Patents Represented by Attorney Garlick Harrison & Markison
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Patent number: 8064873Abstract: A transceiver for a RFID reader and a transceiver for a RFID transponder (tag) allow communication between the two devices. The RFID reader utilizes an analog front end and a digital backend. In the receiver portion of the transceiver, the front end of the RFID reader uses a pair of down-conversion mixers to demodulate a received signal into in-phase (I) and quadrature (Q) components and analog-to-digital converters (ADC) digitize the signal. A digital signal processor (DSP) in the back end processes the digital signal and uses a matched filter for data detection. The RFID tag receives an inductively coupled signal from the reader and the receiver portion of the tag uses a pulse/level detector that employs an analog comparator and a sample and hold circuit to detect the received signal. A digital decoder/controller is used to decode the incoming data and to establish a sampling clock for the pulse/level detector.Type: GrantFiled: January 28, 2011Date of Patent: November 22, 2011Assignee: Broadcom CorporationInventors: Jiangfeng Wu, Donald Edward Major
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Patent number: 8064842Abstract: An RF integrated circuit (IC) includes a first IC port for coupling a first transmit signal in a first frequency band to at least one external device and a second IC port for coupling a second transmit signal in a second frequency band to the at least one external device. A transmitter module responds to outbound data to generate the first transmit signal in a first mode of operation and to generate the second transmit signal in a second mode of operation, wherein the transmitter module generates the first transmit signal and the second transmit signal in a selected one of a plurality of wireless telephony formats based on a control signal, and wherein the plurality of wireless telephony formats includes a GSM format and at least one non-GSM format.Type: GrantFiled: April 11, 2011Date of Patent: November 22, 2011Assignee: Broadcom CorporationInventors: Theodoros Georgantas, Konstantinos D. Vavelidis, Sofoklis Plevridis, Ilias Bouras
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Patent number: 8063769Abstract: A dual band antenna includes a far field antenna structure for facilitating the communication of first data with a remote device via far field signaling in a millimeter wave band. A near field antenna structure facilitates the communication of second data with a remote device via near field signaling in a near field band. The far field antenna structure and the near field antenna structure share at least one common antenna element.Type: GrantFiled: September 15, 2008Date of Patent: November 22, 2011Assignee: Broadcom CorporationInventor: Ahmadreza Reza Rofougaran
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Patent number: 8064533Abstract: A wireless transceiver includes a plurality of antennas. A plurality of signal recovery circuits generate a selected number of received signals from a first subset of the plurality of antennas, based on a control signal. A receiver section recovers an inbound data stream from the selected number of received signals. A plurality of transmitter sections generate a selected number of transmitted signals to a second subset of the plurality of antennas, based on the control signal, wherein the intersection between the first subset of the plurality of antennas and the second subset of the plurality of antennas is the null set for each value of the control signal.Type: GrantFiled: September 15, 2008Date of Patent: November 22, 2011Assignee: Broadcom CorporationInventor: Ahmadreza (Reza) Rofougaran
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Patent number: 8064955Abstract: A device includes an on-chip gyrating circuit that generates a motion parameter based on motion of the device. An RF transceiver generates an outbound RF signal from an outbound symbol stream, transmits the outbound RF signal to a remote station of a wireless network, and generates an inbound symbol stream from an inbound RF signal received from the at least one remote station. A processing module processes the motion parameter to produce motion data, converts outbound data into the outbound symbol stream, converts the inbound symbol stream into inbound data, compares current motion data to past motion data, detects when a difference between the current motion data and the past motion data compares unfavorably to a motion change threshold, and include the motion data in the outbound data when the difference between the current motion data and the past motion data compares unfavorably to the motion change threshold.Type: GrantFiled: April 20, 2011Date of Patent: November 22, 2011Assignee: Broadcom CorporationInventor: Ahmadreza (Reza) Rofougaran
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Patent number: 8064867Abstract: A dual-band input transceiver block is formed to operably receive one of a 2.4 GHz radio frequency signal or a 5.0 GHz radio frequency transceiver signal in a manner that minimizes duplication of circuitry and creates a combined circuit path for RF front end input stages for much of the input stage. More specifically, the embodiments of the present invention include separate amplification and mixing stages whose outputs are combined by a stabilized load with circuitry for removing a common mode feedback signal. As such, downstream components, such as amplifiers, filters, analog-to-digital converters, and other input path circuit elements, are not duplicated and may be used regardless of whether the dual-band transceiver is operating in a first or second frequency band. Operation is, in the described embodiment, only one frequency input at a time though the invention is not limited to such operation.Type: GrantFiled: June 10, 2008Date of Patent: November 22, 2011Assignee: Broadcom CorporationInventors: Qiang (Tom) Li, Hooman Darabi
