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| Number | Title | Issue Date |
| 6611697 | Accessory for providing light based functionality to a mobile communications device Provided is a light accessory and a motion detector accessory attachable to a mobile communication device. The functionality of the devices can be incorporated into a single light and motion detector accessory. In general, the light accessory comprises a ... | 08/26/2003 |
| 6606501 | TOA Positioning of GPRS mobiles within the BSS centric architecture of a GSM network A system for TOA positioning of a GPRS mobile station (20) in a GSM network (10) comprises a Gateway GPRS Support Node (GGSN) (32) providing an interface to an LCS application (52) and adapted to communicate with the GPRS mobile station (20). The system f... | 08/12/2003 |
| 6603976 | Architecture for TOA positioning with LMU control functionality in BSC A wireless communications system (40b) capable of delivering Time Of Arrival (TOA) positioning data to at least one externally operated and maintained requesting agent (12), including a gateway (14a, 14b) to the external agent (12), which provides an inte... | 08/05/2003 |
| 6600738 | Routing in an IP network based on codec availability and subscriber preference A communications system (36) and method (60, 80) of serving subscribers having an originating network (14) in communication with a terminating network (32) via a core network (24). The core network (24) includes a plurality of external gateways (40, 42, 4... | 07/29/2003 |
| 6594242 | Broadcasting of two generation cellular system control channel information over a three generation control channel to support roaming and handover to two generation cellular networks A method, node and wireless communication terminal for providing handover and roaming from a 3G communication system to a 2G communication system. A dual-mode wireless terminal operating in a 3G communication system may obtain control channel information ... | 07/15/2003 |
| 6560442 | System and method for profiling the location of mobile radio traffic in a wireless communications network A method for locating concentration of mobile radio (MR) traffic in a coverage area 50 by identifying the locations where MRs (12) in the coverage area 50 are actively making calls. Signal strength measurements at test sites (40) of interest within the co... | 05/06/2003 |
| 6541993 | Transistor device testing employing virtual device fixturing Virtual device fixturing is used to test transistor products, such as LDMOS power amplifier products, in the final packaging and testing stage of device fabrication. The input and output impedance transformation networks of a typical test fixture are impl... | 04/01/2003 |
| 6521467 | Characterizing semiconductor wafers with enhanced S parameter contour mapping A system, and methods of its use, for characterizing semiconductor wafers with enhanced S parameter contour mapping employ small signal scatter parameter measurements of a representative sample of die to create a contour map of a wafer surface. Those die ... | 02/18/2003 |
| 6505051 | System for real time notification of subscriber service changes using messaging systems A system implementing automatic subscriber notification over a wireless telecommunications network and providing immediate subscriber notice of changes made to an individual subscriber profile is disclosed; comprising a messaging service (122) communicati... | 01/07/2003 |
| 6459600 | Method of connecting synchronous rectifier modules in parallel without output voltage faults The present invention provides a method for preventing a fault condition in a DC-DC converter (10, 20, 50) having a first secondary winding (Ns1) coupled to a first synchronous rectifier (SQ1) and a second secondary winding (Ns2) coupled to a second synch... | 10/01/2002 |
| 6442384 | System and method for identification of uplink/downlink interference sources A system and method of identifying the source of uplink and downlink interference in a disturbed cell of a wireless telecommunications network. Initially, call events occurring in offending cells are recorded. In conjunction, the disturbance events occurr... | 08/27/2002 |
| 6442151 | System and method for variable reassignment of transmission channels A method of assigning a channel to a service in a wireless communications network based on interferences levels and channel quality. Channels are preassigned and then reassigned using an algorithm that assigns a channel to a service based on uplink interf... | 08/27/2002 |
| 6426884 | Reducing reverse currents in a synchronous rectifier circuit A converter with synchronous rectification is driven in such a way so that the reverse currents do not build up and cause damage to or limit the efficiency of the circuit. Negative currents are self-adjusted to a very small percentage of load current, so ... | 07/30/2002 |
