Class 250/214LS - Switching type

Subclass of Class 250 - Radiant energy
No. of patents: 190
Last issue date: 05/29/2012

Number	Title	Issue Date
8188418	Switchable hybrid receiver for coherent and direct optical detection Embodiments of the present invention provide a switchable dual-mode detection system that can be electronically or optically switched between direct and coherent detection. The dual-mode detection system comprises a photo detector and one or more switching elements ...	05/29/2012
7579578	Advanced multipurpose pseudospark switch having a hollow cathode with a planar spiral electrode and an aperture The present invention provides a pseudospark switch that overcomes the aforementioned limitations of existing pseudospark switches and proved e-beams for applications such as FELs, pulsed lasers, X-ray machines, and radar. The improvement in e-beam quality is obtain...	08/25/2009
7566859	Infrared ray switching device An IR switching device, electrically connected to an apparatus, is provided. The IR switching device comprises an IR transmitter, an IR receiver, a processor, a controller. The IR transmitter is configured to emit an IR signal. The IR receiver is configured to recei...	07/28/2009
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 photodetector. The photodetector-amplifier circuit of the present inv...	12/30/2008
7411172	Method and apparatus for resetting a high speed latch circuit A latch circuit includes first and second resonant tunneling diodes coupled in series, and a reset portion having a photodiode portion responsive to varying photonic energy for switching between first and second states which are different. When the photodiode portio...	08/12/2008
7408141	Light-receiving amplifier circuit and optical pick-up device using the same The present invention provides a light-receiving amplifier circuit which includes a clipping circuit, can prevent an oscillation at the time of clipping operation, and can freely set clipping voltage. The light-receiving circuit of the present invention includes a p...	08/05/2008
7406018	Signal generating circuit and optical pickup device provided therewith A signal generating circuit of the invention includes a current polarity switch circuit that receives an output current of a light-sensitive element and outputs a current of which the direction the polarity switch circuit keeps constant regardless of the direction o...	07/29/2008
7391408	Adjustable apparatus in display devices for automatic adjusting brightness An adjustable brightness apparatus includes a light detection unit and a modulation and can automatically adjust the backlight current of a display device based on variable ambient light outside the display device so as to reduce the power consumption. Users can the...	06/24/2008
7388186	Optically controlled MEMS devices An optically controlled mechanical device actuated by electrostatic forces. The device includes electrostatic plates disposed on opposing portions of the device to accumulate charge; conductors to conduct charge to the electrostatic plates from a bias supply; and a ...	06/17/2008
7368700	Optical switch apparatus and optical switching system In an optical switch apparatus which continuously carries out the route switching on frame signal light inputted from various routes while eliminating differences in output power value, a first delaying unit, which is interposed between a first branching unit and an...	05/06/2008
7345270	Photocontrol with radio-controlled timer and a decoder A photocontrol controls the activation of lighting based on ambient light and the time of day using a radio-controlled timer. Radio signals from a particular source of correct time, such as the National Institute for Science and Technology's WWVB radio broadcast, ca...	03/18/2008
7336855	Integration of a waveguide self-electrooptic effect device and a vertically coupled interconnect waveguide A self-electrooptic effect device (“SEED”) is integrated with waveguide interconnects through the use of vertical directional couplers. Light initially propagating in the interconnect waveguide is vertically coupled to the active waveguide layer of the SEED and,...	02/26/2008
7319221	Light-receiving device, optical pickup, and optical disc apparatus A signal-detecting light-receiving device formed as an integrated circuit, which receives a light beam reflected from an optical recording medium, and which outputs a signal obtained from the received reflected light beam, through a current-output-type current ampli...	01/15/2008
7301136	Method for operating a photoelectric sensor arrangement with inverting and shifting a received signal and corresponding sensor A method for operating a photoelectric sensor arrangement having a pulsed light emitting first module, a light receiving and converting second module and a level judging and/or processing third module. The method includes: s...	11/27/2007
7242427	X-Y address type solid-state image pickup device with an image averaging circuit disposed in the noise cancel circuit The invention relates to an X-Y address type solid-state image pickup device manufactured by a CMOS process, and has an object to provide an X-Y address type solid-state image pickup device in which a chip area is not increased, manufacturing costs are suppressed, a...	07/10/2007
7227280	Isolated control apparatus incorporating light controlled power semiconductors A system for direct optical control of electronic power semiconductors includes an optical triggering circuit at a first location, wherein said optical triggering circuit generates an optical trigger signal, a power circuit located at a second location remote from t...	06/05/2007
7208770	Oxygen-doped Al-containing current blocking layers in active semiconductor devices in photonic integrated circuits (PICs) In photonic integrated circuits (PICs) having at least one active semiconductor device, such as, a buried heterostructure semiconductor laser, LED, modulator, photodiode, heterojunction bipolar transistor, field effect transistor or other active device, a plurality ...	04/24/2007
7173295	Multi-line triggering and interdigitated electrode structure for photoconductive semiconductor switches An improved photoconductive semiconductor switch comprises multiple-line optical triggering of multiple, high-current parallel filaments between the switch electrodes. The switch can also have a multi-gap, interdigitated electrode for the generation of additional pa...	02/06/2007
7167655	Measurement system for wide dynamic range optical power meter A measurement system for wide dynamic range operation in optical power measurement applications is disclosed. The system provides amplification over a wide dynamic range without glitch, signal loss or transient effect during range switch. This is achieved by combini...	01/23/2007
7145121	Monolithic silicon integrated circuit for detecting azimuth and elevation of incident radiation and method for using same A device for detecting radiation direction is an integrated circuit that includes a first and second phototransistor positioned anti-parallel with respect to each other and a reference phototransistor. The device does not require impinging radiation to be mechanical...	12/05/2006
