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1. 发明授权

US06349096B1 Configurable digital subscriber loop access and end-to-end data and analog voice connection system 失效
标题翻译：可配置的数字用户环路接入和端到端数据和模拟语音连接系统
公开(公告)号：US06349096B1
公开(公告)日：2002-02-19
申请号：US08934844
申请日：1997-09-22
申请人： Ming-Kang Liu , Steve Chen , Victor Lee , Young Way Liu , Wen Chi Chen
发明人： Ming-Kang Liu , Steve Chen , Victor Lee , Young Way Liu , Wen Chi Chen
IPC分类号： H04L1266
CPC分类号： H04L12/5692 , H04Q11/0457 , H04Q2213/13039 , H04Q2213/13076 , H04Q2213/13099 , H04Q2213/13141 , H04Q2213/13176 , H04Q2213/13204 , H04Q2213/13209 , H04Q2213/1329 , H04Q2213/13292 , H04Q2213/13298 , H04Q2213/13332 , H04Q2213/13381 , H04Q2213/13386 , H04Q2213/13389
摘要： A system that can be dynamically configured to achieve an optimal routing path for an end-to-end data link connection is disclosed. An optimal data path can be determined by a digital subscriber loop (DSL) user based on particular bandwidth requirements, data rate cost constraints, and/or data delay requirements. The data path can be set up to include one or more data routes, including the regular digital public switching telephone network (PSTN), a wide area networks (WAN), or virtual permanent circuit links via digital cross-connects (DCS).
摘要翻译：公开了一种可动态配置以实现端到端数据链路连接的最佳路由路径的系统。可以由数字用户环路（DSL）用户基于特定带宽要求，数据速率成本约束和/或数据延迟要求来确定最佳数据路径。数据路径可以被设置为包括一个或多个数据路由，包括常规数字公共交换电话网（PSTN），广域网（WAN）或经由数字交叉连接（DCS）的虚拟永久电路链路。

2. 发明授权

US6128335A Software rate adaptable modem with forward compatible and expandable functionality and method of operation 失效
标题翻译：具有前向兼容和可扩展功能和操作方法的软件速率适配调制解调器
公开(公告)号：US6128335A
公开(公告)日：2000-10-03
申请号：US884957
申请日：1997-06-30
申请人： Young Way Liu , Ming-Kang Liu , Steve Chen
发明人： Young Way Liu , Ming-Kang Liu , Steve Chen
IPC分类号： H04J1/00 , H04J1/05 , H04L5/14 , H04L27/00 , H04Q1/45 , H04B1/38
CPC分类号： H04L27/0002 , H04L5/1446 , Y02B60/31
摘要： A high speed software modem is described which uses a selectable, desirable portion of the total available bandwidth of a transmission channel. In a preferred embodiment, the invention is implemented in a personal computer connected to an upstream transceiver through a channel supporting an Asymmetric Digital Subscriber Loop (ADSL) standard. The achievable target data rate of the modem is based on the capabilities of an analog front end (AFE) used in the modem, and a host processor within such personal computer. In particular, the modem AFE contains subband filtering which causes an upstream transceiver to use only a selected number of available sub-channels for downstream data transmission. The data rate of the modem is increased by upgrading the AFE or the host processor in order to increase the number of processable transmitted downstream sub-channels.
摘要翻译：描述了使用传输信道的总可用带宽的可选择的期望部分的高速软件调制解调器。在优选实施例中，本发明通过支持非对称数字用户环路（ADSL）标准的信道在连接到上行收发信机的个人计算机中实现。调制解调器的可实现的目标数据速率基于调制解调器中使用的模拟前端（AFE）的能力以及这种个人计算机内的主机处理器。特别地，调制解调器AFE包含子带滤波，其使得上游收发器仅使用所选数量的可用子信道用于下行数据传输。通过升级AFE或主处理器来增加调制解调器的数据速率，以增加可处理的传输的下行子信道的数量。

