专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US5517490A Telecommunication terminal operating at alternative data throughput rates 失效
标题翻译：以替代数据吞吐率运行的电信终端
公开(公告)号：US5517490A
公开(公告)日：1996-05-14
申请号：US244504
申请日：1994-10-13
申请人： Philippe Charbonnier , Pierre Deliveyne , Louis B. Omgba
发明人： Philippe Charbonnier , Pierre Deliveyne , Louis B. Omgba
IPC分类号： H04N1/32 , H04J3/16 , H04L25/05 , H04L29/08 , H04M3/00 , H04M11/00 , H04N1/333 , H04Q11/04 , H04L7/04
CPC分类号： H04N1/333 , H04J3/1635 , H04L25/05 , H04Q11/0471 , H04Q2213/179 , H04Q2213/214 , H04Q2213/216 , H04Q2213/297 , H04Q2213/31 , H04Q2213/363
摘要： A switchable data rate ISDN terminal for group G.sub.4 facsimile operations disclosed. A decoder in the terminal automatically responds to a hexadecimal 7F formed by an extra bit added to the HDLC communications-starting flag when a 64 kb/s system transmits a 56 kb/s communication. The decoder responds by causing a speed controller in the terminal to reduce the effective data transfer rate.
摘要翻译： PCT No.PCT / FR92 / 01103 Sec。 371日期：1994年10月13日 102（e）日期1994年10月13日PCT提交1992年11月26日PCT公布。公开号WO93 / 11628 日期：1993年6月10日。公开了用于G4组传真操作的可切换数据速率ISDN终端。当64kb / s系统发送56kb / s通信时，终端中的解码器自动响应由添加到HDLC通信开始标志的额外位形成的十六进制7F。解码器通过使终端中的速度控制器降低有效数据传送速率来进行响应。

2. 发明授权

US5341370A Data transfer between high bit rate buses via unshielded low bit rate bus 失效
标题翻译：通过非屏蔽低比特率总线在高比特率总线之间进行数据传输
公开(公告)号：US5341370A
公开(公告)日：1994-08-23
申请号：US25838
申请日：1993-03-03
申请人： Derek J. Nuhn , Gordon W. Servant , Robert P. Brennan , George A. Jeffrey
发明人： Derek J. Nuhn , Gordon W. Servant , Robert P. Brennan , George A. Jeffrey
IPC分类号： H04J3/06 , H04M1/253 , H04Q11/04 , H04B3/00 , H04L5/22
CPC分类号： H04Q11/0442 , H04J3/0626 , H04M1/253 , H04Q11/0471 , H04Q2213/216 , H04Q2213/297
摘要： A method and apparatus for transferring high data rate data between a pair of separated high data rate buses comprising storing a group of high data rate data from one of the buses, one of which is connected to a digital telephone set, reading the stored data at a low data rate, conditioning the low data rate data to remove high frequency components therefrom, applying the conditioned data to an unshielded cable for transmission to the separated other high data rate bus, receiving and storing the conditioned data from the unshielded cable and reading the stored conditioned data at a high data rate to said other bus.
摘要翻译：一种用于在一对分离的高数据速率总线之间传送高数据速率数据的方法和装置，包括从一条总线存储一组高数据速率数据，其中一条总线连接到数字电话机，读取存储的数据低数据速率，调节低数据速率数据以从其中去除高频分量，将经调节的数据应用到非屏蔽电缆以传输到分离的其他高数据速率总线，从非屏蔽电缆接收和存储经调节的数据并读取以高数据速率将所调节的数据存储到所述另一总线。

3. 发明授权

US5333189A Communications protocol for switching systems 失效
标题翻译：交换系统通信协议
公开(公告)号：US5333189A
公开(公告)日：1994-07-26
申请号：US91474
申请日：1993-07-13
申请人： Robert S. Clary , Lars T. Rymert
发明人： Robert S. Clary , Lars T. Rymert
IPC分类号： H04L29/06 , H04Q11/04 , H04M3/00
CPC分类号： H04Q11/0457 , H04L29/06 , H04Q11/0407 , H04Q2213/216
摘要： In a switching network including a central system and at least one end point device connected to the central system, a protocol for communicating between the central and the at least one end point device includes a plurality of signals that may be transmitted from the end point device to the central system, and a plurality of signals that may be transmitted from the central system to the end point device.
摘要翻译：在包括中央系统和连接到中央系统的至少一个终端设备的交换网络中，用于在中心和至少一个终点设备之间进行通信的协议包括可从终端设备发送的多个信号到中央系统，以及可以从中央系统发送到终点设备的多个信号。

