公开(公告)号：EP1961111A1

公开(公告)日：2008-08-27

申请号：EP06814299.1

申请日：2006-09-07

申请人： Sandbridge Technologies, Inc.

发明人： IANCU, Daniel ,  YE, Hua ,  GLOSSNER, John

IPC分类号： H03D1/00

CPC分类号： H04L25/022 ,  H04L25/0228 ,  H04L25/025 ,  H04L27/2647

摘要： A scalar Kalman filter is applied for a Least-Square estimated value Hs at s. The filter has an input for receiving Hs , a filter equation and an out for the corrected estimated value Hk for the kth variable. The filter equation is Hk = Kgain Sn [k] wherein: correction Sn [k] = S + Kn ( Hs -S); prediction of the correction S = Ka Sn [k]; Kalman filter gain Kn = P / ( 1 + P); minimum predication MSE P = Ka2 Pn [k] + Kb; minimum MSE Pn [k] = P ( 1 - Kn ); and Ka , Kgain and Kb are constants.

公开(公告)号：EP1902587A1

公开(公告)日：2008-03-26

申请号：EP06750019.9

申请日：2006-04-13

申请人： Sandbridge Technologies, Inc.

发明人： YE, Hua ,  IANCU, Daniel ,  GLOSSNER, John ,  KOTLYAR, Vladimir ,  IANCU, Andrei

IPC分类号： H04N9/44 ,  H04N9/78

CPC分类号： H04N9/44 ,  H04N9/78

摘要： An analog TV receiver implementation on DSP allows mobile platforms to view analog TV broadcasting on LCD displays. The analog television receiver includes a demodulator for demodulating a received analog television signal, an analog to digital converter for digitizing the demodulated television signal and a digital signal processor for producing display signals from the digitized television signals. The digital signal processor being programmed to search for a horizontal synchronization signal in the television signal, track the horizontal synchronization signal and search for a vertical synchronization signal in the television signal. Next the processor separates a luminance and a pair of chrominance components of the television signal and demodulates the pair of chrominance components. Red, green and blue values are constructed from the demodulated chrominance components and the luminance components. Display signals are produced from the red, green and blue values.

公开(公告)号：EP1808026A1

公开(公告)日：2007-07-18

申请号：EP05796074.2

申请日：2005-08-31

申请人： Sandbridge Technologies, Inc.

发明人： YE, Hua ,  IANCU, Daniel

IPC分类号： H04N11/06

CPC分类号： H04L1/20 ,  H04H20/28 ,  H04H40/18 ,  H04L27/2647

摘要： A receiver (for orthogonal frequency division multiplexing (OFDM) signals, including an A/D converter (for converting received analog signals to a digital signal data stream and an OFDM demodulator (64) for producing a first set of complex I and Q components of sub-carriers from the digital signal data stream. The receiver includes a CSI estimator (70) for estimating Channel State Information (CSI) from the sets of complex I and Q components and a TPS decoder for decoding TPS data from the sets of complex I and Q components using the CSI.

公开(公告)号：EP1754355A1

公开(公告)日：2007-02-21

申请号：EP05757666.2

申请日：2005-06-07

申请人： Sandbridge Technologies, Inc.

发明人： IANCU, Daniel ,  YE, Hua ,  GLOSSNER, John ,  ABDELILAH, Youssef

IPC分类号： H04L27/00 ,  H04L27/02 ,  H04L27/10 ,  H04L27/14 ,  H04L27/28 ,  H03D1/24

CPC分类号： H04L27/2657 ,  H04L27/2662

摘要： A receiver for orthogonal frequency division multiplexing signals, including an A/D converter (52) for converting receiver analog signals to a digital signal data stream, wherein the digital signal data stream includes symbols separated by guard segments. The receiver also includes an I/Q demodulator (54) for producing a first set of complex I and Q components from the digital data stream and a guard segment length detector (58) using the first set of I and Q components. It further includes an extractor (62) for extracting and removing the guard segments of the detected length from the digital signal data stream and an FFT demodulator (64) for demodulating the symbols of the digital signal data stream to produce second sets of complex I and Q components.

公开(公告)号：EP2069947A2

公开(公告)日：2009-06-17

申请号：EP07871094.4

申请日：2007-09-24

申请人： Sandbridge Technologies, Inc.

发明人： SIMA, Mihai ,  IANCU, Daniel ,  YE, Hua ,  MOUDGILL, Mayan

IPC分类号： G06F15/00

CPC分类号： G06F17/16 ,  G06F9/30014 ,  G06F9/30036 ,  G06F9/30101 ,  G06F9/3851 ,  G06F9/3867 ,  G06F9/3885 ,  G06F9/3895

摘要： A digital signal processor is provided in a wireless communication device, wherein the processor comprises a vector unit, first and second registers coupled to and accessible by the vector unit; and an instruction set configured to perform matrix inversion of a matrix of channel values by coordinate rotation digital computer instructions using the vector unit and the first and second registers.