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| Number | Title | Issue Date |
| 7440861 | Concept of compensating for piezo influences on integrated circuitry The inventive circuitry on a semiconductor chip includes a first functional element having a first electronic functional-element parameter that exhibits a dependence relating to the mechanical stress present in the semiconductor circuit chip in accordance with a fir... | 10/21/2008 |
| 7437260 | Concept of compensating for piezo influences on integrated circuitry A semiconductor chip includes a first functional element having a first electronic functional-element parameter exhibiting a dependence relating to the mechanical stress present in the semiconductor circuit chip, and being configured to provide a first output signal... | 10/14/2008 |
| 7302357 | Concept for compensating piezo-influences on an integrated semiconductor circuit A compensation signal, which derives the mechanical stress, which acts on an integrated semiconductor circuit, from two partial compensation signals, which are generated by semiconductor elements with different stress characteristics, can be determined in more detai... | 11/27/2007 |
| 7242172 | Microprocessor die with integrated voltage regulation control circuit An integrated circuit die includes a microprocessor and a control circuit to control elements of a voltage regulator to supply power to the microprocessor. ... | 07/10/2007 |
| 7209074 | Temperature compensation improvements in radar apparatus A radar-based distance measurement apparatus comprises a microwave circuit comprising a frequency generator which produces a microwave frequency signal, the frequency of which is modulated by an amount determined by a modulation signal applied to the frequency gener... | 04/24/2007 |
| 7084622 | Methods for eliminating magnetic field and temperature related errors in magnetic sensors used for the measurement of coating thickness Methods for eliminating error in magnetic sensors used for measuring a coating thickness caused by static or changing external magnetic fields or temperature. The methods involve measuring an output voltage of a magnetic sensor, corresponding to an internal resistan... | 08/01/2006 |
| 6469490 | Current limiting in power systems using hall effect device A current limiting apparatus and method for use in a power system is provided. Current flows from a power system to a first magnetic field producing contact. A Hall effect device is disposed between the first magnetic field producing contact and another m... | 10/22/2002 |
| 6316124 | Modified InAs hall elements This invention pertains to more sensitive and more stable electronic devices which can sense electrical and magnetic fields. The devices are characterized by InAs channels confined on both sides thereof by a wide band gap AlSb material; protective layers ... | 11/13/2001 |
| 6291907 | Magnetically coupled signal isolator using a faraday shielded MR or GMR receiving element An isolator having a driver circuit which responsive to an input signal drives appropriate signals into one or more coils which are magnetically coupled to one or more corresponding MR or GMR elements whose resistance is variable in response to the magnet... | 09/18/2001 |
| 6054780 | Magnetically coupled signal isolator using a Faraday shielded MR or GMR receiving element An isolator having a driver circuit which responsive to an input signal drives appropriate signals into one or more coils which are magnetically coupled to one or more corresponding MR or GMR elements whose resistance is variable in response to the magnet... | 04/25/2000 |
| 5698909 | Multi-function switch A multi-function switch includes a casing, a key top member, two magnets, two magnetic detectors and a micro-computer. The key top member is mounted on the casing to permit both liner movement and rotational movement in a plane parallel with a bottom face... | 12/16/1997 |
| 5404102 | Method and apparatus for electrically exciting a magneto-resistor device A method and apparatus for electrically exciting a magneto-resistor (MR) device that is adapted to sense variations in a magnetic field. Electric current is delivered to flow through the MR device and produce a voltage drop across the resistance the MR de... | 04/04/1995 |
| 5264783 | Contactless magnet-activated proportional controller An electrical power controller includes an integrated circuit having a Hall element, a Hall voltage amplifier, a ramp signal generator, and a voltage comparator. The output of the ramp generator is connected to one input of the voltage comparator and the ... | 11/23/1993 |
| 5253938 | Thermistor controlled current source versatile temperature sensor An uncomplicated and reliable temperature sensor has a pair thermistors coupled in parallel with a current source that is connected in series with a load resistor. Temperature variations cause a robust current output change that generates a corresponding ... | 10/19/1993 |
| 4931719 | Hall-effect sensor arrangement A Hall-effect magnetic sensor arrangement comprises a sensor element utilizing the Hall-effect and disposed in a magnetic circuit including a magnetic pole unit in an opposing relationship with respect to the magnetic pole unit with a predetermined distan... | 06/05/1990 |
| 4593241 | Hall generator circuit with temperature compensation A temperature compensating circuit for a Hall generator with a positive temperature coefficient of the resistance of the drive circuit path utilizes summation of a voltage representing the drive current as detected across a substantially temperature-indep... | 06/03/1986 |
| 4521727 | Hall effect circuit with temperature compensation A temperature compensation method and circuit for a Hall element or other element with similar characteristics comprising a pair of current carrying branches, one of which includes a resistor. A pair of transistors in the branches are controlled in unison... | 06/04/1985 |
| 4485314 | Power circuit utilizing self-excited Hall effect switch means A power circuit utilizing a switch comprised of Hall-effect-active resistive elements for interrupting a current flow in an inductive energy storage system. Interruption of the flow of current causes a high-voltage pulse which drives the current flow into... | 11/27/1984 |
| 4464625 | Magnetoresistive current detector In a magnetoresistive current detector, which includes a conductor carrying a current to be measured, which in turn generates an external magnetic field, four bridge elements are connected to one another so as to constitute a Wheatstone bridge. The Wheats... | 08/07/1984 |
| 4443716 | Symmetrical-hysteresis Hall switch A magnet is bonded to a skewed-hysteresis Hall switch in such a position that the magnetic flux, normal to the Hall element, is equal to the average of the magnetic flux required to operate and the magnetic flux required to release the Hall switch. This m... | 04/17/1984 |
| 4295118 | Latching relay using Hall effect device A Hall effect switch device converted to a latching relay by having a reversible bias magnet attached thereto adjacent the Hall sensor so as to operate the switch circuit in one polarity of the bias magnet, and release the switch circuit in the other pola... | 10/13/1981 |
| 4292582 | Residual voltage regulating circuit for hall element The present invention relates to a residual voltage regulating circuit for a Hall element improving the dependency on temperature of the output voltage of the Hall element and the secular changes of the Hall element.... | 09/29/1981 |