4. 发明授权

US5309440A ISDN user-network interface system 失效
标题翻译： ISDN用户网络接口系统
公开(公告)号：US5309440A
公开(公告)日：1994-05-03
申请号：US940040
申请日：1992-09-03
申请人： Hajime Nakamura , Hiroyuki Kikuta , Fumio Watanabe , Masanobu Fujioka
发明人： Hajime Nakamura , Hiroyuki Kikuta , Fumio Watanabe , Masanobu Fujioka
IPC分类号： H04J3/06 , H04Q11/04
CPC分类号： H04Q11/0471 , H04J3/0682 , H04Q2213/194 , H04Q2213/211 , H04Q2213/216 , H04Q2213/36
摘要： An ISDN-user-network interface system comprising an interface buffer and an interface adapter. The interface buffer provided between an ISDN network terminal equipment and a terminal equipment to receive an up-signal frame transmitted from said terminal equipment to said network terminal equipment, to store said up-signal frame, and to transmit said stored up-signal frame at a timing when said network terminal equipment is capable of detecting the synchronization of said up-signal frame. The interface adapter provided between said ISDN network terminal equipment and said terminal equipment, to receive an up-signal frame transmitted from said terminal equipment to said network terminal equipment, to detect D-channel bits of said up-signal frame, to transmit said up-signal frame to said network terminal equipment, to copy said detected D-channel bits into echo channel bits of a down-signal frame from said net-work terminal equipment to said terminal equipment received immediately after the transmission of said up-signal frame, and to transmit said down-signal frame to said terminal equipment.
摘要翻译：一种包括接口缓冲器和接口适配器的ISDN用户网络接口系统。提供在ISDN网络终端设备和终端设备之间的接口缓冲器，用于接收从所述终端设备发送到所述网络终端设备的上行信号帧，以存储所述上行信号帧，并将所述存储的上行信号帧发送到所述网络终端设备能够检测所述上行信号帧的同步的定时。所述接口适配器设置在所述ISDN网络终端设备和所述终端设备之间，以接收从所述终端设备发送到所述网络终端设备的上行信号帧，以检测所述上行信号帧的D信道比特，以发送所述上行对所述网络终端设备进行信号复制，将所述检测到的D信道位复制到从所述网络工作终端设备到所述上行信号帧发送之后立即接收到的所述终端设备的下行信号帧的回声信道位中，并将所述下行信号帧发送到所述终端设备。

5. 发明授权

US4891813A Passive bus communication using alternate CRC 失效
标题翻译：被动总线通信使用交替CRC
公开(公告)号：US4891813A
公开(公告)日：1990-01-02
申请号：US150129
申请日：1988-01-29
申请人： Rafael E. Salcedo , Norman J. Donaghue, Jr.
发明人： Rafael E. Salcedo , Norman J. Donaghue, Jr.
IPC分类号： H03M13/09 , H04L1/00 , H04Q11/04
CPC分类号： H04L1/0057 , H03M13/09 , H04Q11/0471 , H04Q2213/13174 , H04Q2213/13176 , H04Q2213/13202 , H04Q2213/13204 , H04Q2213/13209 , H04Q2213/13215 , H04Q2213/1322 , H04Q2213/13299 , H04Q2213/215 , H04Q2213/216 , H04Q2213/22 , H04Q2213/299
摘要： An apparatus for providing passive bus communication in an ISDN without use of services of a central office uses an alternative error checking (CRC) technique for communication between devices on the passive bus. This alternate CRC is interpreted as an error at the central office so that local frames are discarded by the central office.
摘要翻译：用于在ISDN中提供无源总线通信而不使用中心局的服务的装置使用替代的错误校验（CRC）技术来在被动总线上的设备之间进行通信。这个替代CRC被解释为在中心局的错误，使得局部帧被中心局丢弃。

