Did You Know...
...that the Slinky toy was the result of a failed attempt by engineer Richard James to produce an antivibration device for ship instruments? His goal was to develop a spring that would instantaneously counterbalance the wave motion that rocks a ship at sea. Instead, he developed the Slinky.
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| Number | Title | Issue Date |
| 8130011 | Power IC and driving method thereof A power integration circuit includes: a first transistor having a control electrode connected to a first voltage source to be supplied with a control signal therefrom, the first transistor being connected between a switch and a ground. A sense resistor has one end c... | 03/06/2012 |
| 7847599 | Start signal detection circuit A start signal detection circuit includes a wave-detection circuit 1 outputting a voltage in accordance with an envelope of a radio signal from an output point B, a reference voltage generation circuit 2 outputting a voltage at the output point B at a ... | 12/07/2010 |
| 7573302 | Differential signal comparator There is provided a differential signal comparator which maintains the duty ratio of complementary input signals. The differential signal comparator includes differential amplifier circuits 1 and 2 receiving complementary input signals, a plurality of ... | 08/11/2009 |
| 7564272 | Differential amplifier A differential amplifier is disclosed. The differential amplifier includes a first load element coupled between a first voltage and a first node. A second load element is coupled between the first voltage and a second node. A current source is coupled between a seco... | 07/21/2009 |
| 7394872 | Data receiver and method for receiving data using folded differential voltage sampler A data receiver that is capable of precisely detecting data at high speed even at a high frequency after receiving differential reference signals and data in synchronization with a clock signal, and a method for receiving data, are provided. The receiver includes an... | 07/01/2008 |
| 7372768 | Memory with address management The present invention allows for the reduction in power consumption of memory devices. A memory device in one embodiment prohibits address signal propagation on internal address buses based upon a function being performed by the memory. As such, some, all or none of... | 05/13/2008 |
| 7372307 | Efficient current monitoring for DC-DC converters A current monitoring circuit for DC-DC switching converters includes a track and latch comparator circuit (30) having a preamplifier (32) that is controlled independently of a latch circuit (34). The comparator is small and operates very fast an... | 05/13/2008 |
| 7348807 | Electric circuit for providing a selection signal An electric circuit for providing a selection signal being used to select a control value of a control variable which oscillates, at steady state, about a reference value about a first control value and a second control value with a first period duration comprises a... | 03/25/2008 |
| 7339441 | Circuit and method for quickly turning off MOS device An OTA driving an MOS device needs to turn it off quickly to minimize overshoot during a heavy to light load state. The drains of the MOS device can be used to accelerate turning off the MOS device. A first drain is connected to the gate of the MOS device. A second ... | 03/04/2008 |
| 7336120 | Circuit and method for boosting output current The circuit has an output stage comprising a current source and a current sink. The circuit also has a comparison stage operable to compare a current mirrored from the current source with a current mirrored from the current sink to determine a difference therebetwee... | 02/26/2008 |
| 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 |
| 7332939 | Comparator system and method for comparing an input signal with a reference level using said system A comparator system for comparing a level of an input signal with a level of a reference signal comprises a first comparator configured to input the input signal to one of input terminals thereof and the reference signal to the other of input terminals thereof, a se... | 02/19/2008 |
| 7323793 | System and method for driving one or more loads A system and method for driving a load at a desired operating level. A driver is connected to a load. The load can be selected from a plurality of loads by a selection system, such as a multiplexer, or a single load can be utilized. Feedback from the load is provide... | 01/29/2008 |
| 7283596 | PAM-4 data slicer having symmetrical offset A PAM-4 data slicer includes first, second, and third comparators which provide first, second, and third thresholds, respectively. Each of the comparators has an offset. The first and third comparators have an offset generating arrangement at their outputs to provid... | 10/16/2007 |
| 7262653 | Voltage level detection circuit A voltage level detection circuit is disclosed. The voltage level detection circuit comprises a pull-up unit including a plurality of pull-up devices, each for supplying an internal voltage in response to a signal resulting from a logic operation of a voltage up con... | 08/28/2007 |
| 7236015 | Dynamic biasing circuit for continuous time comparators A method for dynamically adapting the biasing current for a fast switching CMOS comparator is achieved. The difference of the two input signals of said comparator controls the comparator's biasing current, where the biasing current is high only when the difference i... | 06/26/2007 |
| 7233174 | Dual polarity, high input voltage swing comparator using MOS input transistors A differential input comparator circuit comprises an input stage comprising dual polarity input voltages and an output stage adapted to output a differential voltage based on the input voltages, wherein the differential voltage is adapted to be transmitted to a comp... | 06/19/2007 |
| 7233175 | Amplitude limiting circuit An amplitude limiting value can be set to an intended value of a designer and the dependence of the amplitude limiting value on the temperature can be avoided. An amplitude limiting circuit according to the present invention includes a pair of first conductivity typ... | 06/19/2007 |
