公开(公告)号：US10063208B2

公开(公告)日：2018-08-28

申请号：US15551244

申请日：2015-11-16

申请人： Goertek.Inc

发明人： Dan Han ,  Yun Yang

IPC分类号： H03G11/04 ,  H04R3/00 ,  H04R9/06 ,  H04R29/00

CPC分类号： H03G11/04 ,  H04R3/00 ,  H04R3/08 ,  H04R9/041 ,  H04R9/06 ,  H04R29/001 ,  H04R29/003 ,  H04R2499/11

摘要： The present invention discloses a speaker device and electronic equipment. The speaker device comprises a speaker body, an audio signal input terminal connected with the speaker body, and a DC voltage signal input terminal connected with the speaker body. The electronic equipment comprises the speaker device and a DC voltage signal output circuit. The present invention further discloses a method for reducing a low frequency distortion degree of the speaker of the electronic equipment, and the method is realized by additionally providing a DC voltage signal to the input end of the speaker. In the present invention, a distortion degree of the speaker device at a low-frequency working condition can be reduced, and inconsistency of low frequency distortion of the speaker device, caused by mass production, can be reduced.

公开(公告)号：US20160268990A1

公开(公告)日：2016-09-15

申请号：US15158648

申请日：2016-05-19

申请人： TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED

发明人： Yongxin WANG ,  Bin LI ,  Cheng LUO

IPC分类号： H03G11/04 ,  G06F3/06 ,  G06F3/16 ,  H03M1/12 ,  G10L25/21 ,  H04R3/00

CPC分类号： H03G11/04 ,  G06F3/0604 ,  G06F3/0656 ,  G06F3/0673 ,  G06F3/162 ,  G10L21/0208 ,  G10L25/21 ,  H03M1/12 ,  H04R3/00

摘要： A method and apparatus for processing a recording is described. Analogue audio data is recorded and converted into digital audio data. The digital audio data is cached to a preset buffer. The digital audio data is called back from the buffer and is filtered according to a preset peak power threshold and an average power gradient threshold to obtain filtered audio data.

摘要翻译： 描述用于处理记录的方法和装置。 模拟音频数据被记录并转换为数字音频数据。 数字音频数据被缓存到预置缓冲器。 从缓冲器回叫数字音频数据，并根据预设的峰值功率阈值和平均功率梯度阈值进行滤波，以获得滤波后的音频数据。

公开(公告)号：US20160173050A9

公开(公告)日：2016-06-16

申请号：US14214437

申请日：2014-03-14

申请人： DockOn AG

发明人： Forrest Brown ,  Patrick Rada ,  Alexandre Dupuy

IPC分类号： H03G11/04 ,  H03D1/08

CPC分类号： H01P5/19 ,  H01Q7/00 ,  H01Q21/0075 ,  H03D1/08 ,  H03D1/18 ,  H03D7/02 ,  H03D7/12 ,  H03D7/165 ,  H03D7/166 ,  H03D11/04 ,  H03D11/08 ,  H03D2200/0043 ,  H03D2200/0098 ,  H03F1/08 ,  H03F3/04 ,  H03F3/191 ,  H03F2200/165 ,  H03F2200/294 ,  H03G11/04

摘要： A logarithmic amplifier (LDA) is described that includes an amplifier configured to oscillate a modulated input signal, a feedback establishing a 180 degree phase shift between the amplifier input and the output and maintaining oscillation of the input signal, a parallel resonant circuit connected to the amplifier output causing the amplifier to resonate at or around a center frequency, and a controller connected to the amplifier input cyclically terminating oscillation of the input signal each time a pre-determined threshold of current is detected, the controller including a low pass filter configured to generate a second output signal having a repetition frequency. The LDA may be used for AM with or without a PLL and/or a superhetrodyne. The LDA may be implemented as a mixer and used for phase demodulation. The LDA may be used for phase demodulation. The LDA may be used in place of a low noise amplifier.

摘要翻译： 描述了对数放大器（LDA），其包括被配置为振荡调制输入信号的放大器，在放大器输入和输出之间建立180度相移并保持输入信号的振荡的反馈，并联谐振电路 放大器输出使得放大器在中心频率处或周围谐振，以及连接到放大器输入端的控制器，每当检测到电流的预定阈值时循环地终止输入信号的振荡，则控制器包括低通滤波器， 产生具有重复频率的第二输出信号。 LDA可用于具有或不具有PLL和/或超临界的AM。 LDA可以实现为混频器并用于相位解调。 LDA可用于相位解调。 可以使用LDA代替低噪声放大器。

