Broadcast Or Multiplex Stereo Patents (Class 381/2)
  • Patent number: 10382849
    Abstract: Apparatus including: an audio capture application configured to determine separate microphones from a plurality of microphones and identify a sound source direction of at least one audio source within an audio scene by analyzing respective two or more audio signals from the separate microphones, wherein the audio capture application is further configured to adaptively select, from the plurality of microphones, two or more respective audio signals based on the determined direction and furthermore configured to select, from the two or more respective audio signals, a reference audio signal also based on the determined direction; and a signal generator configured to generate a mid signal representing the at least one audio source based on a combination of the selected two or more respective audio signals and with reference to the reference audio signal.
    Type: Grant
    Filed: July 5, 2016
    Date of Patent: August 13, 2019
    Assignee: Nokia Technologies Oy
    Inventors: Mikko-Ville Laitinen, Mikko Tammi, Miikka Vilermo
  • Patent number: 10341800
    Abstract: An audio providing apparatus and method are provided. The audio providing apparatus includes: an object renderer configured to render an object audio signal based on geometric information regarding the object audio signal; a channel renderer configured to render an audio signal having a first channel number into an audio signal having a second channel number; and a mixer configured to mix the rendered object audio signal with the audio signal having the second channel number.
    Type: Grant
    Filed: July 25, 2018
    Date of Patent: July 2, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sang-bae Chon, Sun-min Kim, Jae-ha Park, Sang-mo Son, Hyun Jo, Hyun-joo Chung
  • Patent number: 10334381
    Abstract: Some embodiments include a system for delivery of binaural audio to a consumer including a computing device with a processor, a non-transitory computer readable medium having stored instructions that when executed by the computing device, cause the computing device to perform operations for delivery of the binaural audio to the consumer through the consumer device. The operations can enable a delivery server to associate the consumer device with a binaural audio file associated with the event attended by the consumer. The operations can enable the consumer device to retrieve and download a binaural audio file from the delivery server, and to receive synchronization information associated with the event and the binaural audio file. The operations can also include processing the binaural audio file and delivering audio through an audio emitting device coupled to the consumer device, where the delivered audio is synchronized with the event.
    Type: Grant
    Filed: October 12, 2016
    Date of Patent: June 25, 2019
    Assignee: SOUNDFI SYSTEMS, LLC
    Inventor: Chris T. Anastas
  • Patent number: 10243675
    Abstract: Provided is a mobile device including: an input reception unit for receiving at least one input through a user interface; a control information determination unit for determining control information corresponding to an operation of an external device based on the at least one input, wherein the control information includes a first symbol and a second symbol; a sound wave data generation unit for generating sound wave data corresponding to the control information; and an output unit for outputting a sound wave corresponding to the sound wave data generated by a sound wave generation apparatus. In this case, the sound wave data generation unit determines a first frequency corresponding to the first symbol and a second frequency corresponding to the second symbol, and generates the sound wave data based on the first frequency and the second frequency, and the sound wave data includes a portion corresponding to the first frequency and a portion corresponding to the second frequency.
    Type: Grant
    Filed: June 18, 2014
    Date of Patent: March 26, 2019
    Assignee: POWERVOICE CO., LTD.
    Inventors: Hee Suk Jeong, Se Hun Chin, Hyung Yup Lee
  • Patent number: 10244263
    Abstract: Methods of data encoding using trees formed with logic gates are described which lead to spatial compression of image data. Data encoding is achieved using a five-level wavelet transform, such as the Haar or the 2/10 transform. A dual transform engine is used, the first and engine being used for the first part of the first-level transform, the second part of the first-level transform and the subsequent-level transforms being performed by the second transform engine within a time interval which is less than or equal to the time taken by the first transform engine to effect the part-transform. Each bit plane of the resulting coefficients is then encoded by forming a tree structure from the bits and OR logical combinations thereof. Redundant data are removed from the resulting tree structure, and further data can be removed by using a predetermined compression profile.
    Type: Grant
    Filed: October 20, 2015
    Date of Patent: March 26, 2019
    Assignee: RGB SYSTEMS, INC.
    Inventor: Peter Lionel Smith
  • Patent number: 10237673
    Abstract: An audio encoding apparatus and method that encodes hybrid contents including an object sound, a background sound, and metadata, and an audio decoding apparatus and method that decodes the encoded hybrid contents are provided. The audio encoding apparatus may include a mixing unit to generate an intermediate channel signal by mixing a background sound and an object sound, a matrix information encoding unit to encode matrix information used for the mixing, an audio encoding unit to encode the intermediate channel signal, and a metadata encoding unit to encode metadata including control information of the object sound.
