Method and apparatus for reception of long range signals in bluetooth
    21.
    发明授权
    Method and apparatus for reception of long range signals in bluetooth 有权
    用于在蓝牙中接收远程信号的方法和装置

    公开(公告)号:US07949327B2

    公开(公告)日:2011-05-24

    申请号:US11435948

    申请日:2006-05-18

    IPC分类号: H04M1/66

    摘要: The invention of a method and an apparatus for reception of long transmission range Bluetooth signals impaired by multipath are disclosed. The new reception method and apparatus proposed allows to increase the transmission range for data transmission in Bluetooth. The invention proposes the use of a new FDE adapted to SC transmission without a GI or CP. The proposed FDE very successfully mitigates ISI while being very implementation-friendly.

    摘要翻译: 公开了一种用于接收受多径损害的长传输范围蓝牙信号的方法和装置的发明。 所提出的新的接收方法和装置允许增加蓝牙中数据传输的传输范围。 本发明提出了在没有GI或CP的情况下适用于SC传输的新的FDE的使用。 提出的FDE非常成功地减轻ISI,同时非常实用。

    OPERATION METHOD OF WIRELESS POINTING INPUT APPARATUS
    22.
    发明申请
    OPERATION METHOD OF WIRELESS POINTING INPUT APPARATUS 审中-公开
    无线点式输入装置的操作方法

    公开(公告)号:US20080204413A1

    公开(公告)日:2008-08-28

    申请号:US11679187

    申请日:2007-02-27

    IPC分类号: G06F3/033

    CPC分类号: G06F3/0383

    摘要: An operation method of a wireless pointing input apparatus is provided. The operation method includes following steps. The displacement vector of the wireless pointing input apparatus is detected with a resolution. The displacement vector of the wireless pointing input apparatus is transmitted to a host in a wireless way every a time interval. The time interval is decreased correspondingly if the resolution is increased. Or, the time interval is increased correspondingly if the resolution is decreased.

    摘要翻译: 提供了一种无线指向输入装置的操作方法。 操作方法包括以下步骤。 以分辨率检测无线指示输入装置的位移矢量。 无线指示输入装置的位移矢量每隔一段时间以无线方式发送给主机。 如果分辨率增加,则时间间隔相应降低。 或者,如果分辨率降低,则时间间隔相应地增加。

    Charging control system for lithium battery
    23.
    发明申请
    Charging control system for lithium battery 有权
    锂电池充电控制系统

    公开(公告)号:US20080054846A1

    公开(公告)日:2008-03-06

    申请号:US11515728

    申请日:2006-09-06

    IPC分类号: H02J7/00

    CPC分类号: H02J7/0081

    摘要: A charging control system for lithium battery is provided, and it detects the existing voltage of the charging lithium battery by a voltage detector and passes this voltage value to a microprocessor preset in the hand-held apparatus. Thus, the microprocessor can decide the applicable charge stage and confirm the status of the charging battery depending on the different voltage values in real time. Next, the microprocessor controls a control unit by a pulse width modulation signal to modulate the power-source, which comes from an adaptor, as a constant current or a constant voltage to charge the battery. Accordingly, the charge process is completed by repeating the voltage detection and the duty cycle modulation of the control unit.

    摘要翻译: 提供了一种用于锂电池的充电控制系统,并且通过电压检测器检测充电锂电池的现有电压,并将该电压值传递到预置在手持式设备中的微处理器。 因此,微处理器可以根据不同的电压值实时确定适用的充电阶段并确认充电电池的状态。 接下来,微处理器通过脉冲宽度调制信号控制控制单元,以将来自适配器的电源调制为恒定电流或恒定电压来对电池充电。 因此,通过重复控制单元的电压检测和占空比调制来完成充电处理。

    Packet type arbitrator in WLAN and corresponding arbitrating method
    24.
    发明授权
    Packet type arbitrator in WLAN and corresponding arbitrating method 有权
    WLAN中的分组类型仲裁器和相应的仲裁方法

    公开(公告)号:US07308002B2

    公开(公告)日:2007-12-11

    申请号:US10718624

    申请日:2003-11-24

    IPC分类号: H04J3/24

    摘要: This specification discloses a packet type arbitrator in a wireless local area network (WLAN) and its arbitrating method. The arbitrator contains at least two packet type detectors and a packet type decider. The packet type detector is installed with a false alarm checking module and a timer according to the strength of the packet for delaying the decision from the packet type decider. Through the checking mechanism of the false alarm checking module and the timer, erroneous decision can be avoided when determining the packet type.