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Patent number: 8062133Abstract: The position of a mobile gaming object within a video gaming environment is determined using at least one combined Radio Frequency (RF) signal. Each combined RF signal includes at least a pair of RF signals that have a known relationship therebetween. Based on signal information representative of properties of the combined RF signal as received and the known relationship, respective distances between the mobile gaming object and a plurality of transmitter/receivers can be determined. The position of the mobile gaming object within the video gaming environment is then determined from the distances.Type: GrantFiled: June 19, 2008Date of Patent: November 22, 2011Assignee: Broadcom CorporationInventors: Ahmadreza (Reza) Rofougaran, Maryam Rofougaran, Nambirajan Seshadri, Brima B. Ibrahim, John Walley, Jeyhan Karaoguz
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Patent number: 8060029Abstract: An antenna includes a planar antenna section. A resonator grid includes a plurality of resonators in a planar array to electromagnetically enhance the performance of the plan antenna section.Type: GrantFiled: May 19, 2009Date of Patent: November 15, 2011Assignee: Broadcom CorporationInventor: Ahmadreza (Reza) Rofougaran
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Patent number: 8059740Abstract: A wireless local area network (WLAN) transmitter includes a baseband processing module and a plurality of radio frequency (RF) transmitters. The baseband processing module is operably coupled to process data by scrambling the data in accordance with a pseudo random sequence to produce scrambled data. The processing of the data continues by selecting one of a plurality of encoding modes based on a mode selection signal. The processing of the data continues by encoding the scrambled data in accordance with the one of the plurality of encoding modes to produce encoded data. The processing of the data continues by determining a number of transmit streams based on the mode selection signal. The processing of the data further continues by converting the encoded data into streams of symbols in accordance with the number of transmit streams and the mode selection signal.Type: GrantFiled: May 28, 2004Date of Patent: November 15, 2011Assignee: Broadcom CorporationInventors: Christopher J. Hansen, Jason A. Trachewsky, Nambirajan Seshadri, Kelly Brian Cameron, Hau Thien Tran, Ba-Zhong Shen
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Patent number: 8055707Abstract: Information from communications is displayed in a calendar format. Text from the communications is used to determine whether a scheduling entry should be created. If so, text from the communication is used to create a proposed calendar or to-do list entry, which can be saved, modified or canceled by the user. Information from a call log can be filtered and displayed in a calendar format.Type: GrantFiled: November 30, 2005Date of Patent: November 8, 2011Assignee: Alcatel LucentInventors: Snehal Desai, Jack Jachner, Atiya Suhail, Kashipati G. Rao
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Patent number: 8055207Abstract: A receiver includes a plurality of RF receiver modules, a plurality of analog baseband sections, a plurality of analog to digital conversion sections, and a digital baseband processing module. The RF receiver modules convert inbound RF signals into a plurality of inbound analog signals. When the receiver is in a first mode, one of the plurality of analog baseband sections is active to adjust one of the plurality of inbound analog signals to produce an adjusted inbound analog signal; one of the plurality of analog to digital conversion sections converts the adjusted inbound analog signal into an inbound digital signal; and a portion of the digital baseband processing module is active to convert the inbound digital signal into inbound data.Type: GrantFiled: May 30, 2007Date of Patent: November 8, 2011Assignee: Broadcom CorporationInventors: Arya Reza Behzad, Rohit V. Gaikwad
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Patent number: 8055671Abstract: In most of the Internet search operations, unwanted search results can be eliminated to reduce the high volume of the Internet traffic, and make the search operation highly efficient, according to the present invention. The present invention proposes a two step approach. The first step is to achieve the high relevance of the search results by search region restricted search operation. The second step, further adds high degree of relevance to the search results by the contact address correlation with a reliable reference address or the legitimate contact address eliminating the spurious and unwanted sites from the search result list. The region restricted search does searching in a selected geographical region. Thus the region restricted search operation minimizes the search time and huge volume of Internet traffic, which is likely to impair the overall Internet performance.Type: GrantFiled: August 29, 2007Date of Patent: November 8, 2011Assignee: Enpulz, LLCInventor: James D. Bennett
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Patent number: 8055129Abstract: An algorithm is disclosed for performing alien-wavelength channel balancing on channels between optical network elements within an optic-fiber communications system. The algorithm determines initial values of various optimization parameters for each of the channels, such as the input launch power and operating conditions of optical amplifiers in the optical path, and calculates an initial total optimization offset for the channels based on the initial values of the optimization parameters for each of the channels. The algorithm then adjusts the optimization parameters to new values and calculates a new total optimization offset based on the new optimization parameter values. The algorithm repeats this process until the relative channel launch powers and optical amplifiers are optimized.Type: GrantFiled: May 7, 2008Date of Patent: November 8, 2011Assignee: Alcatel LucentInventors: David Butler, Lev B. Sofman
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Patent number: 8050237Abstract: Apparatus and method to process a pilot channel and a synchronization channel to obtain a combined noise estimate of the pilot channel and the synchronization channel that is synchronized to the pilot channel. The combined noise estimation is processed to determine a first noise component for a period when both the pilot channel and the synchronization channel are present. Then, the combined noise estimate is processed to determine a second noise component for a period when only the pilot channel is present. Next, the second noise component is subtracted from the first noise component to derive a noise estimation for the synchronization channel. The technique may be applied to the Common Pilot Channel (CPICH), and the Synchronization Channel (SCH) defined in a 3rd Generation Partnership Project standard specification.Type: GrantFiled: December 24, 2007Date of Patent: November 1, 2011Assignee: Broadcom CorporationInventors: Hongwei Kong, Jun Wu