    Type: Grant
    Filed: January 15, 2018
    Date of Patent: March 19, 2019
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Seung Kwon Beack, Tae Jin Lee, Jong Mo Sung, Kyeong Ok Kang, Jeong Il Seo, Dae Young Jang, Yong Ju Lee, Jin Woong Kim
  • Patent number: 10165382
    Abstract: A signal processing device includes a selector configured to select one of a plurality of methods, in accordance with which a signal generation process is performed for generating a transfer signal in which additional information is added to an audio signal; a signal processor configured to execute the signal generation process of adding the additional information to the audio signal in accordance with the method selected by the selector; and a transferrer configured to transfer to a reproduction device the transfer signal generated by the signal processor.
    Type: Grant
    Filed: March 26, 2018
    Date of Patent: December 25, 2018
    Assignee: YAMAHA CORPORATION
    Inventors: Ryotaro Aoki, Atsushi Usui, Masaya Kano, Kotaro Nakabayashi, Yuta Yuyama
  • Patent number: 10045103
    Abstract: A kinesthetic speaker usage system provides a speaker connected to a housing about a cavity into which the sound from the speaker is directed. The housing has an exterior surface in tactile communication with a retainer which can direct vibration directly or directly to a user, such as a person. Many embodiments utilize a pipe for the housing, such as a flexible pipe.
    Type: Grant
    Filed: December 21, 2016
    Date of Patent: August 7, 2018
    Inventors: Stephen Mason, Scott Geller
  • Patent number: 10037297
    Abstract: A method for extending the range of isochronous USB data transfer, by providing a local extender and a remote extender, coupled respectively to the USB host and the USB device, and coupled to each other via a non-USB cable. After receiving a first In-token from the host, the local extender transmits a first data packet to the host, which contains a data payload having a non-zero length; the data is either generated by the first extender, or previously received from the USB device and stored in a buffer. The local extender forwards the first In-token to the USB device via the remote extender; in response, the USB device generates a second data packet containing requested data and transmits it to the local extender via the remote extender. The local extender stores the second data packet and transmits it to the host in response to a second In-token from the host.
    Type: Grant
    Filed: December 30, 2015
    Date of Patent: July 31, 2018
    Assignee: ATEN International Co., Ltd.
    Inventors: Xinbo Li, Ge Wang
  • Patent number: 9997164
    Abstract: Methods for generating an object based audio program which is renderable in a personalizable manner, e.g., to provide an immersive, perception of audio content of the program. Other embodiments include steps of delivering (e.g., broadcasting), decoding, and/or rendering such a program. Rendering of audio objects indicated by the program may provide an immersive experience. The audio content of the program may be indicative of multiple object channels (e.g., object channels indicative of user-selectable and user-configurable objects, and typically also a default set of objects which will be rendered in the absence of a selection by a user) and a bed of speaker channels. Another aspect is an audio processing unit (e.g., encoder or decoder) configured to perform, or which includes a buffer memory which stores at least one frame (or other segment) of an object based audio program (or bitstream thereof) generated in accordance with, any embodiment of the method.
    Type: Grant
    Filed: March 19, 2014
    Date of Patent: June 12, 2018
    Assignees: Dolby Laboratories Licensing Corporation, Dolby International AB
    Inventors: Robert Andrew France, Thomas Ziegler, Sripal S. Mehta, Andrew Jonathan Dowell, Prinyar Saungsomboon, Michael David Dwyer, Farhad Farahani, Nicolas R. Tsingos, Freddie Sanchez
  • Patent number: 9942584
    Abstract: An example apparatus to generate media monitoring information includes a processor to collect a first data record corresponding to a first media presentation session, and collect a second data record corresponding to a second media presentation. The example apparatus also includes a memory in circuit with the processor, the memory to: store a first end timestamp in the first data record indicative of a first time at which the first media presentation session ended; store a second end timestamp in the second data record indicative of a second time at which the second media presentation session ended; and store the first end timestamp in the second data record.
    Type: Grant
    Filed: July 29, 2016
    Date of Patent: April 10, 2018
    Assignee: The Nielsen Company (US), LLC
    Inventors: David H. Wright, Kamal Nasser, Jeff L. Herrmann, Arun Ramaswamy, Brian Scott Mello
  • Patent number: 9917952
    Abstract: Example embodiments disclosed herein relate to an evaluation of perceptual delay impact on a conversation. A method of evaluating perceptual delay impact on a conversation is disclosed. The method includes detecting a conversational event between a first participant and a second participant, the conversational event including a plurality of speech segments; in response to the conversational event being detected, obtaining at least one conversational parameter for the first and second participants, the at least one conversational parameter indicating a relationship between the plurality of speech segments in the conversational event; and determining a quality of the conversation according to a model based on the at least one conversational parameter, the model characterizing the quality with the at least one conversational parameter. A method of obtaining a model for evaluating perceptual delay impact on a conversation is also disclosed. Corresponding systems and computer program products are also disclosed.
    Type: Grant
    Filed: March 30, 2017
    Date of Patent: March 13, 2018
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Kai Li, Doh-Suk Kim
  • Patent number: 9913034
    Abstract: A method for determining a connection order of nodes on a powered audio bus by having the nodes draw power from the powered audio bus, measure the power consumed downstream, determine who is the last node on the bus, and transmit an identifier of the last node to the bus driver.
