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31. 发明授权

US5689509A Apparatus and method for packetizing and segmenting MPEG packets 失效
标题翻译：用于打包和分割MPEG分组的装置和方法
公开(公告)号：US5689509A
公开(公告)日：1997-11-18
申请号：US748554
申请日：1996-11-08
申请人： Andre J. Gaytan , Denny Gentry , Rasoul Oskouy
发明人： Andre J. Gaytan , Denny Gentry , Rasoul Oskouy
IPC分类号： G06F13/00 , H04L12/70 , H04L12/951 , H04N7/08 , H04N7/081 , H04N7/24 , H04N19/00 , H04N21/2381 , H04N21/643 , H04Q11/04 , H04J3/00
CPC分类号： H04N21/2381 , H04N21/64307 , H04Q11/0478 , H04L2012/5616 , H04L2012/5652
摘要： A circuit and method for optimizing efficiency in transferring a block of data having a plurality of frames of limited size from a memory element. The circuit comprises a transmit ("TX") DMA engine and a TX Segmentation engine. The TX DMA engine is responsible for accessing overhead information for the block of data within a TX data buffer from a data descriptor dedicated to that particular TX data buffer. The TX DMA engine is further responsible for reading the block of data from the memory element to be stored local thereto. The TX Segmentation engine is responsible for segmenting the block of data into a plurality of cell packets corresponding in number to the plurality of frames. Each cell packet contains in common the overhead information for the block of data to avoid the TX DMA engine re-accessing the data descriptor to obtain the same overhead information for each frame being transferred.
摘要翻译：一种用于优化从存储元件传送具有有限尺寸的多个帧的数据块的效率的电路和方法。该电路包括发送（“TX”）DMA引擎和TX分段引擎。 TX DMA引擎负责从专用于该特定TX数据缓冲器的数据描述符中访问TX数据缓冲器内的数据块的开销信息。 TX DMA引擎还负责从本地存储的存储器元件读取数据块。 TX分段引擎负责将数据块分割成与多个帧相对应的多个信元分组。每个单元包共同地包含用于数据块的开销信息，以避免TX DMA引擎重新访问数据描述符，以便为每个被传送的帧获得相同的开销信息。

32. 发明授权

US5648963A Input and output side conversion interfaces for an ATM exchange 失效
标题翻译：用于ATM交换的输入和输出侧转换接口
公开(公告)号：US5648963A
公开(公告)日：1997-07-15
申请号：US957173
申请日：1992-10-07
申请人： Hiroshi Miyake , Yasuhiro Aso , Shuji Yoshimura
发明人： Hiroshi Miyake , Yasuhiro Aso , Shuji Yoshimura
IPC分类号： H04L12/931 , H04L12/951 , H04Q11/04 , H04L12/28
CPC分类号： H04L12/5601 , H04L49/106 , H04L49/1553 , H04L49/3081 , H04Q11/0478 , H04L2012/5605 , H04L2012/5652
摘要： An ATM exchange which is comprised of a multistage cascade connection of ATM switches of self-routing module structures which are provided with a plurality of outgoing lines and incoming lines, wherein it provides at the output side and the input side of the ATM switches output side conversion interfaces and input side conversion interfaces both for connection of adjoining ATM switches and uses optical cables to connect the output side interfaces and input side interfaces facing thereto. By this, it is possible to maintain the correct exchange operation even if the length of the transfer lines (outgoing lines and incoming lines) laid between ATM switches becomes greater along with extension of the ATM switches in the exchange.
摘要翻译：一种ATM交换机，其由具有多条出线和输入线的自路由模块结构的ATM交换机的多级级联连接组成，其中ATM交换机在ATM交换机输出侧的输出侧和输入侧提供转换接口和输入侧转换接口，用于连接相邻的ATM交换机，并使用光缆连接输出侧接口和面向其的输入侧接口。由此，即使在ATM交换机之间铺设的传送线（出线和输入线）的长度随着交换机中ATM交换机的扩展而变大，也可以保持正确的交换操作。

