Patents Represented by Attorney, Agent or Law Firm Kenneth A. Haas
  • Patent number: 8346170
    Abstract: Apparatus, which has a multilayer protocol stack for processing incoming messages, determines PTT state from messages received from a peripheral over a wireless serial communication channel. The apparatus: receives (902), from the peripheral, a sequence of messages comprising a plurality of data messages (e.g., RFCOMM messages), wherein each of the data messages provides an indication of a PTT state for the apparatus, and wherein the sequence of data messages is received over a short range wireless data path for exchanging priority data that comprises a wireless serial communication channel and that is different from a short range wireless data path for exchanging non-priority data. A pattern detector in the apparatus performs (904) a pattern matching process, within the first two layers of the multilayer protocol stack, to determine the PTT state indicated by each of the data messages and sets (906) the apparatus to have the determined PTT states.
    Type: Grant
    Filed: March 9, 2012
    Date of Patent: January 1, 2013
    Assignee: Motorola Solutions, Inc.
    Inventors: John B. Preston, George S. Hanna
  • Patent number: 8306547
    Abstract: An apparatus for resource sharing between a plurality of communication networks (103, 107, 111) each having a nominal resource allocation of a shared air interface resource and a resource exchange allowance is provided. The apparatus (201) comprises a sharing instigation processor (205) which initiates a temporary resource allocation of a first air interface resource from a nominal resource allocation of a first network (103). A network interface (201) receives offer messages from a plurality of networks (107, 111). Each offer message comprises a resource exchange offer value for at least part of the first air interface resource. A selection processor (207) selects a second network (107) for example by selecting the highest offer value for a given resource. An allocation message generator (211) transmits a resource allocation message to the second network (107) indicating a temporary allocation of at least part of the first air interface resource.
    Type: Grant
    Filed: June 6, 2006
    Date of Patent: November 6, 2012
    Assignee: Motorola Solutions, Inc.
    Inventors: David Grandblaise, Remy Pintenet, Jean Christophe Dunat
  • Patent number: 8295893
    Abstract: Systems and methods for managing power consumption in a device include toggling an ON-OFF setting of apparatus, which controls a carrier detector. The toggling is carried out according to a first duty cycle having a fixed OFF-time duration and a first dwell time having a first dwell time duration during which the carrier detector performs radio frequency carrier detection function. The device receives at least one input that affects the radio frequency carrier detection function, and the first duty cycle is changed to a second duty cycle. The toggling is carried out according to the second duty cycle, which has the same fixed OFF-time duration of the first duty cycle and a second dwell time having a second dwell time duration that is longer than the first dwell time duration, during which the radio frequency carrier detection function is performed.
    Type: Grant
    Filed: September 10, 2010
    Date of Patent: October 23, 2012
    Assignee: Motorola Solutions, Inc.
    Inventors: Yadunandana N. Rao, Scott M. Alazraki, Apoorv Chaudhri
  • Patent number: 8279765
    Abstract: Various embodiments are described to provide more efficient interworking in inter-technology networks. A first network node (121) provides access network service to remote units (101, e.g.) using a first access network technology, while a second network node provides access network service to remote units using a second and different access network technology. The first network node indicates to a networking device (122), what messaging associated with the second access network technology will be supported by a remote unit via the first network node. The networking device receiving this indication can then determine whether new messaging for the remote unit associated with the second access network technology and to be conveyed via the first network node, is supported. This networking device can then prevent the conveyance of the new messaging via the first network node.
    Type: Grant
    Filed: September 24, 2007
    Date of Patent: October 2, 2012
    Assignee: Motorola Solutions, Inc.
