Frequency Scanning Patents (Class 455/161.1)
  • Patent number: 10598759
    Abstract: A method is provided that includes collecting radio fingerprints with each fingerprint including a radio signal measurement of a radio environment of a mobile device and a respective location estimate. The method also includes determining whether the location of the mobile device is part of a routine or deviates from a routine and, in case the location of the mobile device is part of a routine, at least partially performing the collecting of radio fingerprints with a reduced collecting scope compared to a collecting scope used in case the location of the mobile device deviates from a routine. The collecting of radio fingerprints, when the location of the mobile device is part of a routine, is configured such that, after collecting radio fingerprints for multiple occurrences of the respective routine, a coverage of the respective routine by the collected radio fingerprints is increased.
    Type: Grant
    Filed: July 18, 2018
    Date of Patent: March 24, 2020
    Assignee: HERE Global B.V.
    Inventors: Pavel Ivanov, Lauri Aarne Johannes Wirola, Henri Jaakko Julius Nurminen
  • Patent number: 9992729
    Abstract: A computer-implemented method for modifying operation of a portable processing device configured to scan for wireless signals under a first scan rate. As wireless signals are received in the portable processing device, characteristics of the wireless signals are analyzed, and if the characteristics match one or more characteristics, the operation of the portable processing device is modified. Under one exemplary embodiment, the first scan rate is modified to a second scan rate, where the second scan rate being different from the first. Under another exemplary embodiment, monitoring capabilities in the portable processing device are activated or modified to collect research data on media data. The characteristics may include identification information or messages/commands that are transmitted wirelessly.
    Type: Grant
    Filed: October 22, 2012
    Date of Patent: June 5, 2018
    Assignee: The Nielsen Company (US), LLC
    Inventors: Anand Jain, John Stavropoulos, Alan Neuhauser, Wendell Lynch, Vladimir Kuznetsov, Jack Crystal, David Gish
  • Patent number: 9894585
    Abstract: A method in a base station for handling sector selection is provided. A wireless terminal is connected to a first sector comprised in a combined cell. When a quality of the communication resources in the first sector is below a first threshold, the base station determines that the first sector is no longer the best sector for the wireless terminal. Then the base station sends an order to the wireless terminal to initiate a random access procedure in the combined cell. The base station then selects a second sector in the combined cell based on measurements of signal strength of random access preambles received from the wireless terminal in each respective sector in the combined cell. The random access preambles are received from the wireless terminal in the initiated random access procedure. The second sector is selected for the wireless terminal to communicate in.
    Type: Grant
    Filed: February 4, 2014
    Date of Patent: February 13, 2018
    Assignee: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
    Inventors: Alexander Langereis, Marco Belleschi, Jawad Manssour
  • Patent number: 9819764
    Abstract: Concurrent provisioning of preferences for members of an environment is facilitated. A method identifies a characteristic of an environment, wherein the characteristic is based on profile information associated with entities in the environment. The method also determines control information associated with providing preferences associated with the characteristic. In another case, an apparatus stores first profile for a first entity, wherein the first profile information is configured to be evaluated, along with second profile information associated with a second entity, by a receiving device in an environment. In another case, an apparatus retrieves, from a device in an environment, profile information associated with entities in the environment. The apparatus can determine support care based on the profile information.
    Type: Grant
    Filed: February 6, 2017
    Date of Patent: November 14, 2017
    Assignee: AT&T INTELLECTUAL PROPERTY I, L.P.
    Inventor: Braxton Davis
  • Patent number: 9794866
    Abstract: Apparatuses, systems, and methods for user equipment (UE) devices to more efficiently scan frequency bands for potential base stations may include a UE configured to store information regarding results of prior cellular scan operations for a cell and to perform a new cellular scan operation while camped in the first cell. The new cellular scan operation may be partially based on the stored information. The prior cellular scan operations may have been performed to identify frequencies of available cellular base stations. The UE may update the information regarding results of prior cellular scan operations with information regarding success or failure of the new cellular scan operation. The UE may maintain lists of cells for which a cellular scan has been successful or unsuccessful and adjust the new cellular scan operation based at least partially on contents of at least one of these lists.
    Type: Grant
    Filed: April 16, 2015
    Date of Patent: October 17, 2017
    Assignee: Apple Inc.
    Inventors: Arvind Swaminathan, Umesh K. Shukla, Srinivas Pasupuleti
  • Patent number: 9749793
    Abstract: Method for monitoring the presence of a mobile station in at least one special area, wherein a radio communication defining device transmits one radio distinctive defining signal that define the special area by its coverage, the mobile station processes a signal received in order to determine whether or not it is defining signal and more precisely a distinctive one that defines the special area, the mobile station sends an updating signal to a mobile telephone network, the network routes the updating signal to special operating means that adapt the value of an operating parameter. According to the invention, the special area is associated to the mobile station by transmitting to the mobile station a checking data used by the mobile station for determining whether or not the defining signal received is distinctive defining signal.
