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7423522 Tire pressure alert system  
A tire pressure alert system suitable for use in a vehicle includes a vehicular tire pressure monitoring system and a telematic system of the vehicle. The telematic system of the vehicle is...
7423253 Method and apparatus for correcting excess signals in an imaging system  
A method and apparatus for excess signal compensation in an imaging system is described. In one particular embodiment, the invention provides for non-linear background, offset (due to time...
7421213 Optical receiver control device with a switchable bandwidth  
A control device with a switchable bandwidth including: an integrating element with a first capacitance, which is charged and discharged by at least one current; at least one second capacitance,...
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...
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...
7381939 Optical cargo detection  
A detector for detecting cargo in a container has a controller block, a transmitter for transmitting light into the field of view, a receiver for receiving reflected light, and a threshold...
7355159 Image scanner and method for detecting a defect in an image to be scanned  
Image data in an image scanner is examined to determine whether lines (light or dark) are present in the image data. By examining whether the lines are present in image data for multiple colors,...
7339152 Delay circuit and test apparatus  
A delay circuit for delaying an input signal with a desired delay and outputting the delayed signal. The delay circuit includes a light emitting element for emitting light according to an input...
7332702 Optical receiver and a method for manufacturing the same  
This invention provides an optical receiver, a temperature dependence of which is compensated, and a method for manufacturing the optical receiver. The optical receiver according to the present...
7329850 Vehicle rearview mirror system having a variable reflectance control  
A vehicle rearview mirror system includes an electro-optic reflective element, an ambient light sensor that is operable to sense ambient light, a glare light sensor that is operable to sense glare...
7327458 Spectral sensitivity composing system  
An output current from each pixel sensor can be extracted at an arbitrary ratio by a current divider. An arithmetic control unit sets the dividing ratio in correspondence to a color matching...
7326947 Current transfer ratio temperature coefficient compensation method and apparatus  
An optocoupler system includes a buffer, isolation, and a detector. The system includes a current transfer ratio (CTR) with a temperature coefficient. The buffer includes a light source that...
7326921 Optical receiver with bias voltage adjusted according to adjustable bypass current  
The present invention is to provide an optical receiver by which the avalanche photodiode (APD) can be protected from the self-breakdown when the signal light with excess power enters therein. The...
7309852 Variable noise control for an optical transducer  
In one embodiment, an optical transducer, such as an infrared transducer, generates an output signal that is representative of optical irradiance. A noise control circuit is coupled in a power...
7277127 Imager flicker compensation systems and methods  
A method of capturing an image of a scene includes providing an imaging device having an array of pixels. Each pixel is configured to provide a pixel output. The method also includes determining a...
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...
7276682 Laser power control with automatic compensation  
A method and apparatus is disclosed for optic signal power control to maintain a desired or optimum optic signal power level. During start-up, a default or target value from memory may be utilized...
7271380 Color input scanner calibration system  
A photosensitive apparatus, such as scanner, includes a plurality of pixels, each pixel having associated therewith a set of photosensors, each photosensor filtered to record a primary color. The...
7265334 Laser power control with automatic compensation  
A method and apparatus is disclosed for optic signal power control to maintain a desired or optimum optic signal power level. During start-up, a target value from memory may be utilized to control...
7256384 Signal-enhancement system for photodetector outputs  
A light scattering photometer signal-enhancement systems includes an adaptive sample and subtract circuit controlled by a computer or microcontroller (MCU). The MCU controls the gain of a...
7256383 Optical sensor circuit, method of processing output signal of the same, and electronic apparatus  
An optical sensor circuit has a first optical sensor that outputs a signal according to the amount of received light on an opened light-receiving surface, a second optical sensor that is provided...
7256378 Output-compensating device for image sensor  
An output compensating device capable of optimally compensating output signals of an image sensor composed of a number of light-sensor circuits, each of which represents a unit pixel and is capable...
7253391 Optical sensor device and electronic apparatus  
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...
7241984 Imaging apparatus using saturation signal and photoelectric conversion signal to form image  
At least one exemplary embodiment is directed to an imaging apparatus which can include a plurality of pixel sections disposed in a two-dimensional pattern. Each pixel section can include a...
7235773 Method and apparatus for image signal compensation of dark current, focal plane temperature, and electronics temperature  
A system and method for calibration and compensation of a visual sensor system. The visual sensor system includes dark pixels adjacent active pixels on a CCD imaging array, which provide dark...
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...
7208717 Method and apparatus for correcting excess signals in an imaging system  
A method and apparatus for excess signal compensation in an imaging system is described. In one particular embodiment, the invention provides for non-linear background, offset (due to time...
