公开(公告)号：US11979125B2

公开(公告)日：2024-05-07

申请号：US17690629

申请日：2022-03-09

Applicant: Analog Devices, Inc.

Inventor： Gregory Lawrence Disanto

IPC: H03G3/30 ,  H03F3/04 ,  H03G3/00 ,  H03M7/16 ,  H03G1/00

CPC classification number: H03G3/002 ,  H03F3/04 ,  H03G3/30 ,  H03M7/165 ,  H03G1/0088 ,  H03G2201/103

Abstract: Techniques for setting a gain of an amplifier circuit in which the external resistor of the amplifier circuit is used to determine an internal gain setting to select. A voltage across the external resistor can be compared to an on-chip reference, and then used to program the desired gain. The techniques can mitigate or eliminate the need for a high-accuracy external resistor and can allow substantial improvements in initial gain accuracy and gain drift for existing boards and/or systems with only a bill of material change.

公开(公告)号：US20190222188A1

公开(公告)日：2019-07-18

申请号：US16328876

申请日：2017-09-22

Applicant: SONY CORPORATION

Inventor： YUJI TSUCHIDA

IPC: H03G5/16 ,  H03G9/00 ,  H03G3/00 ,  H03G9/18 ,  G06F16/68

CPC classification number: H03G5/165 ,  G06F16/68 ,  G10L21/034 ,  H03G3/002 ,  H03G9/005 ,  H03G9/18 ,  H04R3/04

Abstract: The present technology relates to an information processing device, an information processing method, and a program which are capable of obtaining sound volume correction effects more suitable for an auditory sensation.Target data which is a statistical value of metadata of each audio signal of an audio signal group is acquired, metadata of an audio signal to be reproduced is acquired, and either or both of a correction value of a sound volume of the audio signal to be reproduced and a correction value of a sound quality of the audio signal to be reproduced is calculated using the acquired target data and the acquired metadata. The present disclosure can be applied to, for example, an information processing device, an electronic device, a computer, a server, a program, a storage medium, a system, and the like.

公开(公告)号：US20180278223A1

公开(公告)日：2018-09-27

申请号：US15879466

申请日：2018-01-25

Applicant: International Business Machines Corporation

Inventor： Eli M. Dow ,  Thomas D. Fitzsimmons ,  Maurice M. Materise ,  Jessie Yu

IPC: H03G3/00 ,  H03G3/32

CPC classification number: H03G3/001 ,  H03G3/002 ,  H03G3/04 ,  H03G3/3005 ,  H03G3/3026 ,  H03G3/32

Abstract: Audio information of audio content being listened to by a user is received. An aspect of a listening environment of the user is identified. A volume preset, based on the audio information and the aspect of the listening environment, is determined to be available. A first volume of the audio content being listened to by the user is determined to be different from the volume preset. The first volume of the audio content is adjusted to a second volume.

公开(公告)号：US20170359043A1

公开(公告)日：2017-12-14

申请号：US15462074

申请日：2017-03-17

Applicant: NEOFIDELITY, INC.

Inventor： Yeongha CHOI

IPC: H03G3/00 ,  H03G5/00

CPC classification number: H03G3/002 ,  H03G5/005 ,  H03K7/08

Abstract: A system, a method for interleaving a digital audio signal including a PWM signal, and a digital audio processing device employing the same in accordance with the present invention are disclosed. The system, the method and the digital audio processing device is capable of minimizing the interference with an RF signal such as an AM signal or an FM signal by interleaving the digital audio signal including the PWM signal.

公开(公告)号：US09787267B2

公开(公告)日：2017-10-10

申请号：US15149062

申请日：2016-05-06

Applicant: Invensense, Inc.

Inventor： Mikael Mortensen ,  Jacob Midtgaard

IPC: H03F3/187 ,  H03G3/00 ,  H03F99/00 ,  H04R3/00 ,  H04B3/00 ,  H04B5/00 ,  H03F3/68

CPC classification number: H03G3/002 ,  H03F3/187 ,  H03F3/68 ,  H03F2200/03

Abstract: The present invention relates in one aspect to an audio amplification circuit comprising an input terminal for receipt of an input signal from a transducer. A signal processor is operatively coupled to the input terminal for receipt and processing of the input signal to generate a processed digital audio signal in accordance with a programmable configuration setting of the signal processor. A serial data transmission interface is configured for receipt of the processed digital audio signal and supply of a corresponding digital audio stream at an output terminal of the integrated audio amplification circuit. A serial data receipt interface is operatively coupled to an externally accessible configuration terminal of the integrated audio amplification circuit and a controller is configured to adjust one of the programmable configuration setting of the signal processor and a format of a digital audio stream in accordance with first configuration data received through the serial data receipt interface. The controller is in a first state is responsive to a logic state of the externally accessible configuration terminal to control the format of the digital audio stream or the programmable configuration setting. In a second state, the controller is configured for receipt and reading of the first configuration data through the externally accessible configuration terminal and the serial data receipt interface.