    摘要翻译: 本说明书公开了无线局域网(WLAN)中的分组类型仲裁器及其仲裁方法。 仲裁器包含至少两个分组类型检测器和分组类型判定器。 分组类型检测器根据分组强度安装了一个假警报检测模块和一个定时器,用于延迟分组类型决定器的决定。 通过错误检测模块和定时器的检查机制,确定分组类型时可以避免错误的决定。

    Role exchange method for Bluetooth system
    25.
    发明申请
    Role exchange method for Bluetooth system 审中-公开
    蓝牙系统角色交换方式

    公开(公告)号:US20070268875A1

    公开(公告)日:2007-11-22

    申请号:US11434235

    申请日:2006-05-16

    IPC分类号: H04Q7/24 H04J3/16

    CPC分类号: H04W84/20

    摘要: The present invention discloses a role exchange method for Bluetooth system. It comprises the steps of: a first slave asking role exchange and transmitting a FHS packet to a first master at a first time point t1; the first master exchanging as a second slave at the second time point t2; the first slave re-transmitting a plurality of FHS packet; and the first slave exchanging as a second master automatically. The role exchange method according to the present invention can solve the failure problem of role exchange procedure due to the noise in the conventional Bluetooth scheme.

    摘要翻译: 本发明公开了一种蓝牙系统的角色交换方法。 它包括以下步骤:第一从站询问角色交换并在第一时间点t 1向第一主站发送FHS分组; 第一主机在第二时间点t 2作为第二从机交换; 所述第一从机重发多个FHS分组; 并且第一个从站自动交换为第二个主站。 根据本发明的角色交换方法可以解决常规蓝牙方案中由于噪声引起的角色交换过程的失败问题。

    Method and system for channel estimation in WLAN
    26.
    发明申请
    Method and system for channel estimation in WLAN 有权
    WLAN中信道估计的方法和系统

    公开(公告)号:US20050111523A1

    公开(公告)日:2005-05-26

    申请号:US10721355

    申请日:2003-11-26

    摘要: A system and method for channel estimation in a wireless local area network. A corresponding channel estimation method includes the steps of: receiving a preamble message and dispreading the preamble message into several symbol signals, each symbol signal containing several discrete signals; determining for each symbol signal a peak sign assignment; establishing several data windows for the symbol signals at the starting points of the discrete signals; multiplying the discrete value of each discrete signal of each data window by the corresponding peak sign assignment and accumulating the product in the first data frame; repeating the above steps for the next discrete signal and accumulating them in the second data frame, . . . , the Nth data frame; computing the accumulated value in the data frames and obtaining the data frame with the maximum value; estimating a channel signal from the previously determined data frame.

    摘要翻译: 一种用于无线局域网中的信道估计的系统和方法。 相应的信道估计方法包括以下步骤:接收前同步码消息并将前同步码消息解码成若干符号信号,每个符号信号包含若干离散信号; 为每个符号信号确定峰值符号分配; 在离散信号的起始点建立符号信号的几个数据窗口; 将每个数据窗口的每个离散信号的离散值乘以相应的峰值符号分配并在第一数据帧中累积乘积; 对下一个离散信号重复上述步骤并将其累加在第二数据帧中。 。 。 ,第N个数据帧; 计算数据帧中的累积值并获得具有最大值的数据帧; 从先前确定的数据帧估计信道信号。

    Circuit and method for controlling a spread spectrum transition
    27.
    发明授权
    Circuit and method for controlling a spread spectrum transition 有权
    用于控制扩频转换的电路和方法

    公开(公告)号:US06850554B1

    公开(公告)日:2005-02-01

    申请号:US09436522

    申请日:1999-11-09

    摘要: A circuit and method for controlling a spread spectrum transition are presented comprising a first circuit and a second circuit. The first circuit may be configured to generate a clock signal in response to (i) a reference signal, (ii) a sequence of spread spectrum ROM codes, and (iii) a command signal. The second circuit may be configured to synchronize the command signal to a feedback signal. The sequence of spread spectrum ROM codes may be generated according to a predetermined mathematical formula and optimized in accordance with predetermined criteria.

