Patents by Inventor James Fischer

James Fischer has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8965431
    Abstract: A control device includes a first transceiver for communicating first control data with a first plurality of devices that utilize the millimeter wave frequency band in accordance with a first protocol, wherein the first transceiver utilizes the millimeter wave frequency band in accordance with the first protocol. A second transceiver communicates second control data with a second plurality of devices that utilize the millimeter wave frequency band in accordance with a second protocol, wherein the second transceiver utilizes the millimeter wave frequency band in accordance with the second protocol. A resource controller allocates resources of the millimeter wave frequency band to the first plurality of devices and the second plurality of devices based on the first control data and the second control data.
    Type: Grant
    Filed: August 22, 2011
    Date of Patent: February 24, 2015
    Assignee: Broadcom Corporation
    Inventors: Jeyhan Karaoguz, Jason A. Trachewsky, Vinko Erceg, Matthew James Fischer, Christopher J. Hansen, Saishankar Nandagopalan, Murat Mese
  • Patent number: 8958398
    Abstract: Time division multiple access (TDMA) media access control (MAC) adapted for single user, multiple user, multiple access, and/or MIMO wireless communications. Various com systems may include smart meter stations (SMSTAs) and/or wireless stations (STAs). Appropriate coordination is made with respect to such communication devices to ensure appropriate uplink (and/or downlink) communications between a network manager or coordinator (e.g., an access point (AP)) and the SMSTAs and/or STAs. With respect to SMSTAs, the relative duration of time that such communication devices are awake and operative versus asleep (or in a reduced power and/or functionality state) can be significant. Certain implementations may include a relatively large number of such communication devices (e.g., 10s, 100a, 1000s, or more), and appropriate coordination and scheduling of such communications to/from them is made using one or more variations of TDMA signaling (e.g.
    Type: Grant
    Filed: June 29, 2012
    Date of Patent: February 17, 2015
    Assignee: Broadcom Corporation
    Inventors: Peiman Amini, Matthew James Fischer
  • Publication number: 20150043549
    Abstract: One or multiple bit restricted access window (RAW) end point determination within for single user, multiple user, multiple access, and/or MIMO wireless communications. A RAW is defined in which only devices of the particular class (e.g., low power class, Z class, smart meter station (SMSTA) class, etc.) are allowed access to the communication medium. Indication of the end of such a RAW may be included within one or more bits set within a signal field (SIG) field of a framer packet generated by a given device within the system and transmitted to one or more other devices. After completion of the RAW, other respective devices of at least one other type of class may be provided access to the communication medium. The manner of access to the communication media outside of the RAW may be varied (e.g., scheduled, based on carrier sense multiple access/collision avoidance (CSMA/CA), etc.).
    Type: Application
    Filed: October 24, 2014
    Publication date: February 12, 2015
    Applicant: BROADCOM CORPORATION
    Inventor: Matthew James Fischer
  • Patent number: 8953659
    Abstract: Response frame modulation coding set (MCS) selection within single user, multiple user, multiple access, and/or MIMO wireless communications. With respect to any exchange between communication devices in which there is a response frame, a first frame (e.g., an eliciting frame) is a first transmitted from the eliciting communication device to the responding communication device, and a second frame (e.g., a response frame) is transmitted from the responding communication device to the eliciting communities device. Appropriate selection of MCS to be used within the response frame may be determined explicitly or implicitly. One or more parameters (e.g., a limit parameter, a reduction parameter, etc.) may be used to determine the MCS of the response frame. The MCS employed for a response frame may be selected from a basic MCS set that ensures all response frames from any responding communication device may be properly received by the eliciting communication device.
    Type: Grant
    Filed: June 15, 2012
    Date of Patent: February 10, 2015
    Assignee: Broadcom Corporation
    Inventors: Peiman Amini, Matthew James Fischer
  • Publication number: 20150016332
    Abstract: Management frame map directed operational parameters within multiple user, multiple access, and/or MIMO wireless communications. A management frame map may be generated within and transmitted from a first wireless communication device to a group of other wireless communication devices. Thereafter, certain subsequently transmitted packets may be analyzed and processed by the receiving wireless communication devices based on that earlier received management frame map. One or more operational parameters are determined for a subsequently transmitted packet based on the previously received management frame map. The operational parameters govern the manner in which at least a portion of the subsequently transmitted packet is processed.