| 7233176 | CMOS input buffer and a method for supporting multiple I/O standards A CMOS input buffer supporting multiple I/O standards and having a pair of NMOS and PMOS differential receivers, each having a first input connected to an input pad and a second input connected to a reference voltage, a first multiplexer connected to the control ter... | 06/19/2007 |
| 7227414 | 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... | 06/05/2007 |
| 7227388 | Propagation delay characteristic comparator circuit A comparator circuit having improved operational characteristics. A predetermined voltage drop device is provided, such as an exemplary embodiment Schottky diode, having an anode connected to circuit power supply voltage and an output stage of the comparator and a c... | 06/05/2007 |
| 7224153 | Apparatus and method to compensate for effects of load capacitance on power regulator A power regulator has an output for regulated power that is connected to supply power to a load. The load can have various electrical characteristics, including requiring a rapid transient response. The transient response amplitude for the power regulator is decreas... | 05/29/2007 |
| 7215764 | Current sensing echo cancellation device A passive echo cancellation circuit for reducing echoes on a subscriber line includes an output driver adapted to drive a downstream signal on the subscriber line. First sensing circuitry is coupled to the output driver and adapted to sense a current on the subscrib... | 05/08/2007 |
| 7215200 | High-linearity differential amplifier with flexible common-mode range An amplifier includes differential current sensing circuitry and an input bridge. Two paths of the input bridge receive the input signals and provide proportional current flows to the differential current sensing circuitry. The input bridge is configured to provide ... | 05/08/2007 |
| 7215157 | Small-amplitude differential interface circuit First, second and third current generators, and first and second switching devices are provided. Current values of the first and second current generators are equal to each other and a current value of the third current generator is twice as large as the current val... | 05/08/2007 |
| 7208981 | Differential signal generator with built-in test circuitry A circuit and method are provided for performing built-in test of output signal magnitudes of integrated differential signal generator circuitry. In accordance with one embodiment, first upper and lower reference voltages and second upper and lower reference voltage... | 04/24/2007 |
| 7202708 | Comparator with resonant tunneling diodes A comparator uses two resonant tunneling diodes (RTDs) in series with resistors of the latch element of the comparator. By inserting two RTD diodes in series with resistors, the negative resistance of the first and the second RTD diodes reduces the effective RC time... | 04/10/2007 |
| 7183811 | Comparing circuit, comparator, level determining circuit and threshold voltage setting method In a comparing circuit, an input signal switching circuit has a first input terminal, a second input terminal, a first output terminal and a second output terminal. The input signal switching circuit is configured to receive a first input signal inputted to the firs... | 02/27/2007 |
| 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 |
| 7151433 | Combination LED flashlight and garage door transmitter A combination LED flashlight and garage door opener transmitter with at least one LED disclosed that uses a voltage multiple circuit that enables the use of a single AA or AAA battery. The voltage multiple circuit raises the battery voltage from 1.5 volts to approxi... | 12/19/2006 |
| 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 |
| 7142023 | Voltage detection circuit A voltage detection circuit of the invention is composed of the minimum needed number of circuit elements and that permits the temperature characteristic of the reference level for voltage detection to be set arbitrarily. The voltage detection circuit has a first tr... | 11/28/2006 |
| 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 |
| 7123075 | Current mirror compensation using channel length modulation A current compensation circuit for use with a current mirror circuit is disclosed. The current mirror circuit has a current path defined by a first programmable current mirror stage driving a first fanout current mirror stage. The first programmable current mirror s... | 10/17/2006 |
| 7106129 | Semiconductor device less susceptible to variation in threshold voltage A threshold compensating circuit generates a bias potential VBIAS, that is, a threshold voltage of a MOS transistor offset by a given value. A gate-source voltage having compensation for variation in threshold voltage is thus applied to a transistor. By using a diff... | 09/12/2006 |
| 7071772 | Differential amplifier There is provided a differential amplifier including: an output terminal through which an output voltage is outputted in response to an input voltage; a first inverter-type input unit connected between a first node and a second node to receive the input voltage; a s... | 07/04/2006 |
| 7064586 | Input buffer circuit including reference voltage monitoring circuit A buffer circuit includes a differential amplifier, a buffering inverter, and a reference voltage monitoring circuit. The differential amplifier has a reference voltage and a current source as inputs. The buffering inverter has an output of the differential amplifie... | 06/20/2006 |
| 7064607 | Bias system and method A bias device that modifies the bias of a device based on an input signal to the device. The device may have a fixed bias, and the bias device can be connected in parallel with the fixed bias. The device can be an amplifier, such as a linear amplifier or a class AB ... | 06/20/2006 |
| 7061307 | Current mirror compensation circuit and method A current compensation circuit for use with a current mirror is disclosed. The current mirror circuit has a current path defined by a first current mirror stage driving a second current mirror stage, the second current mirror stage is coupled to a supply voltage sou... | 06/13/2006 |
| 7057422 | Comparator An arrangement and a method in an integrated circuit for tuning and setting a value comprising a comparator circuit having a reference voltage input and a variable voltage input is provided to produce a digital value on an output depending on a comparison between th... | 06/06/2006 |
