Chang; Seok-Il

Patent Applications and Registrations

Patent applications and USPTO patent grants for Chang; Seok-Il.The latest application filed is for "frame synchronization for a mobile communication system".

Company Profile

0.4.7

Chang; Seok-Il - Seoul KR
Chang; Seok-Il - Gyeonggi-Do KR
Chang; Seok-Il - Gyunggi-Do KR
Chang, Seok-il - Ansan KR

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Wind-up power control method and apparatus in mobile communications system Grant 7,620,414 - Chang November 17, 2	2009-11-17
Frame synchronization for a mobile communication system Grant 7,466,684 - Chang December 16, 2	2008-12-16
Automatic frequency control device and method of QPSK modulation system Grant 7,386,073 - Chang June 10, 2	2008-06-10
Apparatus for mapping and spreading data symbols in mobile communication system Grant 7,324,581 - Chang January 29, 2	2008-01-29
Frame synchronization for a mobile communication system App 20050153721 - Chang, Seok-Il	2005-07-14
Automatic frequency control device and mehtod of QPSK modulation system App 20050036574 - Chang, Seok-il	2005-02-17
Channel estimation method and apparatus App 20040252793 - Chang, Seok-Il	2004-12-16
QPSK demodulating method and apparatus for soft output in 3G TDD system App 20040252792 - Chang, Seok-Il	2004-12-16
Method for retrieving sequences having minimum PAPR in OFDM communication system App 20040136315 - Chang, Seok-Il	2004-07-15
Apparatus for mapping and spreading data symbols in mobile communication system App 20040125861 - Chang, Seok Il	2004-07-01
De-channelization method of W-CDMA system App 20040081126 - Chang, Seok-Il	2004-04-29

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