Patents Represented by Attorney O'Keefe, Egan, Peterman, Enders, LLP
  • Patent number: 8330931
    Abstract: A device for controlling the polarization state of transmitted light comprises first and second cell walls enclosing a layer of a chiral liquid crystal material. The material has a uniformly orientated helical axis in the absence of an applied field, and electrodes for applying an electric field substantially normal to the helical axis. An applied electric field flexoelectrically couples to the molecules, causing distortion of the helical structure and hence changes the bulk birefringence of the cell.
    Type: Grant
    Filed: July 4, 2005
    Date of Patent: December 11, 2012
    Assignee: Cambridge Enterprise Limited
    Inventors: Harry J. Coles, Marcus J. Coles, Benjamin J. Broughton, Stephen M. Morris
  • Patent number: 8322118
    Abstract: Systems and methods for packaging information handling systems such as notebook computers. Information handling systems may be configured in a bulk shipping configuration to allow multiple information handling system units to be shipped in a bulk configuration, and then converted to a single pack shipping configuration to allow an individual information handling system to be shipped separately and alone, or vice-versa.
    Type: Grant
    Filed: July 13, 2009
    Date of Patent: December 4, 2012
    Assignee: Dell Products L.P.
    Inventors: Orin Ozias, Kevin Mundt
  • Patent number: 8319782
    Abstract: Systems and methods for providing scalability of multiple graphic processor units (GPU) that work together in a multi-coprocessor fashion to provide parallel graphics rendering methodology for an information handling system. The total number of active GPUs working together to provide parallel graphics rendering methodology for a given information handling system may be increased in a modular manner beyond one or two GPUs, e.g., so as allow as many GPUs as desired to be attached to a given information handling system such as a desktop computer or notebook computer.
    Type: Grant
    Filed: July 8, 2008
    Date of Patent: November 27, 2012
    Assignee: Dell Products, LP
    Inventors: Mark A. Casparian, Frank C. Azor, Brian P. Cooper, Jeffrey A. Cubillos, Kevin P. O'Neill, Asif Rehman, Chris S. Wetzel
  • Patent number: 8313970
    Abstract: Low temperature, multi-layered, planar microshells for encapsulation of devices such as MEMS and microelectronics. The microshells include a planar perforated pre-sealing layer, below which a non-planar sacrificial layer is accessed, and a sealing layer to close the perforation in the pre-sealing layer after the sacrificial material is removed. In an embodiment, the pre-sealing layer has perforations formed with a damascene process to be self-aligned to the chamber below the microshell. The sealing layer may include a nonhermetic layer to physically occlude the perforation and a hermetic layer over the nonhermetic occluding layer to seal the perforation. In a particular embodiment, the hermetic layer is a metal which is electrically coupled to a conductive layer adjacent to the microshell to electrically ground the microshell.
    Type: Grant
    Filed: January 31, 2011
    Date of Patent: November 20, 2012
    Assignee: Silicon Laboratories Inc.
    Inventors: Emmanuel P. Quevy, Pezhman Monadgemi, Roger T. Howe
  • Patent number: 8307222
    Abstract: The number of battery cells connected together in a main battery conductor path of a multiple cell battery system of an information handling system may be varied in real time based on one or more operating conditions (e.g., system load power consumption, battery cell failure, etc.) of the information handling system. Defective battery cells may be bypassed such that the defective battery system may continue to operate and power an information handling system at a lower voltage, e.g., either temporarily, permanently or temporarily until the user procures a suitable replacement battery system. Interconnection of cells of a non-defective multiple cell battery system may also be selectively re-arranged to vary battery system voltage at particular times or during particular information handling system operation modes.
    Type: Grant
    Filed: September 25, 2009
    Date of Patent: November 6, 2012
    Assignee: Dell Products, LP
    Inventors: Ligong Wang, Qing Wei Zhu, Qing Shun Yang, Wei Jian Zhu
  • Patent number: 8301106
    Abstract: Stacked CMOS power amplifier (PA) and radio frequency (RF) coupler devices and related methods are disclosed. The stacked device includes a CMOS PA die configured to receive a transmit input signal and to output an amplified transmit signal, and a RF coupler device configured to receive the amplified transmit signal, to output an antenna transmit signal, and to output an RF signal proportional to the antenna transmit signal. The CMOS PA die and the RF coupler device are stacked on top of and electrically coupled to each other, and the CMOS PA die and the RF coupler device are combined within a single semiconductor package. In some embodiments, the RF coupler device is positioned on top of the CMOS PA die, and in other embodiments the CMOS PA die is positioned on top of the RF coupler device.
    Type: Grant
    Filed: February 10, 2010
    Date of Patent: October 30, 2012
    Assignee: Javelin Semiconductor, Inc.
