3G radio
    3.
    发明授权
    3G radio 有权
    3G无线电

    公开(公告)号:US07058364B2

    公开(公告)日:2006-06-06

    申请号:US10331383

    申请日:2002-12-30

    IPC分类号: H04B1/40

    摘要: A radio transceiver suitable for use in a mobile telephone is provided. The transceiver is operable in dual modes so as to be able to operate with both GSM and UMTS systems. In a preferred embodiment the transmitter section receives base band signals and up-converts them to an intermediate frequency of approximately 450 MHz. This is then mixed with local oscillator frequency of approximately 1.35 GHz, such that a difference frequency allows operation in the GSM 850/950 MHz band, and the sum frequency allows operation in the GSM 1800/1900 MHz bands. The frequency addition allows operation in the UMTS band. The receiver portion of the transceiver comprises a direct conversion receiver for down-converting the received signal without use of an intermediate frequency.

    摘要翻译: 提供适用于移动电话的无线电收发器。 收发器可以在双重模式下操作,以便能够与GSM和UMTS系统一起操作。 在优选实施例中,发射机部分接收基带信号并将其上变频到大约450MHz的中频。 然后将其与大约1.35GHz的本地振荡器频率混合,使得差频允许在GSM 850/950MHz频带中操作,并且和频率允许在GSM 1800/1900MHz频带中操作。 频率添加允许在UMTS频带中操作。 收发器的接收器部分包括直接转换接收器,用于在不使用中频的情况下对接收信号进行下变频。

    Bus arbitration method employing a table of slots suitably distributed amongst bus masters
    4.
    发明授权
    Bus arbitration method employing a table of slots suitably distributed amongst bus masters 有权
    总线仲裁方法采用适合分配在总线主机之间的时隙表

    公开(公告)号:US06895459B2

    公开(公告)日:2005-05-17

    申请号:US10659533

    申请日:2003-09-10

    摘要: A multiple bus architecture includes multiple processors, and one or more shared peripherals such as memory. The architecture includes plural bus masters, each connected to its own bus. There are also plural bus slaves, each connected to its own bus. A bus arbitration module selectively interconnects the buses, so that when the plural bus masters each access a different bus slave, no blocking occurs, and when the plural bus masers each access a same bus slave, bandwidth starvation is avoided. The architecture is supported by a bus arbitration method including hierarchical application of an interrupt-based method, an assigned slot rotation method and a round-robin method, which avoids both bandwidth starvation and lockout during extended periods of bus contention.

    摘要翻译: 多总线架构包括多个处理器,以及一个或多个共享外设,如存储器。 该架构包括多个总线主机,每个连接到自己的总线。 还有多个总线从站,每个都连接到自己的总线。 总线仲裁模块选择性地互连总线,使得当多个总线主机各访问不同的总线从机时,不发生阻塞,并且当多个总线主机每个访问相同的总线从机时,避免了带宽的不足。 该架构由总线仲裁方法支持,包括基于中断的方法的分层应用,分配的时隙旋转方法和循环方法,其避免在总线争用的长时间期间的带宽缺乏和锁定。

    Timing system and method for a wireless transceiver system
    6.
    发明授权
    Timing system and method for a wireless transceiver system 有权
    无线收发系统的定时系统和方法

    公开(公告)号:US07649968B2

    公开(公告)日:2010-01-19

    申请号:US11272253

    申请日:2005-11-10

    IPC分类号: H04L7/00

    摘要: A timing system is disclosed for use in a wireless communication system that includes wireless transceiver and a digital baseband processing system. The timing system includes a primary clock generation system that provides a low frequency clock that is used as the reference clock for a digital signal processing system, which generates low frequency timing signals, and a secondary clock generation system that provides a high frequency clock that is used by the wireless transceiver to produce high resolution timing signals to control the timing of the wireless transceiver. The high resolution timing signals are commenced responsive to a low resolution timing signal.

