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25 条记录 (耗时 0.018 秒)

    Multi-Voltage headphone drive circuit
    1.
    发明申请
    Multi-Voltage headphone drive circuit 失效
    多电压耳机驱动电路

    公开(公告)号：US20090279713A1

    公开(公告)日：2009-11-12

    申请号：US12460539

    申请日：2009-07-21

    申请人： Jwin-Yen Guo ,  Ching-Hsiang Yang

    发明人： Jwin-Yen Guo ,  Ching-Hsiang Yang

    IPC分类号： H04R1/10

    CPC分类号： H03F3/187 ,  H03F1/0211 ,  H03F3/45475 ,  H03F3/68 ,  H03F2200/516 ,  H04R2460/03

    摘要： The present invention discloses a multi-voltage headphone driver circuit comprising: at least one operational amplifier having an output supplied to a headphone speaker, the operational amplifier receiving a first power supply as its high operation voltage; a charge pump receiving a second power supply to generate a negative voltage corresponding to the second power supply in magnitude; and an m-fold circuit multiplying the negative voltage by m and providing the result to the operational amplifier as a low operation voltage thereof, wherein m is a real number.

    摘要翻译： 本发明公开了一种多电压耳机驱动电路，包括：至少一个运算放大器，具有提供给耳机扬声器的输出，运算放大器接收第一电源作为其高操作电压; 电荷泵接收第二电源以产生与第二电源相对应的负电压; 以及将负电压乘以m并将结果作为其操作电压的运算放大器的m倍电路，其中m是实数。

    Multi-voltage headphone drive circuit
    2.
    发明授权
    Multi-voltage headphone drive circuit 失效
    多电压耳机驱动电路

    公开(公告)号：US08159294B2

    公开(公告)日：2012-04-17

    申请号：US12460539

    申请日：2009-07-21

    申请人： Jwin-Yen Guo ,  Ching-Hsiang Yang

    发明人： Jwin-Yen Guo ,  Ching-Hsiang Yang

    IPC分类号： H03G3/00

    CPC分类号： H03F3/187 ,  H03F1/0211 ,  H03F3/45475 ,  H03F3/68 ,  H03F2200/516 ,  H04R2460/03

    摘要： The present invention discloses a multi-voltage headphone driver circuit comprising: at least one operational amplifier having an output supplied to a headphone speaker, the operational amplifier receiving a first power supply as its high operation voltage; a charge pump receiving a second power supply to generate a negative voltage corresponding to the second power supply in magnitude; and an m-fold circuit multiplying the negative voltage by m and providing the result to the operational amplifier as a low operation voltage thereof, wherein m is a real number.

    摘要翻译： 本发明公开了一种多电压耳机驱动电路，包括：至少一个运算放大器，具有提供给耳机扬声器的输出，运算放大器接收第一电源作为其高操作电压; 电荷泵接收第二电源以产生与第二电源相对应的负电压; 以及将负电压乘以m并将结果作为其操作电压的运算放大器的m倍电路，其中m是实数。

    Speaker driver circuit driven by positive and negative voltages
    3.
    发明授权
    Speaker driver circuit driven by positive and negative voltages 有权
    扬声器驱动电路由正负电压驱动

    公开(公告)号：US08411879B2

    公开(公告)日：2013-04-02

    申请号：US12507060

    申请日：2009-07-21

    申请人： Jwin-Yen Guo ,  Ching-Hsiang Yang

    发明人： Jwin-Yen Guo ,  Ching-Hsiang Yang

    IPC分类号： H03F99/00 ,  H03F3/04 ,  H04R1/10

    CPC分类号： H03F3/187 ,  H03F1/0211 ,  H03F3/45475 ,  H03F2203/45136 ,  H03F2203/45166 ,  H04R2460/03

    摘要： A speaker driver circuit driven by positive and negative voltages, comprising: at least one operational amplifier providing an output to a headphone speaker, and a voltage converter receiving a supplied voltage (VDD), generating r-fold positive and negative voltages (r·VDD and −r·VDD, wherein r is any positive real number except 1) according to the supplied voltage, and supplying the positive and negative voltages to the operational amplifier for its high and low operation voltage levels respectively.

