Receiver Circuitry Patents (Class 367/135)
  • Patent number: 9354295
    Abstract: Systems, methods, and apparatus for matching pair-wise differences (e.g., phase delay measurements) to an inventory of source direction candidates, and application of pair-wise source direction estimates, are described.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: May 31, 2016
    Assignee: QUALCOMM Incorporated
    Inventors: Lae-Hoon Kim, Erik Visser
  • Patent number: 9331792
    Abstract: A receiver of the present invention includes a microphone, an unnecessary signal remover, and an FM detector. The microphone receives a transmission signal generated by frequency modulating a signal in a frequency band that is receivable by the microphone, on the basis of transmission data. The unnecessary signal remover removes unnecessary signal components by processing the received signal from the microphone. The FM detector restores transmission data by performing FM detection of the received signal from which unnecessary signal components were removed by the unnecessary signal remover.
    Type: Grant
    Filed: January 31, 2013
    Date of Patent: May 3, 2016
    Assignees: ADC TECHNOLOGY INC., SYSTEM DESIGN CORP.
    Inventors: Mitsuhiro Iida, Tsutomu Adachi, Tomoyoshi Yokoi, Shigeru Hayashi, Takezumi Kondo, Tatsumi Kuroda, Takeo Nozawa, Hiroshi Maekawa, Kenshi Takenaka, Tsuyoshi Kawanishi, Kenji Mizuno, Hideya Fujimaki
  • Patent number: 9240053
    Abstract: An apparatus and a method are disclosed for tracking a plurality of targets (e.g. land-based vehicles). The method can include: for a first time-step, estimating a state of each respective target; at a second time-step, measuring values for a state of each target; for the second time-step, estimating a state of each target using the estimated target states for the first time-step; updating the estimated target states for the second time-step by performing a Joint Probabilistic Data Association process using the measured values; and performing an identity management process to estimate a probability that a particular state measurement corresponds to a particular.
    Type: Grant
    Filed: March 8, 2011
    Date of Patent: January 19, 2016
    Assignee: BAE Systems plc
    Inventors: George Morgan Mathews, David Nicholson
  • Patent number: 9239374
    Abstract: A beamforming method according to the present invention is a method of processing echo signals of a target region which are obtained from a probe including a plurality of receiving elements arrayed on a predetermined line. The beamforming method includes the following steps (S1 to S3). At S1, seed beams are formed from echo signals received by at least two receiving elements from among the plurality of receiving elements. At S2, a main beam and sub beams are formed by synthesizing at least one of the seed beams. At S3, a narrow beam for the target region is formed by multiplying the sub beams by respective predetermined coefficients and subtracting the multiplied sub beams from the main beam. Here, an signal intensity for the target region regarding the main beam is higher than a signal intensity for the target region regarding each of the sub beams.
    Type: Grant
    Filed: November 9, 2011
    Date of Patent: January 19, 2016
    Assignee: KONICA MINOLTA, INC.
    Inventors: Mineo Tsushima, Yasuhito Watanabe, Takeo Kanamori
  • Patent number: 9189783
    Abstract: The invention belongs to the field of systems for provision of computer-supported transactions with the use of a mobile phone, more exactly to the field of enabling universal communication between a telephone device, different transaction terminals and different servers including bank servers for carrying out certain transactions, considering all the security requirements against unauthorized access to an individual bank account or other user account.
    Type: Grant
    Filed: July 16, 2010
    Date of Patent: November 17, 2015
    Assignee: MARGENTO R&D D.O.O
    Inventors: Amor Chowdhury, Milos Urbanija, Bojan Kotnik, Dani Alyamour
  • Patent number: 9110862
    Abstract: A computer-implemented method to characterize a signal structure is provided. The method may receive a first set of time-dependent data vectors; select a sample size of data vectors; determine a minimum number of lags to process to characterize the first set of data vectors; calculate a cross-product term for each data vector in the sample size for each lag, a mean value and a variance value based on the sum of the cross-product term for each lag; calculate a circular correlation function for each lag; determine an upper and a lower correlation bound for the circular correlation based on the mean value, the variance value, and a desired false alarm rate; and characterize the signal structure based on the number of calculated circular correlation functions that exceed the upper or lower correlation bounds so as to generate a signal characterization data signal.
    Type: Grant
    Filed: July 30, 2012
    Date of Patent: August 18, 2015
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Francis J. O'Brien, Jr., Nathan Johnnie, Aimee M. Ross
  • Patent number: 9113241
    Abstract: Disclosed herein is a noise removing apparatus, including: an object sound emphasis section adapted to carry out an object sound emphasis process for observation signals of first and second microphones to produce an object sound estimation signal; a noise estimation section adapted to carry out a noise estimation process for the observation signals to produce a noise estimation signal; a post filtering section adapted to remove noise components remaining in the object sound estimation signal using the noise estimation signal; a correction coefficient calculation section adapted to calculate, for each frequency, a correction coefficient for correcting the post filtering process based on the object sound estimation signal and the noise estimation signal; and a correction coefficient changing section adapted to change those of the correction coefficients which belong to a frequency band suffering from spatial aliasing such that a peak appearing at a particular frequency is suppressed.