    Type: Application
    Filed: September 29, 2014
    Publication date: January 15, 2015
    Applicant: BROADCOM CORPORATION
    Inventors: Matthew James Fischer, Vinko Erceg, Joonsuk Kim, Joseph Paul Lauer, Peiman Amini
  • Publication number: 20140369276
    Abstract: A communication device includes a processor configured to generate OFDMA packets using various OFDMA packet structures and to transmit such OFDMA packets, via a communication interface, to at least one other communication device. The processor is also configured to receive, interpret, and process such OFDMA packets. One example of an OFDMA packet includes common SIG for two or more other wireless communication devices modulated across all sub-carriers of the OFDMA packet. The common SIG is followed by first SIG and first data for a first other wireless communication device modulated across first subset of the sub-carriers of the OFDMA packet and is also followed by second SIG and second data for a second other wireless communication device modulated across second subset of the sub-carriers of the OFDMA packet. Another example of an OFDMA packet includes the common SIG followed directly by first data and second data modulated as described above.
    Type: Application
    Filed: June 12, 2014
    Publication date: December 18, 2014
    Applicant: BROADCOM CORPORATION
    Inventors: Ron Porat, Matthew James Fischer, Nihar Jindal, Vinko Erceg
  • Patent number: 8913560
    Abstract: One or multiple bit restricted access window (RAW) end point determination within for single user, multiple user, multiple access, and/or MIMO wireless communications. A RAW is defined in which only devices of the particular class (e.g., low power class, Z class, smart meter station (SMSTA) class, etc.) are allowed access to the communication medium. Indication of the end of such a RAW may be included within one or more bits set within a signal field (SIG) field of a framer packet generated by a given device within the system and transmitted to one or more other devices. After completion of the RAW, other respective devices of at least one other type of class may be provided access to the communication medium. The manner of access to the communication media outside of the RAW may be varied (e.g., scheduled, based on carrier sense multiple access/collision avoidance (CSMA/CA), etc.).
    Type: Grant
    Filed: January 11, 2013
    Date of Patent: December 16, 2014
    Assignee: Broadcom Corporation
    Inventor: Matthew James Fischer
  • Publication number: 20140362840
    Abstract: Coordination and synchronization is performed between two or more wireless network managers (e.g., access points (APs)). A first wireless network manager supports first communications with first other wireless communication devices, and a second wireless network manager supports second communications with those first and/or second other wirelessly case devices. The first and second wireless network managers also support communications with one another to coordinate the first and second communications supported with the first and/or second other wireless communication devices. Examples of coordination include selection of which other wireless communication devices are serviced or in communication with which of the first and second wireless network managers, selection of operational parameters (e.g., modulation coding set (MCS), beamforming, frequency band assignment, channel assignment, scheduling information, transmit power, etc.
    Type: Application
    Filed: June 5, 2014
    Publication date: December 11, 2014
    Applicant: BROADCOM CORPORATION
    Inventors: Chiu Ngok Eric Wong, Ron Porat, Nihar Jindal, Matthew James Fischer, Vinko Erceg
  • Patent number: 8885535
    Abstract: Management frame map directed operational parameters within multiple user, multiple access, and/or MIMO wireless communications. A management frame map may be generated within and transmitted from a first wireless communication device to a number of other wireless communication devices. Thereafter, certain subsequently transmitted packets may be analyzed and processed by the receiving wireless communication devices based on that earlier received management frame map. One or more operational parameters are determined for a subsequently transmitted packet based on the previously received management frame map; such operational parameters then govern the manner in which at least a portion of the subsequently transmitted packet is processed.
    Type: Grant
    Filed: August 6, 2010
    Date of Patent: November 11, 2014
    Assignee: Broadcom Corporation
    Inventors: Matthew James Fischer, Vinko Erceg, Joonsuk Kim, Joseph Paul Lauer, Peiman Amini
  • Patent number: 8879523
    Abstract: Management frame directed cluster assignment within multiple user, multiple access, and/or MIMO wireless communications. From a first wireless communication device, a management frame may be transmitted to a number of other wireless communication devices to assign respective clusters (i.e., cluster being one or more channels within one or more bands) for use in communications by those other wireless communication devices. The first wireless communication device may be an access point (AP), and the others may be wireless stations (STAs); alternatively, all of the wireless communication devices in the communication system (e.g., including the first wireless communication device) may be STAs. The cluster assignment may be modified for any of a number of various reasons (e.g., periodically, after a certain number of packets being transmitted and/or received, communication system operating condition change, change in number, type, capabilities, etc.
