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公开(公告)号：US20240063762A1
公开(公告)日：2024-02-22
申请号：US18496448
申请日：2023-10-27
申请人： Nevin STEINBERG , Andrew FUNK , Jason CRYSTAL
发明人： Nevin STEINBERG , Andrew FUNK , Jason CRYSTAL
CPC分类号： H03F3/185 , H04R29/007 , H03G9/005 , H03G3/32
摘要： An exemplary audio enhancement system substantially eliminates latency by returning audio input signals in amplified form directly in the analog domain to the source, thereby reducing signal degradation and removing redundancy from digital and analog audio transmission and processing architectures.
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公开(公告)号：US11910171B2
公开(公告)日：2024-02-20
申请号：US17111967
申请日：2020-12-04
申请人： Apple Inc.
发明人： Zhigang Dang , Daniel Naito , Evan Thompson , Peter Poon , Manasi Lagare , Michael Nussbaum , David Sumberg
CPC分类号： H04R3/007 , H03F3/183 , H03G3/3005 , H03F2200/03
摘要： A smart speaker power controller may be configured to receive power conforming to one of a plurality of power modes from an input power source. The power controller may be further configured to communicate the power mode to at least one component of a processing system or at least one component of an audio system for operating the smart speaker according to the received power mode, including determining a current limit of a power converter; determining a shutdown voltage threshold and safely shutting down the smart speaker if the input voltage falls below the threshold, and/or modifying audio operation of the smart speaker in response to the power mode. The smart speaker can further include an audio power supply controller configured to monitor energy required to reproduce an audio signal and to servo a power supply voltage provided to an audio amplifier in response to this energy level.
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公开(公告)号：US11909366B2
公开(公告)日：2024-02-20
申请号：US17555460
申请日：2021-12-19
发明人： Kamel Benboudjema , Richard Kalantar Ohanian , Aram Garibyan , Abdelkrim El Amili , Scott Singer
IPC分类号： H03G3/20 , H03G3/30 , H03F3/08 , G01S17/931 , G01S7/481
CPC分类号： H03G3/30 , G01S7/4816 , G01S17/931 , H03F3/08 , H03F2200/129 , H03G2201/103
摘要： Various technologies described herein pertain to variable gain amplification for a sensor application. A multistage variable gain amplifier system provides variable gain amplification of an input signal. The multistage variable gain amplifier system includes a plurality of amplification stages. The multistage variable gain amplifier system further includes a power detector configured to detect a power level of an input signal received by the multistage variable gain amplifier system. The multistage variable gain amplifier system also includes a controller configured to control the amplification stages based on the power level of the input signal. The multistage variable gain amplifier system can output an output signal such that the amplification stages are controlled to adjust a gain applied to the input signal by the multistage variable gain amplifier system to output the output signal.
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公开(公告)号：US11894819B2
公开(公告)日：2024-02-06
申请号：US17176016
申请日：2021-02-15
申请人： Sensaphonics, Inc.
CPC分类号： H03G3/3005 , A61F11/08 , G06F3/165 , H03G5/165 , H04R1/08 , H04R1/1016 , H04R1/1041 , H04R1/1083 , H04R3/007 , H03G2201/103 , H04R2420/07 , H04R2430/01
摘要： An integrated system for hearing protection and enhancement having earpieces including microphones and receivers to provide for user control of ambience level (mic gain), monitor input, control over limiting of excessive levels, and frequency equalization, all with very wide input dynamic range capability and controlled output dynamic range. The user control comprises a wired or wireless smartphone app. Also, the wide input dynamic range is achieved by placement of limiter circuitry capable of handling the entire input dynamic range prior to the most dynamic range limited circuit blocks: digital EQ block, output amplifier, earpiece receiver, and the users' ears. Switches allow combining left and right signals to be directed to a user's favored ear, if necessary.
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公开(公告)号：US11888452B2
公开(公告)日：2024-01-30
申请号：US17228983
申请日：2021-04-13
发明人： Paul Raymond Andrys
CPC分类号： H03F1/523 , H03F1/0222 , H03F1/223 , H03F3/195 , H03F3/245 , H03F3/72 , H03F2200/294 , H03F2200/435 , H03F2200/451
摘要： Amplifier having input power protection. In some embodiments, an amplifier circuit can include an input node and an output node, and an amplifier implemented between the input node and the output node. The amplifier circuit can further include a bias circuit configured to provide a bias signal to the amplifier. The amplifier circuit can further include a protection circuit configured to generate a detected voltage representative of a peak of a radio-frequency signal present at the input node. The protection circuit can be further configured to enable a protection mode when the detected voltage is greater than a first threshold value and to disable the protection mode when the detected voltage is less than a second threshold value that is less than the first threshold value.
