Convertible To Different Type (e.g., Am To Fm) Patents (Class 455/142)
  • Patent number: 10159029
    Abstract: A communication system facilitates a voice communication session for a wireless communication device. A Long Term Evolution (LTE) network exchanges Voice over LTE (VoLTE) communications with the wireless communication device for the voice communication session and determines LTE packet loss metrics for the voice communication session. The LTE network transfers the voice communication session to a Wireless Fidelity (WIFI) network. The WIFI network exchanges Voice over WIFI (VoWIFI) communications with the wireless communication device for the voice communication session and determines WIFI packet loss metrics for the voice communication session. A network controller compares the LTE packet loss metrics with the WIFI packet loss metrics to determine a packet loss configuration for the WIFI network. The network controller transfers a packet loss instruction to the WIFI network.
    Type: Grant
    Filed: September 8, 2017
    Date of Patent: December 18, 2018
    Assignee: Sprint Communications Company L.P.
    Inventors: Amar Nath Ray, James Patrick Sisul, Tracy Lee Nelson
  • Patent number: 9954628
    Abstract: An audio/video (A/V) hub that determines an environment of a portable electronic device is described. In particular, the A/V hub may identify the environment based on performance information about communication between the portable electronic device and receiver devices (which was received from the receiver devices), and a history of behavior of an individual associated with the portable electronic device and the A/V hub. Alternatively, the A/V hub may identify the environment based on performance information about communication between the portable electronic device and the A/V hub and the portable electronic device and another A/V hub (which was received from the portable electronic device and/or the other A/V hub), and a history of behavior of an individual associated with the portable electronic device and the A/V hub. Based on the determination, the A/V hub provides an instruction to power on an A/V display device in the environment.
    Type: Grant
    Filed: November 19, 2017
    Date of Patent: April 24, 2018
    Assignee: Eva Automation, Inc.
    Inventor: Gaylord Yu
  • Patent number: 9831962
    Abstract: An audio/video (A/V) hub that determines an environment of a portable electronic device is described. In particular, the A/V hub may identify the environment based on performance information about communication between the portable electronic device and receiver devices (which was received from the receiver devices), and a history of behavior of an individual associated with the portable electronic device and the A/V hub. Alternatively, the A/V hub may identify the environment based on performance information about communication between the portable electronic device and the A/V hub and the portable electronic device and another A/V hub (which was received from the portable electronic device and/or the other A/V hub), and a history of behavior of an individual associated with the portable electronic device and the A/V hub. Based on the determination, the A/V hub provides an instruction to power on an A/V display device in the environment.
    Type: Grant
    Filed: May 29, 2017
    Date of Patent: November 28, 2017
    Assignee: EVA Automation, Inc.
    Inventor: Gaylord Yu
  • Patent number: 9190957
    Abstract: In an embodiment, an apparatus includes a first signal path to receive and process a radio frequency (RF) signal of a first band and which has a first programmable digitizer to convert the RF signal of the first band into a digitized signal without downconversion. In addition, the apparatus further includes a second signal path to receive and process an RF signal of a second band, where at least portions of one or more of the paths may be shared during operation in the different bands.
    Type: Grant
    Filed: June 18, 2013
    Date of Patent: November 17, 2015
    Assignee: Silicon Laboratories Inc.
    Inventors: Mark May, Carlos Briseno-Vidrios, Junsong Li
  • Patent number: 9100682
    Abstract: Disclosed herein is a terrestrial broadcasting receiving module including: an antenna receiving a wireless signal; a distributing unit distributing and outputting the wireless signal into a wireless signal including a VHF band signal and a wireless signal including a UHF band signal; a VHF processing unit generating and outputting a VHF intermediate frequency signal from the wireless signal including the VHF band signal; a UHF processing unit generating and outputting a UHF intermediate frequency signal from the wireless signal including the UHF band signal; and a demodulating unit demodulating the VHF intermediate frequency signal output from the VHF processing unit and the UHF intermediate frequency signal output from the UHF processing unit. Therefore, a manufacturing cost may be reduced, switching loss may be prevented.
    Type: Grant
    Filed: August 30, 2011
    Date of Patent: August 4, 2015
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Yong Bum Lee, Jong Lae Kim
  • Patent number: 9048547
    Abstract: Systems and methods are disclosed for shared AM/FM air loop antennas that may be advantageously implemented to provide a AM/FM receiver system with a single common air loop antenna for receiving both AM and FM channels, thus eliminating the need for additional materials and electronics associated with provision of a separate FM pigtail antenna and FM antenna jack for connection of same. The shared AM/FM air loop antennas may be connected to a radio device having antenna connections.
    Type: Grant
    Filed: June 11, 2013
    Date of Patent: June 2, 2015
    Assignee: Silicon Laboratories Inc.
