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Class Information
Number: 455/323
Name: Telecommunications > Receiver or analog modulated signal frequency converter > Frequency modifying or conversion > Particular frequency conversion structure or circuitry
Description: Subject matter including significant details of the frequency modifying or conversion means.










Sub-classes under this class:

Class Number Class Name Patents
455/331 Crystal or electron tube diode 52
455/324 Homodyne (i.e., zero beat or synchrodyne reception) 392
455/325 Including distributed electrical parameter structure 131
455/332 Push-pull 57
455/333 Transistor or integrated circuit 965


Patents under this class:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19

Patent Number Title Of Patent Date Issued
8704582 High linearity mixer using a 33% duty cycle clock for unwanted harmonic suppression Apr. 22, 2014
8693972 Down-conversion of multiple RF channels Apr. 8, 2014
8688045 FM transmitter and non-FM receiver integrated on single chip Apr. 1, 2014
8676145 Mixer circuits for second order intercept point calibration Mar. 18, 2014
8676147 Detection system, controller, and method of detecting a signal of interest Mar. 18, 2014
8670741 Mixer with high second-order and third-order intercept point Mar. 11, 2014
8666352 Harmonic cancellation for frequency conversion harmonic cancellation Mar. 4, 2014
8666354 Distributed, diode mixer circuit Mar. 4, 2014
8666353 Multiple frequency band information signal universal front end with adjustable ADC(s) Mar. 4, 2014
8666351 Multiple band saw-less receiver including a frequency translated BPF Mar. 4, 2014
8659456 Electronic device and transmitter DC offset calibration method thereof Feb. 25, 2014
8649753 Method and system for using a microstrip to switch circuits in CMOS applications Feb. 11, 2014
8649818 Software-defined radio support in sequestered partitions Feb. 11, 2014
8644787 Apparatus and method for forming multiple independent and dynamically adaptable intermediate frequency signals Feb. 4, 2014
8644786 Receiver apparatus having filters implemented using frequency translation techniques Feb. 4, 2014
8638249 System and method for high input capacitive signal amplifier Jan. 28, 2014
8639205 Reduced power-consumption receivers Jan. 28, 2014
8629708 High conversion gain high suppression balanced cascode frequency quadrupler Jan. 14, 2014
8626105 Mixer-amplifier for an RF receive chain Jan. 7, 2014
8624979 Monitoring apparatus for television Jan. 7, 2014
8624660 Method and apparatus for mixer-based harmonic rejection Jan. 7, 2014
8624658 Frequency mixer having parallel mixer cores Jan. 7, 2014
8619997 Receiving apparatus Dec. 31, 2013
8620252 Ultra low power, low noise switched capacitor radio frequency mixer Dec. 31, 2013
8611820 Signal separation for energy harvesting Dec. 17, 2013
8611842 Apparatus and method for fast phase locked loop (PLL) settling for cellular time-division duplex (TDD) communications systems Dec. 17, 2013
8606211 High dynamic range receiver front-end with Q-enhancement Dec. 10, 2013
8606210 Polyphase harmonic rejection mixer Dec. 10, 2013
8606209 Apparatus and methods for efficient implementation of tuners Dec. 10, 2013
8606208 Filter circuit and radio terminal including filter circuit Dec. 10, 2013
8606194 Receiver Dec. 10, 2013
8599312 Digital signal processor (DSP) architecture for a hybrid television tuner Dec. 3, 2013
8600324 Circuit and method for adjusting a digitally controlled oscillator Dec. 3, 2013
8600333 Apparatus for mixing frequency Dec. 3, 2013
8594644 Device and method for executing reserved function in mobile communication terminal Nov. 26, 2013
8594609 Drain-pumped sub-harmonic mixer for millimeter wave applications Nov. 26, 2013
8594607 Methods and systems for down-converting a signal using a complementary transistor structure Nov. 26, 2013
8588725 Apparatus, system, and method for down converting and up-converting electromagnetic signals Nov. 19, 2013
8589470 Down conversion filter Nov. 19, 2013
8583073 Mixer and frequency converting apparatus Nov. 12, 2013
8583072 Multiphase local oscillator generator circuit for a broadband tuner device Nov. 12, 2013
8581655 Clock signal supplying method and circuit for shift registers Nov. 12, 2013
8577322 Signal mixer having a single-ended input and a differential output Nov. 5, 2013
8577323 High dynamic range time-varying integrated receiver for elimination of off-chip filters Nov. 5, 2013
8577305 Circuits and methods for generating oscillating signals Nov. 5, 2013
8571142 System and method for non-crystal-based communications Oct. 29, 2013
8571511 Apparatus and method for a wideband RF mixer Oct. 29, 2013
8571512 Implementing a passive rotating harmonic rejection mixer (RHRM) for a TV tuner in an integrated circuit Oct. 29, 2013
8571513 Integrated circuit passive signal distribution Oct. 29, 2013
8571510 High linearity low noise receiver with load switching Oct. 29, 2013

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