Dual mode feed horn
I claim as my invention: 1. A dual-mode feed horn for microwave antennas, said horn comprising a multi-step microwave transformer having a series of at least three serially connected abrupt steps with... Read More
Inventors: Hansen, Laurence H.;, Assignee: Andrew Corporation (Orland Park, IL) |
High accuracy feedback control system for a phased array antenna
OF THE INVENTION FIG. 2 illustrates a first embodiment of the present invention. The distribution system, phase shifters, and method of supplying the antenna elements are similar to that of FIG. 1; h... Read More
Inventors: McVeigh, Peter J.; Rudish, Ronald M.;, Assignee: Eaton Corporation (Cleveland, OH) |
Antenna feed arrangement for correcting for astigmatism
The foregoing problem has been solved in accordance with the present invention which relates to an antenna feed arrangement for correcting for astigmatism caused by an offset main reflector of an ante... Read More
Inventors: Dragone, Corrado; Semplak, Ralph A.;, Assignee: AT&T Bell Laboratories (Murray Hill, NJ) |
Decoding apparatus, coding apparatus, and transmission system employing two intra-frame error concealment methods
The present invention deals with the above error-concealment problems by using both the temporal replacement method and DC replacement method, selecting one method or the other on a block-by-block bas... Read More
Inventors: Sato, Noriyuki; Fukunaga, Shigeru;, Assignee: Oki Electric Industry Co., Ltd. (Tokyo, JP) |
Multipurpose memory system for use in a graphics system
Various embodiments of a multipurpose memory device for use in a graphics system are disclosed. In one embodiment, a graphics system may include a frame buffer configured to store data, a processing d... Read More
Inventors: Emberling, Brian D.; Lavelle, Michael G.;, Assignee: Sun Microsystems, Inc. (Santa Clara, CA) |
Angular-diversity radiating system for tropospheric-scatter radio links
The present invention provides an angular-diversity radiating system having a main reflector, a subreflector, a transmitting horn and at least two receiving horns wherein the subreflector is centered ... Read More
Inventors: Bassi, Cesare; Deponti, Elio;, Assignee: GTE Telecommunicazioni, S.p.A. (Milan, IT) |
Linear array antenna with E-plane backlobe suppressor
The backlobe and sidelobe problems mentioned above are overcome and other advantages are provided by an antenna system according to the invention. Such a system includes a radiation suppressor having ... Read More
Inventors: Kumpfbeck, Richard J.; Hannan, Peter W.;, Assignee: Hazeltine Corporation (Greenlawn, NY) |
Methods of enhancing electronmagnetic radiation properties of encapsulated circuit, and related devices
Methods of forming electronic signal transmitting/receiving devices and electronic signal transmitting/receiving devices are described. In one implementation, integrated circuitry including transponde... Read More
Inventors: Tuttle, Mark E.; Lake, Rickie C.;, Assignee: Micron Communications, Inc. (Boise, ID) |
Heat transfer type thermal recording apparatus
In view of these circumstances, it is an object of this invention to provide a heat transfer type thermal recording apparatus which permits erasure of information remaining on an ink donor sheet which... Read More
Inventors: Inui, Toshiharu; Kikuchi, Yoshiki; Ohmori, Takashi;, Assignee: Fuji Xerox Co., Ltd. (Tokyo, JP) |
Method of preparation of a substrate made of plastic material for its subsequent metallization
What we claim is: 1. Method of preparation of a substrate made of plastic material for its subsequent metallization, characterized by the fact that one attacks the surface of the substrate to be metal... Read More
Inventors: Ehrbar, Jean-Paul; Ganguillet, Claude;, Assignee: Ebauches S.A. (Neuchatel, CH) |
Solid curable polyene compositions and method of coating therewith
What is claimed is: 1. A process which comprises: A. applying to the surface of a substrate a solid layer of a curable composition consisting essentially of 1. a solid polyene which is a reaction prod... Read More
Inventors: Morgan, Charles R.;, Assignee: W. R. Grace & Co. (New York, NY) |
Photopatternable dielectric compositions, method for making and use
What I claim as new and desire to secure by Letters Patent of the United States is: 1. A photosensitive silicone-polyamide acid composition comprising by weight, (A) up to 95% of an inert organic solv... Read More
Inventors: Davis, Gary C.;, Assignee: General Electric Company (Schenectady, NY) |
Flat photographic film produced by heating above the second order transition temperature of the base
It is the object of this invention to provide a useful and practical method to remove curl in films, particularly biaxially oriented polyester film, and more particularly curl resulting from storage i... Read More
Inventors: Arvidson, Jr., Harold C.; Stottlemyer, Quayton Ray;, Assignee: E. I. Du Pont de Nemours and Company (Wilmington, DE) |
Process for the preparation of relief copies
OF PREFERRED EMBODIMENTS In accordance with the invention, the process for the preparation of relief copies involves imagewise irradiating a radiation-sensitive copying material comprising a layer su... Read More
Inventors: Buhr, Gerhard; Geus, Marie-Luise;, Assignee: Hoechst Aktiengesellschaft (Frankfurt am Main, DE) |
Method of preparing electrocatalyst for an oxygen depolarized cathode electrolytic cell
OF THE INVENTION The cathodic reaction 2H.sub.2 O+2e.sup.- .fwdarw.H.sub.2 +2OH.sup.- is actually reported to be a two-step reaction where the first step is H.sub.2 O+e.sup.- .fwdarw.H.sub.ads +OH.su... Read More
