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    • 31. 发明申请
    • Multiplexed signal transmitter/receiver, communication system, and multiplexing transmission method
    • 多路复用信号发射机/接收机,通信系统和复用传输方式
    • US20020021720A1
    • 2002-02-21
    • US09859887
    • 2001-05-18
    • Koichiro SetoMasaru Kuriyama
    • H04J003/04
    • H04J3/247
    • To provide a transmitter/receiver and a method for a multiplexing transmission and reception of transmission signals of Gigabit Ethernet, without needing a great buffer memory, nor processes for adding channel identification numbers to frames or for removal, at a multiplexed signal transmitter in which data signals input from a plurality of channels of Gigabit Ethernet are multiplexed to be transmitted, a particular 10-bit data word is transmitted before transmission of a data input from a particular channel, and at a multiplexed signal receiver, the particular channel is identified by the 10-bit data word to be present or not.
    • 为了提供发送器/接收器以及用于复用千兆以太网的传输信号的传输和接收的方法,而不需要大的缓冲存储器,也不用在多路复用的信号发射机处处理用于将信道标识号添加到帧或用于移除的处理,其中数据 从千兆以太网的多个信道输入的信号被多路复用以被发送,在从特定信道输入的数据的传输之前传输特定的10位数据字,并且在复用的信号接收机处,特定信道由 10位数据字要存在或不存在。
    • 33. 发明申请
    • Multiplexer and usage thereof
    • 多路复用器及其使用
    • US20040141532A1
    • 2004-07-22
    • US10746598
    • 2003-12-23
    • Tsutomu ChikazawaKohichiro KajiwaraJunichi Kawano
    • H04J003/04
    • H04J3/047H04J3/1611
    • In a multiplexer and a usage thereof, a higher-order cross-connect of the multiplexer inputs a higher-order synchronous network signal from any of higher-order input channels to be cross-connected to any of higher-order output channels, a lower-order cross-connect inputs a lower-order signal, which can be multiplexed into the higher-order synchronous network signal, from any of lower-order input channels to be cross-connected to any of lower-order output channels, and a part of the higher-order output channels and a part of the lower-order input channels are mutually connected as well as a part of the lower-order output channels and a part of the higher-order input channels are mutually connected.
    • 在多路复用器及其使用中,多路复用器的高阶交叉连接器输入来自任何高阶输入通道的高阶同步网络信号,以交叉连接到任何高阶输出通道,较低级 单级交叉连接从低级输入通道输入可以被多路复用到高阶同步网络信号中的低级信号,以交叉连接到任何低阶输出通道,以及一部分 的高阶输出通道和低阶输入通道的一部分相互连接以及低阶输出通道的一部分,并且一部分较高阶输入通道相互连接。
    • 34. 发明申请
    • Methods and apparatus for statistical multiplexing with distributed multiplexers
    • 分布式多路复用器统计复用的方法和装置
    • US20040090996A1
    • 2004-05-13
    • US10696927
    • 2003-10-30
    • General Instrument Corporation
    • Siu-Wai WuKeith J. KelleyVinh Tran
    • H04J003/04
    • H04N21/2385H04J3/1688H04N21/2365H04N21/23655H04N21/4347H04N21/6377H04N21/658
    • The present invention provides methods and apparatus for statistical multiplexing of a large number of data streams. A plurality of encoders are associated with each first stage multiplexer. Bandwidth allocation among all encoders is controlled by a second stage multiplexer. A bandwidth request message is communicated from each the encoders to the second stage multiplexer. The second stage multiplexer allocates available bandwidth based on the bandwidth request messages. The second stage multiplexer then communicates an allocated bandwidth message to each encoder. Each encoder encodes a data stream in accordance with its allocated bandwidth to provide an encoded data stream. A plurality of the encoded data streams are multiplexed at each first stage multiplexer to provide a multiplexed data stream at a constant data rate. The second stage multiplexer mutiplexes the multiplexed data streams from the first stage multiplexers to provide a multiplexed transport stream.
    • 本发明提供了用于大量数据流的统计复用的方法和装置。 多个编码器与每个第一级多路复用器相关联。 所有编码器之间的带宽分配由第二级多路复用器控制。 带宽请求消息从每个编码器传送到第二级多路复用器。 第二级复用器基于带宽请求消息分配可用带宽。 然后第二级多路复用器将分配的带宽消息传送到每个编码器。 每个编码器根据其分配的带宽对数据流进行编码以提供经编码的数据流。 多个编码数据流在每个第一级多路复用器被多路复用,以一恒定的数据速率提供复用的数据流。 第二级多路复用器将来自第一级多路复用器的多路复用数据流多路复用,以提供复用的传输流。
    • 35. 发明申请
    • Signal switching apparatus and program
    • 信号开关装置和程序
    • US20040066792A1
    • 2004-04-08
    • US10676228
    • 2003-09-30
    • YAMAHA CORPORATION
    • Masaaki Okabayashi
    • H04J003/04
    • H04H60/04
    • A signal switching apparatus is provided which is capable of performing checking in a manner that a plurality of output channels can be discriminated in checking the assignment of the plurality of output channels to buses to which signals are input. A plurality of signals input to a mix bus comprised of six buses are selectively output to two analog outputs in accordance with assignment performed by an output assigning device. First checking signals for three channels among six channels from a first oscillator are directly input to an adjuster, and first checking signals for the rest of the six channels from the first oscillator are input to a signal switching device. Second checking signals for all of three channels from a second oscillator are input to the checking signal switching device. The checking signal switching device selectively outputs the input first or second checking signals to the adjuster. The adjuster selectively outputs the input first and second checking signals to desired buses and at desired volumes in accordance with settings of the adjuster, and the first and second checking signals are output via respective analog outputs in accordance with settings of the output assigning device.
