High voltage integrated driver circuit
Accordingly, it is an object of this invention to provide an improved high voltage driver circuit. It is another object of this invention that the high voltage drive circuit be adapted to both drive a... Read More
Inventors: Hansen, Aage A.; Lane, Ralph D.;, Assignee: International Business Machines Corporation (Armonk, NY) |
Pattern-boundary image generation system and method
What is claimed is: 1. A system for rapidly generating an image of a pattern in successive lines, each line being formed of a plurality of pixels, in which each pixel is represented by a pixel value, ... Read More
Inventors: Koso, Dusan A.;, Assignee: Gerber Scientific Instrument Company, Inc. (South Windsor, CT) |
Search type tuning device
One of the objects of the present invention is therefore to provide a search type tuning device which may substantially overcome the undesirable effects encountered in the conventional search type tun... Read More
Inventors: Sakamoto, Yoichi;, Assignee: Matsushita Electric Industrial Co., Ltd. (JA) |
Search circuit for a radio receiver
What we claim as new and desire to secure by Letters Patent of the United States is: 1. An improved search circuit for a radio receiver having switchable local oscillator means connected to a mixer to... Read More
Inventors: Harris, Raymond W.; Sherman, Jr., Ralph R.;, Assignee: General Electric Company (Lynchburg, VA) |
VHF-UHF switching mechanism of a television receiver
What we claim is: 1. A VHF-UHF switching mechanism for a television receiver having a VHF tuner including a tuner shaft therein, comprising a rotatably supported main operation shaft; a first spur gea... Read More
Inventors: Ohigashi, Tugio; Ariga, Junichi;, Assignee: Matsushita Electric Industrial Co., Ltd. (Osaka, JA) |
High speed dynamic allocator for various length time slots
It is therefore an object of the present invention to provide a high speed dynamic allocator of variable length time slots which solves controller bottleneck problems in time critical systems. It is a... Read More
Inventors: Georgiou, Christos J.;, Assignee: International Business Machines Corporation (Armonk, NY) |
Color display with automatic color control device
In color displays of the type which display various images on a display surface by radiation order signals of three prime color signals of red, green and blue signals, the present invention is directe... Read More
Inventors: Kanema, Seiichi; Tsujioka, Shigeo;, Assignee: Hitachi, Ltd. (Tokyo, JP) |
Message identification and data entry apparatus
The present invention provides a means of examining a first sequence of data intended to indentify and accept subsequent data for at least one of a plurality of receivers (preferably carried aboard a ... Read More
Inventors: Philippides, Constantinos;, Assignee: The United States of America as represented by the Secretary of the Navy (Washington, DC) |
Data length detection device for detecting length of frame data defined by flags
One object of the present invention is to shorten time required for detecting the data length of applied data in a data length detection device. Another object of the present invention is to shorten t... Read More
Inventors: Nakabayashi, Takeo; Kondoh, Harufusa;, Assignee: Mitsubishi Denki Kabushiki Kaisha (Tokyo, JP) |
Magnetizing device for permanent magnet rings that are bipolar on the end faces or multipolar on the lateral faces
The invention is based on the task of creating a magnetizing device that permits magnetizing of one-part magnet rings on their end face with two concentric poles or tubular multipolar permanent magnet... Read More
Inventors: Steingroever, Erich; Steingroever, Dietrich;, Assignee: Magnet-Physik Dr. Steingroever GmbH (DE) |
Method for transmitting information, in which the signals are coded as amplitudes of the half-waves or periods of a sinusoidal alternating current
I claim: 1. A method for pulse amplitude modulation as a means for transmitting information, comprising the steps of: generating unipolar analog values from a signal to be transmitted and sampling the... Read More
Inventors: Dirr, Josef;, Assignee: |
Echo cancellation
I claim: 1. Echo cancellation apparatus for removing, from a locally received data communication signal, an echo signal component having a changing phase difference relative to the phase of a locally ... Read More
Inventors: Ling, Fuyun;, Assignee: Codex Corporation (Mansfield, MA) |
Equalizer for ISDN-U interface
According to the present invention, a receiver for a digital data transmission system comprises sampling means having an input for receiving digital data signals from a subscriber loop, said sampling ... Read More
Inventors: Aly, Sami A. H.; Sayar, Babak;, Assignee: Northern Telecom Limited (Montreal, CA) |
Apparatus and method for converting a frequency division multiplex to a time division multiplex
It is an object of the present invention to overcome the need for such separate demodulating circuits. Accordingly there is provided apparatus for converting frequency division multiplexing into time ... Read More
Inventors: Smith, David W.; Hill, Godfrey R.; Lobbett, Roy A.;, Assignee: British Telecommunications public limited company (London, GB2) |
Sampling clock correction circuit
Accordingly, it is an object of the invention to provide an improved technique for properly adjusting the sampling point of a sampling clock employed in a data modem. It is a further object of the inv... Read More
Inventors: Chiu, Ran F.; Parrish, Henry H.; Kromer, III, Philip F.; Kao, Ming L.;, Assignee: Racal-Milgo, Inc. (Miami, FL) |
