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公开(公告)号:US11984861B2
公开(公告)日:2024-05-14
申请号:US18116755
申请日:2023-03-02
发明人: Kofi Odame , Yueh-Ching Teng
CPC分类号: H03G3/3036 , H03F3/24
摘要: An amplitude detector has a phase shifter such as one using an analog differentiator and an adjustable gain stage, or one using a determinable delay, the phase shifter coupled to shift phase of an input signal to the amplitude detection apparatus. The detector also has a first analog multiplier coupled to square the input signal, a second analog multiplier coupled to square output of the phase shifter; and an analog adder coupled to sum outputs of the first and second analog multiplier. An automatic gain control circuit has the amplitude detector coupled to control gain of a controllable amplifier.
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公开(公告)号:US11980809B2
公开(公告)日:2024-05-14
申请号:US18199441
申请日:2023-05-19
CPC分类号: A63F13/25 , A63F13/54 , A63F13/87 , G06F3/165 , H03G3/02 , H03G3/20 , H03G3/3005 , H04R1/1041 , H04R2430/01
摘要: Methods and systems are provided for independent audio volume control. An audio system may include a circuit for controlling one or both of generation and output of combined audio, with the circuit being configured to determine, based on user input, a mix setting applicable in the audio system to mixing of a first audio and a second audio when generating the combined audio, wherein the combined audio comprises at least a portion of each of the first audio and the second audio; determine a corresponding volume setting applicable at an audio output element of the audio system during outputting of the combined audio; determine a corresponding delay applicable to one or both of the mix setting and the volume setting; and apply one or both of the mix setting and the volume setting based on at least the delay.
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公开(公告)号:US20240146273A1
公开(公告)日:2024-05-02
申请号:US18493143
申请日:2023-10-24
申请人: Caavo Inc
摘要: Systems, methods, and computer readable storage medium are described for media presentation device or microphone calibration via event detection. An adjustment event is detected based on an analysis of a received signal. A determination to adjust at least one of a volume setting of a media presentation device or a gain setting of a microphone is made based at least on the detected adjustment event. Responsive to the determination, a first command is transmitted to at least one of the media presentation device or the microphone. In an aspect, the received signal is an audio data signal received from a listening device. In another aspect, the received signal is a command signal received from a second computing device via a network interface, the command signal comprising instructions to adjust the volume setting of the media presentation device, the second computing device remotely located and associated with a second user.
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公开(公告)号:US11973477B2
公开(公告)日:2024-04-30
申请号:US17392544
申请日:2021-08-03
发明人: Hideaki Majima
CPC分类号: H03F3/45475 , H01P1/36 , H03G3/30 , H03K5/24 , H03F2200/375 , H03G2201/103
摘要: According to one embodiment, a signal processing circuit includes a first voltage setting circuit that sets a reference voltage on an input side of an isolator, a variable gain amplifier circuit that amplifies an output signal of the isolator, a DC offset adjustment circuit that adjusts an offset of the variable gain amplifier circuit, a second voltage setting circuit that sets a reference voltage on an output side of the isolator, and a control circuit that controls the DC offset adjustment circuit in response to a result of comparison of an output voltage of the variable gain amplifier circuit with an output voltage of the second voltage setting circuit.
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公开(公告)号:US20240137059A1
公开(公告)日:2024-04-25
申请号:US18499138
申请日:2023-10-30
申请人: pSemi Corporation
发明人: Parvez DARUWALLA , Sung Kyu HAN
CPC分类号: H04B1/1615 , H03F3/195 , H03G3/3052 , H04B1/18 , H03F2200/294
摘要: Methods and devices for limiting the power level of low noise amplifiers (LNA) implemented in radio frequency (RF) receiver front-ends. The described methods are applicable to bypass, low and high gain modes of the LNA. According to the described methods, the decoder allows the signal to be clamped before or after being attenuated. The benefit of such methods is to improve large signal performances (e.g. IIP3, P1dB) of the RF receiver front-end, while still meeting the clamping requirements, or improve (lower) clamped output power, while still meeting large signal performances (e.g. IIP3, P1dB).
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公开(公告)号:US20240136987A1
公开(公告)日:2024-04-25
申请号:US18048225
申请日:2022-10-19
发明人: Duy P. Nguyen , Nguyen L.K. Nguyen , Thanh T. Pham , Trong Phan , Stefano D'Agostino , Wayne Kennan
CPC分类号: H03F3/4508 , H03G3/30 , H03F2200/447 , H03F2200/468 , H03G2201/103
摘要: Amplifiers with temperature-adaptive gain and peaking gain control are described. In one example, a temperature-adaptive amplifier includes an amplifier, a temperature sense circuit, and a peaking control level shifter to bias shift the output of the amplifier and adjust a peaking gain of the amplifier based on the temperature control signal. The peaking control level shifter can adjust a peaking gain of the amplifier based on the temperature control signal. The temperature-adaptive control can help to compensate for peaking gain in amplifiers based on the operating temperature of the amplifier. The control can help to compensate for unwanted changes in amplifier peaking gain, over time, resulting in more consistent peaking gain over the full operating frequency range of amplifiers.