公开(公告)号：US20170179899A1

公开(公告)日：2017-06-22

申请号：US14974809

申请日：2015-12-18

Applicant: IBIQUITY DIGITAL CORPORATION

Inventor： Gabriel Olochwoszcz ,  Ashwini Pahuja ,  Scott Vincelette

IPC: H03G3/30 ,  H03G3/00 ,  G10L19/16

CPC classification number: H03G3/3005 ,  G10L19/167 ,  H03G3/002 ,  H04H20/22 ,  H04H20/26 ,  H04H20/47 ,  H04H40/36 ,  H04H2201/18

Abstract: A method for processing a digital audio broadcast signal includes: separating an analog audio portion and a digital audio portion of the digital audio broadcast signal; determining the loudness of the analog audio portion and the digital audio portion over a first short time interval; using the loudness of the analog and digital audio portions to calculate a short term average gain; determining a long term average gain; converting one of the long term average gain or the short term average gain to dB; if an output has been blended to digital, adjusting a digital gain parameter by a preselected increment to produce a digital gain parameter; if an output has not been blended to digital, setting the digital gain parameter to the short term average gain; providing the digital gain parameter to an audio processor; and repeating the above steps using a second short time interval.

公开(公告)号：US20170117003A1

公开(公告)日：2017-04-27

申请号：US15317747

申请日：2015-03-31

Applicant: D & M HOLDINGS INC.

Inventor： Yasuo Takasu ,  Hiroshi Fukushima

IPC: G10L21/034 ,  H03G3/00 ,  G10L21/02

CPC classification number: G10L21/034 ,  G10L21/0205 ,  H03G1/02 ,  H03G3/002 ,  H03G3/3005 ,  H03G3/32 ,  H03G5/16 ,  H04M1/00 ,  H04M9/08 ,  H04Q9/00 ,  H04R3/00

Abstract: Provided is an audio system in which an audio signal to be heard can be automatically set to an appropriate volume or sound quality. The audio system is provided with: a mobile terminal device provided with a microphone unit that collects surrounding sound waves, and a transmission unit that, on the basis of the sound waves collected by the microphone unit, sets the volume or sound quality of an audio signal to be amplified by an audio device, and transmits the set audio signal volume or sound quality information to the audio device; and an audio device provided with an amplification unit that amplifies the audio signal, a control unit that adjusts the audio signal volume or sound quality by means of the amplifier, and a receiving unit that receives the audio signal volume or sound quality setting information from the mobile terminal device. The control unit controls the amplification unit so as to adjust the audio signal volume or sound quality on the basis of the audio signal volume or sound quality setting information received by the receiving unit.

公开(公告)号：US20170006378A9

公开(公告)日：2017-01-05

申请号：US13790081

申请日：2013-03-08

Applicant: Invensense, Inc.

Inventor： Dongqin Yan ,  Jie Fu ,  Yang Pan

IPC: H04R3/00

CPC classification number: H04R3/005 ,  H03G3/002 ,  H03G3/3005 ,  H04R3/002 ,  H04R29/006 ,  H04R2201/003 ,  H04R2430/01

Abstract: A distributed automatic level control function is provided, in which information relating to a common automatic level control parameter is transmitted to each of a plurality of microphone devices, wherein the information transmitted to at least one microphone device is derived from an audio sample of at least one different microphone device. Each microphone device produces the common automatic level control parameter based on the information received by the microphone device and applies the common automatic level control parameter produced by the microphone device to a distributed automatic level controller of the microphone device.

Abstract translation: 提供了一种分布式自动电平控制功能，其中与公共自动电平控制参数相关的信息被发送到多个麦克风设备中的每一个，其中发送到至少一个麦克风设备的信息是从至少一个音频样本导出的 一个不同的麦克风设备。 每个麦克风设备基于由麦克风设备接收到的信息产生公共自动电平控制参数，并将由麦克风设备产生的公共自动电平控制参数应用于麦克风设备的分布式自动电平控制器。

公开(公告)号：US09532129B2

公开(公告)日：2016-12-27

申请号：US14402088

申请日：2014-09-24

Applicant: 1MORE INC.