    Type: Grant
    Filed: September 2, 2011
    Date of Patent: August 18, 2015
    Assignee: Sony Corporation
    Inventors: Keiichi Osako, Toshiyuki Sekiya, Ryuichi Namba, Mototsugu Abe
  • Patent number: 9099635
    Abstract: An ultrasonic transducer element chip includes a substrate, a plurality of ultrasonic transducer elements and a plate-shaped member. The substrate includes a partition wall section defining a plurality of openings arranged in an array pattern. A wall thickness of the partition wall section is smaller than a wall height of partition wall section. Each of the ultrasonic transducer elements is provided in each of the openings. The plate-shaped member is fixed on a surface of the substrate opposite to a surface of the substrate on which the ultrasonic transducer elements are provided. The plate-shaped member covers at least one of the openings in a plan view seen along a thickness direction of the substrate.
    Type: Grant
    Filed: February 19, 2013
    Date of Patent: August 4, 2015
    Assignee: Seiko Epson Corporation
    Inventors: Tomoaki Nakamura, Jiro Tsuruno, Kanechika Kiyose
  • Patent number: 9089872
    Abstract: An ultrasonic transducer element chip includes a substrate, ultrasonic transducer elements and a reinforcing member. The substrate defines openings arranged in an array pattern. The ultrasonic transducer elements are respectively disposed at the openings on a first surface of the substrate. The reinforcing member is fixed on a second surface of the substrate opposite to the first surface of the substrate. The reinforcing member includes linear groove parts formed on a surface of the reinforcing member fixed on the substrate so that internal spaces of the openings and an external space of the substrate are in communication with each other via the linear groove parts. The linear groove parts extend along a plane of the surface of the reinforcing member, and they are arranged at an interval in a first direction smaller than a width of each opening on the second surface of the substrate in the first direction.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: July 28, 2015
    Assignee: Seiko Epson Corporation
    Inventors: Tomoaki Nakamura, Jiro Tsuruno, Kanechika Kiyose
  • Patent number: 9079220
    Abstract: An ultrasonic transducer element chip includes a substrate, a plurality of ultrasonic transducer elements, a reinforcing member and a ventilation passage. The substrate defines a plurality of openings arranged in an array pattern. The ultrasonic transducer elements are respectively disposed at the openings on a first surface of the substrate. The reinforcing member is fixed on a second surface of the substrate opposite to the first surface of the substrate to reinforce the substrate. Through the ventilation passage, internal spaces of the openings and an external space of the substrate are in communication with each other.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: July 14, 2015
    Assignee: Seiko Epson Corporation
    Inventors: Tomoaki Nakamura, Jiro Tsuruno, Kanechika Kiyose
  • Publication number: 20150117155
    Abstract: Provided is an acoustic processing apparatus capable of optional sound shielding that may selectively control a sound entering an acoustically shielded interior of a building or a vehicle and form a pleasant acoustic environment, including an acoustic receiver to obtain at least one external acoustic signal, an acoustic signal processor to process the obtained external acoustic signal, and a player to internally play the processed acoustic signal through at least one speaker.
    Type: Application
    Filed: June 12, 2014
    Publication date: April 30, 2015
    Inventors: Dae Young JANG, Jeong Il SEO, Kyeong Ok KANG
  • Patent number: 8995230
    Abstract: Methods and apparatus for using Fourier techniques to detect and isolate the fundamental frequency sweep of echolocation calls produced by bats, or of other narrow-band whistles as produced by other kinds of animals such as birds and whales. According to one example, a Fourier transform is applied on blocks of input samples to produce output frames, and a narrowband frequency modulated signal is detected and traced through the output frames. A filter is applied in each frame to attenuate frequencies above or below the narrowband signal, and an inverse Fourier transform is applied to produce an output signal. The resulting signal may then be analyzed with zero crossing techniques to measure the precise instantaneous frequency sweep.
    Type: Grant
    Filed: July 26, 2012
    Date of Patent: March 31, 2015
    Assignee: Wildlife Acoustics, Inc.
    Inventor: Ian Agranat
  • Patent number: 8983093
    Abstract: Electronic devices and accessories such as headsets for electronic devices are provided. A microphone may be included in an accessory to capture sound for an associated electronic device. Buttons and other user interfaces may be included in the accessories. An accessory may have an audio plug that connects to a mating audio jack in an electronic device, thereby establishing a wired communications link between the accessory and the electronic device. The electronic device may include power supply circuitry for applying bias voltages to the accessory. The bias voltages may bias a microphone and may adjust settings in the accessory such as settings related to operating modes. User input information may be conveyed between the accessory and the electronic device using ultrasonic tone transmission. The electronic device may also gather input from the accessory using a voltage detector coupled to lines in the communications path.
