Reducing power consumption by in-circuit measurement of receive band attenuation and/or noise
    1.
    发明授权
    Reducing power consumption by in-circuit measurement of receive band attenuation and/or noise 失效
    通过在线测量接收频带衰减和/或噪声降低功耗

    公开(公告)号:US08774874B2

    公开(公告)日:2014-07-08

    申请号:US12794239

    申请日:2010-06-04

    IPC分类号: H04B1/38

    摘要: Although the duplexer in a full-duplex transceiver circuit may only be guaranteed by the duplexer manufacturer to have a transmit band rejection from its TX port to its RX port of a certain amount, and may only be guaranteed to have a receive band rejection of another amount, the actual transmit band rejection and the actual receive band rejection of a particular instance of the duplexer may be better than specified. Rather than consuming excess power in the receiver and/or transmitter in order to meet performance requirements assuming the duplexer only performs as well as specified, the duplexer's in-circuit performance is measured as part of a transmitter-to-receiver isolation determination. Transmitter and/or receiver power settings are reduced where possible to take advantage of the measured better-than-specified in-circuit duplexer performance, while still meeting transceiver performance requirements. Power settings are not changed during normal transmit and receive mode operation.

    摘要翻译: 虽然全双工收发器电路中的双工器可能只能由双工器制造商保证从其TX端口到其一定数量的RX端口的发射波段抑制,并且只能保证具有另一个的接收频带抑制 数量,双工器的特定实例的实际发射频带抑制和实际接收频带抑制可能优于指定的。 假设双工器仅执行指定,而不是在接收机和/或发射机中消耗多余的功率,以满足性能要求,则双工器的在线性能是作为发射机到接收机隔离确定的一部分进行测量的。 发射机和/或接收机功率设置在可能的情况下可以减少,以便在仍然满足收发器性能要求的同时利用测得的优于指定的在线双工器性能。 在正常的发送和接收模式操作期间,电源设置不会改变。

    Feedback filter
    2.
    发明授权
    Feedback filter 失效
    反馈过滤器

    公开(公告)号:US07561619B2

    公开(公告)日:2009-07-14

    申请号:US10741029

    申请日:2003-12-19

    IPC分类号: H03H7/30

    摘要: Disclosed are a system, method and device for generating an equalized signal from an input signal. Symbols in the equalized signal may be detected on each of a sequence of symbol intervals to recover a symbol value in the symbol interval. A feedback coefficient may be applied to a symbol value recovered in a previous symbol interval to generate the equalized signal in a current symbol interval. The feedback coefficient may be generated based, at least in part, on an estimated error associated with the equalized signal. The estimated error associated with the equalized output signal from among a plurality of candidate estimated error values.

    摘要翻译: 公开了一种用于从输入信号产生均衡信号的系统,方法和装置。 可以在符号间隔的每一个上检测均衡信号中的符号,以恢复符号间隔中的符号值。 可以将反馈系数应用于在先前符号间隔中恢复的符号值,以在当前符号间隔中生成均衡信号。 可以至少部分地基于与均衡信号相关联的估计误差来生成反馈系数。 与多个候选估计误差值中的均衡输出信号相关联的估计误差。

    REDUCING POWER CONSUMPTION BY IN-CIRCUIT MEASUREMENT OF RECEIVE BAND ATTENUATION AND/OR NOISE
    4.
    发明申请
    REDUCING POWER CONSUMPTION BY IN-CIRCUIT MEASUREMENT OF RECEIVE BAND ATTENUATION AND/OR NOISE 失效
    通过线路衰减测量和/或噪声降低功耗

    公开(公告)号:US20110300914A1

    公开(公告)日:2011-12-08

    申请号:US12794239

    申请日:2010-06-04

    IPC分类号: H04B1/38

    摘要: Although the duplexer in a full-duplex transceiver circuit may only be guaranteed by the duplexer manufacturer to have a transmit band rejection from its TX port to its RX port of a certain amount, and may only be guaranteed to have a receive band rejection of another amount, the actual transmit band rejection and the actual receive band rejection of a particular instance of the duplexer may be better than specified. Rather than consuming excess power in the receiver and/or transmitter in order to meet performance requirements assuming the duplexer only performs as well as specified, the duplexer's in-circuit performance is measured as part of a transmitter-to-receiver isolation determination. Transmitter and/or receiver power settings are reduced where possible to take advantage of the measured better-than-specified in-circuit duplexer performance, while still meeting transceiver performance requirements. Power settings are not changed during normal transmit and receive mode operation.

    摘要翻译: 虽然全双工收发器电路中的双工器可能只能由双工器制造商保证从其TX端口到其一定数量的RX端口的发射波段抑制,并且只能保证具有另一个的接收频带抑制 数量,双工器的特定实例的实际发射频带抑制和实际接收频带抑制可能优于指定的。 假设双工器仅执行指定,而不是在接收机和/或发射机中消耗多余的功率,以满足性能要求,则双工器的在线性能是作为发射机到接收机隔离确定的一部分进行测量的。 发射机和/或接收机功率设置在可能的情况下可以减少,以便在仍然满足收发器性能要求的同时利用测得的优于指定的在线双工器性能。 在正常的发送和接收模式操作期间,电源设置不会改变。

    Laser driver circuit and system
    5.
    发明申请
    Laser driver circuit and system 有权
    激光驱动电路和系统

    公开(公告)号:US20050271102A1

    公开(公告)日:2005-12-08

    申请号:US11200368

    申请日:2005-08-09

    摘要: A method, system, and electrical circuit for determining a magnitude of a modulation current provided to a laser device based upon an approximated slope efficiency, wherein the approximated slope efficiency is based upon at least one discrete incremental change in a bias current to the laser device and at least one change in output power from the laser device.

