公开(公告)号：US11625221B2

公开(公告)日：2023-04-11

申请号：US17686566

申请日：2022-03-04

申请人： Sonos, Inc

发明人： Nicholas A. J. Millington ,  Michael Darrell Andrew Ericson

IPC分类号： G06F3/16 ,  H04N21/436 ,  H04L65/80 ,  H04L69/28 ,  G06F16/60 ,  G06F16/63 ,  G06F16/638 ,  G06F16/68 ,  G06F16/23 ,  G06F16/635 ,  G05B15/02 ,  G06F1/00 ,  G06F1/12 ,  G06F3/048 ,  G06F3/0482 ,  G06F3/0484 ,  G06F3/04842 ,  G06F3/04847 ,  G06F17/00 ,  H03G3/00 ,  H03G3/20 ,  H04L12/28 ,  H04L65/1069 ,  H04L67/12 ,  H04W84/20 ,  H04J3/06 ,  H04N21/43 ,  H04L65/61 ,  H04L65/75 ,  H04L65/611 ,  H04L65/612 ,  H04L65/613 ,  H04L67/55 ,  H04R27/00 ,  H04L65/60 ,  H04L67/1095 ,  H04R3/12 ,  H04H20/10 ,  H04H20/26 ,  G11B20/10 ,  H04N5/04 ,  H04N9/79 ,  H04W56/00

摘要： Example systems, apparatus, and methods receive audio information including a plurality of frames from a source device, wherein each frame of the plurality of frames includes one or more audio samples and a time stamp indicating when to play the one or more audio samples of the respective frame. In an example, the time stamp is updated for each of the plurality of frames using a time differential value determined between clock information received from the source device and clock information associated with the device. The updated time stamp is stored for each of the plurality of frames, and the audio information is output based on the plurality of frames and associated updated time stamps. A number of samples per frame to be output is adjusted based on a comparison between the updated time stamp for the frame and a predicted time value for play back of the frame.

公开(公告)号：US11556305B2

公开(公告)日：2023-01-17

申请号：US17713152

申请日：2022-04-04

申请人： Sonos, Inc

发明人： Nicholas A. J. Millington ,  Michael Darrell Andrew Ericson

IPC分类号： G06F3/16 ,  G06F1/00 ,  G06F1/12 ,  G06F3/048 ,  G06F3/0482 ,  G06F3/0484 ,  G06F3/04842 ,  G06F3/04847 ,  G06F16/23 ,  G06F16/60 ,  G06F16/63 ,  G06F16/635 ,  G06F16/638 ,  G06F16/68 ,  G06F17/00 ,  G11B20/10 ,  H03G3/00 ,  H03G3/20 ,  H04H20/10 ,  H04H20/26 ,  H04J3/06 ,  H04L12/28 ,  H04L65/1069 ,  H04L65/60 ,  H04L65/80 ,  H04L67/1095 ,  H04L67/12 ,  H04L69/28 ,  H04N5/04 ,  H04N9/79 ,  H04N21/43 ,  H04N21/436 ,  H04R3/12 ,  H04R27/00 ,  H04W56/00 ,  H04W84/20 ,  G05B15/02 ,  H04L65/61 ,  H04L65/75 ,  H04L65/611 ,  H04L65/612 ,  H04L65/613 ,  H04L67/55

摘要： Example systems, apparatus, and methods receive audio information including a plurality of frames from a source device, wherein each frame of the plurality of frames includes one or more audio samples and a time stamp indicating when to play the one or more audio samples of the respective frame. In an example, the time stamp is updated for each of the plurality of frames using a time differential value determined between clock information received from the source device and clock information associated with the device. The updated time stamp is stored for each of the plurality of frames, and the audio information is output based on the plurality of frames and associated updated time stamps. A number of samples per frame to be output is adjusted based on a comparison between the updated time stamp for the frame and a predicted time value for play back of the frame.

公开(公告)号：US11516606B2

公开(公告)日：2022-11-29

申请号：US17033821

申请日：2020-09-27

申请人： Sonos, Inc.

发明人： Dayn Wilberding ,  Timothy Sheen

IPC分类号： G06F3/16 ,  H04R29/00 ,  H04S7/00 ,  H03G5/16 ,  H03G5/00 ,  H04R3/12 ,  H04R27/00 ,  H04R3/04 ,  H04R5/04 ,  H04S1/00 ,  H03G3/20 ,  H04R1/22

摘要： Examples disclosed herein relate to playback device calibration. A calibration state variable may represent a calibration state of a playback device. A control device may display an indications of the calibration state. For instance, in a first instance, the control device may display an indication that a first playback device is in an uncalibrated state. Further, in a second instance, the control device may display an indication that the first playback device is in an calibrated state, perhaps after instructing the first playback device to initiate calibration.

公开(公告)号：US11500609B2

公开(公告)日：2022-11-15

申请号：US16933142

申请日：2020-07-20

申请人： SAMSUNG ELECTRONICS CO., LTD.

发明人： Byeol Park ,  Gohwoon Jeong ,  Sangshin Park ,  Changkun Park ,  Daewon Yoon ,  Heeran Lee ,  Namsu Ha

IPC分类号： H03G3/20 ,  G06F3/16 ,  H03G3/24

摘要： A content reproducing electronic apparatus includes a communicator including circuitry, an audio output device, and a processor configured to receive state information indicating a state of an external electronic apparatus from the external electronic apparatus located around the electronic apparatus via the communicator, obtain noise information corresponding to the received state information, and control the audio output device to output an audio signal of a content based on a volume corresponding to the obtained noise information.

公开(公告)号：US11469711B2

公开(公告)日：2022-10-11

申请号：US16891701

申请日：2020-06-03

申请人： Murata Manufacturing Co., Ltd.

