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. 23, 2015
Filed:
Mar. 28, 2013
St-ericsson SA, Plan-les-Ouates, CH;
Naveen Jacob, Kottayam, IN;
Sajal Kumar Das, Bangalore, IN;
Ravi Jandial, Bangalore, IN;
Ivine Kuruvila, Kottayam, IN;
ST-Ericsson SA, Plan-les-Ouates, CH;
Abstract
A wireless communication apparatus is arranged to detect, among a plurality of modulated carrier signals of different frequencies, at least one of the modulated carrier signals modulated with a tone burst. A receiver provides a composite signal comprising the plurality of modulated carrier signals received simultaneously. An ADC generates samples of the composite signal, and the samples of the composite signal are divided into a plurality of blocks. The samples of each block are transformed into frequency domain components, and the frequency domain components of each block are divided into a plurality of groups, each group corresponding to a range of frequencies occupied by a different one of the modulated carrier signals. Tone burst detection is performed on each group, and it is determined which of the modulated carrier signals is modulated with the tone burst, according to which of the groups the tone burst is detected in.