Quotables
"It is my heart-warmed and world-embracing Christmas hope and aspiration that all of us, the high, the low, the rich, the poor, the admired, the despised, the loved, the hated, the civilized, the savage (every man and brother of us all throughout the whole earth), may eventually be gathered together in a heaven of everlasting rest and peace and bliss, except the inventor of the telephone. "
Mark Twain ; Christmas greetings, 1890
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| Number | Title | Issue Date |
| 7800439 | High speed preamplifier circuit, detection electronics, and radiation detection systems therefrom A preamplifier circuit for processing a signal provided by a radiation detector includes a transimpedance amplifier coupled to receive a current signal from a detector and generate a voltage signal at its output. A second amplification stage has an input coupled to ... | 09/21/2010 |
| 7795965 | Cryogenic receiving amplifier and amplifying method The present invention discloses a cryogenic receiving amplifier using a gallium nitride high electron mobility transistor (GaN HEMT) as an amplifying device in a cryogenic temperature environment. The cryogenic receiving amplifier includes an input matching circuit ... | 09/14/2010 |
| 7418213 | Transimpedance amplifier with integrated filtering and reduced parasitic capacitance A transimpedance amplifier (TIA) with integrated filtering. A capacitance is integrated into the TIA and connected to the power supply and to an internal ground of the TIA. Noise on the power supply of the transimpedance amplifier is filtered by the capacitor such t... | 08/26/2008 |
| 7406268 | Optical receiver circuit An optical receiver circuit is constructed to be immune to interference from external interference signals. The optical receiver circuit includes a differential amplifier having an optical reception device connected to one input of the differential amplifier. The op... | 07/29/2008 |
| 7373091 | Multicasting optical switch fabric and method of detection based on novel heterodyne receiver The inventors propose herein a switch fabric architecture that allows broadcasting and fast channel access in the ns-range. In various embodiments of the present invention, 10 Gb/s receiver modules are based on a novel heterodyne receiver and detection technique, wh... | 05/13/2008 |
| 7330668 | Low noise light receiver The low noise light receiver comprises a light sensor for generating a sensor signal, the sensor signal comprising a wanted signal resulting from a light source and an interfering signal resulting from interfering light; an optical filter apparatus for reducing the ... | 02/12/2008 |
| 7330554 | Volume control apparatus and method thereof A volume control apparatus and a method enable the volume of sound output from a sound output system to be adjusted in units of an increase/decrease interval set by a user, the volume control apparatus controlling the volume of sound output from the sound output sys... | 02/12/2008 |
| 7317350 | Transresistance amplifier for a charged particle detector Disclosed is a transresistance amplifier for a charged particle detector, comprising a variable input resistance, which may be a phototransistor (IC3), a voltage amplification stage (IC1) and control means (IC3), operable to vary the variable in... | 01/08/2008 |
| 7298978 | Method and apparatus for optimizing decision level of signal output from optical receiver An optical receiver in an optical communication system, and more particularly, to a method and an apparatus for optimizing a decision level of a signal output from an optical receiver to obtain a minimum bit error rate (BER) by measuring output characteristics of th... | 11/20/2007 |
| 7288754 | Optical receiver An optical receiver. The optical receiver includes a photodiode, a differential transimpedance amplifier, a transistor, and a current source. When the photodiode receives an optical signal, a current signal transmitted from a cathode of the photodiode to an anode th... | 10/30/2007 |
| 7286060 | Indicators for vacuum tube replacement devices A vacuum tube replacement device includes an indicator. The indicator can be arranged to provide audible and/or visual indication of system performance, function, status, or any other desired indication. The vacuum tube replacement device is pin-for-pin compatible w... | 10/23/2007 |
| 7276684 | High gain photo cell with improved pulsed light operation A photocell system includes a current control circuit that provides an offset voltage. Each photocell in a photocell array includes an opto-electrical converter receives the offset voltage such that the opto-electrical converter establishes a DC operating point. In ... | 10/02/2007 |
