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| Number | Title | Issue Date |
| 8183512 | Optically-triggered power system and devices A power device is provided in an optically-triggered power system having a controller for generating electrical control signals and a converter for converting the electrical control signals to optical control signals. The power device includes a pair of terminals an... | 05/22/2012 |
| 8124923 | Wireless remote detector systems and methods A system for an embodiment includes a sensor device having at least one sensor adapted to monitor at least one parameter associated with a circuit and selectively provide measurement information on the at least one parameter. The at least one sensor may include an e... | 02/28/2012 |
| 8115160 | Protection circuit and photoelectric conversion device A protection circuit and a photoelectric conversion device are provided, each of which includes a first wiring, a second wiring, a first switch, a second switch, a capacitor, and a comparing circuit configured to generate a signal corresponding to a potential of the... | 02/14/2012 |
| 8022350 | Imaging pixel comprising a comparator to compare integrated photocurrent to a reference value and digital output circuitry An improved CMOS pixel with a combination of analog and digital readouts to provide a large pixel dynamic range without compromising low-light performance using a comparator to test the value of an accumulated charge at a series of exponentially increasing exposure ... | 09/20/2011 |
| 7956314 | Microwave switching element In some embodiments, a microwave switch element may include one or more of the following features: (a) an electrically isolated input capable of receiving an input, (b) an amplifier electrically coupled to the input and to an active device, (c) a power source magnet... | 06/07/2011 |
| 7884312 | Sensor device usable as a switch A sensor device includes a base wall, a plurality of sidewalls cooperating with the base wall to define a receiving space that has an open end, an emitter disposed in the receiving space and having an emitter element to emit a light signal, a receiver disposed in th... | 02/08/2011 |
| 7741591 | Optically powered drive circuit and method for controlling a semiconductor switch An optically powered drive circuit and a method for controlling a first semiconductor switch are provided. The optically powered drive circuit includes a photovoltaic cell configured to receive a first light signal from a fiber optic cable and to output a first volt... | 06/22/2010 |
| 7728275 | Wireless remote detector systems and methods A device for associating a circuit breaker with a circuit may have one or more sensors for remotely sensing that a circuit is active. When a sensor senses that a circuit is active, a transmitter may transmit a signal to a receiver that alerts a user. In this manner,... | 06/01/2010 |
| 7586078 | Method for forming a photoelectric switch A method for forming a photoelectric switch is disclosed. The method includes providing a granular mold having a first slot and a second slot; filling the first and the second slots with a light-filtering molding material; respectively positioning a transmitter comp... | 09/08/2009 |
| 7479624 | Laser light actuation system A laser light actuation system for remotely and selectively actuating a function of a known apparatus. The system includes a laser module adapted to produce a known laser light signal, which is preferably sparsely modulated, the signal being suitable for transmissio... | 01/20/2009 |
| 7459666 | Battery compartment adapter cap for control of electric power and device equipped therewith A signalling device comprising an emission module operative on the application of battery power from a battery pack for the emission of a signal from at least one electromagnetic radiation emitting element, a battery compartment and a cap for retaining said battery ... | 12/02/2008 |
| 7449668 | Optically powered drive circuit and method for controlling a semiconductor switch An optically powered drive circuit and a method for controlling a first semiconductor switch are provided. The optically powered drive circuit includes a photovoltaic cell configured to receive a first light signal from a fiber optic cable and to output a first volt... | 11/11/2008 |
| 7417217 | Regressive reflection type photoelectric switch A concave curved surface 95 is formed on a light inputting surface 93 of a light emitting lens 43, and a convex curved surface 96 is formed on a light emitting surface 94. Only laser light close to an optic axis A is inputted to th... | 08/26/2008 |
| 7397022 | Sensor arrangement to prevent reference light incident on side of photodiode A sensor arrangement, in particular as part of a reflection light barrier, includes a carrier as well as a photodiode, a first light emitting diode for emitting a measuring light beam, and a second light emitting diode for emitting a reference light beam, in particu... | 07/08/2008 |
| 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 digital optical receiver module includes elements as follow: a voltage o... | 05/20/2008 |
| 7365302 | Output impedance varying circuit A photo detector IC (PDIC) is connected with a flexible printed circuit board (FPC). A signal converted into a voltage through light-to-voltage conversion in the PDIC is connected with the drain of a field effect transistor (FET), while the source of the FET is conn... | 04/29/2008 |
| 7361472 | Methods for providing extended dynamic range in analyte assays Methods for enhancing the dynamic range for specific detection of one or more analytes in assays using scattered-light detectable particle labels. The methods involve utilizing variations in detection technique and/or signal processing to extend the dynamic range to... | 04/22/2008 |
| 7359317 | Redundancy arrangement for telecommunications switch A system and method are disclosed for providing redundancy for telecommunication switches. A primary telecom switch has an active processing board and a passive I/O board for communicating with external sources, such as a control network and bearer traffic network. ... | 04/15/2008 |
| 7335871 | Low power switching for antenna reconfiguration Methods and systems for low power switching are provided. In one embodiment, an optical switching system is provided. The system comprises at least one optically controlled switch adapted to maintain one of an open state and a closed state based on an associated lig... | 02/26/2008 |
| 7329848 | Photo sensor, display panel having the same and display device having the display panel A photo sensor includes a first substrate, a switching element and a second substrate. The switching element is disposed at the first substrate and defined by a control electrode, and first and second current electrodes. The switching element includes a channel disp... | 02/12/2008 |