    Inventor: Abhay Misra
  • Patent number: 8298140
    Abstract: Features indicative of hypoglycaemia in EEG signals are detected by: —dividing EEG signals into a sequence of time segments, —for each time segment determining whether a pattern of EEG signals is present which is indicative of hypoglycaemia and, where a pattern of EEG signals indicative of hypoglycaemia is determined to be present in a time segment, recording this as an event, —integrating the number of events recorded during a selected number of preceding time segments which together constitute a selected time period, optionally in a time weighted manner, and—determining that the EEG signals are indicative that hypoglycaemia is present based on said integration when the said integrated number of events exceeds a preset threshold number and/or when there exists a threshold level of matching between a curve of said integration over time and a previously established ideal model of said curve indicative of hypoglycaemia.
    Type: Grant
    Filed: June 7, 2007
    Date of Patent: October 30, 2012
    Assignee: Hypo-Safe A/S
    Inventors: Henning Beck-Nielsen, Rasmus Elsborg Madsen
  • Patent number: 8300406
    Abstract: Support foot apparatus that include a support foot structure that employs flexible flap members disposed on opposing sides of a central foot member, and that are configured for insertion into corresponding openings of a support foot location defined in an exterior surface of the chassis of an information handling system or other device or structure. Each of the flexible flap members may be provided with one or more securing apertures configured for placement over corresponding securing posts provided on an interior surface of the chassis to secure the flexible flap members of the support foot apparatus within the interior of the chassis at a support foot location to hold the central support body against an exterior surface of the chassis.
    Type: Grant
    Filed: March 31, 2010
    Date of Patent: October 30, 2012
    Assignee: Dell Products, L.P.
    Inventors: Hao-Ming Chen, Chih-Tsung Hu, Chung Jen Jo, Jen-Chun Hsu, Wen-Pin Huang
  • Patent number: 8295883
    Abstract: Methods and systems for managing and/or tracking use of SIM smart cards with integrated or external SIM module systems that are utilized with information handling systems. A SIM module system may be locked with a generic locking code to lock a SIM module system of a given information handling system for use with a designated SIM smart card that is programmed with a matching generic locking code. The locked SIM module system of the information handling system may be further configured so that it may be unlocked using an unlocking code so as to allow use of the information handling system with SIM smart cards other than the designated SIM smart card. To allow tracking of the disposition of the designated SIM smart card, notification of the non-activation, de-activation and/or activation of the designated SIM smart card (e.g., to an activation tracking agent) may be required before obtaining the unlocking code, for example, from an activation tracking agent.
    Type: Grant
    Filed: March 30, 2011
    Date of Patent: October 23, 2012
    Assignee: Dell Products LP
    Inventors: Liam N. Prendergast, Denis A. O'Connor, Liam B. Quinn
  • Patent number: 8294610
    Abstract: Interferometric angle-of-arrival (AOA) ambiguities due to local multipath reflections are resolved by measuring the received phase differences of one or more pairs of antenna elements of the interferometer array, constructing hypotheses from unwrapped phase pairs that correspond to potential AOA solutions, and selecting the hypothesis that most likely represents the true AOA of the signal emitter based on processed unwrapped data that has been corrected through the application of a priori calibration terms selected on the bases of the candidate hypotheses.
    Type: Grant
    Filed: April 22, 2010
    Date of Patent: October 23, 2012
    Assignee: L-3 Communications Integrated Systems L.P.
    Inventor: Michael D. Sapp
  • Patent number: 8288835
    Abstract: Microshells including a perforated pre-sealing layer and an integrated getter layer are provided. The integrated getter layer may be disposed between other layers of a perforated pre-sealing layer. The perforated pre-sealing layer may include at least one perforation, and a sealing layer may be provided on the pre-sealing layer to close the perforation.
    Type: Grant
    Filed: January 31, 2011
    Date of Patent: October 16, 2012
    Assignee: Silicon Laboratories Inc.
    Inventors: Emmanuel P. Quevy, Pezhman Monadgemi, Roger T. Howe
  • Patent number: 8280433
    Abstract: Systems and method are disclosed for internal matching and configuration of radio frequency communication modules and antenna systems within a portable information handling system to help alleviate contentions among wireless communication technologies. A database stores operational information associated with wireless communication radio modules and antenna systems. A central control and switching module then matches and configures antenna systems and communication modules based upon stored operational information. The stored information can include device requirements, regional communication requirements, communication protocols and/or any other desired operational information. Flexibility is thereby provided for wireless communications, and worldwide intelligent access is allowed to radio frequency (RF) spectrums while adhering to localized spectrum and regulatory policies.
    Type: Grant
    Filed: May 29, 2007
    Date of Patent: October 2, 2012
    Assignee: Dell Products L.P.