公开(公告)号：US20140306770A1

公开(公告)日：2014-10-16

申请号：US14356622

申请日：2011-11-22

申请人： Udo-Michael Vetter

发明人： Udo-Michael Vetter

IPC分类号： H03F1/02

CPC分类号： H03G11/08 ,  H03F1/0222 ,  H03F1/0227 ,  H03F1/0244 ,  H03F1/025 ,  H03F2200/105 ,  H03F2200/465 ,  H03G11/04

摘要： A signal-processing system has an amplifier that generates an amplified (RF) output signal based on an (RF) input signal. The amplifier receives a supply voltage that can be selectively set to an appropriate level between a lower power supply level and a higher power supply level. With one power supply permanently connected to the supply voltage node, a control unit executes software to toggle a supply switch to periodically connect and disconnect the other power supply thereby generating a weighted average value for the supply voltage between the two power supply levels. When a sudden and large increase occurs in the (input) power level, hardware-interrupt circuitry interrupts and supersedes the software-based control of the supply-voltage switch to quickly switch the supply voltage towards the higher power supply level. The hardware-interrupt circuitry handles such situations faster than the software-based control in order to prevent a limit violation of spectrum emission requirements.

摘要翻译： 信号处理系统具有基于（RF）输入信号产生放大（RF）输出信号的放大器。 放大器接收可以在较低电源电平和较高电源电平之间选择性地设置为适当电平的电源电压。 一个电源永久地连接到电源电压节点，控制单元执行软件来切换电源开关以周期性地连接和断开另一个电源，从而产生两个电源电平之间的电源电压的加权平均值。 当（输入）功率电平发生突然和大的增加时，硬件中断电路中断并取代电源电压开关的基于软件的控制，以便将电源电压快速切换到更高的电源电平。 硬件中断电路比基于软件的控制更快地处理这种情况，以防止对频谱发射要求的限制。

公开(公告)号：US20140105414A1

公开(公告)日：2014-04-17

申请号：US13651916

申请日：2012-10-15

申请人： DIRECT SOUND HEADPHONES, LLC

发明人： Brian Anthony Rois ,  Stephen John Rois ,  Johnny Joseph Gresko

IPC分类号： H03G3/20 ,  H04R1/10

CPC分类号： H04R1/1091 ,  H03G11/04 ,  H04R1/1008 ,  H04R3/007 ,  H04R2430/01

摘要： Exemplary embodiments or implementations are disclosed of methods, apparatus, and systems for a volume limiter circuit. A rectifier sub-circuit is configured to rectify at least a portion of an audio signal received from an audio source. A junction field effect transistor (JFET) has a channel connected in series between the audio source and a speaker. A feedback sub-circuit is configured to provide a gate signal at a gate of the JFET and to modulate a control signal in accordance with the audio signal crossing the JFET channel. The feedback sub-circuit is connected with the rectifier sub-circuit so as to extend a range of variable resistance of the JFET channel. The limiter circuit provides functionality that changes in response to varying audio voltages.

摘要翻译： 公开了用于体积限制器电路的方法，装置和系统的示例性实施例。 整流器子电路被配置为对从音频源接收的音频信号的至少一部分进行整流。 结型场效应晶体管（JFET）具有串联连接在音频源和扬声器之间的通道。 反馈子电路被配置为在JFET的栅极处提供栅极信号，并且根据穿过JFET通道的音频信号来调制控制信号。 反馈子电路与整流器子电路连接，以扩展JFET通道的可变电阻范围。 限幅器电路提供响应于不同音频电压而改变的功能。

公开(公告)号：US20140028370A1

公开(公告)日：2014-01-30

申请号：US13742506

申请日：2013-01-16

申请人： Nujira Limited

发明人： Gerard Wimpenny

IPC分类号： H03G11/04

CPC分类号： H03G11/04 ,  H03F1/0222 ,  H03F1/0227 ,  H03F3/189 ,  H03F2200/102

摘要： There is disclosed a method of controlling an input to an envelope modulated power supply of an envelope tracking amplification stage, comprising: generating an envelope signal representing the envelope of a signal to be amplified; applying a shaping function to the envelope signal to generate a shaped envelope signal, including: clipping the shaped envelope signal at high input envelope values; and providing the shaped envelope signal as an input signal to the envelope modulated power supply.

摘要翻译： 公开了一种控制包络跟踪放大级的包络调制电源的输入的方法，包括：产生表示待放大信号的包络线的包络信号; 对包络信号施加整形函数以产生成形包络信号，包括：以高输入包络值来限幅成形的包络信号; 并将成形的包络信号作为输入信号提供给信封调制电源。

公开(公告)号：US20120281325A1

公开(公告)日：2012-11-08

申请号：US13514632

申请日：2010-11-25

申请人： Rolf Reber ,  Patrick Schuh

发明人： Rolf Reber ,  Patrick Schuh

IPC分类号： H02H9/02

CPC分类号： H03G11/04 ,  H03F1/523 ,  H03F2200/211 ,  H03F2200/441 ,  H03F2200/66

摘要： A limiting circuit has a signal input and a signal output for limiting an output signal that is present at the signal output and that can be fed to a further circuit connected to the output of the limiting circuit. A voltage connection for feeding a bias voltage and a transistor are present, wherein the gate connection of the transistor is connected to the voltage connection by means of a first matching circuit and to the signal input by means of a second matching circuit.

