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1. 发明申请

WO1993005598A1 FIRST AND SECOND DIGITAL RATE CONVERTER SYNCHRONIZATION DEVICE AND METHOD 审中-公开
标题翻译：第一和第二数字转换器同步装置和方法
公开(公告)号：WO1993005598A1
公开(公告)日：1993-03-18
申请号：PCT/US1992006353
申请日：1992-08-03
申请人： CODEX CORPORATION
发明人： CODEX CORPORATION , LING, Fuyun
IPC分类号： H04L07/00
CPC分类号： H04L7/0029 , H03H17/0628 , H04L7/0041 , H04L7/005 , H04L7/0091
摘要： A first and second digital rate converter device and method provides for synchronization between a first digital sample sequence and a second digital output sequence related to the first digital sample sequence for a rate converter pair (501, 511; 601, 611). The method typically utilizes at least one of: queue monitoring and zero-crossing with resetting to minimize sampling timing error.

2. 发明申请

WO1991010957A1 ARBITRATION AMONG MULTIPLE USERS OF A SHARED RESOURCE 审中-公开
标题翻译：共享资源的多个用户的仲裁
公开(公告)号：WO1991010957A1
公开(公告)日：1991-07-25
申请号：PCT/US1991000323
申请日：1991-01-16
申请人： CODEX CORPORATION
发明人： CODEX CORPORATION , HOLT, Craig, S. , KEREN-ZVI, Joseph , HASLEY, Lloyd, A.
IPC分类号： G06F13/00
CPC分类号： G06F13/374
摘要： Arbitration is performed among a plurality of users (12a-12n) for access to a shared resource in a system (10) of the kind in which the users (12a-12n) arbitrate by placing arbitration signals on a line (19) and subsequently comparing their arbitration signals with a signal appearing on the line (19), by providing the users (12a-12n) with independently operating clocks (18) and controlling the progression of the arbitration based on timing provided by the clock (18) of at least one of the users (12a-12n). The progression of the arbitration thus does not depend upon a single master clock, or upon synchronizing the individual user clocks (18). Users that request access are assigned a first priority in the arbitration based at least on an access priority preassigned to the request for access and on whether the user is a member of a current group of users that is formed at a time during the arbitration when another group of users is empty, the current group including users that have been denied access as of that time; at least a portion of each user's arbitration signal is arranged as a multibit word having a value that represents the first priority, and each user that arbitrates for access places its multibit word in parallel on the path and determines whether it has won the arbitration by subsequently comparing its multibit word value with the value of a multibit word that appears on the path.
摘要翻译：在用户（12a-12n）通过在线（19）上放置仲裁信号并随后进行仲裁的类型的系统（10）中的共享资源之间执行仲裁来执行仲裁通过向用户（12a-12n）提供独立操作的时钟（18）来比较他们的仲裁信号与出现在线路（19）上的信号，并根据由时钟（18）提供的定时控制仲裁的进展至少一个用户（12a-12n）。因此仲裁的进展不依赖于单个主时钟，或者在同步各个用户时钟（18）时。请求访问的用户至少基于预分配给访问请求的访问优先级以及用户是否是在仲裁期间形成的当前用户组的成员的另一个用户组为空，当前组包括当时已被拒绝访问的用户; 每个用户的仲裁信号的至少一部分被布置为具有表示第一优先级的值的多位字，并且仲裁访问的每个用户将其多位字并行在路径上并且确定其是否已经通过随后获得仲裁将其多位字值与出现在路径上的多位字的值进行比较。

