Quotables
"Everyone acquainted with the subject will recognize it as a conspicuous failure."
Henry Morton, president of the Stevens Institute of Technology ; Said in 1880 about the light bulb
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7714634 | Pseudo-differential active RC integrator A pseudo-differential active RC integrator is described. The pseudo-differential active RC integrator includes a common-mode feedback sub-circuit to control the common-mode output signal of the integrator. The common-mode feedback subcircuit may be coupled to one or... | 05/11/2010 |
| 7414461 | Linearization technique for current mode filters A circuit is disclosed that compensates for the non-linearity of a current mode real pole producing circuit used to generate poles and zeros in complex filter circuits. The non-linearity of the prior art is compensated by driving one end of the primary pole producin... | 08/19/2008 |
| 7391204 | Sensor signal conditioning circuit A sensor signal conditioning circuit and sensor system incorporating the same. In one embodiment, the signal conditioning circuit includes a DC-coupled detector that converts a sensor signal into a discrete level signal. An AC-coupled detector having a dynamic DC th... | 06/24/2008 |
| 7365588 | Automatic time constant adjustment circuit An automatic time constant adjustment circuit has an error detection circuit and a variable time constant circuit. The error detection circuit detects, based on the resistance of an error reference resistor and the capacitance of an error reference capacitor provide... | 04/29/2008 |
| 7356423 | Apparatus and method for reading out a differential capacity with a first and second partial capacity An apparatus for reading out a differential capacity with a first and second partial capacity includes a first oscillator having a first frequency-determining element connectable to the first partial capacity and a second oscillator having a second frequency-determi... | 04/08/2008 |
| 7323928 | High capacitance integrated circuits An integrated circuit providing high equivalent capacitance ranging from a few tens of picofarads to a few nanofarads is presented. The integrated circuit includes active integrated circuit components, requires no external capacitor, and is substantially insensitive... | 01/29/2008 |
| 7318081 | Band-pass filter and tracking signal processor circuit A band-pass filter includes two operational amplifiers. The gm values of the operational amplifiers are each determined by a current flowing through a corresponding transistor for inducing flow of the drive current. The current flowing through the transistor is adju... | 01/08/2008 |
| 7315200 | Gain control for delta sigma analog-to-digital converter Gain control for delta sigma analog-to-digital converter. A method is disclosed for driving the input of an integrator in a delta-sigma converter having an amplifier with a non-inverting input, an output and a positive input connected to a reference voltage and an i... | 01/01/2008 |
| 7304465 | Power supply circuit capable of efficiently supplying a supply voltage A power supply circuit generates a supply voltage based on an input constant voltage and supplies the supply voltage to a load. A delay circuit delays the input constant voltage. An output circuit generates the supply voltage from the input constant voltage delayed ... | 12/04/2007 |
| 7256068 | Semiconductor package assembly and method for electrically isolating modules A semiconductor package assembly and method for electrically isolating modules, having a capacitor within the semiconductor package assembly. The package assembly and method are suitable for electrically isolating modules according to IEEE 1394. ... | 08/14/2007 |
| 7239196 | Filter circuit An R-2R resistor circuit network 12 used in a filter circuit according to the present invention has a path through which each branch current flows to a next integrating capacitor and a path through which each branch current flows to a low impedance analog mid... | 07/03/2007 |
| 7235184 | Solid state membrane channel device for the measurement and characterization of atomic and molecular sized samples A solid state device is formed through thin film deposition techniques which results in a self-supporting thin film layer that can have a precisely defined channel bored therethrough. The device is useful in the chacterization of polymer molecules by measuring chang... | 06/26/2007 |
| 7221040 | Semiconductor package assembly and method for electrically isolating modules A semiconductor package assembly and method for electrically isolating modules, having a capacitor within the semiconductor package assembly. The package assembly and method are suitable for electrically isolating modules according to IEEE 1394. ... | 05/22/2007 |