    摘要翻译： 由正负电压驱动的扬声器驱动电路，包括：至少一个运算放大器，为耳机扬声器提供输出;以及电压转换器，接收所提供的电压（VDD），产生r倍的正负电压（r·VDD 和-r·VDD，其中r是除了1）根据所提供的电压之外的任何正实数，并且将正和负电压分别提供给运算放大器用于其高和低操作电压电平。

    Speaker Driver Circuit Driven By Postive and Negative Voltages
    4.
    发明申请
    Speaker Driver Circuit Driven By Postive and Negative Voltages 有权
    扬声器驱动电路由负和负电压驱动

    公开(公告)号：US20090285416A1

    公开(公告)日：2009-11-19

    申请号：US12507060

    申请日：2009-07-21

    申请人： Jwin-Yen Guo ,  Ching-Hsiang Yang

    发明人： Jwin-Yen Guo ,  Ching-Hsiang Yang

    IPC分类号： H03F99/00

    CPC分类号： H03F3/187 ,  H03F1/0211 ,  H03F3/45475 ,  H03F2203/45136 ,  H03F2203/45166 ,  H04R2460/03

    摘要： A speaker driver circuit driven by positive and negative voltages, comprising: at least one operational amplifier providing an output to a headphone speaker, and a voltage converter receiving a supplied voltage (VDD), generating r-fold positive and negative voltages (r·VDD and −r·VDD, wherein r is any positive real number except 1) according to the supplied voltage, and supplying the positive and negative voltages to the operational amplifier for its high and low operation voltage levels respectively.

    摘要翻译： 由正和负电压驱动的扬声器驱动电路，包括：向耳机扬声器提供输出的至少一个运算放大器和接收所提供的电压（VDD）的电压转换器，产生r倍的正负电压（r.VDD 和-r.VDD，其中r是除了1）根据所提供的电压之外的任何正实数，并且将正和负电压分别提供给运算放大器用于其高和低操作电压电平。

    Arrangement and method for an integrated protection for a power system
    6.
    发明授权
    Arrangement and method for an integrated protection for a power system 有权
    电力系统综合保护的安排和方法

    公开(公告)号：US07907377B2

    公开(公告)日：2011-03-15

    申请号：US12318721

    申请日：2009-01-07

    申请人： Cheng-Hsuan Fan ,  Chao-Hsuan Chuang ,  Hung-Che Chou ,  Ching-Hsiang Yang ,  Chih-Ping Tan

    发明人： Cheng-Hsuan Fan ,  Chao-Hsuan Chuang ,  Hung-Che Chou ,  Ching-Hsiang Yang ,  Chih-Ping Tan

    IPC分类号： H02H3/00 ,  H02H3/24

    CPC分类号： H02H5/041 ,  H02H3/087 ,  H02H3/202

    摘要： For protecting a power system, two or three of over current, thermal and under voltage protection circuits are integrated as one protection circuit but operate independently, and one or more protection points thereof are adjusted dynamically in response to detected condition of the power system. Specifically, using voltage and current conditions in the power system to modify the over current protection and the thermal protection maximizes the performance of the power system and covers the process bias in the circuits.

    摘要翻译： 为了保护电力系统，两个或三个过流，过热和欠压保护电路被集成为一个保护电路，但是独立操作，并且响应于电力系统的检测到的状态来动态地调整其一个或多个保护点。 具体来说，使用电力系统中的电压和电流条件修改过电流保护和热保护，最大限度地提高电力系统的性能，并覆盖电路中的过程偏置。

    Device and method for automatically detecting and announcing error on booting a motherboard
    10.
    发明授权
    Device and method for automatically detecting and announcing error on booting a motherboard 有权
    在启动主板时自动检测和通知错误的设备和方法

    公开(公告)号：US07200746B2

    公开(公告)日：2007-04-03

    申请号：US10957645

    申请日：2004-10-05

    申请人： Ching-Hsiang Yang ,  Hung-Ta Hsu ,  Yu-Cheng Liao

    发明人： Ching-Hsiang Yang ,  Hung-Ta Hsu ,  Yu-Cheng Liao

    IPC分类号： G06F15/177

    CPC分类号： G06F11/0772 ,  G06F11/0757

    摘要： A device for automatic error detection on booting a motherboard includes a storage device, and an automatic error detection speech unit. The storage device stores BIOS program code and a system status table for the motherboard, the BIOS program code being executed by a processor when the motherboard is booting, the system status table of the motherboard storing at least one motherboard element status, the motherboard status being updated by the processor when the motherboard is turned on in accordance with current conditions of the booting. The automatic error detection speech unit couples to the storage device for reading the system status table of the motherboard after a predetermined time period of the motherboard being turned on, and playing corresponding speech data in accordance with the motherboard status of the system status table for the motherboard.

    摘要翻译： 用于启动主板的自动错误检测装置包括存储装置和自动错误检测语音单元。 所述存储装置存储所述主板的BIOS程序代码和系统状态表，所述BIOS程序代码由所述主板正在启动时由处理器执行，所述主板的系统状态表存储至少一个主板单元状态，所述主板状态为 当主板根据引导的当前条件打开时由处理器更新。 自动错误检测语音单元耦合到存储设备，用于在母板开启的预定时间段之后读取主板的系统状态表，并且根据主板状态表的主板状态播放对应的语音数据， 母板。