摘要翻译： 限制电路具有信号输入和信号输出，用于限制存在于信号输出端的输出信号，并且可以馈送到连接到限制电路的输出端的另一个电路。 存在用于馈送偏置电压和晶体管的电压连接，其中晶体管的栅极连接通过第一匹配电路连接到电压连接，并通过第二匹配电路连接到信号输入。

公开(公告)号：US08223994B2

公开(公告)日：2012-07-17

申请号：US12373180

申请日：2007-06-07

申请人： Roger Kihlberg

发明人： Roger Kihlberg

IPC分类号： H03G3/00

CPC分类号： H03G3/3015 ,  H03G7/06 ,  H03G11/04 ,  H04R5/033 ,  H04R5/04

摘要： A method of limiting the maximum permitted sound volume in an earphone, a headset or the like, includes the step that the size of the driving signal for driving the earphone is sensed. The driving signal has a voltage that is less than approx. 0.7 V. If the driving signal exceeds a certain level, one part of the driving signal is shunted past the earphone and another part of the driving signal is diverted. Either the voltage of the diverted part is increased and controls the shunt device by which the first part of the driving signal is shunted past the earphone, or it is supplied to a unit with a detector device and the shunt device. The unit is sensitive to work at voltages below approx. 0.7 V. An earphone or the like for the above-mentioned method comprises a shunt device and a detector device whose current source is the signal source of the earphone.

摘要翻译： 限制耳机，耳机等的最大允许音量的方法包括感测用于驱动耳机的驱动信号的大小的步骤。 驱动信号的电压小于约 如果驱动信号超过一定水平，则驱动信号的一部分被分流通过耳机，另一部分驱动信号被转向。 转向部分的电压是否增加，并且控制驱动信号的第一部分通过耳机分流的分流装置，或者被提供给具有检测器装置和分流装置的单元。 该单元对低于约的电压敏感。 用于上述方法的耳机等包括分流装置和检测器装置，其电流源是耳机的信号源。

公开(公告)号：US07912505B2

公开(公告)日：2011-03-22

申请号：US11653015

申请日：2007-01-12

申请人： Fatih M. Ozluturk ,  Brian Kierman

发明人： Fatih M. Ozluturk ,  Brian Kierman

IPC分类号： H04M1/00

CPC分类号： H04W52/343 ,  H03G11/04 ,  H04B1/707 ,  H04B2201/70706 ,  H04W52/143 ,  H04W52/225 ,  H04W52/346 ,  H04W52/367 ,  H04W88/08

摘要： A base station employing a CDMA technique comprising the steps of combining a plurality of spread spectrum data signals into a combined signal having a fluctuating power level corresponding to the data signals; modulating the combined signal to produce an RF signal; measuring average power of the combined signal over a selected time period; adaptively limiting the combined signal power to a calculated level based at least in part on the measured power; and transmitting the RF signal.

摘要翻译： 一种使用CDMA技术的基站，包括以下步骤：将多个扩展频谱数据信号组合成具有与数据信号对应的波动功率电平的组合信号; 调制组合信号以产生RF信号; 在所选择的时间段内测量组合信号的平均功率; 至少部分地基于测量的功率将组合的信号功率自适应地限制到计算的电平; 并发送RF信号。

公开(公告)号：US06904292B2

公开(公告)日：2005-06-07

申请号：US10090496

申请日：2002-03-04

申请人： Faith M. Ozluturk ,  Brian Kiernan

发明人： Faith M. Ozluturk ,  Brian Kiernan

IPC分类号： H03G3/20 ,  H03G11/04 ,  H04B1/04 ,  H04B1/707 ,  H04B7/005 ,  H04B7/216 ,  H04W52/22 ,  H04W52/34 ,  H04B7/00 ,  H04Q7/20

CPC分类号： H04W52/343 ,  H03G11/04 ,  H04B1/707 ,  H04B2201/70706 ,  H04W52/143 ,  H04W52/225 ,  H04W52/346 ,  H04W52/367 ,  H04W88/08

摘要： A base station for transmitting signals employing a CDMA technique where a plurality of spread spectrum data signals are combined. A characteristic of the output of the combining for a given time period is measured. An output of the combining is adaptively linked responsive, at least partially, to an output of the measuring.

摘要翻译： 一种用于发送采用CDMA技术的信号的基站，其中多个扩频数据信号被组合。 测量给定时间段内的组合输出的特性。 组合的输出至少部分地响应于测量的输出而自适应地连接。