SIM card secured subscriber unit
The present invention associates each subscriber unit with a preset and predetermined signature alphanumeric value. The predetermined alphanumeric value is programmed into the memory on a SIM card. T... Read More
Inventors: Miller, Michael Addison; Tooker, James Morris;, Assignee: Motorola, Inc. (Schaumburg, IL) |
Method for allocating resources by anticipated reservation in an integrated service satellite network
Accordingly, a method for allocating resources to earth stations by a central station in a satellite asynchronous time-division telecommunication network, the earth stations receiving bursts of data c... Read More
Inventors: Zein Al Abedeen, Tarif; Maral, Gerard; Seret, Dominique; Tondriaux, Marc;, Assignee: France Telecom (Paris, FR) |
Method and an apparatus for automatically tuning a receiver
In an aspect of the present invention, an automatic tuning method used in an automatic tuning apparatus of a receiver, which supplies a tuning voltage for a desired receiving channel among two or more... Read More
Inventors: Suzuki, Toru; Hashigaya, Atsuhiko;, Assignee: Matsushita Electric Industrial Co., Ltd. (Osaka, JP) |
Method for generating a temporary mobile subscriber identity signal (TMSI) from a permanent mobile station identity signal (TMSI)
I claim: 1. A method of generating a Temporary Mobile Subscriber Identity signal (TMSI) in a telecommunication network comprising a subscriber data base on the basis of a subscriber signal permanently... Read More
Inventors: Pfundstein, Matthias;, Assignee: Standard Elektrik Lorenz Aktiengesellschaft (Stuttgardt, DE) |
Interactive and animated mini-theater
OF THE INVENTION The above described drawing figures illustrate the invention, an animated theatre apparatus comprising a theatre base 10 providing an upwardly facing base surface 20 for use as a the... Read More
Inventors: Wang, Mai;, Assignee: |
Dual pilot phase lock loop for radio frequency transmission
The present invention is directed to the elimination of co-channel interference in a suppressed carrier transmission system through the use of a phase-lock operation with two pilot tones that are tran... Read More
Inventors: Rafal, Marc D.; Burton, Larry W.; Joines, William T.;, Assignee: Avnet, Inc. (New York, NY) |
Information service provider for transmitting multiple rate wireless information
OF THE PREFERRED EMBODIMENT FIG. 1 shows a simplified block diagram of how an information service provider collects information from a variety of sources for transmission to users of various electron... Read More
Inventors: May, Gregory J.;, Assignee: Hewlett-Packard Company (Palo Alto, CA) |
Hierarchical communication network and communication element for a hierarchical communication network
We claim: 1. Hierarchical communication network with a communication element, the communication element comprising at least first and second interfaces (2,3) for establishing connections to a higher h... Read More
Inventors: Ebert, Siegfried; Kasseckert, Rudolf;, Assignee: U.S. Philips Corporation (New York, NY) |
ATM cell assembling and disassembling system and method
It is a general object of the present invention to provide an ATM cell assembling and disassembling system and method in which the above mentioned disadvantages are eliminated. A more specific object ... Read More
Inventors: Nishino, Tetsuo; Eda, Susumu; Hyodo, Ryuji; Oomuro, Katsumi; Sekihata, Osamu; Tanaka, Kenji; Hatta, Hiroyuki; Norizuki, Reiko; Yuhara, Nakaba;, Assignee: Fujitsu Limited (Kawasaki, JP) |
RF-AM transmitter with pulse width modulator
We claim: 1. A radio transmitter for transmitting an RF carrier amplitude modulated by an information signal comprising a pulse width modulator responsive to the information signal for deriving a puls... Read More
Inventors: Hulsey, Gilmer L.; Weaver, Bryan A.;, Assignee: Varian Associates, Inc. (Palo Alto, CA) |
High voltage detection circuit, bell signal detection circuit and non-ringing reception detection circuit
In order to solve the problems discussed above, in a first aspect of the present invention, a high voltage detection circuit that is provided with a voltage input terminal generates a high voltage det... Read More
Inventors: Miyasita, Tokio; Nakamura, Tokuo; Kotaka, Toshihiko;, Assignee: Oki Electric Industry Co., Ltd. (Tokyo, JP) |
Cell site demodulation architecture for a spread spectrum multiple access communication systems
A pipelined demodulation technique for demodulation of multipath spread spectrum communication signals uses a single, integrated demodulation processor servicing a plurality of demodulation element fr... Read More
Inventors: Levin, Jeffrey A.; Werner, David E.; Easton, Kenneth D.;, Assignee: Qualcomm Incorporated (San Diego, CA) |
Signal transmission system
According to the present invention there is provided a transmission system in which a carrier is divided into a plurality of time slots, at least some of which time slots are traffic signal time slots... Read More
Inventors: Richardson, Andrew J.; Mabey, Peter J.;, Assignee: U.S. Philips Corporation (New York, NY) |
TDMA satellite communication system for transmitting serial subsignal data
Accordingly, an object of the present invention is to provide, a TDMA (Time Division Multiple Access) satellite communication system used between stations, including a high-speed main signal line and ... Read More
Inventors: Tanahashi, Katsuhiko;, Assignee: Fujitsu Limited (Kawasaki, JP) |
Desalting method of fuel oil
We claim: 1. A desalting method of a fuel oil comprising mixing the fuel oil and clean water and separating and removing a heavy portion including salt-containing water from said fuel oil which is a l... Read More
Inventors: Fujiwara, Kiyoshi; Nagatomo, Katsuaki; Shibata, Fumio; Nomura, Shoji; Yoshinaga, Shoji;, Assignee: Hitachi, Ltd. (Tokyo, JP) |
Arrangement for enhancing the processing of speech signals in digital speech interpolation equipment