    Type: Grant
    Filed: September 3, 2008
    Date of Patent: March 17, 2015
    Assignee: Apple Inc.
    Inventors: Wendell B. Sander, Jeffrey Terlizzi, Douglas M. Farrar, Timothy Johnson, Brian Sander, Brian J. Conner, Jesse L. Dorogusker
  • Publication number: 20150003207
    Abstract: Provided is a wireless power transmission apparatus. The apparatus includes an ultrasound transmitter generating an ultrasound signal in response to an external source voltage and transmitting the generated ultrasound signal to a medium layer and an ultrasound receiver receiving the ultrasound signal through the medium layer and converting the received ultrasound signal into a driving voltage. The ultrasound transmitter and receiver are manufactured to control impedance values thereof to be matched with each other and a distance between the ultrasound transmitter and receiver is controlled according to predetermined distance conditions.
    Type: Application
    Filed: February 27, 2014
    Publication date: January 1, 2015
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Sung Q. LEE, Gunn HWANG, WooSub YOUM
  • Publication number: 20140369169
    Abstract: A receiver of the present invention includes a microphone, an unnecessary signal remover, and an FM detector. The microphone receives a transmission signal generated by frequency modulating a signal in a frequency band that is receivable by the microphone, on the basis of transmission data. The unnecessary signal remover removes unnecessary signal components by processing the received signal from the microphone. The FM detector restores transmission data by performing FM detection of the received signal from which unnecessary signal components were removed by the unnecessary signal remover.
    Type: Application
    Filed: January 31, 2013
    Publication date: December 18, 2014
    Applicants: SYSTEM DESIGN CORP., ADC TECHNOLOGY INC.
    Inventors: Mitsuhiro Iida, Tsutomu Adachi, Tomoyoshi Yokoi, Shigeru Hayashi, Takezumi Kondo, Tatsumi Kuroda, Takeo Nozawa, Hiroshi Maekawa, Kenshi Takenaka, Tsuyoshi Kawanishi, Kenji Mizuno, Hideya Fujimaki
  • Patent number: 8862156
    Abstract: A system and method effective to provide content to a user. The system may include a sound device, a smart phone, and a processor. The sound device may produce a modulated code where different frequencies represent respectively logic 0s and 1s. The smart phone may apply a transform and peak detector to the modulated code to determine logic 0s and 1s to demodulate the code. The smart phone may send the demodulated code to a processor. The processor may receive the code, determine content associated with the code, and send the content over the network to the smart phone. The smart phone may further receive the content and output the content on a display.
    Type: Grant
    Filed: March 18, 2013
    Date of Patent: October 14, 2014
    Assignee: Sonic Notify, LLC
    Inventors: Alex Bell, Jonathan Glanz
  • Publication number: 20140286131
    Abstract: A wideband sonar receiver is provided that includes: a selectable bandpass filter adapted to filter a received sonar signal to produce a filtered signal and a correlator adapted to correlate the baseband samples with baseband replica samples to provide a correlated signal. In addition, the wideband sonar receiver may include a shaping filter to shape unshaped received pulses. Finally, a variety of sonar processing algorithms are described with regard to reducing clutter and interference, target detection, and bottom detection.
    Type: Application
    Filed: April 24, 2014
    Publication date: September 25, 2014
    Applicant: FLIR Systems, Inc.
    Inventors: Paul Stokes, Phil Webb
  • Publication number: 20140269204
    Abstract: Piezoelectric micromachined ultrasonic transducer (pMUT) arrays and techniques for frequency shaping in pMUT arrays are described, for example to achieve both high frequency and low frequency operation in a same device. The ability to operate at both high and low frequencies may be tuned during use of the device to adaptively adjust for optimal resolution at a particular penetration depth of interest. In embodiments, various sizes of piezoelectric membranes are fabricated for tuning resonance frequency across the membranes. The variously sized piezoelectric membranes are lumped together by two or more separate electrode rails, enabling independent addressing between the two or more subgroups of sized transducer elements. Signal processing of the drive and/or response signals generated and/or received from each of the two or more electrode rails may achieve a variety of operative modes for the device, such as a near field mode, a far field mode, and an ultra wide bandwidth mode.
    Type: Application
    Filed: May 28, 2014
    Publication date: September 18, 2014
    Inventor: Arman HAJATI
  • Publication number: 20140269203
    Abstract: Methods and devices are disclosed for measuring low levels of acceleration caused by low frequency seismic waves. For example, an omnidirectional beam accelerometer configured to measure low frequency waves is disclosed. The omnidirectional beam accelerometer may include three beam acceleration sensors. Each beam acceleration sensor may include a respective mass and a respective beam. Each respective beam may be comprised at least in part of a piezoelectric material. Each beam acceleration sensor may have a ratio of mass density [kg/m3] to beam stiffness [N/m] of at least 4.5×10?5 kg/Nm2. The omnidirectional beam accelerometer may also include a housing to ensure the sensors are operating in orthogonal directions and an interface circuit to interface between the sensor and external circuitry.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Inventors: Sterling William Jones, David Ralph Kimball
  • Publication number: 20140219062
    Abstract: CMOS Ultrasonic Transducers and processes for making such devices are described. The processes may include forming cavities on a first wafer and bonding the first wafer to a second wafer. The second wafer may be processed to form a membrane for the cavities. Electrical access to the cavities may be provided.
