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Patent Agency Ranking
公开(公告)号：US4319353A
公开(公告)日：1982-03-09
申请号：US126080
申请日：1980-02-29
Applicant: Joseph A. Alvarez, III , John F. Brennen , Robert W. Krug
Inventor： Joseph A. Alvarez, III , John F. Brennen , Robert W. Krug
CPC classification number: H04B7/18523 , H04B7/2121 , H04B7/2643
Abstract: To make the most efficient use of the TDMA frame for a satellite communications network, the assignment of each local station's TDMA burst duration is based on a statistical assessment of the demand by local voice and data ports. Occasionally the actual voice and data port demand at a local station exceeds that station's assigned burst duration so that some of the messages which are ready for transmission cannot be transmitted and may be frozen-out. To avoid or minimize the effects of message freeze-out, the various types of messages are categorized into a hierarchy of priorities for transmission. Messages are divided into four basic types, control signaling messages which cannot be interrupted without loss of system control, high speed data messages whose flow cannot be interrupted without the destruction of data and the need to retransmit them, low speed data messages whose transmission can be deferred for short periods, and voice messages which can be frozen-out to a limited extent without destroying the meaning of the aggregate voice signals.The subject invention deals with the architecture and operation of a digital switch at each local station which enables the messages in each priority level to be assembled in a separate respective threaded list for transmission, with the highest priority messages in the beginning of the burst and the lowest priority at the end of the burst. Thus, if a statistically greater number of messages occur than can be transmitted within the assigned burst period, only the lowest priority messages cannot be sent. A voice port prioritization mechanism is disclosed which increases the priority of voice ports as a function of the duration of their talkspurts, with those voice ports having talkspurts of longer duration being assigned to threaded lists which will be transmitted earlier in the TDMA burst.
Abstract translation: 为了最有效地使用TDMA帧用于卫星通信网络，每个本地站的TDMA突发持续时间的分配基于对本地语音和数据端口的需求的统计评估。 偶尔，本地站的实际语音和数据端口需求超过了该站的分配的突发持续时间，使得准备传输的一些消息不能被发送并且可能被冻结。 为了避免或最小化消息冻结的影响，各种类型的消息被分类为传输优先级的层次。 消息分为四种基本类型，控制信令消息在不丢失系统控制的情况下不能中断，高速数据消息流不能中断而不破坏数据和需要重传，低速数据消息的传输可以是 延迟短时间，语音信息可以在有限的程度上被冻结，而不会破坏总体语音信号的含义。 本发明涉及在每个本地站处的数字交换机的架构和操作，其使得能够将每个优先级中的消息组装在用于传输的单独的相应的线程列表中，在突发的开始中具有最高优先级消息，并且 爆发结束时的最低优先级。 因此，如果统计上更大数量的消息发生在可以在所分配的突发周期内发送的消息，则仅能够发送最低优先级的消息。 公开了一种语音端口优先化机制，其增加了语音端口的优先级，作为它们的话音脉冲的持续时间的函数，其中具有较长持续时间的通话频率的语音端口被分配给将在TDMA突发中较早发送的线程列表。
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2.发明授权
公开(公告)号：US4507781A
公开(公告)日：1985-03-26
申请号：US533035
申请日：1983-09-16
Applicant: Joseph A. Alvarez, III , John F. Brennen , Robert W. Krug , Bruce D. Gobioff , John Shabe
Inventor： Joseph A. Alvarez, III , John F. Brennen , Robert W. Krug , Bruce D. Gobioff , John Shabe
CPC classification number: H04B7/18523 , H04B7/2643
Abstract: A method and apparatus are disclosed for conducting broadcast, multipoint, and conference communications in a TDMA network at various data rates while simultaneously conducting point-to-point communications at other data rates, either between local ports or between geographically remote ports during time intervals within a TDMA burst, which are not necessarily predefined. The disclosed apparatus appends a direct destination address to each point-to-point port communication for transmission over a communications link, to directly address the intended destination port. The disclosed invention appends an indirect destination address to each broadcast communication transmitted over the communications link. A broadcast memory is provided at the receiving end of the communications link, for storing correlated direct addresses which are accessed by the indirect destination addresses, to directly address a plurality of intended destination ports. In this manner, both point-to-point and broadcast-type communications can be carried out for a variety of data rates, during time intervals which are not predetermined within the TDMA burst, and with a high degree of connectivity.
