communication system, signal pre-processing apparatus and signal receiving apparatus thereof. The signal pre-processing apparatus is used for pre-processing signals before they are transmitted by a plurality of antennas. The apparatus includes a serial-to-parallel converter, L compensation processors and L beam formation processors. First of all, the serial-to-parallel converter converts a digital signal into N divided signals. Each of the compensation processors pre-compensates the N divided signals and outputs a compensated signal. Each of the beam formation processors intensifies the compensated signal and outputs an intensified signal. Each of the antennas combines L intensified signals into a particular signal, and meanwhile, upconverts the particular signal into a RF (radio-frequency) signal for transmission.