GPS signal processing with 5-level carrier injection demodulation
function using dual 3-level single sideband mixers
    1.
    发明授权
    GPS signal processing with 5-level carrier injection demodulation function using dual 3-level single sideband mixers 失效
    GPS信号处理采用5级载波注入解调功能,采用双3级单边带混频器

    公开(公告)号:US5202693A

    公开(公告)日:1993-04-13

    申请号:US857201

    申请日:1992-03-25

    申请人: Wai-Cheung Lee

    发明人: Wai-Cheung Lee

    IPC分类号: G01S1/00

    CPC分类号: G01S19/30 G01S19/29

    摘要: An improved GPS receiver including a 5-level carrier injection function for digitally demodulating down-converted GPS signals, which utilizes dual 3-level single sideband mixers where one of the single sideband mixers is delayed by a predetermined interval, thereby allowing for the combination of the two 3-level single sideband mixers to be combined to provide an overall output signal which is representative of an output of a demodulator using a 5-level carrier injection signal.

    摘要翻译: 一种改进的GPS接收机,其包括用于数字解调下变频GPS信号的5级载波注入功能,其利用双3级单边带混频器,其中单边带混频器之一延迟预定间隔,从而允许 要组合的两个3电平单边带混频器提供总体输出信号,其表示使用5电平载波注入信号的解调器的输出。

    Fluid power storage device
    2.
    发明授权
    Fluid power storage device 失效
    流体蓄电装置

    公开(公告)号:US6099255A

    公开(公告)日:2000-08-08

    申请号:US817817

    申请日:1997-04-17

    申请人: Wai Cheung Lee

    发明人: Wai Cheung Lee

    IPC分类号: F03D9/10 F03D15/00 B63H23/30

    摘要: A fluid power storage device is provided in which, the prime mover directly or through a slow-down gear train winds up a spring device having a latch attached therein. The spring device can be a spiral spring or simply a rubber band. When the stored up energy is great enough, an adjustable stopper automatically releases the spring device being latched. The spring device in turn, releases the stored energy which then activates a mechanism or drives an electric generator. After a certain amount of energy stored up is released, the latch will automatically be caught by the stopper. Hence the mechanism or the electric generator will be stopped and the fluid power storage device starts to store up energy again for the next release of the spring device.

    摘要翻译: PCT No.PCT / CA94 / 00567 Sec。 371日期1997年04月14日 102(e)1997年4月14日PCT PCT 1996年4月26日PCT公布。 WO96 / 12106 PCT出版物 日期1996年04月25日提供了一种流体动力储存装置,其中原动机直接或通过减速齿轮系卷起弹簧装置,弹簧装置具有附接在其中的闩锁。 弹簧装置可以是螺旋弹簧或简单的橡胶带。 当存储的能量足够大时,可调节的限位器自动释放被锁定的弹簧装置。 弹簧装置依次释放存储的能量,然后启动机构或驱动发电机。 在储存一定量的能量被释放后,闩锁将自动被挡块卡住。 因此,机构或发电机将停止,并且流体储能装置再次开始储存能量,以便下一次释放弹簧装置。