    Type: Grant
    Filed: June 12, 2015
    Date of Patent: August 29, 2017
    Assignee: AFIRMA CONSULTING & TECHNOLOGIES, S.L.
    Inventor: Carlos A. Pérez LaFuente
  • Patent number: 9634779
    Abstract: A system and method are provided for enabling a plurality of media feeds, such as internet radio stations, to be played through a standard media player, such as a radio receiving device, using the tuning or input selection controls of the media player to control the selection of which media feed to play. Identification signatures are added to channels and transmitted to the media player by transmitter. A controller captures the feedback of the media player and, if it detects one of the signature signals in the feedback, instructs the media feed selector to select a media feed which corresponds to the detected identification signature. The selected audio feed may then be transmitted to the media player on the corresponding channel for playback.
    Type: Grant
    Filed: April 30, 2014
    Date of Patent: April 25, 2017
    Assignee: SWISSCOM AG
    Inventor: Urs-Viktor Marti
  • Patent number: 9590762
    Abstract: An access point (AP) includes a transceiver to service wireless client traffic on wireless channels within a channel bandwidth. The AP services wireless client traffic in a first channel bandwidth and sets a receiver bandwidth to include the first channel bandwidth and a second channel bandwidth initially not available for servicing wireless client traffic. Concurrent with servicing the wireless client traffic in the first channel bandwidth, the AP searches the second channel bandwidth for any interference signal. If no interference signal is found in the second channel bandwidth, the AP declares the second channel bandwidth free of interference.
    Type: Grant
    Filed: September 8, 2014
    Date of Patent: March 7, 2017
    Assignee: Cisco Technology, Inc.
    Inventors: David Kloper, Raghuram Rangarajan, Greg Corsetto
  • Patent number: 9559657
    Abstract: A radio includes a first tuner and a second tuner. A processor compares a first perceivable volume level of a station tuned by the first tuner to at least one second perceivable volume level of at least one background station tuned by the second tuner. The processor enables automatic volume knob changes using a pre-calibrated lookup table that associates a volume step of the volume knob with a difference between the first perceivable volume level and the second perceivable volume level.
    Type: Grant
    Filed: October 31, 2014
    Date of Patent: January 31, 2017
    Assignee: Panasonic Automotive Systems Company of America, Division of Panasonic Corporation of North America
    Inventors: Shree Jaisimha, Donald Thomas, Kazuo Morita
  • Patent number: 9549293
    Abstract: A media receiver identifies attributes of a media station to which the media receiver is currently tuned. The media receiver monitors the signal quality of the media station. If the signal quality of the media station drops below a quality threshold, the receiver chooses an alternate station having similar content, and then tunes to the alternate station until the signal quality of the original station improves. When the signal quality of the original station rises above a re-tune threshold, the receiver can switch back to the original station. The receiver can monitor and record user listening patterns, station-switching patterns, and situational parameters, to identify times or locations at which station switches occur. This information can be used to select appropriate alternative stations, to perform pre-emptive station switches, and to determine when a station's content will be buffered with the expectation that a station's signal will drop below the quality threshold.
    Type: Grant
    Filed: October 20, 2015
    Date of Patent: January 17, 2017
    Assignee: IHEARTMEDIA MANAGEMENT SERVICES, INC.
    Inventors: Jeffrey Lee Littlejohn, Michael Lincoln Albl, Jeffrey D. Zigler, Kevin R. Lockhart, Richard D. Wooden, Jacqueline J. Lockhart, Theodore N. Myers, Evan A. Hill, Tanya R. Jellison
  • Patent number: 9526065
    Abstract: A method and wireless station used to perform WiFi scans. The wireless station determines a first cell identity of a first cell to which the wireless station is currently connected, determines a second cell identity of a second cell that is available, determines whether either of the first or second cell identities are related to a WiFi network based on relationships between cell identities and WiFi networks stored in the wireless station, performs a first type of scan for available WiFi networks when either of the first cell identity or the second cell identity is related to the WiFi network and performs a second type of scan for available WiFi networks when neither of the first cell identity or the second cell identity is related to the WiFi network, the first type of scan is performed more frequently or over more channels compared to the second type of scan.
    Type: Grant
    Filed: May 30, 2014
    Date of Patent: December 20, 2016
    Assignee: APPLE INC.
    Inventor: APPLE INC.
  • Patent number: 9467320
    Abstract: Disclosed herein are a method and a system for performing initial ranging in a cognitive radio network The method for performing initial ranging in a cognitive radio network includes: detecting signals received in one or more ranging sections; estimating a tint time offset based on a correlation between subcarrier indices of the signals detected in the one or more ranging sections; estimating a second time offset based on correlations for the signals detected in the one or more ranging sections and a plurality of codes that are predetermined and detecting an initial ranging code among the plurality of codes; and estimating a time offset of a CPE performing initial ranging with the detected initial ranging code using the first time offset and the second time offset that are estimated.