3. 发明申请

WO1991010289A1 TRANSMITTING ENCODED DATA ON UNRELIABLE NETWORKS 审中-公开
标题翻译：在不可靠网络上传输编码数据
公开(公告)号：WO1991010289A1
公开(公告)日：1991-07-11
申请号：PCT/US1990007472
申请日：1990-12-24
申请人： CODEX CORPORATION
发明人： CODEX CORPORATION , GUTMAN, Michael , HLUCHYJ, Michael, G. , PASCO-ANDERSON, James, A.
IPC分类号： H03M13/00
CPC分类号： H04N21/658 , H04L1/16 , H04L1/188 , H04L7/048 , H04N21/6377
摘要： Information encoded by data compression (or another data encoding technique, e.g., encryption, requiring synchronization between the encoder (12a) and decoder (22b) is transmitted over an unreliable network (16) by checking for transmission errors after decoding. If an error is detected, the encoder (12a) is reset, using a reset protocol, which may operate over an unreliable reverse channel (16) by using a timer (46) to generate further reset requests when the receiver does not acknowledge them in a timely fashion.

4. 发明申请

WO1990006637A1 ADAPTIVE RATE CONTROL FOR ECHO CANCELLING MODEM 审中-公开
标题翻译： ECHO取消调制解调器的自适应速率控制
公开(公告)号：WO1990006637A1
公开(公告)日：1990-06-14
申请号：PCT/US1989005450
申请日：1989-12-04
申请人： CODEX CORPORATION
发明人： CODEX CORPORATION , SRIDHAR, Manickam, R. , PAYTON, John, L. , BARGOOT, Carol, Ann
IPC分类号： H04B03/23
CPC分类号： H04L1/002 , H04B3/235 , H04B3/238 , H04L1/0003 , H04L1/0015 , H04L1/0025 , H04L1/0054 , H04L5/143 , H04L5/1446 , H04L5/16
摘要： Channel distortion and echo signals detrimentally affect data communication over a channel. The invention provides an echo cancellation modem for full-duplex communication which selects a modulation scheme prior to data communication, and requests changes to the level of modulation during data communication when channel quality has changed significantly. The modem includes an echo canceller (12, 14), a monitor (24) for determining the quality of the channel based on analysis of a residual echo component, and a controller (46) for selecting an acceptable modulation scheme based on the analysis by the monitor. The modem requests the remote device to operate at a selected rate, and operates at the selected rate only if the the remote device concurs. The modem uses a fall forward flag (68) to prevent contention between the modem and the remote device when the remote device cannot support a requested higher level modulation scheme. The modem includes re-initialization logic which selects appropriate monitor thresholds for coded and uncoded modulation options.
摘要翻译：信道失真和回波信号有害地影响信道上的数据通信。本发明提供一种用于全双工通信的回波抵消调制解调器，其在数据通信之前选择调制方案，并且当信道质量显着改变时，请求在数据通信期间对调制电平的改变。调制解调器包括回波消除器（12,14），用于基于残余回波分量的分析来确定信道质量的监视器（24），以及用于基于分析的可接受调制方案来选择可接受调制方案的控制器（46）监视器。调制解调器请求远程设备以所选择的速率运行，并且只有在远程设备同意时才以所选择的速率运行。当远程设备不能支持所请求的更高级别的调制方案时，调制解调器使用倒退标志（68）来防止调制解调器和远程设备之间的争用。调制解调器包括重新初始化逻辑，其为编码和未编码的调制选项选择合适的监视器阈值。

5. 发明申请

WO1989011183A1 MULTIMODE MODEM 审中-公开
标题翻译：多模式调制解调器
公开(公告)号：WO1989011183A1
公开(公告)日：1989-11-16
申请号：PCT/US1989002017
申请日：1989-05-10
申请人： CODEX CORPORATION
发明人： CODEX CORPORATION , GRESZCZUK, John, A.
IPC分类号： H04B01/38
CPC分类号： H04M11/06
摘要： A multimode modem for communicating with a variety of modem types employing differing initial handshake signals includes plural modulators (12, 14) which send a sequence of signals corresponding to the variety of modem type handshake signals, the sequence terminating when a handshake signal detector (24) receives an appropriate response identifying a particular one of the modem types. In a preferred embodiment, the multimode modem (10, 12, 14, 16, 18, 20, 22, 24) is adapted to interwork with V.32 and V.22bis and V.22 modems on the public switched telephone network.
摘要翻译：用于与使用不同的初始握手信号的各种调制解调器类型进行通信的多模式调制解调器包括发送与各种调制解调器类型的握手信号相对应的信号序列的多个调制器（12,14），该序列在握手信号检测器（24 ）接收到识别调制解调器类型中的特定一个的适当响应。在优选实施例中，多模式调制解调器（10,12,14,16,18,20,22,24）适于与公共交换电话网络上的V.32和V.22bis和V.22调制解调器互通。