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公开(公告)号:US11968500B2
公开(公告)日:2024-04-23
申请号:US17720744
申请日:2022-04-14
申请人: Oticon A/S
CPC分类号: H04R25/505 , H04R25/40 , H04R25/43 , H04R25/554 , H04R25/604
摘要: A hearing device, e.g. a hearing aid, comprises a) at least one input transducer for converting sound in the environment of the hearing device to respective at least one acoustically received electric input signal or signals representing said sound; b) a wireless receiver for receiving an audio signal from a wireless transmitter of a sound capturing device for picking up sound in said environment and providing a wirelessly received electric input signal representing said sound; and c) a processor configured c1) to receive said at least one acoustically received electric input signal or signals, or a processed version thereof; c2) to receive said wirelessly received electric input signal; and c3) to provide a processed signal. The processor comprises a signal predictor for estimating future values of said wirelessly received electric input signal in dependence of a multitude of past values of said signal, thereby providing a predicted signal. The hearing device further comprises d) an output transducer for presenting output stimuli perceivable as sound to the user in dependence of said processed signal from said processor, or a further processed version thereof. The processor is configured to provide said processed signal in dependence of the predicted signal or a processed version thereof 1) alone, or 2) mixed with said at least one acoustically received electric input signal or signals, or a processed version thereof. A hearing device comprising an earpiece and a separate audio processing device is further disclosed. The invention may e.g. be used in hearing devices in wireless communication with audio capture devices in an immediate environment of the user wearing the hearing device.
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公开(公告)号:US11962279B2
公开(公告)日:2024-04-16
申请号:US18327585
申请日:2023-06-01
IPC分类号: H04R29/00 , G10L21/038 , G10L25/21 , G10L25/51 , H03G1/00 , H03G3/30 , H03G5/00 , H03G7/00 , H03G9/00 , H04R3/00 , H04R3/04
CPC分类号: H03G3/3005 , G10L21/038 , G10L25/21 , G10L25/51 , H03G1/00 , H03G3/3089 , H03G7/007 , H03G9/005 , H04R3/00 , H04R3/04 , H04R2430/03
摘要: In some embodiments, a method for processing an audio signal in an audio processing apparatus is disclosed. The method includes receiving an audio signal and a parameter, the parameter indicating a location of an auditory event boundary. An audio portion between consecutive auditory event boundaries constitutes an auditory event. The method further includes applying a modification to the audio signal based in part on an occurrence of the auditory event. The parameter may be generated by monitoring a characteristic of the audio signal and identifying a change in the characteristic.
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公开(公告)号:US11959416B1
公开(公告)日:2024-04-16
申请号:US18488037
申请日:2023-10-17
发明人: Yuto Yoshizaki
CPC分类号: F02B77/13 , H02G3/0437
摘要: An engine includes a cylinder head, a wire assembly including multiple wire harnesses and a protector that holds the wire harnesses together, a sound absorber, and an engine cover. The engine cover is attached to the cylinder head in a state in which the wire assembly and the sound absorber are held between the cylinder head and the engine cover to elastically deform the sound absorber. The protector is held in a state of being pressed against the cylinder head by a restoring force of the sound absorber. The sound absorber includes a contact region pressed against the protector. The sound absorber includes an engagement portion located at an edge of the contact region. The engagement portion is thicker than the thickness of the contact region. The engagement portion is adjacent to a side surface of the protector.
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公开(公告)号:US20240121020A1
公开(公告)日:2024-04-11
申请号:US18545490
申请日:2023-12-19
申请人: DISH Wireless L.L.C.
发明人: Kevin Yao , Bill Versteeg
IPC分类号: H04B17/345 , H03G3/20 , H04B1/10 , H04B17/318 , H04L67/12
CPC分类号: H04B17/345 , H03G3/20 , H04B1/1027 , H04B1/1036 , H04B17/318 , H04L67/12 , H04B17/21
摘要: Devices, systems and processes for identifying and detecting an interfering signal are described. A process may include conducting a scan of one or more frequency bands to obtain at least one scan result and determining therefrom if a response condition has been detected. If so detected, a first frequency band corresponding to the detected response condition may be identified and a response condition action to be performed determined. If no response condition action is to be performed, scanning continues. If a response condition is to be performed two or more available sensors are identified and a first sensor is selected. A scan plan is developed and then initiated by the first sensor. Data from the first sensor is received and analyzed to identify a second frequency band indicative of an interfering signal. Based on at least the scan data, a location for a signal interference source (SIS) may be estimated.
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