    Inventor: Shahab M. Sayeedi
  • Patent number: 8248965
    Abstract: A service convergence fabric (103) is operably disposed between a plurality of independent access networks, control networks, and service networks (104) and a converged application layer (100). This service convergence fabric is then used (202) to receive a service request, process the service request, provide a corresponding response, and publish that response to facilitate the service request. Processing the service request can comprise processing the service request with respect to resources to support the service request, user session status as corresponds to the service request, and user preferences as correspond to the service request. Providing a response can comprise providing a response that comprises at least one of a processed service request and a converged response to the service request.
    Type: Grant
    Filed: September 14, 2006
    Date of Patent: August 21, 2012
    Assignee: Motorola Solutions, Inc.
    Inventors: Patrick D. Smith, Peter A. Lin, Patrick M. Maurer, Narayanan Venkitaraman
  • Patent number: 8194700
    Abstract: A method of resource sharing between a plurality of communication networks each having a nominal resource allocation of a shared air interface resource and a resource exchange allowance is provided. A temporary resource allocation of a first air interface resource from a nominal resource allocation of a first network is initiated. Subsequently, a plurality of offer rounds are executed with each offer round comprising determining offer values for the first air interface resource. A second network is then selected in response to the determined offer values and subsequently a resource allocation message is transmitted to the second network. The resource allocation message indicates a temporary allocation of at least part of the first air interface resource from the first network to the second network. Consequently, the resource exchange allowance of the second network is reduced accordingly. Each offer round comprises receiving new offer values from the first plurality of networks.
    Type: Grant
    Filed: June 6, 2006
    Date of Patent: June 5, 2012
    Assignee: Motorola Solutions, Inc.
    Inventors: David Grandblaise, Jean-Christophe Dunat, Remy Pintenet
  • Patent number: 8095160
    Abstract: An intermediate station and method for facilitating handover in a multi-hop communications system is disclosed. The method may include receiving a handover trigger, finding a target station to receive handover, determining whether the handover requires a timing change, wherein if it is determined that a preamble and broadcast timing change for one or more downstream stations is required, estimating when the handover will take place, instructing the one or more downstream stations to resynchronize, and performing the handover to the target station.
    Type: Grant
    Filed: November 7, 2006
    Date of Patent: January 10, 2012
    Assignee: Motorola Solutions, Inc.
    Inventors: Ryutaro Hamasaki, Masahito Asa, Tetsu Ikeda, Mohsin M Mollah
  • Patent number: 7870180
    Abstract: A method (1500) and apparatus (700, 2300, 2400) for aggregating two or more input signals with a versatile reconfigurable signal aggregator. The aggregator (700, 2300, 2400) is reconfigured by adjusting a control signal ?, and can emulate a range of union type signal aggregators, a range of intersection type signal aggregators, and a continuum of functions between the two, including a signal averager. The versatility of the aggregator (700, 2300, 2400) allows systems in which the aggregator (700, 2300, 2400) is incorporated to be highly adaptable, and thereby fosters improved machine learning.
    Type: Grant
    Filed: October 31, 2006
    Date of Patent: January 11, 2011
    Assignee: Motorola, Inc.
    Inventors: Magdi A. Mohamed, Weimin Xiao
  • Patent number: 7865717
    Abstract: Communication nodes, acting as intermediate routers for communication packets transmitted between a source node and a destination node, are provided with different access rights to the fields of the routed communication packets. Routes of intermediate routers between the source node and the destination node are discovered and the identities of intermediate routers on the discovered routes are collected. The aggregate trust levels of the intermediate routers are computed allowing the most trusted route to be selected. Encryption keys are securely distributed to intermediate routers on the most trusted route based on the trust level of the intermediate routers and fields of the communication packets are encrypted with encryption keys corresponding to the assigned trust level. Intermediated nodes are thereby prevented from accessing selected fields of the communication packets.
    Type: Grant
    Filed: July 18, 2006
    Date of Patent: January 4, 2011
    Assignee: Motorola, Inc.