    • 提供了一种信号切换装置,其能够以检查多个输出信道对输入信号的总线的分配来区分多个输出信道的方式进行检查。 根据由输出分配装置执行的分配,输入到由六个总线组成的混合总线的多个信号被选择性地输出到两个模拟输出。 将来自第一振荡器的六个通道中的三个通道的第一检查信号直接输入到调节器,并且首先检查来自第一振荡器的六个通道中的其余部分的信号被输入到信号切换装置。 来自第二振荡器的三通道的第二检查信号被输入到检查信号切换装置。 检查信号切换装置选择性地将输入的第一或第二检查信号输出到调节器。 调节器根据调节器的设置选择性地将输入的第一和第二检查信号输出到期望的总线和期望的体积,并且根据输出分配设备的设置,通过相应的模拟输出输出第一和第二检查信号。
    • 38. 发明申请
    • Analog multiplexer and variable gain amplifier for intermediate frequency applications
    • 用于中频应用的模拟多路复用器和可变增益放大器
    • US20030185250A1
    • 2003-10-02
    • US10114576
    • 2002-04-02
    • Harry S. HarbertsDavid L. GannonRobert E. JohnstonWilliam R. GoyetteColin S. Phan
    • H04J003/04
    • H04B7/082H03G1/0088H03G3/3052
    • A diversity receiver circuit system (10) including a primary channel (20) and a diversity channel (22), where analog input signals are converted to differential signals in both channels (20, 22). The receiver circuit system (10) includes a multiplexer (14) and a variable gain amplifier (12) formed on a single RF integrated circuit chip (16), where the multiplexer (14) is positioned before the amplifier (12). The differential signals in the primary channel (20) and the diversity channel (22) are applied to an amplified path (72, 78) and a non-amplified path (76, 82) in the multiplexer (14). A control signal selects one of the amplified primary channel signal, the non-amplified primary channel signal, the amplified diversity channel signal or the non-amplified diversity channel signal. The selected signal is then applied to a first amplifier stage (88) and a second amplifier stage (96) in the variable gain amplifier (12), where both amplifier stages (88, 96) include an amplified path (90, 98) and a non-amplified path (92, 100).
    • 一种包括主要信道(20)和分集信道(22)的分集接收机电路系统(10),其中模拟输入信号被转换成两个信道(20,22)中的差分信号。 接收器电路系统(10)包括形成在单个RF集成电路芯片(16)上的多路复用器(14)和可变增益放大器(12),其中多路复用器(14)位于放大器(12)之前。 主信道(20)和分集信道(22)中的差分信号被施加到多路复用器(14)中的放大路径(72,78)和非放大路径(76,82)。 控制信号选择放大的主信道信号,非放大的主信道信号,放大的分集信道信号或非放大的分集信道信号之一。 所选择的信号然后被施加到可变增益放大器(12)中的第一放大器级(88)和第二放大级(96),其中两个放大级(88,96)包括放大路径(90,98)和 非放大路径(92,100)。
    • 39. 发明申请
    • Flow control and quality of service provision for frame relay protocols
    • 帧中继协议的流量控制和服务质量提供
    • US20030185249A1
    • 2003-10-02
    • US10109217
    • 2002-03-28
    • Elwyn B. DaviesAndrew D. WallaceBrian Unitt
    • H04J003/04G01R031/08
    • H04L12/40143H04L25/14H04L47/10H04L47/2441H04L47/41Y02D50/30
    • Apparatus and method for providing controlled Quality of Service over Ethernet-like links. Prioritised frames are allocated to transmission queues responsive to their priorities. Each queue has an associated subsidiary Ethernet MAC which transmits frames from its queue subject to a scheduler which selects from the set of MAC's according to a pre-determined algorithm. The multiple logical paths between corresponding pairs of transmitter and receiver subsidiary MAC's are preferably multiplexed over a single physical channel. If congestion occurs at the receiver, then Ethernet PAUSE frames may be sent back to the transmitter, directed to specific subsidiary MAC'snulltypically those with lower prioritynullto suspend transmission from the corresponding queue for a time period indicated in the PAUSE frame. In this way back pressure flow control may be applied selectively to so that large amounts of low priority traffic do not cause unnecessary delays to higher priority traffic.
    • 通过类似以太网的链路提供可控服务质量的装置和方法。 优先级帧根据其优先级分配给传输队列。 每个队列具有相关联的辅助以太网MAC,其根据预定算法从其队列中传送帧,该调度器根据MAC集合进行选择。 发射机和接收机辅助MAC的相应对之间的多个逻辑路径优选地通过单个物理信道多路复用。 如果接收机发生拥塞,则可以将以太网暂停帧发送回发射机,定向到特定辅助MAC(通常是具有较低优先级的MAC),以暂停在暂停帧中指示的时间段内的相应队列的传输。 以这种方式,可以选择性地应用背压流量控制,使得大量的低优先级流量不会对较高优先级的流量造成不必要的延迟。