    Type: Application
    Filed: February 4, 2014
    Publication date: August 7, 2014
    Applicant: Butterfly Network, Inc.
    Inventors: Jonathan M. Rothberg, Keith G. Fife, Tyler S. Ralston, Gregory L. Charvat, Nevada J. Sanchez
  • Publication number: 20140211592
    Abstract: An ultrasonic measurement device includes: an ultrasonic element array that has at least one reception column connected to a reception terminal, and equipped with ultrasonic elements for reception and that has at least one transmission column connected to a transmission terminal, and equipped with ultrasonic elements for transmission; a reception circuit that receives a signal from the reception terminal; and a transmission circuit that outputs a signal to the transmission terminal. The reception column and the transmission column are alternately arranged every column, or any multiple of columns in a scanning direction. The ultrasonic elements for reception and the ultrasonic elements for transmission are arranged along a orthogonal direction that is orthogonal to the scanning direction. The reception terminal is arranged at one end of the array in the orthogonal direction, and the transmission terminal is arranged at the other end of the array in that direction.
    Type: Application
    Filed: January 27, 2014
    Publication date: July 31, 2014
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Takao MIYAZAWA
  • Patent number: 8792305
    Abstract: A method of receiving data coded on an ultrasonic signal comprising: detecting said ultrasonic signal using a microphone (4) having its greatest response below 20 kilohertz or a microphone (4) adapted for human speech reception; and decoding said signal to determine said data.
    Type: Grant
    Filed: August 20, 2008
    Date of Patent: July 29, 2014
    Assignee: Sonitor Technologies AS
    Inventors: Wilfred Edwin Booij, Knut Osvald Welle
  • Publication number: 20140201069
    Abstract: To provide a technique for making it possible to perform proximity communication using an apparatus not including a special proximity communication device. Transmission data is acquired. Output sound data of a PCM format obtained by encoding the transmission data is output, the output sound data indicating sound in an inaudible frequency band. A DA converter is caused to convert the output sound data, whereby a speaker is caused to output sound corresponding to the output sound data. The output sound data indicates sound having a plurality of sections with sound and soundless sections between the adjacent sections with sound according to the transmission data and that the output sound data indicates a sine curve in which the amplitude of the sections with sound increases from a start time and decreases after reaching a maximum.
    Type: Application
    Filed: October 24, 2012
    Publication date: July 17, 2014
    Applicant: Rakuten, Inc.
    Inventor: Will Archer Arentz
  • Publication number: 20140192615
    Abstract: An information processing apparatus is provided, which includes: a signal initialization unit that acquires an initial value of a pressure signal that is obtained after receive, by a receiving unit, of an elasticity wave from an object; an impulse response initialization unit that acquires an initial value of an impulse response of the receiving unit; and an output unit that outputs a modified pressure signal, wherein the output unit has: a signal modifying unit that modifies the pressure signal in use of the impulse response; a signal constraining unit that modifies the pressure signal based on a plurality of constraint conditions; an impulse response modifying unit that modifies the impulse response; and an impulse response constraining unit that modifies the impulse response based on constraint conditions which are time-bandwidth characteristics, and wherein the output unit generates the modified pressure signal by iteratively executing the processes.
    Type: Application
    Filed: August 30, 2012
    Publication date: July 10, 2014
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Kenji Mitsuhashi
  • Publication number: 20140146643
    Abstract: Disclosed are a method and a system for implementing near field communication (NFC). The method includes: modulating a digital signal to generate an audio signal with a transmitting device by utilizing a binary frequency shift keying modulation scheme; playing the generated audio signal with the transmitting device; receiving the audio signal by a receiving device; sampling the audio signal by the receiving device; and demodulating the sampled audio signal for obtaining the digital signal by the receiving device. The present disclosure is capable of implementing NFC between mobile communication devices not having NFC chips equipped, thereby solving the problems that hardware requirements which utilize schemes of the NFC standard are higher, and current application ranges are narrow.
