公开(公告)号：US6134692A

公开(公告)日：2000-10-17

申请号：US44925

申请日：1998-03-20

申请人： Kunihiko Sekiya ,  Katsumi Nitta ,  Hirobumi Karasawa ,  Michiaki Okano ,  Katsuhiko Kuma ,  Kazunori Iwasaki ,  Kensuke Uehara ,  Satoru Hashimoto

发明人： Kunihiko Sekiya ,  Katsumi Nitta ,  Hirobumi Karasawa ,  Michiaki Okano ,  Katsuhiko Kuma ,  Kazunori Iwasaki ,  Kensuke Uehara ,  Satoru Hashimoto

IPC分类号： G01S13/74 ,  G06F11/14 ,  H04L1/16

CPC分类号： G06K7/10029 ,  H04L1/0061

摘要： A control unit transmits address area designation information designating an arbitrary bit position in ID data. At least a response unit transmits a response signal with an error detection code attached to predetermined information in the unique information held in itself by means of a time slot determined by the address area designation information and the ID data of the particular response unit. The control unit checks for the presence or absence of an error of the information in each time that has arrived, fetches only the response signal free of error, and transmits the error presence-absence information indicating the inspection result. Further, in the case where there exists a time slot having an error, the control unit transmits new address area designation information. In the case where an error exists in the time sot used previously by the response unit, the response unit retransmits the response signal in the time slot determined from the new address area designation information and the ID data of the response unit.

摘要翻译： 控制单元发送指定ID数据中的任意比特位置的地址区域指定信息。 至少响应单元通过由地址区域指定信息和特定响应单元的ID数据确定的时隙，发送具有附加到本身保存的唯一信息中的预定信息的错误检测码的响应信号。 控制单元在每次到达时检查是否存在信息的错误，仅获取没有错误的响应信号，并发送指示检查结果的错误存在信息。 此外，在存在具有错误的时隙的情况下，控制单元发送新的地址区域指定信息。 在由响应单元先前使用的时间中存在错误的情况下，响应单元在从新地址区域指定信息和响应单元的ID数据确定的时隙中重发响应信号。

公开(公告)号：US5062035A

公开(公告)日：1991-10-29

申请号：US64652

申请日：1987-06-22

申请人： Shigeaki Tanimoto ,  Tadashi Kayano ,  Hirobumi Karasawa ,  Osamu Yamagishi ,  Tomoo Kunikyo

发明人： Shigeaki Tanimoto ,  Tadashi Kayano ,  Hirobumi Karasawa ,  Osamu Yamagishi ,  Tomoo Kunikyo

IPC分类号： G06F13/372

CPC分类号： G06F13/372

摘要： An improved time slot allocation method for a loop network. Loop networks in which the present invention is applied include a loop-connecting a control station and a number of branch stations. The control and branch stations each have at least one terminal connected thereto such that interstation communication, when demanded by a terminal, is made by passing a frame through the transmission path. The frame includes a synchronization area for indicating the leading end of the frame, a fixed-length control area, and a data area composed of a plurality of time slots. According to the invention, the control and branch stations are each allocated with a predetermined or unique number of time slots to be used by terminals for interstation communication. When a station has its reserve of unused time slots fall below a preset lower limit, the control station supplements time slots from its own reserve. On the other hand, if a station has its reserve exceed a preset upper limit, the station returns the excess time slots to the control station. Thus, wait times for a communication demand before a line connection is established are reduced, with enhanced control station response. Also, efficiency of time slot use is enhanced, with a considerable reduction in call losses.

摘要翻译： 用于环路网络的改进的时隙分配方法。 应用本发明的环路网络包括环路连接控制站和多个分支站。 控制站和分支站各自具有至少一个连接到其上的终端，使得当由终端请求时，通过使帧通过传输路径来进行站间通信。 帧包括用于指示帧的前端的同步区，固定长度的控制区和由多个时隙组成的数据区。 根据本发明，控制站和分支站各被分配有预定或唯一数量的时隙，以由终端用于站间通信。 当车站的未使用时隙的储备量低于预设下限时，控制站从其自己的储备中补充时隙。 另一方面，如果站的预留超过预设的上限，则站返回到控制站的超时隙。 因此，在建立线路连接之前的通信需求的等待时间减少，具有增强的控制站响应。 此外，增强了时隙使用的效率，大大减少了呼叫损失。