Channel allocation for co-located systems based on interferring channel groups
According to a first aspect, this invention provides a mobile communication system including: a first group of base stations belonging to a first mobile communication system; the service area of the f... Read More
Inventors: Fujii, Teruya; Hamada, Katsunori; Yoshimi, Masaaki;, Assignee: NTT Mobile Communications Network Inc (Tokyo, JP) |
Register for and method of providing contact information for a communications unit identified by a uniform resource name
OF A PREFERRED EMBODIMENT In overview form the present disclosure concerns communications systems that provide service to communications units operating therein. More particularly various inventive c... Read More
Inventors: Goldberg, Steven J.; Philips, W. Garland; Webb, Janiece S.;, Assignee: Motorola, Inc. (Schaumburg, IL) |
System, method and apparatus for secure transmission of confidential information
The present invention is directed to a system, method and apparatus for establishing a secure wireless radio communications link between two devices that minimizes the exposure of sensitive informatio... Read More
Inventors: Bjorndahl, Per;, Assignee: Telefonaktiebolaget L M Ericsson (Stockholm, SE) |
Method and apparatus for initializing ISDN adapter cards in a workstation operating as an ISDN primary gateway
This problem is solved by the method and apparatus according to the present invention which comprises a workstation in which a set of ISDN adapter cards and X.25 cards are installed, the ISDN cards be... Read More
Inventors: Avargues, Didier; Clara, Jean-Louis; Le Pennec, Jean-Francois; Michel, Patrick; Sicsic, Patrick;, Assignee: International Business Machines Corporation (Armonk, NY) |
Duplex signal multiplexing system
The present invention was made in view of the above-mentioned state of art and has an object to provide a novel duplex signal multiplexing system which is capable of solving the potential problems of ... Read More
Inventors: Toyohara, Takehiko;, Assignee: NEC Corporation (Tokyo, JP) |
Operation of low-cost, fixed output power radio in fixed gain mode
OF THE PRESENTLY PREFERRED EMBODIMENT A block diagram of the system used in the preferred embodiment of the invention is shown in FIG. 1. The figure illustrates a typical multi-carrier, remote site c... Read More
Inventors: Soleimani, Mohammad; Lowe, D. Ray; Montgomery, Guy; Eck, Henry; Malcolm, Eryx; Hernandez, Royce; Jackson, Tom; Lundstedt, Jack;, Assignee: Hughes Electronics (Los Angeles, CA) |
AFC frequency synchronization network
The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows: 1. A method of synchronizing the operating frequency of a digital information receiving ... Read More
Inventors: Beale, Terrance Ralph;, Assignee: Delco Electronics Corporation (Kokomo, IN) |
Crosstalk canceller system and method
Briefly described, the invention is a crosstalk canceller (CC) system and method for a transceiver bank for reducing crosstalk between first and second communications channels having overlapping frequ... Read More
Inventors: Bremer, Gordon;, Assignee: Paradyne Corporation (Largo, FL) |
Device and method for frame synchronization in a multi-level trellis coding system
OF A PREFERRED EMBODIMENT In this invention parity check bits which are present in a multi-level trellis coded communication system are utilized to detect and correct loss of symbol frame synchroniza... Read More
Inventors: Eyuboglu, M. Vedat;, Assignee: Motorola, Inc. (Schaumburg, IL) |
Code expansion generator
I claim: 1. A method of generating a second pair of multi-bit digital codes from a first pair of multi-bit digital codes comprising the steps of: generating first and second multi-bit digital codes ha... Read More
Inventors: Gutleber, Frank S.;, Assignee: |
Method of exercising a distributed restoration process in an operational telecommunications network
What is claimed is: 1. A method of practicing an exercise restoration process in a telecommunications network provisioned with a distributed restoration scheme and having a plurality of interconnected... Read More
Inventors: Shah, Jasvantrai C.; Allen, John David; Alagar, Sridhar; McGlade, Bryan; Badt, Hal;, Assignee: MCI WorldCom, Inc. (Washington, DC) |
Random access protocol for multi-media networks
A method for randomly accessing a multi-media communications network defined by a common signal path and a plurality of voice and data terminals coupled to the common signal path for communication the... Read More
Inventors: Tran, Hai V.;, Assignee: The Mitre Corporation (Bedford, MA) |
Information processing apparatus and method for combining different media to have coinciding reproduction times
The present invention relates to an information processing apparatus and method which easily generates automatically or at an editor's will and without any manual editing work, a multimedia representa... Read More
Inventors: Nobori, Kunio; Kado, Yoshiyasu; Nakagawa, Masamichi;, Assignee: Matsushita Electric Industrial Co., Ltd. (Osaka, JP) |
Chip carrier with embedded leads and chip package using same
We claim: 1. A chip package, comprising: an insulative flat body having a predetermined thickness and a prescribed shape; a plurality of vertically and radially-extending leads embedded in a plurality... Read More
Inventors: Kim, Sun-Dong; Seol, Byong-Su;, Assignee: LG Semicon Co., Ltd. (Cheongju, KR) |
Digital phase-locked loop for data separation
OF THE PREFERRED EMBODIMENT A digital phase-locked loop circuit, as in the embodiment illustrated in FIG. 1, receives an encoded input data stream RDATA, such as from a floppy disk at the input of th... Read More
