H03H 11 - Networks using active elements

Patents for H03H 11 - Networks using active elements (9,098)
12/2002
12/11/2002	CN1096145C Frequency-dependent resistor
12/11/2002	CN1096118C Intermediate potential generation circuit
12/10/2002	US6492922 Anti-aliasing filter with automatic cutoff frequency adaptation
12/10/2002	US6492914 Filter-provided device
12/10/2002	US6492866 Electronic circuit with bulk biasing for providing accurate electronically controlled resistance
12/10/2002	US6492865 Band pass filter from two filters
12/05/2002	WO2002097985A1 Analog filter with compensation of its time constant
12/05/2002	WO2002097938A2 Electronic isolator
12/05/2002	WO2002056558A9 Active filter circuit with dynamically modifiable internal gain
12/05/2002	US20020180509 Active circuit for synthesizing an inductor
12/05/2002	US20020180505 Pulsed signal transition delay adjusting circuit
12/05/2002	US20020180504 Phase shifter circuit
12/05/2002	US20020180479 Pull-up terminator
12/05/2002	US20020180001 System and method for ESD protection
12/03/2002	US6490706 High Q gyrator structures
12/03/2002	US6490441 Tuning circuit device with built-in band pass integrated on semiconductor substrate together with PLL circuit
12/03/2002	US6489856 Digital attenuator with combined bits
12/03/2002	US6489849 Interpolator having dual transistor ranks and ratiometric control
11/2002
11/28/2002	US20020177966 Method and apparatus for optimizing corner frequency calibration of a tunable filter using a programmable diode
11/28/2002	US20020176556 Intercom system for mansion/apartment house
11/28/2002	US20020175748 Filter circuit and electronic device using the same
11/28/2002	US20020175736 Electronic isolator
11/28/2002	US20020175700 Impedance adjustment circuit
11/28/2002	DE10209807A1 Two-way intercom system for living accommodation and lodgings, each domicile-related main station has speech circuit with load impedance connected to common bus
11/27/2002	EP1260091A2 Power separating filter for data transmission line with complex impedance
11/27/2002	EP1260022A1 Band pass filter from two notch filters
11/26/2002	US6487456 Method and apparatus for creating a selectable electrical characteristic
11/26/2002	US6486722 Semiconductor device including a control signal generation circuit allowing reduction in size
11/21/2002	WO2002093743A1 Phase shifter and multibit phase shifter
11/21/2002	WO2002093742A1 Integrated dvb filter
11/21/2002	DE10215761A1 Variable attenuator for switches, has attenuation setting unit to vary attenuation of signal between two terminals to change gate voltage of FET
11/20/2002	CN1380748A Changeable attenuator
11/19/2002	US6483380 GMC filter and method for suppressing unwanted signals introduced by the filter
11/19/2002	US6483355 Single chip CMOS transmitter/receiver and method of using same
11/14/2002	WO2002091573A1 Method and device for adjusting an active filter
11/14/2002	US20020167366 LC controllable oscillator, a quadrature oscillator and a communication arrangement
11/14/2002	US20020167353 Switched capacitor filter circuit
11/14/2002	DE10122831A1 Integrated automatically controlled DVB filter consists of Chebyshev filter with frequency synthesizer to generate control signal
11/14/2002	DE10121517A1 Verfahren und Vorrichtung zum Einstellen eines aktiven Filters Method and apparatus for adjusting an active filter
11/13/2002	EP1256167A2 Error reduction in quadrature polyphase filters with low open loop gain operational amplifiers
11/13/2002	EP1256166A2 Active isolated-integrator low-pass filter with attenuation poles
11/13/2002	EP1256165A1 Low-voltage transconductance amplifier/filters
11/13/2002	EP0706715B1 Electrical charge transfer apparatus
11/13/2002	CN1379928A Pi/2 phase shifter
11/12/2002	US6480906 Concurrent programming apparatus with status detection capability
11/07/2002	WO2002087462A1 Integrated low-corner frequency high pass filter circuit
11/07/2002	US20020163407 Circuit and method for input side impedance matching of a power amplifier in an electronic device
