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Vehicular Impact Signaling Device
An apparatus for the deployment of a visible plume to alert other motorists that a proximate motor vehicle has been involved in a collision.
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| Number | Title | Issue Date |
| 7622991 | Transconductance signal capacity format Operational transconductance amplifiers have a natural signal capacity format in which signal performance can be expressed in terms of fixed percentages. Input signal can be applied to Operational transconductance amplifiers in this natural signal capacity format in... | 11/24/2009 |
| 7616059 | Temperature compensation of small signal gain of an amplifier stage The invention relates to an differential amplifier circuit comprising an amplifier stage comprising a first and a second transistor, the gates of which are connected to differential input terminals of the amplifier stage. The differential amplifier further comprises... | 11/10/2009 |
| 7514997 | Common mode regulation for thermal tail compensation A waveform processing system, and associated methods and apparatus, may include a common mode feedback compensation circuit to adjust a voltage supplied to a differential circuit so as to substantially reduce or eliminate signal distortion associated with thermal ta... | 04/07/2009 |
| 7514998 | Wide-temperature integrated operational amplifier The present invention relates to a reference current circuit. The reference circuit comprises a low-level current bias circuit, a voltage proportional-to-absolute temperature generator for creating a proportional-to-absolute temperature voltage (VPTAT), and a MOSFET... | 04/07/2009 |
| 7369816 | Highly accurate temperature sensor employing mixed-signal components A radio transceiver includes circuitry that enables received RF signals to be down-converted to baseband frequencies and baseband signals to be up-converted to RF signals prior to transmission without requiring conversion to an intermediate frequency. The circuitry ... | 05/06/2008 |
| 7355477 | Transmitter power control loop for high-speed wireless LANs A low cost, robust method and apparatus for controlling the gain of a power amplifier to compensate for changes that are gradual with time. The bias circuit of a power amplifier is sent one of three signals in response to a measurement of the average output power le... | 04/08/2008 |
| 7345542 | Circuit and method for avoiding circuit performance degradation caused by time-variable thermal imbalances A signal processing circuit includes a circuit stage for operating on signals in a signal path of an input signal, including main circuitry for operating on relatively small-value signals and alternative circuitry for amplifying/processing signals during a condition... | 03/18/2008 |
| 7340366 | Method and apparatus of temperature compensation for integrated circuit chip using on-chip sensor and computation means A method and apparatus of temperature compensation for an integrated circuit using on-chip circuits, sensors, and an algorithm. The chip includes an on-chip reference circuit, an on-chip sensor measuring a parameter relative to the reference, and an on-chip computat... | 03/04/2008 |
| 7332963 | Low noise amplifier A low noise amplifier is provided that includes a first circuit block capable of amplifying a first voltage signal that is input to the amplifier. The first circuit block includes a first terminal coupled to a first supply voltage by a variable resistance, and a sec... | 02/19/2008 |
| 7330075 | Output impedance control circuit and control method thereof The invention provides an apparatus and a method for adjusting an output impedance of an output stage. The apparatus comprises a detector for outputting a direct current potential corresponding to the impedance of the output stage circuit. It also comprises a contro... | 02/12/2008 |
| 7327193 | Method for setting an amplifier, and corresponding amplifier circuit An amplifier and method of setting the amplifier is presented. The amplifier is set by setting a mean value between voltage values at first and second outputs of the amplifier. The mean value is pulled towards a certain voltage potential. A circuit node is coupled t... | 02/05/2008 |
| 7317357 | High linearity low noise variable gain amplifier with continuous gain control A variable gain amplifier comprises a plurality of serially connected transistor cells, in which each of the transistor cells has a plurality of connecting terminals. The first terminals of the transistor cells are serially coupled together to receive a first input ... | 01/08/2008 |
| 7307476 | Method for nullifying temperature dependence and circuit therefor A circuit and a method for nullifying temperature dependence of a circuit characteristic. The circuit includes a plurality of transistors configured such that they generate a gate voltage that includes a threshold voltage as a component. The gate voltage is applied ... | 12/11/2007 |