    Inventors: Liam B. Quinn, Alan E. Sicher
  • Patent number: 8280319
    Abstract: A communications device is provided. The communications device includes a first antenna port coupled to a signal line, transmitter circuitry coupled to the signal line and configured to broadcast a radio frequency (RF) output signal across the first antenna port, tuning circuitry coupled to the signal line, and a controller configured to adjust a tuning of the tuning circuitry. The first antenna port, the transmitter circuitry, the tuning circuitry, and the controller are at least partially integrated on the same integrated circuit.
    Type: Grant
    Filed: June 28, 2010
    Date of Patent: October 2, 2012
    Assignee: Silicon Laboratories Inc.
    Inventors: Dan B. Kasha, Aslamali A. Rafi, Abhishek V. Kammula, Peter J. Vancorenland, George T. Tuttle
  • Patent number: 8275073
    Abstract: Methods and systems are disclosed herein for discriminating phase-shift-key (PSK) modulated signals from frequency-shift-key (FSK) modulated signals in received signal streams. First, a bit frequency analysis is applied to a digital signal stream representing the received signal stream. The bit frequency analysis computes bit frequencies for bit segments within the digital signal stream. These bit frequencies are then summed in an array to form a bit frequency histogram. Second, a bit phase analysis is applied to the digital signal stream. The bit phase analysis computes bit phases for bit segments within the digital signal stream. These bit phases are then summed in an array to form a bit phase histogram. Spikes within the bit frequency and bit phase histograms can be used to determine whether the received signal stream includes FSK or PSK signals. An enhanced bit phase analysis can also used, if needed.
    Type: Grant
    Filed: June 11, 2009
    Date of Patent: September 25, 2012
    Assignee: L—3 Communications Integrated Systems, L.P.
    Inventors: Stephen T. Ha, Michael L. Mahaffey, Frank A. Boyle
  • Patent number: 8273594
    Abstract: Low temperature, multi-layered, planar microshells for encapsulation of devices such as MEMS and microelectronics. The microshells include a planar perforated pre-sealing layer, below which a non-planar sacrificial layer is accessed, and a sealing layer to close the perforation in the pre-sealing layer after the sacrificial material is removed. In an embodiment, the pre-sealing layer has perforations formed with a damascene process to be self-aligned to the chamber below the microshell. The sealing layer may include a nonhermetic layer to physically occlude the perforation and a hermetic layer over the nonhermetic occluding layer to seal the perforation. In a particular embodiment, the hermetic layer is a metal which is electrically coupled to a conductive layer adjacent to the microshell to electrically ground the microshell.
    Type: Grant
    Filed: January 31, 2011
    Date of Patent: September 25, 2012
    Assignee: Silicon Laboratories Inc.
    Inventors: Emmanuel P. Quevy, Pezhman Monadgemi, Roger T. Howe
  • Patent number: 8249129
    Abstract: Systems and methods are disclosed that provide ultra-wideband frequency hopping spread spectrum (UWB-FHSS) solutions for transmit and receive architectures. These UWB-FHSS transmit and receive architectures can transmit signals over an extremely wide bandwidth while using a relatively slow analog-to-digital converter (ADC) without suffering from unacceptable performance degradation. For example, ADCs can be used having sample rates lower than standard Nyquist criteria would require for the bandwidth of the spread spectrum utilized.
    Type: Grant
    Filed: October 28, 2008
    Date of Patent: August 21, 2012
    Assignee: L-3 Communications Integrated Systems L.P.
    Inventor: Gerald L. Fudge
  • Patent number: 8249543
    Abstract: Integrated low-IF (low intermediate frequency) data receivers and associated methods are disclosed that provide advantageous and cost-efficient solutions.
    Type: Grant
    Filed: June 30, 2009
    Date of Patent: August 21, 2012
    Assignee: Silicon Laboratories Inc.
    Inventors: G. Tyson Tuttle, Dan B. Kasha
  • Patent number: 8245053
    Abstract: Methods and systems for binding a removable trusted platform module (TPM) subsystem module to an information handling system to provide a core root of trust for the information handling system without requiring soldering down or other hard and permanent (non-removable) attachment of a TPM device to the information handling system planar (e.g., motherboard). The removable TPM subsystem module may be a plug-in module that may be removed from the information handling system planar (e.g., motherboard), while at the same time maintaining the transitive chain of trust, and being capable of remotely attesting its trusted state. An information handling system platform may be provided that has the capability and flexibility of supporting multiple TPMs on the same system planar.
    Type: Grant
    Filed: March 10, 2009
    Date of Patent: August 14, 2012
    Assignee: Dell Products, Inc.
    Inventors: Quy Hoang, Mukund P. Khatri, Pankaj Bishnoi
  • Patent number: D666464
    Type: Grant
    Filed: December 10, 2010
    Date of Patent: September 4, 2012
    Assignee: Easy Gardener Products, Inc.
    Inventor: Douglas E. Austin
  • Patent number: D670867
    Type: Grant
    Filed: December 8, 2011
    Date of Patent: November 13, 2012
    Inventor: Mary Catherine Niemeyer