    Type: Grant
    Filed: September 6, 2016
    Date of Patent: March 6, 2018
    Assignee: MUSIC GROUP IP LTD
    Inventor: Lars Arknaes-Pedersen
  • Patent number: 9906883
    Abstract: An audio encoding apparatus and method that encodes hybrid contents including an object sound, a background sound, and metadata, and an audio decoding apparatus and method that decodes the encoded hybrid contents are provided. The audio encoding apparatus may include a mixing unit to generate an intermediate channel signal by mixing a background sound and an object sound, a matrix information encoding unit to encode matrix information used for the mixing, an audio encoding unit to encode the intermediate channel signal, and a metadata encoding unit to encode metadata including control information of the object sound.
    Type: Grant
    Filed: September 4, 2014
    Date of Patent: February 27, 2018
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Seung Kwon Beack, Tae Jin Lee, Jong Mo Sung, Kyeong Ok Kang, Jeong Il Seo, Dae Young Jang, Yong Ju Lee, Jin Woong Kim
  • Patent number: 9854373
    Abstract: A headphone socket that includes: a headphone socket body and a spring plate part; the spring plate part is clamped into the headphone socket body, and the spring plate part includes: a microphone spring plate, a grounded spring plate, a right-earpiece spring plate, a charging detection availability identifying spring plate, a headphone availability detection spring plate, and a left-earpiece spring plate; and when a headphone plug of headphones is completely inserted into the headphone socket, the charging detection availability identifying spring plate is in contact with a right-channel terminal of the headphone plug, so as to conduct a connection between the right-channel terminal and an external circuit, so that a device at which the headphone socket is located charges the headphones by using the microphone spring plate that is in contact with a microphone terminal of the headphone plug.
    Type: Grant
    Filed: May 30, 2014
    Date of Patent: December 26, 2017
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Xuelong Liu, Huogen Kuang, Wei Su
  • Patent number: 9788139
    Abstract: A headset, which may be configured to process audio for a player participating in an online multiplayer game, may support auto-pairing with audio basestations. In this regard, an audio basestation may be utilized in communicating game and chat audio content from an associated game console to a paired headset and in communicating microphone audio from the paired headset to the console. The auto-pairing may comprise automatically exchanging signals with an audio basestation, in response to the headset coming within a determined distance of the audio basestation; and pairing with the audio basestation based on processing of the exchanged signals. The pairing may result in establishing one or more wireless links for game and chat audio to be communicated to the headset and microphone audio to be communicated from the headset. The determined distance may correspond to physical contact (e.g., tapping) between the headset and the basestation.
    Type: Grant
    Filed: July 31, 2014
    Date of Patent: October 10, 2017
    Assignee: Voyetra Turtle Beach, Inc.
    Inventors: Richard Kulavik, Michael A. Jessup
  • Patent number: 9672832
    Abstract: There is provided an audio encoder comprising a determination part determining, based on frequency spectra of audio signals of a plurality of channels, a mixing ratio as a ratio, relative to a frequency spectrum after mixing for each channel of the plurality of channels, of the frequency spectrum for another channel, a mixing part mixing the frequency spectra of the plurality of channels for each channel based on the mixing ratio determined by the determination part, and an encoding part encoding the frequency spectra of the plurality of channels after mixing by the mixing part.
    Type: Grant
    Filed: June 11, 2012
    Date of Patent: June 6, 2017
    Assignee: Sony Corporation
    Inventors: Yasuhiro Toguri, Yuuji Maeda, Jun Matsumoto, Shiro Suzuki, Yuuki Matsumura
  • Patent number: 9609383
    Abstract: Technology is described for providing audio for digital content. The digital content may be provided to a plurality of devices. Each device may be associated with a profile. At least one group of profiles may be identified from the plurality of devices that share an affiliation. The group of profiles may be represented as a group of environment objects in the digital content. A location may be identified within the digital content that corresponds to the group of environment objects. Audio may be received for the devices. The audio may be received while the digital content is being transmitted to the plurality of devices. The audio may be transmitted to the plurality of devices for directional audio playback. The audio may be directed to correspond with the virtual location of the at least one group of environment objects in the digital content.
    Type: Grant
    Filed: March 23, 2015
    Date of Patent: March 28, 2017
    Assignee: Amazon Technologies, Inc.
    Inventor: Alistair Robert Hirst
  • Patent number: 9588566
    Abstract: Suppression of interference across transceivers integrated on a single semiconductor chip. An example of a method of reducing noise in a transceiver includes introducing an adjustable time delay into a signal between a first section of a signal path into which noise may be introduced and a second section of the signal path into which noise may be introduced. The method also includes selectively adjusting the time delay and signal polarity to improve a signal-to-noise metric of the transceiver. An example of the transceiver includes a transmitter and a receiver. The transceiver also includes an adjustable time delay between a first section of a transceiver signal path into which noise may be introduced and a second section of the transceiver signal path into which noise may be introduced and circuitry for reducing noise by adjusting a value of the time delay.
