Well management system
Accordingly, there is disclosed herein a system and method for managing a new well or recompleting an existing well. In one embodiment, the well management system includes a sensor and a control dispo... Read More
Inventors: Vidrine, William L.; Feechan, Michael;, Assignee: Halliburton Energy Services, Inc. (Houston, TX) |
Lamp system take control dimming circuit
A preferred embodiment of the invention comprises equipping each take control station with a gated semiconductor device connected to a constant current generator. A variable electronic resistor connec... Read More
Inventors: Nuver, Eric L. H.;, Assignee: Esquire, Inc. (New York, NY) |
Optocoupler dimmer circuit for high intensity, gaseous discharge lamp
The present invention employs an optically isolated driver means, preferably in the form of an optocoupler, for providing separated timing and trigger actuation functions to a gated bypass means conne... Read More
Inventors: Nuver, Eric L. H.;, Assignee: Esquire, Inc. (New York, NY) |
Differential phase shift keying receiver
The receiver according to the present invention efficiently rejects noise and can be readily integrated. This receiver demodulates differential phase shift keying data wherein the data has bit values ... Read More
Inventors: Stamm, Thomas A.;, Assignee: Honeywell Inc. (Minneapolis, MN) |
Method of detecting phase pulse signals from an AC distribution line
It is therefore an object of the present invention to provide a method of detecting the levels of phase pulse signals which can efficiently prevent the occurrence of ghost pulses due to subsequent osc... Read More
Inventors: Arai, Yukio; Takagi, Masatoshi; Koyama, Akihiko;, Assignee: Osaki Electric Co., Ltd. (Tokyo, JP) |
System for synchronizing signals on a two-wire line
We claim: 1. A two conductor transmission system for transmitting power, synchronization pulses, and data between two stations, the system comprising a first station linked to a second station by only... Read More
Inventors: Trett, John; Bradbeer, Peter F.;, Assignee: Formula Systems Limited (Eynsham, GB) |
Integrated dual charge pump power supply and RS-232 transmitter/receiver
We claim: 1. An integrated single-chip voltage supply comprising: a means adapted to be connected to a supply voltage for charging a capacitor approximately to a supply voltage; a means for coupling s... Read More
Inventors: Bingham, David; Allen, Charles M.;, Assignee: Maxim Integrated Products (Sunnyvale, CA) |
Anti-disaster monitoring system
In view of the aforementioned problems of the conventional systems, an object of the present invention is to provide an anti-disaster monitoring system which is capable of receiving terminal informati... Read More
Inventors: Kikuchi, Masamichi;, Assignee: Hochiki Kabushiki Kaisha (Tokyo, JP) |
Noise insensitive comparator
It is an object of the present invention to provide an improved comparator circuit which avoids the problems of the prior art. It is an additional object of the present invention to provide a comparat... Read More
Inventors: Mefford, Joseph P.;, Assignee: Harris Corporation (Melbourne, FL) |
Lighting control system dimmer module with plug-in electrical contacts
The present invention is embodied in a dimmer module for a lighting system in which electrical components are efficiently laid out, with minimal wastage of space, and with a reduced need for interconn... Read More
Inventors: Cunningham, David W.; Esakoff, Gregory F.;, Assignee: |
Remote vehicle access featuring high security
OF THE PREFERRED EMBODIMENT The preferred embodiment of the present invention, as illustrated in FIG. 1 in block diagram form, includes a transmitter 10 featuring command inputs 12a, b, c and d, whic... Read More
Inventors: Salter, David A.; Fleissner, Thomas;, Assignee: Rockwell International Corporation (Pittsburgh, PA) |
False triggering prevention circuit
OF THE INVENTION A. General System Description Referring now to the drawing, the pulse extractor circuit, designated as a whole by the reference numeral 10, comprises an input circuit 12, a pulse sha... Read More
Inventors: Francis, Jr., Ralph M.;, Assignee: Milwaukee Resistor Corporation (Milwaukee, WI) |
Sequential two tone detector
It is an object of the invention, therefore, to provide a high security method and means for determining the presence of a two tone command signal. It is a further object of the invention to provide t... Read More
Inventors: Townsend, Greg M.;, Assignee: Motorola, Inc. (Schaumburg, IL) |
Tone signal decoder
It is an object of the present invention to provide a decoder for a receiver device in a remote control device using one tone signal, which device is very simple in circuit construction to avoid malfu... Read More
Inventors: Iwata, Keisuke;, Assignee: Iwata Electric Co., Ltd. (Tokyo, JP) |
Line-gated switching power supply
The present invention relates to an improved power supply which avoids the disadvantages of prior power supplies while affording additional structural and operating advantages. It is a general object ... Read More
Inventors: Schoen, Erich W.; Tice, Lee D.;, Assignee: Pittway Corporation (Aurora, IL) |
Radio frequency seismic gathering system employing an airborne blimp
The seismic gathering system utilizing the present invention includes a central station having a data recording system and transmitters and receivers for communicating with the individually arrayed fi... Read More