6. 发明授权

US5832240A ISDN-based high speed communication system 失效
标题翻译：基于ISDN的高速通信系统
公开(公告)号：US5832240A
公开(公告)日：1998-11-03
申请号：US843114
申请日：1997-04-28
申请人： Allen J Larsen , Jennifer K. Hergert , Charles D. Brown , William C. Cross , Ronald E. Dove , Paul W. T. Heller
发明人： Allen J Larsen , Jennifer K. Hergert , Charles D. Brown , William C. Cross , Ronald E. Dove , Paul W. T. Heller
IPC分类号： G06F13/00 , H04Q11/04
CPC分类号： H04Q11/0471 , H04Q2213/056 , H04Q2213/08 , H04Q2213/09 , H04Q2213/093 , H04Q2213/104 , H04Q2213/107 , H04Q2213/109 , H04Q2213/13034 , H04Q2213/1305 , H04Q2213/1308 , H04Q2213/1309 , H04Q2213/13093 , H04Q2213/13103 , H04Q2213/13106 , H04Q2213/13175 , H04Q2213/13179 , H04Q2213/13202 , H04Q2213/13204 , H04Q2213/13208 , H04Q2213/13209 , H04Q2213/13271 , H04Q2213/13299 , H04Q2213/13332 , H04Q2213/13339 , H04Q2213/18 , H04Q2213/201 , H04Q2213/204 , H04Q2213/216 , H04Q2213/296 , H04Q2213/339 , H04Q2213/392
摘要： An ISDN interface is provided on a card, which is adapted for mounting in a terminal computer and which is operable to exchange data with a terminal computer and an ISDN. The ISDN interface card includes a protocol processor that is programmable to process data encoded in accordance with a number of different protocols and a digital signal processor that is programmable for data compression, encryption and facsimile applications, and u-law and a-law conversion, among other applications. The ISDN card dynamically allocates data calls between one or two B-channels to achieve a data transmission rate of 128 kbps. A power supply with a ring generator is provided to allow for the use of an analog telephone with the ISDN card. The ISDN card is programmable to allow users to create customized screens for various call processes, and to allow for the updating of a flash ROM coupled to the protocol processor through the terminal computer and the ISDN.
摘要翻译：一个ISDN接口被提供在一个卡上，适用于安装在一个终端计算机上，可以与终端计算机和ISDN交换数据。 ISDN接口卡包括可编程以处理根据多个不同协议编码的数据的协议处理器和可编程用于数据压缩，加密和传真应用以及u律和法律转换的数字信号处理器，以及其他应用程序。 ISDN卡在一个或两个B信道之间动态分配数据呼叫，以实现128kbps的数据传输速率。提供带环形发生器的电源，以允许使用带有ISDN卡的模拟电话。 ISDN卡是可编程的，允许用户为各种呼叫处理创建定制屏幕，并且允许通过终端计算机和ISDN更新耦合到协议处理器的闪存ROM。

7. 发明授权

US5646959A Terminal adapter capable of reducing a memory capacity of a buffer memory 失效
标题翻译：能够减少缓冲存储器的存储容量的终端适配器
公开(公告)号：US5646959A
公开(公告)日：1997-07-08
申请号：US302544
申请日：1994-09-08
申请人： Yoshiyuki Kamishima
发明人： Yoshiyuki Kamishima
IPC分类号： H04Q11/04 , H04B1/66 , H04B14/06 , H04L23/00
CPC分类号： G06F3/14 , H04Q11/0471 , G09G2370/025 , H04Q2213/034 , H04Q2213/103 , H04Q2213/174 , H04Q2213/216 , H04Q2213/297
摘要： In a terminal adapter which is located between a data terminal equipment unit (11) and a data communication network (12) and which includes a buffer memory (22, 27) for memorizing an original data signal sequence sent from each of the data terminal equipment unit and the data communication network, the original data signal sequence is subjected to data compression by a data compression circuit to be thereafter memorized into the buffer memory and to be read out of the buffer memory as a readout data signal sequence. The readout data signal sequence is expanded by a data expansion circuit (32, 35) to be sent to the data terminal equipment unit or the data communication network at a transmission rate matched therewith. The data compression may be executed by the use of an LZ method, a modified LZ method, such as LZW, LZSS, or the like.
摘要翻译：在位于数据终端设备单元（11）和数据通信网络（12）之间的终端适配器中，包括缓冲存储器（22,27），用于存储从每个数据终端设备发送的原始数据信号序列单元和数据通信网络，原始数据信号序列由数据压缩电路进行数据压缩，然后被存储到缓冲存储器中，并作为读出数据信号序列从缓冲存储器读出。读出数据信号序列由数据扩展电路（32,35）扩展，以与之对应的传输速率发送到数据终端设备单元或数据通信网络。可以通过使用LZ方法，LZW，LZSS等的修改的LZ方法来执行数据压缩。

8. 发明授权

US5544158A Method for multiple access in a digital communication system 失效
标题翻译：一种数字通信系统中多重访问的方法
公开(公告)号：US5544158A
公开(公告)日：1996-08-06
申请号：US191470
申请日：1994-02-04
申请人： Dan Oprea , Jacob Cepelinski
发明人： Dan Oprea , Jacob Cepelinski
IPC分类号： H04L5/14 , H04M9/02 , H04Q11/04 , H04J3/00
CPC分类号： H04Q11/0471 , H04L5/1492 , H04M9/025 , H04Q2213/197 , H04Q2213/216 , H04Q2213/292 , H04Q2213/299 , H04Q2213/36
摘要： A digital data communications system, comprises a master station and a plurality of slave stations communicating with said master station in a multiburst scheme over a digital link having a plurality of communication channels associated respectively with said slave stations. In each frame the master station transmits a master burst over all the channels and the slave stations transmit slave bursts over the respective channels associated therewith.
摘要翻译：数字数据通信系统包括主站和多个从站，通过具有分别与所述从站相关联的多个通信信道的数字链路以多波段方案与所述主站通信。在每个帧中，主站在所有通道上发送主脉冲串，并且从站在与之相关的相应通道上发送从站脉冲串。