    Type: Grant
    Filed: August 6, 2010
    Date of Patent: November 4, 2014
    Assignee: Broadcom Corporation
    Inventors: Matthew James Fischer, Vinko Erceg, Joseph Paul Lauer, Peiman Amini, Joonsuk Kim
  • Publication number: 20140307653
    Abstract: A wireless communication device is implemented to include a communication interface and a processor. The processor is configured to process communications associated with the other wireless communication devices within the wireless communication system to determine one or more traffic characteristics of those communications as well as one or more class characteristics of the other wireless communication devices. The processor is configured to classify the communications into one or more access categories based on the one or more traffic characteristics and is configured to classify the other devices into one or more device class categories based on the one or more class characteristics. The processor is then configured to generate one or more channel access control signals based on these classifications. The communication interface of the device is configured to transmit the one or more channel access control signals to one or more of the other devices.
    Type: Application
    Filed: April 14, 2014
    Publication date: October 16, 2014
    Applicant: BROADCOM CORPORATION
    Inventors: Yong Liu, Ron Porat, Nihar Jindal, Vinko Erceg, Matthew James Fischer, Chiu Ngok Eric Wong
  • Patent number: 8848624
    Abstract: Multi-user uplink communications within multiple user, multiple access, and/or MIMO wireless communication systems. Within such communication systems, uplink communications from various receiving wireless communication devices (e.g., STAs) to a transmitting wireless communication device (e.g., AP) may occur in any of a number of various dimensions or combinations thereof including MU-MIMO dimension and frequency dimension (asynchronous FDM or synchronous FDM). In accordance with such uplink communications, various considerations such as time synchronization, frequency synchronization, and/or power control (including wireless communication device grouping). When performing uplink asynchronous FDM signaling, power control as grouping is used. When performing uplink synchronous FDM signaling, time synchronization, frequency synchronization, and power control (such as including wireless communication device grouping) is performed.
    Type: Grant
    Filed: August 17, 2010
    Date of Patent: September 30, 2014
    Assignee: Broadcom Corporation
    Inventors: Peiman Amini, Joonsuk Kim, Matthew James Fischer, Joseph Paul Lauer, Vinko Erceg
  • Patent number: 8848639
    Abstract: Frequency selective transmission within single user, multiple user, multiple access, and/or MIMO wireless communications. Adaptation among different respective sub-channels and/or channels is effectuated within a wireless communication system. Such a wireless communication system may include an access point (AP) and one or more wireless stations (STAs). The respective channelization employed for various communications between the devices within such a wireless communication system may be adapted based upon any of a number of considerations. For example, a receiver communication device may indicate to a transmitter communication device one or more preferred sub-channels and/or channels on which subsequent communications are to be performed.
    Type: Grant
    Filed: April 16, 2012
    Date of Patent: September 30, 2014
    Assignee: Broadcom Corporation
    Inventors: Ron Porat, Matthew James Fischer, Vinko Erceg
  • Publication number: 20140286203
    Abstract: A wireless communication device includes communication interface configured to receive and transmit signals and a processor configured to generate and process such signals. The communication interface of the wireless communication device is configured to receive a first signal from a first other wireless communication device, and the processor of the wireless communication device is configured to process the first signal to determine one or more concurrent transmission parameters. The processor of the wireless communication device is configured to generate the second signal based on the one or more concurrent transmission parameters and direct the communication interface to transmit the second signal to a second other wireless communication device during receipt of the first signal from the first other wireless communication device. The wireless communication device may be configured to make such concurrent transmissions based on one or more considerations such as the power level of the first signal.
    Type: Application
    Filed: February 27, 2014
    Publication date: September 25, 2014
    Applicant: BROADCOM CORPORATION
    Inventors: Nihar Jindal, Yong Liu, Matthew James Fischer, Ron Porat, Chiu Ngok Eric Wong, Vinko Erceg
  • Publication number: 20140286238
    Abstract: A wireless communication device is configured to generate frames based on any of a number of different frame formats for transmission to one or more other recipient wireless communication devices. The frame may be implemented to include data intended for two or more recipient devices. The device encodes first data intended for a first recipient device using first one or more coding parameters and encodes second data intended for a second recipient device using second one or more coding parameters. The manner by which the first and second data have been encoded is indicated within one or more other fields within the frames based on the selected frame format. In one example, a single preamble specifies the first and second one or more coding parameters. In another example, an initial preamble and one or more respective sub-preambles specify the first and second one or more coding parameters.
