Automatic (e.g., Voice Operated) Patents (Class 455/79)
  • Patent number: 10334538
    Abstract: A terminal device for use in a wireless telecommunications system including plural terminal devices operable to communicate with one another in a device-to-device manner. The terminal device includes a controller and a transceiver configured to operate together to cause the terminal device to determine a transmission power level to use for device-to-device transmissions from the terminal device to restrict a number of other terminal devices able to receive the device-to-device transmissions to a restricted subset of the other terminal devices, and to transmit device-to-device communications using the determined transmission power level. The terminal device may determine the transmission power itself or from control signalling reads received from network infrastructure equipment, such as a base station or roadside unit.
    Type: Grant
    Filed: June 30, 2016
    Date of Patent: June 25, 2019
    Assignee: SONY CORPORATION
    Inventors: Jussi Tapani Kahtava, Hideji Wakabayashi
  • Patent number: 10305424
    Abstract: A solar photovoltaic system inspection apparatus sequentially applies AC inspection signals to a positive electrode and a negative electrode of a solar cell string, and is provided with: an impedance calculation unit configured to measure an indicator value when the signal is applied to the positive electrode, and an indicator value when the signal is applied to the negative electrode, the indicator values varying depending on the number of solar cell modules from the terminal to which the inspection signal was applied to a failure position; and a control unit configured to obtain the failure position based on the ratio of the indicator value measured when the inspection signal was applied to the positive electrode, to the indicator value measured when the inspection signal was applied to the negative electrode.
    Type: Grant
    Filed: October 16, 2015
    Date of Patent: May 28, 2019
    Assignee: OMRON Corporation
    Inventors: Tsuyoshi Takeuchi, Shuichi Misumi, Akihiko Sano, Kosuke Morita
  • Patent number: 10073074
    Abstract: A soil sensor includes a housing, an antenna disposed within the housing, a measurement circuit disposed within the housing and operatively connected to the antenna, the circuit configured to measure impedance of soil at a plurality of different frequencies using the antenna as a sensor electrode, and a wireless interface disposed within the housing and operatively connected to the antenna and configured for wireless communications over the antenna at its communications frequency.
    Type: Grant
    Filed: April 24, 2015
    Date of Patent: September 11, 2018
    Assignee: Iowa State University Research Foundation, Inc.
    Inventors: Ratnesh Kumar, Robert J. Weber, Gunjan Pandey
  • Patent number: 9497608
    Abstract: An apparatus and a method for triggering an emergency call in a motor vehicle, wherein the apparatus has at least one module for setting up communication with a device outside the vehicle, wherein at least one evaluation device is assigned to the module, wherein the module automatically transmits an emergency call when at least one predefined state or event is detected, wherein the module is assigned a manual emergency call button which is connected to the module via at least one connecting line, wherein the module checks the at least one connecting line, wherein the module automatically transmits an emergency call when a defect in the at least one connecting line is detected.
    Type: Grant
    Filed: October 27, 2014
    Date of Patent: November 15, 2016
    Assignee: VOLKSWAGEN AKTIENGESELLSCHAFT
    Inventors: Martin Vogler, Mirko Junge, Michael Fichte
  • Patent number: 9438183
    Abstract: Known types of amplifiers include so-called class D amplifiers, which first use a pulse-width modulator to convert an analog signal into a pulse-width modulated switching signal, which is then amplified and subsequently converted back into a continuously variable voltage via a filter. This type of amplifier is particularly energy-efficient and is therefore preferably used for high-power amplifiers. The invention relates to an amplifier device 1 comprising a control device (5), wherein the control device (5) has an input interface for an audio signal (2), and comprising an amplifier unit (9) for amplifying the audio signal (2, 8) downstream of the control device (5), wherein the control device (5) has a delay module (6) that is designed to transmit the audio signal (2), delayed by a delay value delta_t, to the amplifier unit (9) and to automatically and/or autonomously reduce the delay value delta_t from a starting value delta_t to a final value during an adaptation phase AP.
    Type: Grant
    Filed: January 14, 2013
    Date of Patent: September 6, 2016
    Assignee: Robert Bosch GmbH
    Inventor: Fabian Hoffmeister
  • Patent number: 9271179
    Abstract: A method for customized coexistence management based on user behavior is disclosed. The method can include a wireless communication device determining a behavior pattern of a user of the wireless communication device; assigning a priority level to each of a first application and a second application based on the behavior pattern; using a first wireless communication interface to support data communication for the first application; using a second wireless communication interface to support data communication for the second application concurrent with data communication for the first application over the first wireless communication interface; and managing in-device coexistence of the first wireless communication interface and the second wireless communication interface during concurrent data communication for the first application and the second application based on the priority level assigned to the first application and the priority level assigned to the second application.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: February 23, 2016
    Assignee: Apple Inc.
