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| Number | Title | Issue Date |
| 7944248 | Techniques for measuring voltages in a circuit A circuit can include a comparator, a resistor divider, a control circuit, and a multiplexer. The comparator compares an internal supply voltage of the circuit to a selected reference voltage. The resistor divider generates reference voltages. The control circuit re... | 05/17/2011 |
| 7714622 | Integrated circuit input stage An input stage of an integrated circuit, includes a comparator for comparing the voltage of an input signal of the input stage with a reference voltage, and supplying a binary output signal the value of which depends on the result of the comparison of the input sign... | 05/11/2010 |
| 7639049 | Voltage detecting circuit and battery device using same A voltage detecting circuit included in a battery device includes an input voltage comparing circuit that compares a first threshold value voltage or a second threshold value voltage lower than the first threshold value voltage with an input voltage to control the o... | 12/29/2009 |
| 7446574 | Voltage detecting circuit and battery device using same A voltage detecting circuit included in a battery device includes an input voltage comparing circuit that compares a first threshold value voltage or a second threshold value voltage lower than the first threshold value voltage with an input voltage to control the o... | 11/04/2008 |
| 7443208 | Peak detector A peak detector is provided. Current switches are utilized and controlled by output of a plurality of error amplifiers respectively, such that charging currents are adjusted for a charge element in response to operations of the current switches respectively. Therefo... | 10/28/2008 |
| 7433426 | Adaptive hysteresis receiver for a high speed digital signal An adaptive hysteresis receiver processes a high speed digital signal. A differential receiver circuit compares the high speed digital signal to a reference voltage to generate an output signal. A register circuit latches the output signal, according to a clock sign... | 10/07/2008 |
| 7372244 | Temperature reference circuit The invention provides a temperature reference circuit that is adapted to provide a ΔVbe of sufficiently large value that no amplification is required, and therefore any offset contribution is not gained. Using a stacked arrangement of three pairs of tra... | 05/13/2008 |
| 7358813 | Differential operational amplifier Disclosed is a differential operational amplifier that outputs first and second output voltages corresponding to first and second input voltages, the amplifier comprising a differential circuit that operates depending on the first and second input voltages; a contro... | 04/15/2008 |
| 7348835 | Midpoint potential generating circuit for use in a semiconductor device An object of the invention is to improve a defect caused at the time of starting a midpoint potential generating circuit for use in a semiconductor device. A bias generating circuit supplies a grounding potential as a bias voltage Vbias and sets a midpoint potential... | 03/25/2008 |
| 7301376 | Control circuit and method for driving a half-bridge circuit A method is disclosed for controlling a first transistor in a half-bridge circuit which also includes a second transistor. The transistors can be controlled by applying drive voltages to their gates. During a switch-off operation of the second transistor, the amplit... | 11/27/2007 |
| 7289413 | Data slicer and data slicing method for optical disc system In a data slicer and data slicing method for an optical disc system, the data slicer for converting an analog input signal into a digital signal includes a comparator, a duty detector, and a low pass filter. The comparator compares the analog input signal with a fee... | 10/30/2007 |
| 7279753 | Floating base bipolar ESD devices The present invention includes a bipolar ESD device for protecting an integrated circuit from ESD damage. The bipolar ESD device includes a collector connected to a terminal of the integrated circuit, a floating base, and a grounded emitter. When an ESD pulse hits t... | 10/09/2007 |
| 7268720 | Converter networks for generation of MDAC reference signals Reference network embodiments are disclosed that provide reference signals to, for example, switched-capacitor multiplying digital-to-analog converters (MDACs) in pipelined analog-to-digital converters (ADCs). These embodiments are configured to maintain accuracy of... | 09/11/2007 |
| 7239198 | Single gate oxide differential receiver and method An integrated differential receiver includes a single gate oxide differential receiver and an associated switchable voltage supply circuit. The integrated differential receiver determines the desired receiver supply voltage and selects a supply voltage for the singl... | 07/03/2007 |