Inventors: McDavid, William T.; McKeever, James M.; Imm, Roger A.;, Assignee: Fairfield Industries, Inc. (Houston, TX) |
Silicone polymer-based release coating agents having organic titanates as stabilizers and tapes
I claim: 1. A coating composition suitable for use with an adhesive tape or film which comprises the following ingredients in parts by weight as follows: low release strength silicone-based polymers a... Read More
Inventors: Reusser, Robert E.; Jones, Brenton E.;, Assignee: Phillips Petroleum Company (Bartlesville, OK) |
Protected muldem with independent protective switching of circuits having different data rates
The present invention provides multiplexers, demultiplexers and muldems combining high reliability with acceptance and/or delivery of different data rates. Reliability is provided by standby alternate... Read More
Inventors: Abbott, Ned E.; Keshavan, Hampapur R.; McGuire, Robert J.;, Assignee: Rockwell International Corporation (El Segundo, CA) |
Error correction method
It is a principal object of the present invention to provide an error correcting method in which an error correcting capability is improved by repeatedly executing the correcting process as many times... Read More
Inventors: Sako, Yoichiro; Yamamura, Shinichi; Arai, Masayuki;, Assignee: Sony Corporation (Tokyo, JP) |
High reliability active-standby clock arrangement
One illustrative embodiment of a highly reliable active-standby clock pulse circuit arrangement according to the invention is shown in FIG. 1 in block diagram form. The circuit comprises two clock pu... Read More
Inventors: Gomez, Ernest;, Assignee: Bell Telephone Laboratories, Incorporated (Murray Hill, NJ) |
Redundant clock combiner
Accordingly, it is one object of the present invention to provide a redundant clock combiner device that recovers a clock signal subsequent to the loss of both externally supplied clock signals regard... Read More
Inventors: Liu, Shao H.; Yudichak, Joseph R.;, Assignee: ITT Corporation (New York, NY) |
Stage tracer
The object of this invention is to provide a stage tracer free from the above described drawbacks incidental to the conventional stage tracer. To attain this object, the stage tracer according to this... Read More
Inventors: Wakai, Katsuro;, Assignee: Hitachi, Ltd. (Tokyo, JP) |
Distributed computing network
According to one aspect of the present invention, communication between nodes is accomplished by the use of interface tasks for controlling the operation of each communication port of each transputer ... Read More
Inventors: Johnson, Jr., Harold E.;, Assignee: Advanced Computer Applications, Inc. (Newtown, PA) |
Interface of non-fault tolerant components to fault tolerant system
It is the object of the invention to provide a fault tolerant computer method and system having duplicate computer systems which normally operate simultaneously. The duplication insures that there is ... Read More
Inventors: Bruckert, William F.; Bissett, Thomas D.; Norcross, Mitchell O.; Ward, Kenneth A.;, Assignee: Digital Equipment Corporation (Maynard, MA) |
Shift correction code system for correcting additive errors and synchronization slips
The shift error correction modulation code system is improved in the present invention so as to correct additive errors and (or) synchronization slips as well as correcting shift errors. (A.) Correcti... Read More
Inventors: Howe, Dennis G.; Hilden, Hugh M.; Weldon, Jr., Edward J.;, Assignee: Eastman Kodak Company (Rochester, NY) |
Method and apparatus for preserving the integrity of the error detection/correction word in a code word
It is an objective of the present invention to provide an apparatus and method for changing the error detection/correction check word portion of a code word in accord with certain changes made in the ... Read More
Inventors: Iacoponi, Michael J.;, Assignee: Harris Corporation (Melbourne, FL) |
Fifo buffer system having an error detection and correction device
It is, therefore, a primary object of the invention to provide an improved FIFO buffer system having the capability of effectively detecting and correcting an error which may be present in the buffer ... Read More
Inventors: Park, Yong-Gyu;, Assignee: Daewoo Electronics Co., Ltd. (Seoul, KR) |
Information recording and reproducing apparatus
To achieve the above object, the present invention employs a partial response (PR) method using specialized weighting coefficients in an information recording and reproducing apparatus, such as a magn... Read More
Inventors: Kobayashi, Michio; Nebashi, Satoshi; Shimoda, Tatsuya; Osawa, Hisashi; Okamoto, Yoshihiro;, Assignee: Seiko Epson Corporation (Tokyo, JP) |
Methods and apparatus for implementing run-length limited and maximum transition run codes
The present invention provides improved constraints and techniques for the construction of efficient, high-rate, multi-purpose run-length limited (RLL) and maximum transition run (MTR) block codes. In... Read More
Inventors: de Lind van Wijngaarden, Adriaan J.; Soljanin, Emina;, Assignee: Lucent Technologies Inc. (Murray Hill, NJ) |
Sample rate converter
OF THE PRIMARY EMBODIMENT FIG. 1 shows a first example of a flexible sample rate converter FSRC1 embodied as an up-converter according to the invention having an input 11 and an output O1. This flexi... Read More
Inventors: Van Den Enden, Adrianus Wilhelmus Maria; Suermondt, Rutgerus Elisabertus Eduardus Franciscus; Arends, Marc Victor;, Assignee: Koninklijke Philips Electronics N.V. (Eindhoven, NL) |
Fault Detection 
