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9006638 Dual-mode capacitive transimpedance amplifier, and read-out device incorporating the same  
A capacitive transimpedance amplifier for a detector unit capable of generating first and second detection currents comprises: a read-out circuit including an integration capacitor coupled between...
9006640 Image pickup apparatus capable of switching between modes to reduce power consumption  
An embodiment of an image pickup apparatus according to the present invention includes, on a semiconductor substrate, an imaging area having a plurality of pixel columns and a plurality of column...
8993952 Transimpedance amplifier, semiconductor device, and optical module to include an adding circuit for adding first and second current variation  
An optical module including a transimpedance amplifier capable of realizing a high-speed and high-quality receiving operation is provided. A transimpedance amplifier includes: a pre-amplifier...
8987650 Front end module for optical receiver  
A front end module for an optical receiver is disclosed. The module includes a PD, a trans-impedance amplifier (TIA), an insulating carrier for mounting the PD, and a conductive base for mounting...
8987646 Pixel and method  
In accordance with an embodiment, a pixel includes a first stage coupled to a second stage. The second stage includes a sampling capacitor and a subtraction capacitor.
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...
8957361 Switching circuit, charge sense amplifier including switching circuit, and photon counting device including switching circuit  
A switching circuit, a charge sense amplifier, and a photon counting device are provided. The switching circuit configured to close and open a connection between a first terminal and a second...
8946616 Analog-to-digital converter using variable counting interval and image sensor including same  
An analog-to-digital converter (ADC) within an image sensor includes a comparator comparing a ramp signal with an image signal, and a counter generating a count result in response to the...
8941047 Molecular transistor driving of nanoscale actuators from differential amplifier circuits compatible with carbon nanotube sensors and transducers  
A carbon nanotube electronic circuit utilizing a differential amplifier is implemented on a single carbon nanotube. Field effect transistors are formed from a first group of electrical conductors...
8921755 Detection circuit with correlated double sampling with improved anti-blooming circuit  
The detection circuit with correlated double sampling comprises two transimpedance amplifiers connected by means of a sampling capacitor. A photodiode is connected to the input of the first...
8921757 Anti-blooming circuit for integrating photodiode pre-amplifiers  
An input clamping circuit of a photo detector preamplifier is activated when an input transistor is turned off by an input overload, and the drain voltage of the input transistor is pulled toward...
8907729 Trans-impedance amplifier for high speed optical-electrical interfaces  
The differential trans-impedance amplifier uses trans-resistance(s) connected between the input nodes of a first differential amplifier, to implement a trans-impedance differential amplifier in a...
8901475 Avalanche photodiode biasing system including a current mirror, voltage-to-current converter circuit, and a feedback path sensing an avalanche photodiode voltage  
A system has a current mirror that has an input node and an output node and an avalanche photodiode (APD) coupled to the output node of the current mirror. The system also has a nonlinear...
8901474 Enhanced received signal power indicators for optical receivers and transceivers, and methods of making and using the same  
An optical transceiver and/or optical network, and methods of monitoring optical transceivers, may be useful for increasing the dynamic range and/or determining the received signal strength and/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...
8884205 Low consumption matrix sensor  
An image matrix sensor having a plurality of individual detection structures associated with respective pixels, each individual detection structure including a photodiode having at least one solar...
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...
8872095 Sensor pixels, arrays and array systems and methods therefor  
One sensor pixel includes amplifying transistor, coupled between first bias line and data line; switch transistor, operated by control line and coupled between data line and gate of amplifying...
8872088 Noise-matching dynamic bias for column ramp comparators in a CMOS image sensor  
Embodiments of an image sensor including a pixel array with a plurality of pixels arranged into rows and columns. Control circuitry coupled to the pixels in each row, and an analog-to-digital...
8859944 Coordinated in-pixel light detection method and apparatus  
A method and apparatus of coordinated in-pixel light detection is provided. In one aspect, the method includes implementing an N-number of avalanche photodiodes inside a pixel circuit of a light...
8859946 Light detecting device including a peaking circuit  
An optical detecting device includes a light-detecting element for outputting an electrical signal, a pre-amplifier for amplifying the electrical signal, a signal line connected to an output of...
8824901 Multi-mode optoelectronic oscillator  
A multi-mode optoelectronic oscillator (MM-OEO) includes an OEO cavity having an input for receiving an RF signal and an RF output. The OEO cavity includes a) a first laser having a first laser...
8816268 Input unit cell circuitry for transducer readout  
Techniques are disclosed that provide time delay integration (TDI) in detection signal processing (such as a signal generated by an IR sensor). The techniques can be implemented, for example, to...
8816772 Differential amplifier with function of variable gain and optical receiver implemented with the same  
A differential circuit with a function of a variable gain without shifting the output cross point is disclosed. The differential circuit includes an amplifying stage and a control stage. The...
