Polylactide compositions
OF THE INVENTION Optically active R- and S-enantiomers of lactic acid and of the lactides are commercially available and can be homopolymerized or copolymerized by known methods such as bulk (co)poly... Read More
Inventors: Murdoch, Joseph R.; Loomis, Gary L.;, Assignee: E. I. Du Pont de Nemours and Company (Wilmington, DE) |
Foamed liquid crystal polymer film/sheet having improved flexibility and cell uniformity
The present invention is a flexible foamed liquid crystal polymer film or sheet having uniformly small cells or bubbles. The foam cells have mean diameters in the approximate range of 10 to 250 micron... Read More
Inventors: Jester, Randy D.; Frank, Detlef K. M.;, Assignee: Hoechst Celanese Corp. (Somerville, NJ) |
Low power beam switchable antenna arrangement
FIG. 1 illustrates a low power, beam switchable, antenna arrangement in accordance with the present invention. In the antenna arrangement of FIG. 1, a plurality of feedhorns 10.sub.1 -10.sub.N are po... Read More
Inventors: Gans, Michael J.;, Assignee: Bell Telephone Laboratories, Incorporated (Murray Hill, NJ) |
Viewfinder for reflex camera
It is an object of the invention to provide a viewfinder in which the point of focus is coincident over the entire view field of the mat surface while keeping the construction of the camera compact an... Read More
Inventors: Matsui, Sei;, Assignee: Nippon Kogaku K. K. (Tokyo, JP) |
Digital range computer systems for air navigation systems such as tacan
What is claimed is: 1. A computer system for calculating the range between two stations which are in radio communication with each other, said system comprising: a. calculation means for producing an ... Read More
Inventors: Mimken, Frederick J.;, Assignee: General Dynamics Corporation (St. Louis, MO) |
Shock resistant, temperature compensated helical resonator
Temperature compensation in many types of resonators is often accomplished by utilizing metals with different thermal coefficients of expansion. The desired effect is that as one structural part expan... Read More
Inventors: Bunner, Charles Brian David;, Assignee: Northern Electric Company Limited (Montreal, CA) |
Windshield antenna with coupling network in the leadin
What is claimed is: 1. A window comprising a sheet of glass, an elongated antenna having a pair of conductors affixed to one surface of said sheet, an output terminal fixedly mounted on said surface o... Read More
Inventors: Kunert, Heinz; Moebs, Heinz; Sauer, Gerd;, Assignee: Saint-Gobain Industries (Neuilly-sur-Seine, FR) |
On-glass antenna
In accordance with the present invention, an antenna is provided for mounting on a glass plate with a radiator extending from one side of the glass plate and with an electrical connector and electrica... Read More
Inventors: Blaese, Herbert R.;, Assignee: |
Electrically short transmission line antenna
I claim: 1. An electrically short electromagnetic wave antenna comprising at least one section of shorted transmission line having a length less than a quarter wavelength of the operating frequency wh... Read More
Inventors: Whitman, Robert E.;, Assignee: The United States of America as represented by the Secretary of the Army (Washington, DC) |
Antenna matching device
OF THE DRAWING Referring to FIG. 1, two antenna leads 1 are illustrated, each being approximately seven meters long and having a cylindrical tube 2 with a central conductor 3 with the space 4 between... Read More
Inventors: Hodgkinson, Alec J.;, Assignee: Z.S. Electroniques (Proprietary) Limited (ZA) |
Magnetic developing method under A.C. electrical bias and apparatus therefor
It is an object of the present invention to provide a developing method in which a latent image is developed by subjecting a magnetic developer to the action of an electric field and applying a low fr... Read More
Inventors: Kanbe, Junichiro; Toyono, Tsutomu; Hosono, Nagao; Takahashi, Tohru;, Assignee: Canon Kabushiki Kaisha (Tokyo, JP) |
High dynamic analog to digital counter
The object of the invention is to overcome these drawbacks by proposing a converter using a frequency-current or frequency-voltage conversion so as to obtain the digitalization high order values and t... Read More
Inventors: Poujois, Robert;, Assignee: Commissariat a l'Energie Atomique (FR) |
Analog-to-digital converter utilizing devices with current versus voltage characteristics with a plurality of peaks and negative resistance regions between peaks
The present invention is directed to an analog-to-digital converter circuit for receiving an analog input signal and producing a digital output having a plurality of binary bits representative of the ... Read More
Inventors: Kuo, Tai-Haur; Lin, Hung C.;, Assignee: University of Maryland at College Park (College Park, MD) |
High frequency high resolution quantizer
In accordance with the present invention, a high frequency high resolution quantizer is provided which substantially eliminates or reduces disadvantages and problems associated with prior quantizers w... Read More
Inventors: Taddiken, Albert H.;, Assignee: Texas Instruments Incorporated (Dallas, TX) |
Analog-to-digital conversion system and method with reduced sparkle codes
The present invention comprises a system and method for analog-to-digital conversion. The system comprises, in one embodiment, a plurality of comparators each coupled to receive an analog input signal... Read More
