Multi-axis universal circuit board test fixture
We claim: 1. A test fixture apparatus for testing the operation of a circuit board containing a number of circuit elements, comprising: a supporting base member having an upstanding wall around three ... Read More
Inventors: Hunt, Bill; Parshotam, Mahesh;, Assignee: Huntron, Inc. (Mill Creek, WA) |
Probe card system and method
An improved prober to test head interfacing system and method is provided by virtue of the present invention, otherwise referred to herein as an autoloader. The system provides for easy replacement of... Read More
Inventors: Anderson, James C.; Phillips, Brian P.; Honek, Charles;, Assignee: Xandex, Inc. (Petaluma, CA) |
Interconnect architecture for field programmable gate array using variable length conductors
According to one aspect of the invention, a repeatable structure is provided which includes a logic unit capable of receiving input signals from a plurality of input lines and providing a plurality of... Read More
Inventors: Pierce, Kerry M.; Erickson, Charles R.; Huang, Chih-Tsung; Wieland, Douglas P.;, Assignee: Xilinx, Inc. (San Jose, CA) |
Input-output unit
The invention has been made to eliminate the above problems, and therefore a first object of the invention is to provide an input-output unit that can provide excellent viewability of operation inform... Read More
Inventors: Nishikawa, Eiji; Mita, Tsunemasa; Araki, Masaaki; Suzuki, Kazuhiro; Itoh, Kazuyoshi; Minomoto, Toshikazu;, Assignee: Fuji Xerox Co., Ltd. (Tokyo, JP) |
Active matrix type display
An object of the present invention is to provide an active matrix type display from which a large storage capacity can be obtained without thinning an insulating layer between electrodes nor expanding... Read More
Inventors: Nagahiro, Yoshio;, Assignee: Fujitsu Display Technologies Corporation (Kawasaki, JP) |
Fiber optic directional coupler
We claim: 1. In a method of making a fiber optic directional coupler, the steps of: providing two unitary blocks of rigid material with first and second parallel planar faces; forming a slot across th... Read More
Inventors: Shaw, Herbert J.; Bergh, Ralph A.; Kotler, George A.;, Assignee: The Board of Trustees of Leland Stanford Junior University (Stanford, CA) |
Electronic still camera
It is a principal object of the present invention to provide an electronic still camera provided with a recording system improved to enable good recording and reproduction on a magnetic disc. The reco... Read More
Inventors: Ishiguro, Yasuaki; Nara, Yoshio; Araki, Yoshitaka;, Assignee: Nikon Corporation (Tokyo, JP) |
Interchangeable lens camera system having improved control information communication facility
It is, therefore, an object of the present invention to provide an interchangeable-lens type camera system in which it is possible to smoothly control a lens assembly. It is another object of the pres... Read More
Inventors: Mabuchi, Toshiaki; Nishikawa, Yoshikazu;, Assignee: Canon Kabushiki Kaisha (Tokyo, JP) |
Original reading apparatus
It is an object of the present invention to provide a reading apparatus having a staggered compound-eye optical system which is inexpensive and easy to manufacture. It is a further object of the prese... Read More
Inventors: Tokumitsu, Jun; Minoura, Kazuo;, Assignee: Canon Kabushiki Kaisha (Tokyo, JP) |
Materials for optical use
What is claimed is: 1. A material for optical use obtained by subjecting to radical copolymerization 90 to 20% by weight of a (meth)acrylate compound represented by the following formula (I) and 10 to... Read More
Inventors: Sudo, Ryoichi; Kobata, Makoto; Miwa, Hiroaki; Tajima, Tetsuo;, Assignee: Hitachi, Ltd. (Tokyo, JP) |
Autothermal steam reforming process
I claim: 1. A method for producing a raw ammonia synthesis gas from a fresh hydrocarbon feed which consists of: (a) forming a first mixed feed comprising steam, a major portion of the fresh hydrocarbo... Read More
Inventors: Le Blanc, Joseph R.;, Assignee: The M. W. Kellogg Company (Houston, TX) |
Display depolarizer
OF THE PREFERRED EMBODIMENT Referring initially to FIGS. 1 and 2, there is shown a vehicle accessory 10 such as a rearview mirror which includes a generally concave mirror housing 12 mounted to the v... Read More
Inventors: Beukema, Jack A.;, Assignee: Prince Corporation (Holland, MI) |
Color corrector for embedded prisms
In carrying out principles of the present invention, in accordance with a preferred embodiment thereof, an embedded prism includes a prism body formed of a first material, and prism means mounted with... Read More
Inventors: Cross, Jr., Eugene W.;, Assignee: Hughes Aircraft Company (Los Angeles, CA) |
Liquid-crystalline dielectric
OF THE INVENTION The reason for this highly advantageous effect is not yet clear. Possibly, the dispersion forces between the alkyl and alkoxy groups which are linked to aromatic or saturated rings, ... Read More
Inventors: Eidenschink, Rudolf; Pohl, Ludwig; Weber, Georg; Del Pino, Fernando;, Assignee: Merck Patent Gesellschaft mit beschrankter Haftung (Darmstadt, DE) |
Liquid crystal phase
We claim: 1. A liquid crystal phase having at least five liquid crystal components and a threshold voltage <1.6 volt, and containing at least 18% of a highly polar component of reduced degree of as... Read More
Inventors: Scheuble, Bernhard; Weber, Georg; Krause, Joachim;, Assignee: Merck Patent Gesellschaft mit beschrankter Haftung (Darmstadt, DE) |