33. 发明授权

US5623493A Multiplexer demultiplexer switching device and network adapter 失效
标题翻译：多路复用器解复用器切换设备和网络适配器
公开(公告)号：US5623493A
公开(公告)日：1997-04-22
申请号：US416213
申请日：1995-04-04
申请人： Tetsuya Kagemoto
发明人： Tetsuya Kagemoto
IPC分类号： H04Q3/00 , H04J3/24 , H04L12/46 , H04L12/801 , H04L12/911 , H04L12/951 , H04Q11/04 , H04L12/56
CPC分类号： H04L49/3081 , H04J3/247 , H04L12/5601 , H04L49/206 , H04J2203/0089 , H04L2012/5652 , H04L2012/5672 , H04L49/30
摘要： When cells inputted from an incoming line (30) are demultiplexed cells for transmitting voice signals, a demultiplexer (31) extracts the signals from the cells and distributes the same to lines (33.sub.1 to 33.sub.n) corresponding to virtual channel identifiers of the cells, while distributing other cells to a line (33.sub.0) as such in other case. A multiplexed cell generator (35) reads a plurality of signals passing through FIFOs (34.sub.1 to 34.sub.n) in a cycle of 125 .mu.sec., and stores the same in an information field of a multiplexed cell. A demultiplexer (39) preferentially outputs the cell of the line (33.sub.0) to an outgoing line (310), while inserting a multiplexed cell passing through an FIFO (38) in a vacant cell caused in the line (33.sub.0) and outputting the same to the outgoing line (310). Thus, voice signals of a plurality of virtual channels are multiplexed in a transmission path on the outgoing line side, whereby waste of the band is reduced. It is possible to effectively use bands of a network in transmission of voice signals.
摘要翻译：当从输入线路（30）输入的小区被解复用用于发送语音信号的小区时，解复用器（31）从小区提取信号并将其分配给与小区的虚拟信道标识符对应的线路（331至33n），同时在其他情况下将其它单元分配到线路（330）。多路复用单元发生器（35）以125μs的周期读取通过FIFO（341〜34n）的多个信号，并将其存储在复用单元的信息区中。解复用器（39）优先地将线路（330）的单元输出到输出线路（310），同时将通过FIFO（38）的多路复用单元插入在线路（330）中引起的空闲单元并输出到出线（310）。因此，多个虚拟信道的语音信号被复用在出线侧的传输路径中，从而减少了频带的浪费。有可能在语音信号传输中有效地使用网络频带。

34. 发明授权

US5619499A Protocol processor in communication network transferring data in asynchronous transfer mode 失效
标题翻译：通信网络中的协议处理器以异步传输模式传输数据
公开(公告)号：US5619499A
公开(公告)日：1997-04-08
申请号：US439751
申请日：1995-05-12
申请人： Takeo Nakabayashi
发明人： Takeo Nakabayashi
IPC分类号： H04L29/06 , H04L12/935 , H04L12/951 , H04Q11/04 , H04J3/16
CPC分类号： H04Q11/0478 , H04L2012/5616 , H04L2012/563
摘要： A plurality of ATM layer receiving blocks to which different applications are allocated are provided for a physical layer receiving part receiving data from an ATM transmission line and carrying out prescribed physical layer processing. The plurality of ATM layer receiving blocks incorporate data from the physical layer receiving allocated thereto are supplied to execute prescribed ATM block only when data utilized by the applications layer processing, for transmitting the processed data to corresponding higher layer processing functional blocks. A plurality of ATM layer transmission blocks responsible for different applications are provided in parallel with each other and coupled to a common ATM layer transmission block for data communication between a terminal and a network data transmission line. Thus implemented is a generic interface between an ATM layer and a physical layer in a terminal-to-network interface unit in a network in which data communication is carried out in an asynchronous transfer mode.
摘要翻译：为从ATM传输线接收数据的物理层接收部分提供分配了不同应用的多个ATM层接收块，并进行规定的物理层处理。多个ATM层接收块结合来自分配给它的物理层接收数据的数据被提供来执行规定的ATM块，只有当应用层使用的数据处理时，才将处理的数据发送到对应的较高层处理功能块。负责不同应用的多个ATM层传输块彼此并行地提供并且耦合到公共ATM层传输块，用于终端和网络数据传输线之间的数据通信。如此实现的是在异步传送模式下进行数据通信的网络中的终端到网络接口单元中的ATM层与物理层之间的通用接口。

