Transmitter and Transmitting Method Thereof In Wireless Communication System
    41.
    发明申请
    Transmitter and Transmitting Method Thereof In Wireless Communication System 有权
    无线通信系统中的发射机和发射方法

    公开(公告)号:US20090054013A1

    公开(公告)日:2009-02-26

    申请号:US11847763

    申请日:2007-08-30

    IPC分类号: H04B1/02

    CPC分类号: H04B1/0483

    摘要: A transmitter and a transmitting method of a wireless communication system are provided. The transmitter transmits RF signals using an outphasing scheme of converting one analog IF NC-EMS into two analog C-EMSs. In the transmitter, a baseband processor generates a baseband digital modulated I-signal and a baseband digital modulated Q-signal. A signal converter converts the baseband digital modulated I-signal and the baseband digital modulated Q-signal into a baseband analog modulated I-signal and a baseband analog modulated Q-signal. An IF processor up-converts the baseband analog modulated I-signal and the baseband analog modulated Q-signal to generate one analog IF NC-EMS. A signal component separator separates the analog IF NC-EMS into a first analog IF C-EMS and a second analog IF C-EMS. An RF processor up-converts the first analog IF C-EMS and the second analog IF C-EMS to generate a first analog RF C-EMS and a second analog RF C-EMS. A power amplifier amplifies powers of the first and second analog RF C-EMSs. An RF combiner combines the first and second analog RF C-EMSs having the amplified powers to generate one combined analog RF C-EMS.

    摘要翻译: 提供了一种无线通信系统的发射机和发射方法。 发射机使用将一个模拟IF NC-EMS转换成两个模拟C-EMS的外部方案来发射RF信号。 在发射机中,基带处理器产生基带数字调制I信号和基带数字调制Q信号。 信号转换器将基带数字调制I信号和基带数字调制Q信号转换成基带模拟调制I信号和基带模拟调制Q信号。 IF处理器对基带模拟调制信号和基带模拟调制Q信号进行升压转换,以生成一个模拟IF NC-EMS。 信号分量分离器将模拟IF NC-EMS分为第一模拟IF C-EMS和第二模拟IF C-EMS。 RF处理器将第一个模拟IF C-EMS和第二个模拟IF C-EMS升级转换,生成第一个模拟RF C-EMS和第二个模拟RF C-EMS。 功率放大器放大第一和第二模拟RF C-EMS的功率。 RF组合器组合具有放大功率的第一和第二模拟RF C-EMS以产生一个组合的模拟RF C-EMS。

    Image sensor with improved dynamic range by applying negative voltage to unit pixel
    42.
    发明授权
    Image sensor with improved dynamic range by applying negative voltage to unit pixel 失效
    图像传感器通过向单位像素施加负电压来改善动态范围

    公开(公告)号:US06853044B1

    公开(公告)日:2005-02-08

    申请号:US09691784

    申请日:2000-10-18

    IPC分类号: H01L27/146 H01L31/00

    摘要: The present invention is to provide an image sensor, including: a semiconductor substrate of a first conductive type: a peripheral circuit formed on a first region of the semiconductor substrate, wherein a ground voltage level is applied to the first region; a unit pixel array having a plurality of unit pixels formed on a second region of the semiconductor substrate, wherein the first region is isolated from the second region and wherein a negative voltage level is applied to the second region; and a negative voltage generator for providing the negative voltage for the second region.

    摘要翻译: 本发明提供一种图像传感器,包括:第一导电类型的半导体衬底:形成在半导体衬底的第一区域上的外围电路,其中对第一区域施加接地电压电平; 具有形成在所述半导体衬底的第二区域上的多个单位像素的单位像素阵列,其中所述第一区域与所述第二区域隔离,并且其中负电压电平施加到所述第二区域; 以及用于为第二区域提供负电压的负电压发生器。