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    • 9. 发明授权
    • Method for intelligent parking/pollution and surveillance control system
    • 智能停车/污染监控系统方法
    • US07321317B2
    • 2008-01-22
    • US11478510
    • 2006-06-29
    • Sanjeev NathRajesh Patel
    • Sanjeev NathRajesh Patel
    • G08G1/01
    • G07F17/246G06Q30/0284G07B15/02G08G1/017G08G1/123G08G1/14
    • The invention relates to systems to manage parking meters using mechanical, electrical and electromechanicals monitoring and transmitting devices. Such intelligent parking meters may be used for example to monitor pollution by idling vehicles, survey the area about the meters to identify events such as vandalism, accident or any other designated emergency situation, and to monitor volume and flow of traffic to help coordinate traffic light sequencing for facilitating optimum traffic movement. The meters may be coin, bill or card operated and are useful for monitoring individual parking spaces designed to monitor conditions ambient to the parking meter and issue summons to vehicles violating the preset requirements.
    • 本发明涉及使用机械,电气和机电监控和发射装置来管理停车计费器的系统。 这样的智能停车收费表可以用于监测怠速车辆的污染,调查仪表的区域,以识别事故,如破坏行为,事故或任何其他指定的紧急情况,并监测交通量和流量,以协助交通灯 排序,以促进最佳交通运动。 仪表可以是硬币,纸币或卡片操作,并且可用于监测专用于监视停车计时器周围环境的各个停车位,并向违反预设要求的车辆发出传票。
    • 10. 发明申请
    • Apparatus and method for dynamically clocking a loop filter in a digital communications device
    • 用于在数字通信设备中动态计时环路滤波器的装置和方法
    • US20070104289A1
    • 2007-05-10
    • US11268798
    • 2005-11-08
    • Paul LiangRajesh Patel
    • Paul LiangRajesh Patel
    • H04L27/00
    • H04L27/12H04L27/20
    • A transmitter has a signal generator, an amplifier, a detection circuit, a comparison circuit, a loop filter, and an adjustable clock. The signal generator produces a signal. The signal is produced with a first frequency characteristic and contains frequency-related information. The detection circuit detects the first frequency-related characteristic and generates an associated signal in response. A comparison circuit compares the signal from the detection circuit and another signal. It outputs a signal associated with the difference between the two. A loop filter receives the output of the comparison circuit and generates a signal to the signal generator in. The loop filter is clocked at a second frequency by a signal from a clock circuit. The clock circuit can compare the first frequency and the second frequency, and can change the second frequency based upon a relationship between the two frequencies.
    • 发射机具有信号发生器,放大器,检测电路,比较电路,环路滤波器和可调节时钟。 信号发生器产生信号。 该信号产生具有第一频率特性并且包含频率相关信息。 检测电路检测第一频率相关特性并产生响应的相关信号。 比较电路将来自检测电路的信号与另一信号进行比较。 它输出与两者之间的差异相关联的信号。 环路滤波器接收比较电路的输出并产生信号到信号发生器。环路滤波器以来自时钟电路的信号以第二频率被计时。 时钟电路可以比较第一频率和第二频率,并且可以基于两个频率之间的关系来改变第二频率。