Automatic (e.g., Voice Operated) Patents (Class 455/79)
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Patent number: 12166729Abstract: Methods and devices for reducing coupling of RF frequency components between different bands of an RF system are presented. According to one aspect, a notch filter having a notch centered at a harmonic of a fundamental frequency of a first band transmit side is coupled to an output of an LNA of the first band. According to another aspect, the harmonic is a second harmonic, a third harmonic or higher order harmonics. According to another aspect, the notch filter includes a plurality of notches at respective plurality of harmonics. According to a further aspect, the notch has an attenuation of 30 dB or greater at the second harmonic and 10 dB or greater at the third harmonic. Further included is a method for reducing coupling of harmonics of signals transmitted in the first band into a receive path of the second band, thereby increasing noise figure/sensitivity performances of the receive path.Type: GrantFiled: February 18, 2022Date of Patent: December 10, 2024Assignee: pSemi CorporationInventors: Joseph Golat, David Kovac
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Patent number: 11888573Abstract: An apparatus comprises means for: determining that one or more antenna elements of an antenna array are being disrupted; and updating one or more parameters associated with one or more antenna elements in response to determining that one or more antenna elements of said array are being disrupted.Type: GrantFiled: March 5, 2019Date of Patent: January 30, 2024Assignee: Nokia Technologies OyInventors: Benny Vejlgaard, Simon Svendsen, Nuno Manuel Kiilerich Pratas
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Patent number: 11400963Abstract: The derail warning system may include a solar-powered LED indicator for derail or switch. The derail warning system may also include an orientation sensor that automatically turns on depending on the orientation of the derail (up or down), derail metal flag, or switch indicator flag. The derail warning system may bring more visibility with a 360-degree LED that is solar powered and may detect orientation and turn on based on the position of the derail, switch, or flag. The derail warning system may use a unique acceleration sensor or g-sensor that can detect orientation movement and automatically turn on or off and be fully charged to operate day or night. The derail warning system may also include a data-logging microprocessor to determine a time stamp of position and location.Type: GrantFiled: August 29, 2019Date of Patent: August 2, 2022Assignee: Focused Technology Solutions, Inc.Inventors: Peter M. Bartek, Timothy J. Benjamin, Corey Dash, Philip Anthony Mooney, Jason Neil Smith
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Patent number: 11025464Abstract: A system for reducing or eliminating PIM interference in an RX signal is disclosed. The system is configured to use RX and TX signals to generate a frequency-shifted output that includes a RX carrier signal component of the RX signal, as well as first and second TX carrier signal components of the TX signal, positioned in a frequency spectrum so that a frequency spacing between the first and the second TX carrier signal components and a frequency spacing between the RX carrier signal component and a closest one of the first and the TX second carrier signal components is smaller than a frequency spacing between the first and the second TX carrier signal components in the TX signal. The system may then use the frequency-shifted output to generate an estimate of a PIM signal component in the RX signal.Type: GrantFiled: June 2, 2020Date of Patent: June 1, 2021Assignee: ANALOG DEVICES INTERNATIONAL UNLIMITED COMPANYInventors: Dong Chen, Yong Zhang, Francis T. Kearney, Xiuhong Lu
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Patent number: 10615841Abstract: Described herein are radio-frequency (RF) modules that include shielding for improved RF performance. The RF modules including a packaging substrate with a receiving system implemented thereon. The RF module includes a shield implemented to provide RF shielding for at least a portion of the receiving system. The receiving system can include any combination of pre-amplifier or post-amplifier bandpass filters, amplifiers, switching networks, impedance matching components, phase-shifting components, input multiplexers, and output multiplexers. The shielding can include a conductive layer within a conformal shielding on an upper side and side walls of the RF module. The shielding can be an overmold formed over the packaging substrate. The conductive layer can be connected to one or more ground planes. The packaging substrate can include contact features on an underside of the substrate for mounting an underside component.Type: GrantFiled: February 5, 2019Date of Patent: April 7, 2020Assignee: SKYWORKS SOLUTIONS, INC.Inventors: Yi Liu, Anthony James Lobianco, Matthew Sean Read, Hoang Mong Nguyen, Howard E. Chen, Stephane Richard Marie Wloczysiak, William J. Domino, Bipul Agarwal
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Patent number: 10334538Abstract: 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: GrantFiled: June 30, 2016Date of Patent: June 25, 2019Assignee: SONY CORPORATIONInventors: Jussi Tapani Kahtava, Hideji Wakabayashi
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Patent number: 10305424Abstract: 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: GrantFiled: October 16, 2015Date of Patent: May 28, 2019Assignee: OMRON CorporationInventors: Tsuyoshi Takeuchi, Shuichi Misumi, Akihiko Sano, Kosuke Morita
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Patent number: 10073074Abstract: 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: GrantFiled: April 24, 2015Date of Patent: September 11, 2018Assignee: Iowa State University Research Foundation, Inc.Inventors: Ratnesh Kumar, Robert J. Weber, Gunjan Pandey