    Type: Application
    Filed: November 28, 2012
    Publication date: May 29, 2014
    Applicant: Tencent Technology (Shenzhen) Company Limited
    Inventors: Pengli Zhou, Chang He
  • Publication number: 20140140178
    Abstract: An ultrasonic sensor and method for using the same are arranged for capturing a value document transported through a capture region of the ultrasonic sensor. The ultrasonic sensor has an ultrasound transmitter arranged for emitting ultrasound into the capture region and an ultrasound receiver arranged for receiving ultrasound from the ultrasound transmitter from the capture region. A control and evaluation circuit is arranged for controlling the ultrasound transmitter and for capturing and evaluating the signals of the ultrasound receiver. A circuit carrier carries the control and evaluation circuit, the ultrasound transmitter, the ultrasound receiver, and conducting paths electrically connecting the control and evaluation circuit to the first and second ultrasonic transducers. The circuit carrier has a U-shaped configuration and two interconnected arm portions, and the ultrasound transmitter is held on one of the two arm portions and the ultrasound receiver on the other of the two arm portions.
    Type: Application
    Filed: June 19, 2012
    Publication date: May 22, 2014
    Applicant: GIESECKE & DEVRIENT GMBH
    Inventors: Hans-Uwe Moosler, Oskar Dicklberger, Joseph Lohner, Frank Hermann
  • Patent number: 8718939
    Abstract: Techniques for measuring one or more physical properties of a water system. A measurement platform is positioned at a first location of a given water system, wherein the measurement platform comprises a plurality of sensor devices distributed over a three dimensional space and configured to acquire data relating to one or more physical properties of the water system. A first set of measurement data is acquired from the water system at the first location via at least a portion of the plurality of sensor devices of the measurement platform. The measurement platform is moved along a predetermined path to at least a second location in the water system. At least a second set of measurement data is acquired from the water system at the second location via at least a portion of the plurality of sensor devices of the measurement platform.
    Type: Grant
    Filed: March 29, 2011
    Date of Patent: May 6, 2014
    Assignee: International Business Machines Corporation
    Inventors: Hendrik F. Hamann, Levente I. Klein, Andriy Stepanchuk
  • Patent number: 8711656
    Abstract: A method, apparatus and computer program product for fast-synching a wireless Bluetooth connection using a first device's wireless identifier is provided. One implementation of the present invention modulates the wireless identifier as a sonic Bluetooth code over a sonic carrier signal. To send the wireless identifier, one implementation accesses a storage area associated with the first wireless device holding the sonic carrier signal. Aspects of the invention then transmit the sonic Bluetooth code as modulated over the sonic carrier signal. A sonic transducer, such as a microphone on the second wireless device, receives the sonic carrier signal and wireless identifier for demodulation. In response, the second wireless device requests to establish a physical channel with the first wireless device using the wireless identifier received over the sonic carrier signal.
    Type: Grant
    Filed: November 9, 2010
    Date of Patent: April 29, 2014
    Assignee: Verifone Systems, Inc.
    Inventor: Brett Paulson
  • Patent number: 8693288
    Abstract: A method is provided for characterizing data sets containing data points. The method can characterize the data sets as random or as non-random. In the method, a convex hull envelope is constructed which contains the data points and passes through at least four non-coplanar data points. The convex hull envelope is partitioned into cells. The method classifies the data set as a sized sample. Based on the classification, a predetermined set of tests is selected for operating on the data set.
    Type: Grant
    Filed: October 4, 2011
    Date of Patent: April 8, 2014
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Francis J. O'Brien, Jr., Aimee M. Ross
  • Patent number: 8674824
    Abstract: A sonar sensor array is provided that has reduced power consumption, data bandwidth and data storage requirements. The sensor array may be configured to a sleep mode, low-resolution mode and high-resolution mode. In the sleep mode, all sonar sensors are configured in the sleep mode and no acoustic signals are detected. In the low-resolution mode, a limited number of sonar sensors are powered and acoustic signals received by the sonar sensors are processed with reduced bandwidth and reduced dynamic range, and then stored on a data storage device. In the high-resolution mode, the acoustic signals detected by the sonar sensors are processed with full signal bandwidth and full dynamic range and then stored on the data storage device.
    Type: Grant
    Filed: August 6, 2012
    Date of Patent: March 18, 2014
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Timothy B. Straw, Michael J. Obara, Stephen A. Caldwell
  • Patent number: 8641197
    Abstract: An acoustical receiver for detecting an acoustical signal characterized by a wavelength and a pen transcription system utilizing the same are disclosed. The receiver includes a detector that generates an electrical signal in response to acoustical signals in a predetermined frequency range including that wavelength, a housing surrounding the detector, and a receiving horn. The housing has a housing aperture having a maximum dimension less than the acoustical signal wavelength. The receiving horn has a first opening that is adjacent to the housing aperture and a second aperture having a dimension that is greater than the acoustical signal wavelength.
    Type: Grant
    Filed: December 23, 2011
    Date of Patent: February 4, 2014
    Assignee: Luidia Inc.
    Inventor: Yao Ding
  • Patent number: 8634275
    Abstract: In an audio processing device, a target sound emphasizer generates a target sound emphasized component by emphasizing a target sound component contained in a plurality of audio signals generated by a plurality of sound receiving devices. A stereo processor generates a stereo component of a plurality of channels from the plurality of audio signals. A first adjuster adjusts a sound pressure level of the target sound emphasized component according to a first adjustment value, and a second adjuster adjusts a sound pressure level of the stereo component according to a second adjustment value. A variable setter variably sets a zoom value which is changeable between a wide angle side and a telephoto side relative to a target.
