Patents
Sitemap › G02 - Optics › G02F - Devices or arrangements, the optical operation of which is modified by changing the optical properties of the medium of the devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light, e.g. switching, gating, modulating or demodulating; Techniques or procedures for the operation thereof; Frequency-changing; Non-linear optics; Optical logic elements; Optical analogue/digital converters › G02F 3 - Optical logic elements; Optical bistable devices
Patents for G02F 3 - Optical logic elements; Optical bistable devices (1,678)
04/1999
04/06/1999CA2143846C Non-linear semiconductor optical device
04/06/1999CA2050242C Logarithmic polar coordinate transforming method, vision recognizing method, and optical information processing apparatus
03/1999
03/31/1999EP0904562A1 Optical switching device
03/30/1999US5889566 Durable image storage and gray scale capability under zero field conditions without polymer additives; high contrast ratios, viewing angles, resolution
03/25/1999WO1999014649A2 A method of obtaining an optical signal stream
03/25/1999CA2302237A1 A method of obtaining an optical signal stream
03/24/1999EP0812444A4 Amplitude to phase conversion logic using interference
03/24/1999EP0812443A4 Pattern-recognition computing and method for producing same
03/24/1999EP0800681A4 Energy beam control, signal processing, amplification, and computer logic using interference
03/17/1999EP0807293A4 Frequency-multiplexed logic, amplification, and energy beam control using interference
03/16/1999CA2017971C Semiconductor mesa structured optical processing devices, with added side- surface recombination centers to improve the speed of operation
03/11/1999WO1998055897A3 Optical logic element and methods for respectively its preparation and optical addressing, as well as the use thereof in an optical logic device
03/09/1999US5880862 Optical computer
03/03/1999EP0898731A1 Furnace for rapid thermal processing
03/03/1999EP0898729A1 Optical switching element and a camera comprising such an optical element
02/1999
02/19/1999CA2245301A1 Enhanced isolation digital optical switch
02/03/1999EP0502943B1 Neural networks
01/1999
01/27/1999EP0892938A1 Compositions containing chiral compounds and nematic liquid cristals, and devices using them
01/20/1999CN1205779A Appts. for optical logic and switching functions
01/19/1999US5862286 Optical memory device and optical circuit using optical memory device
01/13/1999EP0767924B1 Holographic neurochip
01/07/1999EP0717896B1 System and method for key distribution using quantum cryptography
12/1998
12/19/1998CA2240243A1 Optical switching device
12/17/1998WO1998057230A1 Method and device for switching, amplification, controlling and modulation of optical radiation
12/17/1998WO1998057229A1 Device for modulation of optical radiation and transmission of inormation
12/17/1998CA2293445A1 Method and device for switching, amplification, controlling and modulation of optical radiation
12/17/1998CA2293376A1 Device for modulation of optical radiation and transmission of information
12/16/1998EP0884668A1 Logarithmic polar coordinate transforming method, vision recognizing method, and optical information processing apparatus
12/15/1998US5850441 System and method for key distribution using quantum cryptography
12/15/1998CA2117825C Fet-based optical receiver
12/10/1998WO1998055897A2 Optical logic element and methods for respectively its preparation and optical addressing, as well as the use thereof in an optical logic device
12/08/1998US5847788 Optical information processor
12/02/1998EP0818017A4 Dual-phase amplification with phase logic
11/1998
11/25/1998EP0717895B1 Key distribution in a multiple access network using quantum cryptography
11/12/1998WO1998050822A1 Zero field multistable cholesteric liquid crystal displays
10/1998
10/27/1998US5828679 Optical clock signal extraction using non-linear optical modulator
10/21/1998EP0871926A1 Optical switching device
10/08/1998WO1998044512A1 An optical memory
10/07/1998EP0868675A1 Apparatus for optical logic and switching functions
09/1998
09/24/1998WO1998041901A1 Optical switching device
09/17/1998WO1998040784A1 Device for switching and modulating light
08/1998
08/26/1998EP0859971A1 Electro-optical switching device
08/20/1998WO1998036316A1 Optical switching element and a camera comprising such an optical element
08/06/1998WO1998034154A1 Liquid crystal parallel optical shifting element, liquid crystal parallel optical shifting device, and parallel optical computing method using it
07/1998