| 7176566 | Semiconductor package assembly and method for electrically isolating modules A semiconductor package assembly and method for electrically isolating modules, having a capacitor within the semiconductor package assembly. The package assembly and method are suitable for electrically isolating modules according to IEEE 1394. ... | 02/13/2007 |
| 7166918 | Semiconductor package assembly and method for electrically isolating modules A semiconductor package assembly and method for electrically isolating modules, having a capacitor within the semiconductor package assembly. The package assembly and method are suitable for electrically isolating modules according to IEEE 1394. ... | 01/23/2007 |
| 7144494 | Circuit arrangement for compensating interference signals in the control loop of a linear lambda probe A compensation circuit (KS) is provided between the output of a differential amplifier (Diff_Amp) and the input of a controller (R). The compensation circuit generates a compensation signal, whose characteristic curve approximates to that of the parasitic signal, wi... | 12/05/2006 |
| 7138848 | Switched capacitor integrator system A switched capacitor integrator system includes an input cascoded amplifier circuit; a summing junction; an integrating switched capacitor circuit connected to the output of the input cascoded amplifier circuit and to the summing junction; the integrating switched c... | 11/21/2006 |
| 7116255 | Multiplying digital to analog converter and multipath pipe line analog to digital converter using the same A multiplying digital to analog converter comprising a digital to analog converter having a plurality of capacitors coupled in parallel, applying first signals to the capacitors during a sampling period, and applying second signals to the capacitors during an amplif... | 10/03/2006 |
| 7098729 | Band gap circuit A band gap circuit, including a differential amplifier. In response to fluctuation of the voltage on the band gap circuit output terminal VOUT, a potential difference occurs at an inverting input terminal and a noninverting input terminal of the differential amplifi... | 08/29/2006 |
| 7091584 | Semiconductor package assembly and method for electrically isolating modules A semiconductor package assembly and method for electrically isolating modules, having a capacitor within the semiconductor package assembly. The package assembly and method are suitable for electrically isolating modules according to IEEE 1394. ... | 08/15/2006 |
| 7057393 | System and method for measuring the dielectric strength of a fluid A system is disclosed for monitoring the quality of an internal fluid contained in an apparatus. The system includes a pulse input port, a test gap unit, and a reactive impedance unit. The pulse input port receives a test pulse input signal from a pulse source. The ... | 06/06/2006 |
| 7057438 | Output circuit and semiconductor integrated circuit incorporating it therein An output circuit is provided for outputting, based on a first drive signal, an output signal with an amplitude smaller than a source voltage, comprising: a first type MOS transistor whose gate is impressed with a first drive signal and whose drain outputs a signal;... | 06/06/2006 |
| 7038439 | Off-line converter with digital control A DC to DC converter comprising an energy storage element comprising an energy storage element input and an energy storage element output the energy storage element input coupled to receive a first power level and the energy storage element output providing a second... | 05/02/2006 |
| 7005929 | Loop filter with active capacitor and method for generating a reference A loop filter for a frequency synthesizer provides a lower frequency pole with a smaller capacitor than conventional filters. The loop-filter comprises a resistor and a smaller capacitor in a series-feedback path, and a transconductor to sense a voltage across the r... | 02/28/2006 |
| 6922341 | Semiconductor package assembly and method for electrically isolating modules A semiconductor package assembly and method for electrically isolating modules, having a capacitor within the semiconductor package assembly. The package assembly and method are suitable for electrically isolating modules according to IEEE 1394. ... | 07/26/2005 |
| 6914471 | Method and apparatus for controlling a dual-slope integrator circuit to eliminate settling time effect In a method and apparatus for controlling a dual-slope integrator circuit, a reset signal is provided to a reset input of the integrator circuit to maintain a reset state of an integrating capacitor for a predetermined reset time period in response to an original in... | 07/05/2005 |
