Chen; Robert K.

Patent Applications and Registrations

Patent applications and USPTO patent grants for Chen; Robert K..The latest application filed is for "systems and methods for filter initialization and tuning".

Company Profile

0.7.4

Chen; Robert K. - North Andover MA

*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
Systems and methods for filter initialization and tuning Grant 9,276,560 - Bailey , et al. March 1, 2	2016-03-01
Tunable biquad filter circuit including phase shift detection and methods for using such Grant 8,816,761 - Bailey , et al. August 26, 2	2014-08-26
Systems and Methods for Filter Initialization and Tuning App 20140012888 - Bailey; James A. ; et al.	2014-01-09
Systems and methods for filter initialization and tuning Grant 8,560,589 - Bailey , et al. October 15, 2	2013-10-15
Systems and Methods for Filter Initialization and Tuning App 20120075012 - Bailey; James A. ; et al.	2012-03-29
Tunable Biquad Filter Circuit Including Phase Shift Detection and Methods for Using Such App 20120075011 - Bailey; James A. ; et al.	2012-03-29
Frequency-dependent impedance synthesis for DSL interface circuits Grant 6,842,518 - Chen , et al. January 11, 2	2005-01-11
Frequency-dependent impedance synthesis for DSL interface circuits App 20030112962 - Chen, Robert K. ; et al.	2003-06-19
Subscriber line interface and power circuit Grant 5,848,149 - Chen , et al. December 8, 1	1998-12-08

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