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    Process and devices for transmitting digital signals over buses and computer program product therefor
    2.
    发明公开
    Process and devices for transmitting digital signals over buses and computer program product therefor 有权
    用于经由计算机总线和计算机程序产品，用于发送数字信号的方法和装置

    公开(公告)号：EP1403774A1

    公开(公告)日：2004-03-31

    申请号：EP02425575.4

    申请日：2002-09-25

    Applicant: STMicroelectronics S.r.l.

    Inventor： Pappalardo, Francesco ,  Notarangelo, Giuseppe

    IPC: G06F13/42 ,  G06F13/40

    CPC classification number: G06F13/4072 ,  G06F13/4213

    Abstract: Digital signals (D) are transmitted on a bus (P) at given instants (..., t-1, t, ...) selectively in a non-encoded format (D(t)) and an encoded format (NOT(D(t))). The decision whether to transmit the signals in non-encoded format or in encoded format is taken according to the operation (106) of comparing the signal (D(t)) to be transmitted on the bus (P) for an instant (t) of the aforesaid given instants with the signal (B(t-1)) used for transmission on the bus (P) for the preceding instant (t-1) among the aforesaid given instants so as to minimize the switching activity (SA) on the bus. The comparison operation (106) is carried out bit by bit in orderly sequence (108) so as to identify, in the context of the signal (D (t) ) to be transmitted on the bus (P) at a given instant (t) and of the signal (B(t-1)) used for transmission on the bus (P) for the given preceding instant (t-1), a first set of bits that are not changed and a second set of bits that are changed. The decision whether to transmit said signals on the bus in non-encoded format (D(t)) or in encoded format (NOT(D(t))) is therefore taken limitedly to the bits of said second set of bits.

    Abstract translation: 该过程涉及通过位有序序列比较位来识别一组位没有发生变化，而另一组位都在信号的情况下改变是在瞬间瞬间preceding-在公共汽车上跨mitted。 在未编码格式和编码格式的信号总线和位的限制的传输决定的。 因此独立权利要求中包括了以下内容：（1）编码器，用于以给定的时刻在总线上传输数字信号（2），用于在总线上接收数字信号发送解码器（3）的计算机程序产品可直接加载到的存储器 计算机，并且包括软件代码部分，用于执行数字信号发送过程。

    Optical bus transmission method
    3.
    发明公开
    Optical bus transmission method 有权
    Übertragungsverfahrenfüreine optische Busleitung

    公开(公告)号：EP1524810A1

    公开(公告)日：2005-04-20

    申请号：EP03425663.6

    申请日：2003-10-13

    Applicant: STMicroelectronics S.r.l.

    Inventor： Pappalardo, Francesco ,  Notarangelo, Giuseppe ,  Visalli, Giuseppe

    IPC: H04L25/49 ,  H04B10/155

    CPC classification number: H04B10/5055 ,  H04B10/503 ,  H04B10/516 ,  H04B10/801 ,  H04L25/4915

    Abstract: In a method for transmitting on an optical connection (16) a sequence of input data (b(t)) comprising first ("1") and second ("0") logic states, there is envisaged the operation of providing an optical source (15) for generating an optical signal to be transmitted on said optical connection (16), said optical source (15) being able to generate optical pulses at the occurrence of said first ("1") logic states. The method comprises the operation of:
          - encoding (470,570) said sequence of input data (b(t)) in an encoded sequence of data (B(t)) prior to transmission on said optical connection (16), where said encoding operation minimizes the first logic states ("1") in said encoded sequence of data (B(t)).
    A preferential application is to optical-fibre communication systems with on-chip integrated buses.

    Abstract translation: 在用于在光学连接（16）上发送包括第一（“1”）和第二（“0”）逻辑状态的输入数据序列（b（t））的方法中，设想提供光源 （15），用于产生要在所述光学连接（16）上传输的光信号，所述光源（15）能够在出现所述第一（“1”）逻辑状态时产生光脉冲。 该方法包括以下操作： - 在所述光学连接（16）上传输之前，在编码的数据序列（B（t））中编码（470,570）所述输入数据序列（b（t）），其中所述编码操作 使所述编码数据序列（B（t））中的第一逻辑状态（“1”）最小化。 优先应用于具有片上集成总线的光纤通信系统。

    Process and devices for transmiting digital signals over buses and computer program product therefor
    5.
    发明公开
    Process and devices for transmiting digital signals over buses and computer program product therefor 有权
    为了满足以上对计算机总线和计算机程序产品的数字信号的方法和装置

    公开(公告)号：EP1403775A1

    公开(公告)日：2004-03-31

    申请号：EP02425576.2

    申请日：2002-09-25

    Applicant: STMicroelectronics S.r.l.

    Inventor： Pappalardo, Francesco ,  Notarangelo, Giuseppe

    IPC: G06F13/42 ,  G06F13/40

    CPC classification number: G06F13/4213 ,  G06F13/4072

    Abstract: Digital signals (D) are transmitted on a bus (P) at given instants (..., t-1, t, ...) selectively in a non-encoded format (D(t)) and an encoded format (NOT(D(t))) so as to minimize the switching activity (SA) on the bus. Given the same value of switching activity (12, 13), the decision whether to transmit the signals in non-encoded format or in encoded format is taken according to the choice of maintaining constant, without transitions, the value of the additional signal (INV), which signals that encoding of the signals transmitted each time has taken place or has been omitted.

    Abstract translation: 该过程涉及在非编码和编码格式的验证条件复发哪个传输总线上在给定时刻给出的总线用于数字信号上相同的开关活性。 传输引起与所述信号相关联是反式mitted在另一个瞬间以保持其逻辑值相对于由用于preceding-即时附加信号假定逻辑值的附加信号。 因此独立权利要求中包括了以下内容：（1）编码器，用于以给定的时刻在总线上传输数字信号（2），用于在总线上接收数字信号的反式mitted一个解码器（3）的计算机程序产品可直接加载到的存储器 包括计算机和软件代码部分，用于执行数字信号发送过程。

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