    Inventors: Ligang Zhang, Chengzhou Lin
  • Patent number: 8918051
    Abstract: A mobile device includes a first interface module, a second interface module, and a control module. The first interface module is configured to interface the mobile device to a first wireless network and to receive data from a transmitting device via the first wireless network. The second interface module is configured to interface the mobile device to a second wireless network. The control module is configured to determine based on the data received when to switch a link to the transmitting device from the first wireless network to the second wireless network. The control module is further configured to transmit a message that informs the transmitting device not to transmit the data to the mobile device via the first wireless network in response to the link being switched to the second wireless network.
    Type: Grant
    Filed: February 3, 2010
    Date of Patent: December 23, 2014
    Assignee: Marvell International Ltd.
    Inventors: Lu Chang, Paul A. Lambert
  • Patent number: 8886141
    Abstract: Provided is a semiconductor device that is capable of performing background calibration during a reception operation without adversely affecting reception characteristics. During a reception operation, the semiconductor device detects a timing at which an invalid received signal occurs upon a gain change or a reception channel change and performs background calibration at the detected timing. In this instance, as the received signal is invalid, performing the calibration does not further decrease the substantial accuracy of reception. Moreover, an unnecessary signal component, which would arise when the background calibration is performed at fixed intervals, will not be generated as far as the background calibration is performed at random timing.
    Type: Grant
    Filed: October 22, 2012
    Date of Patent: November 11, 2014
    Assignee: Renesas Electronics Corporation
    Inventors: Hideo Nakane, Keisuke Kimura, Takaya Yamamoto, Tatsuji Matsuura, Ryuichi Ujiie
  • Patent number: 8843091
    Abstract: A radio communication system includes: a receiver that is configured to receive a first radio wave sent according to a remote keyless entry system and a second radio wave sent according to a tire pressure monitoring system; and a reception mode switching unit that sets a reception mode of the receiver to a first reception mode, in which the first radio wave is received, when an ignition switch of a vehicle is off, and sets the reception mode to a second reception mode, in which the second radio wave is received, when the ignition switch of the vehicle is on. If the reception mode switching unit receives a first request to set the reception mode to the first reception mode while the reception mode is set to the second reception mode, the reception mode switching unit sets the reception mode to the first reception mode.
    Type: Grant
    Filed: July 24, 2012
    Date of Patent: September 23, 2014
    Assignees: Toyota Jidosha Kabushiki Kaisha, Denso Corporation
    Inventors: Hiroko Murakami, Arinobu Kimura, Noriaki Okada
  • Publication number: 20140273898
    Abstract: A regenerative selective logarithmic detector amplifier (LDA) can have integrated FM demodulation capabilities. It can receive a wired or wireless FM modulated signal and amplify or demodulate it with high sensitivity, high skirt ratio and minimized noise when compared to the prior art. When used in conjunction with other circuits such as a PLL or mixer, it can improve interference rejection and frequency selectivity and be locked on a precise channel in frequency and phase. The LDA produces intermittent oscillations that are self-quenched when reaching a given threshold. It also embeds the circuitry to perform direct FM discrimination. FM demodulation process is completed by a simple analog or digital frequency to voltage converter. This plus the fact that the instantaneous regeneration gain is low-medium permit to detect signals of small amplitudes buried in the noise.
    Type: Application
    Filed: March 14, 2014
    Publication date: September 18, 2014
    Inventors: Forrest Brown, Patrick Rada, Alexandre Dupuy
  • Patent number: 8818308
    Abstract: A multi-tuner apparatus comprises a splitter (S) for received RF signals. The splitter has a splitter output (U) for connection to a plurality of tuners. To reduce signal degradation and dissipation the output impedance of the splitter output is substantially lower than the input impedance of each of the tuners.
    Type: Grant
    Filed: August 15, 2006
    Date of Patent: August 26, 2014
    Assignee: NXP, B.V.
    Inventors: Jan Van Sinderen, Francois Seneschal, Jacques Potier
  • Patent number: 8811906
    Abstract: The present technology provides an apparatus and a method for transmitting data via two or more FM signals in an interference avoiding manner. The apparatus comprises at least two FM transmitters. Each FM transmitter is configured to transmit a FM signal on a particular FM channel characterized by a certain carrier frequency that includes data and optionally one or more corresponding alternative frequencies (AFs). The apparatus further includes at least two receivers for receiving incoming electromagnetic radiation (EMR). At least one of the receivers is configured to receive incoming EMR associated with at least one of the FM channels, and another is configured to receive incoming EMR at least at frequencies outside of the FM channels. The controller is configured to separately control activation and deactivation of the FM transmitters and determine the carrier frequencies and the one or more AFs based upon incoming EMR.
    Type: Grant
    Filed: May 13, 2011
    Date of Patent: August 19, 2014
    Assignee: Sierra Wireless, Inc.
    Inventors: Ashish Syal, Roderick David Earle Filer, Behrouz Pourseyed, Steven John Bennett
  • Publication number: 20140220917
    Abstract: A multimode rake receiver comprise a common antenna interface, arranged to at least receive in a first mode a first CDMA radio channel carrying information encoded according to a first baseband modulation standard and to receive in a second mode a second CDMA radio channel carrying information encoded according to a second baseband modulation standard; and a common signal processing path, at least arranged to process in the first mode the first CDMA radio channel and in the second mode the second CDMA radio channel, wherein the common signal path comprises a common descrambling and de-spreading unit and a common hybrid code generating unit arranged to provide to the common descrambling and de-spreading unit chip codes applicable in the first mode to the first CDMA radio channel and in the second mode to the second CDMA radio channel.