    Inventors: Ajoy K. Singh, Wen Zhao
  • Patent number: 9026064
    Abstract: A wireless communication node (10) dynamically estimates passive intermodulation (PIM) interference coupled into the node's receive path from the transmission of a composite signal through the node's transmit path. The node (10) then cancels the estimated PIM interference in the receive path. In some embodiments, the node dynamically estimates the PIM interference as a function of the composite signal that models PIM interference generation and coupling in the node (10) according to one or more coefficients (30). The coefficients (30) may be determined by transmitting a test signal (34) during a test stage, when the node (10) is not scheduled to receive any signal. Later, when the composite signal (18) is transmitted, the node (10) uses the coefficients (10) to dynamically estimate and cancel the resulting PIM interference.
    Type: Grant
    Filed: September 9, 2011
    Date of Patent: May 5, 2015
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Meng Wang, Shaohua Li, Robert Baldemair, Jung-Fu Cheng, Farshid Ghasemzadeh, Magnus Larsson, Johan Sköld
  • Publication number: 20150099475
    Abstract: A wireless communication apparatus includes a first wireless communication unit performing a first type wireless communication and a second wireless communication unit performing a second type wireless communication, an interference determination portion, and an interference suppression portion. The interference determination portion determines whether the first wireless communication unit is in an interference state based on a radio wave reception state of the first wireless communication unit acquired when the second wireless communication unit is in a transmitting state. In the interference state, radio waves received by the first wireless communication unit are interfered by the radio waves transmitted from the second wireless communication unit.
    Type: Application
    Filed: October 6, 2014
    Publication date: April 9, 2015
    Inventors: Tadao SUZUKI, Yasumune YUKIZAKI, Koutarou TAKABA, Yuji SUGIMOTO
  • Publication number: 20150024697
    Abstract: A wireless docking system in a shared radio spectrum environment includes a docking station (220) configured with a radio (224) connected to an antenna (222), a dockee (210) configured with a radio (214) connected to an antenna (212) and using a radio standard with a carrier sense mechanism for communications with the docking station, and a system to reduce sensitivity of the carrier sense mechanism in at least one of the radio (214) of the dockee (210) and the radio (224) of the docking station (220).
    Type: Application
    Filed: January 28, 2013
    Publication date: January 22, 2015
    Inventor: Koen Johanna Guillaume Holtman
  • Publication number: 20140273889
    Abstract: A radio receiver method of reducing second order distortion components involves at a first mixer, mixing an input signal with an oscillator signal to generate an I component of a received radio communication signal; at a second mixer, mixing the input signal with a phase shifted oscillator signal to generate a Q component of the received radio communication signal; computing an estimate of second order distortion as a function of the I and Q components of the received radio communication signal; and adjusting an operational parameter of the radio receiver to reduce the estimated value of second order distortion components. This abstract is not to be considered limiting, since other embodiments may deviate from the features described in this abstract.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Applicant: RESEARCH IN MOTION LIMITED
    Inventor: Tajinder MANKU
  • Patent number: 8838045
    Abstract: Embodiments disclosed herein relate to programmable duplexers. The frequency pass band of the programmable duplexer is changed according to a selection of a channel-pair selection to control or maximize the transition band between the receiver path and the transmitter path. The programmable duplexer permits selections of desired pass bands without the need for multiple duplexer filters. As an additional advantage, the transmission band requirements become less sensitive to manufacturing tolerances and temperature variations.
    Type: Grant
    Filed: December 3, 2010
    Date of Patent: September 16, 2014
    Assignee: RF Micro Devices, Inc.
    Inventors: Joshua J. Caron, Julio Costa, Todd Gillenwater
  • Publication number: 20140242924
    Abstract: A mode shifter connects via an input port to an antenna port of a transceiver. A port signal analyzer monitors the signal at the input port and informs a signal switch whether the signal power exceeds a threshold value. When the signal power does not exceed the threshold value, the signal switch connects the input port (and consequently the antenna port of the transceiver) to a receive path comprising a receive signal processor, an antenna selection processor, and an antenna port. When the signal exceeds the threshold value, the signal switch connects the input port (and consequently the antenna port of the transceiver) to a transmit path comprising a transmit signal processor, the antenna selection processor, and an antenna port.