    Type: Grant
    Filed: September 7, 2011
    Date of Patent: March 7, 2017
    Assignee: Texas Instruments Incorporated
    Inventors: Jaiganesh Balakrishnan, Sriram Murali
  • Patent number: 9564138
    Abstract: The present invention relates to a method and device for encoding or decoding an object audio signal or rendering the object audio signal in a three-dimensional space. The method for processing an audio signal, according to one aspect of the present invention, comprises the steps of: generating a first object signal group and a second object signal group obtained by classifying a plurality of object signals according to a determined method; generating a first down-mix signal for the first object signal group; generating a second down-mix signal for the second object signal group; generating first object extraction information in correspondence with the first down-mix signal with respect to object signals included in the first object signal group; and generating second object extraction information in correspondence with the second down-mix signal with respect to object signals included in the second object signal group.
    Type: Grant
    Filed: July 26, 2013
    Date of Patent: February 7, 2017
    Assignee: INTELLECTUAL DISCOVERY CO., LTD.
    Inventors: Hyun Oh Oh, Jeongook Song, Myungsuk Song, Sewoon Jeon, Taegyu Lee
  • Patent number: 9542951
    Abstract: An apparatus for processing an audio signal and method thereof, the method including receiving a downmix signal including at least one normal object signal, and a bitstream including object information determined when the downmix signal is generated; extracting, from an extension part of the bitstream, an extension type identifier indicating whether the downmix signal further includes a multi-channel object signal; generating spatial information using the object information and mix information when mode information indicates that the multi-channel object signal is to be suppressed and the extension type identifier indicates that the downmix signal further includes the multi-channel object signal; and transmitting spatial information. The mix information is to control an object position or an object level of the at least one normal object signal.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: January 10, 2017
    Assignee: LG ELECTRONICS INC.
    Inventors: Hyen-O Oh, Yang Won Jung
  • Patent number: 9530419
    Abstract: A stereophonic signal is converted into a mid channel signal and a side channel signal. Noise is added to the side channel signal. The amount of noise is selected depending on masking thresholds for at least two channels of the stereophonic signal. The mid channel signal and the modified side channel signal are quantized for transmission. Alternatively or in addition, a set of quantization parameter for the quantization of the side channel signal is selected depending on the masking thresholds.
    Type: Grant
    Filed: May 4, 2011
    Date of Patent: December 27, 2016
    Assignee: Nokia Technologies Oy
    Inventors: Miikka Tapani Vilermo, Lasse Juhani Laaksonen
  • Patent number: 9484039
    Abstract: An apparatus for processing an audio signal and method thereof, the method including receiving a downmix signal including at least one normal object signal, and a bitstream including object information determined when the downmix signal is generated; extracting an extension type identifier indicating whether the downmix signal further includes a multi-channel object signal, from an extension part of the bitstream; extracting spatial information from the bitstream when the extension type identifier indicates that the downmix signal further includes the multi-channel object signal; and transmitting spatial information when mode information indicates that the least one normal object signal is to be suppressed. The spatial information is determined when a multi-channel source signal is downmixed into the multi-channel object signal. The mix information is to control an object position or an object level of the at least one normal object signal.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: November 1, 2016
    Assignee: LG ELECTRONICS INC.
    Inventors: Hyen-O Oh, Yang Won Jung
  • Patent number: 9473852
    Abstract: A method for pre-processing a channelized music signal to improve perception and appreciation for a hearing prosthesis recipient. In one example, the channelized music signal is a stereo input signal. A device, such as a handheld device, hearing prosthesis, or audio cable, for example, applies a mask to a stereo input signal to extract a center-mixed component from the stereo signal and outputs an output signal comprised of a weighted combination of the extracted center-mixed component and a residual signal comprising a non-extracted part of the stereo input signal. The center-mixed component may contain components, such as leading vocals and/or drums, preferred by hearing prosthesis recipients relative to other components, such as backing vocals or other instruments.
    Type: Grant
    Filed: July 11, 2014
    Date of Patent: October 18, 2016
    Assignee: Cochlear Limited
    Inventor: Wim Buyens
  • Patent number: 9397683
    Abstract: Reduced digital audio sampling rates are described in a digital audio processing chain. In one embodiment, an audio signal is received. A convolution operation is performed on the received audio signal. The convoluted audio signal is sampled. An interrupt is received to process the audio sample, and the sample is processed in response to the interrupt. The processed samples are collected to form a frame and the frame is transmitted to a remote device.