35. 发明授权

US5617424A Method of communication between network computers by dividing packet data into parts for transfer to respective regions 失效
标题翻译：网络计算机之间通过将分组数据分割成各个区域进行传送的方法
公开(公告)号：US5617424A
公开(公告)日：1997-04-01
申请号：US642666
申请日：1996-05-03
申请人： Hideki Murayama , Satoshi Yoshizawa , Hidenori Inouchi , Takeshi Aimoto , Takehisa Hayashi , Hiroshi Iwamoto
发明人： Hideki Murayama , Satoshi Yoshizawa , Hidenori Inouchi , Takeshi Aimoto , Takehisa Hayashi , Hiroshi Iwamoto
IPC分类号： G06F13/00 , G06F15/173 , H04L12/02 , H04L12/951 , H04L29/02 , H04L29/06 , H04L29/14 , H04J3/24
CPC分类号： H04L49/9042 , H04L29/06 , H04L47/10 , H04L47/32 , H04L49/3009 , H04L49/557 , H04L49/90 , H04L49/901 , H04L49/9047 , H04L49/9057 , H04L49/9063 , H04L63/0236 , H04L69/22 , H04L69/40
摘要： The present invention relates to a network communication method and a network system that enables received data to be transferred directly to the user data region, thereby eliminating the need to perform data copy operations. In the present invention, packets are each provided with received region assignment information (port ID) for showing the region in which the packet is to be received and/or division information for dividing the packet. The region which is to receive data contained in the packet is determined from a port table and conversion tables, and the packet data is transferred to the region directly.
摘要翻译：网络通信方法和网络系统技术领域本发明涉及一种网络通信方法和网络系统，其能够将接收的数据直接传送到用户数据区域，从而不需要进行数据复制操作。在本发明中，分组具有用于表示要接收分组的区域的接收区域分配信息（端口ID）和/或划分分组的划分信息。从端口表和转换表确定要接收包中包含的数据的区域，并且分组数据直接传送到该区域。

36. 发明授权

US5594724A Transmission convergence sublayer multiplex generating/terminating apparatus 失效
标题翻译：发送汇聚子层复用生成/终端装置
公开(公告)号：US5594724A
公开(公告)日：1997-01-14
申请号：US522555
申请日：1995-09-01
申请人： Masao Akata , Takao Miura , Takeshi Ogawa , Yukihiro Doi , Isao Higashi , Hitoshi Imagawa
发明人： Masao Akata , Takao Miura , Takeshi Ogawa , Yukihiro Doi , Isao Higashi , Hitoshi Imagawa
IPC分类号： H04Q3/00 , H04J3/00 , H04J3/16 , H04L12/64 , H04L12/951 , H04Q11/04 , H04L12/66
CPC分类号： H04Q11/0478 , H04J3/1611 , H04J2203/0089 , H04L2012/5647 , H04L2012/5673
摘要： A transmission convergence sublayer multiplex generating apparatus includes a TC layer calculating section, a TC layer information storing section for storing TC layer information in correspondence with each path, and an ATM layer information storing section for storing ATM layer information in correspondence with each path. The TC layer calculating section includes a section for, when receiving an ATM layer cell, storing the ATM layer cell in the ATM layer information storing section corresponding to a path number on the basis of header information of the ATM layer cell, and for, when receiving a TC layer information read request for each path through a control line, generating header error control information and scrambling the payload portion by time division multiplex processing using the ATM layer information of the corresponding path which is stored in the ATM layer information storing section to generate TC layer information, storing the TC layer information in the TC layer information storing section of the corresponding path, and outputting the TC layer information of the corresponding path to the TC layer information output line. A transmission convergence sublayer multiplex terminating apparatus is also disclosed.
摘要翻译：发送汇聚子层多路复用生成装置包括：TC层计算部，与每个路径对应地存储TC层信息的TC层信息存储部，以及与各路对应地存储ATM层信息的ATM层信息存储部。 TC层计算部分包括一个部分，用于当接收到一个ATM层信元时，根据ATM层信元的报头信息将ATM层信元存储在与ATM数据信道对应的ATM层信息存储部分中，通过控制线路接收每个路径的TC层信息读取请求，通过使用存储在ATM层信息存储部分中的对应路径的ATM层信息的时分多路复用处理产生报头错误控制信息和加扰有效负载部分，生成TC层信息，将TC层信息存储在对应路径的TC层信息存储部中，并将对应路径的TC层信息输出到TC层信息输出行。还公开了一种传输汇聚子层复用终端设备。

