Soft-switching audiometer
I claim: 1. Soft-switching audiometer having a source (10) of audio signals; an amplifier (12) connected to the source, and an audio transducer (13) providing amplified audio output; a first switch (1... Read More
Inventors: Schmidt, Wolfgang;, Assignee: Robert Bosch GmbH (Stuttgart, DE) |
Semiconductor static memory device with cell grounding means for reduced power consumption
It is a primary object of the present invention to eliminate the disadvantages inherent to the above-mentioned prior art approaches. Another object of the invention is to provide a semiconductor stati... Read More
Inventors: Anami, Kenji;, Assignee: Mitsubishi Denki Kabushiki Kaisha (Tokyo, JP) |
Speech synthesizing apparatus and method
Therefore, a principal object of the present invention is to provide a novel speech synthesizing apparatus and method. Another object of the present invention is to provide a speech synthesizing appar... Read More
Inventors: Fujimoto, Mitsuo; Kitamura, Toru;, Assignee: Sanyo Electric Co., Ltd. (Osaka, JP) |
Electronic attenuator
OF THE PREFERRED EMBODIMENTS. FIG. 1 and FIG. 2 show an embodiment to which an attenuator according to the present invention is applied to a ventilating duct of an air conditioner. In FIG. 1, an elec... Read More
Inventors: Ito, Hiroyuki;, Assignee: Daikin Industries, Ltd. (Osaka, JP) |
Procedure and device for facilitating audiovisual observation of a distant object
We claim: 1. Device for audiovisual observation of a distant object, said device comprising: optical means for viewing the object, said optical means including focus control means for adjusting the fo... Read More
Inventors: Alasaarela, Esko; Adolfsen, Pekka; Rahkonen, Timo;, Assignee: UTK Uuden Teknologian Keskus Oy (FI) |
Automatic noise eliminator for hearing aids
The circuit of the present invention uses a novel design that is adapted for use in a small space and with relatively low power requirements and, at the same time, provides an effective noise eliminat... Read More
Inventors: Heide, Jorgen;, Assignee: Richards Medical Company (Memphis, TN) |
Digital sampling instrument
It is an object of the present invention to provide an improved digital sampling instrument. It is another object of the present invention to provide a digital sampling instrument which has improved f... Read More
Inventors: Rossum, David P.;, Assignee: E-mu Systems, Inc. (Scotts Valley, CA) |
Displaying waveforms
I claim: 1. An apparatus for generating, from a voltage waveform which repeats at a predetermined rate, a video signal suitable to cause a representation of said waveform to be displayed on a raster s... Read More
Inventors: Bruce, Robert A.;, Assignee: Tektronix, Inc. (Beaverton, OR) |
Numerical control apparatus for grinding machine capable of grinding taper and non-taper portions of workpiece
It is therefore an object of the present invention to provide an improved numerical control apparatus wherein taper and non-taper portions of a workpiece are efficiently ground with high accuracy and ... Read More
Inventors: Akabane, Hitoshi; Ohta, Norio;, Assignee: Toyoda Koki Kabushiki Kaisha (Kariya, JP) |
Method of predicting volcanic eruptions
The object of this invention is to provide a method which is capable of predicting volcanic eruptions with high reliability using predictive data collected by a simpler method than those used in the c... Read More
Inventors: Takahashi, Kozo; Fujinawa, Yukio;, Assignee: Communications Research Laboratory, Ministry of Posts & (Tokyo, JP); National Research Institute for Earth Science & Disaster Prevention, (Tsukuba, JP) |
Circuit arrangement for the evaluation of a signal produced by a semiconductor gas sensor
We claim: 1. A gas-sensing system for controlling an air-recirculation valve in a motor vehicle having an interior to which air from outside can be supplied or in which air can be recirculated in acco... Read More
Inventors: Holter, Heinz; Rump, Hanns; Vietze, Helmut;, Assignee: Eftag-Entstaubungs- und Fordertechnik AG (Biel, CH) |
Two level threshold circuit
OF A PREFERRED EMBODIMENT Referring first to FIG. 1 there is shown a typical system in which the circuit of the instant invention may be utilized. An FM-CW radar 10 of the type described in U.S. Pat.... Read More
Inventors: Risko, John J.;, Assignee: RCA Corporation (New York, NY) |
Arrangement for combining data symbols in accordance with a predetermined weighting function
In accordance with this invention the amplitude of data symbols are regulated in accordance with a segment of a predetermined weighting function and continuations in time of these original data symbol... Read More
Inventors: Kustka, George J.;, Assignee: Bell Telephone Laboratories, Incorporated (Murray Hill, NJ) |
Frequency response adjusting device
The present invention includes a device for adjusting a circuitry of a hearing aid to a desired frequency response. The device includes a module that is releasably secured substantially within a batte... Read More
Inventors: Geraci, Michael P.; Hagen, Donald R.; Sundquist, Arman E.;, Assignee: Resistance Technology, Inc. (Arden Hills, MN) |
Active control of aircraft engine inlet noise using compact sound sources and distributed error sensors
It is therefore an object of the present invention to provide an active noise control system for the effective control of aircraft engine inlet noise. It is another object of the invention to provide ... Read More
Inventors: Burdisso, Ricardo; Fuller, Chris R.; O'Brien, Walter F.; Thomas, Russell H.; Dungan, Mary E.;, Assignee: Virginia Polytechnic Institute and State University (Blacksburg, VA); Virginia Tech Intellectual Properties (Blacksburg, VA); The Center for Innovative Technology (Herndon, VA) |