| 6842710 | Calibration of integrated circuit time constants A method and system for calibrating a time constant within an integrated circuit. A voltage storage element is charged, and the time required to achieve a reference voltage on the storage element is measured. The measured time is compared to a desired time. It neces... | 01/11/2005 |
| 6836171 | Apparatus for providing continuous integration of an input signal while allowing readout and reset functions An integration circuit includes an input node for receiving an input charge, an integrator having an input terminal coupled to the input node, an output terminal and a first charge storage device coupled between the input and output terminals, an intermediate node c... | 12/28/2004 |
| 6803802 | Switched-capacitor integrator A switched-capacitor integrator eliminates noise caused by the switching of an input signal. For this purpose, the integrator includes a switched-capacitor unit for providing a capacitor with one of a first and a second input voltage in response to clock signals, a ... | 10/12/2004 |
| 6703887 | Long time-constant integrator A differential integrator that uses a matched resistor array to reduce integrating currents and thereby realize a long time constant. The differential integrator includes a differential operational amplifier having inverting and noninverting amplifier inp... | 03/09/2004 |
| 6677799 | Integrator with high gain and fast transient response A multi-stage integrator achieves a relatively high small-signal gain, broad bandwidth, and very clean transient pulse response. Only simple inverters are used, making the design scalable to deep sub-micron with low supply voltages, a rail-to-rail output ... | 01/13/2004 |
| 6657476 | AC-coupled sensor signal conditioning circuit A method and apparatus for minimizing errors in a sensor device due to signal amplitude variation are disclosed herein. A signal output from the sensor device is amplified and, thereafter, AC-coupled to a comparator such that the amplification and AC-coup... | 12/02/2003 |
| 6650177 | System and method for tuning an RC continuous-time filter Methods and systems for tuning an RC continuous-time filter are disclosed. In this regard a representative system for tuning an RC continuous-time filter includes a coarse-tuned resistive element coupled to an input of the filter for varying the cut-off f... | 11/18/2003 |
| 6608504 | Sample-and-hold amplifier circuit and pipelined A/D and D/A converters using sample hold amplification circuit A sample-and-hold amplifier circuit has a switch, provided between an operational amplifier stage and an inverting amplifier stage, for connecting or cutting off the connection of the operational amplifier stage and the inverting amplifier stage. During t... | 08/19/2003 |
| 6608516 | Adjustable time constant integrator A variable time constant integrator includes an amplifier configured to generate an output signal, a capacitor coupled to provide feedback to the amplifier, and a variable gain element coupled to the output of the amplifier and to the capacitor. The varia... | 08/19/2003 |
| 6593802 | On-chip automatic tuning technique A stable, process independent RC time constant for precision frequency response in automatic tuning is generated using a feedback loop employing a voltage controlled resistor to force current through the output node to equal a reference current. The only ... | 07/15/2003 |
| 6577180 | Correction system of resistance inaccuracy in an integrated circuit process A component inaccuracy correction system has a current source capable of outputting two currents with a fixed ratio, a voltage dividing circuit formed on the integrated circuit having at least an output end capable of receiving a current of the current so... | 06/10/2003 |
| 6570432 | Integrator topology for continuous integration Provided are integrator circuit topologies that enable continuous integration without reset of the integrator circuit. One such integrator circuit includes a first integrator and a second integrator, each of the two integrators having a non-inverting term... | 05/27/2003 |
| 6538491 | Method and circuits for compensating the effect of switch resistance on settling time of high speed switched capacitor circuits A switched capacitor circuit includes an operational transconductance amplifier, a feedback stage having a first switched capacitor and a first time constant, and a load stage having a second switched capacitor and a second time constant. The first time c... | 03/25/2003 |
| 6501322 | Analog integrator circuit In integrators which integrate the analog photocurrent of a photodiode (PD), the amplification-bandwidth product is relatively small on account of the parallel parasitic capacitance (Cp) of the photodiode (PD). However, in a design with a switched capacit... | 12/31/2002 |
