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1. 发明授权

US06275522B1 Method for allocating data and power in a discrete, multi-tone communication system 失效
标题翻译：用于在离散的多音通信系统中分配数据和功率的方法
公开(公告)号：US06275522B1
公开(公告)日：2001-08-14
申请号：US09007390
申请日：1998-01-14
申请人： Terence Johnson , Michael R. May , Matthew A. Pendleton , Howard E. Levin
发明人： Terence Johnson , Michael R. May , Matthew A. Pendleton , Howard E. Levin
IPC分类号： H04B346
CPC分类号： H04L27/2608
摘要： In the present invention, an ADSL system (10) identifies good bin as a bin capable of successfully transmitting data to a destination. A bad bin is identified as a carrier that is not capable of successfully transmitting data to the destination. A marginal bin is identified as a carrier that may be capable of transmitting data to the destination. The power to a bad bin is reduced and allocated to the marginal or good bin(s) to allow an increased bit rate. In another embodiment, the power to marginal bin is reduced and allocated to the good bin(s).
摘要翻译：在本发明中，ADSL系统（10）识别出能够成功地将数据发送到目的地的bin的好的bin。一个坏的垃圾箱被识别为不能成功传送数据到目的地的载体。边缘垃圾箱被识别为可以向目的地发送数据的载体。减少对坏垃圾箱的电力并将其分配给边缘或好的仓，以允许增加的比特率。在另一个实施例中，边缘垃圾箱的功率被减少并分配给好的垃圾箱。

2. 发明授权

US5909463A Single-chip software configurable transceiver for asymmetric communication system 失效
标题翻译：用于非对称通信系统的单芯片软件可配置收发器
公开(公告)号：US5909463A
公开(公告)日：1999-06-01
申请号：US741634
申请日：1996-11-04
申请人： Terence L. Johnson , Peter R. Molnar , Howard E. Levin , Jeffrey P. Gleason , Robin Wiprud , Sujit Sudhaman , Jody Everett , Michael R. May , Carlos A. Greaves , Mathew A. Rybicki , Matthew A. Pendleton , John M. Porter
发明人： Terence L. Johnson , Peter R. Molnar , Howard E. Levin , Jeffrey P. Gleason , Robin Wiprud , Sujit Sudhaman , Jody Everett , Michael R. May , Carlos A. Greaves , Mathew A. Rybicki , Matthew A. Pendleton , John M. Porter
IPC分类号： H04L5/14 , H04L27/00 , H04L27/26 , H04B1/38 , H04B1/56 , H04L5/16
CPC分类号： H04L5/143 , H04L27/0002 , H04L27/2626 , H04L27/2647 , H04Q2213/13034 , H04Q2213/1305 , H04Q2213/13103 , H04Q2213/1319 , H04Q2213/13199 , H04Q2213/1332
摘要： A transceiver (5) for an asymmetric communication system such as asymmetric digital subscriber line (ADSL) includes a configuration register (71) defining operation at either a central office (CO) or a remote terminal (RT). The configuration register (71) includes a control bit (72) for selecting either CO or RT mode. The transceiver (5) includes a signal processing module (70) configured according to the state of the control bit (72). For example, a digital interface (70) converts transmit data into transmit symbols and converts received symbols into receive data. The digital interface (70) uses a large memory (158) as a buffer in the transmit path and a small memory (160) as a buffer in the receive path in CO mode. In RT mode, the digital interface (70) uses the small memory (160) in the transmit path and the large memory (158) in the receive path. The selective configuration allows a single integrated circuit to be used in both CO and RT equipment.
摘要翻译：用于诸如非对称数字用户线（ADSL）的非对称通信系统的收发器（5）包括定义在中心局（CO）或远程终端（RT）处的操作的配置寄存器（71）。配置寄存器（71）包括用于选择CO或RT模式的控制位（72）。收发器（5）包括根据控制位（72）的状态配置的信号处理模块（70）。例如，数字接口（70）将发送数据转换为发送符号并将接收到的符号转换为接收数据。数字接口（70）使用大容量存储器（158）作为发送路径中的缓冲器，并且在CO模式中使用作为接收路径中的缓冲器的小存储器（160）。在RT模式中，数字接口（70）使用发送路径中的小存储器（160）和接收路径中的大存储器（158）。选择性配置允许在CO和RT设备中使用单个集成电路。