Inventor： Kuan-Hong Hsieh ,  Boqing Lin ,  Xiaohong Sun

IPC: H04R1/10 ,  H04R3/00 ,  H04R29/00 ,  G06F1/16 ,  G06F1/30 ,  G06F1/32 ,  H03G3/00 ,  H04R27/00

CPC classification number: H04R1/1041 ,  G06F1/1632 ,  G06F1/305 ,  G06F1/3203 ,  G06F1/325 ,  H03G3/002 ,  H03G3/007 ,  H04R3/00 ,  H04R27/00 ,  H04R29/001 ,  H04R2227/003 ,  H04R2420/07 ,  H04R2460/03

Abstract: An earphone line control device includes a power supply management unit, a filter unit, a control unit, a first resistance, a first diode, a first switch, a second resistance and a second switch. A first end of the power supply management unit, a first end of the filter unit, an end of the first resistance, and an end of the second resistance are all connected to a power supply; the other end of the first resistance is connected to an anode of the first diode, a cathode of the first diode is connected to an end of the first switch, the other end of the second resistance is connected to an end of the second switch, the other end of the first switch and the other end of the second switch are both connected to ground; a first end and a third end of the control unit are respectively connected to the cathode of the first diode and the other end of the second resistance, a second end of the control unit is connected to ground, a fourth end of the control unit is connected to the other end of the filter unit; a second end of the power supply management unit is connected to ground, a third end of the power supply management unit is connected to the control unit. When the first switch or the second switch is turned off, the control unit outputs a preset coded pulse signal.

Abstract translation: 耳机线路控制装置包括电源管理单元，滤波器单元，控制单元，第一电阻，第一二极管，第一开关，第二电阻和第二开关。 电源管理单元的第一端，滤波器单元的第一端，第一电阻的端部和第二电阻的端部都连接到电源; 第一电阻的另一端连接到第一二极管的阳极，第一二极管的阴极连接到第一开关的一端，第二电阻的另一端连接到第二开关的一端， 第一开关的另一端和第二开关的另一端均接地; 控制单元的第一端和第三端分别连接到第一二极管的阴极和第二电阻的另一端，控制单元的第二端连接到地，控制单元的第四端是 连接到过滤器单元的另一端; 电源管理单元的第二端连接到地，电源管理单元的第三端连接到控制单元。 当第一开关或第二开关断开时，控制单元输出预设的编码脉冲信号。

公开(公告)号：US09449082B2

公开(公告)日：2016-09-20

申请号：US14224009

申请日：2014-03-24

Applicant: Colin Leonard

Inventor： Colin Leonard

IPC: G06F17/30 ,  G10H7/06 ,  G11B27/031 ,  H04R3/04 ,  G10H7/04 ,  G10L21/04

CPC classification number: G11B27/005 ,  G06F3/162 ,  G06F17/3074 ,  G10L21/04 ,  G10L21/043 ,  G11B20/10018 ,  G11B27/031 ,  H03G3/002 ,  H03G5/02 ,  H04R3/04 ,  H04R2430/01

Abstract: Systems and methods presented herein may provide for processing audio with increased loudness and dynamics. A first clock frequency associated with a digital audio file may be increased to a second clock frequency, which speeds up the playback of the audio. The digital audio file may then be converted to analog at the higher second frequency, where it is further modified in the analog domain. The analog audio is then converted back into digital audio at the second clock frequency. The clock frequency is then decreased back to the first clock frequency for playback or storage of the processed (i.e., modified or manipulated) digital audio file. Alternatively, the entire process can take place in the digital domain.

Abstract translation: 本文提出的系统和方法可以提供用于处理具有增加的响度和动力学的音频。 与数字音频文件相关联的第一时钟频率可以增加到第二时钟频率，这加速了音频的重放。 数字音频文件然后可以在较高的第二频率被转换为模拟，在模拟域中进一步修改数字音频文件。 然后，模拟音频以第二个时钟频率转换回数字音频。 时钟频率然后减小到第一时钟频率，用于播放或存储经处理（即修改或操纵的）数字音频文件。 或者，整个过程可以在数字域中进行。