Patents
Sitemap › H03 - Basic electronic circuitry › H03H - Impedance networks, e.g. resonant circuits; Resonators › H03H 11 - Networks using active elements
Patents for H03H 11 - Networks using active elements (9,098)
10/1978
10/31/1978CA1041654A1 Multiplexer commutated high pass filter
10/24/1978US4122417 Variable equalizer
10/24/1978US4122398 Electronically controllable filter
10/24/1978US4122364 Voltage-controlled phase shifter circuit for an electronic musical instrument
10/24/1978US4122361 Delay circuit with field effect transistors
10/24/1978CA1041241A1 Automatic cable balancing network
10/17/1978US4121183 Programmable attenuator apparatus employing active FET switching
10/03/1978US4118633 Opto-electronic device having coupled emitter and receiver
10/03/1978CA1039819A1 Variable reactance circuit
09/1978
09/26/1978US4117546 Interlaced ccd memory
09/26/1978US4117412 Phonograph preamplifier network with infrasonic cutoff response
09/19/1978US4114498 Electronic musical instrument having an electronic filter with time variant slope
09/12/1978US4114117 Tunable electrical filter network
09/12/1978US4114084 Turbine-generator protection system with electronic sampling filter
09/12/1978US4114054 Coupling circuit using a photocoupler
09/12/1978US4113983 Input filtering apparatus for loudspeakers
09/12/1978US4113385 Transient suppressor network for spectrophotometers and the like
09/05/1978US4112382 Digital sweep circuit for generating sawtooth wave form
08/1978
08/29/1978CA1037573A1 Broad band directional signal generator
08/22/1978US4109214 Unbalanced-to-balanced signal converter circuit
08/22/1978US4109205 Frequency modulation signalling system employing an electrical filter device
08/08/1978US4105945 Active load circuits
07/1978
07/25/1978US4103347 Zig-zag sps ccd memory
07/18/1978US4101881 Multiple state responsive delta-sigma converter and delay line
07/18/1978US4101851 Variable equalizer
07/18/1978US4101849 Adaptive filter
07/11/1978US4100515 Communication circuit having precision capacitor multiplier
06/1978
06/27/1978US4097899 Video record player switching system
06/27/1978US4097824 Variable equalizer
06/27/1978US4097804 Transmitting and receiving diversity system
06/20/1978US4096576 Analogue filter systems
06/20/1978US4096362 Automatic cable balancing network
06/13/1978US4095185 Electrical energy transmission network
06/06/1978US4093926 System for advancing an electrical signal in phase under the control of an external voltage more especially for an engine of a motor vehicle
05/1978
05/30/1978US4092619 Mos voltage controlled lowpass filter
05/02/1978US4087737 Phase shifting circuit
04/1978
04/18/1978US4085459 Multivalued data memory system using a charge coupled element
04/11/1978US4084107 Charge transfer device
03/1978
03/14/1978US4079308 Resistor ratio circuit construction
03/07/1978US4078215 Electronic filter circuit
03/07/1978US4078205 Electronic filter circuit
02/1978
02/28/1978US4077014 Automatic gain control circuit
02/28/1978US4076986 Device for reproducing the charge stored in an input capacitor in a plurality of output capacitors
02/21/1978US4075515 Digital differential amplifier for ccd arrangements
02/14/1978US4074215 Stable gyrator network for simularity inductance
02/14/1978US4074206 Linear output amplifier for charge-coupled devices
02/14/1978US4074087 Bidirectional voice frequency repeater
01/1978
01/31/1978USRE29529 Equalization circuit
01/24/1978US4070615 Compensation indicator for attenuation probe
01/10/1978US4068135 Signal isolating and sampling circuit
01/03/1978US4066914 Electrically variable impedance circuits
12/1977
12/20/1977US4064525 Negative-resistance semiconductor device
12/20/1977US4063450 Voltage controlled electronic filter
12/13/1977US4063187 Equalizer circuit
12/06/1977US4062042 D.C. controlled attenuator
11/1977
11/29/1977US4060771 Method and circuit arrangement for conditioning direct current signals in electric measurand transmitters, particularly electromechanical precision and fine balances
11/08/1977US4057766 Active networks having biquadratic transfer functions
11/08/1977US4057717 Transformer with active elements
11/01/1977US4056792 Wideband diode switched microwave phase shifter network
10/1977
10/25/1977US4055809 Amplifying device
10/18/1977US4054801 Photoelectric coupler
10/11/1977US4053848 Circuit arrangement for combining high frequency power components
10/04/1977US4052679 Phase shifting circuit
09/1977
09/27/1977US4051519 Phase control circuit suitable for use in a tint control stage of a color television system
09/27/1977US4051385 Active networks and signalling equipment
09/20/1977US4050023 General purpose pole-zero single amplifier active filter
09/20/1977US4049958 Programable filter using chirp-Z transform
09/13/1977US4048569 Receiver automatic gain control system
09/13/1977US4048519 Regenerator circuit for CCD elements
09/06/1977US4046961 Conditioning system for transducer signals
08/1977
08/30/1977US4045731 Filter having an automatically controlled variable cut-off frequency
08/23/1977US4044310 Circuitry for generating a sine wave and/or cosine wave from a pulse signal
08/16/1977US4041894 Electronic arrangement for generating two alternating voltages whose phases are shiftable
08/09/1977US4041533 Delay circuitry
08/09/1977US4041520 Uniphase charge transfer device
08/09/1977US4041395 Transmitter performance monitor and antenna matching system
08/02/1977US4039981 Variable impedance circuit
08/02/1977US4039980 Voltage-controlled filter
08/02/1977US4039930 Remotely controlled phase shifting circuit
07/1977
07/19/1977US4037119 Charge transfer delay circuit for analog signals
07/12/1977US4035733 Pulse signal conditioning circuit
06/1977
06/28/1977US4032857 Filter circuit
06/28/1977US4032855 Phonograph preamplifier network with infrasonic cutoff response
06/28/1977US4032852 Filter which tracks changing frequency of input signal
06/28/1977US4032836 Transformer circuit
06/21/1977US4031506 Multiplexer commutated high pass filter
06/21/1977US4031417 Apparatus for coupling a digital data generator to a digital data readout device with electrical isolation therebetween
06/07/1977US4028645 Automatic impedance matching using resistive and reactive diodes
06/07/1977US4028505 Negative impedance repeater for telephone lines
05/1977
05/24/1977US4025867 Capacitance magnification circuit
05/17/1977US4024514 Multiphase series-parallel-series charge-coupled device registers with simplified input clocking
05/10/1977US4023113 Voltage controlled filter
05/03/1977US4021740 Sinewave clock driver with adjustable delay
04/1977
04/26/1977US4020424 Active differential filter network
04/19/1977US4019152 Bias circuit for junction diodes
04/19/1977US4019147 Band pass filter for impulse operation
04/12/1977US4017750 Circuit arrangement for effectively making integrated impedances accurate
04/05/1977US4016481 Unmatched field effect transistors providing matched voltage-controlled resistances
03/1977
03/29/1977US4015224 Active band-pass filter
03/29/1977US4015207 Anti-reciprocal network
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