| 7242871 | High dynamic range optical receiver An optical receiver, for use for instance in an analog optical communications system such as a return path in cable television, operates over a wide range of input power to its photodetector. This is accomplished by providing in the optical receiver a series of RF a... | 07/10/2007 |
| 7223957 | Sensor including circuitry for recovering time-varying information and removing DC offsets An amplification circuit for implementation in sensors such as photodetectors and other devices, and related method of amplification, are disclosed. In some embodiments, the amplification circuit includes a first amplifier that receives an input signal at least indi... | 05/29/2007 |
| 7212749 | Signal receiver having wide band amplification capability An Improved Signal Receiver Having Wide Band Amplification Capability is disclosed. Also disclosed is a receiver that is able to receive and reliably amplify infrared and/or other wireless signals having frequency bandwidths in excess of 40 MHz. The receiver of the ... | 05/01/2007 |
| 7205845 | Amplifier circuit for converting the current signal from an optical receiving element into a voltage signal An amplifier circuit for converting the current signal from an optical receiving element into a voltage signal. The amplifier circuit includes a transimpedance amplifier having a differential amplifier and a feedback resistor, a first adjustable resistor which is co... | 04/17/2007 |
| 7176698 | Voltage sensing device and associated method A transformer circuit is disclosed that minimizes the temperature dependence of an output voltage. A first embodiment of the present invention includes a primary winding coupled to receive a voltage to be sensed and a center-tapped secondary winding coupled at a cen... | 02/13/2007 |
| 7176755 | Transistor-based interface circuitry Among the embodiments of the present invention is an apparatus that includes a transistor, a servo device, and a current source. The servo device is operable to provide a common base mode of operation of the transistor by maintaining an approximately constant voltag... | 02/13/2007 |
| 7177222 | Reducing power consumption in a data storage system An apparatus and associated method for reducing power consumption in an electronic circuit comprising a refresh load device being employed alternatively between an operational mode and a state refresh mode. A supply voltage level to the refresh load device is adjust... | 02/13/2007 |
| 7176439 | Method for manufacturing photodetector for weak light This invention provides a method for manufacturing a circuit for photon number counting without destroying a FET within the circuit by manufacturing a photodetector for weak light, the photodetector for weak light comprising a circuit on a substrate, the circuit com... | 02/13/2007 |
| 7149497 | Radio signal receiving device The radio signal receiving device that has an input terminal for inputting an input signal and an output terminal for amplifying the signal inputted to the input terminal and then outputting the signal, comprises an insulating container comprising the input terminal... | 12/12/2006 |
| 7126412 | Preamplification circuit This preamplification circuit comprises a first circuit section, second circuit section the input signal of which is the output signal of the first circuit section, and third circuit section which is connected with the input section of the first circuit section and ... | 10/24/2006 |
| 7115868 | Photodetector for weak light with UV transparent substrates The present invention provides a photodetector for weak light that can prevent noise from impurities, prevent electrodes from disconnecting from the substrate, and can be easily cooled; the present invention further provides a photodetector for weak light that can c... | 10/03/2006 |
| 7110531 | Isolation system with analog communication across an isolation barrier An isolation system with analog communication across an isolation barrier includes an isolation barrier circuit having at least one isolation element; a digital to analog circuit having an analog output connected to the isolation barrier and an input for receiving a... | 09/19/2006 |
| 7098434 | Method for extracting measuring signals from a multi-channel photomultipier and corresponding circuit The invention relates to a method for extracting measuring signals from a multi-channel photomultiplier, characterised by the following steps: a measuring signal which is integral for the channels of the photomultiplier is extracted at the dynode in order to record ... | 08/29/2006 |