| 7235985 | Method and device for signal amplitude detection A method and a device (1) for detecting signal amplitudes by removing any DC component from the signal and then shifting the signal by a shift amount so as to produce a shifted signal having a first signal level equal to a reference level (Vref). The shift am... | 06/26/2007 |
| 7224211 | Midpoint potential generating circuit for use in a semiconductor device An object of the invention is to improve a defect caused at the time of starting a midpoint potential generating circuit for use in a semiconductor device. A bias generating circuit supplies a grounding potential as a bias voltage Vbias and sets a midpoint potential... | 05/29/2007 |
| 7222278 | Programmable hysteresis for boundary-scan testing Disclosed is a Boundary-Scan test receiver for capturing signals during board interconnect testing. The test receiver has a comparator with a first input to receive signals during board interconnect testing, and a second input to receive a reference voltage. A progr... | 05/22/2007 |
| 7211993 | Low offset bandgap voltage reference The invention provides a bandgap voltage reference circuit that is adapted to provide a ΔVbe of sufficiently large value that no amplification is required, and therefore any offset contribution is not gained. Using a stacked arrangement of three pairs of... | 05/01/2007 |
| 7205797 | Common mode detection and dynamic correction input circuit A single ended input circuit can receive an input signal and generate a correction voltage corresponding to a common mode voltage of the input signal. A comparison of the input signal can be adjusted in response to the correction voltage. In one arrangement, an inpu... | 04/17/2007 |
| 7197381 | Navigational system and method utilizing sources of pulsed celestial radiation A system and method for navigation utilizing sources of pulsed celestial radiation are provided. A spacecraft, satellite, or other vehicle (12) has a pulse sensor (22) mounted thereto for detecting signal pulses (14) generated by a plurality of ... | 03/27/2007 |
| 7170330 | Hysteresis comparator circuit An input voltage is applied to an inverting input terminal of a comparator having no hysteresis. A first constant voltage is divided by resistors to create a reference voltage. The reference voltage is applied to a non-inverting input terminal of the comparator thro... | 01/30/2007 |
| 7161392 | Comparator feedback peak detector There is disclosed a circuit and a process for detecting peak-to-peak voltage. The circuit comprises a first comparator having an output coupled to a first capacitor, a non-inverting input for receiving a high frequency AC waveform, and an inverting input, a second ... | 01/09/2007 |
| 7161476 | Electronic tire management system An electronic tire maintenance system is provided for measuring a parameter of a device at a first location. The system includes a sensor for measuring the device parameter and generating a data signal representing the measured parameter. The system also includes a ... | 01/09/2007 |
| 7154326 | Dither amplitude correction for constant current drivers In satisfying the above need, as well as overcoming the enumerated drawbacks and other limitations of the related art, the present invention provides an improved switched driver circuit. As disclosed above, there is a need to compensate for the high impedance load c... | 12/26/2006 |
| 7145299 | Power window control system A master controller installed in a master controller box and slave controllers installed in car doors to open and close window glasses of a car are connected by a single wire to each of slave controllers for enabling to send control signals through such a single wir... | 12/05/2006 |
| 7132861 | Amplifier with digital DC offset cancellation feature A high speed, high sensitivity post amplifier as described herein includes a digitally-controlled DC offset cancellation feature. The amplifier circuit is configured to provide DC offset voltage levels in response to a digital control signal, where the digital contr... | 11/07/2006 |
| 7118273 | System for on-chip temperature measurement in integrated circuits A thermal sensor providing simultaneous measurement of two diodes. A first diode and a second diode are coupled to a first current source and a second current source, respectively. The ratio of the currents provided by the two sources is accurately known. The voltag... | 10/10/2006 |