3. 发明授权

US6092122A xDSL DMT modem using sub-channel selection to achieve scaleable data rate based on available signal processing resources 失效
标题翻译： xDSL DMT调制解调器使用子通道选择，以实现可用信号处理资源的可扩展数据速率
公开(公告)号：US6092122A
公开(公告)日：2000-07-18
申请号：US884979
申请日：1997-06-30
申请人： Young Way Liu , Ming-Kang Liu , Steve Chen
发明人： Young Way Liu , Ming-Kang Liu , Steve Chen
IPC分类号： G06F15/163
CPC分类号： G06F15/163
摘要： A high speed modem is provided which uses a selectable, desirable portion of the total available bandwidth of a transmission channel. In a preferred embodiment, the invention is incorporated in a dedicated hardware circuit which is connected on one end to a data processor and on the other end to an upstream transceiver through a channel supporting an Asymmetric Digital Subscriber Loop (ADSL) standard. The achievable target data rate of the modem is based on the capabilities of an analog front end (AFE) used in the modem, and a signal processor within the dedicated hardware. In particular, the modem AFE contains subband filtering which causes an upstream transceiver to use only a selected number of available sub-channels for downstream data transmission. The data rate of the modem is increased by upgrading the AFE or the signal processor in order to increase the number of processable transmitted downstream sub-channels.
摘要翻译：提供了一种高速调制解调器，其使用传输信道的总可用带宽的可选择的期望部分。在优选实施例中，本发明被并入专用硬件电路中，该专用硬件电路在一端连接到数据处理器，另一端连接到支持非对称数字用户环路（ADSL）标准的信道的上行收发信机。调制解调器可实现的目标数据速率是基于调制解调器中使用的模拟前端（AFE）和专用硬件中的信号处理器的能力。特别地，调制解调器AFE包含子带滤波，其使得上游收发器仅使用所选数量的可用子信道用于下行数据传输。通过升级AFE或信号处理器来增加调制解调器的数据速率，以增加可处理的传输的下行子信道的数量。

4. 发明授权

US07072331B2 Configurable digital subscriber loop access and end-to-end data and analog voice connection system 有权
公开(公告)号：US07072331B2
公开(公告)日：2006-07-04
申请号：US09991285
申请日：2001-11-13
申请人： Ming-Kang Liu , Steve Chen , Victor Lee , Young Way Liu , Wen Chi Chen
发明人： Ming-Kang Liu , Steve Chen , Victor Lee , Young Way Liu , Wen Chi Chen
IPC分类号： H04L12/66
CPC分类号： H04L12/2889 , H04L12/2856 , H04L41/0803 , H04L41/0826 , H04L41/083
摘要： A system that can be dynamically configured to achieve an optimal routing path for an end-to-end data link connection is disclosed. An optimal data path can be determined by a digital subscriber loop (DSL) user based on particular bandwidth requirements, data rate cost constraints, and/or data delay requirements. The data path can be set up to include one or more data routes, including the regular digital public switching telephone network (PSTN), a wide area networks (WAN), or virtual permanent circuit links via digital cross-connects (DCS).

5. 发明授权

US06400759B1 Device driver for rate adaptable modem with forward compatible and expandable functionality 失效
标题翻译：具有前向兼容和可扩展功能的速率适配调制解调器的设备驱动程序
公开(公告)号：US06400759B1
公开(公告)日：2002-06-04
申请号：US08884956
申请日：1997-06-30
申请人： Young Way Liu , Ming-Kang Liu , Steve Chen
发明人： Young Way Liu , Ming-Kang Liu , Steve Chen
IPC分类号： H04B138
CPC分类号： H04L5/1438
摘要： A device or interface driver is provided for permitting an operating system to utilize, configure and control a software modem having forward compatible and expandable functionality. In a preferred embodiment, the operating system is a Windows based system running on a host processing system such as a personal computer, and the modem is compatible with standards promulgated for ADSL. Conventional voice band modem control commands are also supported, so that the present invention for ADSL based modems is nevertheless compatible with existing modem applications programs. The new driver manages control information for configuring the bandwidth to be used in a data link established through a channel with an upstream transciever during an initialization process, and serves as a data pump for the software modem. The control information may be self-determined by a user of the host processing system 398, or alternatively, automatically sensed, configured and monitored by such processing system.
摘要翻译：提供了一种设备或接口驱动程序，用于允许操作系统利用，配置和控制具有前向兼容和可扩展功能的软件调制解调器。在优选实施例中，操作系统是在诸如个人计算机的主机处理系统上运行的基于Windows的系统，并且调制解调器与针对ADSL公布的标准兼容。还支持传统的语音频带调制解调器控制命令，使得用于基于ADSL的调制解调器的本发明仍然与现有的调制解调器应用程序兼容。新的驱动程序管理控制信息，用于配置在初始化过程中通过具有上游转发器的信道建立的数据链路中使用的带宽，并且用作软件调制解调器的数据泵。控制信息可以由主机处理系统398的用户自行确定，或者由这种处理系统自动感测，配置和监视。

