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| Number | Title | Issue Date |
| 8179939 | Light emitting and lasing semiconductor devices and methods A two terminal semiconductor device for producing light emission in response to electrical signals, includes: a terminal-less semiconductor base region disposed between a semiconductor emitter region and a semiconductor collector region having a tunnel junction adja... | 05/15/2012 |
| 8179937 | High speed light emitting semiconductor methods and devices A method for producing a high frequency optical signal component representative of a high frequency electrical input signal component, includes the following steps: providing a semiconductor transistor structure that includes a base region of a first semiconductor t... | 05/15/2012 |
| 8159287 | Transistor device and method A field-effect transistor device, including: a semiconductor heterostructure comprising, in a vertically stacked configuration, a semiconductor gate layer between semiconductor source and drain layers, the layers being separated by heterosteps; the gate layer having... | 04/17/2012 |
| 8005124 | Optical bandwidth enhancement of light emitting and lasing transistor devices and circuits A method for producing wide bandwidth laser emission responsive to high frequency electrical input signals, including the following steps: providing a heterojunction bipolar transistor device having collector, base, and emitter regions; providing at least one quantu... | 08/23/2011 |
| 7998807 | Method for increasing the speed of a light emitting biopolar transistor device A method for increasing the speed of a bipolar transistor, includes the following steps: providing a bipolar transistor having emitter, base, and collector regions; providing electrodes for coupling electrical signals with the emitter, base, and collector regions; a... | 08/16/2011 |
| 7953133 | Light emitting and lasing semiconductor devices and methods A two terminal semiconductor device for producing light emission in response to electrical signals, includes: a terminal-less semiconductor base region disposed between a semiconductor emitter region and a semiconductor collector region having a tunnel junction adja... | 05/31/2011 |
| 7913088 | Digital signature and authentication method and apparatus A signing technique of a disclosed identification/digital signature method hereof uses a mixing system based on multiplication in a ring and reduction modulo an ideal q in that ring, while a disclosed verification technique uses special properties of products of ele... | 03/22/2011 |
| 7888625 | Method and apparatus for producing linearized optical signals with a light-emitting transistor A method for producing an optical output in substantially linear relationship with an electrical AC signal, includes the following steps: providing a light-emitting transistor having emitter, base, and collector regions, and associated respective emitter, base, and ... | 02/15/2011 |
| 7888199 | PNP light emitting transistor and method A semiconductor light-emitting transistor device, including: a bipolar pnp transistor structure having a p-type collector, an n-type base, and a p-type emitter; a first tunnel junction coupled with the collector, and a second tunnel junction coupled with the emitter... | 02/15/2011 |
| 7834927 | Apparatus and method for producing video signals A method is disclosed for producing signals representative of an image of a scene including the following steps: providing an image sensor with a lenticular lens pattern thereon, and projecting the image onto the image sensor via the lenticular lens pattern, the ima... | 11/16/2010 |
| 7813396 | Transistor laser devices and methods A method for producing light emission from a semiconductor device includes the following steps: providing a semiconductor base region disposed between a semiconductor emitter region and a semiconductor collector region that forms a tunnel junction adjacent the base ... | 10/12/2010 |
| 7711015 | Method for controlling operation of light emitting transistors and laser transistors A method for controlling operation of a transistor includes the following steps: providing a bipolar transistor having emitter, base and collector regions; applying electrical signals to the transistor to produce light emission from the transistor; effecting photon-... | 05/04/2010 |
| 7696536 | Semiconductor method and device A method for enhancing operation of a bipolar light-emitting transistor includes the following steps: providing a bipolar light-emitting transistor having emitter, base, and collector regions; providing electrodes for coupling electrical signals with the emitter, ba... | 04/13/2010 |
| 7693195 | Semiconductor light emitting devices and methods A method for producing an optical output, including the following steps: providing first and second electrical signals; providing a bipolar light-emitting transistor device that includes collector, base, and emitter regions; providing a collector electrode coupled w... | 04/06/2010 |
| 7688362 | Single sensor processing to obtain high resolution color component signals A method for generating color video signals representative of color images of a scene includes the following steps: focusing light from the scene on an electronic image sensor via a filter having a tri-color filter pattern; producing, from outputs of the sensor, fir... | 03/30/2010 |
| 7667158 | Workpiece structure modification A method of modifying the structure of workpiece (1) is provided. The method comprises a first step of causing relative movement between a power beam and the workpiece (1) so that a region (3) of the workpiece (1) is melted and the melted... | 02/23/2010 |
| 7649713 | Thin-film magnetic head with heating element and heatsink A thin-film magnetic head that has an improved protrusion efficiency under the condition of not only assuring the reliability of the-heating operation, but also stabilizing the read output is provided. The head comprises: a magnetic head element for writing and/or r... | 01/19/2010 |
| 7643247 | β-phase tantalum thin-film resistor and thin-film magnetic head with the resistor A thin-film resistor that has a stable electric resistance, the phase transformation to the α-phase being suppressed even in the high temperature environment, is provided. The thin-film resistor has a layered structure of: a base layer formed of a double-layered fi... | 01/05/2010 |
| 7535034 | PNP light emitting transistor and method A semiconductor light-emitting transistor device, including: a bipolar pnp transistor structure having a p-type collector, an n-type base, and a p-type emitter; a first tunnel junction coupled with the collector, and a second tunnel junction coupled with the emitter... | 05/19/2009 |
| 7408584 | Producing video signals using sensor and lenticular lens pattern A method is disclosed for producing signals representative of an image of a scene including the following steps: providing an image sensor with a lenticular lens pattern thereon, and projecting the image onto the image sensor via the lenticular lens pattern, the ima... | 08/05/2008 |