Abstract translation: 公开了一种用于在TDMA网络中以各种数据速率进行广播，多点和会议通信的方法和装置，同时在本地端口之间或在地理上远程端口之间的时间间隔期间以其他数据速率进行点对点通信 TDMA脉冲串，不一定是预定义的。 所公开的装置将直接目的地地址附加到每个点对点端口通信，以便通过通信链路进行传输，以直接寻址预定的目的地端口。 所公开的发明附加了通过通信链路发送的每个广播通信的间接目的地地址。 在通信链路的接收端处提供广播存储器，用于存储由间接目的地地址访问的相关直接地址，以直接寻址多个预期目的地端口。 以这种方式，可以在TDMA突发期间未预定的时间间隔内以及具有高度连通性的时间间隔内针对各种数据速率执行点到点和广播型通信。
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3.发明授权
公开(公告)号：US4330857A
公开(公告)日：1982-05-18
申请号：US126076
申请日：1980-02-29
Applicant: Joseph A. Alvarez, III , Joseph M. Bensadon , John F. Brennen , Robert W. Krug
Inventor： Joseph A. Alvarez, III , Joseph M. Bensadon , John F. Brennen , Robert W. Krug
CPC classification number: H04B7/212
Abstract: The position of a channel of information transmitted from a particular port is varied in response to the changing priority of that port's messages as time passes. Variable priority assignments become necessary when low speed data has been deferred in its transmission until a time just prior to the production of a second unit of data. The effect of changing the priority of deferred data messages in a TDMA burst is to change the relative position of the associated channel within the TDMA burst by means of compiling the address of that message in a higher priority threaded list. The mechanism by which a deferred data message has its priority changed from an initial low value to a subsequent higher value is by measuring the amount of time remaining for retaining a deferred data message relative to the expected time of arrival of the next data message, the impending arrival of a new message causing the priority of the deferred message to be increased, thereby increasing the probability of its successful transmission.
Abstract translation: 响应于随着时间流逝，该端口的消息的优先级改变，从特定端口发送的信息的信道的位置是变化的。 当低速数据在其传输中被推迟到制造第二个数据单元之前的时间时，变量优先级分配就变得必要。 在TDMA突发中改变延迟数据消息的优先级的效果是通过在较高优先级线程列表中编译该消息的地址来改变相关信道在TDMA脉冲串内的相对位置。 将延迟数据消息的优先级从初始低值改变为后续较高值的机制是通过测量相对于下一个数据消息的预计到达时间来保留延迟数据消息的剩余时间量， 即将到来的新消息导致延迟消息的优先级增加，从而增加其成功传输的可能性。
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公开(公告)号：US4320504A
公开(公告)日：1982-03-16
申请号：US128321
申请日：1980-03-07
Applicant: Joseph A. Alvarez, III , Joseph M. Bensadon , John F. Brennen , Norman F. Brickman , Robert W. Krug
Inventor： Joseph A. Alvarez, III , Joseph M. Bensadon , John F. Brennen , Norman F. Brickman , Robert W. Krug
CPC classification number: H04B7/18523 , H04B7/2643
Abstract: The transmission and reception pattern generators are synchronized for all data ports operating at the same data rate throughout an entire TDMA system. This eliminates the necessity for bit stuffing to accommodate non-integral multiple data rate data ports and yet allows data activity compression operations to be carried out.
Abstract translation: 对于在整个TDMA系统中以相同数据速率工作的所有数据端口，发送和接收模式发生器被同步。 这消除了对位填充以适应非整数多个数据速率数据端口的必要性，并且允许执行数据活动压缩操作。
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5.发明授权
公开(公告)号：US4332026A
公开(公告)日：1982-05-25
申请号：US128322
申请日：1980-03-07
Applicant: Joseph A. Alvarez, III , John F. Brennen , Robert W. Krug
Inventor： Joseph A. Alvarez, III , John F. Brennen , Robert W. Krug
CPC classification number: H04J3/1647 , H04B7/212
Abstract: A multiple data rate digital switch for a TDMA communications controller is disclosed which can service a plurality of input/output ports having many different data rates on a time divided basis, either between ports connected to the same controller or between ports connected to different, geographically remote controllers. A transmit burst buffer and a receive burst buffer are connected between the local ports and a TDMA communication link and an intranodal buffer is connected between local ports. All three buffers are accessed by a switch control memory which stores n.sub.i control words for each of the ports which are scanned m times per TDMA frame, there being a frame rate of f frames per second. Thus, the ports are selected and their data is buffered at a rate R.sub.i which is equal to the product of n.sub.i times m times f. In this manner, ports having a variety of data rates can be serviced on a time interleaved basis with maximum connectivity.
Abstract translation: 公开了一种用于TDMA通信控制器的多数据速率数字开关，其可以在连接到同一控制器的端口之间或在连接到不同的地理位置的端口之间按时间划分地服务具有许多不同数据速率的多个输入/输出端口 遥控器。 发送突发缓冲器和接收突发缓冲器连接在本地端口和TDMA通信链路之间，并且内部缓冲器连接在本地端口之间。 所有三个缓冲器都由开关控制存储器访问，开关控制存储器存储针对每TDMA帧扫描m次的每个端口的ni控制字，存在每秒f帧的帧速率。 因此，端口被选择，并且它们的数据以等于ni乘以m次f的乘积的速率Ri被缓冲。 以这种方式，具有各种数据速率的端口可以在具有最大连接性的时间交织的基础上被服务。
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