公开(公告)号：US08423804B2

公开(公告)日：2013-04-16

申请号：US13104075

申请日：2011-05-10

Applicant: Po-Yu Li ,  Kuan-Chi Juan

Inventor： Po-Yu Li ,  Kuan-Chi Juan

IPC: G06F1/00 ,  G06F1/26 ,  G06F1/32

CPC classification number: G06F1/26 ,  G06F1/28 ,  G06F1/3206 ,  G06F1/324 ,  G06F1/3265 ,  Y02D10/126 ,  Y02D10/153

Abstract: A method for adjusting a system performance of a portable electronic device is disclosed. The portable electronic device is connected to a power adapter for obtaining external power supply. The method comprises the steps of: receiving a voltage signal outputted from the power adapter; determining whether to execute an over current protection by the power adapter; calculating a recovering time of the voltage signal if the over current protection is executed by the power adapter, wherein the recovering time is a time period from stopping an output of the voltage signal to restarting the output thereof; and determining an output power of the power adapter to adjust the system performance of the portable electronic device according to the recovering time.

Abstract translation: 公开了一种用于调整便携式电子设备的系统性能的方法。 便携式电子设备连接到用于获得外部电源的电源适配器。 该方法包括以下步骤：接收从电源适配器输出的电压信号; 确定是否由电源适配器执行过电流保护; 如果由电源适配器执行过电流保护，则计算电压信号的恢复时间，其中恢复时间是从停止电压信号的输出到重新启动其输出的时间段; 以及根据恢复时间确定电力适配器的输出功率以调整便携式电子设备的系统性能。

公开(公告)号：US20090252340A1

公开(公告)日：2009-10-08

申请号：US12314128

申请日：2008-12-04

Applicant: Neng-Wen Yeh ,  Po-Yu Li ,  Ruey-Ching Shyu ,  Lai-Shi Huang

Inventor： Neng-Wen Yeh ,  Po-Yu Li ,  Ruey-Ching Shyu ,  Lai-Shi Huang

IPC: H04R5/00

CPC classification number: H04R5/02

Abstract: A system, and an apparatus of speaker, and a method for forming a virtual audio is provided. An audio source is processed by a second audio source processing program according to parameters which are entered by the user, and filtered to be a high frequency audio signal. The audio source with orientation is outputted by the orientation speaker.

Abstract translation: 提供一种系统和扬声器装置以及用于形成虚拟音频的方法。 音频源由第二音频源处理程序根据用户输入的参数进行处理，并被过滤为高频音频信号。 定向扬声器输出方向音源。

公开(公告)号：US07816982B2

公开(公告)日：2010-10-19

申请号：US12334549

申请日：2008-12-15

Applicant: Kuo-Hung Wu ,  Po-Yu Li

Inventor： Kuo-Hung Wu ,  Po-Yu Li

IPC: H03F3/38

CPC classification number: H03F3/2173 ,  H03K7/08

Abstract: The invention provides a switching audio power amplifier with de-noise function, including a first comparator, a second comparator, a logic control unit, a de-noise circuit, and a bridge circuit. The first comparator and the second comparator respectively generate the first PWM signal and the second PWM signal, and then the logic control unit performs logic operation to generate a third PWM signal and a fourth PWM signal. If the pulse width of the third PWM signal (or the fourth PWM signal) is lower than a threshold, the de-noise circuit increases the pulse width of the third PWM signal or the fourth PWM signal and outputs the fifth PWM signal and the sixth PWM signal to drive the bridge circuit. Next, the bridge circuit conducts a driving current alternately flowing to and from a load according to the firth PWM signal and the sixth PWM signal.

Abstract translation: 本发明提供一种具有去噪功能的开关音频功率放大器，包括第一比较器，第二比较器，逻辑控制单元，去噪电路和桥接电路。 第一比较器和第二比较器分别产生第一PWM信号和第二PWM信号，然后逻辑控制单元执行逻辑运算以产生第三PWM信号和第四PWM信号。 如果第三PWM信号（或第四PWM信号）的脉冲宽度低于阈值，则去噪电路增加第三PWM信号或第四PWM信号的脉冲宽度，并输出第五PWM信号和第六PWM信号 PWM信号驱动桥接电路。 接下来，桥接电路根据firth PWM信号和第六PWM信号传导交替地流过负载的驱动电流。

公开(公告)号：US20100117739A1

公开(公告)日：2010-05-13

申请号：US12690380

申请日：2010-01-20

Applicant: Po-Yu Li ,  Kuan-Jen Tseng

Inventor： Po-Yu Li ,  Kuan-Jen Tseng

IPC: H03F3/16

CPC classification number: H03F3/2173

Abstract: An audio power amplifier includes a pre-amplifier, an error amplifier, a comparator, a bridge circuit, and a feedback circuit, in which the gain of the pre-amplifier gradually increases when the audio power amplifier is powered on. The comparator generates a PWM signal by comparing a reference signal and an amplified audio signal. The bridge circuit has switches controlled according to the PWM signal such that a driving current alternately flows to and from a load. The feedback circuit generates the feedback signal indicating a condition of the load.

