Pulse or digital communications – Receivers – Interference or noise reduction
Reexamination Certificate
2005-01-31
2009-02-03
Kim, Kevin Y (Department: 2611)
Pulse or digital communications
Receivers
Interference or noise reduction
C375S260000, C375S323000
Reexamination Certificate
active
07486751
ABSTRACT:
A multi input multi output (MIMO) receiver for receiving signals having a synchronization (SYNC) module being responsive to a plurality of received baseband signals for processing the same to generate maximum ratio combining (MRC) parameters, complementary code keying (CCK) modulated signals and orthogonal frequency division multiplexing (OFDM) modulated signals, said SYNC module for using said MRC parameters to process said OFDM modulated signals to generate a plurality of aligned OFDM signals in time domain, said MIMO receiver for processing said plurality of aligned OFDM signals to generate a plurality of subcarriers, in accordance with an embodiment of the present invention. The MIMO receiver further including a time domain CCK MRC module being responsive to said MRC parameters for processing said CCK modulated signals in time domain to generate aligned signals, said aligned signals being combined to generate an adjusted signal for demodulation. The MIMO receiver further including a frequency domain OFDM MRC module being responsive to said plurality of said subcarriers for combining the same in the frequency domain to generate an equalized response for demodulation, wherein said MIMO receiver for processing said CCK modulated signals in the time domain and said OFDM modulated signals in the frequency domain to improve the reception of said plurality of received baseband signals.
REFERENCES:
patent: 7019595 (2006-03-01), Lo et al.
patent: 7197094 (2007-03-01), Tung
patent: 7245677 (2007-07-01), Pare, Jr.
patent: 7248650 (2007-07-01), Tung et al.
patent: 7266146 (2007-09-01), Pare, Jr. et al.
Feng Shuling
Pare, Jr. Thomas Edward
Tung Chien-Cheng
Kim Kevin Y
Law Offices of Iman
Ralink Technology, Inc.
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