| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 21 | Displaying amplifier output amplitude | US322923 | 1973-01-12 | US3953806A | 1976-04-27 | Joseph L. Veranth |
| A sequence of light emitting diodes are progressively illuminated with progressively increasing instantaneous amplifier output signal amplitude with the last pair of light emitting diodes illuminated simultaneously to indicate amplifier clipping. | ||||||
| 22 | Radiation sensing circuit | US44882674 | 1974-03-07 | US3872329A | 1975-03-18 | DODSON III GEORGE BERTRAM |
| A phototransistor provides an output current via a circuit node to a current path. An operational amplifier connected at its noninverting input terminal to ground and at its inverting input terminal to the node provides a feedback signal to the base of the phototransistor in a sense to establish the node at a virtual ground for maintaining the phototransistor output current equal to a fixed current withdrawn by the current path.
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| 23 | Distortion compensation of optoelectronic devices | US30719663 | 1963-09-06 | US3290504A | 1966-12-06 | VALLESE LUCIO M; MARVIN KING |
| 24 | Electro-optical device and circuitry | US86104059 | 1959-12-21 | US3056031A | 1962-09-25 | MCNANEY JOSEPH T |
| 25 | Electroluminescent device and networks | US58502756 | 1956-05-15 | US2904696A | 1959-09-15 | ELLIOTT JAMES F; HALSTED RICHARD E |
| 26 | Amplifier | US53896744 | 1944-06-06 | US2418516A | 1947-04-08 | ERIC LIDOW |
| 27 | Thermistor as amplifier for low frequency signals | US42231641 | 1941-12-10 | US2360233A | 1944-10-10 | HUSSEY LUTHER W |
| 28 | 포토다이오드들에 대한 회로 아키텍처 | KR1020140048009 | 2014-04-22 | KR1020140127761A | 2014-11-04 | 델리와라,쉐레니크; 데커,스티븐제이.; 웨인버그,단엠. |
| 전기 회로는 광 소스로부터 광 신호를 수신하고 광전류 신호를 생성하는 포토다이오드, 광전류 신호를 증폭하고 저잡음 신호를 생성하는 트랜스임피던스 증폭기, 및 저잡음 신호를 양의 진폭, 음의 진폭, 및 양의 진폭과 음의 진폭 사이의 제로 교차점을 갖는 교류(AC) 신호로 변환하는 고역 통과 필터를 포함한다. 전기 회로는 또한 AC 신호의 양의 진폭을 수신하고 양의 적분 값을 적분 기간에 걸쳐 생성하는 양의 적분 증폭기, 및 AC 신호의 음의 진폭을 수신하고 음의 적분 값을 적분 기간에 걸쳐 생성하는 음의 적분 증폭기를 포함한다. 전기 회로는 양의 및 음의 적분 값들을 수신하는 적어도 하나의 아날로그-디지털 변환기를 더 포함한다. | ||||||
| 29 | Burst-mode receiver, and method of bias voltage control for APD of burst-mode receiver | US14768844 | 2013-05-30 | US09525495B2 | 2016-12-20 | Masaki Noda; Susumu Ihara; Satoshi Yoshima; Masamichi Nogami |
| A burst-mode receiver for receiving burst optical signals having different intensities by a reversely connected APD, including: a current detection circuit outputting a photocurrent that is generated by APD and is output from a current mirror circuit (CMC) as a voltage proportional to the photocurrent, the CMC being connected in series between a power supply and APD; a peak detector circuit detecting and holding a peak value of the output voltage of the current detection circuit; a resistor connection switching circuit, which is inserted between the CMC and APD, for connecting a series resistor to APD in series by switching; and a comparator outputting a switching signal for switching the resistor connection switching circuit so that the series resistor is connected to APD in series in a case where a voltage detected by the peak detector circuit is equal to or more than a predetermined threshold. | ||||||
| 30 | OPTICAL AMPLIFIER BASED ON ELECTRO-OPTIC EFFECT FOR ELECTRICAL SIGNALS AND ITS APPLICATION AS SEMICONDUCTOR RADIATION DETECTOR PREAMPLIFIER | US15142561 | 2016-04-29 | US20160329871A1 | 2016-11-10 | Xiaochao Xu |
| An amplifier for amplification of an electrical signal comprises an electro-optic (EO) medium for receiving the electrical signal, wherein applying the electrical signal to the EO medium causes a change to an effective index of refraction, a device configured for measuring a light phase change for measuring the change to the effective index of refraction, and a photodetector configured to convert the change to the effective index of refraction into an amplified electrical current output signal. | ||||||
| 31 | CIRCUIT ARRANGEMENT AND METHOD FOR RECEIVING OPTICAL SIGNALS | US14926862 | 2015-10-29 | US20160050026A1 | 2016-02-18 | Ols HIDRI; Martin GROEPL; Holger HOELTKE |
| In order to further develop a circuit arrangement (CR; CR′) for receiving optical signals (SI) from at least one optical guide (GU), said circuit arrangement (CR; CR′) comprising: at least one light-receiving component (PD) for converting the optical signals (SI) into electrical current signals (IPD), at least one transimpedance amplifier (TA), being provided with the electrical current signals (IPD) from the light-receiving component (PD), at least one automatic gain controller (AG) for controlling the gain or transimpedance (R) of the transimpedance amplifier (TA), at least one integrator (IN) in a feedback path (FP), said integrator (IN) generating a control signal (Vint), at least one voltage-controlled current source (CS), being provided with the control signal (Vint) from the integrator (IN), at least one limiter (LI) acting as a comparator and generating in its output a logic level for positive or negative voltages in its input, and a corresponding method in such a way that a multilevel optical link can be provided, at least one second transimpedance amplifier (TA2) arranged in parallel to the transimpedance amplifier (TA), and at least one automatic offset controller (AO) for setting the voltage (Voffset) for the second transimpedance amplifier (TA2) are proposed. | ||||||