    Type: Grant
    Filed: August 4, 2014
    Date of Patent: October 11, 2016
    Assignee: Electronics and Telecommunications Research Instit
    Inventors: Jung-Sun Um, Sung-Hyun Hwang, Sung-Jin Yoo, Byung-Jang Jeong, Jae-Ick Choi
  • Patent number: 9420021
    Abstract: A method of enhancing the use of a media device and a media device are provided. The media device receives a broadcast media stream transmitted by a broadcast system, a service transmitted by a telecommunication system, the service being associated with a broadcast media stream and program guide information relating to a broadcast media stream. The media device is configured to detect when the service transmission comprises data corresponding to given search parameters and to record the broadcast media stream in a memory on the basis of the detection.
    Type: Grant
    Filed: December 13, 2004
    Date of Patent: August 16, 2016
    Assignee: Nokia Technologies Oy
    Inventors: Jyrki Matero, Juha P. Matero
  • Patent number: 9402227
    Abstract: A user device receives network information for a future destination of the user device. The user device stores the network information for the future destination in a local store of the user device. Responsive to the user device starting up, the user device searches for an available network using the network information in the local store of the user device, wherein searching for the available network excludes searching for a last registered network.
    Type: Grant
    Filed: August 5, 2014
    Date of Patent: July 26, 2016
    Assignee: Amazon Technologies, Inc.
    Inventor: Kiran K. Edara
  • Patent number: 9396370
    Abstract: A carrier compensation reader compensates a carrier signal. The carrier compensation reader transmits, via an antenna, a first carrier signal and obtains a second carrier signal based on the first carrier signal. The carrier compensation reader configures a compensation circuit to receive a receiver output signal based on the second carrier signal and generate a compensation signal based on the receiver output signal to compensate the second carrier signal. The carrier compensation reader obtains a carrier compensation signal summing the second carrier signal and the compensation signal.
    Type: Grant
    Filed: April 25, 2013
    Date of Patent: July 19, 2016
    Assignee: Atmel Corporation
    Inventors: Marco Schwarzmueller, Ulrich Grosskinsky, Wolfgang Schneider
  • Patent number: 9344969
    Abstract: A mobile phone initially probes while in an open-loop mode with an estimated power level based on the received power level from a base station. If a response is not received, power is incremented, and a subsequent probe is sent. The process is repeated until a response is received or when maximum power is reached. If a response is still not received, the mobile phone tests for changing its location state. When BTS probes are unsuccessful and maximum power is reached, available sensors are sampled and tested for a change of state, e.g., by way of an inclinometer, an accelerometer, a magnetometer, a GPS, standard 802.11, or employing a Bluetooth, and the like. If no state change is detected, a delay block is entered, reducing the probing rate and the power consumption rate. If a state change is detected, the delay block is bypassed and probing resumes immediately.
    Type: Grant
    Filed: February 9, 2012
    Date of Patent: May 17, 2016
    Assignee: International Business Machines Corporation
    Inventor: Laurence V. Marks
  • Patent number: 9288273
    Abstract: Systems, methods, and devices for transmitting service information on a network are disclosed. In one aspect, a method for an access point for transmitting service information on a network is disclosed. The method includes receiving a multicast service query from a wireless device, the service query requesting information on one or more services offered on the network. The method further includes determining a signal strength of a wireless connection to the wireless device, based at least in part on the received service query. The method further includes comparing the signal strength of the wireless connection to a threshold signal strength value and selectively responding to the service query from the wireless device based at least in part on the signal strength of the wireless connection as compared to the signal threshold value.
    Type: Grant
    Filed: January 21, 2014
    Date of Patent: March 15, 2016
    Assignee: QUALCOMM Incorporated
    Inventor: George Cherian
  • Patent number: 9252863
    Abstract: A method and apparatus are disclosed for sharing antennas between modems for two or more different radio access technologies when two or more antennas may be present in a system. A method for coordination between the modem and the corresponding network element as well as the coordination between the two or more radio access technologies is provided. A method for determining when one of the modems does not need some of its antennas is also provided. The sharing of antennas across two or more modems enables efficient use of the antennas which is critical in small form factor mobile communication devices.
    Type: Grant
    Filed: April 1, 2014
    Date of Patent: February 2, 2016
    Assignee: MBIT WIRELESS, INC.
    Inventors: Arumugam Govindswamy, Bhaskar Patel, Sivakumar Govindassamy
  • Patent number: 9253620
    Abstract: Methods, apparatuses, and devices are disclosed that may be used re-allocate active scan times of available frequency channels used by wireless transceivers within range of a mobile device. Re-allocation of active scan times may comprise increasing and/or decreasing active time scans based, at least in part, on a number of wireless transceivers discovered transmitting on one or more of the available frequency channels.
