RC

Raghu Narayan Challa

QU Qualcomm: 241 patents #95 of 12,104Top 1%
📍 San Diego, CA: #90 of 23,606 inventorsTop 1%
🗺 California: #369 of 386,348 inventorsTop 1%
Overall (All Time): #2,104 of 4,157,543Top 1%
244
Patents All Time

Issued Patents All Time

Showing 226–244 of 244 patents

Patent #TitleCo-InventorsDate
7436412 Graphics engine with efficient interpolation 2008-10-14
7298776 Acquisition of a gated pilot signal with coherent and noncoherent integration Rao Yallapragada 2007-11-20
7133437 Pilot interpolation for a gated pilot with compensation for induced phase changes Peter J. Black 2006-11-07
7088955 Method and apparatus for acquiring and tracking pilots in a CDMA communication system Gilbert C. Sih 2006-08-08
7085295 Method and apparatus for searching for pilots over code space in a CDMA communication system Remi Gurski, Serguei A. Glazko 2006-08-01
7076225 Variable gain selection in direct conversion receiver Tao Li, Christian Holenstein, Inyup Kang, Brett C. Walker, Paul E. Peterzell +3 more 2006-07-11
7020180 Method and apparatus for acquiring pilots over code space and frequency errors in a CDMA communication system Gilbert C. Sih, Serguei A. Glazko 2006-03-28
6980823 Intermediate wake mode to track sleep clock frequency in a wireless communication device Baaziz Achour, Robbin D. Hughes 2005-12-27
6950841 Logarithmic lookup tables Nagabhushana Sindhushayana, Arun Raghupathy 2005-09-27
6912244 Pilot frequency acquisition based on a window of data samples Mark Roh, Shimman Arvind Patel 2005-06-28
6813478 Method and apparatus for searching a gated pilot Serguei A. Glazko, Peter J. Black 2004-11-02
6748201 Gain control for communications device Peter J. Black, Nagabhushana Sindhushayana, Kevin S. Seltmann 2004-06-08
6707865 Digital voltage gain amplifier for zero IF architecture 2004-03-16
6704555 Apparatus and method for calibrating local oscillation frequency in wireless communications Gilbert C. Sih 2004-03-09
6700922 System and method for acquiring a received signal in a spread spectrum device Farrokh Abrishamkar, Ian J. Fevrier, Serguei A. Glazko, Way-Shing Lee, Christopher Patrick +1 more 2004-03-02
6608858 Multipath doppler adjusted frequency tracking loop Gilbert C. Sih, Avneesh Agrawal, Mark Roh, Brian K. Butler 2003-08-19
6594501 Systems and techniques for channel gain computations Peter J. Black, Nagabhushana Sindhushayana, Rashid Ahmed Akbar Attar 2003-07-15
6580746 System and method for acquiring a received signal in a spread spectrum device Farrokh Abrishamkar, Ian J. Fevrier, Serguei A. Glazko, Way-Shing Lee, Christopher Patrick +1 more 2003-06-17
6453181 Method and apparatus for compensating for frequency drift in a low frequency sleep clock within a mobile station operating in a slotted paging mode Ihab Barghouti, Dung Duc Nguyen 2002-09-17