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    Method and system for time domain interpolation of digital audio signals
    2.
    发明授权
    Method and system for time domain interpolation of digital audio signals 失效
    数字音频信号时域插值的方法和系统

    公开(公告)号：US5226000A

    公开(公告)日：1993-07-06

    申请号：US708912

    申请日：1991-05-31

    申请人： Robert W. Moses ,  Raymond S. Miller ,  Charles H. Hustig ,  Donald W. Moses ,  Robert S. Bradford ,  Jeffrey L. Ward ,  Wayne P. Olson ,  Janice L. Cox ,  James M. Kresse

    发明人： Robert W. Moses ,  Raymond S. Miller ,  Charles H. Hustig ,  Donald W. Moses ,  Robert S. Bradford ,  Jeffrey L. Ward ,  Wayne P. Olson ,  Janice L. Cox ,  James M. Kresse

    IPC分类号： G06F17/17

    CPC分类号： G06F17/17

    摘要： A method and system is provided for a digital audio system to reconstruct a digital audio signal using time domain interpolation and direct power digital-to-analog conversion. A signal processor performs the time domain interpolation on an original digital audio signal to allow for the proper recreation of the original audio signal and a direct power output digital-to-analog converter generates an analog power audio output signal from the interpolated digital audio signal that can directly drive a speaker to produce the sound waves represented by the audio output signal. The signal processor and direct power output digital-to-analog converter allow a digital audio system to more precisely reconstruct an analog power output audio signal from a digital audio signal such that there is no need for further amplification of the audio output signal and such that there will be no perceptible difference between the reconstructed digital signal and the original analog signal.

    摘要翻译： 提供了一种用于数字音频系统的方法和系统，以使用时域插值和直接功率数模转换来重构数字音频信号。 信号处理器对原始数字音频信号执行时域内插以允许对原始音频信号的适当重建，并且直接功率输出数/模转换器从内插的数字音频信号产生模拟功率音频输出信号，该内插数字音频信号 可以直接驱动扬声器产生由音频输出信号表示的声波。 信号处理器和直接功率输出数模转换器允许数字音频系统从数字音频信号更精确地重建模拟功率输出音频信号，使得不需要进一步放大音频输出信号，并且使得 在重建的数字信号和原始模拟信号之间将不会有明显的差异。

    Bi-directional data telemetry system
    3.
    发明授权
    Bi-directional data telemetry system 失效
    双向数据遥测系统

    公开(公告)号：US4724435A

    公开(公告)日：1988-02-09

    申请号：US796052

    申请日：1985-11-06

    申请人： Donald W. Moses ,  Robert Moses ,  James W. Kinne ,  Charles H. Hustig ,  Wayne P. Olson ,  Alan M. Doberstein ,  Robert S. Bradford

    发明人： Donald W. Moses ,  Robert Moses ,  James W. Kinne ,  Charles H. Hustig ,  Wayne P. Olson ,  Alan M. Doberstein ,  Robert S. Bradford

    IPC分类号： G08C19/00 ,  H02J13/00 ,  H04M11/00 ,  H04Q11/00 ,  G08C15/08

    CPC分类号： H02J13/0072 ,  H04M11/002 ,  Y02E60/7846 ,  Y04S40/125

    摘要： The data telemetry system disclosed is a complete data communications systems suitable for use by utilities such as electric companies, gas companies and water companies which can be used for meter reading and load management at individual subscribers premises. Elements of the system can also be used as a power load carrier in a premise specific local area network (LAN). With the system is disclosed, all 10,000 subscribers per exchange can be serviced. It will be understood that data can be multiplexed between a central office location and remote subscribers for any suitable purpose with the data system as disclosed. A packet switching structure is disclosed having eight to thirty-two bytes in the data message. This packet is routed between the utility and remote subscriber with routing headers being added and deleted as required by the network modules. Each successive layer of the multiplexing and switching hierarchy submultiplies the aggregate 10,000 channel capacity into fewer channels. Both time and space division switching and multiplexing are used.

    摘要翻译： 所公开的数据遥测系统是适用于诸如电力公司，燃气公司和水公司的公用事业的完整数据通信系统，可用于各个用户场所的抄表和负载管理。 系统的元件也可以用作内部特定局域网（LAN）中的电力负载运营商。 通过系统披露，每个交换机可以维护10,000个用户。 应当理解，在所公开的数据系统的任何适当目的下，可以在中心局位置和远程用户之间复用数据。 公开了一种在数据消息中具有八到三十二个字节的分组交换结构。 该分组在实用程序和远程用户之间路由，并且根据网络模块的要求添加和删除路由头。 复合和交换层级的每个连续层将聚合的10,000个信道容量乘以较少的信道。 使用时分和空分切换和多路复用。

    Non-clogging microporous filter with cross flow operation
    5.
    发明授权
    Non-clogging microporous filter with cross flow operation 失效
    不堵塞微孔过滤器，具有交叉流动操作

    公开(公告)号：US4178248A

    公开(公告)日：1979-12-11

    申请号：US847584

    申请日：1977-11-01

    申请人： Mark C. Porter ,  Wayne P. Olson

    发明人： Mark C. Porter ,  Wayne P. Olson

    IPC分类号： B01D29/17 ,  B01D27/06

    CPC分类号： B01D29/17

    摘要： A microporous filter having pleated filter cartridge is provided with inlet and bypass ports for establishing tangential flow across outside boundary of cartridge inlet side resulting in slow clogging operation.

    摘要翻译： 具有褶皱过滤器滤芯的微孔过滤器设置有入口和旁路端口，用于建立穿过料盒入口侧的边界的切向流动，导致缓慢的堵塞操作。