    Type: Application
    Filed: October 19, 2011
    Publication date: August 7, 2014
    Applicant: FREESCALE SEMICONDUCTOR, INC.
    Inventors: Guy Drory, Eliya Babistky, Ron Bercovich
  • Patent number: 8781433
    Abstract: A semiconductor device is provided with a power supply circuit having a function to generate a power supply voltage from a wireless signal and an A/D converter circuit having a function to detect the strength of the wireless signal by an A/D conversion of a voltage generated from the wireless signal. This enables to provide a semiconductor device which does not require replacement of batteries, has few limitations on its physical shape and mass, and has a function to detect a physical position. By formation of the semiconductor device with use of a thin film transistor formed over a plastic substrate, a lightweight semiconductor device, which has flexibility in physical shape and a function to detect a physical location, can be provided at low cost.
    Type: Grant
    Filed: February 8, 2012
    Date of Patent: July 15, 2014
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Yoshiyuki Kurokawa, Takayuki Ikeda, Masami Endo, Hiroki Dembo, Daisuke Kawae, Takayuki Inoue, Munehiro Kozuma
  • Patent number: 8644427
    Abstract: A radio frequency receiver with dual band reception and dual analog-to-digital converters (ADCs) can be configured to operate in a single channel mode or a dual channel mode to receive a single RF input channel or two RF input channels at the same or different frequency bands. In the single channel mode, the dual ADCs can be used to improve the performance of the receiver for the single input signal or the dual ADCs can be configured for reduced power consumption. In the dual channel mode, the dual ADCs operate on the individual RF input signals to realize dual band reception. In one embodiment, the receiver is configured for asymmetric dual band reception to receive a wideband input signal on a first input signal path and a narrow band input signal on a second input signal path.
    Type: Grant
    Filed: August 10, 2011
    Date of Patent: February 4, 2014
    Assignee: SiGear Europe Sarl
    Inventors: Alain-Serge Porret, Friederich Mombers, Melly Thierry
  • Patent number: 8634786
    Abstract: Provision of gigabit-rate data transmission over wireless radio links, using carrier frequencies in the millimeter-wave range (>30 GHz). More specifically, a circuit for detection of amplitude-shift keyed (ASK) or other amplitude modulations (AM) which can be easily incorporated into an integrated circuit receiver system is described, making the receiver capable of supporting both complex IQ modulation schemes and simpler, non-coherent on-off or multiple-level keying signals. Several novel radio architectures are also described which, with the addition of a frequency discriminator network, have the capability of handling frequency shift keyed (FSK) or other frequency modulations (FM), as well as AM and complex IQ modulation schemes. These radio architectures support this wide variety of modulations by efficiently sharing detector hardware components.
    Type: Grant
    Filed: August 20, 2012
    Date of Patent: January 21, 2014
    Assignee: International Business Machines Corporation
    Inventors: Troy J. Beukema, Scott K. Reynolds
  • Patent number: 8503944
    Abstract: A signal detection apparatus 23 for determining whether a detection target signal is included in a received radio signal, includes: a waveform feature amount calculation unit 31 configured to calculate a waveform feature amount Rx? representing a waveform feature; a test statistic calculation unit 32 configured to calculate test statistic Zx? of each detection target signal by using the waveform feature amount; and a signal decision unit 33 configured to determine presence or absence of each detection target signal by comparing the test statistic Zx? of each detection target signal with a threshold ?, wherein, under a condition where a specific detection target signal is removed, the test statistic calculation unit calculates a test statistic for a detection target signal which is not removed, and the signal decision unit determines presence or absence of the detection target signal by comparing the calculated test statistic with the threshold.
    Type: Grant
    Filed: December 22, 2010
    Date of Patent: August 6, 2013
    Assignee: NTT DoCoMo, Inc.
    Inventors: Hiroki Harada, Hiromasa Fujii, Shunji Miura, Tomoyuki Ohya
  • Patent number: 8503929
    Abstract: Certain aspects of a method and system for providing wireless communication may comprise encoding within a single chip, FM audio data received by a FM radio. The encoded received FM audio data may be translated within the single chip to a Bluetooth compatible format. The translated received FM audio data may be communicated to at least one off-chip Bluetooth enabled device via the Bluetooth radio via at least one of the following: a synchronous connection oriented (SCO) link, an extended SCO (eSCO) link, and an advanced audio distribution profile (A2DP) link. The received FM audio data may be communicated via a dedicated link that couples the FM radio to a PCM interface that handles the encoding.