37. 发明授权

US5577038A Digital communication path network having time division switches and a cell switch 失效
标题翻译：具有时分开关和单元开关的数字通信路径网络
公开(公告)号：US5577038A
公开(公告)日：1996-11-19
申请号：US351513
申请日：1994-12-07
申请人： Keiichi Miyahara
发明人： Keiichi Miyahara
IPC分类号： H04Q3/00 , H04L12/18 , H04L12/70 , H04L12/931 , H04L12/951 , H04Q3/52 , H04L12/56
CPC分类号： H04L12/18 , H04L49/201 , H04L2012/5642 , H04L49/254 , H04L49/3009
摘要： A digital communication path network includes a first time division switch for producing a first time division multiplexed transmission signal, a cell assembly section for generating a broadcasting cell address, and for forming a cell from the transmission signal and the broadcasting cell address, a cell switch for transferring the cell from the cell assembly means to a plurality of output ports in accordance with the broadcasting cell address, a plurality of cell disassembly units respectively connected to the plurality of output ports, each for disassembling the cell, a plurality of second time division switches respectively connected to the plurality of cell disassembly units, each for producing a second time division multiplexed transmission signal from the disassembled cell in response to a time slot control instruction and a control section for selectively issuing the time slot control instruction to each of the plurality of second time division switches based on a communication path connection information for each of the plurality of second time division switches.
摘要翻译：数字通信路径网络包括用于产生第一时分复用传输信号的第一时分开关，用于产生广播小区地址的小区组合部分，以及用于从传输信号和广播小区地址形成小区，小区切换用于根据广播单元地址将单元从单元组合装置传送到多个输出端口;分别连接到多个输出端口的多个单元拆卸单元，每个单元拆卸单元分别用于拆卸单元;多个第二时间分割分别连接到多个单元拆卸单元的开关，每个单元用于响应于时隙控制指令从解体单元产生第二时分多路复用传输信号，以及用于选择性地向多个单元中的每一个发布时隙控制指令的控制单元的基于通信的第二分时开关用于多个第二时分交换机中的每一个的路径连接信息。

38. 发明授权

US5570362A System for transferring variable length cells under ATM 失效
标题翻译：用于在ATM下传输可变长度单元的系统
公开(公告)号：US5570362A
公开(公告)日：1996-10-29
申请号：US389284
申请日：1995-02-16
申请人： Takashi Nishimura
发明人： Takashi Nishimura
IPC分类号： H04Q3/00 , H04L12/70 , H04L12/931 , H04L12/951 , H04L12/955 , H04Q3/52 , H04Q11/04 , H04L12/56
CPC分类号： H04L12/5601 , H04L49/3081 , H04L49/608 , H04Q11/0478 , H04L2012/5647 , H04L2012/5652 , H04L2012/5653 , H04L2012/5674 , H04L2012/5681 , H04L7/048
摘要： A system for transferring variable length cells in an ATM, wherein an ATM layer composes variable length ATM cells by an n-octet header and an ATM cell payload of a length of a whole multiple m (m.gtoreq.1) of the minimum unit of transfer, using as a minimum unit of transfer a length of n (8.gtoreq.n.gtoreq.6) octets, stores in the payload the information generated from a higher layer adjusted to a length of a whole multiple of the minimum unit of transfer, and sets in the header data indicating the length of the variable length cell. The adjustment is performed by a higher ATM adaptation layer which adds ineffective data to the SAR-protocol data unit (SAR-PDU) including the header and trailer so the SAR-PDU becomes a whole multiple of the n-octets. A region provided in the trailer of the SAR-PDU in the layer to indicate the length of the effective data in the payload is set with the number of octets remaining after division of the number of octets of the effective data in the payload by 44. By this, it is possible to make efficient use of transmission channels by maintaining the user information, generated in bursts of information, at a constant, optimal length.
摘要翻译：一种用于在ATM中传送可变长度单元的系统，其中ATM层通过n字节头部和最小单位的整数m（m> / = 1）的长度的ATM信元有效载荷来组合可变长度的ATM信元的传输，使用n（8> / = n> / = 6）个字节的长度的最小传送单位，在有效载荷中存储从较高层生成的信息，其被调整为最小单位的整数倍的长度并且在表示可变长度单元的长度的标题数据中设置。该调整由更高的ATM适配层执行，其将无效数据添加到包括报头和报尾的SAR协议数据单元（SAR-PDU），使得SAR-PDU变为n个八位字节的整数倍。在有效载荷中的有效数据的字节数除以44之后，在该层中设置在SAR-PDU的尾部中指示有效数据的长度的区域被设置为剩余的八位位组数。由此，可以通过将以信息突发生成的用户信息保持在恒定的最佳长度来有效地利用传输信道。