7142348	Conformal retro-modulator optical devices A conformal retro-modulator optical apparatus. The apparatus includes an array of multiple quantum well devices disposed in a thin array. A plastic support element is bonded to the thin array, the plastic support element having a thickness greater that of the thin a...	11/28/2006
7141826	Multi-wavelength light receiving element and method of fabricating same Disclosed is a multi-wavelength light receiving element. The multi-wavelength light receiving element includes a first type substrate. A first intrinsic layer is positioned on the first type substrate. A heavily-doped second-type buried layer is positioned on the fi...	11/28/2006
7129463	Photocurrent sensing circuit having stabilized feedback loop A photocurrent sensing circuit having a stabilized feedback loop comprises a photocurrent generator including a photodiode generating the photocurrent in proportion to an amount of incident light and applying the photocurrent to an output node, a switching unit appl...	10/31/2006
7129457	Redundant imaging systems Imaging arrays typically include thousands or millions of photodetectors that convert sensed light into corresponding electric signals, which are ultimately converted into digital image signals for recording or viewing. One problem with conventional imaging arrays c...	10/31/2006
7098438	Method and apparatus for resetting a high speed latch circuit A latch circuit includes first and second resonant tunneling diodes coupled in series, and a reset portion having a photodiode portion responsive to varying photonic energy for switching between first and second states which are different. When the photodiode portio...	08/29/2006
7092021	Frame shuttering scheme for increased frame rate A frame shutter apparatus comprising a controller for controlling multiple groups of pixels and for reading out values corresponding to the charge collected by different groups of pixels at different times. A method of reading out multiple groups of pixels is provid...	08/15/2006
7091467	Image sensor An image sensor has light receiving elements, switching elements for reading out output signals from the light receiving elements, a scanning circuit array for driving the switching elements, and a common signal line connected to the switching elements for transmitt...	08/15/2006
7079776	Optical signal transmission board and apparatus An individual optical signal transmission substrate includes an optical signal transmission area where at least one of a light emitting element for sending an optical signal to other optical signal transmission substrates or a light receiving element for receiving a...	07/18/2006
7043300	High-energy electrolytic capacitors for implantable defibrillators Implantable defibrillators are implanted into the chests of patients prone to suffering ventricular fibrillation, a potentially fatal heart condition. A critical component in these devices is an aluminum electrolytic capacitors, which stores and delivers one or more...	05/09/2006
7015454	Relaxed tolerance optical interconnect system capable of providing an array of sub-images An optical interconnect system having a GRIN rod lens, the GRIN rod lens having a first end and a second end, and further having a preselected length, a preselected width and a preselected index of refraction. Means are fixedly secured to the first end of the GRIN r...	03/21/2006
7006936	Pulse width measuring device with automatic range setting function A pulse width measuring device is disclosed that calculates the pulse width of a signal to be measured, based on a count value and a count clock signal. In the pulse width measuring device, the counter circuit has a plurality of bits that are divided into an exponen...	02/28/2006
6993315	Super-regenerative microwave detector A resonant tunneling diode or diode array oscillator (10) including a resonant diode (11) is coupled to a millimeter-wave source (14) and a quench generator (16) for periodically quenching the oscillations so that the average oscillation ...	01/31/2006
6984815	Electronic pulse detection apparatus and electronic pulse detection chip An electronic pulse detection device includes: an MCP in which a plurality of capillaries configured to increase the number of electrons are arranged in matrix; and an electronic pulse reading chip 30 disposed on an output side of the MCP. The electronic puls...	01/10/2006
6977950	Power distribution network for optoelectronic circuits Method and arrangement are disclosed for a power distribution network for distributing power to VCSELS on an optoelectronic chip that maintains a constant bias voltage to the VCSELs. More particularly, the power distribution network includes an H-tree network for di...	12/20/2005
6954302	Conformal retro-modulator optical devices A conformal retro-modulator optical apparatus. The apparatus includes an array of multiple quantum well devices disposed in a thin array. A plastic support element is bonded to the thin array, the plastic support element having a thickness greater that of the thin a...	10/11/2005
6895190	Switchable bandwidth lowpass filter A novel transceiver is provided which allow for either a transmitter or receiver to be dynamically switched between two different frequency bands by use of a novel switchable lowpass filter. ...	05/17/2005
6815658	Testing circuit for charge detection circuit, LSI, image sensor, and testing method for the charge detection circuit A testing circuit 1, provided between an input terminal IN of an LSI 2 and the CSA 20, includes a switch NSW (a third switch), a capacitor CT which is connected in parallel to the switch NSW, and switches TC1 (a first switch) and TC2	11/09/2004
6815655	Method and apparatus for sequencing power in a photodetector circuit A circuit for use with a photodetector includes multiple switches, a comparator, and a capacitor. The photodetector receives a first voltage and a second voltage at first and second nodes, respectively. The first voltage is higher than the second voltage. The capaci...	11/09/2004
6809308	Photodetector and photodetecting system capable of detecting information about the two-dimensional intensity distribution and wavelength distribution of incident light A photodetector which has the function of measuring the intensity distribution of light with a simple and inexpensive construction and which has a selectivity for a measured wavelength band. The photodetector includes a transparent semiconductor electrode part and c...	10/26/2004
6803559	Optically controlled MEM switches An optically controlled micro-electromechanical (MEM) switch is described which desirably utilizes photoconductive properties of a semiconductive substrate upon which MEM switches are fabricated. In one embodiment the bias voltage provided for actuation of the switc...	10/12/2004

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Class 250/214LS - Switching type