Abstract translation: 音频功率放大器包括前置放大器，误差放大器，比较器，桥接电路和反馈电路，其中当音频功率放大器通电时，前置放大器的增益逐渐增加。 比较器通过比较参考信号和放大的音频信号来产生PWM信号。 桥式电路具有根据PWM信号控制的开关，使得驱动电流交替地流过负载。 反馈电路产生指示负载条件的反馈信号。

公开(公告)号：US07629842B2

公开(公告)日：2009-12-08

申请号：US12049578

申请日：2008-03-17

Applicant: Kuan-Jen Tseng ,  Po-Yu Li

Inventor： Kuan-Jen Tseng ,  Po-Yu Li

IPC: H03F3/38

CPC classification number: H03F3/2173 ,  H03F1/305 ,  H03F2200/03 ,  H03F2200/351

Abstract: A class D audio amplifier includes an error amplifier, a comparator, a bridge circuit, a feedback circuit and a silent start circuit. The error amplifier generates an error signal by amplifying a difference between a feedback signal and an audio input signal. The comparator generates a first pulse width modulation (PWM) signal by comparing a first triangular-wave signal and the error signal. The bridge circuit has switches alternately conducting a current flowing into and from a load. The feedback circuit generates the feedback signal indicating a condition of the load. The silent start circuit performs AND operation of the first PWM signal and a second PWM signal having a gradually increased duty ratio to generate a third PWM signal for control of the switches of the bridge circuit.

Abstract translation: D类音频放大器包括误差放大器，比较器，桥接电路，反馈电路和静音启动电路。 误差放大器通过放大反馈信号和音频输入信号之间的差异来产生误差信号。 比较器通过比较第一三角波信号和误差信号来产生第一脉宽调制（PWM）信号。 桥式电路具有交替地导通流入和流出负载的电流的开关。 反馈电路产生指示负载条件的反馈信号。 无声启动电路执行第一PWM信号的AND运算和具有逐渐增加的占空比的第二PWM信号，以产生用于控制桥式电路的开关的第三PWM信号。

公开(公告)号：US20090231030A1

公开(公告)日：2009-09-17

申请号：US12049567

申请日：2008-03-17

Applicant: Po-Yu Li ,  Kuan-Jen Tseng

Inventor： Po-Yu Li ,  Kuan-Jen Tseng

IPC: H03F3/38

CPC classification number: H03F3/2173

Abstract: An audio power amplifier includes a pre-amplifier, an error amplifier, a comparator, a bridge circuit, and a feedback circuit, in which the gain of the pre-amplifier gradually increases when the audio power amplifier is powered on. The comparator generates a PWM signal by comparing a reference signal and an amplified audio signal. The bridge circuit has switches controlled according to the PWM signal such that a driving current alternately flows to and from a load. The feedback circuit generates the feedback signal indicating a condition of the load.

Abstract translation: 音频功率放大器包括前置放大器，误差放大器，比较器，桥接电路和反馈电路，其中当音频功率放大器通电时，前置放大器的增益逐渐增加。 比较器通过比较参考信号和放大的音频信号来产生PWM信号。 桥式电路具有根据PWM信号控制的开关，使得驱动电流交替地流过负载。 反馈电路产生指示负载条件的反馈信号。

公开(公告)号：US07973598B2

公开(公告)日：2011-07-05

申请号：US12690380

申请日：2010-01-20

Applicant: Po-Yu Li ,  Kuan-Jen Tseng

Inventor： Po-Yu Li ,  Kuan-Jen Tseng

IPC: H03F1/36

CPC classification number: H03F3/2173

Abstract: An audio power amplifier includes a pre-amplifier, an error amplifier, a comparator, a bridge circuit, and a feedback circuit, in which the gain of the pre-amplifier gradually increases when the audio power amplifier is powered on. The comparator generates a PWM signal by comparing a reference signal and an amplified audio signal. The bridge circuit has switches controlled according to the PWM signal such that a driving current alternately flows to and from a load. The feedback circuit generates the feedback signal indicating a condition of the load.

