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    • 34. 发明授权
    • Digital-to-analog converter and method of operation
    • 数模转换器和操作方法
    • US06683551B1
    • 2004-01-27
    • US10219638
    • 2002-08-15
    • David TesterTimothy Wilson
    • David TesterTimothy Wilson
    • H03M166
    • H03M1/0863H03M1/742
    • The invention may relate to a digital to analog converter. The digital to analog converter may comprise a plurality of controllable current sources and a control circuit. The plurality of controllable current sources may include a first and a second controllable current source. Each of the plurality of controllable current sources may be controllable between a first state and a second state. The control circuit may be coupled to the plurality of controllable current sources. The control circuit may be configured to control digital to analog conversion at a sampling interval. The control circuit may be configured to control a first state transition of the first controllable current source at a timing in the sampling interval different from a second state transition of the second controllable current source.
    • 本发明可涉及数模转换器。 数模转换器可以包括多个可控电流源和控制电路。 多个可控电流源可以包括第一和第二可控电流源。 多个可控电流源中的每一个可以在第一状态和第二状态之间是可控的。 控制电路可以耦合到多个可控电流源。 控制电路可以被配置为以采样间隔来控制数模转换。 控制电路可以被配置为在与第二可控电流源的第二状态转换不同的采样间隔的定时处控制第一可控电流源的第一状态转变。
    • 40. 发明申请
    • Optimizing radio communication efficiency and methods thereof
    • 优化无线电通信效率及其方法
    • US20060105769A1
    • 2006-05-18
    • US10988230
    • 2004-11-12
    • Dan FlondroTimothy Wilson
    • Dan FlondroTimothy Wilson
    • H04Q7/00
    • H04W36/30
    • A selective call radio (106) operating in a communication system (100) including a plurality of radio base stations (104) operating in a corresponding plurality of communication zones (102), wherein the selective call radio is programmed to measure (206) a temperature of the selective call radio receiving radiated signals from a first one of the plurality of communication zones, measure (204) in the selective call radio an in-service signal power based on the radiated signals, determine (208) a modified signal power and an in-service signal power correction factor corresponding to the temperature, and perform a handover (212) from the first communication zone to a second one of the plurality of communication zones if the modified signal power and a handover threshold satisfy a predetermined condition.
    • 一种在包括在对应的多个通信区域(102)中操作的多个无线电基站(104)的通信系统(100)中操作的选呼通信(106),其中所述选择呼叫无线电被编程以测量(206) 选择呼叫无线电接收来自多个通信区域中的第一通信区域的辐射信号的温度,基于所述辐射信号测量(204)在选择呼叫无线电中的在职信号功率,确定(208)修改的信号功率, 如果所述修改的信号功率和切换阈值满足预定条件,则对应于所述温度的在用信号功率校正因子,并且从所述第一通信区域到所述多个通信区域中的第二通信区域执行切换(212)。