Patents Represented by Attorney, Agent or Law Firm Coats & Bennett, P.L.L.C.
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Patent number: 8200266Abstract: A method (400) for use in a wireless communications system, with a first transmitter (410) and (415) a first and a second user, and at least (420) first and second channels for the first transmitter to transmit to said two users on, which method uses a first Lagrange parameter ?. The method comprises: Defining (425) a parameter qi j, which represents the inverse channel quality for user ui, and channel j, Finding (430) all channels for user ui, such that qij??i, but qi?j>?, Vi??i, and designate those channels to user u, If more than one user u, with qi?j<? for a channel j is found, then assign (435) that channel to the user ui, that ensures the condition qi j/qI?j, >?i/?i?, Vi??i. If qi j>?i, Vi then (430) leave channel j unassigned Power levels and rates may also be allocated with the aid of the invention.Type: GrantFiled: June 29, 2007Date of Patent: June 12, 2012Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Peter Larsson, Mikael Prytz
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Patent number: 8198949Abstract: The present application relates to a digital modulator comprising an output stage comprising a number of unit cell arrays, and a sampling stage. The present application relates also to a communication device comprising said digital modulator, a method for digitally modulating and a computer program product. More particularly, the digital modulator comprises an output stage comprising a number of unit cell arrays, wherein the output stage comprises at least one carrier frequency signal input terminal configured to receive a carrier frequency signal. The digital modulator comprises a sampling stage connectable to the output stage, wherein the sampling stage is configured to oversample at least one data input signal. The digital modulator comprises at least one sampling clock generating device configured to generate at least one sampling clock signal depending on the number of arranged unit cell arrays and the carrier frequency signal.Type: GrantFiled: July 1, 2009Date of Patent: June 12, 2012Assignee: ST-Ericsson SAInventors: Xin He, Jan Van Sinderen, Manuel Collados Asensio, Nenad Pavlovic
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Patent number: 8199840Abstract: In MIMO systems, two or more transmit signals are transmitted from different antenna clusters having one or more transmit antennas each. A precoding circuit weight the transmit signals transmitted from each transmit antenna using a common set of frequency independent antenna weights for all antenna clusters. The antenna weights are computed based on correlations between transmit antennas in the same antenna cluster.Type: GrantFiled: April 26, 2007Date of Patent: June 12, 2012Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Kambiz C. Zangi, Leonid Krasny
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Patent number: 8200267Abstract: A robust method of page indication (PI) detection improves the probability of detecting a transmitted PI under conditions that decrease the probability of accurate PI detection. The method includes choosing a standard value of a PI threshold against which to compare accumulated PI bits when the probability of correctly detecting the PI is high, and choosing a derived value of the PI threshold lower than the standard value when the probability of correctly detecting the PI is low. The derived PI threshold value determination includes a factor indicative of a desired probability of accurate PI detection.Type: GrantFiled: September 26, 2008Date of Patent: June 12, 2012Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Aijun Cao, Andreas Jakobsson, Jan Johansson, Fredrik Lundberg
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Patent number: 8196950Abstract: A wheelchair and an examination table is provided wherein there is provided a connector or connector assembly for connecting the wheelchair to the examination table. Once connected to the examination table, the wheelchair and patient sitting therein can be elevated, after which side frames of the wheelchair can be removed in order to facilitate examination of the patient. In addition, once elevated and the side frames removed, with the aid of a movable back that forms a part of the examination table, the back of the wheelchair can be reclined or positioned in various positions to facilitate examination and procedures.Type: GrantFiled: June 15, 2006Date of Patent: June 12, 2012Assignee: Martin Manufacturing Company, LLCInventors: Willis E. Martin, Alexander Bradford Earle, Stanley A. Brantley, Jr., Junius Warren White, Shawn Lane, Deepak Devasagayam
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Patent number: 8199734Abstract: Techniques for processing data related to common interests of two or more users of a communication system are disclosed. In an exemplary method disclosed herein, the occurrence of a trigger event at a first communication device is detected, wherein the trigger event is related to communications between the first communication device and a second communication device. In response to the trigger event, the transmission of a first data object to the second communication device is initiated, wherein the first data object comprises information indicating one or more interests of a user of the first communication device. The exemplary method further comprises receiving and processing a second data object formed in response to the first data object, the second data comprising data related to one or more common interests shared by the users of the first and second communication devices.Type: GrantFiled: December 13, 2007Date of Patent: June 12, 2012Assignee: Sony Mobil Communications ABInventor: Anthony J. Sammarco
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Patent number: 8200228Abstract: A base station indicates to mobile stations as to whether specific offsets apply for use when measuring a signal strength of base stations in neighboring cells. Additionally, if the neighboring cells do use offsets, the present invention may indicate as to whether the neighboring cell offsets are the same as the current serving cell offset.Type: GrantFiled: June 12, 2008Date of Patent: June 12, 2012Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Janne Peisa, Vera Vukajlovic