| 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 function. The current components are added together by a summing amplifier ... | 02/05/2008 |
| 7313255 | System and method for optically detecting a click event An imaging system captures a sequence of images representing finger lift-up and finger put-down motions over a sensing area and produces an image signal for use in detecting a click event. At least one light source illuminates a finger interface upon which a user pl... | 12/25/2007 |
| 7295455 | Semiconductor integrated circuit with photo-detecting elements for reverse-engineering protection A semiconductor integrated circuit capable of protection from card hacking, by which erroneous actions are actively induced by irradiation with light and protected secret information is illegitimately acquired, is to be provided. Photodetectors, configured by a stan... | 11/13/2007 |
| 7291825 | Capacitance type physical quantity sensor The capacitance type physical quantity sensor has a sensing part including a capacitor element generating a capacitance signal representing a magnitude of a physical quantity to be sensed, and a sensor circuit including a charge amplifier converting the capacitance ... | 11/06/2007 |
| 7280714 | Device and method for optoelectronically identifying the displacement and/or position of an object The invention relates to a device and a method for optoelectronically identifying the displacement and/or position of an object. According to the method, a transmitter element emits light, which is received by at least one receiver element and the light emitted from... | 10/09/2007 |
| 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 that the opto-electrical converter establishes a DC operating point. In ... | 10/02/2007 |
| 7268607 | Integrating capacitance circuitry for an integrating amplifier and related method An integrating capacitor circuit for an integrating amplifier and related methods are disclosed that allow for efficient detection of currents or charges, particularly those produced by pixel cells in a detector image array. By placing a capacitor-connected field-ef... | 09/11/2007 |
| 7256409 | Optical sensor circuit combining functions of open and close type optical sensor circuits An optical sensor circuit comprises an optical sensor adapted to sense a position of a component in a semiconductor manufacturing apparatus according to the presence or absence of a flag and output a signal indicative of the position. A position sensing driver recei... | 08/14/2007 |
| 7250596 | Circuit with an opto-electronic display unit A circuit provided with an optoelectronic display unit. For discrete display of the settings of a regulating/control unit, said circuit comprises at least one detection element for detecting the actuation of an object in order to modify the settings of the regulatin... | 07/31/2007 |
| 7245188 | Light receiving amplification circuit A light receiving amplification circuit according to the present invention includes: a light receiving element; an amplification circuit which amplifies a photoelectric current generated by the light receiving element and outputs from an amplification stage for exte... | 07/17/2007 |
| 7239773 | Optical-switch testing apparatus, optical-signal switching apparatus, optical-switch testing method, and control method for optical-signal switching A light source supplies optical signal to an optical switch and a detector detects light receiving level. A control unit changes a deflection control amount for changing an angle of a tilt mirror, and outputs the deflection control amount to a driving unit. When an ... | 07/03/2007 |
| 7230227 | Lenslet/detector array assembly for high data rate optical communications An assembly is provided that may be used in high data rate optical communications, such as free-space communication systems. The assembly may include a main optical receiver element and a lenslet array or other optical element disposed near the focal plane that coll... | 06/12/2007 |
| 7217915 | Method and apparatus for detecting the position of light which is incident to a semiconductor die One embodiment of the present invention provides a system for detecting light which is incident to a first semiconductor die. During operation, the system receives light at a photo-detector on the first semiconductor die, wherein associated circuitry converts the re... | 05/15/2007 |
| 7214922 | Semiconductor photosensor device and information apparatus with sensitivity region for wide dynamic range A semiconductor photosensor device includes a plurality of photodiode sections, a switch, and an output section is provided. The plurality of photodiode sections have different illuminance-output characteristics. The switch selects any one of the plurality of photod... | 05/08/2007 |
| 7202463 | Higher dynamic range image sensor with signal integration Briefly, in accordance with one embodiment of the invention, a higher dynamic range image sensor may be implemented by comparing a voltage across the sensor to a threshold voltage during image capture. At the threshold voltage, a count may be registered and the imag... | 04/10/2007 |
| 7189962 | Semiconductor relay apparatus and wiring board fabrication method Three chips, i.e., an LED, photovoltaic IC, and MOS-FET, are mounted on a silicon substrate having two projections arranged substantially parallel to each other. Each projection has a side surface formed by an inclined surface including a curve having an inflection ... | 03/13/2007 |
| 7175086 | Authentication system, data device, and methods for using the same An authentication system may comprise: a first light source, a second light source, and at least three optically filtered light sensing devices. The first light source can have a first light source spectral distribution and can be capable of providing sufficient exc... | 02/13/2007 |
| 7155133 | Avalanche photodiode controller circuit for fiber optics transceiver A controller for controlling the reverse-bias voltage of an avalanche photodiode in a transceiver or receiver. The controller includes memory for storing information related to the avalanche photodiode, and analog to digital conversion circuitry for receiving an ana... | 12/26/2006 |
| 7106067 | Calibration plug for invasive and non-invasive electrodeless conductivity sensors and methods of using the same calibration plug A calibration plug provides resistance simulation for calibrating toroidal conductivity sensors. This calibration plug includes a resistive element of predetermined electrical resistance coupled in series between electrical leads which may be engaged with a circuit ... | 09/12/2006 |
| 7102296 | Screw-in transformer An apparatus for providing convenient transforming of electrical energy from a first voltage level to a second voltage level, includes a housing having an end wherein the end includes a conductive threading and a contact for making an electrical connection with a li... | 09/05/2006 |
