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. 25, 2013
Filed:
Mar. 10, 2009
Chieh-fu Chang, Taipei, TW;
Wan-hsin Hsieh, Dayuan Township, Taoyuan County, TW;
Ming-seng Kao, Hsinchu, TW;
Chieh-Fu Chang, Taipei, TW;
Wan-Hsin Hsieh, Dayuan Township, Taoyuan County, TW;
Ming-Seng Kao, Hsinchu, TW;
National Applied Research Laboratories, Taipei, TW;
Abstract
A wireless communication method for transmitting information to the designated region with the boundary defined by the sharp cutoff is provided. Receivers outside the designated region are excluded from retrieving the encoded information. The boundary of designated region is adjustable. The wireless communication method can be applied to clearly defining the accepted region and rejection region in satellite communications. The wireless communication method includes steps of providing an information; encoding the information into an encoded data regarding a designated bit-energy-to-noise-ratio; transmitting the encoded data to form a virtual antenna radiation pattern covering a designated region with boundary defined by the sharp cutoff based on the designated bit-energy-to-noise-ratio; receiving the encoded data; and decoding the encoded data into the original information only when receivers within the designated region with bit-energy-to-noise-ratio no less than the designated bit-energy-to-noise-ratio. The critical feature of the method is clarified by experiments on the communication satellite ST-1.