6. 发明申请

WO1995019675A1 METHOD AND SYSTEM FOR ATM TRAFFIC MANAGEMENT 审中-公开
标题翻译： ATM交通管理方法与系统
公开(公告)号：WO1995019675A1
公开(公告)日：1995-07-20
申请号：PCT/US1994013907
申请日：1994-12-05
申请人： CODEX CORPORATION
发明人： CODEX CORPORATION , GROSSMAN, Daniel, B. , HLUCHYJ, Michael, G.
IPC分类号： H04L12/56
CPC分类号： H04L12/5602 , H04L2012/5615 , H04L2012/5619 , H04L2012/563 , H04L2012/5635 , H04L2012/5636
摘要： A combination of an end-to-end closed-loop rate control mechanism for controlling the flow of cells entering a relay communication network (200) from an end system (202), along with a segment (A, B) traffic control mechanism (302, 308) for protecting the segment (A, B) against misbehaving or malfunctioning destination end systems (208) provides a novel, more efficient traffic management system and method for cell flow regulation in a cell relay communications network (200).
摘要翻译：用于控制从终端系统（202）进入中继通信网络（200）的小区的流量的端到端闭环速率控制机制的组合以及分段（A，B）业务控制机制（用于保护段（A，B）以防止行为异常或故障的目的地终端系统（208）为小区中继通信网络（200）中的小区流调节提供了一种新颖的，更有效的业务管理系统和方法。

7. 发明申请

WO1994015407A1 EFFICIENT CRC REMAINDER COEFFICIENT GENERATION AND CHECKING DEVICE AND METHOD 审中-公开
标题翻译：有效的CRC残留系数生成和检查装置和方法
公开(公告)号：WO1994015407A1
公开(公告)日：1994-07-07
申请号：PCT/US1993011790
申请日：1993-12-06
申请人： CODEX CORPORATION
发明人： CODEX CORPORATION , LI, Shiping , PASCO-ANDERSON, James, A.
IPC分类号： H03M13/00
CPC分类号： H03M13/091
摘要： Various parallel CRC remainder coefficient generation devices (100, 200, 300, 400, 500, 600, 700) and methods (1100, 1200) are described for providing efficient error detection in various digital data communication systems (800, 900, 1000). A K-bit CRC remainder is calculated from m bits at a time, where m can be less than, equal to, or greater than K, and where the processing of each of the m bits requires a total of j K-bit table look-ups into a total of j tables (410, 412, 414, 516, 518, 520, 522, 616, 614, 712, 714) of 2 entries each, where m = jb. Also required are one m-bit exclusive-or operation (208, 306, 506, 608, 706), a total of (j-1)K-bit exclusive-or operations (422, 532, 626, 628, 720), and one (K-m)-bit exclusive-or operation (216, 632) if m
摘要翻译：描述了用于在各种数字数据通信系统（800,900,1000）中提供有效的错误检测的各种并行CRC余数系数产生装置（100,200,300,400,500,600,700）和方法（1100,1200）。一个K位CRC余数由m位计算，其中m可以小于，等于或大于K，并且每个m位的处理需要总共j个K位表 - 分别组合成每个2个条目的总共j个表（410,412,414,516,518,520,522,616,614,712,714），其中m = jb。还需要一个m位异或操作（208,306,506,608,706），总共（j-1）个K位异或运算（422,532,626,628,720），如果m

