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    Ethernet system
    1.
    再颁专利
    Ethernet system 有权
    以太网系统

    公开(公告)号：USRE37826E1

    公开(公告)日：2002-09-03

    申请号：US09252551

    申请日：1999-02-18

    申请人： Henry Samueli ,  Mark Berman ,  Fang Lu

    发明人： Henry Samueli ,  Mark Berman ,  Fang Lu

    IPC分类号： H03H730

    CPC分类号： H04L25/03057 ,  H03L7/0995 ,  H04L7/007 ,  H04L7/0334 ,  H04L7/10 ,  H04L12/44 ,  H04L2025/03503

    摘要： Four (4) unshielded twisted pairs of wires connect a hub and a computer in an Ethernet system: one (1) pair for transmission only, another for reception only and the other two (2) for transmission and reception. The signals in the wires are in packets each having timing signals defining a preamble and thereafter having digital signals representing information as by individual ones of three (3) amplitude levels. The signals received at the computer are provided with an automatic gain control (AGC) and then with digital conversions at a particular rate. A control loop operative upon the digital conversions regulates the AGC gain at a particular value. An equalizer operative only during the occurrence of the digital signals in each packet selects an individual one of the three (3) amplitude levels closest to the amplitude of each digital conversion at the time assumed to constitute the conversion peak. The amplitudes of the timing signals in each preamble at the times assumed to constitute the peaks and zero crossings of such signals are multiplied. The rate of such digital conversions is adjusted in accordance with the polarity and magnitude of the multiplication product. The relative amplitudes of the successive equalizer values following each preamble are evaluated at the times assumed to be the peaks of the digital conversions. The rate of the digital conversions is adjusted in accordance with such evaluations, thereby further regulating the digital conversions at the particular rate. The equalizer thus operates on the information signals in each packet at the signal peaks.

    摘要翻译： 四（4）条非屏蔽双绞线在以太网系统中连接集线器和计算机：一（1）对只用于传输，另一个用于接收，另外两个用于发送和接收。 导线中的信号是分组的，每个分组具有定义信号的定时信号，此后具有表示信号的数字信号，如三（3）个振幅电平中的各个信号。 在计算机处接收的信号被提供有自动增益控制（AGC），然后以特定速率进行数字转换。 在数字转换上操作的控制回路在特定值处调节AGC增益。 仅在每个分组中的数字信号出现期间才起作用的均衡器在假设构成转换峰值的时间选择最接近每个数字转换幅度的三（3）个幅度电平中的一个幅度电平。 在假设构成这些信号的峰值和过零点的时刻，每个前置码中的定时信号的幅度被乘以。 这种数字转换的速率根据乘积的极性和大小进行调整。 在假定为数字转换的峰值的时间，评估每个前导码之后的连续均衡器值的相对幅度。 根据这些评估调整数字转换率，从而进一步规范数字转换的速度。 因此，均衡器对信号峰值处的每个信息包中的信息信号进行操作。

    Ethernet system
    2.
    发明授权
    Ethernet system 失效
    以太网系统

    公开(公告)号：US5604741A

    公开(公告)日：1997-02-18

    申请号：US398759

    申请日：1995-03-16

    申请人： Henry Samueli ,  Mark Berman ,  Fang Lu

    发明人： Henry Samueli ,  Mark Berman ,  Fang Lu

    IPC分类号： H03L7/099 ,  H04L7/02 ,  H04L7/033 ,  H04L7/04 ,  H04L7/10 ,  H04L12/413 ,  H04L12/44 ,  H04L25/03 ,  H03H7/30

    CPC分类号： H04L25/03057 ,  H04L12/44 ,  H04L7/0334 ,  H03L7/0995 ,  H04L2025/03503 ,  H04L7/007 ,  H04L7/10

    摘要： Four (4) unshielded twisted pairs of wires connect a hub and a computer in an Ethernet system: one (1) pair for transmission only, another for reception only and the other two (2) for transmission and reception. The signals in the wires are in packets each having timing signals defining a preamble and thereafter having digital signals representing information as by individual ones of three (3) amplitude levels. The signals received at the computer are provided with an automatic gain control (AGC) and then with digital conversions at a particular rate. A control loop operative upon the digital conversions regulates the AGC gain at a particular value. An equalizer operative only during the occurrence of the digital signals in each packet selects an individual one of the three (3) amplitude levels closest to the amplitude of each digital conversion at the time assumed to constitute the conversion peak. The amplitudes of the timing signals in each preamble at the times assumed to constitute the peaks and zero crossings of such signals are multiplied. The rate of such digital conversions is adjusted in accordance with the polarity and magnitude of the multiplication product. The relative amplitudes of the successive equalizer values following each preamble are evaluated at the times assumed to be the peaks of the digital conversions. The rate of the digital conversions is adjusted in accordance with such evaluations, thereby further regulating the digital conversions at the particular rate. The equalizer thus operates on the information signals in each packet at the signal peaks.