3. 发明授权

US06259746B1 Method for allocating data and power in a discrete multi-tone communication system 失效
标题翻译：在离散多音通信系统中分配数据和功率的方法
公开(公告)号：US06259746B1
公开(公告)日：2001-07-10
申请号：US09007218
申请日：1998-01-14
申请人： Howard E. Levin , Michael R. May , Matthew A. Pendleton
发明人： Howard E. Levin , Michael R. May , Matthew A. Pendleton
IPC分类号： H04L2704
CPC分类号： H04L27/2608
摘要： In the present invention, carriers associated with a discrete multi-tone (DMT) communications system (10) are sorted according to bit allocation capacity. The number of bits needed to attain a specified bit rate are then allocated beginning with the carrier having the greatest bit allocation capacity and proceeding toward the carrier having the least bit allocation capacity until all bits to are allocated. Once allocated, the power to any unused bins is reduced. Different subsets of the carriers between line cards can be specified in order to reduce crosstalk between adjacent lines.
摘要翻译：在本发明中，根据比特分配容量对与离散多音（DMT）通信系统（10）相关联的载波进行分类。然后从具有最大位分配容量的载波开始分配达到指定比特率所需的比特数，并且朝向具有最小比特分配容量的载波进行分配，直到所有比特被分配为止。一旦分配，任何未使用的箱的功率就会降低。可以指定线路卡之间的载波的不同子集，以减少相邻线路之间的串扰。

4. 发明授权

US5742527A Flexible asymmetrical digital subscriber line (ADSL) receiver, central office using same, and method therefor 失效
标题翻译：灵活的非对称数字用户线路（ADSL）接收机，中心局使用方法及其方法
公开(公告)号：US5742527A
公开(公告)日：1998-04-21
申请号：US616818
申请日：1996-03-15
申请人： Mathew A. Rybicki , Michael R. May , Matthew A. Pendleton , Terence L. Johnson , Peter R. Molnar
发明人： Mathew A. Rybicki , Michael R. May , Matthew A. Pendleton , Terence L. Johnson , Peter R. Molnar
IPC分类号： H04L25/02 , H04J11/00 , H04L25/03 , H04L27/26 , H04M11/06 , H04Q11/02 , H04Q11/04 , H04L5/20
CPC分类号： H04L27/2649 , H04Q11/0435 , H04Q2213/13034 , H04Q2213/13107 , H04Q2213/1313 , H04Q2213/1319 , H04Q2213/13199 , H04Q2213/13209 , H04Q2213/13376 , H04Q2213/13396
摘要： An ADSL receiver (200) receives an upstream modified ADSL signal and an ISDN signal from a remote terminal (32) on a twisted-pair copper wire (18). An ADSL transmitter (100) of the remote terminal (32) transmits the ADSL signal in a frequency range above an ISDN frequency range so that the ADSL signal does not overlap the frequency range of the ISDN signal. In one embodiment, the ADSL receiver (200) includes a band pass filter (201), an analog-to-digital converter (203), a decimator (205), a fast Fourier transform (210), and a digital signal processor (212). The decimator (205) converts the ADSL signal back to base band, thus allowing an ADSL signal source to simultaneously utilize the telephone line with an ISDN signal source, without significantly reducing ADSL throughput.
摘要翻译： ADSL接收机（200）从双绞铜线（18）上的远程终端（32）接收上游修改的ADSL信号和ISDN信号。远程终端（32）的ADSL发射机（100）在ISDN频率范围之外的频率范围内发送ADSL信号，使得ADSL信号不与ISDN信号的频率范围重叠。在一个实施例中，ADSL接收器（200）包括带通滤波器（201），模数转换器（203），抽取器（205），快速傅里叶变换（210）和数字信号处理器 212）。抽取器（205）将ADSL信号转换回基带，从而允许ADSL信号源同时利用电话线与ISDN信号源，而不显着降低ADSL吞吐量。