    Type: Grant
    Filed: August 5, 2014
    Date of Patent: July 19, 2016
    Assignee: Intel Corporation
    Inventors: Phani Kumar Nyshadham, Niranjan Avadhanam, Sreekanth Nakkala
  • Patent number: 9398294
    Abstract: An encoder/decoder is based on a combination of two audio or video channels to obtain a first combination signal as a mid-signal and a residual signal derivable using a predicted side signal derived from the mid-signal. A decoder uses the prediction residual signal, the first combination signal, a prediction direction indicator and prediction information to derive decoded first channel and second channel signals. A real-to-imaginary transform can be applied for estimating the imaginary part of the spectrum of the first combination signal. The prediction signal used in the derivation of the prediction residual signal, the real-valued first combination signal is multiplied by a real portion of the complex prediction information and the estimated imaginary part of the first combination signal is multiplied by an imaginary portion of the complex prediction information.
    Type: Grant
    Filed: October 5, 2012
    Date of Patent: July 19, 2016
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Julien Robillard, Matthias Neusinger, Christian Helmrich, Johannes Hilpert, Nikolaus Rettelbach, Sascha Disch, Bernd Edler
  • Patent number: 9312972
    Abstract: Systems and methods are disclosed that may be implemented to process a received RF spectrum that includes both analog modulated and digitally modulated RF signals to blend between a digital demodulated signal and an analog demodulated signal obtained from the received RF spectrum prior to performing one or more signal quality mitigation operations on the blended signal (e.g., such as stereo blend, hi-cut, etc.). In one embodiment, the digital demodulated signal and the analog demodulated signal may include at least some of the same information, e.g., such as information from simulcast digital and analog channels that are obtained from the same received RF spectrum.
    Type: Grant
    Filed: May 31, 2013
    Date of Patent: April 12, 2016
    Assignee: Silicon Laboratories Inc.
    Inventor: Javier Elenes
  • Patent number: 9311925
    Abstract: The invention relates to a method and an apparatus in which samples of at least a part of an audio signal of a first channel and a part of an audio signal of a second channel are used to produce a sparse representation of the audio signals to increase the encoding efficiency. In an example embodiment one or more audio signals are input and relevant auditory cues are determined in a time-frequency plane. The relevant auditory cues are combined to form an auditory neurons map. Said one or more audio signals are transformed into a transform domain and the auditory neurons map is used to form a sparse representation of said one or more audio signal.
    Type: Grant
    Filed: October 12, 2009
    Date of Patent: April 12, 2016
    Assignee: Nokia Technologies Oy
    Inventor: Juha Ojanperä
  • Patent number: 9294207
    Abstract: The broadcasting of audio contents by two loudspeakers is controlled by delivering a first audio content to the two loudspeakers and a further processing in which an auxiliary audio content is received. A second audio content is formed by temporally delaying the auxiliary audio content with a delay dependent on the spacing between the loudspeakers and on a distance between a first loudspeaker and a spot located in front of this first loudspeaker. The second audio content is delivered to the first loudspeaker. A third audio content is formed by inverting the auxiliary audio content. The third audio content is then delivered to the second loudspeaker.
    Type: Grant
    Filed: December 6, 2012
    Date of Patent: March 22, 2016
    Assignee: STMicroelectronics (Grenoble 2) SAS
    Inventors: Vianney Taufour, Gael Lassure
  • Patent number: 9230551
    Abstract: An apparatus comprising at least one processor and at least one memory including computer program code the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus at least to perform: determining from an audio signal at least a first part and a second part; encoding the first part of the audio signal with a first encoder for generating a first encoded audio signal; encoding the second part of the audio signal with a second encoder configured to generate a second encoded audio signal comprising for a first section of the second part an indicator to at least part of the first part of the audio signal; and determining the first section of the second part of the audio signal such that the first encoded audio signal and second encoded audio signal is within a defined encoding efficiency parameter.
    Type: Grant
    Filed: October 18, 2010
    Date of Patent: January 5, 2016
    Assignee: Nokia Technologies Oy
    Inventors: Lasse Juhani Laaksonen, Mikko Tapio Tammi, Adriana Vasilache, Anssi Sakari Rämö
  • Patent number: 9215080
    Abstract: A system for adaptive bit rate distribution of multicast streams may include one or more processors and a memory. The one or more processors may be configured to identify streams, such as multicast streams, transmitted by a content delivery network. The streams may each contain a content item that is encoded at a different bit rate for each stream. The one or more processors may determine segments of the streams, for example based on time stamps associated with the content item or markers of the streams. The one or more processors may transmit a first segment of a first stream encoded at a first bit rate to a user device in response to a request therefor and, upon completing the transmission of the first segment, transmit a second segment of a second stream encoded at a second bit rate to the user device in response to a request therefor.