Light modulating material and method for preparing same
The invention is directed to improved, durable light modulating materials which are capable of rapid, reversible switching between a substantially translucent light scattering or diffusing state and a... Read More
Inventors: Mullen, Patrick W.; Nobile, Frederick E.;, Assignee: Kent Research Corporation (Kent, OH) |
Cerium (IV) compound
OF THE PREFERRED EMBODIMENTS OF THE INVENTION More particularly according to this invention, in the first stage of the subject process, a colloidal dispersion of a compound of cerium (IV) is prepared... Read More
Inventors: Chane-Ching, Jean-Yves;, Assignee: Rhone-Poulenc Specialites Chimiques (Courbevoie, FR) |
Liquid crystal device with louver means located behind the liquid crystal device
I claim: 1. A display device comprising a liquid crystal cell reversibly switchable between light transparent and light scattering states, said cell being designed to be viewed along directions inters... Read More
Inventors: Sussman, Alan;, Assignee: RCA Corporation (New York, NY) |
Novel bistable light modulators and display element and arrays therefrom
What is claimed is: 1. A bistable light modulator which comprises: (a) a curved flexible membrane which is adapted to assume only either a stable concave or stable convex configuration and (b) optical... Read More
Inventors: Nadir, Mark T.;, Assignee: Macklin; Kenneth E. (White Plains, NY) |
Method and electrolytic display for selectively displaying an image
OF THE INVENTION The electrolytic display cell 10, shown in FIGS. 1 and 2 is an experimental cell capable of displaying only a single fixed format image. It consists of a rectangular array of optical... Read More
Inventors: Dowden, Barry F.; Barclay, Donald J.; Kirkman, David H.;, Assignee: International Business Machines Corporation (Armonk, NY) |
Lens support
It is a primary object of the present invention to provide a lens support free of the aforementioned and other such disadvantages. It is another object of the invention to provide a lens support of th... Read More
Inventors: Dziemba, Peter; Immerheiser, Dieter;, Assignee: MAP Mikrofilm Apparatebau Dr. Poehler GmbH & Co KG (Ober-Morlen, DE) |
Cascaded, dual cell transflective liquid crystal display
OF THE PREFERRED EMBODIMENTS FIG. 1 shows two cascaded liquid crystal cells 10 and 11 separated by a transflective element 12 positioned between the rear of cell 10 and the front of cell 11. A light ... Read More
Inventors: Haim, Elias S.; Albert, Richard;, Assignee: General Electric Company (Schenectady, NY) |
Backhoe attachment
What is claimed is: 1. An earth moving attachment and connection to an earth moving implement having teeth extending along substantially parallel longitudinal axes from the lower end of a bucket, said... Read More
Inventors: George, Anthony Joseph;, Assignee: |
Liquid crystal device with a smectic chiral liquid crystal and with a rectifier in series with each pixel
It is therefore an object of the invention to provide a liquid crystal device of a new driving mechanism making use of a ferroelectric liquid crystal. It is another object of the present invention to ... Read More
Inventors: Sakayori, Hiroyuki; Kobayashi, Ippei;, Assignee: Semiconductor Energy Laboratory Co., Ltd. (Atsugi, JP) |
Lamp-adjusting mechanism, particularly for photographic enlarging apparatus
I claim: 1. An adjustable light source for a photograhic projector apparatus having a condenser illuminating system, comprising a condenser having an optical axis, a lamp having a characteristic profi... Read More
Inventors: Pramstraller, Wilmuth;, Assignee: Durst AG. Fabrik Fototechnischer Apparate Bozen (Blzano-Bozen, IT) |
Scannable light emitting diode array and method
While the following preferred embodiment of the invention is disclosed with particular reference to a monolithic array of gallium arsenide phosphide light emitting diodes, it will be appreciated that... Read More
Inventors: Grenon, Lawrence A.;, Assignee: Motorola, Inc. (Chicago, IL) |
Slit lamp microscope
According to the present invention, the above and other objects can be accomplished by a slit lamp microscope comprising a light source, a first optical path for directing light from said source throu... Read More
Inventors: Takizawa, Shiro; Nishimura, Shinichi;, Assignee: Tokyo Kogaku Kikai Kabushiki Kaisha (Tokyo, JP) |
Electronic device for detecting the energized state of a liquid crystal display cell
An object of the present invention is to provide an electronic device for use, for example, in a timepiece or electronic calculator which is capable of preventing a liquid crystal display cell from be... Read More
Inventors: Ebihara, Heihachiro; Sekiya, Fukuo;, Assignee: Citizen Watch Co., Ltd. (Tokyo, JA) |
Illumination apparatus
It is accordingly a primary object of the present invention to provide an illumination apparatus wherein both a high collecting efficiency and uniformity in the intensity distribution of the light bea... Read More
Inventors: Ohta, Masakatsu;, Assignee: Canon Kabushiki Kaisha (Tokyo, JP) |
Illuminating optical system
It is an object of the present invention to provide an illuminating optical system which enables a desired printing wavelength selected from a wide wavelength range from the UV area to the Deep UV are... Read More
Inventors: Ota, Masakatu; Omata, Takashi;, Assignee: Canon Kabushiki Kaisha (Tokyo, JP) |
LCD 
