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| Number | Title | Issue Date |
| 6879792 | Two part cartridges with force biasing by printer A two part cartridge having a photoconductor part (1) and a toner part (5) having no force biasing element on either part. The two parts fit together so that a developer roller (7) in the toner part contacts a photoconductor drum (3) in t... | 04/12/2005 |
| 6807011 | Humidity tolerant scan lens A lens has a body (1), reinforcing extensions (3a, 3b) and a clear aperture (9) surrounded on top and bottom by lens body. The lens is suitable for spot scanning. The lens is made of a water absorbing material, such as most ... | 10/19/2004 |
| 6500577 | Modular polymer electrolyte membrane unit fuel cell assembly and fuel cell stack Disclosed is a polymer electrolyte membrane (PEM) fuel cell assembly apparatus for receiving an inserted membrane electrode assembly (MEA). The apparatus includes modular features for connecting a plurality of fuel cells into a planar fuel cell "stack" ca... | 12/31/2002 |
| 6439787 | Sheet metal print engine chassis assembled without fasteners A printer chassis (12) comprising several sheet metal structural members. The printer chassis (12) is fabricated by joining the sheet metal structural members using tab-and-slot junctions to form a printer chassis (12) for holding printing equipment such ... | 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 |
| 6385458 | Priority handling of location services in a mobile communications network Provided is a method, computer program, and system that implements a location service in a mobile communications network to generate a location estimate for a terminal device associated with a user. The method takes a location request, and, with a precisi... | 05/07/2002 |
| 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 |
| 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 |
| 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 |
| 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 |
| 6253433 | Apparatus and method for inscribing positioning marks on a ring band based on a pattern of locating scribe holes An apparatus and method for efficiently inscribing positioning marks on a ring band, including a positioning plate having a pattern of scribe holes defined therein, wherein the pattern of scribe holes is arranged to permit a jeweler to inscribe positionin... | 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 |
| 6245583 | Low stress method and apparatus of underfilling flip-chip electronic devices An apparatus for mass fabrication of a semiconductor assembly comprising optical sources for supplying radiant energy for rapid and controlled heating of a multitude of integrated circuit chips and substrates. The resultant thermal profile is applied to r... | 06/12/2001 |
| 6239013 | Method for transferring particles from an adhesive sheet to a substrate A method for attaching particles (12) to a substrate (14), comprising the steps of aligning particles (12) attached to an adhesive sheet (35) with contact pads (42) of a substrate (14), transferring thermal energy (38) to the adhesive sheet (35) by mainta... | 05/29/2001 |
| 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 |
| 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 |
| 6185817 | Tool for removing a propeller from a drive shaft A tool for removing a propeller from a drive shaft having a damaged shear pin. The tool has a plurality of fingers for engaging the blades of the propeller and an advancement member for leveraging against the distal end of the shaft. The advancement membe... | 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 |
| 6168344 | Bull rope safety release A bull rope safety release includes two shank pieces which can be joined together to keep a bull rope firmly in place over the body of a bucking bull or bronco. The safety release includes two D-rings which are connected to the bull rope and hold the safe... | 01/02/2001 |
| 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 |
| 6111769 | External driving circuit for bridge type synchronous rectification An external driving circuit (21) for a bridge type synchronous rectifier circuit (20) having a first and second first synchronous rectifier (Q3,Q4), a primary driving circuit (14), and a pair of totem pole drivers (16,18). The timing signal for the first ... | 08/29/2000 |