    Type: Grant
    Filed: June 26, 2013
    Date of Patent: December 15, 2015
    Assignee: Broadcom Corporation
    Inventors: Yong Li, Xuemin Chen, Rajesh Shankarrao Mamidwar
  • Patent number: 9215692
    Abstract: The present invention aims to provide a resource allocation method in a communication system that can effectively suppress a transmission delay. Provided is a resource allocation system in a communication system which includes a terminal 110 and a base station 100, wherein data is regularly generated at the terminal, the base station allocates a resource to the terminal, and the terminal transmits data by using the resource. The terminal 110 includes a generated traffic monitoring unit 113 that monitors the data and, when a predetermined change occurs in the data, reports it to the base station. The base station 100 includes a resource management unit 102 that determines a resource allocation according to the report from the terminal.
    Type: Grant
    Filed: September 16, 2008
    Date of Patent: December 15, 2015
    Assignee: NEC Corporation
    Inventors: Takahiro Nobukiyo, Jinsock Lee
  • Patent number: 9203454
    Abstract: Apparatus to reduce noise in a stereo FM broadcast received via an antenna, the apparatus comprising: a frequency translator configured to translate the received stereo FM broadcast to an intermediate carrier frequency, a demodulation unit configured to demodulate the translated FM signal so as to form left-plus-right and left-minus-right AM signals, a filter configured to form a filtered signal by filtering one of the AM signals, so as to suppress a sub-band of that signal containing unwanted tones, a summing unit for summing the filtered signal and the other of the left-plus-right and left-minus-right signals to produce a stereo audio signal.
    Type: Grant
    Filed: November 16, 2010
    Date of Patent: December 1, 2015
    Assignee: QUALCOMM Technologies International, LTD.
    Inventors: Jacob Sharpe, Andrei Popescu
  • Patent number: 9197160
    Abstract: A method, computer-readable storage medium, and signal processing apparatus for processing a plurality of input signals. The method includes receiving or generating a first intermediate signal and a second intermediate signal. The first and second intermediate signals are summed and the summed signals are output to a signal analog-to-digital converter having a predetermined sampling frequency.
    Type: Grant
    Filed: October 2, 2014
    Date of Patent: November 24, 2015
    Assignee: SONY CORPORATION
    Inventor: Luke Fay
  • Patent number: 9118358
    Abstract: Receivers accommodating carrier frequency selection methods in wireless communications systems employing multiple carrier frequencies are described. Although the receiver is tuned to a single band, an estimate of the channel quality corresponding to the currently used carrier and an alternative carrier is generated without switching between carriers. Transmitters of different cells and/or different sectors primarily use different carrier frequencies but periodically transmit using a neighboring sector's carrier frequency. Mobile node receivers use a single RF chain with a controllable RF filter to receive and process a signal within a first selected carrier band including two components, a first signal component identified with the first currently selected band and a second signal component identified with a second alternative band.
    Type: Grant
    Filed: October 25, 2005
    Date of Patent: August 25, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Rajiv Laroia, Junyi Li, Frank A. Lane
  • Patent number: 9105971
    Abstract: Systems, apparatuses and methods for providing FM phase diversity capabilities are provide. In some aspects, a vehicle system includes a first FM antenna positioned externally of a vehicle and adapted to receive a first FM signal, a radio unit positioned internally of the vehicle and including a display and at least one user control, a cable electrically coupled to the first FM antenna and the radio unit to communicate the first FM signal to the radio unit, and a second FM antenna positioned internally of the vehicle and adapted to receive a second FM signal that is communicated to the radio unit. In another aspect, a radio unit positioned internally of the vehicle may include a printed wire board and a second FM antenna may be positioned on the printed wire board internally of the vehicle and adapted to receive a second FM signal.
    Type: Grant
    Filed: December 13, 2012
    Date of Patent: August 11, 2015
    Assignee: Visteon Global Technologies, Inc.
    Inventor: Yao H. Kuo
  • Patent number: 9078010
    Abstract: Systems and methods are provided for adding audio content to a playback queue. In one example, a method involves receiving a request to add automated streaming audio content to a particular playback position in a playback queue. The playback queue may indicate a plurality of audio content and a corresponding playback position associated with each of the plurality of audio content for playback. The method further involves determining a playback duration for the automated streaming audio content, adding the automated streaming audio content to the playback queue at the particular playback position, and causing the automated streaming audio content to be rendered at the particular playback position in the playback queue for the determined playback duration. The automated streaming audio content may include discrete automated streaming audio content and/or continuous automated streaming audio content. Respective examples for adding discrete and continuous automated streaming audio content are also provided.
    Type: Grant
    Filed: September 28, 2012
    Date of Patent: July 7, 2015
    Assignee: Sonos, Inc.
    Inventors: Paul Andrew Bates, Abhishek Kumar
  • Publication number: 20150124971
    Abstract: The automated switching of broadcast sources of an audio content stream based on the geographic location of the physical unit that is receiving the audio content stream. For instance, while rendering a particular audio content stream from a first broadcasting source, a system may have an identity of one or more alternative possible broadcasting sources available for the same audio content stream for that relative geographic location. In response to some decision making, the system may decide to switch broadest sources for that audio content stream. Thus, the user continues to listen to the audio content stream without being subject to possible negative consequences of continuing to listen to the audio content stream as received from the original broadcast station. Data transmitted by the broadcast stations themselves need not be relied upon. Thus, the automated switching is accomplished even outside of regions in which broadcast stations transmit such data.