    Type: Grant
    Filed: May 9, 2014
    Date of Patent: February 2, 2016
    Assignee: QUALCOMM Incorporated
    Inventors: Jeemil N. Shah, Vishal Agarwal, Ashok Bhatia
  • Patent number: 9203445
    Abstract: A media receiver identifies attributes of a media station to which the media receiver is currently tuned. The media receiver monitors the signal quality of the media station. If the signal quality of the media station drops below a quality threshold, the receiver chooses an alternate station having similar content, and then tunes to the alternate station until the signal quality of the original station improves. When the signal quality of the original station rises above a re-tune threshold, the receiver can switch back to the original station. The receiver can monitor and record user listening patterns, station-switching patterns, and situational parameters, to identify times or locations at which station switches occur. This information can be used to select appropriate alternative stations, to perform pre-emptive station switches, and to determine when a station's content will be buffered with the expectation that a station's signal will drop below the quality threshold.
    Type: Grant
    Filed: October 2, 2014
    Date of Patent: December 1, 2015
    Assignee: iHeartMedia Management Services, Inc.
    Inventors: Jeffrey Lee Littlejohn, Michael Lincoln Albl, Jeffrey D. Zigler, Kevin R. Lockhart, Richard D. Wooden, Jacqueline J. Lockhart, Theodore N. Myers, Evan A. Hill, Tanya R. Jellison
  • Patent number: 9001749
    Abstract: A communication apparatus is provided. The communication apparatus includes an RF module, a down converter coupled to the RF module and a detector coupled to the down converter. The RF module receives an RF signal. The down converter down converts the RF signal in response to a channel select signal to generate a converted signal, wherein the channel select signal controls the down converter to alternately sweep a plurality of scan trains during a scan frame, and each of the scan trains comprises a plurality of channels. The power detector determines whether the RF signal comprises an ID packet according to the converted signal corresponding to the channels of the plurality of scan trains.
    Type: Grant
    Filed: January 17, 2011
    Date of Patent: April 7, 2015
    Assignee: MediaTek Inc.
    Inventors: Yuan Chen, Ting-Che Tseng, Wen-Ying Chien, Wei-Lun Wan, Wei-Kun Su, Hong-Kai Hsu
  • Patent number: 8995941
    Abstract: Techniques are described for use in scanning by a mobile device which is configured to communicate in compliance with regulatory requirements of a regulatory domain based on country information communicated in one or more beacon frames. The mobile device scans a radio frequency (RF) band using passive scan operations on RF channels having passive scan status, where each passive scan operation involves monitoring an RF channel in attempt to decode a beacon frame. When the mobile device successfully decodes, on an RF channel for a passive scan operation, an information frame of a type that is different from a beacon frame, it changes the passive scan status of the RF channel to an active scan status and performs an active scan operation on the RF channel.
    Type: Grant
    Filed: April 2, 2013
    Date of Patent: March 31, 2015
    Assignee: BlackBerry Limited
    Inventors: Leonardo Jose Silva Salomone, Michael Peter Montemurro
  • Patent number: 8976302
    Abstract: A radio frequency front end for a television band receiver and spectrum sensor includes a low noise amplifier that amplifies a received signal output of a radio frequency antenna connected to the radio frequency front end, a pin diode attenuator circuit that selectively attenuates an output of the low noise amplifier, and a buffer amplifier that amplifies an output of the pin diode attenuator.
    Type: Grant
    Filed: March 23, 2012
    Date of Patent: March 10, 2015
    Assignee: Wi-LAN, Inc.
    Inventors: Neil Birkett, Vajira Samarasooriya, Jung Yee
  • Patent number: 8958401
    Abstract: In accordance with an example embodiment of the present invention, there is provided a user equipment configured to receive local network connectivity information over a first wireless interface, determine a scanning strategy based at least in part on the received information, and discover a local network over a second wireless interface using at least in part the determined scanning strategy.
    Type: Grant
    Filed: May 3, 2010
    Date of Patent: February 17, 2015
    Assignee: Nokia Corporation
    Inventors: Klaus Doppler, Juha Korhonen
  • Patent number: 8934845
    Abstract: The present disclosure provides radio station list management in a wireless receiver. Upon detection of a scan event, a plurality of radio broadcast channels is scanned to detect available radio stations. Available radio stations that fail to meet a preference criterion are identified and removed to form a list of preferred radio stations. The scan event may be generated dependent upon a time, a location of the wireless receiver, or a broadcast signal quality. Preference criteria may include station content classification and signal quality.
