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9018561 High power seed/amplifier laser system with beam shaping intermediate the seed and amplifier  
An apparatus and method of operation for a high power broad band elongated thin beam laser annealing light source, which may comprise a gas discharge seed laser oscillator having a resonance...
8969781 Integrated optical biosensor array including charge injection circuit and quantizer circuit  
An optical biosensor pixel for detecting the amount of light that is generated by the biosensing process and a biosensor array architecture that includes such biosensor pixels. The optical...
8957363 Differential photodiode integrator circuit for absorbance measurements  
Systems and methods for measuring a light intensity. An example photodetector measurement circuit comprises a photodetector that receives a light and generates a photodetector current indicative...
8957365 Light reception circuit and light reception device  
A light reception circuit includes a direct current (DC) level shift circuit that shifts a DC voltage level of a first signal or a second signal and outputs a third signal or a fourth signal, or...
8890051 Integrating circuit and light-detection device  
A photodetecting device 1 includes a photodiode PD and an integrating circuit 10. The integrating circuit 10 includes an amplifier circuit 20, a capacitive element C, a first switch SW1, and a...
8884208 Light receiving circuit  
According to one embodiment, a light receiving circuit having a trans-impedance amplifier and an output circuit is provided. The trans-impedance amplifier includes a photodiode, a feedback...
8879909 Circuits and methods for monitoring power parameters in an optical transceiver  
A circuit, optical transceiver and/or methods for using the same may be useful for determining average power, extinction ratio, and/or modulation amplitude when monitoring an optical transceiver...
8847140 Light receiving circuit having an automatic threshold control circuit for forming and allowing electric current flowing between a second potential line and first and second connection points  
A light receiving circuit includes a photodiode, a transimpedance amp having a feedback resistor, an electric current comparator and an automatic threshold control circuit that includes a current...
8830569 Night vision glasses  
Image-intensifying or night vision glasses are suitable for certain commercial and entertainment applications by virtue of their light weight, small size, and economical production, compared to...
8725005 Dynamic impedance photodetector receiver circuit  
A photodetector receiver circuit for an optical communication system includes an optical photodetector which receives optical signals and converts them into an electrical current. In one...
8692180 Readout circuit for touch sensor  
The present invention relates to a readout circuit for a touch sensor which can increase touch sensing sensitivity regardless of a process variation and a driving voltage of the touch sensor. The...
8598506 Solid-state image pickup apparatus and driving method therefor  
An apparatus according to an embodiment of the present invention includes a conversion unit configured to generate electric charge, a first amplification unit configured to amplify a signal...
8476572 Optical receiver circuit  
An optical receiver circuit is configured as follows: a preamplifier and a reference voltage generating circuit are connected with a first ground potential wiring and a first power supply wiring,...
8461509 Optical sensor device including amplifier circuit and feedback resistor  
In an optical sensor device employing an amorphous silicon photodiode, an external amplifier IC and the like are required due to low current capacity of the sensor element in order to improve the...
8445832 Optical communication device  
An optical communication device which can be operated at high speed is provided. For example, the optical communication device includes: a pre-amplifier circuit PREAMP1 amplifying a current signal...
8238760 Optical receiver with improved noise tolerance  
The present invention provides a system, apparatus and method to improve the signal-to-noise ratio performance in receivers configured to receive differential data signals. According to various...
8160457 PIN/TIA system for use in FTTx applications  
A system is disclosed for an improved ROSA that has increased sensitivity for permitting greater numbers of ONTs to be connected to an optical network per defined transmission line distances. The...
8153953 Light receiving circuit  
A light receiving circuit includes: a transimpedance amplifier circuit which is connected to a light receiving element; a differential amplifier which operates by a predetermined current supplied...
8143564 Photodetection circuit  
This photodetecting circuit 1 is capable of suppressing oscillation of an output, and operates as a zero bias circuit in a case of a small photoelectric current to an extent that a dark current is...
8139957 High sensitivity optical receiver employing a high gain amplifier and an equalizing circuit  
An optical receiver includes a light receiving element for converting an optical signal to an electrical signal having a first bandwidth and an amplifier for amplifying the electrical signal. The...
8121495 Current mirror circuit and optical receiver circuit using the same  
A current mirror circuit and an optical receiver circuit implementing with the current mirror circuit are disclosed. The current mirror circuit provides two MOSFETs and two differential...
8053717 Photoelectric conversion device having a reference voltage generation circuit with a resistor and a second diode element and electronic device having the same  
The photoelectric conversion device includes a photoelectric conversion circuit for outputting photocurrent generated in a photoelectric conversion element as output voltage subjected to...
8055138 Photosensor operating point  
The subject matter disclosed herein relates to determining a photosensor operating point.
8039782 Optical sensor device and electronic apparatus with an amplifier circuit and dual level shift circuit  
In an optical sensor device employing an amorphous silicon photodiode, an external amplifier IC and the like are required due to low current capacity of the sensor element in order to improve the...