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公开(公告)号：US20240031750A1
公开(公告)日：2024-01-25
申请号：US18479606
申请日：2023-10-02
申请人： Sonos, Inc.
发明人： Hilmar Lehnert , Aurelio Ramos
CPC分类号： H04R29/001 , G01K1/14 , G01K3/10 , H03G3/3005 , H04R3/007 , H03G2201/708
摘要： To avoid damage from overheating, playback device operation can be modulated based on input from temperature sensors. An example method includes obtaining, via one or more temperature sensors carried by the playback device, temperature data. Based on the temperature data, a first temperature parameter is detected. In response to detecting the first temperature parameter, a gain of audio playback is decreased by a first amount. After decreasing the gain of audio playback by the first amount, a second temperature parameter is detected. In response to detecting the second temperature parameter, the gain of audio playback is decreased by a second amount different than the first amount.
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公开(公告)号：US20240028293A1
公开(公告)日：2024-01-25
申请号：US18479498
申请日：2023-10-02
申请人： Sonos, Inc.
发明人： Ted Lin , Romi Kadri
摘要： An example method includes receiving data indicating a configuration of one or more playback devices. The one or more playback devices may include one or more transducers. The method further includes, based on the received data, associating each of one or more audio streams respectively with at least one transducer of the one or more transducers. The method further includes generating the one or more audio streams and sending at least one of the generated one or more audio streams to each of the one or more playback devices. An example non-transitory computer readable medium and an example computing device related to the example method are also disclosed herein.
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公开(公告)号：US11881819B2
公开(公告)日：2024-01-23
申请号：US17611485
申请日：2020-05-15
申请人： Helm Audio Limited
发明人： Eric Johnson
CPC分类号： H03F3/187 , H03F3/211 , H03F3/45475 , H04R3/00 , H04R5/033 , H03F2200/03 , H03F2203/45138 , H03G5/025 , H04R1/1041 , H04R2430/01
摘要： A sound system includes a sound source having an analogue audio signal output and a sound volume control; signal amplifier apparatus (10) comprising an analogue signal input (12) configured to be coupled to the analogue audio signal output of the sound source, an analogue signal output (18) and an amplifier module (62) coupled between the signal input and the signal output. The amplifier module (62) has a fixed amplification gain within a range of 10 to 12 decibels. Control of the audio signal is effected solely by the sound volume control of the sound source. The amplifier module (64) also provides a fixed gain bass boost of 6 decibels. The system provides linear amplification and allows a user to reduce the volume of the sound source, which significantly reduces signal distortion. Volume control is at the sound source and not at the amplifier module, which optimises amplification quality and reduces the power requirement of the amplifier apparatus (10).
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公开(公告)号：US11877127B2
公开(公告)日：2024-01-16
申请号：US17590054
申请日：2022-02-01
发明人： Arto Lehtiniemi , Miikka Vilermo , Anssi Rämö , Toni Mäkinen
CPC分类号： H04R29/005 , G06V20/35 , H03G3/342 , H04S7/30 , H04S2400/15
摘要： An apparatus comprising means for:
capturing an audio scene using multiple microphones;
determining that the captured audio scene has unacceptable detected noise;
in dependence upon determining that the captured audio scene has unacceptable detected noise,
searching both different sets of one or more microphones and different physical rotation angles of the microphones to find a combination of a first set of one or more microphones and a first physical rotation angle of the microphones that captures the audio scene with acceptable detected noise; and
controlling the physical rotation angle of the microphones to be the first physical rotation angle of the microphones and capturing the audio scene using the combination of the first set of one or more microphones and the first physical rotation angle of the microphones.-
公开(公告)号：US11875804B2
公开(公告)日：2024-01-16
申请号：US17812109
申请日：2022-07-12
发明人： Jouni Paulus , Sascha Disch , Harald Fuchs , Bernhard Grill , Oliver Hellmuth , Adrian Murtaza , Falko Ridderbusch , Leon Terentiv
IPC分类号： G10L19/008 , G10L19/26 , H03G3/20
CPC分类号： G10L19/008 , G10L19/265 , H03G3/20
摘要： A decoder for generating an audio output signal having one or more audio output channels is provided, having a receiving interface for receiving an audio input signal having a plurality of audio object signals, for receiving loudness information on the audio object signals, and for receiving rendering information indicating whether one or more of the audio object signals shall be amplified or attenuated, further having a signal processor for generating the one or more audio output channels of the audio output signal, configured to determine a loudness compensation value depending on the loudness information and depending on the rendering information, and configured to generate the one or more audio output channels of the audio output signal from the audio input signal depending on the rendering information and depending on the loudness compensation value. One or more by-pass audio object signals are employed for generating the audio output signal. Moreover, an encoder is provided.
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