07/21/1998US5784091 Image forming system using digital ASIC and analog ASIC for processing image data and controlling semiconductor laser, and half-tone pixel representing method
07/15/1998EP0853397A2 Optical functional amplifying method and optical functional amplifying device
07/07/1998US5777776 To effect information processing on input signal light beams
07/02/1998WO1998028660A1 Furnace for rapid thermal processing
06/1998
06/23/1998US5770854 Pattern-recognition computing and method for producing same
06/23/1998US5770851 Compact optical logic operator array
06/16/1998US5768378 Key distribution in a multiple access network using quantum cryptography
06/09/1998US5764765 Method of communication
05/1998
05/26/1998US5757912 System and method for quantum cryptography
05/26/1998US5757837 Intracavity quantum well photodetector integrated within a vertical-cavity surface-emitting laser and method of operating same
05/26/1998US5757525 All-optical devices
05/14/1998WO1998020376A1 All-optical wavelength coded logic gates
05/05/1998US5748653 Vertical cavity surface emitting lasers with optical gain control (V-logic)
04/1998
04/21/1998US5742072 Light control substance and light control method using the same
03/1998
03/25/1998EP0559811B1 Optical switch
03/12/1998WO1998010329A1 Optical switching device
03/11/1998EP0828174A2 Optical wavelength converter device and optical pulse phase detecting circuit
02/1998
02/26/1998WO1998008139A1 Electro-optical switching device
02/25/1998CN1174617A Amplitude to phase conversion logic using interference
02/25/1998CN1174616A Pattern-recognition computing and method for producing same
02/25/1998CN1174615A Frequency-multiplexed logic, amplification, and energy beam control using interference
02/25/1998CN1174614A Energy beam control, signal processing, amplification, and computer logic using interference
02/17/1998CA2096522C Optical switch
02/10/1998US5717225 Nonlinear optical transistor
02/03/1998US5714403 Process for producing a matrix of "all optical" vertically-structured quantum well components
01/1998
01/21/1998EP0717897B1 System and method for quantum cryptography
01/20/1998US5710845 All-optical switch
01/14/1998EP0818017A1 Dual-phase amplification with phase logic
01/14/1998EP0659284B1 Non-linear semiconductor optical device
12/1997
12/18/1997WO1997048009A1 Optical logic element and optical logic device
12/18/1997CA2257936A1 Optical logic element and optical logic device
12/17/1997EP0812444A1 Amplitude to phase conversion logic using interference
12/17/1997EP0812443A1 Pattern-recognition computing and method for producing same
12/11/1997WO1997046907A1 All-optical devices
12/02/1997US5694182 Optically addressed spatial light modulating system and method for driving the system
11/1997
11/19/1997EP0807293A1 Frequency-multiplexed logic, amplification, and energy beam control using interference
11/11/1997US5687260 Optical fiber switch using four gate directional coupler and control pulse
11/11/1997US5687021 Method and device for combining optical signals
10/1997
10/29/1997EP0803914A2 Semiconductor image storage apparatus and semiconductor apparatus using logical operation
10/16/1997WO1997038346A1 Compositions containing chiral compounds and nematic liquid cristals, and devices using them
10/15/1997EP0800681A1 Energy beam control, signal processing, amplification, and computer logic using interference
10/14/1997US5677552 Optical control circuit for an optical pnpn thyristor
10/07/1997US5675670 Optical processor using an original display having pixels with an aperture ratio less than that for pixels in an operation pattern display
09/1997
09/30/1997US5673140 Non-linear semiconductor optical device
09/23/1997US5671437 Quantum dot-tunnel device and information processing apparatus and method using same
09/02/1997US5663572 Optical functional semiconductor element
08/1997
08/05/1997US5654538 Optically addressed general purpose programmable logic device
07/1997
07/29/1997US5652433 Bistable switching device containing gadolinium hydride
07/23/1997CN1155094A Passive ring-type optical chamber capable of storing single-way running light beam and application thereof
07/16/1997EP0783725A1 Optical and gate
07/09/1997EP0531377B1 Fabry-perot modulator
07/08/1997US5646395 Differential self-electrooptic effect device
07/03/1997WO1997023799A1 Apparatus for optical logic and switching functions
07/03/1997CA2238487A1 Apparatus for optical logic and switching functions
07/02/1997EP0782061A1 Optical computer
07/01/1997US5644123 Photonic signal processing, amplification, and computing using special interference
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