    Type: Grant
    Filed: November 22, 2005
    Date of Patent: August 6, 2013
    Assignee: Broadcom Corporation
    Inventors: Brima Ibrahim, Mitchell Buznitsky, Angel Polo, John Walley, Theodore A. Trost
  • Patent number: 8442438
    Abstract: A wireless transmitter includes a first filtering unit coupled to a first cable for outputting a first DC source transmitted on the first cable, a first power converting unit for converting the first DC source into a second DC source, a second filtering unit for eliminating noise in the second DC source, a first DC blocking unit for blocking the second DC source and outputting a second frequency modulation (FM) signal, an amplifier for amplifying the second FM signal to generate a first FM signal, and a second DC blocking unit coupled to the amplifier and the first cable, for outputting the first FM signal to the first cable, such that the first FM signal is transmitted to the air through the first cable as a transmitting antenna.
    Type: Grant
    Filed: June 30, 2010
    Date of Patent: May 14, 2013
    Assignee: Wistron NeWeb Corporation
    Inventors: Cheng-Hsiung Hsu, Chung-Wei Hsu, Cheng-Yen Wen, Chun-Chia Kuo
  • Patent number: 8437706
    Abstract: Aspects of a method and system for transmission or reception of signals utilizing a DDFS clocked are provided. A first oscillator signal utilized for transmission and/or reception of signals of a first wireless communication protocol may be generated, and a direct digital frequency synthesizer (DDFS) may be clocked by the first oscillator signal to generate one or more second oscillator signals. The one or more second oscillator signals may be modulated to generate a signal adhering to a second wireless communication protocol. The one or more second oscillator signals may be utilized to demodulate signals of the second wireless communication protocol. A control word input to the DDFS may control a frequency of the one or more second oscillator signals generated by the DDFS. Simultaneous transmission and reception of signals of the second wireless communication protocol may be simulated by switching the control word input to the DDFS between two values.
    Type: Grant
    Filed: April 5, 2011
    Date of Patent: May 7, 2013
    Assignee: Broadcom Corporation
    Inventors: Ahmadreza Rofougaran, Maryam Rofougaran
  • Patent number: 8428512
    Abstract: A method and system sharing a Bluetooth processor for FM functions are provided. The single chip may comprise an integrated Bluetooth radio, an integrated FM radio, and processor system. A processor in the processor system may be utilized for Bluetooth and FM data processing and may time multiplex between the Bluetooth and FM data processing based on interrupt signals. The processor may operate in a low power mode based on a clock signal generated from a low power oscillator. When a Bluetooth interrupt signal is received, the processor may enable Bluetooth data processing that may be based on a Bluetooth clock signal. When an FM interrupt signal is received, the processor may enable FM data processing that may be based on an FM clock signal. When data processing is complete, the processor may return to the low power mode operation.
    Type: Grant
    Filed: November 22, 2005
    Date of Patent: April 23, 2013
    Assignee: Broadcom Corporation
    Inventors: Brima Ibrahim, Mitchell Buznitsky, John Walley, Ahmadreza Rofougaran, Bojko Marholev, Angel Polo, Asif Grushkevich
  • Patent number: 8401462
    Abstract: A media broadcast and distribution system is disclosed which substitutes storage for communications, allowing more efficient use of scarce bandwidth resources. One embodiment allows a terrestrial FM broadcaster to offer a larger number of higher quality audio channels than current satellite radio services such as Sirius and XM Satellite Radio. This embodiment also has features that offer a better user experience than with personal audio devices such as Apple's iPod™. Another embodiment allows satellite radio services to expand their video offerings.
    Type: Grant
    Filed: June 17, 2010
    Date of Patent: March 19, 2013
    Inventor: Martin Edward Hellman
  • Patent number: 8390492
    Abstract: A signal processing apparatus includes: a digital processing unit to which a digital input signal is supplied, which performs a digital process on the digital input signal to produce a digital signal, and which produces a control signal designating a specific time period when an amplitude of an analog output signal is to be lowered; a DA-conversion unit which converts the digital signal to produce an analog signal; and a variable gain unit which adjusts an amplitude of the analog signal to produce the analog output signal, and which lowers the amplitude of the analog output signal during the specific time period designated by the control signal.
    Type: Grant
    Filed: March 24, 2011
    Date of Patent: March 5, 2013
    Assignee: Yamaha Corporation
    Inventor: Takeshi Daishoji
  • Patent number: 8364102
    Abstract: In one embodiment a universal front end module for network communications is disclosed. The module can include a mode controller coupled to components of a transmission path. A first tunable filter on a transmit path can receive a mode control signal from the mode controller and receive a signal to be transmitted and provide a filtered output signal responsive to the mode control signal and the signal to be transmitted. The mode control signal can be associated with a predetermined network protocol such as WiMax, a WiFi, a 3G LTE and a cellular standard where each standard has a predetermined operating frequency and protocol. The module can also include a tunable power amplifier to provide an amplified transmittable signal over a single transmit path can be utilized to transmit the transmittable signal in at least two different modes responsive to the mode controller.