    Type: Grant
    Filed: May 21, 2012
    Date of Patent: January 13, 2015
    Assignee: BlackBerry Limited
    Inventor: Jianfeng Weng
  • Patent number: 8931017
    Abstract: A channel scanning method for Digital Video Broadcasting-Satellite (DVB-S) signals is provided. The method includes: scanning a radio frequency (RF) signal according to a normal frequency step; when the Nth channel is detected, obtaining a difference between a low boundary of an Nth channel and a high boundary of an (N?1)th channel; and, when the difference is within a predetermined bandwidth range, scanning the RF signal between the high boundary of the (N?1)th channel and the low boundary of the Nth channel according to a narrow frequency step. The normal frequency step is greater than the narrow frequency step.
    Type: Grant
    Filed: December 3, 2013
    Date of Patent: January 6, 2015
    Assignee: MStar Semiconductor, Inc.
    Inventors: Chu-Hsin Chang, Kai-Wen Cheng, Yi-Ying Liao, Tung-Sheng Lin, Tai-Lai Tung
  • Patent number: 8923774
    Abstract: A management unit manages a plurality of multiservice communication devices capable of communicating via a plurality of networks. The management unit includes a 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 via either a logical or physical control channel. A network interface receives network resource data from the plurality of networks. A management processing unit includes a local agent that gathers environmental data, wherein the management processing unit processes the inbound control data, the environmental data and the network resource data and that generates the outbound control data in response thereto.
    Type: Grant
    Filed: November 4, 2008
    Date of Patent: December 30, 2014
    Assignee: Broadcom Corporation
    Inventors: Vinko Erceg, David Rosmann, Brima B. Ibrahim, Jeyhan Karaoguz, John Walley, Arya Reza Behzad
  • Patent number: 8897706
    Abstract: Different scan modes are provided for Bluetooth devices. In at least some embodiments, a narrowband scanning mode looks for signal energy on individual transmission frequencies at a time. By looking for signal energy rather than decoding transmitted packets, at least some of the components in a Bluetooth device can remain in an idle or rest state. A midband scanning mode looks for signal energy across multiple different frequencies at a time. Again, by looking for signal energy across multiple different frequencies rather than decoding transmitted packets, at least some of the components in a Bluetooth device can remain in an idle or rest state. A wideband scanning mode looks for signal energies across all relevant frequencies at a time. At least some embodiments enable a Bluetooth device to switch between scanning modes.
    Type: Grant
    Filed: February 1, 2013
    Date of Patent: November 25, 2014
    Assignee: Marvell International Ltd.
    Inventors: Yui Lin, Lawrence Tse, Poh Boon Leong, Minko Tsai, Robert Mack, Yungping Hsu
  • Patent number: 8896415
    Abstract: A programmable radio communication system comprises a transmitter (1) and a receiver (2). The transmitter comprises radio transmitting means (5) and processing means (3).
    Type: Grant
    Filed: February 14, 2012
    Date of Patent: November 25, 2014
    Assignee: Nordic Semiconductor ASA
    Inventors: Bjorn Tore Taraldsen, David Devasahayam Edwin
  • Patent number: 8892229
    Abstract: An audio apparatus according to an embodiment includes an audio signal receiving unit, a music gap signal receiving unit, a playback unit, and a determining unit. The audio signal receiving unit receives an audio signal in which successive multiple music data are contained in a single block of data. The determining unit determines a boundary of the music data on the basis of the time at which the music gap signal that indicates the boundary of the music data by the music gap signal receiving unit and the duration of a silent period in the audio signal that is played back by the playback unit.
    Type: Grant
    Filed: May 14, 2012
    Date of Patent: November 18, 2014
    Assignee: Fujitsu Ten Limited
    Inventors: Osamu Yasutake, Fumitake Nakamura, Nobutaka Miyauchi, Masanobu Maeda, Masahiko Kubo, Nahoko Kawamura, Machiko Matsui, Hideto Saitoh, Hiroyuki Kubota, Masayuki Takaoka, Masanobu Washio, Yutaka Nishioka
  • Patent number: 8892052
    Abstract: In various embodiments, a method for determining whether a signal includes a wanted signal may be provided. The method may include determining a frequency at which the signal has a signal energy above a first pre-defined signal energy threshold and determining whether the signal includes a wanted signal, based on whether the signal has a signal energy above a second pre-defined signal energy threshold in a pre-defined frequency range in a frequency neighborhood of the determined frequency.
    Type: Grant
    Filed: March 2, 2010
    Date of Patent: November 18, 2014
    Assignee: Agency for Science, Technology and Research
    Inventors: Yonghong Zeng, Ser Wah Oh, Tran Phuoc Cuong Le, Weiqiang Zhang
  • Patent number: 8862127
    Abstract: A protocol processing method and apparatus are disclosed for a multi-SIM terminal holding multiple subscriber identification cards. The method includes: determining whether all the subscriber identification cards are associated with the same base station (e.g., a Public Land Mobile Network); and conducting, when all the subscriber identification cards are associated with the same base station, frequency scanning and measurement for a selected one of the subscriber identification cards, and sharing the results of frequency scanning and measurement with all the subscriber identification cards. Hence, the multi-SIM terminal may reduce battery power consumption without repeated frequency scanning and measurement for multiple subscriber identification cards.
