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    Collision avoiding system and protocol for a two path multiple access digital communications system
    1.
    发明授权
    Collision avoiding system and protocol for a two path multiple access digital communications system 失效
    用于双路多址数字通信系统的碰撞避免系统和协议

    公开(公告)号：US4532626A

    公开(公告)日：1985-07-30

    申请号：US399428

    申请日：1982-07-19

    申请人： Christopher Flores ,  Bhaskarpillai Gopinath ,  John O. Limb

    发明人： Christopher Flores ,  Bhaskarpillai Gopinath ,  John O. Limb

    IPC分类号： H04L12/417 ,  H04J3/02 ,  H04J3/00 ,  H04J6/00

    CPC分类号： H04L12/417

    摘要： In order to control the transfer of packets of information among a plurality of stations, e.g., digital computers, the instant communications system, station and protocol contemplate first and second oppositely directed signal paths. At least two stations are coupled to both the first and the second signal paths. A station includes arrangements for reading one signal from the first path and for writing another signal on the first path. The one signal is read from the first path by an arrangement which electrically precedes the arrangement for writing the other signal on the first path. A similar read arrangement is electrically preceding a write arrangement on the second path. If the station has a packet to transmit, it can overwrite a busy control field of the one signal packet on either path. Having read the one signal on the path, a logical interpretation may be made within the station as to whether the path is busy or is not busy. If the path is not busy, the packet may be written on the path by overwriting any signal thereon. If the path is busy, the station may defer the writing until the path is detected as not busy through a busy control field. The packets flow down the path to a destination station. Eventually all packets will be transmitted and the busy control field may be detected at an end station for indicating the event that all packets have been transmitted. The end station on one path acts as the head station on the other oppositely directed path. Hence, responsive to detecting that all packets have been transmitted, the head station on the other path may transmit an end cycle packet, responsive to which event a new cycle may be started by initializing each station on the one path and by permitting each initialized station to transmit.

    摘要翻译： 为了控制多个站（例如数字计算机）之间的信息包的传送，即时通信系统，站和协议考虑第一和第二相反方向的信号路径。 至少两个站耦合到第一和第二信号路径两者。 站包括用于从第一路径读取一个信号并在第一路径上写入另一个信号的布置。 通过在第一路径上写入另一信号的布置之前的布置从第一路径读取一个信号。 类似的读取布置在第二路径上的写入布置之前。 如果站具有要发送的数据包，则可以覆盖任一路径上的一个信号包的繁忙控制字段。 在路径上读取了一个信号后，可以在站内进行关于路径是忙还是不忙的逻辑解释。 如果路径不忙，则可以通过在其上覆盖任何信号将路径写入路径。 如果路径正忙，则站可能推迟写入，直到通过忙控制字段检测到路径不忙。 数据包流向目的站的路径。 最终将发送所有分组，并且可以在终端站检测忙控制字段，以指示所有分组已经被发送的事件。 一个路径上的终端站作为另一个相对定向路径上的头站。 因此，响应于检测到所有分组已经被发送，另一路径上的头站可以发送结束周期分组，响应于哪个事件可以通过在一个路径上初始化每个站并且通过允许每个初始化的站来启动新的周期 发送。

    Shared data transmission system
    2.
    发明授权
    Shared data transmission system 失效
    共享数据传输系统

    公开(公告)号：US4698804A

    公开(公告)日：1987-10-06

    申请号：US693512

    申请日：1985-01-22

    申请人： Christopher Flores ,  Bhaskarpillai Gopinath

    发明人： Christopher Flores ,  Bhaskarpillai Gopinath

    IPC分类号： H04L12/433 ,  H04J3/08 ,  H04J3/24

    CPC分类号： H04L12/433

    摘要： A digital transmission system includes a plurality of stations sharing a common transmission line. Variable length messages, set off by flags, are exchanged between pairs of stations. While a message is being received, the downstream portion of the transmission line is segmented to permit simultaneous use by another station pair. If a message is received from an upstream station while a message is being transmitted downstream, an abort message flag terminates the transmitted message abruptly to permit flowthrough of the received message. When any station is not in use or out of order, it is bypassed to permit use of the transmission line by the rest of the stations.