Abstract translation: 音频功率放大器包括前置放大器，误差放大器，比较器，桥接电路和反馈电路，其中当音频功率放大器通电时，前置放大器的增益逐渐增加。 比较器通过比较参考信号和放大的音频信号来产生PWM信号。 桥式电路具有根据PWM信号控制的开关，使得驱动电流交替地流过负载。 反馈电路产生指示负载条件的反馈信号。

公开(公告)号：US20090285403A1

公开(公告)日：2009-11-19

申请号：US12272864

申请日：2008-11-18

Applicant: Neng-Wen Yeh ,  Yung-Sen Lin ,  Kuan-Chi Juan ,  Po-Yu Li

Inventor： Neng-Wen Yeh ,  Yung-Sen Lin ,  Kuan-Chi Juan ,  Po-Yu Li

IPC: H04R5/00

CPC classification number: H04R3/14 ,  H04R3/12

Abstract: The present invention discloses an audio signal processing device capable of transmitting at least one audio signal generated by an audio decoder to at least one first speaker and a second speaker. The audio signal processing device includes a signal mixer and at least one filter. By the at least one filter, a first signal having a frequency larger than a first specific frequency in each audio signal is transmitted to at least one first speaker, and a second signal having a frequency smaller than the first specific frequency in each audio signal is transmitted to the signal mixer and then transmitted to the second speaker.

Abstract translation: 本发明公开了一种音频信号处理装置，其能够将由音频解码器生成的至少一个音频信号发送到至少一个第一扬声器和第二扬声器。 音频信号处理装置包括信号混合器和至少一个滤波器。 通过至少一个滤波器，将具有大于每个音频信号中的第一特定频率的频率的第一信号发送到至少一个第一扬声器，并且具有小于每个音频信号中的第一特定频率的频率的第二信号是 发送到信号混频器，然后发送到第二扬声器。

公开(公告)号：US07709963B2

公开(公告)日：2010-05-04

申请号：US11865647

申请日：2007-10-01

Applicant: Kuo-Hung Wu ,  Po-Yu Li

Inventor： Kuo-Hung Wu ,  Po-Yu Li

IPC: H01L23/12

CPC classification number: H01L24/06 ,  H01L23/4952 ,  H01L24/48 ,  H01L24/49 ,  H01L2223/6611 ,  H01L2224/05553 ,  H01L2224/05554 ,  H01L2224/05599 ,  H01L2224/0603 ,  H01L2224/48247 ,  H01L2224/49111 ,  H01L2224/49113 ,  H01L2224/49171 ,  H01L2224/49175 ,  H01L2224/85399 ,  H01L2924/00014 ,  H01L2924/01033 ,  H01L2924/01082 ,  H01L2924/10161 ,  H01L2224/45099 ,  H01L2924/00 ,  H01L2924/00012

Abstract: An audio power amplifier package includes a non-signal lead, a first non-signal pad, a second non-signal pad and a plurality of bonding wires. The first non-signal pad and the second non-signal pad are disposed on a substrate. The bonding wires connect the non-signal lead to the first non-signal pad and the second non-signal pad respectively.

Abstract translation: 音频功率放大器封装包括非信号引线，第一非信号焊盘，第二非信号焊盘和多个接合线。 第一非信号焊盘和第二非信号焊盘设置在基板上。 接合线分别将非信号引线连接到第一非信号焊盘和第二非信号焊盘。

公开(公告)号：US20090231035A1

公开(公告)日：2009-09-17

申请号：US12049578

申请日：2008-03-17

Applicant: Kuan-Jen Tseng ,  Po-Yu LI

Inventor： Kuan-Jen Tseng ,  Po-Yu LI

IPC: H03F3/217 ,  H03F3/38

CPC classification number: H03F3/2173 ,  H03F1/305 ,  H03F2200/03 ,  H03F2200/351

Abstract: A class D audio amplifier includes an error amplifier, a comparator, a bridge circuit, a feedback circuit and a silent start circuit. The error amplifier generates an error signal by amplifying a difference between a feedback signal and an audio input signal. The comparator generates a first pulse width modulation (PWM) signal by comparing a first triangular-wave signal and the error signal. The bridge circuit has switches alternately conducting a current flowing into and from a load. The feedback circuit generates the feedback signal indicating a condition of the load. The silent start circuit performs AND operation of the first PWM signal and a second PWM signal having a gradually increased duty ratio to generate a third PWM signal for control of the switches of the bridge circuit.

Abstract translation: D类音频放大器包括误差放大器，比较器，桥接电路，反馈电路和静音启动电路。 误差放大器通过放大反馈信号和音频输入信号之间的差异来产生误差信号。 比较器通过比较第一三角波信号和误差信号来产生第一脉宽调制（PWM）信号。 桥式电路具有交替地导通流入和流出负载的电流的开关。 反馈电路产生指示负载条件的反馈信号。 无声启动电路执行第一PWM信号的AND运算和具有逐渐增加的占空比的第二PWM信号，以产生用于控制桥式电路的开关的第三PWM信号。