| 6408182 | Redundant mobile switching center (MSC) architecture for a radio telecommunications network A telecommunications network architecture and method of providing failover operations between mobile switching centers (MSCs). A plurality of MSCs and at least one base station controller (BSC) are connected to an Internet Protocol (IP) network in which t... | 06/18/2002 |
| 6365830 | Overhead cabling system for a telecommunications switching center An overhead cabling system (7) for a telecommunications switching center (5) including a plurality of cable tray assemblies (15) and one or more cable ladder assemblies (20). The cable ladder assemblies (20) are supported by the cable tray assemblies (15)... | 04/02/2002 |
| 6356547 | Software defined digital loop carrier system A software definable DLC architecture (75) based on high speed analog-to-digital converters (64) and digital signal processors (66) capable of sampling to at least several MHz. Multiple copper pair wires (102) are attached to a single DSP (66) and upbandi... | 03/12/2002 |
| 6353607 | IP base GSM inter-MSC handover A wireless communications system and methods having at least two interconnected mobile switching centers (12, 14), each coupled to a corresponding media gateway (74, 76) and to an IP network (40) reduces the use of circuit connections (32) during inter-MS... | 03/05/2002 |
| 6324406 | Mobile station location determination using radio signal timing values A method for collecting radio signal timing values for use in determining the location of a mobile station in a wireless network. The method includes acquiring a radio signal timing value from the mobile station's serving base transceiver station. A first... | 11/27/2001 |
| 6308477 | Telecommunications cabinet isolation, allocation and mounting system An isolating plate (10) and insulated bolt assembly (51) for electrically insulating a cabinet (22) for holding telecommunications switching equipment. The isolating plate (10) functions as an installation template to assist an installer with locating and... | 10/30/2001 |
| 6307458 | Split inductor with fractional turn of each winding and PCB including same An inductor configuration (50) comprising a three-legged inductor core (20) with a first leg (22), second leg (24), and third leg (26) integrally extending from a base (28). The first leg (22) and second leg (24) are predisposed and spaced about a first s... | 10/23/2001 |
| 6293520 | Cable puller and method of installing cables A cable pulling device for installing a second cable (14) along side an existing first cable (12). The cable puller (10) consists of a body (20) with a motor (22) mounted to the body (20). The motor (22) has an output shaft (24) attached to a drive wheel ... | 09/25/2001 |
| 6265788 | Wireless induction loop control system A wireless control system (30, 70) for distributing electrical control signals to a plurality of controlled devices (36a, 36b, 36c, 74a and 74b), including an electronic control unit (ECU) (32, 72) adapted to communicate with one or more controlled device... | 07/24/2001 |
| 6266533 | GPS assistance data for positioning of mobiles with built-in GPS A wireless communication network and methodology providing GPS assistance data for positioning of mobiles with built-in GPS receivers (GPS-MS). The system and methodology includes obtaining a site location of the BTS currently serving a GPS-MS to be locat... | 07/24/2001 |
| 6256505 | GSM transceiver unit equipped for time of arrival measurements In a base station for use in a mobile communication system for communication with mobile subscribers over a plurality of radio channels, an improved transceiver unit is provided including a traffic controller handling downlink and uplink communication tra... | 07/03/2001 |
| 6256214 | General self-driven synchronous rectification scheme for synchronous rectifiers having a floating gate A self-driven synchronous rectifier circuit having synchronous rectifiers with floating gates for a power converter or signal transformer. The circuit comprises a transformer (49, 70) having a secondary winding with a first and second terminal, a first sy... | 07/03/2001 |
| 6246948 | Wireless intelligent vehicle speed control or monitoring system and method A system (12) and method for automatically monitoring and/or controlling the actual speed of a vehicle (10) relative to the legal speed limit of the geographic area the vehicle is located in. A wireless transmission (32) containing location or legal speed... | 06/12/2001 |
| 6225944 | Manual reporting of location data in a mobile communications network The invention is, in one embodiment, a method of reporting the location of a mobile phone by locating a Global Positioning System (GPS) receiver in a mobile communications network. The method first determines the location of the GPS receiver, processes da... | 05/01/2001 |