Prior Digital Speech Interpolation (DSI) apparatus is advanced by providing a function which discriminates noise signals from speech signals, and if noise signals are present, then comparing the level... Read More
Inventors: Sayre, III, Clifford L.;, Assignee: Lucent Technologies Inc. (Murray Hill, NJ) |
Highly stable frequency synthesizer loop with feedforward
The highly stable frequency synthesizer loop according to the present invention overcomes the stability problem experienced by the known voltage controlled oscillator (VCO) techniques and is utilized ... Read More
Inventors: McMahill, Daniel R.; Whitehouse, Thomas C.;, Assignee: Scientific-Atlanta, Inc. (Norcross, GA) |
Manchester coder/decoder
OF EMBODIMENTS FIG. 1 shows a diagrammatic view of the coder/decoder of the invention. It is a device 10 with eight inputs/outputs: a clock CLK at the frequency of the radiofrequency signal or RF, tr... Read More
Inventors: Abou Hassan, Salman;, Assignee: France Telecom (Paris, FR); La Poste (Boulogne-Billancourt Cedex, FR) |
Method for servicing a trunkline among data connections having different data rates wherein all data connections are given fair allocation to the trunkline
It is, therefore, an object of the present invention to provide a method according to which the access of data output by a plurality of data terminals to a trunk line common to the data terminals is r... Read More
Inventors: Grabenhorst, Rolf; Schroeder, Eckhard; Niestegge, Gerd;, Assignee: Siemens Aktiengesellschaft (Munich, DE) |
Communication system network
These needs and others are substantially met by the communication network that comprises a processing multiplexer and a plurality of communication systems disclosed herein. Each of the communication s... Read More
Inventors: Maher, John W.;, Assignee: Motorola, Inc. (Schaumburg, IL) |
Method and apparatus for calling a ground station by an aircraft
OF A PREFERRED EMBODIMENT I. COMPOSITION OF CALLING SIGNAL CS Calsel or calling signal transmitted from an aircraft or other vehicle to a designated receiving station on the ground will hereinafter b... Read More
Inventors: da Silva, Herman;, Assignee: De Staat der Nederlanden, te Dezen Vertegenwoordigd Door de (The Hague, NL) |
Coding system for simultaneously signaling selected ones of a plurality of devices
A combined power and signal carrier of nominal 1 kHz frequency is generated by a voltage-controlled oscillator (VCO) and amplified to a convenient power level, for transmission via a single conductor ... Read More
Inventors: Flanders, Thomas E.; Moore, Herbert E.;, Assignee: General Electric Company (Philadelphia, PA) |
Line circuit for key telephone systems
In the drawing, I show my line circuit with a conventional two-winding line relay L having a low resistance hold winding LH and a higher resistance ring winding LR. The relay operates on energization... Read More
Inventors: Barsellotti, John Anthony;, Assignee: International Standard Electric Corporation (New York, NY) |
Radio communication system including SDL having transmission rate of relatively high speed
The present invention has an object to provide a radio communication system which, by making the downlink transmission rate relatively fast in comparison with the uplink, enables the high-speed transm... Read More
Inventors: Serizawa, Mutsumu; Nakajima, Nobuyasu; Ogura, Koji; Namekata, Minoru; Wakutsu, Takashi; Mukai, Manabu;, Assignee: Kabushiki Kaisha Toshiba (Kawasaki, JP) |
Method and apparatus for selecting a communication data rate between mobile and base stations
What is claimed is: 1. In a communication system for communication between a mobile station and a base station, a method comprising the steps of: selecting an initial data rate for communication betwe... Read More
Inventors: Cudak, Mark C.; Classon, Brian K.; Jalloul, Louay A.; Ghosh, Amitava; Love, Robert T.;, Assignee: Motorola, Inc. (Schaumburg, IL) |
Overload control in a packet-switching cellular environment
Structure FIG. 1 depicts the general structure of a network that includes a wired portion above dashed line 10 and a wireless portion below dashed line 10. The wireless network comprises cells, depic... Read More
Inventors: Maxemchuk, Nicholas Frank;, Assignee: AT&T Corp. (Basking Ridge, NJ) |
Method and apparatus for providing packet data service in a communication system
An object of the present invention is to provide methods and apparatus for providing a packet data service in a CDMA mobile communication system such that channels are occupied only during packet tran... Read More
Inventors: Kim, Young-Ky; Ahn, Jae-Min; Yoon, Soon-Young; Kang, Hee-Won;, Assignee: Samsung Electronics, Co., Ltd. (KR) |
Cellular radio communication handover systems
According to the present invention there is provided a packet switched cellular radio communication handover system for effecting handover of radio transmissions between a mobile station and one cell ... Read More
Inventors: Demetrescu, Cristian; Ilas, Constantin; Samaras, Konstantinos; Samuel, Louis Gwyn; Somerville, Fiona Clare Angharad; Wu, Jian Jun; Yan, Ran-Hong;, Assignee: Lucent Technologies Inc. (Murray Hill, NJ) |
Dedicated high priority access channel
The invention relates to a system and method for use in wireless packet data mode communications, for enabling communication between a source device and one or more target devices by capturing in a co... Read More
Inventors: Khawand, Charbel; Khawand, Jean;, Assignee: Motorola, Inc. (Schaumburg, IL) |
System for controlling signal level at both ends of a transmission sink based on a detected value
Accordingly, one aspect of the present invention is directed to a dynamic range enhancing system for increasing the dynamic range of a transmission link. Typical applications include those where the q... Read More
Inventors: Lemson, Paul H.;, Assignee: Southwestern Bell Technology Resources, Inc. (St. Louis, MO) |
Cell Phones 