    Inventors: George Calcev, Bogdan O Carbunar, Madjid F. Nakhjiri
  • Patent number: 7818011
    Abstract: The radio frequency (RF) environment is scanned and analyzed prior to entering a building or otherwise non-ideal propagation path environment. Upon entering the building or non-ideal propagation path environment, the mobile unit will scan the RF environment from within the building. An attenuation factor is determined for various frequencies. A channel then chosen to operate on in the cognitive system based on the attenuations of the various frequencies.
    Type: Grant
    Filed: July 13, 2006
    Date of Patent: October 19, 2010
    Assignee: Motorola, Inc.
    Inventors: Gregory J. Buchwald, Lawrence M. Ecklund, Stephen L. Kuffner
  • Patent number: 7742764
    Abstract: During operation of a secondary communication system 100, a device will perform spectrum sensing of certain channels (either by itself or as part of a group of nodes 104). When activity is found on a channel from a primary user, other devices will be notified that the channel is not available for use. The device may then modify its spectrum sensing to assist another device (or group of devices) that have not yet found activity on a different set of channels. By assigning additional channels to devices with extra capacity, the overall spectrum-sensing efficiency and performance of the communication system 100 is raised.
    Type: Grant
    Filed: March 23, 2007
    Date of Patent: June 22, 2010
    Assignee: Motorola, Inc.
    Inventors: Steven F. Gillig, Stephen L. Kuffner
  • Patent number: 7725717
    Abstract: The invention provides for secure end-to-end user authentication by a remote server communicating with a communication device. The communication device further communicates with an authentication device, which provides a user authentication message to the communication device for forwarding to the remote server. The authentication device comprises a data store for storing user authentication credentials. A user authentication processor performs a local authentication of a user of the authentication device in response to a user input. An authentication processor generates the authentication message if the user authentication is valid. The authentication processor implements a cryptographic function based on the user authentication credentials. A transmitter then transmits the authentication message to the at least one communication device.
    Type: Grant
    Filed: August 31, 2005
    Date of Patent: May 25, 2010
    Assignee: Motorola, Inc.
    Inventors: Pierre Roux, Marco Fratti, Madjid F. Nakhjiri
  • Patent number: 7640373
    Abstract: A base station (101) will request the transmission of quality information from a particular remote stations (102, 103) only when data is queued to be transmitted to the remote stations. Once a remote station begins the transmission of channel quality information, the transmission of such information continues until the data transmission is successfully delivered to the remote station. The base station receives the channel quality information and adjusts the modulation and coding of the remote stations accordingly. Where data is transmitted simultaneously to a plurality of remote stations, a set of queues (303) for the multiple remote stations is maintained, and based on queue status, a channel quality request messages is sent to a sub-set of remote stations with data queued.
    Type: Grant
    Filed: April 25, 2003
    Date of Patent: December 29, 2009
    Assignee: Motorola, Inc.
    Inventors: Mark C. Cudak, Brian K. Classon, Anup Talukdar
  • Patent number: 7493124
    Abstract: A method and apparatus is provided to update information within a first network (103) via a second network (102) when communication no longer exists with the first network. During operation the first network is accessed via a PSTN (108) message that is never answered by the first network. Based on the called number and caller-identification information, the first network updates its system information.
    Type: Grant
    Filed: March 10, 2005
    Date of Patent: February 17, 2009
    Assignee: Motorola, Inc.
    Inventors: Alex P. Hirsbrunner, Anatoly S. Belkin, Sandra R. Abramson, David Chavez, Steven M. Milton, Leigh Chinitz
  • Patent number: 7394774
    Abstract: During route discovery in an ad-hoc communication network, an overlay transceiver (104) determines a plurality of “seed” nodes that lie between the source and the destination node. The seed nodes are notified of the desire to discover a route between the source and the destination node. Once notified, the seed nodes immediately broadcast route discovery messages. All nodes (101) within the underlay communication system (110) periodically listen for route discovery messages. If any node within the underlay communication system (110) receives a route discovery message having the same route identification, route information between the two seeds will be provided to the overlay transceiver (104), giving the overlay communication system a “path” between the seeds. Once the overlay transceiver (104) receives route information between all seeds, it then determines an appropriate route between source and destination devices, and broadcasts this information to the source and the destination devices.