    摘要翻译： 数字传输系统包括共享公共传输线的多个站。 由标志引起的可变长度消息在站对之间交换。 当接收到消息时，传输线的下游部分被分段以允许另一个站对同时使用。 如果在下游发送消息时从上游站接收到消息，则中止消息标志突然终止发送的消息，以允许所接收消息的穿越。 当任何电台不使用或不按顺序时，它被旁路以允许其余电台使用传输线。

    Wireless communication system
    9.
    发明授权
    Wireless communication system 失效
    无线通信系统

    公开(公告)号：US5258995A

    公开(公告)日：1993-11-02

    申请号：US789292

    申请日：1991-11-08

    申请人： Chun-Meng Su ,  Saman Behtash ,  Keith Jarett ,  Huihung Lu ,  Christopher Flores ,  David G. Messerschmitt

    发明人： Chun-Meng Su ,  Saman Behtash ,  Keith Jarett ,  Huihung Lu ,  Christopher Flores ,  David G. Messerschmitt

    IPC分类号： H03M5/14 ,  H03M13/31 ,  H04J1/12 ,  H04J3/06 ,  H04J13/16 ,  H04L25/49 ,  H04M1/725 ,  H04K1/00

    CPC分类号： H04J1/12 ,  H03M13/31 ,  H03M5/145 ,  H04J3/0605 ,  H04L25/4908 ,  H04M1/72502 ,  H04J13/16

    摘要： In the present invention a wireless communication system is disclosed. A base unit communicates with a remote unit. The system comprises means for transmitting, using CDMA, between the base unit and the remote unit, in one of a plurality of frequencies channels selected. In one period of time, the base unit transmits and in another period of time, different from the one period, the remote unit transmits. Further, the system comprises means for changing the one frequency channel selected to another frequency channel, different from the one frequency channel, in response to interference in the one frequency channel. Thus, communication between the base unit and the remote unit is then affected over the another frequency channel.

    摘要翻译： 在本发明中，公开了一种无线通信系统。 基本单元与远程单元通信。 该系统包括用于在所选择的多个频率信道之一中使用CDMA在基本单元和远程单元之间进行发送的装置。 在一个时间段内，基站单元在远程单元发送的另一个时间段内发送不同于一个周期的时间段。 此外，该系统包括用于响应于一个频率信道中的干扰而将选择的一个频率信道改变为与一个频率信道不同的另一频率信道的装置。 因此，基本单元和远程单元之间的通信然后在另一频率信道上受到影响。

    Method and an apparatus for re-establishing wireless communication between a base unit and a remote unit
    10.
    发明授权
    Method and an apparatus for re-establishing wireless communication between a base unit and a remote unit 失效
    用于在基本单元和远程单元之间重新建立无线通信的方法和装置

    公开(公告)号：US5212808A

    公开(公告)日：1993-05-18

    申请号：US789736

    申请日：1991-11-08

    申请人： Chun-Meng Su ,  Keith Jarett ,  Christopher Flores

    发明人： Chun-Meng Su ,  Keith Jarett ,  Christopher Flores

    IPC分类号： H03M5/14 ,  H03M13/31 ,  H04L25/49 ,  H04M1/725

    CPC分类号： H03M5/145 ,  H03M13/31 ,  H04L25/4908 ,  H04M1/72502

    摘要： In the present invention a method of re-establishing a wireless communication after a communication break is disclosed. Prior to the communication break, a base unit transmits to a remote unit a table of channels of communication to be used. The base unit also transmits a clock signal value to the remote unit. After a communication break, the remote unit continues to count the clock signals generated from a clock signal source internal thereto. The remote unit applies a function to the value of the clock signal to obtain an entry in the table. The channel of communication associated with the entry in the table is selected by the remote unit. The base unit continues to count the clock signals generated internal thereto. The base unit applies the same function as the function used by the remote unit to the value of the clock signal to obtain an entry in the table. The base unit selects the channel of communication associated with the entry in the table. Thereafter, communication is re-established over the channel of communication associated with the entry in the table.

    摘要翻译： 在本发明中，公开了在通信中断之后重新建立无线通信的方法。 在通信中断之前，基站单元向远程单元发送要使用的通信信道的表。 基本单元还向远程单元发送时钟信号值。 在通信中断之后，远程单元继续对从其内部的时钟信号源产生的时钟信号进行计数。 远程单元对时钟信号的值应用功能，以获得表中的条目。 与表中的条目相关联的通信通道由远程单元选择。 基本单元继续对其内部产生的时钟信号进行计数。 基本单元将与远程单元使用的功能相同的功能应用于时钟信号的值，以获得表中的条目。 基本单元选择与表中的条目相关联的通信信道。 此后，通过与表中的条目相关联的通信信道重新建立通信。