6. 发明授权

US6073179A Program for controlling DMT based modem using sub-channel selection to achieve scaleable data rate based on available signal processing resources 失效
标题翻译：用于使用子信道选择来控制基于DMT的调制解调器的程序，以基于可用的信号处理资源实现可扩展的数据速率
公开(公告)号：US6073179A
公开(公告)日：2000-06-06
申请号：US884959
申请日：1997-06-30
申请人： Young Way Liu , Ming-Kang Liu , Steve Chen , John Nicholas Gross
发明人： Young Way Liu , Ming-Kang Liu , Steve Chen , John Nicholas Gross
IPC分类号： G06F15/163
CPC分类号： G06F15/163
摘要： An applications program is provided for permitting a user of a host processing system to dynamically control a modem having forward compatible and expandable functionality. In a preferred embodiment, the applications program is designed to run on a personal computer running the Windows.RTM. shell, and the modem is compatible with ADSL promulgated standards. As part of such program, initialization and detection routines determine the capabilities of an ADSL modem, including whether the same has been upgraded to have enhanced data throughput. A calibration routine measures the computing power available to the host processor, and based on this information and other relevant parameters determines nominal setup parameters for the modem. These parameters are stored in a Device Parameter Table so that they can be accessed by various application programs that may make use of such modem. A user of such program can at that time or thereafter alter the characteristics of the ADSL modem (including a target data rate) subject to availability of sufficiently powerful analog front end sampling circuitry and processing power.
摘要翻译：提供了一种应用程序，用于允许主机处理系统的用户动态地控制具有前向兼容和可扩展功能的调制解调器。在优选实施例中，应用程序被设计为在运行Windows TM外壳的个人计算机上运行，并且调制解调器与ADSL公布的标准兼容。作为此类程序的一部分，初始化和检测程序决定了ADSL调制解调器的功能，包括是否将其升级为具有增强的数据吞吐量。校准程序测量主处理器可用的计算能力，并且基于该信息和其他相关参数确定调制解调器的标称设置参数。这些参数存储在设备参数表中，以便可以使用可能使用这种调制解调器的各种应用程序访问它们。此类程序的用户可以在此时或之后根据具有足够强大的模拟前端采样电路和处理能力的可用性来改变ADSL调制解调器的特性（包括目标数据速率）。

7. 发明授权

US06252900B1 Forward compatible and expandable high speed communications system and method of operation 失效
标题翻译：前向兼容和可扩展的高速通信系统和操作方法
公开(公告)号：US06252900B1
公开(公告)日：2001-06-26
申请号：US08884895
申请日：1997-06-30
申请人： Young Way Liu , Ming-Kang Liu , Steve Chen
发明人： Young Way Liu , Ming-Kang Liu , Steve Chen
IPC分类号： H04B138
CPC分类号： H04L5/1446 , H04L27/2601 , Y02D50/10
摘要： A high speed communications system is provided which uses a selectable, desirable portion of the total available bandwidth of a transmission channel. In a preferred embodiment, the invention is an ADSL compatible modem which selects a sub-set of the available downstream DMT sub-channels based on an evaluation of such sub-channels by appropriate signal processing circuitry. An analog front end (AFE) contains sub-band filtering causes an upstream transceiver to use only this selected number of available sub-channels for downstream data transmission. This reduces hardware costs and complexity while still preserving compatibility with applicable ADSL standards and providing a high speed data link. The target data rate of the modem can be further enhanced to the point of achieving full protocol capability by increasing or upgrading the AFEs, and/or the signal processing circuitry in order to increase the number of processable transmitted downstream sub-channels.
摘要翻译：提供了一种高速通信系统，其使用传输信道的总可用带宽的可选择的期望部分。在优选实施例中，本发明是一种ADSL兼容调制解调器，其基于由适当的信号处理电路对这些子信道的评估来选择可用的下游DMT子信道的子集。模拟前端（AFE）包含子带过滤，使上游收发器仅使用该选定数量的可用子信道进行下行数据传输。这降低了硬件成本和复杂性，同时仍然保持与适用的ADSL标准的兼容性并提供高速数据链路。调制解调器的目标数据速率可以通过增加或升级AFE和/或信号处理电路来进一步增强到达到完全协议能力的程度，以便增加可处理传输的下行子信道的数量。