| 7304518 | Track and hold circuit A track and hold circuit (1) comprising:—a linear amplifier (2) receiving a differential analog signal (D+, D−) and being controlled by a first binary clock signal (H+) having a first phase,—the linear amplifier (2) providing a feed-forwar... | 12/04/2007 |
| 7301391 | Filtering variable offset amplifier A current summing FIR filter can be implemented with multiple differential input stages and variable tail currents. The variable tail currents can be used to appropriately weight the present and previous digital input signals. The weighted outputs of the differentia... | 11/27/2007 |
| 7288983 | Method and circuit for providing a temperature dependent current source A programmable temperature compensation circuit having a bandgap circuit for generating a first temperature-independent voltage reference signal, VREF and a second temperature-dependent voltage signal, VTEMP. A two-input buffer amplifier is cou... | 10/30/2007 |
| 7272523 | Trimming for accurate reference voltage A method for trimming reference voltage circuitry includes defining a desired target reference voltage for a set of at least one die. At least two reference voltages are measured for at least two different trim settings associated with a given die of the at least on... | 09/18/2007 |
| 7262661 | Variable gain amplifier with temperature compensation and gain linearity enhancement A variable gain amplifier contains a plurality of differential transistor pairs. A temperature dependent current is generated in the current path of each differential transistor pair. A generated gain control current is converted to a temperature dependent gain cont... | 08/28/2007 |
| 7236055 | Differential amplifier circuit and method for reducing thermally induced offsets caused by large differential signals An amplifier includes a differential amplifier (10) having an input stage (20) for amplifying a differential input signal (Vin), and an output stage (6) coupled to the input stage (20) for producing and output signal (Vout). The input sta... | 06/26/2007 |
| 7227412 | Attenuation cell with an attenuation factor control device Attenuation cell comprising first and second differential pairs of bipolar transistors. A gain control device applies a voltage VA−VB between the bases of both differential pairs and comprises a set of three diodes in which a current IA, a current IB and the sum I... | 06/05/2007 |
| 7215198 | Fully differential current-feedback CMOS/bipolar operational amplifier A fully differential current feedback amplifier suitable for using in a fully differential operational amplifier circuit is disclosed. Symmetrical low input impedance input circuits receive a differential input current and provide a set of four currents that corresp... | 05/08/2007 |
| 7205838 | Circuit structure capable of adjusting gradient of output to temperature variation A circuit structure capable of adjusting gradient of output to temperature variation includes at least a sensing unit for detecting ambient temperature variation and generating a sensing signal, an amplifying unit connected to the sensing unit for increasing a level... | 04/17/2007 |
| 7190218 | Differential or single-ended amplifier and relative control method The method controls, in a feedback mode, a common collector or common drain amplifier, biased with a voltage applied on a bias node produced by a biasing circuit that generates a temperature compensated reference voltage from which the bias voltage applied on the bi... | 03/13/2007 |
| 7167045 | System and method for modifying output power of an information communication system A system for communicating information includes a variable gain amplifier (VGA) responsive to an input signal and a gain control signal for controlling a gain of the VGA. The system also includes a power amplifier responsive to the VGA. An output power level of the ... | 01/23/2007 |
| 7154421 | DNL/INL trim techniques for comparator based analog to digital converters A trimmable comparator. The novel comparator includes a first circuit for comparing first and second input signals and in accordance therewith generating first and second output signals, and a second circuit for adding an adjustable current to the first output signa... | 12/26/2006 |
| 7145389 | Temperature controlled, log-linear gain control circuit for amplifiers A gain control circuit and a variable gain amplifier using the same. In the variable gain amplifier, gain control circuit generates a gain control voltage according to a control voltage, and a gain variable amplification unit is coupled to the gain control circuit a... | 12/05/2006 |