7205524 Vehicle rearview mirror system having a variable reflectance control  
A vehicle rearview mirror system includes an electro-optic reflective element, an ambient light sensor that is operable to sense ambient light, a glare light sensor that is operable to sense glare...
7202458 Display and control method thereof  
A display includes a liquid crystal display panel, a back light, an inverter that supplies electric power to the back light and adjust an intensity of illumination of the back light, a selector...
7199351 Solid state image sensing apparatus with output level controller  
A solid state image sensing apparatus having: an image pickup device including; a semiconductor substrate of a first conductivity type, a well of a second conductivity type formed in the...
7196310 Light receiving device for optical communication system  
A light receiving device is disclosed by which a reception characteristic of a light receiving system can be improved. The light receiving device includes a photoelectric conversion element for...
7183540 Apparatus for measuring photo diodes' temperature dependence  
A system for measuring gains of a plurality of photo diodes includes a chamber adapted to host the plurality of photo diodes and a temperature control unit configured to control the temperature...
7183532 Detecting a defect in an image scanner  
Image data in an image scanner is examined to determine whether lines (light or dark) are present in the image data. By examining whether the lines are present in image data for multiple colors,...
7154077 Device and method for measurement of incident power and energy  
Devices and methods for measurement of energy from a defined source having increased accuracy in measuring low energies. The device comprises a housing containing sensors. A first sensor receives...
7112779 Optical apparatus and beam splitter  
An optical apparatus is disclosed, which can take high-quality images by using light transmitted through a beam splitter. The optical apparatus comprises a light-receiving element and a beam...
7105792 Device for compensating for fluctuations in a light source and film scanner  
The invention relates to a device for compensating for fluctuations in the light which is emitted by a light source and propogates along a light path. The device has a first light-sensitive sensor....
7081610 System for compensating for dark current in sensors  
A method is used to perform dark current compensation in a sensor (e.g., a CCD or CMOS sensor). A first and second array of devices (e.g., pixels) in the sensor are used to determine a first dark...
7081609 Light-receiving circuit capable of compensating a temperature dependence of an optical sensitivity of a photodiode  
The present light-receiving circuit provides a function capable of adjusting the temperature dependence and the output of the bias supply circuit independently. The light-receiving circuit includes...
7060970 Temperature compensating device for APD optical receiver  
Disclosed is a temperature-compensating device for an APD optical-receiver system using an APD (Avalanche Photo Diode). The device includes a temperature-compensating circuit which employs a...
7053352 Self testing CMOS imager chip  
A self testing CMOS imager chip includes a controller which outputs a sewer signal, a dump signal, a collect signal, and a read signal, and a pixel array connected to the controller including a...
7049575 System for sensing ambient light having ambient stability probability  
A system and method for sensing ambient light. The system has a first sensor for measuring a first ambient light level and a second sensor for measuring a second ambient light level. A processor in...
7031621 Optical receiving device  
An optical receiving device which is improved in the accuracy of optical input interruption detection as well as in the alarm response and thus is capable of high-quality detection of interruption...
7026594 Method and device for producing radio frequency waves  
The invention relates to a method for producing radio frequency waves, whereby a pulse laser for producing light pulses having a predetermined spectrum of frequency modes and a predetermined...
7009167 Method of adjusting an optronic fuse system  
A method of adjusting the sensitivity of stabilizing an optronic fuse system, which includes a controller, and, as a receiver, an avalanche photodiode (APD). In order to avoid adjustment of an...
6977364 System and method for compensating for dark current in photosensitive devices  
A method is used to perform dark current compensation in a sensor (e.g., a CCD or CMOS sensor). A first and second array of devices (e.g., pixels) in the sensor are used to determine a first dark...
6952005 Optical receiver circuit  
Optical receiver circuit having a first, illuminable reception device for converting an optical signal into an analog electrical signal; a first preamplifier for amplifying the output signal of the...
6943338 Optoelectronic sensor  
The invention relates to an optoelectronic sensor, in particular a reflection light scanner, at least comprising a transmitter for transmitting transmitted light, a receiver for outputting at least...
6930298 Method and structure for minimizing error sources in image and position sensing detectors  
A method and structure for minimizing one or more non-uniformities in image and position sensing detectors are provided. The structure is directed to a focal plane processor for removing...
6919550 Detector for short wave fiber optic communications with compensation to reduce detector jitter  
A detector is provided for short wave fiber optic communication having compensation to reduce detector jitter. The detector includes a photodetector providing a modulated current. A transimpedance...
6917031 Method for quadrature phase angle correction in a coherent receiver of a dual-polarization optical transport system  
A method is provided for correcting a quadrature angle error that exists in the coherent receiver hardware of a dual-polarization optical transport system. The receiver hardware that causes the...
Matches 1 - 50 out of 266 1 2 3 4 5 6 >