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:
Oct. 12, 2004
Filed:
Oct. 26, 2000
Robert Morelos-Zaragoza, Tokyo, JP;
Sony Corporation, Tokyo, JP;
Abstract
A modulation format identification device capable of realizing a practical receiver capable of identifying a modulation format of a received signal irrespective of its modulation format by a simple configuration, wherein provision is made of a phase lock detector group having a plurality of detectors provided corresponding to a plurality of modulation formats and with the received signals input in parallel thereto, counting a number of symbols in accordance with the modulation format for every detector, making a primary decision that the received signal has been modulated by the related modulation format when the count exceeds a constant threshold value, and outputting the results as lock detection flags and a logic circuit for exclusively selecting one modulation format upon receipt of the plurality of output results of the phase lock detector group, and a method of the same.