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"What, sir, would you make a ship sail against the wind and currents by lighting a bonfire under her deck? I pray you, excuse me, I have not the time to listen to such nonsense."
Napoleon Bonaparte ; When told of the Robert Fulton steamboat
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| Number | Title | Issue Date |
| 8143921 | Latched comparator and methods therefor A compare cycle of a comparator includes a precharge phase and a compare phase. During the precharge phase, a node of the comparator is precharged to a defined voltage. In addition, during the precharge phase an input transistor of the comparator is decoupled from t... | 03/27/2012 |
| 7973569 | Offset calibration and precision hysteresis for a rail-rail comparator with large dynamic range A rail-rail comparator having an input stage with independent positive and negative differential voltage offset compensation tracks changes in Gm (transconductance) of the input stage. By tracking the changes in Gm (transconductance) of the input stage, hysteresis o... | 07/05/2011 |
| 7863941 | Techniques for canceling offsets in differential circuits A circuit includes a differential circuit that generates a differential output signal at first and second output nodes. The circuit also includes a first variable capacitor coupled to the first output node of the differential circuit, and a second variable capacitor... | 01/04/2011 |
| 7532041 | Systems and methods for hysteresis control in a comparator Various systems and methods for comparing signals are disclosed herein. For example, some embodiments of the present invention provide comparator circuits with programmable hysteresis. Such circuits include a comparator input circuit that receives two inputs to be c... | 05/12/2009 |
| 7423457 | Fast settling current steering circuit A selector switch may be controlled by a single-ended control signal for steering a current through a load or through an auxiliary line. The selector switch may include a first terminal to be coupled to the load, and a second terminal to be connected to the auxiliar... | 09/09/2008 |
| 7400279 | Circuits and methods with comparators allowing for offset reduction and decision operations Circuits and methods may be improved by using ADCs that compensate for the effect of comparator input offset on comparator decisions. Offset compensation may be implemented in an ADC by using an amplifier section between the input of the ADC and a comparator section... | 07/15/2008 |
| 7375559 | Differential comparator with a replica input stage to set the accurate bias current for improved common mode rejection Methods and apparatus for properly biasing differential comparators are provided. Using a feedback relationship, a bias for a main stage that receives a first differential input of the comparator is produced. Separately, a feedback relationship produces a bias for a... | 05/20/2008 |
| 7373528 | Increased power for power over Ethernet applications According to one embodiment of the invention, a method for supplying power over Ethernet includes determining whether a first port of power sourcing equipment is supplying current to a power over Ethernet device in a predetermined current range. The method also incl... | 05/13/2008 |
| 7366297 | Method and system for converting alternating current to ethernet in-line power According to one embodiment, a method for converting alternating current voltage signals to Ethernet in-line power includes converting an alternating current voltage signal to an approximate direct current voltage signal, adding at least one odd harmonic of the appr... | 04/29/2008 |
| 7352207 | Output driver with common mode feedback A complementary metal-oxide semiconductor output driver provides a differential output signal having a particular differential voltage swing and a particular common mode voltage to a differential output node for various types of load circuits coupled to the differen... | 04/01/2008 |
| 7348809 | Input buffer In one embodiment, the present invention includes an input buffer with a common gate amplifier having input terminals coupled to receive an incoming common mode voltage. The common gate amplifier may be configured to receive the incoming common mode voltage over a w... | 03/25/2008 |
| 7336108 | Semiconductor integrated circuit with stepped-up voltage pump circuit A semiconductor integrated circuit includes a pump circuit configured to raise an external power supply voltage to generate a stepped-up voltage, and a detector circuit configured to detect the stepped-up voltage generated by the pump circuit to control activation/d... | 02/26/2008 |
| 7321266 | Current-matching variable gain amplifier A current-matching variable gain amplifier is provided. The amplifier comprises a reference current source, at least one cascode amplifier, a matching circuit, a control circuit, and at least one first blocking circuit. The reference current source provides a refere... | 01/22/2008 |
| 7317358 | Differential amplifier circuit The present invention provides a differential amplifier circuit wherein the center voltages of outputs are not affected by a variation in source potential. A node located in the middle point of a resistor connected between complementary output nodes of an amplifying... | 01/08/2008 |
| 7315095 | Voltage regulating apparatus supplying a drive voltage to a plurality of loads In a soft start period after power-on, a voltage regulating apparatus checks LED by LED to determine whether the LED is mounted on a position to receive a drive voltage. After the soft start period, the voltage regulating apparatus monitors the driving status of eac... | 01/01/2008 |
| 7312643 | Differential current driver and data transmission method A differential current driver has a current source that supplies current selectively to two output terminals according to data to be transmitted. A comparison circuit compares the current output by the current source with a reference value and generates a control si... | 12/25/2007 |
| 7301371 | Transmitter of a semiconductor device Embodiments of the present invention provide a transmitter of a semiconductor device, which can output signals corresponding to input signals having various common mode levels and amplitudes. The transmitter may include a pre-driver unit, main driver unit, and a con... | 11/27/2007 |
| 7301386 | Apparatus for improved delay voltage level shifting for large voltage differentials A voltage level shifting device for translating a lower operating voltage to a higher operating voltage includes a first input node coupled to a first pull down device and a second input node coupled to a second pull down device. The second node receives a complemen... | 11/27/2007 |
