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Class Information
Number: 455/303
Name: Telecommunications > Receiver or analog modulated signal frequency converter > Noise or interference elimination > Using plural separate signal paths
Description: Subject matter comprising means for receiving a modulated carrier input signal wave consisting of a plurality of signal translating channels including at least one main channel, which one channel includes means for selecting a carrier component having a first characteristic type of modulation representing a desired signal as well as a second type of modulation representing undesired signal disturbances, and at least one other auxiliary signal translating channel comprising means for selectively detecting only modulation representing undesired signal disturbances and means responsive to the output of both channels to reduce or cancel the effects of the undesirable signal disturbances.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7600247 |
Television tuner |
Oct. 6, 2009 |
| 7558546 |
Selectable high-side/low-side mix for high intermediate frequency (IF) receivers |
Jul. 7, 2009 |
| 7535290 |
AM radio receiving circuit |
May. 19, 2009 |
| 7512198 |
Efficient diversity combining for wideband downlink |
Mar. 31, 2009 |
| 7454181 |
Multi-antenna receive diversity control in wireless communications |
Nov. 18, 2008 |
| 7450924 |
Interference cancellation and receive diversity for single-valued modulation receivers |
Nov. 11, 2008 |
| 7440520 |
System and method for terrestrial high-definition television reception |
Oct. 21, 2008 |
| 7440740 |
Method of transmitting data where in a first mode, the power level is not indicated in a message and an NPSK modulation scheme is used, and in a second mode, the power level is indicated in a |
Oct. 21, 2008 |
| 7433667 |
Signal conditioning circuit |
Oct. 7, 2008 |
| 7433664 |
System and method for radio signal reconstruction using signal processor |
Oct. 7, 2008 |
| 7426378 |
Separation of cochannel FM signals |
Sep. 16, 2008 |
| 7400872 |
Radio receiver for selecting appropriate diversity antennas by comparing correlation values and a method for the same |
Jul. 15, 2008 |
| 7376171 |
Multiuser detection aided multiple access differential M-ary coding applications |
May. 20, 2008 |
| 7373130 |
Simultaneous channel estimation of a carrier and an interferer |
May. 13, 2008 |
| 7369836 |
Adjacent interference removal device |
May. 6, 2008 |
| 7366470 |
Inter-modulation distortion compensation |
Apr. 29, 2008 |
| 7333423 |
Transceiver with calibrated I and Q paths and methods for deconvolved calibration |
Feb. 19, 2008 |
| 7315730 |
Architecture for a receiver front end having dual output low noise amplifier driving separate pre-selectors coupled to a transformer for single ended output |
Jan. 1, 2008 |
| 7307484 |
Semiconductor integrated circuit device with noise reduction function |
Dec. 11, 2007 |
| 7299027 |
MIMO receiver and MIMO reception method for selection of MIMO separation and channel variation compensation |
Nov. 20, 2007 |
| 7299026 |
Method and apparatus for interference cancellation performing level adjustment processing for standardizing a channel estimation value between operations of channel estimation processing and j |
Nov. 20, 2007 |
| 7299020 |
Tunable multi-band receiver by on-chip selectable filtering |
Nov. 20, 2007 |
| 7265610 |
Error detection in a signal in amplitude modulation |
Sep. 4, 2007 |
| 7239876 |
Method for increased location receiver sensitivity |
Jul. 3, 2007 |
| 7233811 |
Radio device with transmission directivity, and control method and control program for the radio device |
Jun. 19, 2007 |
| 7231151 |
Cosite interference rejection system using an optical approach |
Jun. 12, 2007 |
| 7228120 |
Circuit and method for reducing direct current biases |
Jun. 5, 2007 |
| 7228110 |
Low cost high frequency device having compact mounting area, high frequency amplification method, wireless communication device and mobile telephone including low cost and high frequency circu |
Jun. 5, 2007 |
| 7224726 |
System and method for terrestrial high-definition television reception |
May. 29, 2007 |
| 7213080 |
Intelligent radio design for satellite gateways and terrestrial base stations |
May. 1, 2007 |
| 7203068 |
Electronic apparatus |
Apr. 10, 2007 |
| 7203222 |
Multiplexed ADC for a transceiver |
Apr. 10, 2007 |
| 7197279 |
Multiprotocol RFID reader |
Mar. 27, 2007 |
| 7197291 |
Multimode receiver and method for controlling signal interference |
Mar. 27, 2007 |
| 7181184 |
Band edge amplitude reduction system and method |
Feb. 20, 2007 |
| 7174146 |
Method and apparatus for I/Q mismatch calibration in a receiver |
Feb. 6, 2007 |
| 7167716 |
Synchronous demodulation apparatus of base transceiver station in interim standard-2000 system |
Jan. 23, 2007 |
| 7161528 |
Device and method for the suppression of pulsed wireless signals |
Jan. 9, 2007 |
| 7155252 |
Mimo and diversity front-end arrangements for multiband multimode communication engines |
Dec. 26, 2006 |
| 7133657 |
Channel calibrator for use with a quadrature mixing receiver and a method of operation thereof |
Nov. 7, 2006 |
| 7130605 |
Method and device for synchronization and cancellation of a plurality on interfering signals in radio transmission with frequency reuse |
Oct. 31, 2006 |
| 7123894 |
Dynamic range extension system and method |
Oct. 17, 2006 |
| 7095781 |
Polyphase filter with stack shift capability |
Aug. 22, 2006 |
| 7079867 |
Semi-blind transmit antenna array device using feedback information and method thereof in a mobile communication system |
Jul. 18, 2006 |
| 7068631 |
Training sequence hopping in a radio communication system |
Jun. 27, 2006 |
| 7068990 |
Receiver for two orthogonally polarized signals |
Jun. 27, 2006 |
| 7065329 |
Half duplex radio transceiver with low IF receiver |
Jun. 20, 2006 |
| 7058377 |
Dual channel downconverter for pulsed radio frequency measurements |
Jun. 6, 2006 |
| 7046979 |
Receiver for rejecting image signal |
May. 16, 2006 |
| 7043219 |
System and method for radio signal reconstruction using signal processor |
May. 9, 2006 |
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