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Class Information
Number: 375/350
Name: Pulse or digital communications > Receivers > Interference or noise reduction > By filtering (e.g., digital)
Description: Subject matter wherein the noise is reduced by a frequency domain or digital sequence filter. The filter may remove interference or pass only desired signals.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7620132 |
Positioning signal reception device and control method of positioning signal reception device |
Nov. 17, 2009 |
| 7620124 |
Direct conversion receiver and receiving method |
Nov. 17, 2009 |
| 7616720 |
Multirate digital transceiver |
Nov. 10, 2009 |
| 7616711 |
Frequency domain filtering to improve channel estimation in multicarrier systems |
Nov. 10, 2009 |
| 7616699 |
Method of soft bit metric calculation with direct matrix inversion MIMO detection |
Nov. 10, 2009 |
| 7616606 |
Mechanism for avoiding triggering silent radio squelch circuits |
Nov. 10, 2009 |
| 7613260 |
Modem control using cross-polarization interference estimation |
Nov. 3, 2009 |
| 7609759 |
Method and system of nonlinear signal processing |
Oct. 27, 2009 |
| 7606339 |
Information handling system including adaptive interference suppression feature and method of operation |
Oct. 20, 2009 |
| 7606293 |
Bidirectional turbo ISI canceller-based DSSS receiver for high-speed wireless LAN |
Oct. 20, 2009 |
| 7606137 |
Cancellation systems for multicarrier transceiver arrays |
Oct. 20, 2009 |
| 7602853 |
Method and apparatus for channel estimation |
Oct. 13, 2009 |
| 7602844 |
On-line step-size calculation using signal power estimation and tone grouping of the frequency-domain equalizer for DMT-based transceiver |
Oct. 13, 2009 |
| 7602835 |
Multi-rate spread spectrum composite code |
Oct. 13, 2009 |
| 7599433 |
Apparatus for and method of controlling a feedforward filter of an equalizer |
Oct. 6, 2009 |
| 7599423 |
Successive interference canceling for CDMA |
Oct. 6, 2009 |
| 7596195 |
Bandpass filter with reversible IQ polarity to enable a high side or low side injection receiver architecture |
Sep. 29, 2009 |
| 7596190 |
System, method, and apparatus for correction of code doppler shift |
Sep. 29, 2009 |
| 7596183 |
Joint optimization of transmitter and receiver pulse-shaping filters |
Sep. 29, 2009 |
| 7593494 |
System and method for canceling impulse noise |
Sep. 22, 2009 |
| 7593493 |
Method and system for pre-equalization in a single weight (SW) single channel (SC) multiple-input multiple-output (MIMO) system |
Sep. 22, 2009 |
| 7593486 |
Apparatus and method for controlling transmission mode in a MIMO mobile communication system |
Sep. 22, 2009 |
| 7590396 |
Multimode communication device with shared signal path programmable filter |
Sep. 15, 2009 |
| 7590206 |
Equalization apparatus and equalization method |
Sep. 15, 2009 |
| 7590205 |
Receiver with sliding intermediate frequency (IF) architecture and programmable bandwidth and method |
Sep. 15, 2009 |
| 7590204 |
Technique for adaptive equalization in band-limited high data rate communication over fading dispersive channels |
Sep. 15, 2009 |
| 7590172 |
Low bias estimation of small signal-to-noise ratio |
Sep. 15, 2009 |
| 7587010 |
Complex filter circuit and receiver circuit |
Sep. 8, 2009 |
| 7587009 |
Synchronization and estimation of a transmission channel |
Sep. 8, 2009 |
| 7586996 |
Method for controlling the power of the output signal from an amplifier system and the associated system |
Sep. 8, 2009 |
| 7586992 |
Apparatus and method for channel estimation and cyclic prefix reconstruction in an OFDM-STBC mobile communication system |
Sep. 8, 2009 |
| 7583756 |
Adaptive pilot filter for a wireless communication system |
Sep. 1, 2009 |
| 7583737 |
OFDM signal receiver device and OFDM signal receiving method |
Sep. 1, 2009 |
| 7583724 |
Low-power mixed-mode echo/crosstalk cancellation in wireline communications |
Sep. 1, 2009 |
| 7583723 |
Method and apparatus providing an advanced MIMO receiver that includes a signal-plus-residual interference (SPRI) detector |
Sep. 1, 2009 |
| 7583722 |
Scaling using gain factors for use in data detection |
Sep. 1, 2009 |
| 7580466 |
Demodulation device and demodulation method |
Aug. 25, 2009 |
| 7580455 |
Decision feedback equalization with fractionally-spaced feedback data |
Aug. 25, 2009 |
| 7577216 |
Guard interval and FFT mode detector in DVB-T receiver |
Aug. 18, 2009 |
| 7577194 |
Equalizer and equalization method |
Aug. 18, 2009 |
| 7577160 |
MB-OFDM transmitter and receiver and signal processing method thereof |
Aug. 18, 2009 |
| 7573966 |
Adaptive noise filtering and equalization for optimal high speed multilevel signal decoding |
Aug. 11, 2009 |
| 7573965 |
Kalman filter for channel estimation in OFDM systems |
Aug. 11, 2009 |
| 7573964 |
Channel estimator with extended channel bandwidth |
Aug. 11, 2009 |
| 7573958 |
Receiver for and method of recovering transmitted symbols in a H-ARQ packet retransmission |
Aug. 11, 2009 |
| 7573956 |
Time encoding and decoding of a signal |
Aug. 11, 2009 |
| 7570608 |
Echo canceller disabler for modulated data signals |
Aug. 4, 2009 |
| 7567638 |
System and method for canceling interference in a communication system |
Jul. 28, 2009 |
| 7565125 |
Telecommunications receiver with automatic gain control |
Jul. 21, 2009 |
| 7561648 |
Frequency error estimation |
Jul. 14, 2009 |
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