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81. 发明申请

US20190058950A1 SURROUND SOUND APPLICATIONS AND DEVICES FOR VERTICALLY-ORIENTED CONTENT 审中-公开
公开(公告)号：US20190058950A1
公开(公告)日：2019-02-21
申请号：US16168621
申请日：2018-10-23
申请人： Thomas Mitchell Dair
发明人： Thomas Mitchell Dair
IPC分类号： H04R5/02 , H04S3/00 , G06F3/16 , H03G3/20 , H04R1/02
摘要： Examples described herein include robotic audio accessories associated with content delivery systems that are configured to interact with content provided by a content delivery device. An example robotic audio accessory includes a speaker mounted on an automated moveable base. The robotic audio accessory is configured to wirelessly communicate with a content delivery device. The robotic audio accessory is further configured to emit sound associated with content provided by the content delivery device via the audio speaker and to move autonomously via the automated moveable base in response to the content and commands provided by the content delivery device.

82. 发明授权

US10193498B2 Method and system for boosting the supply of power amplifier 有权
公开(公告)号：US10193498B2
公开(公告)日：2019-01-29
申请号：US14124727
申请日：2012-06-14
申请人： David Leonardo Fleischer
发明人： David Leonardo Fleischer
IPC分类号： H03G3/20 , H03F1/02 , H03F3/24 , H04L27/26 , H03F3/189
摘要： The present invention relates to a system for boosting the power supply of an RF power amplifier in high peak to average power ratio applications, wherein said power amplifier is coupled to receive and amplify a digital data stream of a baseband signal, (e.g., which after modulation with a carrier wave are supplied as the RF input signal to said power amplifier to generate an RF output signal). Said system comprises: a) a first circuit for controlling said boost by said digital data stream of said baseband signal in open-loop, wherein the timing of said boost event can be adjusted according to delays in the data stream of said system, wherein said boost event is imparted as a copy of the most significant bits of said baseband signal; and b) a second circuit for adjusting the precise timing of said boost event in such a way that the signal which controls said second circuit is the result of a comparison between a digital form of said RF input signal and/or a digital representation of the waveform of said power supply and said digital baseband signal, wherein said comparison represents the substantial matching of the delays in the paths of RF input signal and said power supply.

83. 发明申请

US20190013281A1 Integrated Receiver Circuit For Electromagnetic Pulse Detection In Wireless Microcontrollers 审中-公开
公开(公告)号：US20190013281A1
公开(公告)日：2019-01-10
申请号：US15644451
申请日：2017-07-07
申请人： Silicon Laboratories Inc.
发明人： Javier Elenes , Michael Johnson , John Khoury
IPC分类号： H01L23/00 , H03G3/20
摘要： An integrated circuit includes an energy detection circuit, a switching circuit, and a tamper response circuit. The integrated circuit has an input for receiving a radio frequency (RF) signal, a first output for providing a demodulated signal, and a second output for selectively providing a detect signal. The detect signal is provided in response to detecting that an energy of an internal signal exceeds a first threshold when the integrated circuit is in a secure mode. The switching circuit is used to alternatively switch the input of the energy detection circuit to an RF input terminal in a normal mode and to an internal antenna in a secure mode. The tamper response circuit disables a function of the integrated circuit in response to an activation of the detect signal in the secure mode.

84. 发明授权

US10175930B2 Method and apparatus for playback by a synchrony group 有权
公开(公告)号：US10175930B2
公开(公告)日：2019-01-08
申请号：US13848932
申请日：2013-03-22
申请人： SONOS, INC.
发明人： Nicholas A. J. Millington
IPC分类号： G06F15/16 , G06F3/16 , H04J3/06 , H04R27/00 , G06F17/00 , H03G3/20 , H04L29/06 , G06F3/048 , H04L29/08 , G06F3/0484 , H04R3/12 , G06F17/30 , G06F3/0482 , H03G3/00 , G06F1/00 , H04H20/10 , H04H20/26 , G05B15/02 , G11B20/10 , H04N5/04 , H04N9/79 , H04N21/43 , H04N21/436 , G06F1/12 , H04L12/28 , H04W56/00 , H04W84/20
摘要： In a network comprising at least a first zone player and a second zone player, a method comprising: receiving, at a user interface module, a command to establish a synchrony group, wherein the synchrony group comprises at least the first zone player and the second zone player; and displaying, at the user interface module, a list of information identifying a plurality of items queued for playback by the synchrony group, wherein (i) at least one of the items on the list has associated location data indicating the at least one item is located on a device attached to the local area network, and (ii) at least one other of the items on the list has associated location data indicating the at least one other item is located on a wide area network.

85. 发明授权

US10171085B2 Noise-immune reference (NREF) integrated in a programmable logic device 有权
公开(公告)号：US10171085B2
公开(公告)日：2019-01-01
申请号：US15921201
申请日：2018-03-14
申请人： AnDAPT, Inc.
发明人： Patrick J. Crotty , John Birkner , Kapil Shankar
IPC分类号： H03K19/177 , G06F7/38 , H03G3/20 , H03G1/00
摘要： A reference voltage block integrated in a programmable logic device (PLD) includes: an accumulator comprising an adder and a register and configured to receive a digital reference value and generate a carry out signal; a low-pass filter configured to receive the carry out signal from the accumulator and generate a filtered signal; and a variable analog gain amplifier configured to amplify the filtered signal using a gain selected from a predetermined set of gains and generate a reference voltage output signal. The PLD includes a programmable fabric and a signal wrapper that is configured to provide signals between the reference voltage block and the programmable fabric. The digital reference value and the predetermined set of gains of the reference voltage block are programmably using the programmable fabric and fed to the reference voltage block via the signal wrapper.