5. 发明授权

US5781728A Flexible asymmetrical digital subscriber line ADSL transmitter, remote terminal using same, and method therefor 失效
标题翻译：灵活的非对称数字用户线ADSL发射机，远程终端使用相同，及其方法
公开(公告)号：US5781728A
公开(公告)日：1998-07-14
申请号：US616819
申请日：1996-03-15
申请人： Mathew A. Rybicki , Michael R. May , Matthew A. Pendleton , Terence L. Johnson , Peter R. Molnar
发明人： Mathew A. Rybicki , Michael R. May , Matthew A. Pendleton , Terence L. Johnson , Peter R. Molnar
IPC分类号： H04J11/00 , H04L5/06 , H04L27/00 , H04M3/00 , H04M11/00 , H04Q11/04 , H04J1/02
CPC分类号： H04Q11/0435 , H04L27/0002 , H04L5/06 , H04Q2213/13034 , H04Q2213/13107 , H04Q2213/1313 , H04Q2213/1319 , H04Q2213/13199 , H04Q2213/13209 , H04Q2213/13376 , H04Q2213/13396
摘要： A flexible asymmetrical digital subscriber line (ADSL) transmitter is able to operate simultaneously with integrated services digital network (ISDN) terminal equipment (TE) using a common telephone line (18). The ADSL transmitter changes the frequency content of a frequency-encoded ADSL signal (104) so that its frequency content does not overlap the frequency content of the ISDN TE signal. A corresponding ADSL receiver located within a central office (CO) adapts to the changed frequency content, allowing the ADSL signal to be transmitted over the telephone line without substantial loss of signal integrity. In one embodiment, an ADSL transmitter (100) converts ADSL symbols making up the frequency-encoded ADSL signal (104) into a corresponding time domain signal. The transmitter (100) then interpolates the time domain signal and high pass filters the interpolated signal. This high pass filtered signal is then converted to analog form, bandpass filtered, and driven onto the telephone line (18).
摘要翻译：灵活的非对称数字用户线（ADSL）发射机能够使用公用电话线（18）与综合业务数字网（ISDN）终端设备（TE）同时工作。 ADSL发射机改变频率编码ADSL信号（104）的频率内容，使其频率内容不与ISDN TE信号的频率内容重叠。位于中心局（CO）内的对应的ADSL接收机适应于改变的频率内容，允许ADSL信号通过电话线传输，而不会显着损失信号完整性。在一个实施例中，ADSL发射机（100）将构成频率编码的ADSL信号（104）的ADSL符号转换成对应的时域信号。然后，发射机（100）内插时域信号，并对内插信号进行高通滤波。然后将该高通滤波信号转换为模拟形式，经过滤波，并被驱动到电话线路（18）上。