Inventors: Chamberlin, Ronald D.;, Assignee: PPG Industries, Inc. (Pittsburgh, PA) |
Graphic display with right-protected areas
In accordance with the present invention, a display protection system and technique is disclosed which allows the generation of information which rapidly defines the protected positions for each scan ... Read More
Inventors: Bottorf, Scott A.; Robb, James R.;, Assignee: Rockwell International Corporation (El Segundo, CA) |
Device for transmitting signals by radio and cable between a central control and recording system and data acquisition devices
The principal object of the present invention is to provide a device for transmitting signals by radio and/or cable between a central control and recording system and a plurality of data acquisition d... Read More
Inventors: Rialan, Joseph; Thierry, Gerard;, Assignee: Institut Francais du Petrole (Rueil-Malmaison, FR) |
Wireless weather station
OF THE INVENTION In order for the installation of the sensor assembly of the weather station to be truly wireless, power for the transducers and the transmitter, which communicates with the receiver ... Read More
Inventors: Baer, John S.; Bohrer, Stephen K.; Vietti, Michael A.;, Assignee: |
Apparatus for remote signalling on a digital transmission link
The present invention provides an apparatus for implementing a remote signalling method for use from equipments distributed along a digital transmission link and consists in transmitting the signallin... Read More
Inventors: Lacroix, Jean-Claude; Franco, Pierre; Le Gall, Stephane; Bourret, Gerard; Pochet, Jacques;, Assignee: Compagnie Industrielle Des Telecommications Cit-Alcatel (Paris, FR) |
Microfilled dental composite and method using the same
What is claimed is: 1. A filled-resin dental composite consisting essentially of
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Component Parts by Weight
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Inventors: Ibsen, Robert L.; Glace, William R.;, Assignee: Den-Mat, Inc. (Santa Maria, CA) |
Dental resin materials
This invention provides resinous dental compositions comprising polycarbonate dimethacrylate condensation products as a principal component, and a secondary monomer such as BIS-GMA or polyurethane dim... Read More
Inventors: Waknine, Samuel;, Assignee: Jeneric/Pentron, Inc. (Wallingford, CT) |
Method and apparatus for finding horizons in 3D seismic data
What is claimed is: 1. Apparatus for automatically picking horizons from a three dimensional volume of seismic data traces and creating an indicia volume representative of horizons in the earth's crus... Read More
Inventors: Hildebrand, Harold A.; Alam, Aftab; Caragounis, Peter;, Assignee: Landmark Graphics Corporation (Houston, TX) |
Method for enhancing seismic data
In one embodiment, the present invention is a method for enhancing a seismic data trace comprising the steps of (i) transforming the seismic data trace to a zero-phase seismic data trace; (ii) locatin... Read More
Inventors: Baker, III, Robert Allison;, Assignee: Exxon Production Research Company (Houston, TX) |
Process and apparatus for digitally clamping pulse code modulated video signals
In the clamping process of the present invention, a difference between a predetermined nominal binary value and the binary value of a binary encoded signal is determined by a digital subtracter means.... Read More
Inventors: Heitmann, Jurgen;, Assignee: Robert Bosch GmbH (Stuttgart, DE) |
Method of determining 3-D acoustic velocities for seismic surveys
The invention may be implemented into a computer program that may be run on conventional desktop workstations. Interpreted two-way time information from multiple 2-D lines are read into the system, al... Read More
Inventors: Sicking, Charles J.; Campbell, Bruce S.;, Assignee: Atlantic Richfield Company (Los Angeles, CA) |
Process and apparatus for cross-correlating digital imagery
It is therefore apparent from the above that there exists a significant need for a system and process which effectively uses low resolution image data, such as that provided by satellites, in a manner... Read More
Inventors: Koeln, Gregory T.; Mitchell, Roger A.;, Assignee: Earth Satellite Corporation (Rockville, MD) |
Computer controlled downhole tools for production well control
The above-discussed and other problems and deficiencies of the prior art are overcome or alleviated by the production well control system of the present invention. In accordance with a first embodimen... Read More
Inventors: Bussear, Terry R.; Weightman, Bruce;, Assignee: Baker Hughes Incorporated (Houston, TX) |
Interpreting formation tops
What is claimed is: 1. A method of interpreting reference and target well log curves recorded from different wells to help determine the approximate depth of related features at the well locations, th... Read More
Inventors: Van Bemmel, Peter P.; Pepper, Randolph E. F.; Bouzas, Horacio R.;, Assignee: GeoQuest, a division of Schlumberger Technology Corporation (Houston, TX) |
Multiple image camera
What is claimed is: 1. Apparatus for receiving video output from a patient scanning device and photographing a plurality of video displays onto a sheet of film, comprising: a video monitor adapted for... Read More
Inventors: Barney, Howard Hunter;, Assignee: Dunn Instruments, Inc. (San Francisco, CA) |
Multiple image camera
What is claimed is: 1. Apparatus for photographing a plurality of displays onto a sheet of film, comprising a lens adapted to receive light from a display tube; holder means for holding a sheet of fil... Read More
Inventors: Barney, Howard H.;, Assignee: Dunn Instruments, Inc. (San Francisco, CA) |
Graphic Cards 
