Semiconductor integrated circuit and contactless electronic device using the same
    1.
    发明公开
    Semiconductor integrated circuit and contactless electronic device using the same 有权
    在非接触式电子设备的半导体电路装置

    公开(公告)号:EP1780660A3

    公开(公告)日:2010-06-09

    申请号:EP06022553.9

    申请日:2006-10-27

    CPC classification number: G06K19/0723 G06K19/0713

    Abstract: A semiconductor integrated circuit (2), provided with a charge pump circuit (9) of low power consumption, maintains an output voltage (VOUT) thereof at a predetermined voltage level without causing current consumption to undergo intermittent variation, and a contactless electronic device (1) using the semiconductor integrated circuit (2). With respective charge pump circuit unit cells (15,19), charge current/discharge current is controlled according to the output voltage (VOUT) of the charge pump circuit (9). The charge pump circuit (9) can maintain the output voltage (VOUT) thereof at the predetermined voltage level without undergoing an intermittent action. The charge current and discharge current are supplied from power supply terminals (PA,PB) of a power supply circuit (3), current control is executed by a transistor, and a voltage outputted according to the output voltage (VOUT) of the charge pump circuit (9) is supplied to the gate of the transistor.

    Performance-based link adaptation techniques
    7.
    发明公开
    Performance-based link adaptation techniques 审中-公开
    Leistungsbasierte Techniken zur Verbindungsanpassung

    公开(公告)号:EP2056509A2

    公开(公告)日:2009-05-06

    申请号:EP08167467.3

    申请日:2008-10-24

    Abstract: A multiple carrier wireless communications system includes a channel predictor, a performance predictor, and a link adapter. The channel predictor is configured to predict channel state information for a next packet based on channel state information for the current packet. The performance predictor includes an uncoded performance predictor configured to predict system performance at an input of a decoder based on a modulation type and the predicted channel state information for the next packet, and a decoder input-output performance mapper configured to determine a required coding rate based on a requested system performance and the predicted system performance at the input of the decoder. The link adapter includes a modulation and coding scheme (MCS) updater configured to identify a MCS based on the required coding rate.

    Abstract translation: 多载波无线通信系统包括信道预测器,性能预测器和链路适配器。 信道预测器被配置为基于当前分组的信道状态信息来预测下一分组的信道状态信息。 性能预测器包括未编码的性能预测器,其被配置为基于调制类型和用于下一个分组的预测的信道状态信息来预测解码器输入端的系统性能;以及解码器输入 - 输出性能映射器,被配置为确定所需的编码率 基于所请求的系统性能和解码器输入端的预测系统性能。 链路适配器包括被配置为基于所需编码速率来识别MCS的调制和编码方案(MCS)更新器。

    SEMICONDUCTOR INTEGRATED CIRCUIT DEVICE
    8.
    发明公开
    SEMICONDUCTOR INTEGRATED CIRCUIT DEVICE 有权
    INTEGRIERTES HALBLEITERSCHALTUNGSBAUELEMENT

    公开(公告)号:EP2040378A1

    公开(公告)日:2009-03-25

    申请号:EP06780693.5

    申请日:2006-06-30

    Abstract: In a power phase period when in normal operation, switch portions SW2H and SW2L and switch portions SW3H and SW3L are turned ON, respectively, and switch portions SW1H and SW1L are turned OFF. And floating power supply is provided from an electrostatic capacitance element CS to buses A and B, a floating control circuit 4, a transmitter circuit 5, and a receiver circuit 6, respectively. In a data phase period, the switch portions SW1H and SW1L are turned ON, and the switch portions SW2H, SW2L, SW3H, and SW3L are turned OFF. By that manner, the electrostatic capacitance element CS is charged by the power supply of a battery B, and an electrostatic capacitance element CH provides the floating power supply to the floating control circuit 4, the transmitter circuit 5, and the receiver circuit 6, respectively. By this manner, a floating switch unit 7 in which the number of the switch portions is considerably reduced can be configured.

    Abstract translation: 在通常动作的电力相位期间,开关部SW2H,SW2L和开关部SW3H,SW3L分别导通,开关部SW1H,SW1L分别断开。 并且浮动电源分别从静电电容元件CS提供给总线A和B,浮动控制电路4,发送器电路5和接收器电路6。 在数据相位期间,开关部分SW1H和SW1L导通,开关部分SW2H,SW2L,SW3H和SW3L截止。 通过这种方式,静电电容元件CS由电池B的电源充电,静电电容元件CH分别向浮动控制电路4,发送器电路5和接收器电路6提供浮动电源 。 通过这种方式,可以构成开关部分的数量明显减少的浮动开关单元7。

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