1
Heinrich Pfeifer, Werner Reich, Ulrich Theus: Circuit arrangement for averaging signals during pulse-density D/A or A/D conversion. Deutsche ITT, Thomas L Peterson, August 7, 1990: US04947171 (57 worldwide citation)

In a pulse-density D/A or A/D converter, improved averaging of a pulse-density-modulated (PDM) signal in the presence of a jittering clock signal is achieved by applying the PDM signal to the serial input of an n-stage shift register whose parallel output serves to control n state signals. The shift ...


2
Ulrich Theus, Mario Motz: Offset compensation for magnetic-field sensor with Hall effect device. Deutsche ITT, Plevy & Associates, February 18, 1997: US05604433 (50 worldwide citation)

The invention relates to a magnetic-field sensor with a Hall effect device, a power supply, and an evaluating facility, which can be supplied with a Hall signal from the Hall-effect device and comprises an input amplifier, a storage element, and a signal superposition unit. To improve the accuracy o ...


3
Andreas Menkhoff, Ulrich Theus: Clock generator for generating a system clock causing minimal electromagnetic interference. Deutsche ITT, Plevy & Associates, December 16, 1997: US05699005 (26 worldwide citation)

A clock generator circuit for clock controlled electronic devices, which causes minimal electromagnetic interference in adjacent electronic equipment. The clock generator circuit includes a clock source for generating a basic clock signal having a predetermined frequency. The basic clock signal defi ...


4
Soenke Mehrgardt, Ulrich Theus: Monolithic integrated digital-to-analog converter. Deutsche ITT, T L Peterson, December 13, 1988: US04791406 (18 worldwide citation)

A monolithic integrated digital-to-analog converter makes use of rotating current-source control (dynamic element matching). After the conversion of a digital input signal into a code containing a sequence of first binary conditions corresponding to the numerical value of the input signal (so-called ...


5
Ulrich Theus: Monolithic integrated differential amplifier with digital gain setting. Deutsche ITT, Thomas L Peterson, February 8, 1994: US05285169 (18 worldwide citation)

The present invention is a monolithic integrated differential amplifier having an operational amplifier and a digitally controlled means for setting the gain of said differential amplifier wherein the gain is adjustable by means of a resistive feedback network formed by a resistor chain whose taps a ...


6
Arnold Uhlenhoff, Ulrich Theus: Current-regulating circuit having parallel control paths. Deutsche ITT, Thomas L Peterson, February 8, 1994: US05285148 (17 worldwide citation)

The present invention is a circuit for regulating the current across an impedance load. This current regulating circuit is comprised of a main current path including a first control path, a reference-current path including a similar, second control path, and a control means including a pulse generat ...


7
Ulrich Theus, Mario Motz: Voltage regulator. Deutsche ITT, Plevy & Associates, April 23, 1996: US05510699 (16 worldwide citation)

A voltage regulator contains a reference which provides a value for comparison by an error amplifier which generates a control signal in response to the deviation of the output to the reference. As many stages of the circuit as possible are connected to fixed potential points. The fixed potential po ...


8
Ulrich Theus, Hans Josef Orben: Clocked CMOS circuit with at least one CMOS switch. Deutsche ITT, Thomas L Peterson, January 31, 1989: US04801819 (15 worldwide citation)

To avoid interference signals caused by overlapping edges of a switching signal for driving p-channel-transistor/n-channel-transistor pairs, a drive circuit contains a first series combination of the current paths of a first p-channel transistor, a first n-switching transistor, and a first n-channel ...


9
Ulrich Theus: CMOS transconductance amplifier with floating operating point. Deutsche ITT, Thomas L Peterson, January 26, 1993: US05182525 (14 worldwide citation)

A CMOS transconductance amplifier with a floating operating point which has low quiescent-current consumption for a voltage-to-current converter. On the other hand, the current yield of the output transistor in an output current mirror for a load current is high. The low quiescent-current consumptio ...


10
Ulrich Theus, Mario Motz: Monolithic integrated sensor circuit. Deutsche ITT, Plevy & Associates, December 1, 1998: US05844427 (13 worldwide citation)

A monolithic integrated sensor circuit is disclosed comprising a sensor system for generating an electronic sensor signal; a supply unit for the sensor system; an amplifying stage for amplifying the sensor signal; a plurality of inverting devices in the signal path of the amplifying stage which reve ...