    Type: Application
    Filed: February 26, 2013
    Publication date: August 28, 2014
    Applicant: INVERTIX CORPORATION
    Inventor: Brecken H. UHL
  • Patent number: 8731609
    Abstract: A mobile device, such as a cellular telephone includes a voice interface that includes one part that may not be specific to a particular carrier, and a second part that provides an interface to services that are specific to a carrier or to service or information providers that are not necessarily available with all carriers. A voice command interface provides easy access to the carrier services. The set of carrier services is optionally extendible by the carrier.
    Type: Grant
    Filed: August 9, 2011
    Date of Patent: May 20, 2014
    Assignee: Nuanace Communications, Inc.
    Inventors: Daniel L. Roth, Chris Reiner, Mark Furnari, Jordan Cohen
  • Publication number: 20140119244
    Abstract: Embodiments are directed to a circuit comprising separately tunable receive and transmit frequency bands, wherein the circuit is configured to minimize undesired transmitter signals in a receiver path by dynamically adjusting an input to a receiver low noise amplifier by using a transmit baseband conversion signal and a transmit output signal from a transmit power amplifier as feedback to the receiver low noise amplifier.
    Type: Application
    Filed: November 1, 2012
    Publication date: May 1, 2014
    Applicant: RESEARCH IN MOTION LIMITED
    Inventors: David Steer, Dongsheng Yu
  • Patent number: 8712456
    Abstract: A method and a system of channel detecting and reporting, a terminal, and a management center are provided. The method includes: a first access device of a terminal detects a channel status of one or more channels; and a second access device of the terminal reports a channel detection result detected by the first access device to destination equipment through an access network. The system includes a terminal and a management center. The terminal can access an access network through various access devices and report a channel detection result to the management center. The management center adjusts communication parameters of relevant equipment according to the detection result. The channel detection result can be reported in time, so that communication dead zones are prevented, and probability of long-term interference on hidden nodes in a communication system is reduced.
    Type: Grant
    Filed: January 21, 2011
    Date of Patent: April 29, 2014
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Shulan Feng, Jinnan Liu
  • Patent number: 8700081
    Abstract: Embodiments of the present invention are directed to determining whether to switch between group calls based on priority within a wireless communications system. In an embodiment, an announce message is received at a given access terminal that announces a second group session when the given access terminal is participating in the first group session. The given access terminal acquires one or more priority levels associated with one or more of the first and second group sessions. The access terminal determines whether to switch from the first group session to the second group session based on the one or more priority levels. The access terminal selectively switches from the first group session to the second group session based on the determination.
    Type: Grant
    Filed: March 9, 2010
    Date of Patent: April 15, 2014
    Assignee: QUALCOMM Incorporated
    Inventor: Mark A. Lindner
  • Patent number: 8688056
    Abstract: Methods and apparatus for selectively switching one or more antennas in a multiple-input, multiple-output (MIMO) antenna array so as to mitigate interference with another RF interface within the same space-constrained device, based on radio frequency isolation. In one embodiment, the MIMO interface comprises a WLAN interface having a 2×2 or 3×3 array of antennae which are placed in a wireless device in an asymmetric fashion with respect to the antenna of the second interface, and the other interface comprises a PAN (e.g., Bluetooth) interface operating in an overlapping frequency band (e.g., ISM band). When both interfaces are operating, interference is mitigated through selectively switching off one or more of the MIMO antennae, and using the remaining antenna(e) having the best isolation from the Bluetooth antennae.
    Type: Grant
    Filed: October 8, 2012
    Date of Patent: April 1, 2014
    Assignee: Apple Inc.
    Inventors: Camille Chen, Michael A. Robinson, Michael J. Giles
  • Publication number: 20140073267
    Abstract: Techniques to implement a filter for a selected signal path by reusing a circuit component in an unselected signal path are disclosed. In an exemplary design, an apparatus includes first, second, and third circuits. The first circuit passes a first radio frequency (RF) signal to an antenna when a first signal path is selected. The second circuit passes a second RF signal to the antenna when a second signal path is selected. The third circuit is selectively coupled to the first circuit, e.g., via a switch. The first and third circuits form a filter for the second RF signal (e.g., to attenuate a harmonic of the second RF signal) when the second signal path is selected and the first signal path is unselected. The first circuit may include a series inductor, and the third circuit may include a shunt capacitor.