8. 发明申请

WO1993001670A1 DEVICE AND METHOD FOR IMPLEMENTING QUEUEING DISCIPLINES AT HIGH SSPEEDS 审中-公开
标题翻译：用于在高SSPEED下实施排队的装置和方法
公开(公告)号：WO1993001670A1
公开(公告)日：1993-01-21
申请号：PCT/US1992004563
申请日：1992-06-01
申请人： CODEX CORPORATION
发明人： CODEX CORPORATION , HLUCHYJ, Michael, G. , BHARGAVA, Amit
IPC分类号： H04L12/56
CPC分类号： H04L49/505 , H04L12/6418 , H04L49/105 , H04L49/20 , H04L49/30 , H04L49/3081 , H04L2012/5651 , H04L2012/5679 , H04L2012/5681 , H04L2012/6464 , H04L2012/6489 , H04Q11/0478 , Y10S370/902
摘要： A device (800) and method (900) are included for providing a high-rate queueing discipline in an information network system having a plurality of traffic classes. The high-rate queueing discipline is based on a scan table-based dequeueing scheme having a scan table (522) that is precomputed and stored in memory, thus facilitating rapid processing of different traffic class information. The device and method are paraticularly useful in a fast packet-system.

9. 发明申请

WO1992004812A1 PRINTED CIRCUIT BOARD MANUFACTURING METHOD ACCOMMODATES WAVE SOLDERING AND PRESS FITTING OF COMPONENTS 审中-公开
标题翻译：印刷电路板制造方法存储波形焊接和组件的压配
公开(公告)号：WO1992004812A1
公开(公告)日：1992-03-19
申请号：PCT/US1991006416
申请日：1991-09-04
申请人： CODEX CORPORATION
发明人： CODEX CORPORATION , McMICHEN, Blane, T. , McMULLEN, Kerry, J. , SUDANOWICZ, John, A., III
IPC分类号： H05K03/34
CPC分类号： H05K3/308 , H05K3/0094 , H05K3/3447 , H05K3/3452 , H05K3/3468 , H05K2201/10303 , H05K2201/1059 , H05K2201/1081 , H05K2203/1189 , H05K2203/1394 , Y10T29/49149 , Y10T29/49153
摘要： A first set of plated-through holes (12) in the printed circuit board (PCB) are covered by a protective solder mask (26) on the solder side of the PCB while a second set of plated-through holes (20) are exposed. Electrical components (22) are disposed on the component side with leads inserted in the second set of holes (20). Solder is prevented from flowing into the first set of holes (12) during wave soldering by the mask covering (26). Conductive pins (30) designed for press fitting into the first set of holes (12) are inserted therethrough to define connecting pins on each side of the PCB following wave soldering. This permits both a wave soldering and press fit operation to be accommodated.

10. 发明申请

WO1992002998A1 DYNAMIC ENCODING RATE CONTROL MINIMIZES TRAFFIC CONGESTION IN A PACKET NETWORK 审中-公开
标题翻译：动态编码速率控制最小化分组网络中的交通约束
公开(公告)号：WO1992002998A1
公开(公告)日：1992-02-20
申请号：PCT/US1991004989
申请日：1991-07-17
申请人： CODEX CORPORATION
发明人： CODEX CORPORATION , HLUCHYJ, Michael, G. , YIN, Nanying
IPC分类号： H04J03/12
CPC分类号： H04L1/0026 , H04J3/1688 , H04L1/0014 , H04L1/0017 , H04L12/6418 , H04L2012/5616 , H04L2012/5635 , H04L2012/5671 , H04L2012/5681 , H04L2012/6481 , H04Q11/0478
摘要： This invention is suited for a packet network that carries bursty data. A mechanism (18, 26) is coupled to an edge node (12) for coding bursty information into a digital format at either a first codidng rate or a second coding rate which is less than the first rate. A mechanism senses traffic overload of one or more intermediate nodes carrying the bursty information. A mechanism which is responsive to the overload sensing mechanism causes the coding mechanism to switch from the first rate to the second rate while a traffic overload is sensed. Thus, network demand requirements are reduced and the overload wil be alleviated.

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