| 7117134 | Method to optimize generation of ultrasound using mathematical modeling for laser ultrasound inspection The invention is directed to a laser ultrasound testing system with adaptive generation of sonic energy signals. The system may detect or test features of the manufactured object such as defects and layer properties. A laser generator initiates a sonic energy signal... | 10/03/2006 |
| 7113744 | Adaptive radio transceiver with a power amplifier An exemplary embodiment of the present invention described and shown in the specification and drawings is a transceiver with a receiver, a transmitter, a local oscillator (LO) generator, a controller, and a self-testing unit. All of these components can be packaged ... | 09/26/2006 |
| 7106120 | PCMO resistor trimmer Using programmable resistance material for a matching resistor, a resistor trimming circuit is designed to reversibly trim a matching resistor to match a reference resistor. The programmable resistance materials such as metal-amorphous silicon metal materials, phase... | 09/12/2006 |
| 7088393 | Output-compensated buffers with source-follower input structure, methods of operating same, and image capture devices using same An output-compensated buffer includes a buffer circuit that receives an input signal and produces an output signal responsive thereto at an output terminal, the buffer circuit including an input source-follower circuit that receives the input signal. A feedback circ... | 08/08/2006 |
| 7084691 | Mono-polarity switchable PCMO resistor trimmer Using programmable resistance material for a matching resistor, a resistor trimming circuit is designed to reversibly trim a matching resistor to match a reference resistor. The programmable resistance materials such as metal-amorphous silicon metal materials, phase... | 08/01/2006 |
| 7079717 | Control circuit for IEEE 1394b optical transmission protocol An On-Off control circuit between the IEEE1394a and IEEE1394b compliant physical layer (PHY) output driver circuitry and the glass fiber optical physical medium dependent (PMD) sub-layer within the architecture of the IEEE 1394b standard addresses the stability issu... | 07/18/2006 |
| 7064594 | Pass gate circuit with stable operation in transition phase of input signal, self-refresh circuit including the pass gate circuit, and method of controlling the pass gate circuit Provided is a pass gate circuit capable of operating stably in a transition phase of an input signal, a self-refresh circuit including the pass gate circuit, and a method of controlling the pass gate circuit. The pass gate circuit according to the present invention ... | 06/20/2006 |
| 7049805 | Radio frequency power measurement An unknown RF power is converted to a voltage by a detector (11). The voltage is converted to a number by a digitiser (12). A separate and fixed RF power reference (14) drives a second detector (15), whose voltage output is also converted... | 05/23/2006 |
| 7049859 | Variable threshold comparator interface circuit A signal processing circuit includes a comparator having a fixed and a variable reference input for detection of a positive quasi-sinusoidal waveform pulse. A signal detection circuit includes a low pass input filter, a voltage input clamp, a variable detection thre... | 05/23/2006 |
| 7038447 | Sensor circuit and method of producing it A sensor circuit includes a sensor element, a current source for supplying an operating current for the sensor element and an amplifier circuit for amplifying a sensor voltage produced by the sensor element when applying the operating current, wherein the amplifier ... | 05/02/2006 |
| 7034579 | High-speed signal level detector A high-speed signal level detector employs the high gain and high bandwidth of an inverter to perform a comparison. The high-speed signal level detector is capable of achieving the desired high-speed level detection without demanding the substantial power consumptio... | 04/25/2006 |
| 7035750 | On-chip test mechanism for transceiver power amplifier and oscillator frequency An on-chip test mechanism for transceiver power amplifier and oscillator frequency for use with the transmitter portion of an integrated RF transceiver. The RF output from the power amplifier in the transmitter is input to a built-in dedicated analog comparator havi... | 04/25/2006 |
| 7020504 | Circuit and method for processing a malfunction of a hall effect switch used for recognition of an open/close state of a flip or a folder type terminal A circuit and method of processing malfunction of a hall effect switch used for recognition of an open/close state of a flip or folder of a terminal. The circuit includes an output terminal of the hall effect switch for outputting a first-state or second-state signa... | 03/28/2006 |