8. 发明授权

US6065060A Modular multiplicative data rate modem and method of operation 失效
标题翻译：模块化乘法数据速率调制解调器和操作方法
公开(公告)号：US6065060A
公开(公告)日：2000-05-16
申请号：US884958
申请日：1997-06-30
申请人： Young Way Liu , Ming-Kang Liu , Steve Chen
发明人： Young Way Liu , Ming-Kang Liu , Steve Chen
IPC分类号： G06F15/163
CPC分类号： G06F15/163
摘要： A high speed modem is provided which targets the use of a selectable, desirable portion of the total available bandwidth of a channel for achieving a data rate which nevertheless far exceeds that of conventional voice-band modems. In a preferred embodiment, the invention is implemented in an Asymmetric Digital Subscriber Loop (ADSL), and the nominal data rate is achieved using an analog front end (AFE) with subband filtering which causes an upstream transceiver to use only a selected number of available sub-channels for downstream data transmission and allows slower sampling rate for the AFE. The data rate of the modem is increased in a multiplicative fashion through modular expansion of a bank of AFEs to increase the number of transmitted downstream sub-channels.
摘要翻译：提供了一种高速调制解调器，其旨在使用信道的总可用带宽的可选择的期望部分，以实现远远超过传统语音频带调制解调器的数据速率。在优选实施例中，本发明在非对称数字用户环路（ADSL）中实现，并且使用具有子带过滤的模拟前端（AFE）来实现标称数据速率，这使得上游收发器仅使用所选数量的可用用于下行数据传输的子通道，并允许AFE的采样速率较慢。调制解调器的数据速率通过一组AFE的模块化扩展以乘法方式增加，以增加发送的下行子信道的数量。

9. 发明授权

US06233250B1 System and method for reducing latency in software modem for high-speed synchronous transmission 失效
标题翻译：用于降低软件调制解调器中用于高速同步传输的延迟的系统和方法
公开(公告)号：US06233250B1
公开(公告)日：2001-05-15
申请号：US09191569
申请日：1998-11-13
申请人： Young Way Liu , Chin-I Huang , Ta-Yung Lee , Wen-Ching Andy Chou , Dean C. Wang , Ming-Kang Liu
发明人： Young Way Liu , Chin-I Huang , Ta-Yung Lee , Wen-Ching Andy Chou , Dean C. Wang , Ming-Kang Liu
IPC分类号： H04J316
CPC分类号： H04L12/5601 , H04L49/90 , H04L49/901 , H04L49/9047 , H04L49/9078 , H04L2012/5615 , H04L2012/5665 , H04L2012/568 , H04L2012/5682 , H04M11/062 , H04Q11/0478
摘要： An ADSL physical transmission layer retrieves data to be transmitted from either a transmit data buffer, or a dummy cell buffer in the case when no actual data is being transmitted to maintain a continuous data stream in an ADSL data link. The ADSL physical transmission layer and an associated ATM protocol layer are implemented as an interrupt service routine and delayed procedure call respectively in an ADSL software modem application. Because the ATM protocol layer does not fill the transmit data buffer with dummy cell data, it is simpler and faster. Moreover, latency is minimized, and overall system throughput enhanced since the maximum latency is independent of any operating system latency, and is no greater than the size of the cell stored in the dummy cell buffer. The invention has significant potential for beneficial use in an ADSL based software modem where wide variations in performance and latency of computing systems pose engineering challenges in maintaining a continous data link between a real time transceiver and a non-real time operating system.
摘要翻译：在没有发送实际数据的情况下，ADSL物理传输层从发送数据缓冲器或虚拟小区缓冲器中检索要发送的数据，以便在ADSL数据链路中维持连续的数据流。 ADSL物理传输层和相关联的ATM协议层分别在ADSL软件调制解调器应用中实现为中断服务程序和延迟过程调用。因为ATM协议层没有用虚拟单元数据填充发送数据缓冲区，所以它更简单快捷。此外，延迟最小化，并且整体系统吞吐量增加，因为最大等待时间与任何操作系统等待时间无关，并且不大于存储在虚拟单元缓冲器中的单元的大小。本发明在基于ADSL的软件调制解调器中有很大的潜力，其中计算系统的性能和延迟的广泛变化在维持实时收发器和非实时操作系统之间的连续数据链路方面带来了工程上的挑战。

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