    Type: Application
    Filed: November 6, 2013
    Publication date: May 7, 2015
    Applicant: MICROSOFT CORPORATION
    Inventor: Andrew David Mark Haslam
  • Patent number: 9025775
    Abstract: An apparatus for enhancing a multichannel audio signal comprising at least two channels configured to: estimate a value representing a direction of arrival associated with a first audio signal from at least a first channel and a second audio signal from at least a second channel of at least two channels of a multichannel audio signal; determine a scaling factor dependent on the direction of arrival associated with the first audio signal and the second audio signal; and apply the scaling factor to a parameter associated with a difference in audio signal levels between the first audio signal and the second audio sign.
    Type: Grant
    Filed: July 1, 2008
    Date of Patent: May 5, 2015
    Assignee: Nokia Corporation
    Inventor: Pasi Ojala
  • Patent number: 8995684
    Abstract: A digital audio data output device having first and second post-processors that process received digital audio data in parallel. Each processor includes a mixer unit that processes received digital audio data on the fly in response to a channel mode control signal, and a volume control unit that adjusts volume level of output of the mixer unit on the fly in response to a volume level control signal. Each mixer unit includes first and second buffers that can respectively store first and second channel data, a calculator that calculates mix data from the outputs of the buffers, a third buffer that stores the mix data, and an output unit. The output unit selects and outputs one of the received digital audio data, the output of the first buffer, the output of the second buffer, the mix data, and output of the third buffer, as the output of the mixer unit.
    Type: Grant
    Filed: March 26, 2012
    Date of Patent: March 31, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ki-Mo Kim, Tae-Young Lee
  • Publication number: 20150086022
    Abstract: The invention relates to a method for improving a stereo audio signal of an FM stereo radio receiver. The method comprises determining one or more parametric stereo parameters based on the stereo audio signal in a frequency-variant or frequency-invariant manner. Preferably, these PS parameters are time- and frequency-variant. Moreover, the method comprises generating the improved stereo signal based on a first audio signal and the one or more parametric stereo parameters. The first audio signal is obtained from the stereo audio signal, e.g. by a downmix operation.
    Type: Application
    Filed: November 26, 2014
    Publication date: March 26, 2015
    Inventors: Jonas ENGDEGARD, Heiko PURNHAGEN, Karl Jonas ROEDEN
  • Patent number: 8976969
    Abstract: A method and apparatus is disclosed in which delay is applied to analog-sourced audio in a radio simulcast when the analog signal initially leads the digital signal. A radio receiver is configured to receive a simulcast radio program broadcast with an analog signal and a digital signal. The program content can be extracted from either the analog or digital signals, with the audio source eventually being blended to the digital signal. Audio is initially provided based on the analog signal. If the analog signal is initially leading the digital signal, delay is applied a data stream corresponding to the analog signal relative to a data stream corresponding to the digital signal. Delay applied to the data stream corresponding to the analog signal is increased at a rate that avoids audio artifacts of the output audio. The blend is performed when the data streams are aligned in time.
    Type: Grant
    Filed: June 29, 2011
    Date of Patent: March 10, 2015
    Assignee: Silicon Laboratories Inc.
    Inventors: Javier Elenes, Dana Taipale, Dave Anderton
  • Patent number: 8971541
    Abstract: A method and apparatus are provided for generating a personalized radio channel playlist by simultaneously buffering tracks from multiple received channels from one or more source streams and selectively playing back tracks from the buffered channels. Navigation tools permit users to skip buffered songs in their playlist (e.g., skip forward and backward). Users can specify favorite channels for building personal playlists, or multiple default playlist channels can be provided (e.g., by genre). Thumbs up/down buttons on the radio receiver permit entering a song or artist being played back into a favorites list that is used to search all channels for matches or a banned list used to block songs from future playlists. A matched channel carrying the favorite can be added to a playlist. Segments on the playlist can be played back in full or truncated to facilitate preview of playlist segments.
    Type: Grant
    Filed: June 29, 2012
    Date of Patent: March 3, 2015
    Assignee: Sirius XM Radio Inc.
    Inventor: Paul D. Marko
  • Publication number: 20150055781
    Abstract: A wireless speaker device includes a speaker module, a processing module, a wireless module and a control module. The processing module may receive the mate signal sent by the adjacent wireless speaker device through the wireless module or send the mate signal sent to the adjacent wireless speaker device through the wireless module to establish a wireless multi-channel audio system. Therefore, the connections of the wireless speaker devices within the wireless multi-channel audio system are simplified. Ans the cost time to mate for connection is reduced. Also, the connection is automated to be convenient for users to operate.