    Type: Application
    Filed: October 16, 2012
    Publication date: March 13, 2014
    Applicant: QUALCOMM Incorporated
    Inventors: Jose Cabanillas, Aristotele Hadjichristos, Per O. Kristensen, Mohan V. Puntambekar
  • Publication number: 20130344821
    Abstract: A communication device comprising: a receiver operable to receive radio transmissions according to a first communication protocol; a transmitter operable to transmit radio transmissions according to a second communication protocol; and an arbiter connected to the receiver and transmitter; wherein the arbiter is configured to: receive from the transmitter an indication of a first transmit operation intended for performance during a first time period and one or more intended transmit characteristics of the first transmit operation, including a representation of the intended transmit power; determine whether the receiver intends to perform a communication operation during the first time period; determine in dependence on the transmit characteristics and the receive quality, a set of one or more threshold transmit characteristics for the first transmit operation; and cause the transmitter to proceed with the first transmit operation only if its transmit characteristics are constrained in accordance with the thres
    Type: Application
    Filed: June 20, 2012
    Publication date: December 26, 2013
    Applicant: Cambridge Silicon Radio Limited
    Inventors: Dean Armstrong, Thomas Christopher Grocutt
  • Publication number: 20130343245
    Abstract: RF signal amplifiers are provided that include an RF input port, a switching device having an input that is coupled to the RF input port, a first output and a second output, a first diplexer having an input that is coupled to both the first output of the switching device and the second output of the switching device, and a first RF output port that is coupled to an output of the first diplexer. These amplifiers further include an attenuator that is coupled between the second output of the switching device and the input of the first diplexer.
    Type: Application
    Filed: June 25, 2012
    Publication date: December 26, 2013
    Inventors: Shi Man Li, Robert R. Riggsby
  • Patent number: 8611876
    Abstract: A land-based or mobile phone and methods are provided for receiving inbound communications as either voice or text, and then based on the user's configuration settings, the inbound communication is provided to the user as it was received or is automatically converted into a format that is desired by the user. The phone also takes voice or text that is input by the user of the phone and converts the user's input to either voice or text based on the configuration settings stored in the user's contact list or otherwise. The outbound communication is configured according to how the intended recipient wants to receive a communication based on the configuration settings stored in the user's contact list or otherwise. The phone includes a controller that determines how the phone will handle and process inbound and outbound communications. The controller includes a speech recognition engine.
    Type: Grant
    Filed: October 8, 2010
    Date of Patent: December 17, 2013
    Inventor: Larry Miller
  • Publication number: 20130331044
    Abstract: The disclosed embodiments provide a system that uses a first antenna and a second antenna in a portable electronic device. During operation, the system receives a request to switch from the first antenna to the second antenna to transmit a signal to a cellular receiver. Next, the system loads a set of radio-frequency (RF) calibration values for the second antenna. Finally, the system performs the switch from the first antenna to the second antenna to transmit the signal, wherein the second antenna is operated using the RF calibration values after the switch.
    Type: Application
    Filed: August 29, 2012
    Publication date: December 12, 2013
    Applicant: APPLE INC.
    Inventors: Ming Hu, Haining Zhang, Xueting Liu
  • Publication number: 20130309982
    Abstract: A wireless communication apparatus is provided that includes a plurality of antennas and at least one receive or transmit circuit. The apparatus further includes a controller configured to: determine one or more performance characteristics associated with a first antenna while the circuit is connected to the first antenna; switch the circuit from the first antenna to a second antenna; determine one or more performance characteristics associated with the second antenna after the switch; compare the performance characteristics associated with the antennas; determine whether to maintain the switch to the second antenna or to switch the circuit back to the first antenna; and determine a duration of time to maintain a connection between the selected antenna and the circuit based, at least, on one or more performance characteristics. Other aspects, embodiments, and features are also claimed and described.
    Type: Application
    Filed: March 15, 2013
    Publication date: November 21, 2013
    Applicant: QUALCOMM Incorporated
    Inventors: Hongbo YAN, Daniel Fred Filipovic
  • Patent number: 8562432
    Abstract: Provided is a device and method for controlling game motions in a mobile terminal, having an audio processing unit for converting an input sound into a digital sound, a noise level measurement unit for measuring the noise level of the digital sound, and a controller for calculating a motion control level on the motions object corresponding to the measured noise level, and controlling the corresponding motion of the motions object based on the calculated motion control level. Accordingly, the motion control for the motions object of a game can be differentially controlled according to the level of the sound noise such as wind or sound outputted through the mouth of a user without manipulating the key button with fingers.
    Type: Grant
    Filed: December 14, 2006
    Date of Patent: October 22, 2013
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Yu Jin Kim, Eun Jung Lee
  • Publication number: 20130259102
    Abstract: A wireless communication device configured for reducing Tx leakage in a receive signal is described. The wireless communication device includes a transceiver chip. The transceiver chip includes a receiver, a feedback receiver and a transmitter. The wireless communication device also includes a Tx leakage signal reduction module. The Tx leakage signal reduction module reuses the feedback receiver.
