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US20120253141 |
METHODS AND SYSTEMS FOR PASSIVE PHOTOPLETHYSMOGRAPH SENSING
Systems and methods are provided for passive photoplethysmograph sensing. A patient monitoring system may provide active sensing, passive sensing, or both. In some cases, a patient monitor may... |
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US20050127276 |
Sensorblock
Housing for a long optical sensor system for the inspection of material taken past the sensor in batches. The sensor is made up of several boards on which the individual photosensitive elements... |
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US20110036969 |
Unit pixels including boosting capacitors, pixel arrays including the unit pixels and photodetecting devices including the pixel arrays
A unit pixel capable of achieving full initialization of a floating diffusion area, a pixel array including the unit pixel, and a photodetecting device including the pixel array. The unit pixel... |
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US20110036970 |
OPTICAL ENCODER DEVICE
An optical encoder device is provided, in which the number of light transmissive slits of a stationary slit plate can be increased as much as possible according to the length of a light receiving... |
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US20110172942 |
SYSTEMS AND METHODS FOR INDICATING AN AMOUNT OF USE OF A SENSOR
Aspects of the present disclosure include systems and methods for indicating an amount of use of a pulse oximetry sensor. According to one embodiment, the system includes an oximeter that monitors... |
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US20120091325 |
DC BIAS EVALUATION IN AN AC COUPLED CIRCUIT VIA TRANSIENT GAIN RESPONSE
A method and system are provided for the monitoring of direct current bias, the system including switching an amplifier of known scale factor from low to high; monitoring a step change in bias... |
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US20050236557 |
Portable photo-controlled electrical power apparatus
The invention is a portable photo-controlled electrical power apparatus that is responsive to daylight. The apparatus consists of: an outdoor grounded electrical plug connected by an electrical... |
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US20060219873 |
Detection system for a flow cytometer
The detection system 10 of the first preferred embodiment is preferably designed to be integrated into a flow cytometer having an interrogation zone 12. The detection system 10 includes a detector... |
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US20120080583 |
AVALANCHE PHOTODIODE OPERATING VOLTAGE SELECTION ALGORITHM
An accurate and rapid method for characterizing the performance of an APD and setting its operating voltage Vop to an optimal value uses an on-board LED or other pulsed light source to measure APD... |
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US20110186715 |
Dynamic Impedance Receiver Circuit For Ultrafast Low-power Photodetector
A photodetector receiver circuit, including: a photodetector for receiving an optical signal and converting the optical signal into a current; and a dynamic impedance circuit connected to the... |
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US20120168612 |
PHOTON DETECTION SYSTEM AND METHOD OF PHOTON DETECTION
According to one embodiment, a photon detection system determines the number of detected photons. The detection system includes an avalanche photodiode and a measuring unit. The measuring unit... |
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US20140373893 |
PREDICTION OF SOLAR OBSCURATION EVENTS BASED ON DETECTION OF SPECTRAL DISTRIBUTION SHIFTS CAUSED BY APPROACHING CLOUDS
A physical effect (optical effect), which may be observed in solar irradiance as shading due to a cloud passing overhead may be approaching a given location (e.g., a location at or proximate a... |
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US20120193552 |
FLUORESCENCE LIFETIME IMAGING
A method of measuring fluorescence from a location, the method comprising applying to the location a first fluorescence excitation signal having a first duty cycle, accumulating as a first result... |
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US20100176276 |
PENINSULA TRANSFER GATE IN A CMOS PIXEL
A pinned photodiode structure with peninsula-shaped transfer gate which decrease the occurrence of a potential barrier between the photodiode and the floating drain, prevents loss of full well... |
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US20110108711 |
SINGLE PHOTON SPECTROMETER
A fiberized single photon sensitive spectrometer based on a 32-channel PMT sensor is highly sensitive with broad detection dynamic range. The spectrometer enables accurate and high speed... |
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US20120028535 |
One Sensor Direction Finder
A low cost method making use of a single sensor only, to detect the relative direction of a light source. Most suitable for toys and low cost gadgets. |
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US20110142371 |
OPTICAL SCANNERS, SUCH AS HAND-HELD OPTICAL SCANNERS
A hand-held optical scanner is described. The hand-held optical scanner has an image sensor, as well as a scan window through which image light is directed toward the image sensor. |