    Type: Grant
    Filed: October 22, 2010
    Date of Patent: January 21, 2014
    Assignee: Yamaha Corporation
    Inventors: Kazunobu Kondo, Kenichi Yamauchi, Hideki Kemmochi
  • Patent number: 8630148
    Abstract: Systems, methods, and apparatus to drive reactive loads are disclosed. An example apparatus to drive a reactive load includes a reactive component in circuit with the reactive load, a first switching element in circuit with the reactive load to selectively hold the reactive load in a first energy state and to selectively allow the reactive load to change from the first energy state to a second energy state, a second switching element in circuit with the reactive load to selectively hold the reactive load in the second energy state and to selectively allow the reactive load to change from the second energy state to the first energy state, and a controller to detect a current in the reactive load, and to control the first and second switching elements to hold the reactive load in the first or the second energy state when the current traverses a threshold.
    Type: Grant
    Filed: June 2, 2011
    Date of Patent: January 14, 2014
    Assignee: Schlumberger Technology Corporation
    Inventors: Abderrhamane Ounadjela, Jacques Jundt, Olivier Moyal, Henri-Pierre Valero, Sandip Bose
  • Patent number: 8599647
    Abstract: A method for listening to ultrasonic animal sound signals comprises: obtaining a plurality of input samples at an input sample rate, the plurality of input samples including at least one sequence of samples corresponding to an instance of an intermittently occurring animal sound signal; receiving a frame including at least two of the plurality of input samples; selecting a fraction of the samples as output samples, the fraction of the samples including a sample containing the at least one sequence of samples corresponding to an instance of an intermittently occurring animal sound signal; and transmitting the output samples at an output sample rate slower than the input sample rate.
    Type: Grant
    Filed: May 10, 2011
    Date of Patent: December 3, 2013
    Assignee: Wildlife Acoustics, Inc.
    Inventor: Ian Agranat
  • Publication number: 20130301392
    Abstract: An apparatus for transmitting audio tokens includes an acoustic transmitter to generate a range of audio frequencies including an infrasonic range, a sonic range, and an ultrasonic range. An audio token generator assembles the audio tokens, which include a timestamp and an identifier, and modulates the audio token in to the range of audio frequencies. A synchronizer determines the timestamp relative to an input audio stream and a mixer mixes the audio stream and the audio token for presentation by the acoustic transmitter. An apparatus for receiving the audio tokens includes an acoustic receiver to receive the range of audio frequencies. An audio token extractor extracts the audio token including the timestamp and the identifier from the range of audio frequencies. An interpreter determines user information responsive to at least one of the timestamp and the identifier and a user interface element present the user information to a user.
    Type: Application
    Filed: May 8, 2013
    Publication date: November 14, 2013
    Inventor: Guochun Zhao
  • Publication number: 20130294200
    Abstract: The disclosed electronic apparatus comprises: transmitting means 54 arranged to transmit an ultrasonic signal; receiving means 55 arranged to receive a reflection of the ultrasonic signal from an input object, and to generate a received analogue electrical signal therefrom; a filter 56 arranged to take the received analogue electrical signal as input and to output a filtered analogue electrical signal; and digital processing means 52 configured to control a characteristic of the filter 56, and to use the filtered analogue electrical signal to determine a user input to the electronic apparatus.
    Type: Application
    Filed: December 16, 2011
    Publication date: November 7, 2013
    Applicant: ELLIPTIC LABORATORIES AS
    Inventors: Tobias Dahl, Tom Oystein Kavli
  • Patent number: 8565042
    Abstract: Provided is a data reception error reduction system and method in acoustic communication in audible frequency range, and an apparatus applied thereto. The data reception error reduction system in the acoustic communication in audible frequency range may be configured to reduce a data reception error in a receiver by taking into consideration that a sound signal is noisy and is significantly affected by a change in the ambient environment when the acoustic communication is performed in the audio frequency band through modification of an audio signal or adding of a predetermined signal to an audio signal. Accordingly, the data reception error may be reduced in the receiver even in an environment where a sound signal is noisy and is significantly affected by a change in the ambient environment, and reliability of data transmission may increase.