11/07/2002	US20020163384 Transconductor and filter circuit using the same
11/07/2002	DE10130764C1 Integrated HF circuit for signal amplitude modification has inductances or capacitances for compensation of phase alteration within damping elements
11/06/2002	EP1254514A2 Active termination network
11/05/2002	US6476676 Semiconductor integrated circuit
11/05/2002	US6476660 Fully integrated long time constant integrator circuit
10/2002
10/31/2002	WO2002087071A2 Tunable resonance amplifier
10/31/2002	US20020158687 Integrated low-corner frequency high pass filter circuit
10/31/2002	US20020158678 Tunable quadrature phase shifter
10/30/2002	EP1253714A2 Radio frequency interface
10/30/2002	EP1252711A1 Method and arrangement for signal filtering
10/29/2002	US6473253 Read channel with programmable bandwidth control
10/29/2002	US6472940 Gigabit ethernet transceiver with analog front end
10/29/2002	US6472932 Transconductor and filter circuit
10/29/2002	US6472927 Circuit having increased noise immunity and capable of generating a reference voltage or terminating a transmission line
10/29/2002	CA2289345C Inverted super regenerative receiver
10/24/2002	WO2002084869A1 Tunable power amplifier matching circuit
10/24/2002	WO2002084868A1 Tunable impedance matching circuit
10/24/2002	WO2001054273A9 Active termination network
10/24/2002	US20020153973 Transconductance device employing native MOS transistors
10/24/2002	US20020153942 Polyphase-notchfilter
10/23/2002	EP1251635A1 Tunable resonance amplifier
10/23/2002	EP1250759A1 Band pass filter from two filters
10/23/2002	EP1250758A1 Band pass filter with improved group delay
10/23/2002	EP1250755A2 Phase-compensated impedance converter
10/23/2002	CN1376329A DC offset calibration for a digital switching amplifier
10/23/2002	CN1376007A Electronic circuit unit
10/22/2002	US6469591 Method to find a value within a range using weighted subranges
10/22/2002	US6469582 Voltage tunable active inductorless filter
10/17/2002	WO2002082649A1 A cmos circuit with constant output swing and variable time delay for a voltage controlled oscillator
10/17/2002	US20020149087 Semiconductor filter system and signal frequency control method
10/16/2002	EP1249071A1 Improved separation of plural band pass filters
10/16/2002	EP1249069A2 Interpolator having dual transistor ranks and ratiometric control
10/16/2002	EP0906681A4 Improved coding system for digital transmission compression
10/15/2002	US6466146 Hybrid low-pass sigma-delta modulator
10/10/2002	US20020146998 Single-to-differential conversion circuit outputting DC-balanced differential signal
10/10/2002	US20020145485 Balanced transmission termination device and receiver unit composed thereof
10/10/2002	US20020145460 High speed, low-power CMOS circuit with constant output swing and variable time delay for a voltage controlled oscillator
10/10/2002	US20020145443 Active termination network
10/09/2002	EP1248367A1 Active circuit simulating an inductance
10/09/2002	EP1247339A2 Polyphase filter
10/08/2002	US6462614 Electrothermal integrator and audio frequency filter
10/03/2002	WO2002060059A3 Method and circuit for maintaining a single stable dc operating point
10/03/2002	WO2002017477A3 Mixer with image reject filter
10/03/2002	US20020141515 Frame pattern detection in an optical receiver
10/03/2002	US20020140869 System and method for providing a low power receiver design
10/03/2002	US20020140523 Signal filter with adjustable analog impedance selected by digital control
10/03/2002	US20020140491 Phase blender and multi-phase generator using the same
10/03/2002	US20020140483 Timing generation circuit and method for timing generation
10/03/2002	US20020140482 Vcc independent time delay circuit
10/03/2002	US20020140461 Low voltage differential signaling output buffer
10/03/2002	US20020140439 Reset circuit
10/02/2002	EP1245080A1 An active polyphase filter with transconductor cross-coupling of filter sections
10/02/2002	CN1372717A Self-tracking filter

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