    Type: Grant
    Filed: September 8, 2010
    Date of Patent: October 14, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Sang Min Shin
  • Patent number: 8849225
    Abstract: A system and method to efficiently use a plurality of ‘receivers’ to monitor a larger plurality of ‘sources’ for audio content. Upon identifying that a source is active, one of the plural receivers is assigned to convey the content to a destination. All other receivers are prevented from monitoring that specific source for the duration of its activity, but continue to monitor the remaining sources. ‘Source’ includes any source of information containing audio content. ‘Receiver’ includes any device capable of selectively conveying such content, including physical switches, hardware or software multiplexers, microphones, radio receivers, or any other means of obtaining such content.
    Type: Grant
    Filed: May 17, 2012
    Date of Patent: September 30, 2014
    Assignee: RangeCast Technologies, LLC
    Inventor: Terence Sean Sullivan
  • Patent number: 8849213
    Abstract: An integrated circuit comprises a main bus, one or more integrated processors, an external bus interface, memory, internal bus controller, a signal analyzer, timers, reset/clock generator, radio controller, optional data converters, and optional radio. The signal analyzer performs both time-domain and frequency-domain analysis of the input signal and supplies data to the one or more integrated processors for signal classification.
    Type: Grant
    Filed: November 23, 2009
    Date of Patent: September 30, 2014
    Assignee: Bandspeed, Inc.
    Inventors: Ben William Jones, Douglas A. Mammoser, John M. Morton, Nils Bagge, Bhavin Bhulani, Matthew P. Wingert, Harrison J. Killian
  • Patent number: 8831065
    Abstract: Methods and systems for fast synchronization and data reception for frequency hopping wireless communication systems are disclosed. Aspects of one method may include receiving a plurality of RF signals corresponding to a plurality of hopping frequencies. The RF signals may be processed in parallel to determine a hopping sequence. For example, the plurality of RF signals may be down-converted to a corresponding plurality of IF or baseband signals. The down-converted signals may be combined together to a single combined signal, and the single combined signal may then be processed to determine the frequency hopping sequence.
    Type: Grant
    Filed: July 18, 2012
    Date of Patent: September 9, 2014
    Assignee: Broadcom Corporation
    Inventor: Robert Hulvey
  • Patent number: 8831545
    Abstract: Implementations relate to methods and apparatus for the aggregation of guide and frequency map information for multiple frequency networks (MFNs) using an upper-level single frequency network (SFN). A mobile device can provide a program guide displaying a listing of content scheduled for broadcast by a content server. An upper network can be in hierarchical coverage with at least two networks, and can receive at least one of guide and frequency data associated with the program guide from the at least two networks. The upper network can aggregate the at least one of guide and frequency data into aggregated guide and frequency data. The aggregated data can be distributed to the at least two networks and/or accessed from the upper network. The mobile device can receive the aggregated data from either the at least two networks or the upper network.
    Type: Grant
    Filed: April 2, 2009
    Date of Patent: September 9, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Gordon Kent Walker, An Mei Chen
  • Patent number: 8831520
    Abstract: In a cognitive radio communication device, before a communication link for the cognitive radio communication is established, a control channel which is a common channel which can be used by a plurality of cognitive radio communication devices is detected. By exchanging sensing information and sensing control information among the plurality of radio communication devices using the detected common channel, the information is shared. The plurality of cognitive radio communication devices share the sensing information and the sensing control information, and use the information for determining a channel used for spectrum monitoring and data communication, and the like.
    Type: Grant
    Filed: July 12, 2010
    Date of Patent: September 9, 2014
    Assignee: National Institute of Information and Communications Technology
    Inventors: Yohannes Alemseged Demessie, Ha Nguyen Tran, Chen Sun, Hiroshi Harada
  • Patent number: 8824407
    Abstract: A method for network entry management for use in a base station. The method includes steps of broadcasting multiple carriers, wherein the carriers are classified into fully configured carriers and partially configured carriers, the fully configured carrier includes at least one primary synchronization channel (P-SCH) and at least one secondary synchronization channel (S-SCH), and the partially configured carrier includes at least one P-SCH and does not include the S-SCH.
    Type: Grant
    Filed: August 1, 2012
    Date of Patent: September 2, 2014
    Assignee: Acer Incorporated
    Inventors: Yan-Xiu Zheng, Ming-Bing Chen
  • Publication number: 20140220918
    Abstract: An aircraft radio comprises a receiver, an audio output, and a processing element. The receiver is tuned to a first radio frequency which provides a first audio signal and a second radio frequency which provides a second audio signal. The audio output provides an audio signal to a listening device. The processing element is coupled to a memory element and is configured to tune the receiver to the first radio frequency for a first time period, present the first audio signal to the audio output during the first time period, tune the receiver to the second radio frequency for a second time period to detect presence of the second audio signal, and present audio derived from the first audio signal to the audio output during at least a portion of the second time period.