    Type: Grant
    Filed: June 21, 2012
    Date of Patent: October 22, 2013
    Assignees: SK Telecom Co., Ltd, SNU R&DB Foundation
    Inventors: Dong Keon Kim, Moon Kee Kim, Keun Hwan Choi, Jae Hwang Yu, Min Seok Kim, Nam Soo Kim, Hwan Sik Yun, Ki Ho Cho
  • Publication number: 20130258812
    Abstract: In certain embodiments, systems for receiving one or more echoes are provided. The system comprises a first attenuator, a first amplifier, and a second attenuator. The first attenuator is configured to receive the one or more echo signals, and generate a corresponding set of first attenuated echo signals, respectively, based on a number of signal strengths of the one or more echo signals. The first amplifier is configured to receive and amplify the set of first attenuated echo signals to thereby generate a set of first amplified echo signals corresponding to the one or more first attenuated echo signals, respectively. The second attenuator is configured to receive the set of first amplified echo signals and generate a set of second attenuated echo signals corresponding to the set of first amplified echo signals, respectively, based on a number of signal strengths of the set of first amplified echo signals, respectively.
    Type: Application
    Filed: March 27, 2012
    Publication date: October 3, 2013
    Applicant: Texas Instruments Incorporated
    Inventors: Shabbir Amjhera Wala, Shagun Dusad, Sandeep Oswal, Vajeed Nimran
  • Publication number: 20130258813
    Abstract: An apparatus for capturing audio information from a target location includes first and second beamformers arranged in a recording environment and having first and second recording characteristics, respectively, and a signal generator. The first and second beamformers are configured for recording first and second beamformer audio signals, respectively, when they are directed towards the target location with respect to the first and second recording characteristics. The first and second beamformers are arranged such that first and second virtual straight lines, defined to pass through the first and second beamformers, respectively, and the target location, are not mutually parallel. The signal generator is configured to generate an audio output signal based on the first and second beamformer audio signals so that the audio output signal reflects relatively more audio information from the target location compared to the audio information from the target location in the first and second beamformer audio signals.
    Type: Application
    Filed: May 29, 2013
    Publication date: October 3, 2013
    Inventors: Juergen HERRE, Fabian KUECH, Markus KALLINGER, Giovanni DEL GALDO, Bernhard GRILL
  • Publication number: 20130242703
    Abstract: A footwear seismic communication unit is provided herein. The unit includes footwear attachable to a foot or feet of a user, including at least one sole portion for placing on a ground and at least one seismic transducer device located within said at least one sole. The unit further includes a processing module, a transmitting interface module, and a receiving interface module.
    Type: Application
    Filed: November 7, 2011
    Publication date: September 19, 2013
    Inventor: Zvi Zlotnick
  • Publication number: 20130223191
    Abstract: An ultrasonic transducer element chip includes a substrate, a plurality of ultrasonic transducer elements and a plate-shaped member. The substrate includes a partition wall section defining a plurality of openings arranged in an array pattern. A wall thickness of the partition wall section is smaller than a wall height of partition wall section. Each of the ultrasonic transducer elements is provided in each of the openings. The plate-shaped member is fixed on a surface of the substrate opposite to a surface of the substrate on which the ultrasonic transducer elements are provided. The plate-shaped member covers at least one of the openings in a plan view seen along a thickness direction of the substrate.
    Type: Application
    Filed: February 19, 2013
    Publication date: August 29, 2013
    Applicant: SEIKO EPSON CORPORATION
    Inventor: SEIKO EPSON CORPORATION
  • Publication number: 20130223192
    Abstract: An ultrasonic transducer device includes a substrate, a plurality of ultrasonic transducer elements, a wiring substrate and a wiring member. The substrate defines a plurality of openings arranged in an array pattern. Each of the ultrasonic transducer elements is provided in each of the openings on a first surface of the substrate. The wiring substrate is arranged to face a second surface of the substrate that is opposite from the first surface. The wiring substrate includes a first wiring part. The wiring member is connected to the substrate and the wiring substrate. The wiring member includes a second wiring part electrically connecting the ultrasonic transducer elements to the first wiring part.
    Type: Application
    Filed: February 19, 2013
    Publication date: August 29, 2013
    Applicant: SEIKO EPSON CORPORATION
    Inventor: SEIKO EPSON CORPORATION
  • Patent number: 8514661
    Abstract: A transducer for converting an input signal fed to a first input (2) into a corresponding electric output signal that is output via an output (3). The input signal can be processed via an analog transmission path (4) into an analog converter signal. The transducer allows for a quick conversion of the input signal into a corresponding output signal having a high accuracy and suitable for applications having increased safety requirements, wherein the input signal can be additionally processed via a separate digital transmission path (5) into a digital converter signal. The analog converter signal and the digital converter signal are evaluated by an evaluation unit (6) and the evaluation unit (6) generates the electric output signal based on the analog converter signal or the digital converter signal.
    Type: Grant
    Filed: November 16, 2009
    Date of Patent: August 20, 2013
    Assignee: KG transmitter components GmbH
    Inventor: Udo Galinski
  • Patent number: 8514662
    Abstract: A method, apparatus and computer program product is provided for wirelessly transmitting and receiving data through sonic communication. A method and system is provided for devices to exchange data over the air using a sonic carrier signal. The transmit device has at least one sonic transducer that transmits a sonic carrier signal through the air in accordance with aspects of the present invention. A digital representation of the data is modulated consistent with a modulation protocol using one or more sonic transmission frequencies in accordance with present invention. The sonic transducer transmits the one or more sonic carrier signals carrying the modulated data over the air. Each sonic carrier signal has sufficient gain to carry the signal to a receiver device where the data from the one or more sonic carrier signals is demodulated. Aspects of the present invention receive modulated data through the air using at least one sonic transducer of a receive device.