    摘要翻译: 提出了一种用于控制扩频转换的电路和方法,包括第一电路和第二电路。 第一电路可以被配置为响应于(i)参考信号,(ii)扩频ROM代码序列和(iii)命令信号来产生时钟信号。 第二电路可以被配置为使命令信号与反馈信号同步。 可以根据预定的数学公式生成扩频ROM代码序列,并根据预定标准进行优化。

    Flexible flashlight extension
    28.
    发明授权
    Flexible flashlight extension 失效
    灵活的手电筒扩展

    公开(公告)号:US06718136B2

    公开(公告)日:2004-04-06

    申请号:US09941930

    申请日:2001-08-28

    IPC分类号: F21L404

    摘要: A removable flexible extension to space apart a flashlight head and body of a commercially available flashlight, thereby adding a deformable flashlight extension that can be shaped to a desired configuration.

    摘要翻译: 可拆卸的柔性延伸部,用于将商用手电筒的手电筒头和主体分开,从而增加可变形的手电筒延伸部,其可以成形为期望的配置。

    Device and method for wireless material handling systems
    29.
    发明授权
    Device and method for wireless material handling systems 失效
    无线材料处理系统的装置和方法

    公开(公告)号:US06681638B2

    公开(公告)日:2004-01-27

    申请号:US10101157

    申请日:2002-03-20

    IPC分类号: B66D148

    CPC分类号: B65G43/00

    摘要: The invention provides a device and method for wireless material handling systems. The invention further provides an instrumented glove device worn by an operator. A sensory system within the glove device measures the contact force the operator is exerting on either an object to be moved or the material handling system and generates a set of contact signals representing the contact force. The contact signals are transmitted, via a transmitter circuitry, to a controller in another location. The controller receives and processes the signals and generates a set of command signals. The command signals control the speed and mechanical assistance required of an actuator, as a function of the operator contact force, to move the material handling system.

    摘要翻译: 本发明提供一种用于无线材料处理系统的装置和方法。 本发明还提供了由操作者佩戴的仪表化手套装置。 手套装置内的感官系统测量操作者对要移动的物体或材料处理系统施加的接触力,并产生表示接触力的一组接触信号。 接触信号通过发射机电路传输到另一位置的控制器。 控制器接收并处理信号并产生一组命令信号。 命令信号控制致动器所需的速度和机械辅助作为操作者接触力的函数来移动材料处理系统。

    Circuit and method for linear control of a spread spectrum transition
    30.
    发明授权
    Circuit and method for linear control of a spread spectrum transition 有权
    用于线性控制扩频转换的电路和方法

    公开(公告)号:US06553057B1

    公开(公告)日:2003-04-22

    申请号:US09436155

    申请日:1999-11-09

    IPC分类号: H04B169

    摘要: A spread spectrum clock generator comprising a spread spectrum modulation circuit and a control circuit. The spread spectrum modulation circuit may be configured to generate a clock signal in response to (i) a sequence of linearity ROM codes, (ii) a sequence of spread spectrum ROM codes, and (iii) a command signal. The control circuit may be configured to synchronize the command signal to a feedback signal. The sequence of linearity ROM codes and the sequence of spread spectrum ROM codes may be generated by predetermined mathematical formulas and optimized in accordance with predetermined criteria.

    摘要翻译: 一种扩频时钟发生器,包括扩频调制电路和控制电路。 扩频调制电路可以被配置为响应于(i)线性ROM码序列,(ii)扩频ROM代码序列和(iii)命令信号来产生时钟信号。 控制电路可以被配置为使命令信号与反馈信号同步。 可以通过预定的数学公式产生线性ROM码序列和扩频ROM码序列,并根据预定标准进行优化。