    Type: Application
    Filed: April 7, 2014
    Publication date: August 7, 2014
    Applicant: Garmin International, Inc
    Inventors: Charles Gregory Sherwood, Michael D. Davis, Anthony T. Green
  • Patent number: 8798566
    Abstract: A wireless receiver scan circuit (10) including a low-IF de-rotator (210) with signal band and image band outputs, and search circuitry (80, 200) operable to parallelize (100) a frequency-scanning search by determination of the presence and absence of a transmission in both the signal band and the image band. Other circuits, systems and processes are also disclosed.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: August 5, 2014
    Assignee: Texas Instruments Incorporated
    Inventors: Jaiganesh Balakrishnan, Dhananjay Sangappa Awaji
  • Patent number: 8792841
    Abstract: A method for providing a radio channel list and a mobile terminal supporting the method are disclosed. The mobile terminal includes a radio module for performing a radio channel search and for supporting radio broadcast reception, a radio antenna that serves as an antenna for the radio module, a switch placed between the radio module and the radio module, and a control unit for controlling a process of generating a first channel list of ineffective radio channels by performing radio channel search while the radio antenna is disconnected from the radio module by the switch, generating a second channel list of effective radio channels by performing radio channel search while the radio antenna is connected to the radio module by the switch, creating a valid radio channel list by removing entries of the first channel list from the second channel list, and providing the created valid radio channel list.
    Type: Grant
    Filed: May 18, 2012
    Date of Patent: July 29, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Sung Ryong Park
  • Patent number: 8787193
    Abstract: Provided is a wireless communication system capable of increasing safety in the aviation industry, and applicable to the aviation industry. The wireless communication system comprises a control device and a spectrum sensor. The spectrum sensor performs spectrum sensing using a measurement SAP, receives a signal from a wireless communication device, and transmits information relating to the received signal as sensing information through a communication SAP. On the other hand, the control device receives the sensing information from the spectrum sensor through the communication SAP. Subsequently, the sensing information is analyzed using an application SAP. Thereby, whether or not the signal from the wireless communication device interferes with the radio waves of the airband used in the aviation industry is specified.
    Type: Grant
    Filed: January 14, 2011
    Date of Patent: July 22, 2014
    Assignee: National Institute Of Information And Communications Technology
    Inventors: Chen Sun, Yohannes Alemseged Demessie, Ha Nguyen Tran, Hiroshi Harada
  • Patent number: 8774067
    Abstract: There are first and second antennas proximally disposed and configured to resonate within respective first and second frequency bands, which may overlap. An impedance stabilization circuitry is coupled to ground. There is a selective coupler (for example, diplexer, directional coupler, switch) interfacing the second antenna selectively with the impedance stabilization circuitry and with radio circuitry. The selective coupler comprises a first port coupled to the second antenna, a second port coupled to the impedance stabilization circuitry, and a third port configured to couple with radio circuitry that is configured to operate in the second frequency band. The selective coupler provides a predetermined impedance to signals within the first frequency band and a low insertion loss to signals within the second frequency band, thus providing a stable impedance for the first antenna's view of the second antenna.
    Type: Grant
    Filed: November 17, 2009
    Date of Patent: July 8, 2014
    Assignee: Nokia Corporation
    Inventors: Seppo O. Rousu, Marko E. Leinonen, Juha P. Valtanen
  • Patent number: 8774799
    Abstract: A method of scanning neighboring base stations for measuring channel quality in a wireless communication system includes receiving information associated with at least one neighboring base station; transmitting a scanning request message including parameters related to a requested scan duration, a requested interleaving interval and a requested scan iteration; and receiving a scanning response message in response to the scanning request message, the scanning response message including parameters related to an allowed scan duration, an allowed interleaving interval, a scan report mode, and an allowed scan iteration, wherein the scan report mode, which indicates a channel quality measurement reporting method, is set to ‘00’ when the scan report mode indicates no report, set to ‘01’ when the scan report mode indicates a periodic report, and set to ‘10’ when the scan report mode indicates a event-triggered report.
    Type: Grant
    Filed: March 20, 2012
    Date of Patent: July 8, 2014
    Assignee: LG Electronics Inc.
    Inventors: Yong Ho Kim, Ki Hyoung Cho
  • Patent number: 8744388
    Abstract: A broadcast radio event such as a song or a concert promotion, and a plurality of radio data fields corresponding to the event such as RTplus information, are received at a device. A user selects to display broadcast radio options simultaneous with receiving the broadcast radio event. Then is displayed a set of user-selectable options, at least one o which is derived from at least one of the radio data fields. In various embodiments, each time a new set of radio data fields are received, the set of displayed options is updated, with certain provisions to ‘freeze’ the displayed set of options. Examples of a derived option include a link to an Internet page, a phone number or email address, and posting a time and place of an advertised event to a calendar. A method, device, computer program product, and apparatus are detailed.
