Method and apparatus for low voltage temperature sensing

    公开(公告)号:US07084695B2

    公开(公告)日:2006-08-01

    申请号:US10931831

    申请日:2004-08-31

    Inventor: J. David Porter

    CPC classification number: G01K7/015 G01K2219/00

    Abstract: A temperature sensor device and method of sensing temperature are disclosed. The device and method include generating a reference voltage inversely correlated to the temperature, generating a plurality of analysis voltages correlated to the temperature using a reference current, comparing the reference voltage to each of the plurality of analysis voltages, and generating a temperature estimate based on the comparison. The device and method may also include a method to selectively bypass various resistors in a resistor stack used to generate the various analysis voltages. Another embodiment of the present invention comprises a semiconductor device including at least one temperature sensor according to the invention described herein. The temperature sensor and method of sensing temperature may be incorporated into a semiconductor device, which may be fabricated on a semiconductor wafer and included in an electronic system.

    Control signalling and dynamic channel allocation in a wireless network
    60.
    发明授权
    Control signalling and dynamic channel allocation in a wireless network 有权
    无线网络中的控制信令和动态信道分配

    公开(公告)号:US06977912B1

    公开(公告)日:2005-12-20

    申请号:US09592683

    申请日:2000-06-12

    Abstract: A dynamic channel allocation method and system for use in a wireless network operates by monitoring at least the allocated channel allocated to a particular network node to generate one or more channel metrics relating to radio conditions on the channel. The metrics generated are Received signal power, signal to noise ratio of transmissions on the network and long-term mean square of the equaliser error used in each terminal. The generated metrics are communicated back to the cell access point or the network control server over a signalling channel, and a new frequency is allocated to the cell if it is determined from the metrics that the presently allocated channel is suffering interference. The signalling channel is preferably an ATM VPI/VCI pair, such that signalling messages are transmitted as ATM cells which can be communicated across the wireless channel using the sane signalling frame as is used for payload cells.

    Abstract translation: 用于无线网络的动态信道分配方法和系统通过至少监视分配给特定网络节点的分配信道来生成与该信道上的无线电条件有关的一个或多个信道度量来进行操作。 生成的度量是接收信号功率,网络上的传输的信噪比和每个终端中使用的均衡器误差的长期均方。 所生成的度量通过信令信道被传送回小区接入点或网络控制服务器,如果从该度量确定当前分配的信道正在遭受干扰,则将新频率分配给小区。 信令信道优选地是ATM VPI / VCI对,使得信令消息作为ATM信元被发送,ATM信元可以使用与用于有效载荷信元的信号相同的信号通过无线信道进行通信。

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