    Type: Grant
    Filed: April 19, 2007
    Date of Patent: January 29, 2013
    Assignee: Intel Corporation
    Inventors: Nader Rohani, Hongtao Xu, Yulin Tan
  • Patent number: 8331464
    Abstract: A method of transmitting data using a generalized phase shift based proceding or an extended phase shift precoding scheme in a multiple-antenna system using a plurality of subcarrier and a transceiver for supporting the same are disclosed. A phase shift based precoding matrix may be generalized and determined by a product of a diagonal matrix for phase shift and a unitary matrix for maintaining orthogonality in spatial domain. The diagonal matrix may be extended by a product of a proceding matrix for increasing channel power and the diagonal matrix for phase shift. The design of the transceiver can be simplified or communication efficiency can be improved by generalizing and extending the phase shift based proceding.
    Type: Grant
    Filed: May 29, 2007
    Date of Patent: December 11, 2012
    Assignee: LG Electronics Inc.
    Inventors: Moon Il Lee, Jae Won Chang, Bin Chul Ihm, Jin Hyuk Jung, Jin Young Chun
  • Patent number: 8295824
    Abstract: A management unit allocates network resources multiservice communication devices capable of communicating via a plurality of networks. The management unit includes a communication device interface for facilitating a bidirectional data communication with the multiservice communication devices via a wireless control channel, the bidirectional data communication including outbound control data sent to multiservice communication devices and inbound control data received from at multiservice communication devices. The wireless control channel is separate from the communication between multiservice communication devices and the networks. A network interface receives network resource data from the networks. A management processing unit generates the outbound control data in response. The management processing unit facilities the handoff of a real-time service accessed by the multiservice communication devices via a first network to a second network.
    Type: Grant
    Filed: April 11, 2012
    Date of Patent: October 23, 2012
    Assignee: Broadcom Corporation
    Inventors: Vinko Erceg, Arya Reza Behzad, David Rosmann, Brima B. Ibrahim, Jeyhan Karaoguz, John Walley
  • Patent number: 8285215
    Abstract: A system and method bringing video to commercial FM and video to Sub-Carrier Authorization programming, the system would make use of a Double Sideband Suppress Carrier SCA frequency at 67 kHz, modulated by a Slow San Video Converter for providing minute by minute snap shots of video related to the audio program on the main FM channel such as if the main FM channel being listened to is 87.5 MHz then the related video channel would be 87.567 MHz, also, an additional audio/slow scan video FM station would be available as well and will be known as fm2, the audio portion of fm2 is an Independent Sideband Suppressed Carrier for providing audio in stereo at the SCA frequency at 114 kHz the slow scan video portion of the station is again another Double Sideband Suppress Carrier SCA at the frequency of 92 kHz.
    Type: Grant
    Filed: September 12, 2009
    Date of Patent: October 9, 2012
    Inventor: Keith Jones (aka Jabari)
  • Patent number: 8285205
    Abstract: A method and system for a single chip integrated Bluetooth and FM transceiver and baseband processor are provided. The single chip may comprise a Bluetooth radio, an FM radio, a processor system, and a peripheral transport unit (PTU). FM data may be received and/or transmitted via the FM radio and Bluetooth data may be received and/or transmitted via the Bluetooth radio. The FM radio may receive radio data system (RDS) data. The PTU may support digital and analog interfaces. A processor in the processor system may time-multiplex processing of FM data and processing of Bluetooth data. The single chip may operate in an FM-only, a Bluetooth-only, and an FM-Bluetooth mode. The single chip may reduce power consumption by disabling portions of the Bluetooth radio during FM-only mode and/or disabling analog circuitry when performing digital processing. Communication between Bluetooth and FM channels may be enabled via the single chip.
    Type: Grant
    Filed: November 22, 2005
    Date of Patent: October 9, 2012
    Assignee: Broadcom Corporation
    Inventors: Brima Ibrahim, Mitchell Buznitsky, Ahmadreza Rofougaran, John Walley, Bojko Marholev, Roy Tobin, Prasanna Desai, Angel Polo, Hea Joung Kim, Paul A. Lettieri, Siukai Mak
  • Patent number: 8271022
    Abstract: A wireless device, such as a mobile phone, and a method for operating the wireless device to access a media option. The wireless device may include a media player; a radio signal receiver system configured to receive media signals; a controller comprising a memory comprising a list of different media options, indicating media items the user is interested in taking part of and a media scanner configured to scan the radio signal receiver system to detect media content associated with the media options; a user input interface to select one media item currently indicted as detected; and a media selector configured to pass received media signals relating to the selected media item to the media player.
    Type: Grant
    Filed: November 20, 2009
    Date of Patent: September 18, 2012
    Assignee: Sony Ericsson Mobile Communications AB
    Inventors: Tomas Wassingbo, Heino Wendelrup
  • 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: 8195143
    Abstract: A management unit allocates network resources to a plurality of multiservice communication devices capable of communicating via a plurality of networks. The management unit includes a communication device interface for facilitating a bidirectional data communication with the plurality of multiservice communication devices via a wireless control channel, the bidirectional data communication including outbound control data sent to at least one of the plurality of multiservice communication devices and inbound control data received from at least one of the plurality of multiservice communication devices, wherein the wireless control channel is separate from the communication between the plurality of multiservice communication devices and the plurality of networks. A network interface receives network resource data from the plurality of networks.
