Carl Robert Posthuma — 27 Patents at AT&T

Carl Robert Posthuma has been granted 27 US patents while listed as an inventor at AT&T. The first was granted in 1997 and the most recent in September 2014. Carl Robert Posthuma ranks #142,059 of 4,157,543 US inventors in our database (top 3.4%). Patent records list Carl Robert Posthuma in Wheaton, IL, US.

Issued Patents All Time

Showing 1–25 of 27 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
8830812	Optimizing precoder settings using average SINR reports for groups of tones	Alexei Ashikhmin, Adriaan J. De Lind Van Wijngaarden, Gerhard Kramer, Jochen Maes, Carl Nuzman +4 more	2014-09-09	$2,230,000
7860044	Methods and apparatus for providing synchronization in a multi-channel communication system	Alexei Ashikhmin, Hungkei Chow, Adriaan J. De Lind Van Wijngaarden, Jan Willem Hellenthal, Jean Gerardus Leonardus Jennen +4 more	2010-12-28	$1,893,000
7676031	Method and apparatus for selectively terminating current in a digital subscriber line (DSL) modem	—	2010-03-09	$1,525,000
7236484	Methods and systems for providing wide-band voice service via a telephone switch system	Joseph Kott	2007-06-26
7058174	System and method for providing lifeline power service to digital subscriber line customers	—	2006-06-06	$5,097,000
7039056	High quality audio and video over digital subscriber lines (DSLs)	Wim L. Brouwer	2006-05-02	$5,547,000
7027590	Dynamic allocation of overhead voltage to support simultaneous transmission of signals on a telecommunication line	—	2006-04-11	$13,583,000
7016474	Reduced cost digital subscriber line (DSL) interface arrangement	Wim L. Brouwer	2006-03-21	$7,213,000
6959184	Method for determining the security status of transmissions in a telecommunications network	Charles Calvin Byers, Mark Alan Lassig, Steven Miller, William Brohmer Paulson	2005-10-25	$16,151,000
6952417	System and method for selectively providing data communications in an XDSL communication system	—	2005-10-04	$17,525,000
6925173	Optimization of a DSL-compatible POTS line card	Ronald A. Nordin	2005-08-02	$11,883,000
6898280	Line card and method for supporting pots, asymmetric DSL and symmetric DSL services	Kevin Dombkowski	2005-05-24	$13,351,000
6836509	Dsl- compatible pots line card	Ronald A. Nordin, Paul Sand	2004-12-28	$15,888,000
6782078	System to pre-qualify copper subscriber loops for high bandwidth access service using subscriber voice signals	—	2004-08-24	$7,215,000
6748078	System and method for allocating overhead voltage in the transmission of pots and XDSL signals	—	2004-06-08	$11,620,000
6694015	Universal line interface in telecommunications system	Charles Calvin Byers, Mark Alan Lassig	2004-02-17
6694012	System and method to provide control of music on hold to the hold party	—	2004-02-17	$15,630,000
6647024	System and method for an all digital communication system with a life line	Kevin Dombkowski, Steven Miller	2003-11-11	$14,886,000
6519253	Telecommunication equipment support of ISDN communication lines for high speed data transmission	—	2003-02-11	$8,140,000
6496566	Metallic testing of a subscriber loop that provides both voice and digital subscriber line services	—	2002-12-17	$7,493,000
6459773	System to pre-qualify copper subscriber loops for high bandwidth access service using subscriber or network generated tones	—	2002-10-01	$4,568,000
6456694	Method for prequalifying subscriber lines for high speed data service	—	2002-09-24	$5,535,000
6349130	Method to pre-qualify copper loops for ADSL service	Albert J. Sawyer	2002-02-19	$35,380,000
6229846	Apparatus and method for implementing high speed modem communication support	Mark Alan Lassig	2001-05-08	$34,526,000
6144659	Telecommunication equipment support of high speed data services	Robert Alan Nye	2000-11-07	$43,205,000

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Carl Robert Posthuma — 27 Patents

Issued Patents All Time

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