    Type: Grant
    Filed: October 14, 2004
    Date of Patent: July 1, 2008
    Assignee: Motorola, Inc.
    Inventor: George Calcev
  • Patent number: 7245933
    Abstract: In accordance with the preferred embodiment of the present invention all remote units (113–118) participating in a group call can actively transmit uplink communications to their respective base stations (101–102) via low-data rate traffic channels (103–108). The remote units having the highest transmit energies are summed and broadcast to all remote units (113–118) participating in the group call. Because only those remote units having the highest transmit energies are summed and broadcast, network congestion is greatly reduced.
    Type: Grant
    Filed: March 1, 2000
    Date of Patent: July 17, 2007
    Assignee: Motorola, Inc.
    Inventors: ShaoWei Pan, Jinzhong Zhang, Chunyang Meng, Hechun Cai, Richard A Comroe
  • Patent number: 7242941
    Abstract: A mobile station typically determines whether to drop a communication link and/or a base transceiver station (BTS) based on a performance of an associated forward link. In order to avoid dropping a communication link that has a weak forward link but a strong reverse link, a communication system is provided that determines whether the reverse link is still good before determining to drop the communication link. In one embodiment, the communication system determines whether reverse link is still good based on a quality metric associated with the reverse link and quality metric(s) associated with one or more other reverse links that are in a soft-handoff mode with reverse link. In another embodiment, the communication system determines whether reverse link is still good by comparing a quality metric associated with the reverse link to a threshold.
    Type: Grant
    Filed: May 16, 2003
    Date of Patent: July 10, 2007
    Assignee: Motorola, Inc.
    Inventors: Ravi M. Adatrao, Ming Dai, Jonathan H. Gross, Harn-Jier Lin, Takeshi Morishima, Daniel J. DeClerck
  • Patent number: 7242722
    Abstract: In an OFDM system the same Walsh code is used at the same time for a plurality of transmitters. The multiple transmitters can be from the same, or different devices (e.g., different base stations on the downlink, different terminals on the uplink). Each subcarrier/antenna combination will share a similar pilot Walsh code, except for the fact that the scrambled spread pilot signals will be phase shifted on some subcarriers of some antennas, based on the subcarrier/antenna combination.
    Type: Grant
    Filed: September 21, 2004
    Date of Patent: July 10, 2007
    Assignee: Motorola, Inc.
    Inventors: Thomas P. Krauss, Kevin L. Baum, Vijay Nangia
  • Patent number: 7184790
    Abstract: When any remote unit (113–118) desires to create a talk group, it transmits an inbound message to a group call database (112). The inbound message includes the identity of the requesting communication device, and the participants of the talk group. Upon receiving the request, group the call database (112) provides an outbound message to all members of the newly created talk group giving them a chance to opt out of inclusion into the new talk group. The database (112) then creates a database entry with the new talk group and those remote units that positively responded to the outbound message.
    Type: Grant
    Filed: April 2, 2002
    Date of Patent: February 27, 2007
    Inventors: Jheroen P. Dorenbosch, Richard L. Bennett
  • Patent number: 7165205
    Abstract: A method for interlacing columns of different weights is proposed for a parity-check matrix H that results in good performing LDPC codes shortened or unshortened. Matrix H comprises a section H1 and a section H2, and wherein H1 has a plurality of different column weights and comprises a plurality of sub-matrices where columns of at least one weight are substantially interlaced between the sub-matrices.
    Type: Grant
    Filed: June 23, 2004
    Date of Patent: January 16, 2007
    Assignee: Motorola, Inc.
    Inventors: Yufei Blankenship, Brian K. Classon