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7 条记录 (耗时 0.018 秒)

    Voltage regulator with fast and slow switching control
    2.
    发明授权
    Voltage regulator with fast and slow switching control 有权
    电压调节器具有快速和慢速的开关控制

    公开(公告)号：US09166475B2

    公开(公告)日：2015-10-20

    申请号：US13623969

    申请日：2012-09-21

    申请人： MStar Semiconductor, Inc. ,  MStar Semiconductor, Inc. ,  MStar Software R&D (Shenzhen) Ltd.

    发明人： Simon George-Kelso ,  Francesc Boixadera

    IPC分类号： G05F1/46 ,  H02M3/156 ,  G05F1/10 ,  H02M1/00

    CPC分类号： H02M3/156 ,  G05F1/10 ,  G05F1/46 ,  H02M2001/0032 ,  Y02B70/16

    摘要： Techniques are provided that can extend the efficiency of a switching regulator further into the low current region by making use of the available knowledge on predictable load variations and voltage ripple tolerance across different states, providing improved efficiency and reducing total current consumption. The load current requirement in low power states is provided using switch mode rather than linear regulation, the switch mode operation being controlled by a mode dependent control circuit so as to minimize the energy cost of the switching operation in each mode and thus obtain improved efficiency from the power source.

    摘要翻译： 提供了通过利用关于不同状态下的可预测负载变化和电压纹波耐受性的可用知识，可以进一步将开关调节器的效率进一步扩展到低电流区域的技术，从而提供改进的效率并降低总电流消耗。 低功耗状态下的负载电流要求是采用开关模式而不是线性调节方式提供的，开关模式操作由模式相关的控制电路控制，从而最大程度地降低各模式下开关操作的能源成本，从而从 电源。

    Efficient Energy Use in Low Power Products
    3.
    发明申请
    Efficient Energy Use in Low Power Products 有权
    低功耗产品的高效能源使用

    公开(公告)号：US20140015505A1

    公开(公告)日：2014-01-16

    申请号：US13623969

    申请日：2012-09-21

    申请人： MSTAR SEMICONDUCTOR, INC. ,  MSTAR SEMICONDUCTOR, INC. ,  MSTAR SOFTWARE R&D (SHENZHEN) LTD.

    发明人： Simon George-Kelso ,  Francesc Boixadera

    IPC分类号： G05F1/46

    CPC分类号： H02M3/156 ,  G05F1/10 ,  G05F1/46 ,  H02M2001/0032 ,  Y02B70/16

    摘要： Techniques are provided that can extend the efficiency of a switching regulator further into the low current region by making use of the available knowledge on predictable load variations and voltage ripple tolerance across different states, providing improved efficiency and reducing total current consumption. The load current requirement in low power states is provided using switch mode rather than linear regulation, the switch mode operation being controlled by a mode dependent control circuit so as to minimize the energy cost of the switching operation in each mode and thus obtain improved efficiency from the power source.

    摘要翻译： 提供了通过利用关于不同状态下的可预测负载变化和电压纹波耐受性的可用知识，可以进一步将开关调节器的效率进一步扩展到低电流区域的技术，从而提供改进的效率并降低总电流消耗。 低功耗状态下的负载电流要求是采用开关模式而不是线性调节方式提供的，开关模式操作由模式相关的控制电路控制，从而最大程度地降低各模式下开关操作的能源成本，从而从 电源。

    Multimode Mobile Communication Network Search in a Wireless Communication Device
    4.
    发明申请
    Multimode Mobile Communication Network Search in a Wireless Communication Device 审中-公开
    无线通信设备中的多模移动通信网络搜索

    公开(公告)号：US20150289198A1

    公开(公告)日：2015-10-08

    申请号：US14245023

    申请日：2014-04-04

    申请人： MStar Semiconductor, Inc.

    发明人： Francesc Boixadera ,  Cyril Valadon

    IPC分类号： H04W48/14

    CPC分类号： H04W48/16 ,  H04W48/18

    摘要： A wireless communication device includes a wireless transceiver to wirelessly receive and transmit radio frequency (RF) signals and sample a signal representative of the received RF signal over a predetermined time period. The receiver stores the sampled signal in a memory. After the predetermined time period, a processor, coupled to the wireless transceiver and the memory, concurrently searches the sampled signal for multiple communication signals each operating according to a corresponding one of multiple, different mobile communication standards. If one of the communication signals is found, the WCD attempts to connect wirelessly with a communication network from which the found communication signal originates.