发明人： Mitsunori Samata

IPC分类号： H03G3/20 ,  H03F1/02 ,  H03F3/21

摘要： A power amplifier circuit includes a transistor having a base to which a radio frequency signal is input and a collector to which a power supply voltage that varies in accordance with an envelope of amplitude of the radio frequency signal is supplied and from which an amplified signal obtained by amplifying the radio frequency signal is output; a first termination circuit provided at a stage subsequent to the transistor and configured to attenuate a harmonic component of the amplified signal; and a second termination circuit provided at the stage subsequent to the transistor and configured to attenuate a harmonic component of the amplified signal. The first termination circuit and the second termination circuit have a property of resonating for a radio frequency signal having a frequency between a frequency of a second harmonic component and a frequency of a third harmonic component.

公开(公告)号：US11444583B2

公开(公告)日：2022-09-13

申请号：US16737783

申请日：2020-01-08

申请人： pSemi Corporation

发明人： Dan William Nobbe ,  David Halchin

IPC分类号： H03G3/20 ,  H03F1/32 ,  H03F1/30 ,  H03F3/195 ,  H03F3/72 ,  H03F1/02 ,  H03F3/193 ,  H03G3/30

摘要： Methods and systems for optimizing amplifier operations are described. The described methods and systems particularly describe a feed-forward control circuit that may also be used as a feed-back control circuit in certain applications. The feed-forward control circuit provides a control signal that may be used to configure an amplifier in a variety of ways.

公开(公告)号：US20220272470A1

公开(公告)日：2022-08-25

申请号：US17742801

申请日：2022-05-12

申请人： Voyetra Turtle Beach, Inc.

发明人： Richard Kulavik

IPC分类号： H04R29/00 ,  H02J7/00 ,  H04R3/00 ,  H03G3/20 ,  H03G3/02 ,  H03G3/30 ,  H04R1/10 ,  G06F3/16

摘要： An electronic device may comprise audio processing circuitry and a universal serial bus (USB) connector having a first contact and a second contact. In a first mode of operation, the audio processing circuitry is configured to output one or more audio signals carrying music and/or voice via the first contact and the second contact. In a second mode of operation, the audio processing circuitry is configured to output a signal for delivering supply current via the first contact and the second contact. While the electronic device is in the first mode of operation, a gain and/or volume limit of the audio processing circuitry may be set to a first level, and while the electronic device is in the second mode of operation, the gain and/or volume limit of the audio processing circuitry may be set to a second level that is higher than the first level.

公开(公告)号：US20220216887A1

公开(公告)日：2022-07-07

申请号：US17603944

申请日：2020-08-03

申请人： SUNWAVE COMMUNICATIONS CO., LTD.

发明人： Lumin ZHU ,  Hangdi HONG

IPC分类号： H04B1/04 ,  H04B1/16 ,  H04W52/08 ,  H03G3/20

摘要： The present application relates to a gain control method and an apparatus, comprising an automatic gain controller. An input power of a PSS in an input signal is detected in real time, a rated power of a downlink PSS that acts as a gain control threshold of the automatic gain controller is acquired, and the automatic gain controller is controlled to adjust a value of gain attenuation according to magnitudes of the input power of the PSS and the rated power of the downlink PSS, which is used to adjust an uplink gain and a downlink gain.

公开(公告)号：US11361788B2

公开(公告)日：2022-06-14

申请号：US16672718

申请日：2019-11-04

申请人： Seagate Technology LLC

发明人： Jason Bellorado ,  Marcus Marrow ,  Zheng Wu

IPC分类号： G11B5/596 ,  G11B20/10 ,  G06F13/10 ,  G06F13/42 ,  G06F1/08 ,  G06F1/12 ,  H04L25/03 ,  H03L7/093 ,  H03L7/095 ,  H03L7/07 ,  H03L7/081 ,  H03L7/091 ,  H04L7/00 ,  H04L7/033 ,  H03K5/131 ,  H03M1/00 ,  H03M13/41 ,  H03K5/135 ,  H03G3/20 ,  H03M1/12 ,  H03M13/29 ,  H04B1/7105 ,  H03K5/00

摘要： Systems and methods are disclosed for full utilization of a data path's dynamic range. In certain embodiments, an apparatus may comprise a circuit including a first filter to digitally filter and output a first signal, a second filter to digitally filter and output a second signal, a summing node, and a first adaptation circuit. The summing node combine the first signal and the second signal to generate a combined signal at a summing node output. The first adaptation circuit may be configured to receive the combined signal, and filter the first signal and the second signal to set a dynamic amplitude range of the combined signal at the summing node output by modifying a first coefficient of the first filter and a second coefficient of the second filter based on the combined signal.

公开(公告)号：US11349436B2

公开(公告)日：2022-05-31

申请号：US16855154

申请日：2020-04-22

申请人： Qorvo US, Inc.

发明人： Nadim Khlat

IPC分类号： H03G3/20 ,  H03F1/02 ,  H03F3/20 ,  H03F3/68 ,  H03F3/45 ,  H02M3/07 ,  G05F1/46

摘要： An envelope tracking integrated circuit having a tracker circuitry configured to generate a modulated supply voltage for a radio frequency power amplifier in response to an envelope of a radio frequency signal to be amplified by the radio frequency power amplifier is disclosed. Also included is a charge pump system configured to generate a tracker supply voltage for the tracker circuitry. Further included is an analog multiplexer configured to receive the tracker supply voltage and a battery source voltage and output a selected one of the tracker supply voltage and the battery source voltage in response to a voltage select signal. A digital processor further included in the envelope tracking integrated circuit is configured to control portions of the tracker circuitry and be powered by the selected one of the tracker supply voltage and the battery source voltage during transmission gaps when the radio frequency signal is not transmitted.