    摘要翻译: 一种用于基于近似的斜率效率来确定提供给激光装置的调制电流的大小的方法,系统和电路,其中所述近似斜率效率基于到所述激光装置的偏置电流中的至少一个离散增量变化 以及来自激光装置的输出功率的至少一个变化。

    Laser driver circuit and system
    6.
    发明授权
    Laser driver circuit and system 有权
    激光驱动电路和系统

    公开(公告)号:US07519093B2

    公开(公告)日:2009-04-14

    申请号:US11200368

    申请日:2005-08-09

    IPC分类号: H01S3/00

    摘要: A method, system, and electrical circuit for determining a magnitude of a modulation current provided to a laser device based upon an approximated slope efficiency, wherein the approximated slope efficiency is based upon at least one discrete incremental change in a bias current to the laser device and at least one change in output power from the laser device.

    摘要翻译: 一种用于基于近似的斜率效率来确定提供给激光装置的调制电流的大小的方法,系统和电路,其中所述近似斜率效率基于到所述激光装置的偏置电流中的至少一个离散增量变化 以及来自激光装置的输出功率的至少一个变化。

    Filter with signal taps temporally spaced at fractional symbol intervals
    7.
    发明授权
    Filter with signal taps temporally spaced at fractional symbol intervals 有权
    用分数符号间隔时间间隔的信号抽头滤波

    公开(公告)号:US07301998B2

    公开(公告)日:2007-11-27

    申请号:US10742119

    申请日:2003-12-19

    IPC分类号: H03K5/159

    摘要: Described are methods and devices for processing a signal transmitting symbols which are temporally spaced on symbol intervals. The signal may be tapped at fractional symbol intervals to provide a plurality of signal taps at the fractional symbol intervals. Each of a plurality of coefficients may be applied to a corresponding one of the signal taps to generate an equalized signal. For at least one of the signal taps, the corresponding coefficient may be updated no more frequently than once per symbol interval.

    摘要翻译: 描述了用于处理在符号间隔上在时间上间隔开的符号的信号的方法和装置。 信号可以以分数符号间隔被抽头以在分数符号间隔处提供多个信号抽头。 多个系数中的每一个可以被施加到相应的一个信号抽头以产生均衡的信号。 对于至少一个信号抽头,相应的系数可以不再比每个符号间隔更频繁地更新。

    Filter with signal taps temporally spaced at fractional symbol intervals
    8.
    发明申请
    Filter with signal taps temporally spaced at fractional symbol intervals 有权
    用分数符号间隔时间间隔的信号抽头滤波

    公开(公告)号:US20050135473A1

    公开(公告)日:2005-06-23

    申请号:US10742119

    申请日:2003-12-19

    摘要: Described are methods and devices for processing a signal transmitting symbols which are temporally spaced on symbol intervals. The signal may be tapped at fractional symbol intervals to provide a plurality of signal taps at the fractional symbol intervals. Each of a plurality of coefficients may be applied to a corresponding one of the signal taps to generate an equalized signal. For at least one of the signal taps, the corresponding coefficient may be updated no more frequently than once per symbol interval.

    摘要翻译: 描述了用于处理在符号间隔上在时间上间隔开的符号的信号的方法和装置。 信号可以以分数符号间隔被抽头以在分数符号间隔处提供多个信号抽头。 多个系数中的每一个可以被施加到相应的一个信号抽头以产生均衡的信号。 对于至少一个信号抽头,相应的系数可以不再比每个符号间隔更频繁地更新。

    Active thermal management for ultrasound catheter probe
    9.
    发明申请
    Active thermal management for ultrasound catheter probe 审中-公开
    超声波导管探头的主动热管理

    公开(公告)号:US20070232923A1

    公开(公告)日:2007-10-04

    申请号:US11715768

    申请日:2007-03-08

    申请人: Bhushan Asuri

    发明人: Bhushan Asuri

    IPC分类号: A61B8/14

    摘要: In accordance with the invention, an ultrasound imaging device includes a fluid flow path between a distal end having ultrasound transducers and a proximal end that is electrically coupled to the distal end to enable the exchange of electrical signals. Cooling fluid within the flow path transfers heat generated by the ultrasound transducers and other heat-generating components located at the distal end. The heat flow path is one element of an active thermal management sub-system, which may also include a Thermo Electric Cooler (TEC). The active thermal management sub-system may alternatively or additionally include a heat sink to transfer thermal energy. A temperature monitor may be used for the embodiment in which the sub-system dynamically provides thermal regulation.

    摘要翻译: 根据本发明,超声成像装置包括在具有超声换能器的远端和电耦合到远端的近端之间的流体流动路径,以实现电信号的交换。 流路内的冷却流体传递由超声波换能器和位于远端的其他发热元件产生的热量。 热流路是有源热管理子系统的一个元件,其还可以包括热电冷却器(TEC)。 有源热管理子系统可以可选地或另外包括传递热能的散热器。 对于其中子系统动态地提供热调节的实施例,可以使用温度监视器。

    Laser driver circuit and system
    10.
    发明授权
    Laser driver circuit and system 失效
    激光驱动电路和系统

    公开(公告)号:US06928094B2

    公开(公告)日:2005-08-09

    申请号:US10321177

    申请日:2002-12-16

    摘要: A laser driver circuit to provide a current signal to power a laser device is described. A bias current provided to the laser device may be changed while changes in the output power of a light signal from the laser device is monitored. A slope efficiency associated with the laser device may be determined based upon the changes in the bias current and changes in the output power.

    摘要翻译: 描述了提供电流信号来激励激光装置的激光驱动电路。 可以改变提供给激光装置的偏置电流,同时监测来自激光装置的光信号的输出功率的变化。 可以基于偏置电流的变化和输出功率的变化来确定与激光器件相关联的斜率效率。