    Type: Application
    Filed: June 11, 2014
    Publication date: February 26, 2015
    Applicant: Global Digitech Co., LTD.
    Inventor: Yu-Wen CHEN
  • Publication number: 20150055782
    Abstract: A system for wirelessly transmitting and receiving customized data broadcasts comprising at least one computer apparatus running an application for customized data broadcasts. The computer apparatus uses the application to transmit and/or receive at least one broadcast. The system is further comprised of a server network infrastructure with: the application, at least one application server, at least one web server; and at least one database/information server. The infrastructure, servers, and application comprise a distributed computing environment in a secure server network model wherein the environment utilizes the application as a secure communicator of the broadcasts, thereby enabling secure communication of the broadcasts between any computer apparatus running the application.
    Type: Application
    Filed: October 2, 2014
    Publication date: February 26, 2015
    Inventors: Massoud Alibakhsh, Shahram Famorzadeh
  • Patent number: 8942989
    Abstract: Disclosed is an audio encoding device which removes unnecessary inter-channel parameters from the subject to be encoded, improving the encoding efficiency thereby. In this audio encoding device, a principal component analysis unit (301) converts an inputted left signal {Lsb(f)} and an inputted right signal {Rsb(f)} into a principal component signal {PCsb(f)} and an ambient signal {Asb(f)} and calculates for each sub-band, a rotation angle which indicates the degree of conversion; a monophonic encoding unit (303) encodes the principal component signal {Pcsb(f)}; a rotation angle encoding unit (302) encodes the angle of rotation {?b}; a local monophonic decoding unit (603) creates a decoded principal component signal; and a redundant parameter elimination unit (604) identifies the redundant parameters by analyzing the encoding quality of the decoded principal component signal and eliminates the redundant parameters from the signal to be encoded.
    Type: Grant
    Filed: December 27, 2010
    Date of Patent: January 27, 2015
    Assignee: Panasonic Intellectual Property Corporation of America
    Inventors: Zongxian Liu, Kok Seng Chong
  • Patent number: 8934635
    Abstract: A method of optimizing stereo reception for an analog radio by applying the demodulated right sound signal (SD) and left sound signal (SG) as input to a decorrelation module having a variable decorrelation rate. The decorrelation rate of the decorrelation module is modified as a function of the reception quality coefficient “alpha” provided by the radio. The decorrelation module applies a higher decorrelation rate for a smaller reception quality coefficient “alpha” and applies a lower decorrelation rate for a larger reception quality coefficient “alpha. Also, a module for generating high-pitched sounds to recreate the high-frequency component (SHF) of the right or left sound signals which has been removed in the event of poor reception.
    Type: Grant
    Filed: December 21, 2010
    Date of Patent: January 13, 2015
    Assignee: Arkamys
    Inventors: Thomas Esnault, Frédéric Amadu
  • Patent number: 8934634
    Abstract: A noise level of an output signal is maintained low. An adjacent interference detecting unit compares a signal level of a wide band signal which is a desired station signal of a relatively wide band and a signal level of a narrow band signal which is a desired station signal of a relatively narrow band, and judges that adjacent interference has occurred when the signal level of the narrow band signal is less than or equal to a predetermined level even though the signal level of the wide band signal is greater than or equal to a predetermined level. A variable amplifier (36) attenuates an L?R signal and forms a monophonic signal when the signal level of the narrow band signal is lower than a predetermined level. With this process, when there is adjacent interference, a signal level of the narrow band signal at which the attenuating unit starts attenuating the L?R signal is changed to a relatively high value.
    Type: Grant
    Filed: February 22, 2011
    Date of Patent: January 13, 2015
    Assignee: Semiconductor Components Industries, LLC
    Inventors: Kazunari Kurokawa, Shinya Inaba
  • Patent number: 8917873
    Abstract: A mobile terminal includes an apparatus for reducing Time Division Multiple Access (TDMA) noise in the mobile communication terminal. The apparatus includes a first output path including a resistance element; a second output path not including a resistance element; a modem for, when detecting an event for outputting an audio signal, determining an output path of the audio signal and outputting a control signal indicating the determined output path; and a switch for switching according to the control signal and providing the audio signal to either the first output path or the second output path.
    Type: Grant
    Filed: February 17, 2012
    Date of Patent: December 23, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Gi-Bae Kim
  • Patent number: RE46684
    Abstract: Estimates of spectral magnitude and phase are obtained by an estimation process using spectral information from analysis filter banks such as the Modified Discrete Cosine Transform. The estimation process may be implemented by convolution-like operations with impulse responses. Portions of the impulse responses may be selected for use in the convolution-like operations to trade off between computational complexity and estimation accuracy. Mathematical derivations of analytical expressions for filter structures and impulse responses are disclosed.
    Type: Grant
    Filed: November 13, 2012
    Date of Patent: January 23, 2018
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Corey I. Cheng, Michael J. Smithers, David N. Lathrop