Inventors: Lu, Chau-Her;, Assignee: Holtek Microelectronics, Inc. (Hsin-Chu, TW) |
Phase-noise compensated digital communication receiver and method therefor
Accordingly, it is an advantage of the present invention that an improved phase-noise compensated digital communication receiver and method are provided. Another advantage is that the influence of pha... Read More
Inventors: Cochran, Bruce A.;, Assignee: Sicom, Inc. (Phoenix, AZ) |
Method for reception of multicarrier signals and related apparatus
What is claimed is: 1. A method for the reception of multicarrier signals which are arranged in frames with a synchronisation signal and at least one reference symbol per frame, comprising the steps o... Read More
Inventors: Klank, Otto; Laabs, Juergen; Klausberger, Wolfgang;, Assignee: Deutsche Thomson-Brandt GmbH (Villingen-Schwenningen, DE) |
Bilevel node identifiers in control area network (CAN) protocol
We claim: 1. A method of communicating between various nodes of a multi-processor control system which has a plurality of class one nodes, each of which must communicate with other ones of said class ... Read More
Inventors: Spielbauer, Hans-Kilian Josef; Hnida, Martin Georg Walter;, Assignee: Otis Elevator Company (Farmington, CT) |
Apparatus for performing frequency conversion in a communication system
OF A PREFERRED EMBODIMENT An efficient apparatus for performing frequency conversion from a final IF frequency to a baseband frequency is described in accordance with the invention. A counter generat... Read More
Inventors: Stewart, Kenneth A.; Love, Robert T.;, Assignee: Motorola, Inc. (Schaumburg, IL) |
Transmission method, transmission apparatus and reception method and reception apparatus
In view of such aspects, it is an object of the present invention to provide a communication method and a communication apparatus which can suppress interference of communication of adjacent cells to ... Read More
Inventors: Suzuki, Mitsuhiro;, Assignee: Sony Corporation (Tokyo, JP) |
Method and apparatus for transmission of digital data
The present invention provides a reduced complexity Viterbi type decoding method and receiver by discarding paths whose metrics differ from a smallest metric by more than a constant related to the min... Read More
Inventors: Kratochwil, Konrad;, Assignee: Texas Instruments Incorporated (Dallas, TX) |
Method and apparatus for processing multi-protocol communications
OF THE PREFERRED EMBODIMENT Generally, the present invention provides a method and apparatus for processing multi-protocol communications via a single communication system. (Note that the single comm... Read More
Inventors: Brody, George; Cheng, Zye K.;, Assignee: Nortel Networks Limited (Montreal, CA) |
Cathode ray tube mounting means including lighting means and camera-connecting means
OF THE INVENTION Turning now to FIGS. 1-3, a cathode ray tube 10 is preferably of the type disclosed in U.S. Pat. No. 3,207,936, but it can be any type of tube that will operate as required. Tube 10 ... Read More
Inventors: Veenendaal, Cornelis Teunis;, Assignee: Tektronix, Inc. (Beaverton, OR) |
Digital frequency receiver
The invention provides a digital frequency receiver connected to a processor for the recognition of multifrequency code signals received in signalling time slots and transmitted to the receiver in dig... Read More
Inventors: Delpit, Philippe; Duplessis, Philippe; Renaudin, Yves;, Assignee: Compagnie Industrielle Des Telecommunications Cit-Alcatel (Paris, FR) |
Alphanumeric keyboard having identification capability
The present invention relates to an alphanumeric keyboard having novel structure for supplying its associated video display terminal with information descriptive of the keyboard. A preferred embodimen... Read More
Inventors: Wilson, Allen K.; Rehhausser, Frederick V.;, Assignee: Data General Corporation (Westboro, MA) |
Programmable digital multiple event generator
We claim: 1. A circuit for generating a plurality of digital events each on a separate signal line whose timing relative to each other and an initialization signal is programmable, comprising: means f... Read More
Inventors: Hagen, Michael S.; Taylor, Keith A.; Pollock, Ira G.;, Assignee: Tektronix, Inc. (Beaverton, OR) |
Lasers
The present invention is directed to a modified configuration of reflector which can be employed to provide improved laser performance by removal of out-of-band spontaneous emission from the output of... Read More
Inventors: Byron, Kevin Christopher; Sugden, Kate;, Assignee: Northern Telecom Limited (Montreal, CA) |
ATM cell synchronous system
It is an object of the present invention to solve the problems with the prior art and to provide an ATM cell synchronous system and an ATM cell synchronous circuit which is capable of ensuring a low s... Read More
Inventors: Yanagisawa, Shigeki;, Assignee: Toyo Communication Equipment Co., Ltd. (Kanagawa, JP) |
MODEM communication system having training means and method for training same
An object of the present invention is to provide an improved multipoint type MODEM communication system having a training means and a reduced training time. Another object of the present invention is ... Read More
Inventors: Kaku, Takashi; Arai, Yasuhiro;, Assignee: Fujitsu Limited (Kawasaki, JP) |
Concentric gravel pack with crossover tool and method of gravel packing
The present apparatus for packing gravel within a well isolates the zone to be gravel packed from well fluid normally used to contain the well pressure. The apparatus utilizes two concentric tubing st... Read More
Inventors: Richard, Charles A.; Barbee, John Philip;, Assignee: Baker International Corporation (Orange, CA) |
Cell Phones 
