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    Aquarium filter having check valve
    82.
    发明申请
    Aquarium filter having check valve 审中-公开
    带止回阀的水族箱过滤器

    公开(公告)号：US20050258086A1

    公开(公告)日：2005-11-24

    申请号：US10850250

    申请日：2004-05-18

    Applicant: Chi-Hung Lin

    Inventor： Chi-Hung Lin

    IPC: A01K63/04

    CPC classification number: A01K63/045

    Abstract: An external aquarium filter comprises an intake chamber for receiving contaminated water from an aquarium tank, a filtering chamber in flow communication with the intake chamber for filtering the contaminated water to return clean water back to the aquarium tank, a partition wall between the intake and filtering chambers for overflowing water from the intake chamber into the filtering chamber, an intake tube for supplying water the intake chamber, the intake tube including a check valve therein, and a pump for drawing water from the aquarium filter into the intake chamber through the intake tube. Responsive to stopping the pump, unfiltered water in the intake chamber is prevented from flowing back into the aquarium tank through the check valve. Also, water in the intake chamber is stored as priming water for a future restarting of the aquarium filter.

    Abstract translation: 外部水族箱过滤器包括用于从水族箱接收污染水的进气室，与进气室流动连通的过滤室，用于过滤污染的水以将清洁水返回到水族箱中，进气口和过滤器之间的分隔壁 用于从进气室向过滤室溢出水的室，用于向进气室供水的进气管，其中包括止回阀的进气管和用于通过进气管将水从水族箱过滤器吸入进气室的泵 。 响应于停止泵，防止进气室中未经过滤的水通过止回阀回流到水族箱中。 此外，进气室中的水被储存作为启动水，以便将来重新启动水族箱过滤器。

    Digital to analog converter with reduced ringing
    86.
    发明授权
    Digital to analog converter with reduced ringing 有权

    公开(公告)号：US06414618B1

    公开(公告)日：2002-07-02

    申请号：US09909282

    申请日：2001-07-19

    Applicant: Klaas Bult ,  Chi-Hung Lin

    Inventor： Klaas Bult ,  Chi-Hung Lin

    IPC: H03M166

    Abstract: Binary indications are converted to an analog representation with significant reduction in ringing at the transitions between successive binary indications and in the period during each binary indication. The binary indications are disposed in a row-and-column matrix to provide a thermometer code. Each stage of the converter includes a decoder and latch arranged so the decoder inputs settle before the latch is set by the clock pulses. The stages are implemented in complementary CMOS. Complementary transistors are biased so one transistor of the pair is driven to the rail while the other transistor of the pair floats. A dummy CMOS transistor is used to balance the number of transistors in the decoder paths.

    Digital to analog converter with reduced ringing
    88.
    发明授权
    Digital to analog converter with reduced ringing 有权
    数模转换器减少振铃

    公开(公告)号：US06191719B1

    公开(公告)日：2001-02-20

    申请号：US09458331

    申请日：1999-12-10

    Applicant: Klaas Bult ,  Chi-Hung Lin

    Inventor： Klaas Bult ,  Chi-Hung Lin

    IPC: H03M166

    CPC classification number: H03M1/0624 ,  H03M1/0682 ,  H03M1/0872 ,  H03M1/685 ,  H03M1/747

    Abstract: Binary indications are converted to an analog representation with significant reduction in ringing at the transitions between successive binary indications and in the period during each binary indication. The binary indications are disposed in a row-and-column matrix to provide a thermometer code. Each stage of the converter includes a decoder and latch arranged so the decoder inputs settle before the latch is set by the clock pulses. The stages are implemented in complementary CMOS. Complementary transistors are biased so one transistor of the pair is driven to the rail while the other transistor of the pair floats. A dummy CMOS transistor is used to balance the number of transistors in the decoder paths.

    Abstract translation: 二进制指示被转换为模拟表示，在连续的二进制指示之间的转换和每个二进制指示期间的周期中显着地减少振铃。 二进制指示以行和列矩阵布置以提供温度计代码。 转换器的每个级包括一个解码器和锁存器，所述解码器和锁存器布置成使得解码器输入在锁存器被时钟脉冲设置之前稳定。 这些阶段在互补CMOS中实现。 互补晶体管是偏置的，因此该对的一个晶体管被驱动到轨道，而另一个晶体管则浮动。 虚拟CMOS晶体管用于平衡解码器路径中的晶体管数量。

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