| 7142819 | Circuits and methods for controlling switching noise in switched-mode circuits A method of controlling noise in a pulse width modulation circuit includes varying a sample frequency and a range of information levels, wherein each sample within a data sample stream at the sample frequency represents a level within the range of information levels... | 11/28/2006 |
| 7142005 | Method and apparatus for a reference clock buffer system According to one example embodiment, a buffer, e.g., in a clock/signal distribution apparatus is provided that substantially reduces jitter due to power supply noise. Decoupler and input stage isolates load from the top rail power supply (VDD). In a more ... | 11/28/2006 |
| 7142058 | On-chip temperature compensation circuit for an electronic device A general purpose Darlington pair amplifier circuit, configured in accordance with a preferred embodiment of the invention, utilizes GaAs heterojunction bipolar transistor technology. The amplifier circuit incorporates a temperature compensation circuit at the input... | 11/28/2006 |
| 7138868 | Method and circuit for trimming a current source in a package A method and circuit for trimming a current source packaged with a device can facilitate trimming of the current source without the need for additional pins or dual function pins, resulting in improved accuracy and/or simplified trimming techniques. An exemplary pac... | 11/21/2006 |
| 7135928 | Method for transconductance linearization for DC-coupled applications A Class AB voltage-to-current converter includes a plurality of DC coupled transconductance stages that produce a linearized output and a biasing circuit. The biasing circuit generates a primary bias voltage that is greater than a generated secondary bias voltage. A... | 11/14/2006 |
| 7112948 | Voltage source circuit with selectable temperature independent and temperature dependent voltage outputs A voltage source includes first and second pn junctions which conduct the outputs of respective current sources to establish respective base-emitter voltages Vbe1 and Vbe2 at respective nodes; Vbe1 and Vbe2 can each be gen... | 09/26/2006 |
| 7102443 | Temperature-stabilized amplifier circuit A circuit for amplifying an input voltage (VIN) into an output voltage (VOUT) with an overall gain factor, which is a product of a first gain factor (S) and a second gain factor (R1), comprises means for generating an intermediate signal (I2) from the ... | 09/05/2006 |
| 7091786 | Linear-in-decibel variable gain amplifier A linear-in-decibel variable gain amplifier used for receiving an input voltage and generating an output voltage according to a first controlling voltage and a second controlling voltage. A voltage gain, that is, the ratio between the output voltage and the input vo... | 08/15/2006 |
| 7078972 | Linear decibel-scale variable gain amplifier A linear decibel-scale variable gain amplifier includes an amplifying stage for generating an output voltage according to a differential input voltage, and a gain-controlling stage for outputting a gain-controlling voltage to the amplifying stage according to a firs... | 07/18/2006 |
| 7075368 | Linear-in-decibel variable gain amplifier A variable gain amplifier having a linear decibel-scale gain comprises an amplifying stage for generating an output voltage according to a differential input voltage, and a gain-controlling stage for outputting a gain-controlling voltage to the amplifying stage acco... | 07/11/2006 |
| 7062092 | System, method, and computer software product for gain adjustment in biological microarray scanner Systems, methods, and computer program products are described for adjusting the gain of a scanner. The scanner includes one or more excitation sources, an emission detector having a first gain, and a variable gain element having a second gain. One described method i... | 06/13/2006 |
| 7061318 | System and method for a startup circuit for a differential CMOS amplifier A system is provided for correcting start-up deficiencies in an amplifier. The system includes a comparing device configured to (i) receive a second circuit node voltage and a reference voltage as inputs, (ii) compare the received second circuit node voltage and the... | 06/13/2006 |
| 7026874 | Methods and apparatus for improving the operation of a variable gain amplifier (VGA) Disclosed is an RF transmitter circuit (10), as well as a method for operating the circuit. The RF transmitter circuit includes a VGA (20), that includes circuitry for generating a feedback signal, and a temperature compensation block (18) havin... | 04/11/2006 |
| 7012343 | Resistance multiplier circuit and compact gain attenuator A resistance multiplier circuit coupled to a first node of a first circuit for providing a high-value resistance at the first node includes a first transistor, a second transistor being N times larger than the first transistor, and a resistor. In one embodiment, the... | 03/14/2006 |