    Type: Grant
    Filed: May 30, 2006
    Date of Patent: June 3, 2014
    Assignee: Nokia Corporation
    Inventors: Christian R. Kraft, Peter D. Nielsen, Hans-Christoph Quelle, Mikko Makipaa
  • Patent number: 8737992
    Abstract: In a signal processing method, an input signal is provided at an input to a receiver. A bandwidth of the receiver is controlled to a predetermined wideband setting. For band in a plurality of frequency bands, the input signal is processed at the receiver with a mixer, an amplifier, and a filter, to generate a first processed signal, and a power spectral density of the processed signal is generated over that frequency band, to provide a frequency domain signal for that frequency band. Based on the frequency domain signals corresponding to each frequency band in the plurality of frequency bands, a frequency domain representation of the processed signal is reconstructed over a reconstruction band having a bandwidth larger than the predetermined wideband setting. Based on the reconstructed frequency domain representation, a spectral component is identified corresponding to at least one cellular telephony access mode.
    Type: Grant
    Filed: December 3, 2012
    Date of Patent: May 27, 2014
    Assignee: Spreadtrum Communication USA Inc.
    Inventors: David Haub, Zhigang Xu
  • Patent number: 8717212
    Abstract: An improved quadrature bandpass-sampling delta-sigma analog-to-digital demodulator is provided, which includes a loop filter, an A/D responsive to the loop filter, and a first feedback D/A responsive to the A/D up-converted in frequency by a first multiplier and a clock. A first summing circuit is responsive to the first D/A and an RF input for providing an input to the loop filter. A plurality of feedback D/As is responsive to the A/D up-converted in different frequencies by a plurality of multipliers and a plurality of clocks for providing feedback inputs to the loop filter. The loop filter comprises a plurality of resonators arranged in cascade configuration, a plurality of analog mixers to provide frequency shifting of the error signals propagating through the resonators, and a plurality of summing circuits responsive to the feedback D/As.
    Type: Grant
    Filed: September 20, 2012
    Date of Patent: May 6, 2014
    Assignee: Phuong Huynh
    Inventor: Phuong Huynh
  • Patent number: 8712354
    Abstract: FM radio transmitter is being widely used in portable devices as a convenient way to output audio contents to ubiquitously available FM radio receivers in cars or homes. However, the signal from the FM radio transmitter may be interfering with the signal being broadcast by an FM radio station. A scan system is incorporated into the FM radio transmitter to quickly and reliably identify a vacant channel for the FM radio transmitter to use. The scan system measures on-channel and out-of-channel signal quality and selects a best channel for transmission based on the measured on-channel and out-of-channel signal quality. The scan system is also incorporated into an FM radio receiver to quickly and reliably tune to a valid channel. The scan system selects the valid channel based on the measured on-channel and out-of-channel signal quality.
    Type: Grant
    Filed: May 31, 2012
    Date of Patent: April 29, 2014
    Assignee: Quintic Holdings
    Inventors: Yifeng Zhang, Tracey Lee Chavers, Peiqi Xuan, Qifa Wu
  • Patent number: 8681762
    Abstract: A system comprises transceiver logic that receives signals on each of an array of frequencies. The transceiver logic is adapted to communicate using a first communication protocol. Processing logic couples to the transceiver logic. The processing logic identifies from among the array of frequencies a subset of shared frequencies that carry data transmitted using a second communication protocol. The processing logic adjusts frequency selection parameters in accordance with the identification. The processing logic uses the adjusted frequency selection parameters to select a target frequency from the array of frequencies to carry data.
    Type: Grant
    Filed: May 29, 2008
    Date of Patent: March 25, 2014
    Assignee: Texas Instruments Incorporated
    Inventor: Katrin Matthes
  • Patent number: RE45273
    Abstract: A transceiver system includes a first section coupled to a first antenna, a second section coupled to a second antenna, and a radio frequency (RF) unit. The first section includes a transmit path and a first receive path for a first (e.g., GSM) wireless system, a transmit path and a first receive path for a second (e.g., CDMA) wireless system, and a transmit/receive (T/R) switch that couples the signal paths to the first antenna. The second section includes a second receive path for the first wireless system and a second receive path for the second wireless system. The first and second receive paths for the first wireless system are for two frequency bands. The first and second receive paths for the second wireless system are for a single frequency band and provide receive diversity. The transceiver system may include a GPS receive path coupled to a third antenna.
    Type: Grant
    Filed: March 24, 2011
    Date of Patent: December 2, 2014
    Assignee: QUALCOMM Incorporated
    Inventor: Robert Lloyd Robinett