    摘要翻译: 公开了一种在包括无线收发器和数字基带处理系统的无线通信系统中使用的定时系统。 定时系统包括主时钟发生系统,其提供用作产生低频定时信号的数字信号处理系统的参考时钟的低频时钟,以及提供高频时钟的次时钟生成系统, 由无线收发器使用以产生高分辨率定时信号以控制无线收发器的定时。 高分辨率定时信号响应于低分辨率定时信号而开始。

    Timing system and method for a wireless transceiver system
    7.
    发明申请
    Timing system and method for a wireless transceiver system 有权
    无线收发系统的定时系统和方法

    公开(公告)号:US20060120495A1

    公开(公告)日:2006-06-08

    申请号:US11272253

    申请日:2005-11-10

    IPC分类号: H04L7/00

    摘要: A timing system is disclosed for use in a wireless communication system that includes wireless transceiver and a digital baseband processing system. The timing system includes a primary clock generation system that provides a low frequency clock that is used as the reference clock for a digital signal processing system, which generates low frequency timing signals, and a secondary clock generation system that provides a high frequency clock that is used by the wireless transceiver to produce high resolution timing signals to control the timing of the wireless transceiver. The high resolution timing signals are commenced responsive to a low resolution timing signal.

    摘要翻译: 公开了一种在包括无线收发器和数字基带处理系统的无线通信系统中使用的定时系统。 定时系统包括主时钟发生系统,其提供用作产生低频定时信号的数字信号处理系统的参考时钟的低频时钟,以及提供高频时钟的次时钟生成系统, 由无线收发器使用以产生高分辨率定时信号以控制无线收发器的定时。 高分辨率定时信号响应于低分辨率定时信号而开始。

    Method and apparatus for use in securing an electronic device such as a cell phone
    9.
    发明授权
    Method and apparatus for use in securing an electronic device such as a cell phone 有权
    用于固定诸如手机的电子设备的方法和装置

    公开(公告)号:US07454169B2

    公开(公告)日:2008-11-18

    申请号:US10208965

    申请日:2002-07-31

    IPC分类号: H04B1/06

    CPC分类号: G06F21/73 H04W12/12 H04W88/02

    摘要: The present invention is directed to methods and apparatus which may be used to help prevent electronic devices, including cell phones, from operating with software copied from (and only authorized for use by or on) another device. A further aspect is a device, including a cell phone, for example, that employs any of such methods and apparatus. Aspects of the present invention compare a program identifier (associated with software stored in a device) to a reference identifier for the device, so as to determine whether the software is authorized for use with that device. Some embodiments respond to the comparison substantially in hardware, so that the software being checked is less able to prevent the device from being disabled in the event that the program identifier and the reference identifier do not match one another.

    摘要翻译: 本发明涉及可用于帮助防止电子设备(包括蜂窝电话)使用从另一设备复制(并且仅被授权使用或在其上)的软件操作的方法和装置。 另一方面是一种设备,包括例如使用任何这样的方法和设备的蜂窝电话。 本发明的方面将程序标识符(与存储在设备中的软件相关联)与设备的参考标识符进行比较,以便确定软件是否被授权与该设备一起使用。 一些实施例基本上在硬件中对比较应答,使得被检查的软件在程序标识符和参考标识符彼此不匹配的情况下不太能够阻止该设备被禁用。

    Methods and apparatus for spread spectrum signal processing using a reconfigurable coprocessor
    10.
    发明授权
    Methods and apparatus for spread spectrum signal processing using a reconfigurable coprocessor 有权
    使用可重配置协处理器的扩频信号处理方法和装置

    公开(公告)号:US07433389B2

    公开(公告)日:2008-10-07

    申请号:US10300055

    申请日:2002-11-20

    IPC分类号: H04B1/00 H04B7/216 H04L27/00

    CPC分类号: H04B1/7115 H04B2201/7071

    摘要: Methods and apparatus are provided for spread spectrum signal processing in a wireless communication system. The apparatus includes a control processor to generate commands for processing spread spectrum signal components and a reconfigurable coprocessor to process the spread spectrum signal components based on the commands and to provide reports to the control processor based on results of processing the signal components.

    摘要翻译: 在无线通信系统中提供用于扩频信号处理的方法和装置。 该装置包括:控制处理器,用于产生用于处理扩展频谱信号分量的命令;以及可重构协处理器,用于基于该命令处理扩频信号分量,并根据处理信号分量的结果向控制处理器提供报告。