    Type: Application
    Filed: February 15, 2013
    Publication date: October 3, 2013
    Applicant: QUALCOMM INCORPORATED
    Inventors: Prasad Srinivasa Siva Gudem, Ojas M. Choksi, Wei Zhuo
  • Publication number: 20130259099
    Abstract: A wireless communication device configured for reducing Tx leakage in a receive signal is described. The wireless communication device includes a transceiver chip. The transceiver chip includes a receiver, a feedback receiver and a transmitter. The wireless communication device also includes a Tx leakage signal reduction module. The Tx leakage signal reduction module reuses the feedback receiver.
    Type: Application
    Filed: December 3, 2012
    Publication date: October 3, 2013
    Applicant: QUALCOMM INCORPORATED
    Inventors: Prasad Srinivasa Siva Gudem, Ojas M Choksi, Wei Zhuo
  • Publication number: 20130260699
    Abstract: A wireless communication device configured for automatic calibration is described. The wireless communication device includes a testing load. The wireless communication device also includes a transceiver chip. The wireless communication device further includes a radio frequency connector switch that couples circuitry on the transceiver chip to one of the testing load, an external load and a radiating element.
    Type: Application
    Filed: October 4, 2012
    Publication date: October 3, 2013
    Applicant: QUALCOMM INCORPORATED
    Inventors: Udara C. Fernando, Puay H. See, Sudarsan Krishnan
  • Publication number: 20130225101
    Abstract: The disclosed invention relates to a transceiver system comprising a notch filter element configured to suppress transmitter blockers (i.e., transmitter interferer signals) within a reception path. In some embodiments, the transceiver front-end comprises a differential reception path, having a first differential branch and a second differential branch, configured to provide an RF differential input signal having a transmitter blocker to a transimpedance amplifier, comprising a first-order active filter and a notch filter element. The notch filter element comprises a stop band corresponding to a frequency of a transmitted signal, such that the notch filter element suppresses the transmitted blocker without degrading the signal quality of the received differential input signal.
    Type: Application
    Filed: February 27, 2012
    Publication date: August 29, 2013
    Applicant: Intel Mobile Communications GmbH
    Inventors: Umut Basaran, Josef Schmal, Stefan Herzinger, Herbert Stockinger, Volker Thomas
  • Publication number: 20130210375
    Abstract: The disclosed invention relates to a transceiver system configured to cancel RF second-order intermodulation distortion (IMD2) within a differential reception path. In some embodiments, the transceiver system has one or more common-mode attenuation elements that attenuate common-mode interferer signals within the differential reception path. The common-mode attenuation elements detect a common-mode interferer from one or more nodes within a transceiver system front-end. One or more properties of the detected common-mode interferer are adjusted and then fed into the differential reception path, where the adjusted common-mode signal attenuates the common-mode interferers. In other embodiments, the differential reception path has a tunable amplifying stage. The tunable amplifying stage has first and second amplifier elements that are independently operated to intentionally introduce an operating parameter mismatch between the elements.
    Type: Application
    Filed: February 14, 2012
    Publication date: August 15, 2013
    Applicant: Intel Mobile Communications GmbH
    Inventor: Krzysztof Dufrene
  • Patent number: 8498670
    Abstract: Disclosed is a method for recognizing a voice and converting it into a text, and more particularly, a method for preferentially voice-recognizing a word starting with a character inputted through a keypad before voice is inputted and converting it into a text, and a mobile terminal implementing such method. The mobile terminal includes a keypad to receive an input of a specific character from a user; a controller to recognize voice input from the user based on words starting with the specific character, and to convert the recognized voice into text; and a display to display the text under a control of the controller.
    Type: Grant
    Filed: April 17, 2009
    Date of Patent: July 30, 2013
    Assignee: LG Electronics Inc.
    Inventors: Sun-Hwa Cha, In-Jik Lee, Jae-Do Kwak, Jong-Keun Youn
  • Publication number: 20130183912
    Abstract: There is provided a baseband structure of a transceiver. In an embodiment, a baseband structure of a transceiver includes a Variable Gain Amplifier (VGA) configured to amplify an input signal by controlling a gain, one or more Fixed Gain Amplifiers (FGAs) connected in series to the VGA and configured to amplify an output signal of the VGA, and one or more selection switches configured to selectively operate the FGAs. In accordance with the present invention, since a plurality of FGAs is selectively driven according to a necessary gain and an LPFG includes an FGA, power consumption and the size of a chip can be reduced and the overall performance of a transceiver can be improved.
