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Class Information
Number: 327/551
Name: Miscellaneous active electrical nonlinear devices, circuits, and systems > Specific identifiable device, circuit, or system > Unwanted signal suppression
Description: Subject matter wherein an undesired signal or group of signals is diminished and wherein such subject matter is not elsewhere classifiable.










Sub-classes under this class:

Class Number Class Name Patents
327/552 Active filter 1,102


Patents under this class:
1 2 3 4 5 6 7 8 9 10

Patent Number Title Of Patent Date Issued
8710919 Data processing method Apr. 29, 2014
8710918 Electronic component and reflected-wave cancelling method Apr. 29, 2014
8692606 External power transistor control Apr. 8, 2014
8692797 Touch recognition apparatus and method in capacitive touch screen Apr. 8, 2014
8681842 Transforming I/Q impairments through a linear system Mar. 25, 2014
8674753 Systems and methods for cancelling phase-locked loop supply noise Mar. 18, 2014
8674740 Noise removing delay circuit Mar. 18, 2014
8670507 Concatentation-assisted symbol-level combining for MIMO systems with HARQ and/or repetition coding Mar. 11, 2014
8665011 Micro electro-mechanical system circuit capable of compensating capacitance variation and method thereof Mar. 4, 2014
8665010 Circuit and method for sub-harmonic elimination of a power converter Mar. 4, 2014
8659330 Signal generation apparatus and signal generation method Feb. 25, 2014
8653851 Semiconductor integrated circuit Feb. 18, 2014
8643430 Device and circuit with improved linearity Feb. 4, 2014
8638836 Transmitter signal injection compensation Jan. 28, 2014
8629715 Clock distribution scheme Jan. 14, 2014
8626469 In-situ RC-calibration scheme for active RC filter Jan. 7, 2014
8624666 Interleaved noise reduction circuit and method Jan. 7, 2014
8618841 Method for reducing spurious for a clock distribution system Dec. 31, 2013
8618871 Noise reduction device and semiconductor device having the same Dec. 31, 2013
8611409 Method and apparatus for performing channel equalization on a MIMO signal Dec. 17, 2013
8605840 Method to cancel impulsive interference from a signal processing system Dec. 10, 2013
8593085 Device for charging accumulator means Nov. 26, 2013
8594168 Digital signal processor with adjustable data rate and methods thereof Nov. 26, 2013
8588356 Method and device for detecting a phase error of a signal Nov. 19, 2013
8588353 Frequency selective IQ correction Nov. 19, 2013
8587371 Electric circuit for reducing energy consumption Nov. 19, 2013
8587357 AC supply noise reduction in a 3D stack with voltage sensing and clock shifting Nov. 19, 2013
8582635 Sparse and reconfigurable floating tap feed forward equalization Nov. 12, 2013
8576903 Techniques for adaptively adjusting decision levels of a PAM-N decision feedback equalizer Nov. 5, 2013
8570099 Single-ended-to-differential filter using common mode feedback Oct. 29, 2013
8564362 Filter circuit, semiconductor integrated circuit, communication apparatus, semiconductor device, and system Oct. 22, 2013
8558599 Method and apparatus for reducing power spikes caused by clock networks Oct. 15, 2013
8547169 Programmable noise filtering for bias kickback disturbances Oct. 1, 2013
8537885 Low-power down-sampled floating tap decision feedback equalization Sep. 17, 2013
8532225 DC compensation for VLIF signals Sep. 10, 2013
8532237 Correction of alternating I/Q imbalance and frequency offset impairments Sep. 10, 2013
8520725 Data equalizing circuit and data equalizing method Aug. 27, 2013
8514965 Wireless communication system with a modulation bandwidth comparable to or exceeding the bandwidth of the transmitter and/or receiver antennas Aug. 20, 2013
8509358 Viterbi equalization with detection of the nearest constellation points for stage reduction Aug. 13, 2013
8502593 Balanced debounce circuit with noise filter for digital system Aug. 6, 2013
8503510 Communication device, noise removing method, and program Aug. 6, 2013
8498606 Data rate tracking filter Jul. 30, 2013
8497731 Low pass filter circuit Jul. 30, 2013
8497730 System for and method of modifying impedance characteristics of circuit elements Jul. 30, 2013
8494099 Signal processing using modified blockwise analytic matrix inversion Jul. 23, 2013
8487691 AC noise suppression from a bias signal in high voltage supply/low voltage device Jul. 16, 2013
8476968 Filter system capable of automatically adjusting bandwidth and method of automatically adjusting bandwidth of a filter Jul. 2, 2013
8477884 Accelerated turbo transceiver and method for MIMO system Jul. 2, 2013
8461916 Filter circuit and integrated circuit including the same Jun. 11, 2013
8456229 Filter device Jun. 4, 2013

1 2 3 4 5 6 7 8 9 10










 
 
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