On-line, limited mode, built-in fault detection/isolation system for state machines and combinational logic
In accordance with the present invention, there is provided a new and improved methodology for the testing of digital circuitry (state machines and combinational logic) that is both built-in and conti... Read More
Inventors: Dickey, John A.;, Assignee: Harris Corporation (Melbourne, FL) |
Multiplexed dual tone multi-frequency encoding/decoding system for remote control applications
Therefore, it is an object of this invention to provide an enhanced DTMF encoding system which will allow a plurality of signal activating switches to be activated simultaneously and to provide a corr... Read More
Inventors: Nassar, Dale;, Assignee: |
Hearing aid
Generally speaking, in accordance with the instant invention, a hearing aid formed of field-effect MOS transistors is provided. The hearing aid includes a first transducer for producing signals repres... Read More
Inventors: Komatsu, Hidetoshi; Tezuka, Mutsuto; Morozumi, Shinji;, Assignee: Kabushiki Kaisha Suwa Seikosha (Tokyo, JA) |
Manufacturing miniature hearing aid having a multi-layer circuit arrangement
It is the object of the present invention to provide a hearing aid with a multilayer circuit arrangement, which allows for mounting electrical components in an especially space-saving manner, and addi... Read More
Inventors: Buttner, Gerhard;, Assignee: Siemens Aktiengesellschaft (Berlin and Munich, DE) |
Signal processor for and an auditory prosthesis having spectral to temporal transformation
The present invention operates on the principle that individual nerve cells within the auditory central nervous system responds only to appropriate periodicities, i.e., only those periodicities close ... Read More
Inventors: van den Honert, Christopher;, Assignee: Minnesota Mining and Manufacturing Company (St. Paul, MN) |
Ear-mounted alarm clock
These objects and others are accomplished by the invention disclosed herein which is directed to a body-mounted alarm device adapted to alert a user to a preset time. The device comprises an earpiece ... Read More
Inventors: Grooms, Reginald M.;, Assignee: |
System and method for data security
The present invention relates to a system and method for substantially reducing accidental disclosure of confidential information by alternatively displaying video data frames with video flash flames.... Read More
Inventors: McManis, Charles E.;, Assignee: Sun Microsystems, Inc. (Mountain View, CA) |
Marine seismic signal processor with D.C. offset compensation method
The above-noted and other drawbacks of the related art are overcome by providing a method and apparatus for processing analog signals which features the capability of simultaneously sampling all chann... Read More
Inventors: Woods, Theodore E.;, Assignee: Syntrak, Inc. (Houston, TX) |
Noise reduction device in an electroacoustic system
What is claimed is: 1. A noise reduction device for an electroacoustic recording and reproducing system comprising at least one correction circuit interposed in the electroacoustic system, said correc... Read More
Inventors: Imreh, Miklos;, Assignee: Elison (Paris, FR) |
***WITHDRAWN PATENT AS PER THE LATEST USPTO WITHDRAWN LIST*** *** NO IMAGES AVAILABLE***
Description:... Read More
Inventors: , Assignee: |
Data ciphering device
What is claimed is: 1. A data ciphering device comprising a number of shift registers (R1, R2, R3, R4), each having a respective plurality of bistables, each performing a variable number of shifts for... Read More
Inventors: Alvarez Alvarez, Manuel J.;, Assignee: Alcatel Standard Electrica S.A. (Madrid, ES) |
Slide number identifiers
I claim: 1. A slide number identifier for elongate multi-number set lottery cards having said sets extending transversely of the card in succession comprising a single blank of plastic having a first ... Read More
Inventors: Gallo, William;, Assignee: |
X-ray apparatus for tomosynthesis
What is claimed is: 1. Apparatus for examining objects comprising: a multiplicity of X-ray sources, each having a comparatively small X-ray focus; a first housing for a flat X-ray registration medium;... Read More
Inventors: Weiss, Hermann; Linde, Rolf; Tiemens, Ulf; Klotz, Erhard;, Assignee: U.S. Philips Corporation (New York, NY) |
Telephone-signal receiver for switching exchanges having centralized logic circuits
What we claim is: 1. In a central office of a telecommunication system serving a multiplicity of incoming lines each constituted by a plurality of channels carrying binary switching criteria represent... Read More
Inventors: Calcagno, Piero; Garetti, Enzo;, Assignee: CSELT - Centro Studi e Laboratori Telecommunicazioni SpA (Turin, IT) |
Power supply system including ringing voltage reset under low input voltage conditions
According to the present invention, a voltage detection circuit is provided in conjunction with a power supply system for generating ringing voltage signals in an SIU, or other remote telecommunicatio... Read More
Inventors: Bushue, Mike; Cartier, Steve; Lindahl, Craig A.; Hurst, David;, Assignee: Raynet Corporation (Menlo Park, CA) |
Image forming apparatus
