Vijitha Weerackody — 22 Patents at AT&T

Vijitha Weerackody has been granted 22 US patents while listed as an inventor at AT&T. The first was granted in 1994 and the most recent in September 2005. Vijitha Weerackody ranks #189,202 of 4,157,543 US inventors in our database (top 4.6%). Patent records list Vijitha Weerackody in Springfield, NJ, US.

Issued Patents All Time

Showing 1–22 of 22 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
6950389	Peak-to-average power reduction in an orthogonal frequency division multiplexing system	—	2005-09-27	$7,532,000
6876623	Tuning scheme for code division multiplex broadcasting system	Hui-Ling Lou, Zulfiquar Sayeed	2005-04-05
6842724	Method and apparatus for reducing start-up delay in data packet-based network streaming applications	Hui-Ling Lou, Gerald Schuller	2005-01-11	$12,606,000
6807145	Diversity in orthogonal frequency division multiplexing systems	Zulfiquar Sayeed	2004-10-19	$16,433,000
6760699	Soft feature decoding in a distributed automatic speech recognition system for use over wireless channels	Wolfgang Reichl, Alexandros Potamianos	2004-07-06	$14,786,000
6745005	Method and apparatus for reducing signal interference in satellite broadcast systems employing terrestrial repeater stations	Hui-Ling Lou	2004-06-01
6728202	Code division multiplex satellite broadcasting system	Zulfiquar Sayeed	2004-04-27
6370666	Tuning scheme for error-corrected broadcast programs	Hui-Ling Lou, Rudiger L. Urbanke	2002-04-09	$2,521,000
6157612	Fast fading packet diversity transmission method and system	William Glenn Zeng	2000-12-05	$30,036,000
5949833	Method and apparatus to implement antenna diversity for direct sequence spread spectrum receivers	—	1999-09-07	$71,432,000
5943372	Orthogonal polarization and time varying offsetting of signals for digital data transmission or reception	Michael J. Gans, Jack Winters	1999-08-24	$59,253,000
5848103	Method and apparatus for providing time diversity	—	1998-12-08	$52,365,000
5828677	Adaptive hybrid ARQ coding schemes for slow fading channels in mobile radio systems	Zulfiquar Sayeed	1998-10-27	$38,631,000
5689439	Switched antenna diversity transmission method and system	William Glenn Zeng	1997-11-18	$13,326,000
5671156	Transmission method and system for JPEG images	Yong Zhou	1997-09-23	$26,467,000
5657325	Transmitter and method for transmitting information packets with incremental redundancy	Hui-Ling Lou	1997-08-12	$24,619,000
5581481	System for storage and retrieval of JPEG images	Yong Zhou	1996-12-03	$48,110,000
5461610	Precoding of signature sequences for CDMA systems	—	1995-10-24
5457712	Method for providing time diversity	—	1995-10-10
5394435	Diversity for direct-sequence spread spectrum systems	—	1995-02-28
5305353	Method and apparatus for providing time diversity	—	1994-04-19
5289499	Diversity for direct-sequence spread spectrum systems	—	1994-02-22

Vijitha Weerackody — 22 Patents

Issued Patents All Time

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