| 7354780 | Semiconductor light emitting devices and methods A method for producing an optical output, including the following steps: providing first and second electrical signals; providing a bipolar light-emitting transistor device that includes collector, base, and emitter regions; providing a collector electrode coupled w... | 04/08/2008 |
| 7308097 | Digital signature and authentication method and apparatus A method, system and apparatus for performing user identification, digital signatures and other secure communication functions in which keys are chosen essentially at random from a large set of vectors and key lengths are comparable to the key lengths in other commo... | 12/11/2007 |
| 7297589 | Transistor device and method A method for making a heterojunction bipolar transistor includes the following steps: forming a heterojunction bipolar transistor by depositing, on a substrate, subcollector, collector, base, and emitter regions of semiconductor material; the step of depositing the ... | 11/20/2007 |
| 7286583 | Semiconductor laser devices and methods A method for producing controllable light pulses includes the following steps: providing a heterojunction bipolar transistor structure including collector, base, and emitter regions of semiconductor materials; providing an optical resonant cavity enclosing at least ... | 10/23/2007 |
| 7230646 | Single sensor electronic video camera technique with diagonally coupled pixels A method for producing electronic video signals representative of color images of a scene, includes the following steps: providing a sensor having a color filter thereover; providing a motion picture film camera type of lens system that focuses light from the image ... | 06/12/2007 |
| 7227173 | Semiconductor devices and methods A method of forming a semiconductor device includes the following steps: providing a plurality of semiconductor layers; providing means for coupling signals to and/or from layers of the device; providing a quantum well disposed between adjacent layers of the device;... | 06/05/2007 |
| 7209553 | Cutover method and device for telephone lines A method for implementing a cutover of a subscriber telephone line from a telephone line of a first exchange to a telephone line of a second exchange, includes the following steps: providing a controllable switch that is operative, in response to a control signal, t... | 04/24/2007 |
| 7202900 | Method of producing frame pair signals from an image sensor and method for displaying same A method is disclosed for producing progressive scan signals representative of an image of a scene, including the following steps: providing an image sensor onto which the image is projected, the image sensor having a diagonal pixel pattern; producing frame pairs as... | 04/10/2007 |
| 7199391 | Device with quantum dot layer spaced from delta doped layer A method of forming a semiconductor device includes the following steps: providing a plurality of semiconductor layers; providing means for coupling signals to and/or from layers of the device; providing a layer of quantum dots disposed between adjacent layers of th... | 04/03/2007 |
| 7184084 | Method and apparatus for image sensing with CCD A method for producing electronic video signals representative of a focused moveable image includs the following steps: providing a charge coupled device, masking substantially less than half of the lines of the device to form a masked storage area and a substantial... | 02/27/2007 |
| 7110020 | Film digitizer A method for producing electronic signals representative of images on a source film includes the following steps: illuminating the film with a light source to obtain an illuminated frame; providing an electronic image sensor; providing a lens array for projecting th... | 09/19/2006 |
| 7091082 | Semiconductor method and device A method for enhancing operation of a bipolar light-emitting transistor includes the following steps: providing a bipolar light-emitting transistor having emitter, base, and collector regions; providing electrodes for coupling electrical signals with the emitter, ba... | 08/15/2006 |
| 7088391 | Color video camera for film origination with color sensor and luminance sensor A technique for producing electronic video signals representative of color images of a scene includes use of a regular CCD for the color channel and a back-thinned CCD for a luminance channel; a technique for deriving blue and reconstructing full resolution R, G, B ... | 08/08/2006 |
| 7080593 | Controlled cooking system A controlled cooking system (CCS) that monitors, measures, and controls the internal temperature of foods placed in an oven having a Radio Frequency Identification (RFID) antenna(s), a transmitter/receiver/interrogator/reader/microprocessor (TRIRM) module and an RFI... | 07/25/2006 |
| 7061905 | Method and apparatus for communicating signals For use in conjunction with a system for producing, at a transmitter location, time division multiplexed (TDM) frames having a plurality of channels of information signals and framing signals, communicating the frames from the transmitter location to a receiver loca... | 06/13/2006 |
| 7052145 | Displays using solid state light sources Methods and systems are disclosed for displaying images represented by image-representative video signals. In one embodiment, an apparatus is provided for displaying images represented by image-representative input signals, including: rows of micro light sources, su... | 05/30/2006 |
| 7031468 | Speed enhanced cryptographic method and apparatus A method for performing a cryptographic operation involving transforming digital information is described. A digital operator is provided that has a component selected from a large set of elements. The component is expanded into a plurality of factors, each factor h... | 04/18/2006 |
| 6959085 | Secure user identification based on ring homomorphisms A method for authenticating, by a second user, the identity of a first user, that includes a challenge communication from the second user to the first user, a response communication from the first user to the second user, and a verification by the second user, inclu... | 10/25/2005 |
| 6938469 | Method for determining properties of formation fluids A method is disclosed for downhole determination of the resistivity of fluids from formations surrounding an earth borehole, including the following steps: providing a formation testing logging device that includes a coil and a flow line passing axially through the ... | 09/06/2005 |
| 6902276 | Color projector apparatus and method An apparatus for displaying images represented by electronic image information, that includes a light source and a reflective light modulator for optically modulating, with the image information, light from the light source to obtain a diffraction pattern that depen... | 06/07/2005 |