| 7292083 | Comparator circuit with Schmitt trigger hysteresis character A circuit and a method are provided to produce a novel comparator with Schmitt trigger hysteresis character. The circuit includes a current source which controls the magnitude of current flow through this comparator circuit. It has a first logic device which is turn... | 11/06/2007 |
| 7288980 | Multiple mode clock receiver A multiple mode clock receiver including first and second input AC-coupled capacitors, first and second voltage dividers and a differential amplifier. The voltage dividers each include first and second junctions, respectively, coupled to the first and second AC-coup... | 10/30/2007 |
| 7279953 | Current switch and method of driving the same A method and apparatus for driving a current switch with a differential drive signal monitors both the temperature of the switch and the current through the switch. The method and apparatus dynamically control the amplitude of the drive signal as a function of the s... | 10/09/2007 |
| 7279939 | Circuit for differential current sensing with reduced static power Returning to FIG. 2, sense circuit 201 represents the circuit that must sense the signaling on an interconnect. NMOS device 202 is always on so that there is a continuous path to ground whenever PMOS driver 204 is on. Since leakage power ... | 10/09/2007 |
| 7274221 | Comparator circuit An improved comparator circuit and associated methods are disclosed. In one embodiment, the comparator circuit comprises two voltage-to-time converter circuits, one for each input voltage to be compared, and an arbiter circuit for receiving the time-converted output... | 09/25/2007 |
| 7236016 | Low voltage comparator An integrated circuit comparator comprises a differential amplifier, a source follower circuit coupled to a gate terminal of a first transistor in the differential amplifier, and an output circuit. One or more source follower circuits may be utilized in connection w... | 06/26/2007 |
| 7230489 | System and apparatus for receiver equalization In some embodiments an apparatus includes an amplifier, a first inverter having an input coupled to an output of the amplifier, and a second inverter having an input coupled to an output of the first inverter and an output, where the output of the second inverter is... | 06/12/2007 |
| 7227399 | Detector of differential threshold voltage A differential threshold voltage level detection circuit receives a differential voltage pair as an input, applying each component of the differential pair to an individual voltage shifting circuit. Each voltage shifting circuit is configured with a regulated curren... | 06/05/2007 |
| 7209006 | Differential amplifier with increased common mode loop gain at low frequencies A differential amplifier circuit with feedback to increase common mode loop gain at low frequencies. ... | 04/24/2007 |
| 7206368 | Compensating jitter in differential data signals A method for compensating jitter in received differential data signals includes recovering a first clock signal from the received differential data signals. Re-timed differential data signals are generated based on the received differential data signals and the firs... | 04/17/2007 |
| 7199638 | High speed voltage level translator A high speed voltage level translator having minimum power dissipation and reduced area, specifically in the sub 0.1 micron domain, includes a transistorized arrangement to receive a low voltage input signal and to control current in the translated high level voltag... | 04/03/2007 |
| 7196556 | Programmable logic integrated circuit devices with low voltage differential signaling capabilities A programmable logic device is equipped for low voltage differential signaling (“LVDS”) by providing an LVDS input buffer and/or an LVDS output buffer on the device. I/O pins on the device that are used together in pairs for LVDS can alternatively be used indivi... | 03/27/2007 |
| 7190214 | Amplifier apparatus for use with a sensor An apparatus for use with a sensor includes first and second signal treating circuit segments coupled with the sensor for presenting a substantially balanced differential signaling representation of output signals from the sensor. Each respective signal treating cir... | 03/13/2007 |
| 7183813 | Differential signaling driver The present invention provides a Differential Signaling line driver including a pre-emphasis circuit, which boosts the output drive current without any delay whenever there is a transition in the input signal to the driver, using the input signal itself to provide t... | 02/27/2007 |
| 7173458 | Semiconductor device A semiconductor device includes a differential signal output circuit that outputs a differential signal, an amplitude control signal generation circuit that generates an amplitude control signal to control an amplitude of the differential signal for the differential... | 02/06/2007 |
| 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 |
| 7148699 | Technique for calibrating electronic devices A technique for calibrating a second electronic device using a first electronic device having a reference characteristic is disclosed. In one particular exemplary embodiment, the technique may be realized as a method for calibrating a second electronic device using ... | 12/12/2006 |
| 7145494 | Differential comparator, analog/digital conversion apparatus and imaging apparatus A differential comparator which outputs positive and/or negative logic signals to an output terminal according to the coincidence/non-coincidence of first and second input signal levels inputted to first and second input terminals, respectively, comprises an offset ... | 12/05/2006 |
| 7138835 | Method and apparatus for an equalizing buffer A programmable, equalizing buffer is provided having feedback transistors used to vary the transfer function of the equalizing buffer, such that a low pass response of a transmission channel is substantially equalized. A zero in the buffer's transfer function is est... | 11/21/2006 |
| 7130175 | Monolithic integratable circuit arrangement for protection against a transient voltage At least one or more terminals of an integrated circuit, such as a low- or high-side driver stage, are protected against transient or over-voltages by two pairs of diodes. A first pair of diodes includes a regular diode (D1 or D1′) and a Zener-diode (ZD1 or ZD1′... | 10/31/2006 |
| 7126385 | Differential inverter circuit An improved differential inverter comprising a differential inverter having a differential input for receiving a first input signal and a second input signal, said inverter further comprising a differential control input for receiving a first control signal and a se... | 10/24/2006 |
| 7123080 | Differential amplification input circuit An input circuit has a differential amplification circuit which converts a differential signal to a single end signal to output the single end signal, an attenuation circuit which attenuates a first input signal to output the attenuated signal to the differential am... | 10/17/2006 |
