Process for applying a metallic image in register to a document of value
The instant invention is directed to a process for preventing the counterfeiting of valuable documents by applying extremely thin layers of metal to the document at predetermined locations. Applicati... Read More
Inventors: Miller, Lee H.;, Assignee: |
Optical wavelength converter device
In view of the aforesaid drawbacks of the conventional optical wavelength converter devices, it is an object of the present invention an optical wavelength converter device capable of actually extract... Read More
Inventors: Okazaki, Yoji; Kamiyama, Koji; Okazaki, Masaki;, Assignee: Fuji Photo Film Co., Ltd. (Kanagawa, JP) |
Leak locating and mapping system and method
These and other objects are achieved by a leak locator constructed according to the present invention which comprises a recording medium, a laser, optical components which cooperate with the laser to ... Read More
Inventors: Barkhoudarian, Sarkis;, Assignee: Rockwell International Corporation (El Segundo, CA) |
Support assembly for multiple development stations in an electrostatographic reproduction apparatus
This invention is directed to a support assembly in an electrostatographic reproduction apparatus having multiple development stations respectively containing different color marking particles for sel... Read More
Inventors: Joseph, Brian J.; Mort, Thomas W.; Stern, Philip A.; Westcott, Robert M.;, Assignee: Eastman Kodak Company (Rochester, NY) |
Hologram memory apparatus
What is claimed is: 1. A hologram memory apparatus for recording information as one-dimensional holograms, comprising: optical source means for producing a coherent light beam; beam splitter means for... Read More
Inventors: Ishii, Akira; Ueno, Keiichi;, Assignee: Nippon Telegraph and Telephone Public Corporation (Tokyo, JA) |
Optical waveguide containing P.sub.2 O.sub.5 and GeO.sub.2
It is an object of this invention to provide an economical and more easily formed optical waveguide fiber that overcomes the heretofore noted disadvantages. Another object of this invention is to prov... Read More
Inventors: Aggarwal, Ishwar D.; Randall, Eric N.;, Assignee: Corning Glass Works (Corning, NY) |
Optical fibers having crystalline material and method of making same
OF THE INVENTION Referring to the accompanying drawing, an optical fiber or optical fiber preform according to the present invention consists of a glass tube 1 surrounding a crystalline rod whose com... Read More
Inventors: Lighty, Paul E.;, Assignee: International Standard Electric Corporation (New York, NY) |
Second harmonic generation with 5-chloro-2-nitroaniline
5-Chloro-2-nitroaniline suitable for use in the present invention is crystalline in form, and is preferably in solid crystalline form. Three crystal structures or polymorphs have been identified by X... Read More
Inventors: Gerbi, Diana J.; Leung, Peter C.; Stofko, Jr., John J.;, Assignee: Minnesota Mining and Manufacturing Company (St. Paul, MN) |
Nonlinear optical devices
What is claimed is: 1. An optical device with an organic nonlinear optical component comprising an optically transparent medium of a wholly aromatic polymer which exhibits a third order nonlinear opti... Read More
Inventors: Teng, Chia-Chi; Stamatoff, James B.; Buckley, Alan; Garito, Anthony F.;, Assignee: Hoechst Celanese Corporation (Somerville, NJ) |
Device and method for doubling the frequency of elecromagnetic radiation of a given frequency
OF THE PREFERRED EMBODIMENT Referring now to the drawings, FIG. 2 illustrates diagrammatically a device embodying the invention for doubling the frequency of electromagnetic radiation input thereto. ... Read More
Inventors: Dobson, Peter J.;, Assignee: U.S. Philips Corp. (New York, NY) |
Optical wavelength converter device and method of manufacturing same
In view of the aforesaid problems of the conventional optical wavelength converter device, it is an object of the present invention to provide an optical wavelength converter device in the form of a t... Read More
Inventors: Harada, Akinori; Okazaki, Yoji;, Assignee: Fuji Photo Film Co., Ltd. (Kanagawa, JP) |
Optical coupler with mode-mixing refractive microparticles
FIG. 1 illustrates one embodiment of an optical coupler that is utilized as an optical splitter with optical source 101 transmitting light through optical mixing core 102 to optical fibers 104. Optic... Read More
Inventors: Blyler, Jr., Lee L.; Filas, Robert W.; Grimes, Gary J.;, Assignee: AT&T Bell Laboratories (Murray Hill, NJ) |
Small-particle semiconductors in rigid matrices
These objects are achieved by the present invention, which provides an article of manufacture consisting essentially of porous glass, the pores of which contain a semiconductor and a polymer. The inve... Read More
Inventors: Herron, Norman; Wang, Ying;, Assignee: E. I. Du Pont de Nemours and Company (Wilmington, DE) |
Fiber type wavelength conversion element
An object of the present invention is to provide a fiber type wavelength conversion element with high efficiency, using Cherenkov radiation type phase matching. The fiber type wavelength conversion el... Read More
Inventors: Chikuma, Kiyofumi;, Assignee: Pioneer Electronic Corporation (Tokyo, JP) |
Recursive filter implemented as a matched clutter filter
This invention provides apparatus and method for the implementation of a recursive filter and more particularly for the implementation of a matched clutter filter. The general purpose of the invention... Read More