    Type: Grant
    Filed: November 4, 2008
    Date of Patent: June 5, 2012
    Assignee: Broadcom Corporation
    Inventors: Vinko Erceg, Arya Reza Behzad, David Rosmann, Brima B. Ibrahim, Jeyhan Karaoguz, John Walley
  • Patent number: 8185099
    Abstract: A service aggregator allocates network resources to a plurality of multiservice communication devices capable of communicating via a plurality of networks. The service aggregator includes a communication device interface for facilitating a bidirectional data communication with the plurality of multiservice communication devices via a wireless control channel, the bidirectional data communication including outbound control data sent to at least one of the plurality of multiservice communication devices and inbound control data received from at least one of the plurality of multiservice communication devices, wherein the wireless control channel is separate from the communication between the plurality of multiservice communication devices and the plurality of networks. A network interface receives network resource data from the plurality of networks.
    Type: Grant
    Filed: November 4, 2008
    Date of Patent: May 22, 2012
    Assignee: Broadcom Corporation
    Inventors: Vinko Erceg, John Walley, Arya Reza Behzad, David Rosmann, Brima B. Ibrahim, Jeyhan Karaoguz
  • Patent number: 8180307
    Abstract: An electric device for receiving a radio frequency (RF) signal is provided. The electric device includes an antenna, a first power amplifier, a battery, a second filter and a second power amplifier. The antenna is used for receiving and outputting a RF signal. The first power amplifier is used for receiving the RF signal, amplifying the RF signal and outputting the RF enhanced by the first power amplifier and a feedback signal. The battery is used for providing a working voltage to the first power amplifier, and receiving and outputting the feedback signal. The second filter is used for receiving the working voltage provided by the battery and the feedback signal, filtering the feedback signal and outputting the working voltage. The second power amplifier is used for receiving the working voltage.
    Type: Grant
    Filed: December 11, 2008
    Date of Patent: May 15, 2012
    Assignee: Inventec Corporation
    Inventor: Che-Wei Hsu
  • Patent number: 8159620
    Abstract: A receiver can handle different types of reception signals, such as, for example, TV and FM-radio signals. In the receiver, a mixer (MIX) mixes a reception signal with an oscillator signal (OOS) so as to obtain a mixer output signal (MOS), which comprises a frequency-shifted version of the reception signal. An intermediate frequency amplifier (IFAMP) applies an amplified mixer output signal (MOSA) to two different intermediate frequency filters: one for first type reception signals and another for second type reception signals. A switchable coupling section (DBTP, SWA) is coupled between the mixer (MIX) and the intermediate frequency amplifier (IFAMP). The switchable coupling section (DBTP, SWA) is switchable to a first state and a second state. In the first state, the mixer output signal (MOS) substantially reaches an input (IAD) of the intermediate frequency amplifier (IFAMP) via a first coupling path (DTBP).
    Type: Grant
    Filed: July 20, 2006
    Date of Patent: April 17, 2012
    Assignee: NXP B.V.
    Inventors: Yeow T. Toh, Kam C. Kwong
  • Publication number: 20120077451
    Abstract: A vehicle radio includes a memory including normal mode memory locations and local mode memory locations. User preset buttons are each associated with a normal mode memory location, and local preset buttons are each associated with a local mode memory location. A radio controller selectively operates in local mode, wherein the radio controller scans frequencies being received and stores some of the received frequencies as local mode frequencies in the local mode memory locations of the preset memory. In local mode, the controller enables both: selection of any one of the user presets; and selection of any one of the local presets. Optionally, the local memory locations can first be filled by PTY preference, with unfilled locations filled by closest PTY or signal strength. A frequency stored in a local mode memory location can be copied to a normal mode memory location.
    Type: Application
    Filed: September 23, 2010
    Publication date: March 29, 2012
    Inventor: Jason M. Strohmaier
  • Patent number: 8140045
    Abstract: A semiconductor device is provided with a power supply circuit having a function to generate a power supply voltage from a wireless signal and an A/D converter circuit having a function to detect the strength of the wireless signal by an A/D conversion of a voltage generated from the wireless signal. This enables to provide a semiconductor device which does not require replacement of batteries, has few limitations on its physical shape and mass, and has a function to detect a physical position. By formation of the semiconductor device with use of a thin film transistor formed over a plastic substrate, a lightweight semiconductor device, which has flexibility in physical shape and a function to detect a physical location, can be provided at low cost.
    Type: Grant
    Filed: December 31, 2007
    Date of Patent: March 20, 2012
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Yoshiyuki Kurokawa, Takayuki Ikeda, Masami Endo, Hiroki Dembo, Daisuke Kawae, Takayuki Inoue, Munehiro Kozuma
  • Patent number: 8116705
    Abstract: A disclosed method tunes a signal from a channelized spectrum having a predetermined channel spacing. A signal of interest having a predetermined maximum bandwidth is mixed with a local oscillator signal, which has a frequency that is an integer multiple of the channel spacing or one-half of a channel spacing displaced from an integer multiple of the channel spacing. The local oscillator signal is selected to frequency translate the signal of interest to within a near-baseband passband whose lower edge is spaced from DC by at least about the maximum bandwidth of the signal of interest. Problems associated with 1/f noise, DC offsets, and self-mixing products are avoided or substantially diminished. Other methods and systems are also disclosed.