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Patent number: 8195179Abstract: The present invention relates to a method and arrangements where each frequency channel is assigned a primary (global) number and a secondary (in-band) number. In accordance with embodiments of the present invention the primary number for one frequency channel (e.g. unicast downlink channel) and one or more secondary channel numbers to account for the corresponding unicast uplink and/or for one or more MBSFN channels are signalled. The primary (global) number indicates the band and frequency channel number while the secondary (in-band) number indicates the frequency channel within the relevant frequency band.Type: GrantFiled: March 25, 2008Date of Patent: June 5, 2012Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Olav Queseth, Muhammad Kazmi, Johan Skold
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Patent number: 8195202Abstract: The present invention relates to Assisted Global Positioning System (AGPS) high accuracy positioning in unknown cell areas. By using an approach of three alternative steps a reference position, needed for AGPS positioning, is determined. The first step involves using the location of any neighboring cell. The second involves using the location of a cell within the same Location Area as the cell serving the portable communication device to position. The third step comprises determining a fixed point within the same geographical area as the Serving Mobile Location Center (SMLC) is serving, and using this fixed point as a reference location. Using the three-step approach the AGPS positioning can be optimized, providing a possibility to position, for instance a mobile phone, by AGPS even though the location of the cell serving the phone is unknown to the positioning node operating the serving cell.Type: GrantFiled: November 23, 2009Date of Patent: June 5, 2012Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventor: Andreas Hansson
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Patent number: 8186893Abstract: A mount is provided for being secured to a support structure and which is configured to receive and support a device such as a camera. The mount includes a series of brackets and one or more rotary detent assemblies that interconnect one bracket to another. Furthermore, the mount provides a rotary detent assembly that enables the detent assembly to be angularly adjusted relative to one of the brackets that forms a part of the mount.Type: GrantFiled: October 25, 2010Date of Patent: May 29, 2012Assignee: Porticos, Inc.Inventors: Gregory Scott Patterson, William Kevin Carpenter
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Patent number: 8186015Abstract: A hinge mechanism pivotally connects first and second housings of an electronics device. The hinge includes a bracket, a floating shaft, a cam member, and a biasing system. The cam member is mounted on the floating shaft. The biasing system is disposed within the first housing, and includes one or more biasing members that allow the cam member and the floating shaft to move axially in a first direction. The one or more biasing members also bias the cam member and the floating shaft in a second, opposing direction. Biasing the floating shaft and the cam member in the second direction maintains the pivotable connection between the first and second housings, and generates the force necessary to yieldingly resist a user pivoting at least one of the first and second housings.Type: GrantFiled: September 29, 2005Date of Patent: May 29, 2012Assignee: Sony Mobile Communications ABInventors: Roy R. Attride, John Thomas Sadler
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Patent number: 8181419Abstract: A connector assembly for accurately projecting fasteners for connecting two building members together while permitting limited relative motion between the members. The assembly includes a plate having one or more longitudinal slots. The plate is secured to or a part of one of the building members. The plate is connected to the other building member by fasteners projected through breakaway washers formed in the slots. The breakaway washers each have an opening for guiding the fastener and centering the fastener on the slot. Centering the fastener on the slot prevents inadvertent clamping of the plate and the other building member together so that limited relative motion is permitted.Type: GrantFiled: December 3, 2009Date of Patent: May 22, 2012Assignee: The Steel Network, Inc.Inventor: Edward R. diGirolamo
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Patent number: 8184833Abstract: A speaker is integrally formed with a multi-layered printed circuit board. The printed circuit board includes a flexible membrane layer with a conductive pattern thereon. Positive and negative elements are disposed on opposing sides of the flexible membrane. A drive circuit connects to the flexible membrane layer and applies current to the flexible membrane layer responsive to an audio signal to generate audible sounds.Type: GrantFiled: December 14, 2007Date of Patent: May 22, 2012Assignee: Sony Ericsson Mobile Communications ABInventor: Randolph Cary Demuynck
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Patent number: 8185067Abstract: A modulation circuit for use in a radiofrequency transmitter includes a local oscillator circuit configured to generate one or more local oscillator signals at a desired frequency and with a duty cycle at or about twenty-five percent, and a modulator configured to generate one or more modulated signals responsive to the one or more local oscillator signals and one or more baseband information signals. In at least one embodiment, the modulation circuit includes a modulator comprising a combined mixing and transconductance circuit that includes a transistor circuit for each baseband information signal serving as a modulation input to the modulator. Each transistor circuit comprises a first transistor driven by the baseband information signal and coupling a modulator output node to a corresponding transconductance element, and a second transistor driven by one of the one or more local oscillator signals and coupling the corresponding transconductance element to a signal ground node.Type: GrantFiled: January 27, 2011Date of Patent: May 22, 2012Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Sven Mattisson, Magnus Nilsson