Accordingly, it is a general object of the present invention to provide an image forming apparatus which eliminates the disadvantages mentioned above. It is also an object of the present invention to ... Read More
Inventors: Furuichi, Katsushi; Yokomizo, Yoshikazu; Honma, Toshio; Murakami, Katsumi;, Assignee: Canon Kabushiki Kaisha (Tokyo, JP) |
Driver circuit for use in an output buffer
In carrying out the above and other objects of the invention in one form, there is provided a high speed driver circuit having inputs for receiving a clocking signal, a precharge signal, and an enable... Read More
Inventors: Schriber, Gene A.;, Assignee: Motorola, Inc. (Schaumburg, IL) |
Linear motor
In accordance with the invention, a linear motor is adapted for use to accurately control linear movement of a computer disk read/write transducer or the like where stray magnetic flux must be kept to... Read More
Inventors: Carbonneau, James T.; Stahel, Paul;, Assignee: Carbonneau Industries, Inc. (Grand Rapids, MI) |
Electronic ring trip circuit
The present invention provides an electronic ring trip circuit for telephone systems. The circuit as shown responds to a wide range of line conditions by providing a filter for ringing current from 16... Read More
Inventors: Holmes, Phillip L.; Cinkus, Frank; Green, John Hugh;, Assignee: International Telephone and Telegraph Corporation (New York, NY) |
Method for preparing triogranophosphines
OF THE INVENTION The organomagnesium halide, RMgX, which is reacted with a phosphorus trihalide to form the corresponding triorganophosphine can be prepared by reacting an organic halide with magnesi... Read More
Inventors: Chopdekar, Vilas M.; Davis, William R.;, Assignee: M&T Chemicals Inc. (Greenwich, CT) |
Method of recognizing speech pauses
What is claimed is: 1. Method for generating a speech pause signal indicating a speech pause in an analog speech signal having noise signals superimposed thereon, comprising the steps of: generating a... Read More
Inventors: Selbach, Bernd; Vary, Peter;, Assignee: U.S. Philips Corporation (New York, NY) |
Spectrograph apparatus for analyzing and displaying speech signals
I claim 1. In a frequency spectrum analyzer having means for repetitively providing a plurality of successive signals, each corresponding to the energy in a different frequency range of a successive f... Read More
Inventors: Stewart, Leslie C.;, Assignee: Center for Communications Research, Inc. (Rochester, NY) |
Secam color television receivers employing tunable notch filter in luminance channel
1. A colour television receiver for operating in a system where the colour television signal comprises a luminance signal and a subcarrier which is alternately frequency modulated by first and second ... Read More
Inventors: Favreau, Michel;, Assignee: Thomson-CSF (Paris, FR) |
Electrode for implantation into the cochlea (II)
The present invention aims at avoiding the drawbacks associated with the prior art electrode. Accordingly, the present invention provides an electrode having two conditions of curvature, the one of wh... Read More
Inventors: Hansen, Carl C.; Lauridsen, Ole M.;, Assignee: |
TTL Compatible LED driver circuit
I claim: 1. A circuit adapted for high frequency pulsed energization of a light emitting diode (LED) such as may be coupled to transmit light into an optical fiber providing a light transmission link ... Read More
Inventors: Dirksen, Jerome P.;, Assignee: Minnesota Mining and Manufacturing Company (Saint Paul, MN) |
Automatic frequency control circuitry
Therefore, it is a primary object of this invention to provide an improved AFC arrangement which is operative over a wide band of frequencies and which, when it is indicated that the frequencies of a ... Read More
Inventors: Williamson, James; Crete, Paul G.;, Assignee: Raytheon Company (Lexington, MA) |
Integral cycle, precise zero voltage switch
OF THE PREFERRED EMBODIMENT OF THE INVENTION Referring now more particularly to FIG. 1 there is shown a phototransistor 100 which receives power command information in the form of light pulses genera... Read More
Inventors: Zambre, Bhagvantrao G.;, Assignee: Elma Engineering (Palo Alto, CA) |
Stereo inhibitor for AM stereo receiver
It is an object of the present invention to provide a demodulator for use in an AM stereo receiver, wherein the demodulator includes means for inhibiting the stereophonic mode of operation under certa... Read More
Inventors: Hershberger, David L.;, Assignee: Harris Corporation (Melbourne, FL) |
Electromagnetic interference suppressant assembly
Briefly, according to the invention, a cable assembly which can suppress interference that gets coupled to the cable is disclosed. In one aspect of the present invention the cable assembly includes a ... Read More
Inventors: Ross, Bruce W.; Dzung, John C.; Sanderson, Harold J.;, Assignee: Motorola, Inc. (Schaumburg, IL) |
Tilt adjuster for a speaker support frame
Referring to the drawings, there is seen in FIGS. 1-6 an embodiment 10 of a speaker frame assembly of the present invention. The assembly 10 includes a wall mounted support frame 12, an adaptor body ... Read More
Inventors: Cassity, Terry A.; Unseld, Bill R.; Carrin, Thomas P.;, Assignee: Square D Company (Palatine, IL) |
Audio Signal Processing 