    Type: Grant
    Filed: August 27, 2010
    Date of Patent: August 20, 2013
    Assignee: Verifone Systems, Inc.
    Inventor: Brett Paulson
  • Publication number: 20130188457
    Abstract: In at least some embodiments, an ultrasound system includes an ultrasound transducer and a bi-directional transistor coupled to the ultrasound transducer. The ultrasound system also includes an ultrasound receiver coupled to the bi-directional transistor. The bi-directional transistor operates to selectively connect the ultrasound transducer to ground and to selectively connect the ultrasound transducer to the ultrasound receiver.
    Type: Application
    Filed: January 24, 2012
    Publication date: July 25, 2013
    Applicant: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Max E. NIELSEN, Ricky D. JORDANGER, Ismail H. OGUZMAN
  • Publication number: 20130162953
    Abstract: An acoustical receiver for detecting an acoustical signal characterized by a wavelength and a pen transcription system utilizing the same are disclosed. The receiver includes a detector that generates an electrical signal in response to acoustical signals in a predetermined frequency range including that wavelength, a housing surrounding the detector, and a receiving horn. The housing has a housing aperture having a maximum dimension less than the acoustical signal wavelength. The receiving horn has a first opening that is adjacent to the housing aperture and a second aperture having a dimension that is greater than the acoustical signal wavelength.
    Type: Application
    Filed: December 23, 2011
    Publication date: June 27, 2013
    Inventor: Yao Ding
  • Publication number: 20130155816
    Abstract: A method includes detecting a signal at a first set of receivers of a plurality of receivers of a device. The plurality of receivers includes the first set of receivers and a second set of receivers. The first set of receivers corresponds to selected receivers and the second set of receivers corresponds to non-selected receivers. The method includes predicting, based on the signal, an expected blockage of a signal path between a source of the signal and a first selected receiver of the first set of receivers, and selecting a particular receiver of the second set of receivers as a newly selected receiver in response to predicting the expected blockage.
    Type: Application
    Filed: December 12, 2012
    Publication date: June 20, 2013
    Applicant: QUALCOMM Incorporated
    Inventor: QUALCOMM Incorporated
  • Patent number: 8451143
    Abstract: A vehicle presence notification apparatus notifies a presence of a vehicle by providing easily-perceivable and less uncomfortable notification sound outside of the vehicle. The vehicle presence notification apparatus includes: a speaker and a controller. The controller is configured to cause the speaker to generate the notification sound that simultaneously has (i) at least one fundamental high frequency, which is easily perceivable, but annoying to human ears; and (ii) at least one auxiliary low frequency, which is less than the at least one fundamental high frequency and has a harmonic relation with the at least one fundamental high frequency.
    Type: Grant
    Filed: January 21, 2011
    Date of Patent: May 28, 2013
    Assignee: Denso Corporation
    Inventor: Toshiaki Nakayama
  • Publication number: 20130107670
    Abstract: An ultrasound receiving method is provided. N return-wave signals corresponding to N channels are respectively stored in N set of shift register arrays. Each set includes a delay filter unit and M shift registers. A delay controller is utilized to assign a set of coefficients to the delay filter unit to perform an interpolation operation on data of the M shift registers to obtain an output value. The delay controller is utilized to decide delay time of each channel according to a delay table, and accordingly to control a time multiplexer to switch and output the N output values in order. A multiplier is utilized to multiply the output value received from the time multiplexer by a weighted value corresponding to the channel to obtain a corrected value. An accumulator is utilized to accumulate the N corrected values to obtain an image value.
    Type: Application
    Filed: April 4, 2012
    Publication date: May 2, 2013
    Inventor: Chien-Ju LI
  • Publication number: 20130107671
    Abstract: A reception circuit disposed within an ultrasound probe is provided. The reception circuit includes, at least one amplifying unit configured to amplify echo signals received by ultrasound transducers, and at least one delay unit connected to the amplifying unit and including a first circuit and a second circuit each configured to apply a delay time to an output from the amplifying unit, wherein the first and second circuits each have a plurality of capacitor banks. Each capacitor bank includes two or more capacitors each configured to write therein a signal amplified by the amplifying unit, wherein the two or more capacitors are different from one another in capacitance, write switches configured to write an output current into the first and second capacitors of the two or more capacitors, and read switches configured to read the output written into the first and second capacitors.
    Type: Application
    Filed: October 25, 2012
    Publication date: May 2, 2013
    Applicant: GE MEDICAL SYSTEMS GLOBAL TECHNOLOGY COMPANY, LLC
    Inventor: GE Medical Systems Global Technology Compan