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Patent number: 8185058Abstract: A device has a radio transmitter for a first radio link such as a Bluetooth link, having a coexistence controller arranged to communicate with a co-located other radio transmitter for another radio link, to enable both radio links to use potentially conflicting transmission frequencies. A link monitor monitors the first radio link, according to an output from the coexistence controller. By making the link monitor dependent on the coexistence controller, it can distinguish between transmission losses caused by the coexistence interface, and those caused by other effects, to reduce the risk of a data rate controller unnecessarily reducing a transmission rate if transmission losses caused by the coexistence control are misinterpreted as a drop in link quality.Type: GrantFiled: February 15, 2008Date of Patent: May 22, 2012Assignee: ST-Ericsson SAInventors: Pietro Capretta, Vincent Charlier
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Patent number: 8184046Abstract: A time reference system for generating a time reference from signals produced by a global navigation satellite constellation has a satellite signal receiver to receive and down-convert code-modulated signals from a plurality of satellites and a correlator to track and decode the down-converted signals to provide signals containing partial pseudo-range measurements for respective satellites. A data processing arrangement receives assistance data from an external source and performs data-bit synchronization in which bit edges of a low frequency data bit stream carried by the received satellite signals are identified, to perform a preliminary position-velocity-time solution to provide an approximate time reference, and to perform auto-correlation of pre-selected data sequences in the data stream to resolve time ambiguities thereby to compute a precise time reference signal in weak received signal conditions.Type: GrantFiled: September 17, 2009Date of Patent: May 22, 2012Assignee: ST-Ericsson SAInventors: Jacqueline Peta Bickerstaff, Esther Olulu Anyaegbu, Peter Mark Fleming, Gerald Whitworth
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Patent number: 8179320Abstract: The present invention relates to a method and devices for determining the position of a user equipment in a mobile radio communications system. According to the invention, the position is determined via a distortion in a radio signal transmitted to or from the user equipment, wherein the distortion is caused by a scatterer being positioned at a particular location and having time-dependent scattering properties such that the scattering of a radio signal gives rise to a distortion by which said scattering properties may be identified.Type: GrantFiled: June 17, 2008Date of Patent: May 15, 2012Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Jan-Erik Berg, Jonas Medbo
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Patent number: 8176800Abstract: A method of determining the tension in an elongated rod is described. The method includes impacting the rod and measuring the vibration response of the rod. Further, the method entails generating a theoretical vibration response of the rod based in part at least on the structural properties of the rod. Thereafter, the method entails adjusting the theoretical vibration response to cause the theoretical vibration response to conform with at least a portion of the measured vibration response. Based on the adjusted theoretical vibration response, the tension of the rod is determined.Type: GrantFiled: August 17, 2009Date of Patent: May 15, 2012Assignee: FDH Engineering, Inc.Inventors: Mark Cesare, J. Darrin Holt
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Patent number: 8172733Abstract: A linearly adjustable multi resistance ratio exercise apparatus provides at least two linearly adjustable flexible connector ends which can be pressed or pulled for functional and strength training exercises. The flexible connector ends may be interconnected with resistance wherein the pressing or pulling of one flexible connector end will provide the user a different ratio of resistance than the pressing or pulling of an alternate flexible connector end. The user can select a flexible connector end which will provide less resistance and will provide more flexible connector travel for functional training exercises. The user can select a flexible connector end which will provide more resistance and will provide less flexible connector travel for strength training exercises. Some flexible connector ends may share the same swivel pulley assembly. One handle assembly may be attached to multiple flexible connector ends to obtain additional ratios of resistance.Type: GrantFiled: January 28, 2010Date of Patent: May 8, 2012Inventor: Roger Batca
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Patent number: 8175031Abstract: A method of providing packet data service is based on selectively switching packet data traffic for a mobile station operating in a boundary region between two service areas from a shared packet data channel to a dedicated packet data channel, or vice versa. For example, a source base station can be configured to switch packet data traffic for a mobile station from a shared packet data channel to a dedicated packet data channel as it approaches a shared channel service boundary. Additionally, the source base station can be configured to change the packet data service to the mobile station from a dedicated packet data channel to a shared packet data channel, such as when the mobile station moves back into the source base station's service area.Type: GrantFiled: November 18, 2004Date of Patent: May 8, 2012Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventor: Rath Vannithamby