    Type: Application
    Filed: July 18, 2012
    Publication date: July 18, 2013
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Duong Quoc Hoang, Cheon Soo KIM, Pil Jae PARK, Min PARK, Hyun Kyu YU
  • Patent number: 8488750
    Abstract: A speech recognition process and system are used for interactive telecommunication. A caller is prompted for input. Each of the phrases represents a destination for routing the call. The response utterance is matched by the system to one of the phrases and the call is routed to the corresponding destination. If the call thereafter has been redirected to a destination representing another of the phrases, speech recognition training data are generated for mapping the utterance to the redirected destination.
    Type: Grant
    Filed: November 16, 2011
    Date of Patent: July 16, 2013
    Assignee: Verizon Patent and Licensing Inc.
    Inventor: Parind Poi
  • Publication number: 20130155911
    Abstract: A structure and method to reduce second order intermodulation (IM2) of a receiver in a transceiver is provided. Specifically, the output of a detector in a transmit power control loop is utilized to calculate IM2 and the value is subtracted from a receive path to mitigate IM2 in a wireless communication devices. Alternatively, the detector can be placed in one or more receive paths to include receiver front-end passband variation.
    Type: Application
    Filed: December 16, 2011
    Publication date: June 20, 2013
    Applicant: Broadcom Corporation
    Inventors: Masoud Kahrizi, Nooshin Vakilian, Farzad Etemadi
  • Patent number: 8385845
    Abstract: Embodiments include but are not limited to apparatuses and systems including a first active device located on a signal path between an antenna terminal and a transmit and/or receive (T/R) terminal, and a self-biasing shunt device coupled to the first active device and including a second active device having a DC-blocked source terminal and a non-DC-blocked drain terminal. Other embodiments may be described and claimed.
    Type: Grant
    Filed: October 9, 2009
    Date of Patent: February 26, 2013
    Assignee: Triquint Semiconductor, Inc.
    Inventor: Philippe Cortese
  • Patent number: 8380139
    Abstract: An exemplary radio frequency interface switching device includes a plurality of signal interfaces, a plurality of switches electrically connected to the signal interfaces, and a switch unit electrically connected to the switches. The signal interfaces are electrically connected with each other by operating different combinations of the switches and the switch unit to receive/send corresponding signals.
    Type: Grant
    Filed: November 11, 2009
    Date of Patent: February 19, 2013
    Assignees: Shenzhen Futaihong Precision Industry Co., Ltd., Chi Mei Communication Systems, Inc.
    Inventor: Jian-Yan Feng
  • Publication number: 20130035047
    Abstract: Methods and apparatus for selectively switching one or more antennas in a multiple-input, multiple-output (MIMO) antenna array so as to mitigate interference with another RF interface within the same space-constrained device, based on radio frequency isolation. In one embodiment, the MIMO interface comprises a WLAN interface having a 2×2 or 3×3 array of antennae which are placed in a wireless device in an asymmetric fashion with respect to the antenna of the second interface, and the other interface comprises a PAN (e.g., Bluetooth) interface operating in an overlapping frequency band (e.g., ISM band). When both interfaces are operating, interference is mitigated through selectively switching off one or more of the MIMO antennae, and using the remaining antenna(e) having the best isolation from the Bluetooth antennae.
    Type: Application
    Filed: October 8, 2012
    Publication date: February 7, 2013
    Applicant: Apple Inc.
    Inventor: Apple Inc.
  • Publication number: 20130028148
    Abstract: A mobile terminal includes a main body and a wireless communication module mounted in the main body. The wireless communication module includes a first transceiver including transmit and receive terminals of a first signal, a second transceiver including transmit and receive terminals of a second signal, a first duplexer connected to the transmit terminal of the first signal and the receive terminal of the second signal to separate a transmit frequency of the first signal from a receive frequency of the second signal, and a second duplexer connected to the receive terminal of the first signal and the transmit terminal of the second signal to separate a receive frequency of the first signal from a transmit frequency of the second signal.
    Type: Application
    Filed: May 10, 2012
    Publication date: January 31, 2013
    Applicant: LG ELECTRONICS INC.
    Inventors: Won Heo, Mansoo Sin, Jeunguk Ha, Namsoo Kim
  • Publication number: 20130012143
    Abstract: In one embodiment, a mobile communication device comprises a first antenna; a second antenna; a transceiver for processing a received signal and generating a transmit signal; and a controller, based on a detected condition of one of the first antenna or second antenna, for selecting the other one of said first antenna or said second antenna and coupling the transmit signal to the selected other one of said first antenna or said second antenna.