    Type: Grant
    Filed: November 9, 2009
    Date of Patent: February 14, 2012
    Assignee: University of Washington
    Inventor: Edwin A. Suominen
  • Patent number: 8060042
    Abstract: A signal processing apparatus and method thereof are disclosed. The present invention includes receiving a low frequency downmix signal including a multi channel signal, phase shift information and spatial information corresponding to parameter band of the low frequency downmix signal, generating the multi channel signal by applying the spatial information based on the parameter band to a whole frequency downmix signal, generating estimated phase shift information of a parameter band by using the phase shift information, and generating a phase shift multi channel signal by shifting a phase of the multi channel signal based on the phase shift information and the estimated phase shift information. Accordingly, it is able to efficiently reproduce a phase or delay difference, which is difficult to be efficiently reproduced by a decorrelator, in a manner of shifting a phase of a decoded audio or speech signal based on phase shift information.
    Type: Grant
    Filed: May 22, 2009
    Date of Patent: November 15, 2011
    Assignee: LG Electronics Inc.
    Inventors: Hyen O. Oh, Yang Won Jung
  • Patent number: 8027645
    Abstract: A method for automatically tuning a frequency modulator in a mobile device is described. A frequency band is automatically scanned using a frequency modulation (FM) receiver. The FM receiver is integrated as a part of the mobile device. Quality associated with channels of the frequency band is analyzed to identify at least one available channel at a first frequency. The first frequency is assigned to an FM modulator. The FM modulator is integrated as a part of the mobile device. A determination is made whether a command to scan for a second frequency is received. If the command to scan for the second frequency is not received, a signal on the first frequency is transmitted by the FM modulator.
    Type: Grant
    Filed: December 21, 2007
    Date of Patent: September 27, 2011
    Assignee: QUALCOMM Incorporated
    Inventors: Houman Haghighi, Victoria Ann Smith
  • Patent number: 8027418
    Abstract: To improve an S/N of an AM signal in a diversity reception circuit while suppressing an increase in a circuit size of A/D conversion circuits therein. In the diversity reception circuit, a single AM signal is supplied to each of the A/D conversion circuits provided for A/D converting a plurality of FM signals, and a plurality of obtained results of the conversions are added by an adding circuit, thereby improving the S/N.
    Type: Grant
    Filed: September 12, 2006
    Date of Patent: September 27, 2011
    Assignee: Renesas Electronics Corporation
    Inventor: Yuji Motoda
  • Patent number: 8027652
    Abstract: A radio front end utilizes at least one band pass filter to pass only the appropriate frequency band. Once the desired frequency band has been isolated it is converted to a digital format in an analog to digital converter and a digital signal processing device interprets the signal.
    Type: Grant
    Filed: October 12, 2007
    Date of Patent: September 27, 2011
    Assignee: Continental Automotive Systems US, Inc.
    Inventor: Stephen K. Gilbert
  • Patent number: 7941113
    Abstract: The wide bandwidth transceiver includes a receiver section, a transmitter section, and a local oscillation module. The local oscillation module generates a first and a second local oscillation. The transmitter section converts an outbound baseband signal and/or a low intermediate frequency (IF) signal into a first outbound radio frequency (RF) signal based on the second local oscillation when the wide bandwidth transceiver is in a second wireless standard mode and converts the outbound baseband and/or the low IF signal into a second outbound RF signal based on the first and second local oscillations when the wide bandwidth transceiver is in a first wireless standard mode.
    Type: Grant
    Filed: May 29, 2008
    Date of Patent: May 10, 2011
    Assignee: Broadcom Corporation
    Inventor: Ahmadreza (Reza) Rofougaran
  • Publication number: 20110105055
    Abstract: A single pole multi throw switch comprises a first switching unit, a second switching unit coupled to a common port and comprising a parasitic off state capacitance, and a matching unit. The matching unit may be coupled between the first switching unit and the common port, wherein the matching unit is configured to contribute, in conjunction with the parasitic off state capacitance of the second switching unit, to an impedance match if the first switching unit is active and the second switching unit is inactive.
    Type: Application
    Filed: October 30, 2009
    Publication date: May 5, 2011
    Applicant: INFINEON TECHNOLOGIES AG
    Inventor: Nikolay ILKOV
  • Patent number: 7927212
    Abstract: A disclosed player tracking unit provides a display, a wireless interface device designed or configured to communicate with a portable wireless headset, and a logic device designed or configured to communicate with the display, the wireless interface device, a master gaming controller that controls a game played on a gaming machine, and a player tracking server. The logic device can further communicate with the portable wireless headset using the wireless interface device. The portable wireless headset can include one or more earpieces configured to be worn by a player. Various messages, alerts, music, etc. can be sent from the player tracking unit to the portable wireless headset.