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Patent number: 9497608Abstract: 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: GrantFiled: October 27, 2014Date of Patent: November 15, 2016Assignee: VOLKSWAGEN AKTIENGESELLSCHAFTInventors: Martin Vogler, Mirko Junge, Michael Fichte
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Patent number: 9438183Abstract: 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: GrantFiled: January 14, 2013Date of Patent: September 6, 2016Assignee: Robert Bosch GmbHInventor: Fabian Hoffmeister
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Patent number: 9271179Abstract: 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: GrantFiled: September 30, 2013Date of Patent: February 23, 2016Assignee: Apple Inc.Inventors: Ajoy K. Singh, Wen Zhao
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Patent number: 9026064Abstract: 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: GrantFiled: September 9, 2011Date of Patent: May 5, 2015Assignee: Telefonaktiebolaget L M Ericsson (publ)Inventors: Meng Wang, Shaohua Li, Robert Baldemair, Jung-Fu Cheng, Farshid Ghasemzadeh, Magnus Larsson, Johan Sköld
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Publication number: 20150099475Abstract: 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: ApplicationFiled: October 6, 2014Publication date: April 9, 2015Inventors: Tadao SUZUKI, Yasumune YUKIZAKI, Koutarou TAKABA, Yuji SUGIMOTO
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Publication number: 20150024697Abstract: 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: ApplicationFiled: January 28, 2013Publication date: January 22, 2015Inventor: Koen Johanna Guillaume Holtman
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Publication number: 20140273889Abstract: 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: ApplicationFiled: March 15, 2013Publication date: September 18, 2014Applicant: RESEARCH IN MOTION LIMITEDInventor: Tajinder MANKU
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Patent number: 8838045Abstract: 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: GrantFiled: December 3, 2010Date of Patent: September 16, 2014Assignee: RF Micro Devices, Inc.Inventors: Joshua J. Caron, Julio Costa, Todd Gillenwater
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Publication number: 20140242924Abstract: 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: ApplicationFiled: February 26, 2013Publication date: August 28, 2014Applicant: INVERTIX CORPORATIONInventor: Brecken H. UHL
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Patent number: 8731609Abstract: 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: GrantFiled: August 9, 2011Date of Patent: May 20, 2014Assignee: Nuanace Communications, Inc.Inventors: Daniel L. Roth, Chris Reiner, Mark Furnari, Jordan Cohen
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Publication number: 20140119244Abstract: 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: ApplicationFiled: November 1, 2012Publication date: May 1, 2014Applicant: RESEARCH IN MOTION LIMITEDInventors: David Steer, Dongsheng Yu
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Patent number: 8712456Abstract: 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: GrantFiled: January 21, 2011Date of Patent: April 29, 2014Assignee: Huawei Technologies Co., Ltd.Inventors: Shulan Feng, Jinnan Liu
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Patent number: 8700081Abstract: 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: GrantFiled: March 9, 2010Date of Patent: April 15, 2014Assignee: QUALCOMM IncorporatedInventor: Mark A. Lindner
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Patent number: 8688056Abstract: 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: GrantFiled: October 8, 2012Date of Patent: April 1, 2014Assignee: Apple Inc.Inventors: Camille Chen, Michael A. Robinson, Michael J. Giles
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Publication number: 20140073267Abstract: 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: ApplicationFiled: October 16, 2012Publication date: March 13, 2014Applicant: QUALCOMM IncorporatedInventors: Jose Cabanillas, Aristotele Hadjichristos, Per O. Kristensen, Mohan V. Puntambekar
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Publication number: 20130344821Abstract: 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 thresType: ApplicationFiled: June 20, 2012Publication date: December 26, 2013Applicant: Cambridge Silicon Radio LimitedInventors: Dean Armstrong, Thomas Christopher Grocutt
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Publication number: 20130343245Abstract: 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: ApplicationFiled: June 25, 2012Publication date: December 26, 2013Inventors: Shi Man Li, Robert R. Riggsby
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Patent number: 8611876Abstract: 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: GrantFiled: October 8, 2010Date of Patent: December 17, 2013Inventor: Larry Miller
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Publication number: 20130331044Abstract: 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: ApplicationFiled: August 29, 2012Publication date: December 12, 2013Applicant: APPLE INC.Inventors: Ming Hu, Haining Zhang, Xueting Liu
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Publication number: 20130309982Abstract: 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: ApplicationFiled: March 15, 2013Publication date: November 21, 2013Applicant: QUALCOMM IncorporatedInventors: Hongbo YAN, Daniel Fred Filipovic
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Patent number: 8562432Abstract: 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: GrantFiled: December 14, 2006Date of Patent: October 22, 2013Assignee: Samsung Electronics Co., LtdInventors: Yu Jin Kim, Eun Jung Lee
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Publication number: 20130260699Abstract: 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: ApplicationFiled: October 4, 2012Publication date: October 3, 2013Applicant: QUALCOMM INCORPORATEDInventors: Udara C. Fernando, Puay H. See, Sudarsan Krishnan
