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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
5451892 Clock control technique and system for a microprocessor including a thermal sensor Sep. 19, 1995
5448197 Frequency conversion circuit and mixing circuit including the same Sep. 5, 1995
5446398 Sampling frequency converter Aug. 29, 1995
5444402 Variable strength clock signal driver and method of manufacturing the same Aug. 22, 1995
5442670 Circuit for dividing clock frequency by N.5 where N is an integer Aug. 15, 1995
5440252 State machine with hysteresis for detecting frequency of an input signal Aug. 8, 1995
5430392 Clock system and method for reducing the measured level of unintentional electromagnetic emissions from an electronic device Jul. 4, 1995
5422584 Variable phase sine wave generator for active phased arrays Jun. 6, 1995
5422594 Multi-channel carrier wave generator Jun. 6, 1995
5418825 Time-domain boundary bridge method and apparatus May. 23, 1995
5416449 Modulator with harmonic mixers May. 16, 1995
5416435 Time measurement system May. 16, 1995
5416434 Adaptive clock generation with pseudo random variation May. 16, 1995
5410744 HF mixer stage having a common base circuit Apr. 25, 1995
5410743 Active image separation mixer Apr. 25, 1995
5410510 Process of making and a DRAM standby charge pump with oscillator having fuse selectable frequencies Apr. 25, 1995
5406137 Circuit arrangement for evaluating the signal of a capacitive measuring sensor Apr. 11, 1995
5399984 Digital frequency generation device Mar. 21, 1995
5398031 DTMF signal generating circuit Mar. 14, 1995
5396659 Direct-coupled FET frequency multiplier and mixer circuit Mar. 7, 1995
5396523 Shifting the phase of a clock signal, in particular for clock recovery of a digital data signal Mar. 7, 1995
5396132 MESFET mixer circuit having a pulse doped structure Mar. 7, 1995
5394490 Semiconductor device having an optical waveguide interposed in the space between electrode members Feb. 28, 1995
5394106 Apparatus and method for synthesis of signals with programmable periods Feb. 28, 1995
5391946 Frequency converting circuit apparatus Feb. 21, 1995
5390224 Clock control apparatus Feb. 14, 1995
5379458 Transformerless diode mixer Jan. 3, 1995
5379457 Low noise active mixer Jan. 3, 1995
5378949 Signal mixing device utilizing a superconducting strip line with superconducting weak links and two control lines Jan. 3, 1995
5371425 Digital damping method and apparatus for phase-locked loops Dec. 6, 1994
5361409 FET mixer having transmission line transformer Nov. 1, 1994
5357447 Rate conversion apparatus Oct. 18, 1994
5357147 Wave-shaping apparatus Oct. 18, 1994
5355171 Digital oscillator and color subcarrier demodulation circuit having the digital oscillator Oct. 11, 1994
5355534 Frequency mixing circuit having automatic gain control function Oct. 11, 1994
5355533 Method and circuit for radio frequency signal detection and interference suppression Oct. 11, 1994
5347235 Optically controlled oscillator Sep. 13, 1994
5339458 Frequency converter unit for use in a high-frequency receiver Aug. 16, 1994
5337005 Integrated frequency synthesizer circuit for transmit-and-receiver operation Aug. 9, 1994
5334884 Three junction squid mixer Aug. 2, 1994
5319267 Frequency doubling and mixing circuit Jun. 7, 1994
5317275 Conductance measurement circuit with wide dynamic range May. 31, 1994
5315136 Double-balanced mixer May. 24, 1994
5306969 Frequency mixer circuit using FETs Apr. 26, 1994
5302920 Controllable multi-phase ring oscillators with variable current sources and capacitances Apr. 12, 1994
5303417 Mixer for direct conversion receiver Apr. 12, 1994
5300836 Flame rod structure, and a compensating circuit and control method thereof Apr. 5, 1994
5291081 Apparatus for detection of non-modulated signal and frequency acquisition Mar. 1, 1994
5276368 Frequency discriminator Jan. 4, 1994
5274272 Device for supplying electrical energy to a load Dec. 28, 1993

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










 
 
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