8803064 Signal processing device, including charge injection circuit, and photodetection device  
In a signal processing device of an embodiment, an integration circuit accumulates a charge from a photodiode in an integrating capacitor element, and outputs a voltage value according to the...
8772697 Photodetector device  
Provided is a photodetector device for detecting light intensity based on a detection signal of a difference circuit, the photodetector device including: a first light receiving element which...
8772699 Display device having a photosensor  
The present invention relates to a display device including a photosensor in a pixel region. The photosensor of the present invention includes a diode (D1) that receives incident light, reset...
8759737 Solid state imaging device with a multi-ramp-wave generating unit  
According to one embodiment, a solid-state imaging device includes a pixel outputting a photoelectrically converted signal, an ADC circuit disposed in an edge portion of a pixel area to convert an...
8754358 CMOS sensor array  
A CMOS sensor includes a pixel configured to output a voltage based on incident light received by the pixel. A first circuit is coupled to the pixel and is configured to determine a reset voltage...
8742314 Light amount detecting apparatus, and light amount information processing apparatus  
A light amount detecting apparatus includes: a photoelectric converting element converting quantity of light inputted to current; a current/voltage converting device having a positive input...
8729452 Variable gain amplifier compensating frequency response thereof  
A variable gain amplifier canceling the dependence of the frequency bandwidth thereof on the gain is disclosed. The variable gain amplifier includes a differential stage with a cascade transistor...
8723097 Illuminance sensor having light-level-independent consumption current  
Provided is an illuminance sensor in which a consumption current is independent of an illuminance level of incident light. Amplifiers (21 to 24) and a subtraction circuit (25) are driven by a...
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...
8704147 Photoelectric conversion device  
A photoelectric conversion device has a first photoelectric converter which converts light into a current, a second photoelectric converter which converts light into a current, a first bipolar...
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...
8693879 Discrete bootstrapping in an optical receiver to prevent signal feedback  
An optical receiver assembly that is configured to avoid the introduction of feedback in an electrical signal converted by the assembly is disclosed. In one embodiment, an optical receiver...
8692179 Optical communication system using grounded coplanar waveguide  
The invention discloses an optical communication system using grounded coplanar waveguide, comprising a current buffer and a transimpedance amplifier (TIA). Transmission lines of the optical...
8675107 Photoelectric conversion apparatus, control method thereof, imaging apparatus, and imaging system  
Each pixel has a photoelectric conversion unit configured to convert light into electrical charges and to store the electrical charges, an amplifying unit configured to amplify a signal based on...
8658958 Light sensing circuit having programmable current source and method thereof  
A light detecting circuit and a light detecting method thereof are provided. The light detecting circuit includes a first resistor, a light sensor, a current source, and a first current mirror....
8653435 Time-delay integration imaging method and apparatus using a high-speed in-pixel analog photon counter  
A high speed analog photon counter and method is provided. In one aspect, the method includes accumulating an electric charge in a capacitor of a circuit electrically coupled to a current source....
8642942 Configurable photo detector circuit  
A configurable photo detector circuit comprises a photo detector array including a plurality of photo detectors coupled to a plurality of amplifiers. A method for programming a detection pattern...
8637800 Image sensor with hybrid heterostructure  
An image sensor architecture provides an SNR in excess of 100 dB, without requiring the use of a mechanical shutter. The circuit components for an active pixel sensor array are separated and...
8610046 Image readout circuit with capacitor that is shared between sample and hold and buffer  
A switched capacitor sample and hold buffer that can be used, for example, in a CMOS image sensor. The switched capacitor sample and hold circuit has large output swings, low noise and reduced...
8605272 Tool, tool set and method of setting the pitch of the blades of a model propeller  
A tool for tuning the pitch of blades on a model propeller with pivoting blades, the tool comprising a mount for the model propeller and a calculation module. The mount allows the propeller to be...
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...
8587364 Receiving circuit having a light receiving element which receives a light signal  
According to one embodiment, a receiving circuit is provided. The receiving circuit has a first light receiving element, a signal voltage generator, a second light receiving element, a delay...
8581172 High-speed analog photon counter and method  
A high speed analog photon counter and method is provided. In one aspect, the method includes delivering an electric charge to a circuit of the high speed analog photon counter through a current...
8581171 Cyclic A/D converter, image sensor device, and method for generating digital signal from analog signal  
A cyclic A/D converter which can reduce the number of reference voltages for D/A conversion is provided. The cyclic A/D converter (11) comprises a gain stage (15), an A/D converter circuit (17), a...
8569674 Multiplexed photocurrent monitoring circuit comprising current mirror circuits  
A low cost photocurrent monitoring circuit is provided. A photocurrent monitoring circuit, which performs monitoring by converting photocurrents output from a plurality of photodiodes (PD1 to PDn)...