会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 1. 发明授权
    • Transmitter architectures for communications systems
    • 用于通信系统的发射机架构
    • US06721368B1
    • 2004-04-13
    • US09519734
    • 2000-03-04
    • Saed YounisEmilija SimicThomas WilbornHaitao ZhangDaniel FilipovicRalph KaufmanMing (Jason) Yu Lin
    • Saed YounisEmilija SimicThomas WilbornHaitao ZhangDaniel FilipovicRalph KaufmanMing (Jason) Yu Lin
    • H04L2704
    • H03G3/3042H03F2203/7239H03G1/0088
    • Transmitter architectures for a communications system having improved performance over conventional transmitter architectures. The improvements include a combination of the following: faster response time for the control signals, improved linearity, reduced interference, reduced power consumption, lower circuit complexity, and lower costs. For a cellular application, these improvements can lead to increased system capacity, smaller telephone size, increased talk and standby times, and greater acceptance of the product. Circuitry is provided to speed up the response time of a control signal. The control loop for various elements in the transmit signal path are integrated. A gain control mechanism allows for accurate adjustment of the output transmit power level. Control mechanisms are provided to power down the power amplifier, or the entire transmit signal path, when not needed. The gains of the various elements in the transmit signal path are controlled to reduce transients in the output transmit power, and to also ensure that transients are downward.
    • 具有比传统发射机架构具有改进性能的通信系统的发射机架构。 这些改进包括以下组合:控制信号的响应时间更快,线性度更好,干扰减少,功耗降低,电路复杂度降低,成本降低。 对于蜂窝应用,这些改进可以导致系统容量增加,电话尺寸更小,通话和待机时间增加,以及对产品的更多接受。 提供电路以加快控制信号的响应时间。 发送信号路径中的各种元件的控制回路被集成。 增益控制机制允许精确调整输出发射功率电平。 提供控制机制以在不需要时将功率放大器或整个发射信号路径断电。 控制发射信号路径中的各种元件的增益以减少输出发射功率的瞬变,并且还确保瞬变是向下的。