Code conversion arrangements for addresses to faulty memory locations
According to one aspect of the invention, a digital code conversion arrangement comprises: at least two memories, each with a plurality of storage locations; means for addressing the memories with res... Read More
Inventors: Bailey, Nigel Ronald Hassall;, Assignee: International Computers Limited (Stevenage, EN) |
Isotope selective excitation and separation method and apparatus utilizing circularly polarized pulsed radiation
What is claimed is: 1. A method for selectively populating high-lying excited states of atoms or molecules comprising energizing said atoms or molecules with a first circularly polarized pulsed radiat... Read More
Inventors: Ducas, Theodore W.;, Assignee: Massachusetts Institute of Technology (Cambridge, MA) |
Copolymers of ethylene, process for producing them and their use
What we claim is: 1. A method of coating a material comprising applying a copolymer consisting essentially of (a) a first comonomer comprising 70-90 parts by weight of ethylene per 100 parts by weight... Read More
Inventors: Birnkraut, Hans-Walter; Kluy, Werner;, Assignee: Ruhrchemie Aktiengesellschaft (Oberhausen, DE) |
Special trawl net for collecting floating products
What is claimed is: 1. A special trawl type net, adapted for collecting floating products dispersed throughout the surface of a body of water, such as hydrocarbon agglomerates resulting from the actio... Read More
Inventors: Bocard, Christian; Lemesre, Maurice;, Assignee: Institut Francais du Petrole (Rueil-Malmaison, FR); Societe Anonyme Cousin Freres (Wervicq-Sud, FR) |
Electrical connector assembly
In accordance with the electrical connector assembly of the present invention, the above-described and other disadvantages of the prior art are overcome by mounting a contact retention clip into an in... Read More
Inventors: Selvin, Gerald Joseph; Oliver, Leland Wayne; Yamamoto, Stephen Kazuo; Hogan, Clarence Vaughn;, Assignee: International Telephone and Telegraph Corporation (New York, NY) |
Method for making probe covers for electronic thermometers
What is claimed is: 1. A method for forming an electronic thermometer probe cover comprising: providing a closed, metal tip member having a radially extending flange; providing a thermoplastic tube; p... Read More
Inventors: Turner, Robert B.;, Assignee: Johnson & Johnson (New Brunswick, NJ) |
Process for peeling protective film off a thin article
What is claimed is: 1. Process for peeling a protective adhesive film stuck to substantially the entire surface of one side of a thin article such as a silicon wafer, comprising: (a) feeding a web of ... Read More
Inventors: Ametani, Minoru;, Assignee: Nitto Electric Industrial Co., Ltd. (Osaka, JP) |
Wideband radar system utilizing adaptive interference canceler
A wideband radar apparatus practicing the present invention offers improved interference suppression capability over that provided by the prior art without expansion of the number of adaptive channels... Read More
Inventors: Lee, Henry E.; Mims, James H.;, Assignee: Westinghouse Electric Corp. (Pittsburgh, PA) |
Electric water warming system
An object of this invention is to eliminate the defects and drawbacks encountered in the prior art described above and to provide an electric water warming system having a simple structure and being c... Read More
Inventors: Nagashima, Seiko; Serizawa, Takanobu;, Assignee: Kabushiki Kaisha Toshiba (Kawasaki, JP) |
Capacitive displacement measuring device with T-shaped scale coatings
It is, therefore, the object of the present invention to provide a capacitive length and/or angle measuring device of the initially mentioned kind which avoids the above-mentioned disadvantages and ma... Read More
Inventors: Klingler, Otto; Gruhler, Siegfried; Rivinius, Helmut;, Assignee: Mauser-Werke Oberndorf GmbH (DE) |
Modular waveform generator for plasma display panels
I claim: 1. An AC plasma panel system, comprising: a plasma panel driver circuit; and means for providing input waveforms for said driver circuit, said means comprising: means for providing waveforms ... Read More
Inventors: Marentic, Michael J.; Manseau, Daniel A.;, Assignee: Interstate Electronics Corp. (Anaheim, CA) |
Application program memory management system
FIG. 1A, which is not drawn to scale, illustrates the major components of an application program intended for use in a computer system with limited available main memory capacity. As shown in FIG. 1B... Read More
Inventors: Bennett, John G.; Hejlsberg, Anders; Kukol, Peter;, Assignee: Borland International, Inc. (Scotts Valley, CA) |
Phase shifter-equalizer circuit
We claim: 1. Constant complitude phase-shifter equalizer circuit including an input terminal, coupled to an input node, and fed by an input current signal generator and an output node coupled to an ou... Read More
Inventors: Testi, Termano; Merli, Gabriele;, Assignee: GTE Telecomunicazioni, S.p.A. (Cassina de Pecchi, IT) |
Adaptive phase-jitter tracker
The illustrative embodiment of the invention is presented in the context of a quadrature-amplitude modulated (QAM) digital data transmission signal suitable for high-speed telephone voiceband data tr... Read More
Inventors: Gitlin, Richard D.;, Assignee: Bell Telephone Laboratories, Incorporated (Murray Hill, NJ) |
Digital transmitter
It is an object of this invention to provide a digital transmitter providing a signal format for use with power distribution networks. The apparatus according to the invention is for transmitting, in ... Read More
Inventors: Rosanes, A.;, Assignee: Hazeltine Corporation (Commack, NY) |
Audio Signal Processing 