Coupling device for coupling a rontgen tube-holder to the frame of an image receiver in a tomograph
To obviate these drawbacks and in accordance with the main characteristic of the invention, the releasable coupling device of the invention is a permanent electromagnetic coupling. Thus, the operator ... Read More
Inventors: Munch, Joseph;, Assignee: Thomson-CSF (Paris, FR) |
Differential phase shift keyed receiver
The prior art circuit of FIG. 1 illustrates differential phase detection of a received 4-phase signal having phase changes of 0.degree., .+-.90.degree., and 180.degree.. The received signal enters th... Read More
Inventors: Iapicco, Jeffrey A.;, Assignee: Bell Telephone Laboratories, Incorporated (Murray Hill, NJ) |
Transistor circuit with base-current compensation
It is an object of the invention to provide an emitter-coupled transistor pair employing base-current compesantion wihout the use of current mirrors. According to the invention a transistor circuit of... Read More
Inventors: Van Lammeren, Johannes P. M.; Stuivenwold, Armand M.; Van Elk, Henricus T. P. J.;, Assignee: U.S. Philips Corporation (New York, NY) |
Digital pulse width doubler
What is claimed is: 1. A pulse-width doubler, comprising in combination: means, having a first input, a second input, and an output, for producing a first signal at the output thereof in response to a... Read More
Inventors: Sherman, Walter R.;, Assignee: The United States of America as represented by the Secretary of the Navy (Washington, DC) |
Digital signal processor
An object of this invention is to increase the amount of information obtained from digital signals with minimum increase in equipment costs. According to this invention a digital signal processor for ... Read More
Inventors: McWhirter, John G.; Pike, Edward R.; Watson, David J.;, Assignee: Secretary of State (London, GB2) |
Event reporting using a two-wire non-blocking bus structure
The present invention provides method and apparatus for non-blocking event reporting from a plurality of discrete event reporting units to a monitoring circuit by means of a two-wire common bus struct... Read More
Inventors: Pfeiffer, Greg C.;, Assignee: ADC Telecommunications, Inc. (Minneapolis, MN) |
Line delay compensation for digital transmission systems utilizing low power line drivers
The present invention relates to a data transmission system including a central subsystem coupled by transmission lines of different lengths to a plurality of remote subsystems and means for transmitt... Read More
Inventors: Cooperman, Michael; Sieber, Richard W.;, Assignee: GTE Laboratories Incorporated (Waltham, MA) |
Variable increment phase locked loop circuit
The present invention provides an improved digital phase locked loop circuit which is especially adapted for use in high speed communication systems wherein a data input signal is maintained in synchr... Read More
Inventors: Juliusburger, Hans Yohanan; Wortzman, Donald;, Assignee: International Business Machines Corporation (Armonk, NY) |
Pulse width decoder
The principal object of the invention is to provide a novel, simplified and improved system for furnishing a digital indication of any one of a wide range of applied input signal pulse widths. Another... Read More
Inventors: Odom, James T.;, Assignee: Avco Corporation (Huntsville, AL) |
Variable frequency, fixed amplitude digital sweep generator
In accordance with this invention, a variable frequency, fixed amplitude digital sweep generator that is ideally suited for use with cathode ray tube based instruments for the troubleshooting, diagnos... Read More
Inventors: Bailey, Bill E.;, Assignee: Pacific Northwest Eectronics (Seattle, WA) |
Solid-state color imaging camera
OF THE INVENTION Now, this invention will be described in detail by way of various exemplary embodiments. FIG. 5 shows the optical positioning of image sensors or imagers as one embodiment of this in... Read More
Inventors: Takemoto, Iwao; Nagahara, Shusaku; Fujita, Tsutomu; Sato, Kazuo;, Assignee: Hitachi, Ltd. (Tokyo, JP); Hitachi Denshi Kabushiki Kaisha (Tokyo, JP) |
Electrode support mechanism and method
We claim: 1. An electrode support for an arc-type furnace, comprising a vertical support post, a first support arm fixed to the post and cantilevered therefrom with its free end carrying electrode-eng... Read More
Inventors: Dunn, Charles S.; Seng, Stephen;, Assignee: Owens-Corning Fiberglas Corporation (Toledo, OH) |
Telecommunications apparatus and method
It is an object of the invention to provide a method of operating in the ATM while accommodating significant voice traffic both efficiently and without undue transport delay. Accordingly the invention... Read More
Inventors: Irwin, George Frank;, Assignee: Northern Telecom Limited (Montreal, CA) |
ATM relay system capable of carrying out relay connection on ATM cells as it is
What is claimed is: 1. A private branch exchange system comprising a switching system and an asynchronous transfer mode (ATM) multiplexing unit connected to an ATM network, said switching system inclu... Read More
Inventors: Hokari, Makoto;, Assignee: NEC Corporation (Tokyo, JP) |
Text processing arrangement
The primary object of the present invention is the production of a text processing arrangement which may employ a typewriter mechanism which, on the one hand, can be operated in the same manner as a s... Read More
Inventors: Hildinger, Eugen;, Assignee: Siemens Aktiengesellschaft (Berlin & Munich, DE1) |
Multiplexer-related 