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Patent number: 8050234Abstract: A cellular wireless communication system and method of operation manages Walsh codes in order to ensure that sufficient Walsh codes are available to prevent call blocking and to support additional hand-off operations. In an initial operating condition, the cellular wireless communication system services normal hand-off operations in which a maximum number of cells and sectors may participate in hand-off. With hand-off operations according to the present invention, each cell or sector participating in hand-off for a mobile terminal uses a unique Walsh code for covering its forward link signals. When the number of Walsh codes available for servicing new calls is reduced so that it meets or exceeds a Walsh code availability threshold, the number of cells and sectors that may participate in hand-off is reduced from the maximum number. In the number of participating cells/sectors results in release or non-use of some Walsh codes.Type: GrantFiled: May 22, 2009Date of Patent: November 1, 2011Assignee: Ericsson ABInventors: Chang-Gang Zhang, Farhad Bassirat, Martin Kendall
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Patent number: 8049676Abstract: A planer antenna structure includes a first planer antenna and a second planer antenna. The first planer antenna has a first axial orientation and a conductive antenna pattern on a first surface of a supporting substrate. The second planer antenna has a second axial orientation and the conductive antenna pattern on the first surface of the supporting substrate.Type: GrantFiled: November 26, 2008Date of Patent: November 1, 2011Assignee: Broadcom CorporationInventors: Seunghwan Yoon, Franco De Flaviis, Ahmadreza (Reza) Rofougaran
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Patent number: 8050330Abstract: An integrated receiver with multiple, independently synchronized clock signals for multiple channel transport stream decoding and delivery substantially implemented on a single CMOS integrated circuit is described. An integrated circuit that services two satellite programs must generate and distribute corresponding time domain clocks to the various components of the integrated circuit. The transport block that receives one or more satellite signals from a demodulating block will extract program clock recover values from each signal being decoded and use these values to produce an error signal or control word that serves as an input to a clock generator. Based upon this input, the clock circuit will produce a corresponding time domain clock for each channel serviced by the integrated circuit. The output of the clock circuit is distributed to the various processing blocks within the integrated circuit that operate upon channel content received and processed by the transport block.Type: GrantFiled: May 17, 2007Date of Patent: November 1, 2011Assignee: Broadcom CorporationInventors: Jason Demas, Honman Law, David Baer, Brian Schoner
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Patent number: 8045852Abstract: An algorithm is disclosed for performing channel balancing on channels between optical network elements within an optic-fiber communications system. The algorithm groups at least a portion of the channels into channel pairs, differentially adjusts the transmitter output power level of each of the channel pairs until the bit error ratio (BER) of at least one channel in each of the channel pairs exceeds a threshold, and records a respective power margin for each of the channels as the difference between the initial and final power levels. From the recorded power margins, a mean power margin is determined that is used to shift the transmitter output power level of each of the channels.Type: GrantFiled: April 23, 2008Date of Patent: October 25, 2011Assignee: Alcatel LucentInventors: David Butler, Carlton Brown
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Patent number: 8045525Abstract: Provided is a method and apparatus for handover data integrity of a mobile station in a wireless data network with a plurality of wireless network service areas. The method and apparatus includes initiation of a handover by a mobile station, identifying at least one target access network (ASN) for handover from a serving ASN that services wireless data communications with the mobile station. When at least one target ASN is identified, receiving a data integrity capability from the at least one target ASN. With the received data integrity capability, determining whether a direct data delivery mode is available as a data integrity mode based upon the received data integrity capability. When the direct data delivery mode is available as a data integrity mode, direct data delivery if performed with the data associated with the service flow from the serving ASN to the at least one target ASN.Type: GrantFiled: October 2, 2008Date of Patent: October 25, 2011Assignee: Nortel Networks, LimitedInventors: Chandra Sekhar Bontu, Prabaharan Kanesalingam, Devaki Chandramouli
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Patent number: 8041386Abstract: An integrated circuit (IC) includes a baseband processing module and a radio frequency (RF) section. The baseband processing module is coupled to convert outbound data or an outbound voice signal into at least one of amplitude modulation information, phase modulation information, and frequency modulation information. The RF section includes an oscillation module, a frequency divider, and power amplifier modules. The oscillation module produces an RF oscillation that it modulates based on the phase or frequency modulation information to produce a modulated RF signal. The frequency divider divides the frequency of the modulated RF signal to produce a frequency divided modulated RF signal. The first power amplifier module amplifies the modulated RF signal in accordance with the amplitude modulation information or a constant to produce a first frequency band outbound RF data or voice signal.Type: GrantFiled: February 17, 2011Date of Patent: October 18, 2011Assignee: Broadcom CorporationInventor: Ahmadreza (Reza) Rofougaran