    Type: Application
    Filed: March 21, 2014
    Publication date: September 25, 2014
    Applicant: BROADCOM CORPORATION
    Inventors: Vinko Erceg, Ron Porat, Nihar Jindal, Matthew James Fischer, Yong Liu, Chiu Ngok Eric Wong
  • Publication number: 20140281689
    Abstract: A method and system for rebuilding data following a disk failure within a RAID storage system. The rebuild process keeps track of the relative number of READ operations across a RAID group so that following a RAID disk failure, the most frequently read areas of the RAID group can be rebuilt before less frequently accessed areas. Host READs to the rebuilt area will no longer necessitate on-the-fly rebuild from parity data, and thus host performance will be much less impacted than with prior rebuild processes.
    Type: Application
    Filed: December 5, 2013
    Publication date: September 18, 2014
    Applicant: Teradata Corporation
    Inventor: Matthew James Fischer
  • Publication number: 20140248506
    Abstract: Techniques for graphic formation via material ablation described. In at least some implementations, a graphic is applied to a surface of an object by ablating layers of the object to form an ablation trench in the shape of the graphic. In at least some embodiments, an object can include a surface layer and multiple sublayers of materials. When an ablation trench is generated in the object, the ablation trench can penetrate a surface layer of the object and into an intermediate layer. In at least some implementations, height variations in an object surface caused by an ablation trench can cause variations in light reflection properties such that a graphic applied via the ablation trench appears at a different color tone than a surrounding surface, even if the ablation trench and the surrounding surface are coated with a same colored coating.
    Type: Application
    Filed: March 4, 2013
    Publication date: September 4, 2014
    Applicant: MICROSOFT CORPORATION
    Inventors: Mark Thomas McCormack, Raj N. Master, Michael Joseph Lane, Krishna Darbha, Ralf Groene, James Alec Ishihara, Joshua James Fischer
  • Patent number: 8804495
    Abstract: Carrier sense multiple access (CSMA) for multiple user, multiple access, and/or MIMO wireless communications. In wireless communication systems that operate in supporting communications via one or more clusters, appropriate determination of when to begin making such transmissions on one or more clusters is made in accordance with intelligent carrier sense multiple access (CSMA) that may be performed in a number of different ways. In accordance with this, a cluster may be any combination composed of one or more channels among one or more bands. In supporting multi-cluster access, CSMA may be performed in selecting a primary cluster and performing backoff (e.g., countdown) thereon. After backoff is finished for the primary cluster, and the availability of one or more others clusters is checked, transmissions may be made using the available clusters. Alternatively, backoff may be made for each or multiple (a subset of) clusters or even individually for each respective cluster.
    Type: Grant
    Filed: June 15, 2010
    Date of Patent: August 12, 2014
    Assignee: Broadcom Corporation
    Inventors: Peiman Amini, Matthew James Fischer, Vinko Erceg, Joonsuk Kim, Joseph Paul Lauer
  • Publication number: 20140213273
    Abstract: Techniques for localized dynamic channel allocation help meet the challenges of latency, memory size, and channel time optimization for wireless communication systems. As examples, advanced communication standards, such as the WiGig standard, may support wireless docking station capability and wireless streaming of high definition video content between transmitting and receiving stations, or engage in other very high throughput tasks. The techniques help to deliver the desired user experience in such an environment and support desired performance levels for latency and throughput while controlling memory footprint.
    Type: Application
    Filed: April 1, 2014
    Publication date: July 31, 2014
    Applicant: BROADCOM CORPORATION
    Inventors: Hongyu Xie, Srikanth Shubhakoti, Matthew James Fischer, Shawn Shiliang Ding, Gang Lu, Yuan Zhuang, Brima Ibrahim, Payam Torab Jahromi, Murat Mese
  • Patent number: 8783177
    Abstract: A system for oscillating a roller driven by rolling contact with a moving substrate. An oscillating assembly comprises first and second opposed gudgeons rotatably mounted on a shaft, the gudgeons being connected by either a plurality of rods or the roller. An oscillation mechanism comprises a reduction transmission assembly having differently toothed input and output pulleys. A cam groove in an oscillation cam is engaged by one or more oscillation pin(s) connected to the gudgeons. An input drive pulley turns with the gudgeons, and an output pulley turns with the oscillation cam. An intermediate double-pulley has second and third pulleys on a common hub. First and second timing belts connect, respectively, the input pulley to the second hub pulley, and the third hub pulley to the output pulley. A currently preferred step-down ratio between the input pulley and the output pulley is about 391:1.
    Type: Grant
    Filed: October 19, 2011
    Date of Patent: July 22, 2014
    Inventors: Brian Giardino, Ronald Sweet, James Fischer, Gary Larsen