86. 发明授权

US10170093B2 Preamplification system for an acoustic guitar or other music instrument with vibrating parts 有权
公开(公告)号：US10170093B2
公开(公告)日：2019-01-01
申请号：US15310895
申请日：2015-05-12
申请人： HEART SOUND ITALY S.R.L.
发明人： Antonio Selmo
IPC分类号： G10K15/08 , G10H1/00 , H03G3/00 , G10H1/043 , G10H3/18 , G10H3/14 , H03F3/183 , H03F3/45 , H03F3/70 , H03G3/20
摘要： A sound detection system of a musical instrument with vibrating parts includes at least a pair of sensors and a preamplification unit for processing the signal output from the two sensors along respective channels. At least one of the pair of sensors is a piezoelectric transducer and the other one of the pair of sensors is a different-type transducer. The preamplification unit includes, for each channel, an input stage, including an amplifier circuit and an equalization circuit, and an output stage including at least a weighted adder circuit and at least two volume controls with arbitrary logarithmic response curve. At least the input stage for the channel of the piezoelectric transducer is a charge amplifier circuit and at least one of the other input stages can be configured both as a charge amplifier and as non-inverting amplifier with high input impedance. The equalization circuit includes an RC circuit.

87. 发明申请

US20180374472A1 Audio Control Systems And Methods Based On Road Characteristics And Vehicle Operation 审中-公开
公开(公告)号：US20180374472A1
公开(公告)日：2018-12-27
申请号：US15633110
申请日：2017-06-26
申请人： GM Global Technology Operations LLC
发明人： Frank C. VALERI , Scott M. REILLY , Roger C. BARLOW, JR.
IPC分类号： G10K15/02 , H03G3/20 , H03G9/00
摘要： A sound control module is configured to, based on a type of road over which a vehicle is traveling and a smoothness of the road, at least one of: determine a first frequency and a first increase at which to increase a first magnitude of a microphone signal; and determine a second frequency and a first decrease at which to decrease a second magnitude of the microphone signal. An audio driver module is configured to: receive the microphone signal from a microphone of the vehicle; generate an adjusted microphone signal by at least one of: increasing the first magnitude of the microphone signal at the first frequency based on the first increase; and decreasing the second magnitude of the microphone signal at the second frequency based on the first decrease; and apply power to a speaker of the vehicle based on the adjusted microphone signal.

88. 发明申请

US20180373491A1 Playback Device 审中-公开
公开(公告)号：US20180373491A1
公开(公告)日：2018-12-27
申请号：US16119352
申请日：2018-08-31
申请人： Sonos, Inc.
发明人： Nicholas A.J. Millington
IPC分类号： G06F3/16 , H04W84/20 , G05B15/02 , H04W56/00 , G06F1/00 , G06F1/12 , G06F3/048 , H04R27/00 , H04R3/12 , H04N21/436 , H04N21/43 , H04N9/79 , H04N5/04 , H04L29/06 , H04L29/08 , H04L12/28 , H04J3/06 , H04H20/26 , H04H20/10 , H03G3/20 , H03G3/00 , G11B20/10 , G06F17/30 , G06F17/00 , G06F3/0484 , G06F3/0482
摘要： A system is described for maintaining synchrony of operations among a plurality of devices that have independent clocking arrangements. The system includes a task distribution device that distributes tasks to a synchrony group comprising a plurality of devices that are to perform the tasks distributed by the task distribution device in synchrony. The task distribution device distributes each task to the members of the synchrony group over a network. Each task is associated with a time stamp that indicates a time, relative to a clock maintained by the task distribution device, at which the members of the synchrony group are to execute the task. Each member of the synchrony group periodically obtains from the task distribution device an indication of the current time indicated by its clock, determines a time differential between the task distribution device's clock and its respective clock and determines therefrom a time at which, according to its respective clock, the time stamp indicates that it is to execute the task.

89. 发明授权

US10164577B2 Linearization circuits and methods for multilevel power amplifier systems 有权
公开(公告)号：US10164577B2
公开(公告)日：2018-12-25
申请号：US14837616
申请日：2015-08-27
申请人： Eta Devices, Inc.
发明人： Mark A. Briffa , Joel L. Dawson , John E. DeRoo , Krenar Komoni , David J. Perreault , Oguzhan Uyar
IPC分类号： H03G3/20 , H03F1/02 , H03F3/19 , H03F3/217 , H03F1/32 , H03F3/24 , H03F3/60
摘要： Circuits and methods for achieving high linearity, high efficiency power amplifiers, including digital predistortion (DPD) and pulse cancellation in switched-state RF power amplifier systems are described.

90. 发明授权

US10164575B2 System for monitoring the peak power for an RF power amplification and associated method of calculating peak value and of selecting supply voltage 有权
公开(公告)号：US10164575B2
公开(公告)日：2018-12-25
申请号：US15543887
申请日：2016-01-11
申请人： WUPATEC
发明人： Emmanuel Gatard , Pierre Lachaud
IPC分类号： H03G3/20 , H03F1/02 , H03F3/189 , H03F3/24 , H04B1/04 , H02M3/156 , H03F3/19 , H04W52/36
摘要： Disclosed is a system for monitoring the peak power of a telecommunication signal to be transmitted for RF power amplification of the telecommunication signal to be transmitted, including a digital processing device, a digital to RF converter and a dc-dc converter, wherein the output of the dc-dc converter can take a discrete voltage value from N discrete voltage values, N being an integer equal to or greater than 2, the digital processing device including a processing path including an envelope tracking control logic adapted to create a continuous envelope tracking control signal. The processing path further includes logic for driving the dc-dc converter including a peak value calculating device and a power supply voltage selecting device.

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