    Type: Grant
    Filed: July 30, 2004
    Date of Patent: April 19, 2011
    Assignee: IGT
    Inventors: Joseph R. Hedrick, Binh T. Nguyen
  • Publication number: 20110085612
    Abstract: A radio system includes: a memory which stores a system parameter and a pseudo parameter, the system parameter being used for generation of a feature value specific to a search target radio system, the pseudo parameter being similar to the system parameter; a feature value generator which generates one or a plurality of the feature values based on a signal in a received frequency band by using the system parameter; a non-feature value generator which generates one or a plurality of non-feature values based on the signal in the received frequency band by using the pseudo parameter; and a determination section which determines whether or not a signal of the search target radio system exists by using the one or the plurality of the feature values and the one or the plurality of non-feature values.
    Type: Application
    Filed: May 25, 2009
    Publication date: April 14, 2011
    Applicant: NEC CORPORATION
    Inventors: Kazushi Muraoka, Masayuki Ariyoshi
  • Patent number: 7881692
    Abstract: An integrated low-IF (low intermediate frequency) terrestrial broadcast receiver and associated method are disclosed that provide an advantageous and cost-efficient solution. The integrated receiver includes a mixer, local oscillator generation circuitry, low-IF conversion circuitry, and DSP circuitry. And the integrated receiver is particularly suited for small, portable devices and the reception of terrestrial audio broadcasts, such as FM and AM terrestrial audio broadcast, in such portable devices.
    Type: Grant
    Filed: September 14, 2007
    Date of Patent: February 1, 2011
    Assignee: Silicon Laboratories Inc.
    Inventors: G. Tyson Tuttle, Dan B. Kasha
  • Patent number: 7877066
    Abstract: An embodiment of the present invention provides an RF log-amp detector, comprising a pre-amplifer at the input of the RF log-amp detector, a plurality of limiters with variable gain connected to the pre-amplifier, wherein the gain of the preamplifier is set to its minimum and the dynamic range is expanded by modifying the amplification gain of the plurality of limiters, thereby increasing the dynamic range and reducing accuracy, after which a coarse measurement of a power level is taken and wherein the RF log-amp detector then defines which pre-amplification level is required based on the course measurement to bring the signal at the output of the preamp within an optimum dynamic range of the log-amp and wherein the pre-amplification gain is then set while the gain of the plurality of limiters are set to their minimum value with the RF log-amp then performing a second measurement with higher accuracy and calculating the final measurement from fine measurements and the pre-amplification gain.
    Type: Grant
    Filed: May 7, 2007
    Date of Patent: January 25, 2011
    Assignee: Paratek Microwave Inc
    Inventor: Guillaume Blin
  • Publication number: 20110009080
    Abstract: A receiver can be configured to include an RF front end that is configured to downconvert a received signal to a baseband signal or a low Intermediate Frequency (IF) signal. The receiver can downconvert the desired signal from an RF frequency in the presence of numerous interference sources to a baseband or low IF signal for filtering and channel selection. The filtered baseband or low IF signal can be converted to a digital representation. The digital representation of the signal can be upconverted in the digital domain to a programmable IF frequency. The digital IF signal can be converted to an analog IF signal that can be processed by legacy hardware.
    Type: Application
    Filed: July 6, 2010
    Publication date: January 13, 2011
    Applicant: MaxLinear, Inc.
    Inventors: Kishore Seendripu, Raymond Montemayor, Sheng Ye, Glenn Chang, Curtis Ling
  • Patent number: 7869785
    Abstract: A Method and Apparatus for Enhancing the Speed of Wideband Signal Search Systems provides a system that can perform hyper fast scanning for signals while at the same time provide very good phase noise performance. The method and apparatus provide a way to reduce costs by avoiding the expensive solutions employed by the unmodified prior systems. The method and apparatus have all of the abilities of standard wideband signal collection systems. Secondly the method and apparatus are able to automatically, and extremely quickly, control multiple VCO's in a finely coordinated tuning process. Thirdly, the method and apparatus still have very good phase noise performance, even though it has hyper fast tuning speeds. Fourthly, the preferred method and apparatus pipeline the digitization and tuning phases of the collection process.
    Type: Grant
    Filed: January 31, 2008
    Date of Patent: January 11, 2011
    Assignee: Agilent Technologies, Inc.
    Inventor: Lars Karlsson
  • Patent number: 7860474
    Abstract: A method of controlling noise in a pulse width modulation circuit includes varying a sample frequency and a range of information levels, wherein each sample within a data sample stream at the sample frequency represents a level within the range of information levels, to shift in frequency noise generated at the sample frequency during encoding of the data sample stream into pulse width modulated patterns.
    Type: Grant
    Filed: June 13, 2006
    Date of Patent: December 28, 2010
    Assignee: Cirrus Logic, Inc.
    Inventors: Chang Yong Kang, John Laurence Melanson