| 7068951 | Optical signal receiver with RPM, data and data bar output An optical signal receiver system provides for five (5) signals, namely VCC, Ground, RPM (Receiver input Power Monitor), Data, and Data Bar outputs, using only the four external pins of a conventional TO-style can package. To provide for five signals on only four pi... | 06/27/2006 |
| 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 |
| 7019589 | Transimpedance amplifier A transimpedance amplifier includes a first amplifier, a first MOS resistor device and a first voltage divider circuit. The source terminal of the first MOS resistor device is coupled to the first amplifier inverting input. The voltage divider circuit is coupled bet... | 03/28/2006 |
| 6999687 | Optical receiving device An optical receiving device. The optical receiving device has a photodiode, transimpedance amplifier, and a feedback component. The photodiode has a first terminal coupled to a voltage source and a second terminal. When detecting an optical signal, the photodiode ge... | 02/14/2006 |
| 6995610 | Amplifier and radio frequency tuner An LNA for use as an input stage of a radio frequency tuner comprises an inverting amplifier stage and a transconductance stage. The amplifier stage has an input connected via an input resistance to an input of the amplifier and via a feedback resistance to an outpu... | 02/07/2006 |
| 6977540 | High-speed isolated port A port isolator apparatus includes an optical isolator circuit that electrically isolates an input circuit from a high-speed output circuit. The input circuit uses a transistor to control the current flow of a data signal into the optical isolator. The optical isola... | 12/20/2005 |
| 6977528 | Event driven dynamic logic for reducing power consumption Methods and circuits are described for reducing power consumption within digital logic circuits by blocking the passage of clock signal transitions to the logic circuits when the clock signal would not produce a desired change of state within the logic circuit, such... | 12/20/2005 |
| 6944559 | Channel isolation by switched grounds A signal acquisition instrument, such as an oscilloscope, having an input stage that is referenced to a user's ground is disclosed. Information gathered by the input stage is stored in a storage element powered by a floating power supply that is referenced to the us... | 09/13/2005 |
| 6937102 | Low bias current/temperature compensation current mirror for linear power amplifier A power amplifier circuit whose performance is optimized by operating its stages in substantially close to a Class B mode by reducing quiescent current during low driver signal levels. As the driver signal amplitude increases, the operation of the amplifier is confi... | 08/30/2005 |
| 6933771 | Optically generated isolated feedback stabilized bias The present invention provides a bias generation circuit in which the voltage of electrically isolated circuits are stabilized by providing a photovoltaic diode in each circuit, a common light source uniformly positioned to provide equivalent energy to each photovol... | 08/23/2005 |
| 6915083 | Signal receiver having wide band amplification capability An Improved Signal Receiver Having Wide Band Amplification Capability is disclosed. Also disclosed is a receiver that is able to receive and reliably amplify infrared and/or other wireless signals having frequency bandwidths in excess of 40 MHz. The receiver of the ... | 07/05/2005 |
| 6911644 | Automatic gain control device for a burst-mode optical receiver An automatic-gain-control device in an optical receiver is provided and includes a pre-amplifier for converting a current signal outputted from an optical detector to a voltage signal and a bottom level detector for detecting the bottom level from the output of the ... | 06/28/2005 |
| 6844779 | Optically isolated bias control circuit Optically isolated bias control circuit which provides bias current for switching circuits. Invention is amenable to high speed switching control with instantaneously variable pulse widths and duty cycles. Invention can be operated from DC upward in frequency, limit... | 01/18/2005 |
| 6834165 | Parallel opto-electric structure for high sensitivity and wide bandwidth optical transceiver An optical receiver circuit including a plurality of PIN diodes, each associated with a dedicated element transimpedance amplifier, the outputs of the element transimpedance amplifiers being connected to a summing amplifier which sums the voltages output from the el... | 12/21/2004 |
| 6833762 | Transimpedance ampifier Disclosed is a transimpendance amplifier comprising a single ended input terminal to receive an input signal from a photodiode and differential output terminals. A circuit coupled between the single ended input terminal and a differential output terminal may vary th... | 12/21/2004 |