39. 发明授权

US5461626A Method and apparatus for multiplexing digital signal 失效
标题翻译：用于复用数字信号的方法和装置
公开(公告)号：US5461626A
公开(公告)日：1995-10-24
申请号：US82015
申请日：1993-06-25
申请人： Akihiko Takase , Shirou Tanabe
发明人： Akihiko Takase , Shirou Tanabe
IPC分类号： H04L5/22 , H04J3/24 , H04L12/951 , H04Q11/04
CPC分类号： H04J3/247 , H04Q11/0478 , H04L2012/5672
摘要： A digital signal multiplexing method and apparatus include statistically multiplexing packet signals which are transferred through first circuits having a first speed to a second circuit having a second speed, the second speed being higher than the first speed. The method includes the steps of dividing the signal transmitted to the second circuit into a plurality of circuit management units, distributing the packet signals to the plurality of circuit management units and transmitting on a packet unit basis, dividing the multiplexing packet signals which were statistically multiplexed to the second circuit into receiving circuit management units corresponding to the plurality of circuit management units, and generating the received packet signals included in the receiving circuit management units corresponding to the first circuits.
摘要翻译：数字信号复用方法和装置包括将通过具有第一速度的第一电路传送的分组信号统计复用到具有第二速度的第二电路，第二速度高于第一速度。该方法包括以下步骤：将发送到第二电路的信号划分成多个电路管理单元，将分组信号分配到多个电路管理单元，并以分组单元为基础进行分组，将经过统计复用的复用分组信号将所述第二电路转换为与所述多个电路管理单元对应的接收电路管理单元，并且生成包含在与所述第一电路对应的所述接收电路管理单元中的接收分组信号。

40. 发明授权

US5425023A Network system and method of managing a maximum transfer unit in the network system 失效
标题翻译：网络系统和管理网络系统中最大传输单元的方法
公开(公告)号：US5425023A
公开(公告)日：1995-06-13
申请号：US912706
申请日：1992-07-13
申请人： Masahiko Haraguchi , Atsushi Kobayashi , Toru Horimoto , Itaru Isobe
发明人： Masahiko Haraguchi , Atsushi Kobayashi , Toru Horimoto , Itaru Isobe
IPC分类号： H04L12/66 , H04L12/741 , H04L12/951 , H04J3/24 , H04L12/56
CPC分类号： H04L47/10 , H04L12/66 , H04L47/36
摘要： A method of managing, in a network system having at least two end systems, at least two networks respectively connected to the at least two end systems and at least one transfer device for connecting the networks and transferring data between the networks, a maximum transfer unit of one unit of data transferred at time on a transfer route connected between the two end systems and including the networks and the transfer device. A table is provided having information about the transfer route in each of the end systems and the transfer device, and an optimum value of maximum data lengths of the one unit of data which are transferable on the transfer route is registered, as the maximum transfer unit for the transfer device, in each of the tables. In particular, the optimum value is a minimum value of maximum data lengths of the one unit of data which are transferable through each of the networks on the transfer route.
摘要翻译：一种在具有至少两个终端系统的网络系统中管理分别连接到所述至少两个终端系统的至少两个网络和用于连接所述网络并在所述网络之间传送数据的至少一个传输设备的方法，所述最大传输单元在连接在两个终端系统之间并且包括网络和传送设备的传输路由上传输的一个单元的数据单元。提供具有关于每个终端系统和传送装置中的传送路线的信息的表格，并且登记可在传送路线上传送的一个单位数据的最大数据长度的最佳值作为最大传送单元用于传送设备，在每个表中。特别地，最佳值是可以通过传输路线上的每个网络传送的一个单位数据的最大数据长度的最小值。

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