    Type: Application
    Filed: September 13, 2012
    Publication date: January 10, 2013
    Applicant: Research In Motion Limited
    Inventors: Vytautas Robertas Kezys, Yihong Qi
  • Publication number: 20120295558
    Abstract: A wireless communication node (10) dynamically estimates passive intermodulation (PIM) interference coupled into the node's receive path from the transmission of a composite signal through the node's transmit path. The node (10) then cancels the estimated PIM interference in the receive path. In some embodiments, the node dynamically estimates the PIM interference as a function of the composite signal that models PIM interference generation and coupling in the node (10) according to one or more coefficients (30). The coefficients (30) may be determined by transmitting a test signal (34) during a test stage, when the node (10) is not scheduled to receive any signal. Later, when the composite signal (18) is transmitted, the node (10) uses the coefficients (10) to dynamically estimate and cancel the resulting PIM interference.
    Type: Application
    Filed: September 9, 2011
    Publication date: November 22, 2012
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Meng Wang, Shaohua Li, Robert Baldemair, Jung-fu Cheng, Farshid Ghasemzadeh, Magnus Larsson, Johan Sköld
  • Publication number: 20120282867
    Abstract: A transceiver arrangement includes a first receive path including a first connection and a first receive amplifier, and a second receive path including a second connection, a second receive amplifier, and a frequency conversion device. The transceiver also includes a controllable coupling device configured to couple an output of the first receive amplifier to an input of the frequency conversion device on the second signal path, and a control circuit configured to provide a control signal to the coupling device for selectively combining signals delivered by the first and second receive amplifiers in the correct phase based on a parameter which is derived from a signal present at the first connection or second connection, or both. The parameter derived from the received signal represents whether a signal strength of the received signal or a signal quality of the received signal exceeds a first predetermined threshold.
    Type: Application
    Filed: July 16, 2012
    Publication date: November 8, 2012
    Applicant: Intel Mobile Communications GmbH
    Inventor: Zdravko Boos
  • Publication number: 20120252376
    Abstract: A wireless communication device avoids unnecessary reduction of transmission capacity of a data signal to ensure the reliability of a pilot signal. A determination unit determines a reception modulation method for a received data signal according to the state of the transmission line. A transmission circuit generates a first pilot signal indicating the reception modulation method determined by the determination unit and, after adding an error correction code, modulates and transmits the first pilot signal. A reception unit receives a second pilot signal indicating a transmission modulation method that is the method for modulating a transmitted data signal. A switching unit, in accordance with the transmission modulation method indicated by the second pilot signal received by the reception unit, switches at least one of the modulation method of the first pilot signal transmitted by the transmission circuit and the redundancy of the error correction code of the first pilot signal.
    Type: Application
    Filed: November 30, 2010
    Publication date: October 4, 2012
    Applicant: NEC CORPORATION
    Inventor: Masaki Ichikawa
  • Patent number: 8280316
    Abstract: In a wireless transmitting/receiving device of TDD system etc., a transmission signal is detected on the transmitting side in a specified transmission period, a signal reflected from an antenna through a circulator is detected on the receiving side in the transmission period and a reception signal is detected on the receiving side in a specified reception period. In this case, in a part of the transmission period a transmission signal having been detected on the transmitting side is selected while in the remaining part of the transmission period a reflection signal having been detected on the receiving side through a circulator from an antenna is selected, and in the reception period a reception signal having been detected on the receiving side through the circulator from the antenna is selected and outputted.
    Type: Grant
    Filed: February 1, 2010
    Date of Patent: October 2, 2012
    Assignee: Fujitsu Limited
    Inventors: Yoichi Endo, Hideyuki Kannari
  • Publication number: 20120225626
    Abstract: The present invention concerns a system and associated method for providing attenuation of a received signal in a two-way communication circuit without the use of a separate switchable attenuator. Specifically, the attenuation provided by a transmit/receive switch set to the transmit position during reception is used to provide attenuation to a signal reception path.
    Type: Application
    Filed: November 17, 2009
    Publication date: September 6, 2012
    Applicant: THOMSON LICENSING
    Inventors: David White, Alexander Sarapin
  • Patent number: 8249525
    Abstract: A mobile electronic device stores a standard voice command and a voice command identification standard. When an incoming call is regarded as a missed call and a voice command is detected, the mobile electronic device compares characteristics of the voice command with characteristics of the standard voice command, so as to determine if the voice command satisfies the voice command identification standard. The mobile electronic device further activates a ringing circuit to play a predetermined ring tone in response that the voice command satisfies the voice command identification standard, so as to help a user locate the mobile electronic device even if the mobile electronic device is in a silent mode.