| 32 | BURST-MODE RECEIVER, AND METHOD OF BIAS VOLTAGE CONTROL FOR APD OF BURST-MODE RECEIVER | US14768844 | 2013-05-30 | US20160006517A1 | 2016-01-07 | Masaki NODA; Susumu IHARA; Satoshi YOSHIMA; Masamichi NOGAMI |
| A burst-mode receiver for receiving burst optical signals having different intensities by a reversely connected APD, including: a current detection circuit outputting a photocurrent that is generated by APD and is output from a current mirror circuit (CMC) as a voltage proportional to the photocurrent, the CMC being connected in series between a power supply and APD; a peak detector circuit detecting and holding a peak value of the output voltage of the current detection circuit; a resistor connection switching circuit, which is inserted between the CMC and APD, for connecting a series resistor to APD in series by switching; and a comparator outputting a switching signal for switching the resistor connection switching circuit so that the series resistor is connected to APD in series in a case where a voltage detected by the peak detector circuit is equal to or more than a predetermined threshold. | ||||||
| 33 | TUNABLE NANOWIRE RESONANT CAVITY FOR OPTICAL MODULATION | US13058495 | 2008-08-26 | US20110141546A1 | 2011-06-16 | Sagi Varghese Mathai; Alexandre M. Bratkovski; Wenhua Zhang; Shih-Yuan Wang |
| A resonant cavity with tunable nanowire. The resonant cavity includes a substrate. The substrate is coupleable to an optical resonator structure. The resonant cavity also includes a plurality of nanowires formed on the substrate. The plurality of nanowires is actuated in response to an application of energy. | ||||||
| 34 | Microchannel plate audio amplifier | US09557090 | 2000-04-21 | US06895096B1 | 2005-05-17 | John P. DeLuca |
| A audio amplifier employs microchannel plate for multiplying input electrons to produce output electrons at a rate corresponding to an audio input signal. The MCP may have a segment input source, segmented input and output electrodes or a segmented anode for allowing independent amplification of multiple input channels. | ||||||
| 35 | Hydrophone preamplifier and calibration circuit | US962406 | 1978-11-20 | US4213099A | 1980-07-15 | Craig K. Brown |
| Calibration means, including an optiosolator, for a hydrophone preamplifierhich couples to a remote DC supply source and a remote load through a long, two-wire cable. The output signal of the optoisolator is fed to the amplifier in series with the hydrophone output signal, the input to the optoisolator being an AC calibration signal. In an array of preamplifiers, the same calibration signal is fed to all the preamplifiers by connecting the optoisolators in series with each other and the source of the AC calibration signal. | ||||||
| 36 | Isolated signal conditioner | US865167 | 1977-12-28 | US4189680A | 1980-02-19 | Vernon R. Clark |
| An isolated signal conditioning circuit is provided whereby control or measurement circuitry is isolated from a load, such as a control instrument, through the use of an optically coupled isolation amplifier. The control or measurement signal is conditioned by the signal conditioning circuit so as to provide a signal to a load, such as a control instrument, which is compatible with the input requirements of the load. | ||||||
| 37 | Low noise wide band transducer system | US49896574 | 1974-08-20 | US3927383A | 1975-12-16 | FJARLIE EARL JOHN; DOYLE THOMAS; TEARE MELVIN JOHN |
| A transducer system of wave energy including both acoustical and electromagnetic wave energy in the visible and infrared range comprising a transducer such as a photo sensitive detector having a load resistor coupled to an amplifier which is arranged to operate at substantial unity gain. Positive and negative feedback is utilized to improve the bandwidth without degrading the noise performance. The SNR is substantially constant at the higher frequencies.
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| 38 | Electroluminescent image amplifier | US28309452 | 1952-04-18 | US3210551A | 1965-10-05 | VAUGHN EVERETT W; WEBB EDWARD L; HAYES MARTIN E |
| 39 | Signal translating devices and circuits | US59754756 | 1956-07-12 | US2904697A | 1959-09-15 | HALSTED RICHARD E |
| 40 | Photoelectric semiconductor device | US22856851 | 1951-05-28 | US2640901A | 1953-06-02 | KINMAN THOMAS H |
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