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US20120104229 |
TEMPERATURE SENSOR AND IMAGE SENSOR HAVING THE SAME
A temperature sensor includes a band gap reference (BGR) circuit, a voltage generation unit and a digital CDS circuit. The band gap reference (BGR) circuit generates a reference voltage... |
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US20100320365 |
MULTICOLOR DETECTORS AND APPLICATIONS THEREOF
In one aspect, the present invention provides photodetectors and components thereof having multi-spectral sensing capabilities. In some embodiments, photodetectors of the present invention provide... |
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US20110122098 |
DISPLAY DEVICE
A purpose is to enable detection of an object in a display device including a display panel provided with photosensors when the object touches the display panel and when the object does not touch... |
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US20090152447 |
Photo Detector and Photo Detection Apparatus Provided with Photo Detector
It is an object to provide a photo detector that can be arranged in a matrix pattern (in a three-dimensional pattern) and a photo detection apparatus in which the photo detectors are arranged in a... |
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US20080245954 |
Color sensitive device with temperature compensation and variable gain and display system using the same
A color sensitive device with temperature compensation and variable gain is disclosed. The color sensitive device exposed by RGB light can generate red-light, green-light and blue-light detection... |
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US20090078856 |
Solid-state image capturing device and electronic information device
A solid-state image capturing device includes a multilayer wiring layer to open regions above a plurality of respective light receiving sections for performing photoelectric conversion on incident... |
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US20090184239 |
Boost circuit capable of controlling inrush current and image sensor using the boost circuit
In one embodiment, the boost circuit includes a boost unit configured to perform a charge pumping operation based on a control signal. A controller is configured to control the boost unit such... |
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US20110180693 |
PHOTODIODE FRONT END WITH IMPROVED POWER SUPPLY REJECTION RATIO (PSRR)
An area effective system and method for improving power supply rejection ratio (PSRR) in an optical sensor front end, is provided. Moreover, low pass filter (LPF) that enables the reference... |
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US20110233385 |
Avalanche Photodiode Circuits
An avalanche photodiode circuit, comprising an avalanche photodiode typically connected in parallel to a capacitor, in which there is provided a current shunt circuit which activates to shunt... |
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US20080165482 |
DISPLAY APPARATUS, FAN UNIT AND FAN SPEED CONTROL METHOD THEREOF
A display apparatus, a fan unit and a fan speed control method thereof are provided. The display apparatus includes an image processing unit that performs image processing for an image signal; a... |
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US20110139963 |
IMAGE SENSORS, METHODS, AND PIXELS WITH STORAGE AND TRANSFER GATES
An image sensor includes a pixel array with a plurality of pixels. A pixel includes a photodiode, a first transfer gate, a storage gate, and a second transfer gate. The first transfer gate is... |
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US20070076188 |
Laser level detection system
A laser level detection system which detects a reference plane of laser at an arbitrary position includes a plurality of level detection units and an operation unit which displays a detection... |
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US20120305753 |
CIRCUIT FOR SETTING THE VOLTAGE POTENTIAL AT THE OUTPUT OF A PIN PHOTORECEIVER AND PHOTORECEIVER ASSEMBLY
A circuit sets an output potential at a radio frequency (RF) output of a pin photoreceiver that includes an ohmic terminal resistor connected between a supply voltage and the RF output. The... |
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US20140291489 |
Method And System For A Feedback Transimpedance Amplifier With Sub-40KHZ Low-Frequency Cutoff
A system for a feedback amplifier with sub-40khz low-frequency cutoff is disclosed and may include amplifying electrical signals received via coupling capacitors utilizing an amplifier having... |
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US20050001150 |
Light-receiving circuit that protects breakdown of the avalanche photodiode by the photo current generated thereby
The present invention provides a light-receiving circuit that protects the breakdown of the avalanche photodiode (APD) by the photo current. The light-receiving circuit of the present invention... |
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US20090108179 |
Photodetector Circuit
Two unshielded photosensors to determine the outside-light illuminance and two shielded photosensors are placed alternating both in the longitudinal direction and in the lateral direction. Then,... |