9. 发明授权

US5278972A Communication system for converting ISDN signaling protocol between local and public network having first group of mandatory elements and second group of non-mandatory elements 失效
标题翻译：用于在本地和公共网络之间转换ISDN信令协议的通信系统，具有第一组强制性元素和第二组非强制性元素
公开(公告)号：US5278972A
公开(公告)日：1994-01-11
申请号：US616961
申请日：1990-11-21
申请人： Albert D. Baker , Wayne D. Farmer , Richard E. Henderson , Thomas C. Prewitt , Mary E. Ricker , David B. Rucinski , Albert V. Toy , Jerry S. Weltman
发明人： Albert D. Baker , Wayne D. Farmer , Richard E. Henderson , Thomas C. Prewitt , Mary E. Ricker , David B. Rucinski , Albert V. Toy , Jerry S. Weltman
IPC分类号： H04L29/06 , H04Q11/04 , G06F13/00 , G06F3/00
CPC分类号： H04Q11/0428 , H04Q11/0457 , H04Q2213/216 , H04Q2213/22
摘要： A communication system operates compatibly with a public or private switching network using a Q.931 protocol for basic rate ISDN communications. Communications between a control unit and station terminals of the system use a local protocol which is a modification of the Q.931 protocol. This local protocol includes one segment including the mandatory elements of the Q.931 protocol and a second segment derived by converting the optional elements of the Q.931 protocol into a local codeset which controls the user interface circuits at each station terminal. The local protocol enables call control between the control unit and each station terminal to be managed on a bearer channel basis while call control between the system and the network is managed on a call appearance basis using the standard Q.931 protocol. The local protocol provides for communicating line selection and feature activation commands from the terminal to the control unit, using simple button commands.
摘要翻译：通信系统与公共或专用交换网络兼容，使用Q.931协议进行基本速率ISDN通信。系统的控制单元和站终端之间的通信使用本地协议，这是Q.931协议的修改。该本地协议包括包括Q.931协议的强制元素的一个段，以及通过将Q.931协议的可选元素转换成控制每个站终端的用户接口电路的本地代码集导出的第二段。本地协议使得控制单元和每个站终端之间的呼叫控制能够在承载信道的基础上进行管理，同时使用标准Q.931协议在呼叫状态下管理系统与网络之间的呼叫控制。本地协议提供从终端到控制单元的线路选择和功能激活命令，使用简单的按钮命令。

10. 发明授权

US5243593A Method of activating tandem digital subscriber lines 失效
标题翻译：激活串联数字用户线路的方法
公开(公告)号：US5243593A
公开(公告)日：1993-09-07
申请号：US722086
申请日：1991-06-27
申请人： Jeffrey L. Timbs
发明人： Jeffrey L. Timbs
IPC分类号： H04Q11/04
CPC分类号： H04Q11/0442 , H04Q11/0471 , H04Q2213/103 , H04Q2213/109 , H04Q2213/176 , H04Q2213/216
摘要： A method for activating tandem digital subscriber lines separated by a carrier system in a communication link connecting a switch and a network termination is implemented by a microcontroller which interfaces with a digital subscriber line transceiver to extract and transmit activation request information and a programmable gate array to relay and interpret activation information conveyed across the carrier system. The microcontroller intelligently combines the activation information received from the carrier system, the activation indicator bit received from the digital subscriber line transceiver, and the transceiver status to independently activate the digital subscriber lines in a controlled sequence, so that a proper response is conveyed to the T-interface to preclude premature regarding of the physical transmission channel as being transparent. This is achieved by not setting the downstream activation bit to the network termination to 1 until each upstream digital subscriber line is fully activated in both directions.
摘要翻译：一种用于在连接交换机和网络终端的通信链路中激活由载波系统分离的串联数字用户线的方法由与数字用户线收发器接口的微控制器实现，以将激活请求信息和可编程门阵列提取到中继和解释通过载体系统传送的激活信息。微控制器智能地组合从载波系统接收到的激活信息，从数字用户线路收发器接收的激活指示符比特和收发器状态，以受控的顺序独立地激活数字用户线，使得适当的响应被传送到 T接口防止物理传输通道过早的透明。这通过不将网络终端的下游激活位设置为1，直到每个上游数字用户线在两个方向上被完全激活来实现。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式