7989753 Photodetector having wide dynamic range and low temperature dependence  
A photodetector of a wide dynamic range of incident light amount detection and low temperature dependence is provided. A first signal processing unit 10m,n includes an integrating circuit 11, a...
7968835 Electronic device having LED with variable brightness  
Various embodiments of a light on an electronic device are disclosed. In one embodiment, the light couples to a sensor and has a brightness that varies when ambient light incident on the sensor...
7970291 Optical-receiving apparatus and bias-voltage-control method used for the optical-receiving apparatus  
According to an optical-receiving apparatus including an APD converting input light into an electric signal and a bias-voltage-control method used for the optical-receiving apparatus, a...
7822349 Digital iterative gain control  
In an IR communication network, a method is described to optimize channel performance in the presence of strong and varying IR interference. The method controls of the channel gain based on...
7783205 Learning infrared amplifier for remote control devices  
A learning remote “learns” both a digital code carried by an infrared operational signal as well as a timing characteristic (for example, time period) of a carrier used to modulate the operational...
7755831 Night vision glasses  
Image-intensifying glasses 100 that are suitable for certain commercial and entertainment applications by virtue of their light weight, small size, and economical production, compared to certain...
7728274 Imaging system with negative electron affinity photocathode  
A viewing system configured to combine multiple spectral images of a scene, the system includes a spectral beam separator configured to split an incoming beam of radiation into a first and a...
7723667 Phototransistor with source layer between barrier layer and photosensitive semiconductor layer and a gate layer for controlling the barrier height of the barrier layer  
A photo transistor has an active region spaced from a source by barrier. A drain is laterally spaced from the active region. Light incident on the active region creates electron-hole pairs. Holes...
7714267 Intensity detector circuitry using a cascade of gain elements  
A system is described that may determine an intensity measure. In certain example embodiments, a system may include circuitry for receiving and circuitry for assessing. The circuitry for receiving...
7676152 Optical power monitor for PON telecommunication  
In an optical telecommunication system in which an intensity of an arriving optical signal is different for each packet, detected is an optical intensity for each packet with little error. For...
7657191 Variable bandwidth transimpedance amplifier with one-wire interface  
A bandwidth adjustable transimpedance amplifier. The bandwidth adjustable transimpedance amplifier includes a feedback path with a selectable resistance. The bandwidth adjustable transimpedance...
7620330 Optical receiver device and method  
An optoelectronic device has a bright detector and a dark detector and reduces noise in the output of the bright detector using the output of the dark detector.
7509052 Optical receiver, optical transmitter and optical transceiver  
An optical receiver includes a first light receiving element to convert an optical signal to an electric signal and to output the electric signal from one end. A light receiving element row is...
7470885 Photodetector-amplifier circuit and optical pickup device  
The present invention provides a photodetector-amplifier circuit capable of eliminating an influence of noise due to stray light entering a non-selected photodetector to stably select and switch a...
7460788 Transmitting and receiving device  
A transmitting and receiving device, in which the received signal which is produced by the receiving device has only a small amount of crosstalk. This object is achieved by providing a...
7460792 Receiving circuit and electronic apparatus for optical communication  
In an optical communication-use receiving circuit of the present invention, the pulse width of the received pulse which is a binary signal corresponding to the signal optical pulse is specified by...
7449669 Receiving apparatus  
There may be provided a receiving apparatus including: a light receiving element which receives an optical signal and generates a current signal dependent on the optical signal; a conversion unit...
7449670 Amplifier circuit and optical pickup device  
An amplifier circuit according to the present invention includes: a first operational amplifier having a negative input terminal, a positive input terminal, and an output terminal; a photodiode...
7427733 Gated image intensifier  
A gated optical image intensifier 10 is provided with multiple intensifying channels 20, 22, 24, 26 each supplied with radiation via a respective optical channel of an optical splitter. The...
7423250 Systems, circuits and methods for extending the detection range of an inspection system by avoiding circuit saturation  
Inspection systems, circuits and methods are provided to enhance defect detection by addressing saturation levels of the amplifier and analog-digital circuitry as a limiting factor of the...
7376359 Digital regulated light receive module and regulation method  
The invention discloses a digital adjusting method for an optical receiver module, and the method implements real-time monitor of parameters, on-line adjustment and non-linear compensation. The...
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...
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...
7326905 Photodetector and optical receiver  
An optical receiver is provided with an optical-signal-receiving section and a controlling section. The optical-signal-receiving section incorporates a photodetector. The photodetector has an APD....
7317566 Electrode with transparent series resistance for uniform switching of optical modulation devices  
Switching uniformity of an optical modulation device for controlling the propagation of electromagnetic radiation is improved by use of an electrode comprising an electrically resistive layer that...
7297921 Photodetection circuit and confocal microscope that has it  
A first amplification unit amplifies at a predetermined amplification rate an output signal from a photodetection unit for detecting an optical signal from a specimen and detecting it. An offset...