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Class Information
Number: 327/113
Name: Miscellaneous active electrical nonlinear devices, circuits, and systems > Signal converting, shaping, or generating > Frequency or repetition rate conversion or control
Description: Subject matter wherein a frequency characteristic of an input signal is modified to produce an output wave of different frequency characteristic which has a definite relationship to that of the input wave or where a frequency characteristic is held essentially constant.










Sub-classes under this class:

Class Number Class Name Patents
327/117 Frequency division 490
327/119 Frequency multiplication (e.g., harmonic generation, etc.) 269
327/114 Of output rectangular waveform 234


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

Patent Number Title Of Patent Date Issued
6501307 Spread-spectrum clock buffer/driver that modulates clock period by switching loads Dec. 31, 2002
6496045 Programmable even-number clock divider circuit with duty cycle correction and optional phase shift Dec. 17, 2002
6493410 Wide band high resolution synthesizer Dec. 10, 2002
6489816 Frequency converter with direct current suppression Dec. 3, 2002
6483355 Single chip CMOS transmitter/receiver and method of using same Nov. 19, 2002
6472925 Mixer circuit with negative feedback filtering Oct. 29, 2002
6466064 Frequency multiplier device and frequency multiplier circuit Oct. 15, 2002
6456125 Distributed high frequency circuit equipped with bias bypass line to reduce chip area Sep. 24, 2002
6456154 Drive control circuit of charged pump circuit Sep. 24, 2002
6429704 Power consumption reduction method, power consumption reduction circuit, control circuit, and hard disk drive apparatus Aug. 6, 2002
6417703 Frequency synthesizer using a ratio sum topology Jul. 9, 2002
6400936 Low-noise lossless feedback double-balanced active mixers Jun. 4, 2002
6396318 Clock period sensing circuit May. 28, 2002
6396317 Digital voltage controlled oscillator May. 28, 2002
6393267 Lossless feedback double-balance active mixers May. 21, 2002
6388478 Configurable clock generator May. 14, 2002
6381449 Frequency converter Apr. 30, 2002
6370365 Selective call radio having an integrated frequency conversion circuit Apr. 9, 2002
6370371 Applications of universal frequency translation Apr. 9, 2002
6362668 Circuit and method for frequency generator control Mar. 26, 2002
6351160 Method and apparatus for enhancing reliability of a high voltage input/output driver/receiver Feb. 26, 2002
6348821 Frequency doubler with 50% duty cycle output Feb. 19, 2002
6345178 Linear balanced RF mixer Feb. 5, 2002
6320431 Apparatus and method of generating numerically controlled oscillator signals Nov. 20, 2001
6313688 Mixer structure and method of using same Nov. 6, 2001
6292047 Switching down conversion mixer for use in multi-stage receiver architectures Sep. 18, 2001
6288583 PLL synthesizer circuit Sep. 11, 2001
6278872 Frequency converter with improved linearity Aug. 21, 2001
6275101 Phase noise reduction circuits Aug. 14, 2001
6229361 Speed-up charge pump circuit to improve lock time for integer-N or fractional-N GSM wireless data/voice applications May. 8, 2001
6222403 Slew rate output circuit with an improved driving capability of driving an output MOS field effect transistor Apr. 24, 2001
6219535 Semiconductor amplifier and frequency converter Apr. 17, 2001
6219536 Mixer circuit Apr. 17, 2001
6194947 VCO-mixer structure Feb. 27, 2001
6188255 Configurable clock generator Feb. 13, 2001
6188258 Clock generating circuitry Feb. 13, 2001
6181181 Phase shifter for a quadrature modulator and an image suppression mixer Jan. 30, 2001
6160425 Frequency converter Dec. 12, 2000
6144236 Structure and method for super FET mixer having logic-gate generated FET square-wave switching signal Nov. 7, 2000
6144846 Frequency translation circuit and method of translating Nov. 7, 2000
6140849 Active double-balanced mixer with embedded linearization amplifiers Oct. 31, 2000
6137323 Low-consumption frequency translator Oct. 24, 2000
6138000 Low voltage temperature and V.sub.cc compensated RF mixer Oct. 24, 2000
6121819 Switching down conversion mixer for use in multi-stage receiver architectures Sep. 19, 2000
6114916 Oscillation apparatus Sep. 5, 2000
6115586 Multiple loop radio frequency synthesizer Sep. 5, 2000
6111452 Wide dynamic range RF mixers using wide bandgap semiconductors Aug. 29, 2000
6108529 Radio system including FET mixer device and square-wave drive switching circuit and method therefor Aug. 22, 2000
6107845 Frequency control circuit for oscillator and method therefor Aug. 22, 2000
6091305 PLL frequency synthesizer Jul. 18, 2000

1 2 3 4 5 6 7 8 9 10 11 12










 
 
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