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    • 3. 发明授权
    • Signal transmission system for high speed serial bus
    • 高速串行总线信号传输系统
    • US06169746A
    • 2001-01-02
    • US09174400
    • 1998-10-14
    • Toru UedaKazuyuki SumiTakashi NishimuraHirohisa Wakai
    • Toru UedaKazuyuki SumiTakashi NishimuraHirohisa Wakai
    • H04J316
    • H04L12/40117H04L5/1461
    • Between two nodes, data in the form of two different signals are transmitted bidirectionally, in accordance with IEEE1394 through one optical fiber cable. At the time of data transmission, data of two different signals is converted to data of one type of signal at one node, and transmitted to the optical fiber cable, and at the other node, the data received from the optical fiber cable is converted to the original data of two different signals, and transmitted to a subsequent processing circuit in accordance with IEEE1394. At this time, in a transmission sequence for requesting and granting priority of transmission over the optical fiber cable between both nodes, the priority of transmission is granted alternately to both nodes.
    • 在两个节点之间,按照IEEE1394通过一条光纤电缆双向传输两种不同信号形式的数据。 在数据传输时,两个不同信号的数据在一个节点被转换成一种类型的信号的数据,并传输到光纤电缆,另一个节点将从光纤电缆接收的数据转换为 两个不同信号的原始数据,并根据IEEE1394传输到后续处理电路。 此时,在用于请求和授予在两个节点之间的光纤电缆的传输优先级的传输序列中,传输的优先级被交替地授予两个节点。
    • 9. 发明授权
    • Transmission method and device
    • 传输方式和装置
    • US06980616B1
    • 2005-12-27
    • US09889155
    • 2000-01-17
    • Daisuke NakanoTakashi NishimuraYuji IchikawaMasafumi TakahashiKazuyuki SumiToru Ueda
    • Daisuke NakanoTakashi NishimuraYuji IchikawaMasafumi TakahashiKazuyuki SumiToru Ueda
    • H04B7/212H04L1/00H04L7/02H04L7/04H04L7/06
    • H04L7/0066H04J3/0685H04L1/0025H04L7/04
    • A transmission method uses multiple kinds of control codes to be exchanged on a serial transmission path between a sender side and a receiver side, and each of the multiple kinds of control codes has bits smaller in number than a predetermined fixed length. The transmission method includes the steps of inspecting the received bit string in groups of bits of the number of the control code, and thereby determining whether one of the multiple kinds of control codes is present in the serial signal received on the serial transmission path or not, selecting the control code to be sent based on a result of the determination in the determining step, sending, onto the serial transmission path, a bit string containing at least the control code to be sent based on the result of the determination in the determining step, and receiving the data code by inspecting the received bit string in groups of bits of the fixed length in response to the detection of the control code indicating the start of transmission of the data from the opposite side in the determining step.
    • 传输方法使用多种控制码在发送机侧和接收机侧之间的串行传输路径上进行交换,并且多种控制码中的每一种的数目比预定的固定长度小。 发送方法包括以下步骤:以控制码数目的比特组检查接收到的比特串,从而确定在串行传输路径上接收的串行信号中是否存在多种控制码中的一种控制码 基于所述确定步骤中的确定结果来选择要发送的控制代码,基于所述确定中的确定结果,将至少包含要发送的控制代码的比特串发送到所述串行传输路径上 响应于在确定步骤中检测到指示来自相反侧的数据的传输的控制码的检测,通过检查固定长度的比特组的接收的比特串来接收数据代码。
    • 10. 发明授权
    • Method and apparatus for transmitting packet for synchronization using half duplex transmission medium
    • 使用半双工传输介质发送用于同步的分组的方法和装置
    • US06804205B1
    • 2004-10-12
    • US09578690
    • 2000-05-26
    • Takashi NishimuraYuji IchikawaDaisuke NakanoKazuyuki SumiToru Ueda
    • Takashi NishimuraYuji IchikawaDaisuke NakanoKazuyuki SumiToru Ueda
    • H04L516
    • H04J3/0632H04J3/0638H04L5/16
    • A method of half duplex transmission of a packetized digital data includes the steps of inputting a new packet to be transmitted to a first-in-first-out storage, determining whether the new packet contains time information related to synchronization with other electronic device, responsive to the determination that the new packet contains time information, updating a local timer of the electronic device with a prescribed value, continuously incrementing the local timer, responsive to a timing enabling transmission of the new packet by the transmitting/receiving unit of the electronic device, reading the new packet from the first-in-first-out storage, determining whether the new packet contains time information or not, changing the time information by using a value of the local timer to prevent mismatch in synchronization with other electronic device, and outputting to the bus through the transmitting/receiving unit.
    • 打包数字数据的半双工传输的方法包括以下步骤:将要发送的新分组输入到先进先出存储,确定新分组是否包含与其他电子设备同步相关的时间信息,响应 为了确定新分组包含时间信息,以规定值更新电子设备的本地定时器,响应于能够由电子设备的发送/接收单元传输新分组的定时,连续递增本地定时器 从先入先出存储读取新分组,确定新分组是否包含时间信息,通过使用本地定时器的值来改变时间信息,以防止与其他电子设备同步的失配,以及 通过发送/接收单元向总线输出。