    Type: Grant
    Filed: September 22, 2009
    Date of Patent: August 21, 2012
    Assignee: Chi Mei Communication Systems, Inc.
    Inventor: Tang-Yu Chang
  • Patent number: 8200168
    Abstract: A programmable antenna assembly includes a configurable antenna structure, a configurable antenna interface, and a control module. The configurable antenna structure includes a plurality of antenna elements that, in response to an antenna configuration signal, are configured elements into at least one antenna. The configurable antenna interface module is coupled to the at least one antenna and, based on an antenna interface control signal, provides at least one of an impedance matching circuit and a bandpass filter. The control module is coupled to generate the antenna configuration signal and the antenna interface control signal in accordance with a first frequency band and a second frequency band such that the at least one antenna facilitates at least one of transmitting and receiving a first RF signal within the first frequency band and facilitates at least one of transmitting and receiving a second RF signal within the second frequency band.
    Type: Grant
    Filed: August 23, 2011
    Date of Patent: June 12, 2012
    Assignee: Broadcom Corporation
    Inventors: Ahmadreza (Reza) Rofougaran, Maryam Rofougaran
  • Publication number: 20120135694
    Abstract: In an example embodiment, an apparatus, comprising a first wireless transceiver, a first directional antenna coupled to the first wireless transceiver, a second wireless transceiver, a second directional antenna coupled to the second wireless transceiver, and control logic coupled to the first wireless transceiver and the second wireless transceiver. The first wireless transceiver and second wireless transceiver can concurrently receive wireless signals that are spatially separated. The first wireless transceiver asserts a signal while communicating with another wireless device. The control logic is configured to prevent the second wireless transceiver from transmitting while the first wireless transceiver is asserting the signal.
    Type: Application
    Filed: February 6, 2012
    Publication date: May 31, 2012
    Inventors: Robert Meier, Stephen Saliga, Johannes Kruys, David Petsko
  • Patent number: 8185062
    Abstract: A configurable antenna assembly includes an antenna structure and a configurable antenna interface. The antenna structure is operable, in a first mode, to provide a first antenna structure and a second antenna structure, wherein the first antenna structure receives an inbound radio frequency (RF) signal and the second antenna structure transmits an outbound RF signal. The configurable antenna interface is operable in the first mode to provide a first antenna interface and a second antenna interface, wherein the first antenna interface is configured in accordance with a receive adjust signal to adjust at least one of phase and amplitude of the inbound RF signal, and wherein the second antenna interface is configured in accordance with a transmit adjust signal to adjust at least one of phase and amplitude of the outbound RF signal.
    Type: Grant
    Filed: March 28, 2011
    Date of Patent: May 22, 2012
    Assignee: Broadcom Corporation
    Inventors: Ahmadreza (Reza) Rofougaran, Maryam Rofougaran
  • Patent number: 8095081
    Abstract: A device for hands-free push-to-talk functionality may include a push-to-talk sensor or switch operable by at least one of a preset audible signal, a predetermined movement of the sensor or switch, air pressure or the like. The device may also include means to control operation of a communications device in response to signals from the push-to-talk sensor or switch.
    Type: Grant
    Filed: April 29, 2004
    Date of Patent: January 10, 2012
    Assignee: Sony Ericsson Mobile Communications AB
    Inventor: Scott LaDell Vance
  • Patent number: 8068791
    Abstract: A Time Division Duplex (TDD) switch of a TDD wireless communication system is provided. By its unique arrangement, the TDD switch protects a receiver of the wireless system.
    Type: Grant
    Filed: April 23, 2007
    Date of Patent: November 29, 2011
    Assignee: Samsung Electronics Co., Ltd
    Inventor: Seong-Hun Kim
  • Patent number: 8045933
    Abstract: Mobile phone terminal, having a transmitter stage, a receiver stage and an antenna switch-over and adapter stage which each have an arrangement of passive structural elements, which arrangement is assigned a multiplicity of electrostatic-mechanical microswitches or microrelays and which can be programmed by actuating a predetermined configuration of the microswitches or microrelays in, in each case, at least one functional parameter, in particular the frequency characteristic, and a programmable control unit.
    Type: Grant
    Filed: June 25, 2009
    Date of Patent: October 25, 2011
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Bernd Bienek, Dietmar Gapski, Klaus-Dieter Pillekamp, Xihe Tuo