Inventors: Constant, James Nickolas;, Assignee: |
Image processing system using incoherent radiation and spatial filter hologram
Having thus described the present invention, what is claimed is: 1. A method of producing a spatial filter which when combined with a lens in a system for processing incoherent electromagnetic radiati... Read More
Inventors: Ward, III, Joseph E.;, Assignee: Minnesota Mining and Manufacturing Company (St. Paul, MN) |
Electronic musical instrument employing holographic memory
An object of the present invention, therefore, is to provide an electronic musical instrument of the waveshape memory type, which is capable of eliminating those drawbacks of the known waveshape memor... Read More
Inventors: Iyeta, Motoi;, Assignee: Nippon Gakki Seizo Kabushiki Kaisha (Hamamatsu, JP) |
Tear resistant drum head assembly
The present invention involves a two-ply laminated drum head assembly construction; wherein, the primary layer comprises an integral sheet of polyester film and the secondary layer comprises a scored ... Read More
Inventors: Donohoe, David G.;, Assignee: |
Electronic musical instrument employing tru-scale interval system for prevention of overtone collisions
In view of the foregoing, one of the objects of the present invention is to provide a novel and useful electronic keyboard instrument with a retrievable system of stored frequencies within an octave w... Read More
Inventors: Dinnan, James A.; Dinnan, Joseph A.;, Assignee: Meta-C Corporation (Athens, GA) |
Touch response device for electronic musical instrument
It is therefore an object of the invention to provide a touch response device for an electronic musical instrument which generates initial-touch-detection output and after-touch-detection output with ... Read More
Inventors: Watanabe, Keisuke;, Assignee: Yamaha Corporation (Hamamatsu, JP) |
Photoinduced grating in B.sub.2 O.sub.3 containing glass
OF EXEMPLARY EMBODIMENTS Since the concentration of B.sub.2 O.sub.3 affects the refractive index as stated above, the refractive index will display a maxima at minima B.sub.2 O.sub.3 concentration an... Read More
Inventors: Ainslie, Benjamin J; Williams, Douglas L; Maxwell, Graeme D; Kashyap, Raman; Armitage, Jonathan R;, Assignee: British Telecommunications public limited company (London, GB) |
Method and apparatus for lossless compression and decompression of image data
According to the teachings of this invention, a compression and decompression apparatus may be created within a single application specific integrated circuit (ASIC) chip allowing for the transpositio... Read More
Inventors: Klein, Robert; Grosse, Debora Y.; Wilds, Karen A.;, Assignee: Unisys Corporation (Blue Bell, PA) |
Automatic correction for color printing
What is claimed is: 1. A method to process color component signals for printing accurate color image reproductions comprising steps of: scanning a color image to be reproduced to derive said color com... Read More
Inventors: Dattilo, Anthony J.;, Assignee: International Business Machines Corporation (Armonk, NY) |
Ultraviolet radiation dosimeter
We claim: 1. A device for detecting, monitoring and measuring visible and ultraviolet radiation exposures or doses comprising at least one first liquid crystal element mounted on a card or plate for p... Read More
Inventors: Sanders, Corey L.; Makow, David M.;, Assignee: Canadian Patents & Development Ltd. (Ottawa, CA) |
Data carrier card
I claim: 1. A data carrier comprising: (a) a body of predetermined thickness having a layer which is opaque to radiation of a predetermined wavelength; and (b) a plurality of conductors of said radiat... Read More
Inventors: Ehrat, Kurt;, Assignee: Zeag Systems A.G. (Schlieren, CH) |
Cathode ray tube with an electrophoretic getter
What is claimed is: 1. A cathode ray tube comprising: A. a cylindrical neck; B. a feed-through sealing element positioned at one end of the neck, said sealing element closing said end of the neck; C. ... Read More
Inventors: Giorgi, Ettore;, Assignee: SAES Getters SpA (Milan, IT) |
Color image processing apparatus capable of detecting a color or monochromatic image
In consideration of the foregoing, an object of the present invention is to achieve discrimination of a black-and-white original image or a color original image in efficient and precise manner. Anothe... Read More
Inventors: Yamada, Masanori;, Assignee: Canon Kabushiki Kaisha (Tokyo, JP) |
Process for recording holographic information
We claim: 1. A process for recording spatially modulated data and for the recording of holographic information in situ and in real time by means of a device adapted to record a hologram on a recording... Read More
Inventors: Reich, Shymon; Friesem, Albert A.;, Assignee: Yeda Research & Development Co., Ltd. (Rehovot, IL) |
Image processor which converts image with poor resolution into image with improved resolution
OF THE PREFERRED EMBODIMENTS A description will now be given of a method of a first embodiment according to the present invention, with reference to FIGS. 2 and 3. In this embodiment, a target pixel ... Read More
Inventors: Koike, Kazumasa;, Assignee: Ricoh Company, Ltd. (Tokyo, JP) |
Receptacle design for use with electronic key-like device
The aforementioned patents and patent applications describe a key-like devices which, in the preferred form of a microelectronic data key, provide relatively large amounts of data bit storage with ver... Read More
Inventors: Flies, William P.;, Assignee: Datakey, Inc. (Burnsville, MN) |
Optical Systems 