    摘要翻译： 四（4）条非屏蔽双绞线在以太网系统中连接集线器和计算机：一（1）对只用于传输，另一个用于接收，另外两个用于发送和接收。 导线中的信号是分组的，每个分组具有定义信号的定时信号，此后具有表示信号的数字信号，如三（3）个振幅电平中的各个信号。 在计算机处接收的信号被提供有自动增益控制（AGC），然后以特定速率进行数字转换。 在数字转换上操作的控制回路在特定值处调节AGC增益。 仅在每个分组中的数字信号出现期间才起作用的均衡器在假设构成转换峰值的时间选择最接近每个数字转换幅度的三（3）个幅度电平中的一个幅度电平。 在假设构成这些信号的峰值和过零点的时刻，每个前置码中的定时信号的幅度被乘以。 这种数字转换的速率根据乘积的极性和大小进行调整。 在假定为数字转换的峰值的时间，评估每个前导码之后的连续均衡器值的相对幅度。 根据这些评估调整数字转换率，从而进一步规范数字转换的速度。 因此，均衡器对信号峰值处的每个信息包中的信息信号进行操作。

    ETHERNET SYSTEM
    3.
    发明申请
    ETHERNET SYSTEM 审中-公开
    以太网系统

    公开(公告)号：US20100149006A1

    公开(公告)日：2010-06-17

    申请号：US12637629

    申请日：2009-12-14

    申请人： Henry Samueli ,  Mark Berman ,  Fang Lu

    发明人： Henry Samueli ,  Mark Berman ,  Fang Lu

    IPC分类号： H03M1/06 ,  H03M1/00

    CPC分类号： H04L25/03057 ,  H03L7/0995 ,  H04L7/007 ,  H04L7/0334 ,  H04L7/10 ,  H04L12/44 ,  H04L2025/03503

    摘要： Four (4) unshielded twisted pairs of wires connect a hub and a computer in an Ethernet system: one (1) pair for transmission only, another for reception only and the other two (2) for transmission and reception. The signals in the wires are in packets each having timing signals defining a preamble and thereafter having digital signals representing information as by individual ones of three (3) amplitude levels. The signals received at the computer are provided with an automatic gain control (AGC) and then with digital conversions at a particular rate. A control loop operative upon the digital conversions regulates the AGC gain at a particular value. An equalizer operative only during the occurrence of the digital signals in each packet selects an individual one of the three (3) amplitude levels closest to the amplitude of each digital conversion at the time assumed to constitute the conversion peak. The amplitudes of the timing signals in each preamble at the times assumed to constitute the peaks and zero crossings of such signals are multiplied. The rate of such digital conversions is adjusted in accordance with the polarity and magnitude of the multiplication product. The relative amplitudes of the successive equalizer values following each preamble are evaluated at the times assumed to be the peaks of the digital conversions. The rate of the digital conversions is adjusted in accordance with such evaluations, thereby further regulating the digital conversions at the particular rate. The equalizer thus operates on the information signals in each packet at the signal peaks.

    摘要翻译： 四（4）条非屏蔽双绞线在以太网系统中连接集线器和计算机：一（1）对只用于传输，另一个用于接收，另外两个用于发送和接收。 导线中的信号是分组的，每个分组具有定义信号的定时信号，此后具有表示信号的数字信号，如三（3）个振幅电平中的各个信号。 在计算机上接收的信号被提供有自动增益控制（AGC），然后以特定速率进行数字转换。 在数字转换上操作的控制回路在特定值处调节AGC增益。 仅在每个分组中的数字信号出现期间才起作用的均衡器在假设构成转换峰值的时间选择最接近每个数字转换幅度的三（3）个幅度电平中的一个幅度电平。 在假设构成这些信号的峰值和过零点的时刻，每个前置码中的定时信号的幅度被乘以。 这种数字转换的速率根据乘积的极性和大小进行调整。 在假定为数字转换的峰值的时间，评估每个前导码之后的连续均衡器值的相对幅度。 根据这些评估调整数字转换率，从而进一步规范数字转换的速度。 因此，均衡器对信号峰值处的每个信息包中的信息信号进行操作。