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Class Information
Number: 455/307
Name: Telecommunications > Receiver or analog modulated signal frequency converter > Noise or interference elimination > With specific filter structure
Description: Subject matter which offers comparatively little opposition to certain frequencies or direct current while blocking or attenuating other frequencies.










Patents under this class:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

Patent Number Title Of Patent Date Issued
8711993 Wideband multi-channel receiver with fixed-frequency notch filter for interference rejection Apr. 29, 2014
8706056 High-frequency circuit module Apr. 22, 2014
8694037 Method for improving radio performance in a simulcast environment using phase tilted filters Apr. 8, 2014
8688155 Synchronization methods for single-frequency simulcast mobile radio communication networks Apr. 1, 2014
8681850 Signal processing apparatus, signal processing method and program Mar. 25, 2014
8676144 Adaptive interference nulling for MIMO receiver based on interference characteristics Mar. 18, 2014
8676523 Method of detecting the position, in a signal received by a detector, of a wavefront corresponding to an event Mar. 18, 2014
8670739 Frequency-translational bandpass filter with harmonic rejection Mar. 11, 2014
8670733 Multimode communication device with shared signal path programmable filter Mar. 11, 2014
8666351 Multiple band saw-less receiver including a frequency translated BPF Mar. 4, 2014
8666350 Analog front end circuit for cable and wireless systems Mar. 4, 2014
8666346 Robust FM modulation detector using signal autocorrelation Mar. 4, 2014
8665038 Bulk acoustic wave resonator filter being digitally reconfigurable, with process Mar. 4, 2014
8660512 High-frequency prestage and receiver Feb. 25, 2014
8654831 Signal detection apparatus Feb. 18, 2014
8655301 Frequency agile duplex filter Feb. 18, 2014
8655300 Detecting interference in wireless receiver Feb. 18, 2014
8655299 Saw-less receiver with RF frequency translated BPF Feb. 18, 2014
8655272 Wireless charging coil filtering Feb. 18, 2014
8654909 Semiconductor integrated circuit Feb. 18, 2014
8644785 Filtering using impedance translator Feb. 4, 2014
8630603 Circuit and method for image frequency rejection Jan. 14, 2014
8626103 Method and apparatus for filtering Jan. 7, 2014
8621225 Method and apparatus for enhancing security of wireless communications Dec. 31, 2013
8620251 Electronic device with adjustable filter and associated methods Dec. 31, 2013
8620250 Resonator-based filtering Dec. 31, 2013
8620219 Wireless communication system between medical devices using cognitive technology Dec. 31, 2013
8615213 Reducing power consumption of a filter Dec. 24, 2013
8611937 FM receiving device and filtering method Dec. 17, 2013
8611843 Communications filter package for narrowband and wideband signal waveforms Dec. 17, 2013
8606207 Fractal curve based filter Dec. 10, 2013
8606208 Filter circuit and radio terminal including filter circuit Dec. 10, 2013
8606211 High dynamic range receiver front-end with Q-enhancement Dec. 10, 2013
8606321 High-selectivity low noise receiver front end Dec. 10, 2013
8600330 Filter arrangement Dec. 3, 2013
8600331 Radio receiver with reconfigurable baseband channel filter Dec. 3, 2013
8594606 Smoothing filter for irregular update intervals Nov. 26, 2013
8594605 Semiconductor integrated circuit and operation method of the same Nov. 26, 2013
8594604 Fringe capacitor circuit Nov. 26, 2013
8594261 Transmitting/receiving system and broadcast signal processing method Nov. 26, 2013
8588721 Dual mode receiver channel select filter Nov. 19, 2013
8588723 General receiver device with adaptive filter Nov. 19, 2013
8588724 Optimal narrowband interference removal for signals separated in time Nov. 19, 2013
8565814 Radio frequency communication devices and methods Oct. 22, 2013
8565710 Wireless transmitter having frequency translated bandpass filter Oct. 22, 2013
8565709 Digital signal filter Oct. 22, 2013
8565708 Rejection of interferers Oct. 22, 2013
8565681 Systems, methods, and apparatuses for reducing interference at the front-end of a communications receiving device Oct. 22, 2013
8565671 Repeater for radio frequency signals, and for digital television signals in particular Oct. 22, 2013
8553723 Method and device for processing a DVB-H compliant transport stream Oct. 8, 2013

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