Inventors: Knudsen, Niels;, Assignee: National Instruments Corporation (Austin, TX) |
Parallel comparison type analog to digital converter
It is an object of the present invention to provide a parallel comparison type A/D converter having improved monotonic operation in A/D conversion characteristics. It is another object of the present ... Read More
Inventors: Fujita, Tsuneo;, Assignee: NEC (Tokyo, JP) |
Foam supported electromagnetic energy reflecting device
In accordance with the present invention, a device for reflecting electromagnetic energy comprises a solidified foam mass which has reflector means embedded therein for reflecting at least one frequen... Read More
Inventors: Schneeberger, Richard F.; Akers, Charles K.;, Assignee: Calspan Corporation (Buffalo, NY) |
Process for the production of polyester silicate resinous products
I claim: 1. The process for the production of polyester silicate resinous products containing an oxidated silicon compound by mixing and reacting the following components: (a) an oxidated silicon comp... Read More
Inventors: Blount, David H.;, Assignee: |
Notched/diagonally fed twin electric microstrip dipole antennas
The twin electric microstrip dipole antennas are a family of new microstrip antennas. The twin electric microstrip dipole antennas consist of thin, electrically-conducting rectangular shaped elements ... Read More
Inventors: Kaloi, Cyril M.;, Assignee: The United States of America as represented by the Secretary of the Navy (Washington, DC) |
Biaxially stretched polypropylene composite film and electrical insulating film made therefrom
It is therefore an object of the present invention to provide an improved biaxially stretched polypropylene film. A further object of the invention resides in providing a biaxially stretched polypropy... Read More
Inventors: Siefried, Walter; Janocha, Siegfried; Crass, Gunther;, Assignee: Hoechst Aktiengesellschaft (Frankfurt am Main, DE) |
Magnetic recording medium
OF PREFERRED EMBODIMENTS Turning to FIG. 1 there is depicted a molded sheet 1, comprising layer 3 and bonded to one surface thereof a ferromagnetic plate 2. The layer 3 comprises an organic binder, s... Read More
Inventors: Suzuki, Kazuo; Akuta, Shinichiro;, Assignee: Kanegafuchi Kagaku Kogyo Kabushiki Kaisha (Osaka, JA) |
Apparatus and method for converting a number in binary format to a decimal format
What is claimed is: 1. A converter apparatus used with a two input arithmetic logic unit (ALU) in a computer system for converting a number in a binary format to a decimal format for use in decimal ar... Read More
Inventors: Bradley, John J.; Stoffers, Brian L.; Widen, Melinda A.;, Assignee: Honeywell Information Systems Inc. (Waltham, MA) |
Rotary magnetic head assembly
It is an object of the present invention to provide a rotary magnetic head assembly which would be simple to manufacture and easy to operate. Another object of the invention is to provide a highly rel... Read More
Inventors: Lavrentiev, Konstantin A.; Kretov, Svyatoslav D.; Koshelev, Alexandr G.;, Assignee: |
Apparatus for electrically converting an analog signal into a digital representation
Briefly, this invention overcomes the deficiencies of the prior art by providing a method for electrically converting an analog signal into a digital representation in a manner that maximizes noise re... Read More
Inventors: Neuner, James A.; Einolf, Jr., Charles W.; Szabo, Andras I.;, Assignee: Westinghouse Electric Corp. (Pittsburgh, PA) |
Capacitive DAC to filter interface circuit
An object of the present invention is to provide an interface circuit for coupling a capacitive DAC to a filter. Another object of this invention is to provide a new and improved capacitive DAC to fil... Read More
Inventors: Kelley, Stephen H.; Ulmer, Richard W.;, Assignee: Motorola, Inc. (Schaumburg, IL) |
Fail-safe alarm circuit
In the present invention, a device which allows current to flow in only one direction, such as a diode, is used to insure that the supervisory current in an alarm circuit is flowing in the intended di... Read More
Inventors: Prysby, Daniel G.;, Assignee: Honeywell Inc. (Minneapolis, MN) |
Signal converter
What is claimed is: 1. A uniformalized digital-to-analog converter, comprising in combination: a digital translator responsive to the most significant bits of an input and gernerating a binary coded l... Read More
Inventors: Tyrrel, Sylvan F.;, Assignee: |
Surface-mounted single package data acquistition system
OF THE INVENTION Referring now to FIG. 1, a block diagram is shown illustrating a preferred embodiment of a surface-mounted single package data acquisition system according to the present invention. ... Read More
Inventors: Lewis, Charles H.; Edgar, James P.; Metzger, Heinz-Juergen;, Assignee: Burr-Brown Limited (Livingston, GB6) |
Double integration, delta-sigma, analog-digital coder
The object of the present invention is to obviate these disadvantages and more particularly to provide a double integration, delta-sigma coder, which is relatively insensitive to noise and has easily ... Read More
Inventors: Senn, Patrice;, Assignee: |
Radar altimeter
The present radar altimeter works in the C-band in accordance with the so-called frequency modulated continuous wave principle (FMCW). According to the invention the altimeter is characterized by micr... Read More
Inventors: Trummer, Guenther; Koerber, Richard; Mehltretter, Ludwig;, Assignee: Messerschmitt-Boelkow-Blohm GmbH (Munich, DE) |
Radio 