    摘要翻译： 无线通信设备包括无线收发器以无线地接收和发送射频（RF）信号，并且在预定时间段内对表示所接收的RF信号的信号进行采样。 接收器将采样信号存储在存储器中。 在预定时间段之后，耦合到无线收发器和存储器的处理器同时搜索采样信号以获得多个通信信号，每个通信信号根据多个不同的移动通信标准中相应的一个操作。 如果找到其中一个通信信号，则WCD尝试与发现的通信信号源自的通信网络进行无线连接。

    Multimode mobile communication network search in a wireless communication device
    5.
    发明授权
    Multimode mobile communication network search in a wireless communication device 有权

    公开(公告)号：US10154448B2

    公开(公告)日：2018-12-11

    申请号：US14245023

    申请日：2014-04-04

    申请人： MStar Semiconductor, Inc.

    发明人： Francesc Boixadera ,  Cyril Valadon

    IPC分类号： H04W48/16 ,  H04W48/18

    摘要： A wireless communication device includes a wireless transceiver to wirelessly receive and transmit radio frequency (RF) signals and sample a signal representative of the received RF signal over a predetermined time period. The receiver stores the sampled signal in a memory. After the predetermined time period, a processor, coupled to the wireless transceiver and the memory, concurrently searches the sampled signal for multiple communication signals each operating according to a corresponding one of multiple, different mobile communication standards. If one of the communication signals is found, the WCD attempts to connect wirelessly with a communication network from which the found communication signal originates.

    Method for estimating frequency difference
    6.
    发明授权
    Method for estimating frequency difference 有权
    估计频差的方法

    公开(公告)号：US09215605B2

    公开(公告)日：2015-12-15

    申请号：US13845264

    申请日：2013-03-18

    申请人： MStar Semiconductor, Inc.

    发明人： Chi-Yuan Peng ,  Chun-Jung Wu ,  Huan-Hsiu Tseng ,  Ping-Hung Chiang ,  Yu-Tai Chang ,  Francesc Boixadera

    IPC分类号： H04W24/02 ,  H04W56/00

    CPC分类号： H04W24/02 ,  H04W56/0035

    摘要： A method for estimating a frequency difference between a transmission terminal and a reception terminal according to a reception signal is provided. The method includes steps of: in a first period, receiving and storing a first part of the reception signal; in a second period, frequency shifting the first part of the reception signal according to an L number of sweep frequencies, and correspondingly obtaining multiple first part correlation results, where L is a positive integer; in the second period, receiving and storing a second part of the reception signal; in a third period, frequency shifting the second part of the reception signal according to the L number of sweep frequencies, and correspondingly obtaining multiple second part correlation results; and estimating the frequency difference according to the first and second part correlation results.

    摘要翻译： 提供了一种根据接收信号估计发送终端与接收终端之间的频率差的方法。 该方法包括以下步骤：在第一时段中，接收和存储接收信号的第一部分; 在第二周期中，根据L个扫频，对接收信号的第一部分进行频移，并相应地获得多个第一部分相关结果，其中L是正整数; 在第二时段中，接收和存储接收信号的第二部分; 在第三时段中，根据L个扫描频率对接收信号的第二部分进行频移，并相应地获得多个第二部分相关结果; 以及根据第一和第二部分相关结果估计频率差。

    METHOD FOR ESTIMATING FREQUENCY DIFFERENCE
    7.
    发明申请
    METHOD FOR ESTIMATING FREQUENCY DIFFERENCE 有权
    估计频率差异的方法

    公开(公告)号：US20140073315A1

    公开(公告)日：2014-03-13

    申请号：US13845264

    申请日：2013-03-18

    申请人： MSTAR SEMICONDUCTOR, INC.

    发明人： Chi-Yuan Peng ,  Chun-Jung Wu ,  Huan-Hsiu Tseng ,  Ping-Hung Chiang ,  Yu-Tai Chang ,  Francesc Boixadera

    IPC分类号： H04W24/02

    CPC分类号： H04W24/02 ,  H04W56/0035

    摘要： A method for estimating a frequency difference between a transmission terminal and a reception terminal according to a reception signal is provided. The method includes steps of: in a first period, receiving and storing a first part of the reception signal; in a second period, frequency shifting the first part of the reception signal according to an L number of sweep frequencies, and correspondingly obtaining multiple first part correlation results, where L is a positive integer; in the second period, receiving and storing a second part of the reception signal; in a third period, frequency shifting the second part of the reception signal according to the L number of sweep frequencies, and correspondingly obtaining multiple second part correlation results; and estimating the frequency difference according to the first and second part correlation results.

    摘要翻译： 提供了一种根据接收信号估计发送终端与接收终端之间的频率差的方法。 该方法包括以下步骤：在第一时段中，接收和存储接收信号的第一部分; 在第二周期中，根据L个扫频，对接收信号的第一部分进行频移，并相应地获得多个第一部分相关结果，其中L是正整数; 在第二时段中，接收和存储接收信号的第二部分; 在第三时段中，根据L个扫描频率对接收信号的第二部分进行频移，并相应地获得多个第二部分相关结果; 以及根据第一和第二部分相关结果估计频率差。