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Class Information
Number: 327/334
Name: Miscellaneous active electrical nonlinear devices, circuits, and systems > Specific input to output function
Description: Subject matter wherein an output is proportional to a nonlinear mathematical expression of an input signal.










Sub-classes under this class:

Class Number Class Name Patents
327/354 Absolute value 30
327/335 By differentiating 61
327/336 By integrating 252
327/355 Combining of plural signals 400
327/346 Exponential 78
327/363 Having feedback 52
327/350 Logarithmic 201
327/362 With compensation 432
327/364 With vacuum tube 3


Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
8689244 Hardware communications infrastructure supporting location transparency and dynamic partial reconfiguration Apr. 1, 2014
8683255 Circuit and method for controllably delaying an input signal, and microscope, and method for controlling a microscope Mar. 25, 2014
8497646 Controller for AC electric motor and electric powered vehicle Jul. 30, 2013
8384425 Arrays of transistors with back control gates buried beneath the insulating film of a semiconductor-on-insulator substrate Feb. 26, 2013
8373056 Waveform generation apparatus and waveform generation program Feb. 12, 2013
8350614 Analog logic automata Jan. 8, 2013
8332190 Circuit simulator, circuit simulation method and program Dec. 11, 2012
8258849 Method and an apparatus for processing a signal Sep. 4, 2012
8159280 Noise generator Apr. 17, 2012
8154336 Method and apparatus for reducing interference Apr. 10, 2012
8115536 Self-oscillating switch circuit for use in a switching DC-DC converter Feb. 14, 2012
7944019 Voltage-controlled semiconductor inductor and method May. 17, 2011
7779317 Test control circuit and reference voltage generating circuit having the same Aug. 17, 2010
7761647 Storage device with automatic interface-switching function Jul. 20, 2010
7733155 Low power voltage detection circuit and method therefor Jun. 8, 2010
7663442 Data receiver including a transconductance amplifier Feb. 16, 2010
7598793 Capacitance multiplier circuit Oct. 6, 2009
7598762 Semiconductor driver circuit with signal swing balance and enhanced testing Oct. 6, 2009
7592855 Trimming circuit and semiconductor device Sep. 22, 2009
7583127 High Q linear controlled variable capacitor using translinear amplifier Sep. 1, 2009
7573315 Control device and method of operating the control device having controller chips and change-over unit Aug. 11, 2009
7545197 Anti-logarithmic amplifier designs Jun. 9, 2009
7406339 On-chip detection circuit off-chip mechanical switch's open and close actions Jul. 29, 2008
7388410 Input circuits configured to operate using a range of supply voltages Jun. 17, 2008
7352230 Internal voltage trimming circuit for use in semiconductor memory device and method thereof Apr. 1, 2008
7233177 Precision tuning of a phase-change resistive element Jun. 19, 2007
7190205 Variable resistance circuit Mar. 13, 2007
7161851 Method and apparatus for generating multiple system memory drive strengths Jan. 9, 2007
7154325 Using active circuits to compensate for resistance variations in embedded poly resistors Dec. 26, 2006
7123729 Dual use of an integrated circuit pin and the switching of signals at said pin Oct. 17, 2006
7106120 PCMO resistor trimmer Sep. 12, 2006
7107469 Power down processing islands Sep. 12, 2006
7084691 Mono-polarity switchable PCMO resistor trimmer Aug. 1, 2006
7084663 Impedance adjustment circuit, impedance adjustment method, and semiconductor device Aug. 1, 2006
7073087 Transition signal control unit and DMA controller and transition signal control processor using transition signal control unit Jul. 4, 2006
7049875 One-pin automatic tuning of MOSFET resistors May. 23, 2006
7002435 Variable capacitance circuit, variable capacitance thin film capacitor and radio frequency device Feb. 21, 2006
6963238 Level shift circuit Nov. 8, 2005
6930540 Integrated circuit with voltage divider and buffered capacitor Aug. 16, 2005
6822502 Variable impedance circuit Nov. 23, 2004
6815998 Adjustable-ratio global read-back voltage generator Nov. 9, 2004
6803811 Active hybrid circuit Oct. 12, 2004
6777998 Integrated electronic circuit including non-linear devices Aug. 17, 2004
6774703 Semiconductor device Aug. 10, 2004
6754480 Baseband analog circuit with improved noise characteristics Jun. 22, 2004
6686789 Dynamic low power reference circuit Feb. 3, 2004
6677801 Internal power voltage generating circuit of semiconductor device Jan. 13, 2004
6674321 Circuit configuration for DC-biased capacitors Jan. 6, 2004
6633193 Method of forming a switching device and structure therefor Oct. 14, 2003
6614284 PNP multiplier Sep. 2, 2003

1 2 3 4










 
 
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