| 6223045 | Satellite delivery of short message service (SMS) messages A method of sending a short message service (SMS) message to a mobile station operating within a Global System for Mobile Communications (GSM) radio telecommunications network which utilizes a satellite air interface link. A paging server is implemented i... | 04/24/2001 |
| 6219546 | System and method of reallocating satellite gateways in a radio telecommunications network A method of handling an incoming call to a mobile station (MS) in a radio telecommunications network having a gateway mobile switching center (G-MSC) and a home location register (HLR), and the MS communicates with the network via a satellite link compris... | 04/17/2001 |
| 6208210 | Advanced hybrid power amplifier design A hybrid radio frequency (RF) power device is provided which comprises: a flange (10) and an arrangement of die blocks (30) disposed about the flange (10), where the arrangement of die blocks (30) has die blocks (30a-30d) organized in a plurality of rows ... | 03/27/2001 |
| 6201723 | Simplified current share circuit A current sharing circuit scheme comprising first and second power modules (36,38) each including an input side (30) and an output side (32), the power modules (36, 38) coupled to each other via respective input sides (30), each of the output sides (32) i... | 03/13/2001 |
| 6195554 | Channel assignment based on uplink interference level and channel quality measurements with a forward and backward reassignment step A method (40) and device (42) for assigning transmission channels in a wireless communications network (38). The frequencies of the network (38) are discriminated to determine which transmission channels have a predetermined blocking threshold of interfer... | 02/27/2001 |
| 6188894 | Wireless communication cell layer evaluation method A method of identifying various cell layers in an existing wireless cellular-type communication system to identify poor performance areas of the system. Various cell layers in an existing system are identified, each layer have an associated cell size. A c... | 02/13/2001 |
| 6188592 | Externally-driven scheme for synchronous rectification A self-driven synchronous rectifier circuit (50) for a DC--DC power converter. The circuit comprises a primary transformer (16), a first synchronous rectifier (SQ1) coupled to the primary transformer (16), a second synchronous rectifier (SQ2) coupled to t... | 02/13/2001 |
| 6173180 | System and method of providing preferential access to subscribers of localized service areas in a radio telecommunications network A system and method of providing preferential access to a cellular telecommunications network to a localized service area (LSA) subscriber who subscribes to a LSA and is operating a mobile station (MS) within the LSA. The cells which are included in the L... | 01/09/2001 |
| 6169683 | Resonant gate drive for synchronous rectifiers An externally-driven synchronous rectifier circuit (18) comprises first and second synchronous rectifiers (SQ1, SQ2), and first and second synchronous rectifier recovery switches (SQ3, SQ5), and a pair of resonant inductors (LR1, LR2). The resonant induct... | 01/02/2001 |
| 6158134 | Equipment leveling device The present invention entails an equipment leveling device comprising a leveling head having a leveling instrument incorporated therein and a series of spaced apart support legs secured to the leveling head and projecting radially therefrom for engaging a... | 12/12/2000 |
| 6154650 | System and method for delivering a call for a mobile station using either a wireless network or a wireline network A combination mobile station and cordless wireline cordless base station, each having a different directory number, includes a mobile station that functions in a wireless network as a typical wireless unit. When the mobile station is within radio range of... | 11/28/2000 |
| 6154534 | Flexible routing of local number portability (LNP) data in a telecommunications network A system and method for deploying Local Number Portability (LNP) data including ported telephone numbers in a telecommunications network having a Number Portability Administration Center (NPAC) which stores a national database of LNP data. The system incl... | 11/28/2000 |
| 6119012 | Method and system for dynamically and periodically updating mobile station location data in a telecommunications network A method and system in a telecommunications network for dynamically updating data indicative of the availability of mobile stations within the telecommunications network. Periodically, a total number of mobile location updates and a total number of failed... | 09/12/2000 |