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US20130271626 |
METHOD OF REDUCING COLUMN FIXED PATTERN NOISE
A method of reducing column fixed pattern noise including calibrating a readout circuit, wherein the readout circuit is electrically connected to at least one programmable gain amplifier and an... |
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US20120228479 |
CONTROL CIRCUIT AND OPERATION METHOD FOR PROJECTOR
A control circuit is applied into a projector and an operation method is provided for the projector. The projector includes a photo sensor provided for generating a sensing voltage according to... |
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US20060016964 |
Light quantity detection circuit
A detection circuit which converts an output current into a voltage is added to a photosensor of a thin film transistor. Thereby, a very small current can be converted into a voltage in a desired... |
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US20120268727 |
Optical Distance Measuring Device and Method for Optical Distance Measurement
The present invention describes an optical distance measuring device having a pulsed radiation source that is implemented to transmit, in a temporally contiguous radiation pulse period, a... |
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US20110103415 |
OPTICAL DEVICE FOR WAVELENGTH LOCKING
An optical device comprising a 1×2 optical coupler on a planar substrate and a waveguide on the planar substrate, the waveguide having a first arm and a second arm coupled to the 1×2 optical... |
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US20110114827 |
VOLTAGE GENERATOR CIRCUIT, DIGITAL-TO-ANALOG CONVERTER, RAMP GENERATOR CIRCUIT, ANALOG-TO-DIGITAL CONVERTER, IMAGE SENSOR SYSTEM, AND METHOD FOR GENERATING VOLTAGE
A resistor-ladder voltage generator circuit is provided, which controls so that k switches among consecutive (k+1) switches out of a plurality of switches connected to the resistor ladder circuit... |
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US20090194674 |
CONTROLLER FOR A PHOTOSENSOR
The subject matter disclosed herein relates to a method and/or system for driving a photosensor. |
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US20060145060 |
Photo-sensing device
A photo-sensing device includes a light emitting part, a light receiving part, and a housing. The light emitting part emitting a beam of light to the light receiving part, and the housing contains... |
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US20100032546 |
OBSERVATION APPARATUS AND OBSERVATION METHOD
An observation apparatus includes a light radiating unit that radiates a plurality of element lights, each of which has a limited wavelength band, to an observation target; a light detecting unit... |
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US20080128595 |
Monitoring light pulses
To monitor light pulses from a light source, such as a laser, sense signals are provided to a photosensing component or array, causing photosensing during a series of one or more sense periods for... |
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US20120256080 |
SELECTIVELY TRANSLUCENT WINDOW
A system and method for controlling the intensity of light into a cabin space is provided. The system includes a controller in communication with a window. The window is configured to have... |
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US20110303828 |
SELECTIVELY TRANSLUCENT WINDOW
A system and method for controlling the intensity of light into a cabin space is provided. The system includes a controller in communication with a window. The window is configured to have... |
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US20090050789 |
OPTOELECTRONIC PACKAGE, CAMERA INCLUDING THE SAME AND RELATED METHODS
A camera includes a first substrate having top and bottom surfaces, a second substrate having top and bottom surfaces, a spacer substrate between a substantially planar portion of the top surface... |
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US20140321862 |
PHOTON DETECTOR AND A PHOTON DETECTION METHOD
A photon detection system is provided comprising a photon detector, configured to detect photons during intervals when in a receiving state and to output a signal when a photon is received, a... |
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US20050116144 |
Light detector with enhanced quantum efficiency
A semiconductor-based, especially a silicon-based, light detector, comprising a detector body (1.1) having a detector surface (1.2) and a covering layer (2) which comprises at least one first... |
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US20090224142 |
REVERSE BIAS PROCESSING APPARATUS AND REVERSE BIAS PROCESSING METHOD FOR PHOTOELECTRIC CONVERSION DEVICES
When reverse bias processing is performed, on a plurality of photoelectric conversion devices connected in series, different potentials are applied to electrodes of three or more photoelectric... |
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US20050023440 |
Integrated optical detector and diffractive optical element
An integrated optical detector and diffractive optical element includes a sensing element and a diffractive optical element. The sensing element and diffractive optical element are placed directly... |