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Publication number: 20130259102Abstract: 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: ApplicationFiled: February 15, 2013Publication date: October 3, 2013Applicant: QUALCOMM INCORPORATEDInventors: Prasad Srinivasa Siva Gudem, Ojas M. Choksi, Wei Zhuo
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Publication number: 20130259099Abstract: 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: ApplicationFiled: December 3, 2012Publication date: October 3, 2013Applicant: QUALCOMM INCORPORATEDInventors: Prasad Srinivasa Siva Gudem, Ojas M Choksi, Wei Zhuo
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SECOND-ORDER FILTER WITH NOTCH FOR USE IN RECEIVERS TO EFFECTIVELY SUPPRESS THE TRANSMITTER BLOCKERS
Publication number: 20130225101Abstract: 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: ApplicationFiled: February 27, 2012Publication date: August 29, 2013Applicant: Intel Mobile Communications GmbHInventors: Umut Basaran, Josef Schmal, Stefan Herzinger, Herbert Stockinger, Volker Thomas -
Publication number: 20130210375Abstract: 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: ApplicationFiled: February 14, 2012Publication date: August 15, 2013Applicant: Intel Mobile Communications GmbHInventor: Krzysztof Dufrene
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Patent number: 8498670Abstract: 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: GrantFiled: April 17, 2009Date of Patent: July 30, 2013Assignee: LG Electronics Inc.Inventors: Sun-Hwa Cha, In-Jik Lee, Jae-Do Kwak, Jong-Keun Youn
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Publication number: 20130183912Abstract: 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: ApplicationFiled: July 18, 2012Publication date: July 18, 2013Applicant: Electronics and Telecommunications Research InstituteInventors: Duong Quoc Hoang, Cheon Soo KIM, Pil Jae PARK, Min PARK, Hyun Kyu YU
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Patent number: 8488750Abstract: 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: GrantFiled: November 16, 2011Date of Patent: July 16, 2013Assignee: Verizon Patent and Licensing Inc.Inventor: Parind Poi
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Publication number: 20130155911Abstract: 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: ApplicationFiled: December 16, 2011Publication date: June 20, 2013Applicant: Broadcom CorporationInventors: Masoud Kahrizi, Nooshin Vakilian, Farzad Etemadi
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Patent number: 8385845Abstract: 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: GrantFiled: October 9, 2009Date of Patent: February 26, 2013Assignee: Triquint Semiconductor, Inc.Inventor: Philippe Cortese
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Patent number: 8380139Abstract: 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: GrantFiled: November 11, 2009Date of Patent: February 19, 2013Assignees: Shenzhen Futaihong Precision Industry Co., Ltd., Chi Mei Communication Systems, Inc.Inventor: Jian-Yan Feng
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Publication number: 20130035047Abstract: 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: ApplicationFiled: October 8, 2012Publication date: February 7, 2013Applicant: Apple Inc.Inventor: Apple Inc.
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Publication number: 20130028148Abstract: 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: ApplicationFiled: May 10, 2012Publication date: January 31, 2013Applicant: LG ELECTRONICS INC.Inventors: Won Heo, Mansoo Sin, Jeunguk Ha, Namsoo Kim
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Publication number: 20130012143Abstract: 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: ApplicationFiled: September 13, 2012Publication date: January 10, 2013Applicant: Research In Motion LimitedInventors: Vytautas Robertas Kezys, Yihong Qi
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Publication number: 20120295558Abstract: 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: ApplicationFiled: September 9, 2011Publication date: November 22, 2012Applicant: Telefonaktiebolaget LM Ericsson (publ)Inventors: Meng Wang, Shaohua Li, Robert Baldemair, Jung-fu Cheng, Farshid Ghasemzadeh, Magnus Larsson, Johan Sköld
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Publication number: 20120282867Abstract: 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: ApplicationFiled: July 16, 2012Publication date: November 8, 2012Applicant: Intel Mobile Communications GmbHInventor: Zdravko Boos
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Publication number: 20120252376Abstract: 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: ApplicationFiled: November 30, 2010Publication date: October 4, 2012Applicant: NEC CORPORATIONInventor: Masaki Ichikawa
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Patent number: 8280316Abstract: 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: GrantFiled: February 1, 2010Date of Patent: October 2, 2012Assignee: Fujitsu LimitedInventors: Yoichi Endo, Hideyuki Kannari
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Publication number: 20120225626Abstract: 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: ApplicationFiled: November 17, 2009Publication date: September 6, 2012Applicant: THOMSON LICENSINGInventors: David White, Alexander Sarapin
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Patent number: 8249525Abstract: 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: GrantFiled: September 22, 2009Date of Patent: August 21, 2012Assignee: Chi Mei Communication Systems, Inc.Inventor: Tang-Yu Chang
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Patent number: 8200168Abstract: 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: GrantFiled: August 23, 2011Date of Patent: June 12, 2012Assignee: Broadcom CorporationInventors: Ahmadreza (Reza) Rofougaran, Maryam Rofougaran