6. 发明授权

US5835536A Method and apparatus for reducing peak-to-average requirements in multi-tone communication circuits 失效
标题翻译：用于减少多音通信电路中的峰值与平均要求的方法和装置
公开(公告)号：US5835536A
公开(公告)日：1998-11-10
申请号：US383026
申请日：1995-02-02
申请人： Michael R. May , Terence L. Johnson , Matthew A. Pendleton
发明人： Michael R. May , Terence L. Johnson , Matthew A. Pendleton
IPC分类号： H04L27/26 , H04L27/34 , H04K1/10
CPC分类号： H04L27/3411 , H04L27/2614 , H04L27/2618
摘要： A symbol generator (804) generates a time-domain discrete multi-tone symbol (810). A magnitude comparator (812) compares the magnitude of the time-domain discrete multi-tone symbol (810) with a magnitude threshold. When the magnitude of the time-domain discrete multi-tone symbol (810) compares unfavorably to the magnitude threshold, a magnitude adjusting symbol (816) is added to the time-domain discrete multi-tone symbol (810) such that the magnitude of the time-domain discrete multi-tone symbol (810) is reduced, thereby reducing the peak-to-average requirements (PAR).
摘要翻译：符号生成器（804）生成时域离散多色调符号（810）。幅度比较器（812）将时域离散多音调符号（810）的幅度与幅度阈值进行比较。当时域离散多音调符号（810）的大小与幅度阈值不利地比较时，幅度调整符号（816）被加到时域离散多音调符号（810），使得降低了时域离散多音调符号（810），从而降低了峰值平均要求（PAR）。

7. 发明授权

US08510440B2 Simulation of computer application function to assist a user 失效
标题翻译：模拟计算机应用功能来协助用户
公开(公告)号：US08510440B2
公开(公告)日：2013-08-13
申请号：US10226727
申请日：2002-08-22
申请人： Andrew Coleman , Janet E. Geddes , Michael R. May
发明人： Andrew Coleman , Janet E. Geddes , Michael R. May
IPC分类号： G06F15/173
CPC分类号： G06Q30/04
摘要： A method and system for assisting a user having a role and a qualification. In accordance with this method, a software tool is provided that is adapted to limit a user to a functional limitation predefined by a first role and a data access limitation predefined by a qualification. The method comprises the steps of receiving a request for assistance from said user, accessing said software tool with a customer care role having a view functionality only limitation, and simulating said first role and said qualification while operating in said customer care role, to assist said user. In the preferred embodiment, the simulation functionalities that the customer care role has, enable that customer care role to simulate update and create functionalities. Also, preferably, the customer care role may use the user's identification to obtain access to the software tool.
摘要翻译：一种用于协助具有角色和资格的用户的方法和系统。根据该方法，提供了一种软件工具，其适于将用户限制为由第一角色预定义的功能限制和由资格预定义的数据访问限制。该方法包括以下步骤：从所述用户接收帮助请求，使用仅具有视图功能限制的客户关怀角色访问所述软件工具，以及在所述客户关怀角色中操作时模拟所述第一角色和所述资格，以协助所述用户。在优选实施例中，客户关怀角色具有的模拟功能使客户关怀角色能够模拟更新并创建功能。此外，优选地，客户关怀角色可以使用用户的标识来获得对软件工具的访问。

8. 发明申请

US20120244825A1 Statistical Gain Control In A Receiver 有权
标题翻译：接收器中的统计增益控制
公开(公告)号：US20120244825A1
公开(公告)日：2012-09-27
申请号：US13070683
申请日：2011-03-24
申请人： Brian D. Green , Jing Li , Thomas Glen Ragan , Michael R. May
发明人： Brian D. Green , Jing Li , Thomas Glen Ragan , Michael R. May
IPC分类号： H04B17/00
CPC分类号： H03G3/3073 , H03G3/3052 , H04B17/318
摘要： A radio frequency (RF) signal is received in a receiver, and various counts based on information from the signal can be obtained. Counts of a number of samples of the RF signal exceeding first and second thresholds can be accumulated during an accumulation window. From the first of these counts, it can be determined if the count exceeds a first metric corresponding to a first predetermined count value, and if so, a gain of an RF gain element can be reduced. From the second of these counts it can be determined if this count exceeds a second metric corresponding to a second predetermined count value, and if not, the gain can be increased.
摘要翻译：在接收机中接收射频（RF）信号，并且可以获得基于来自信号的信息的各种计数。可以在累积窗口期间累积超过第一和第二阈值的RF信号的多个样本的计数。从这些计数中的第一个可以确定计数是否超过对应于第一预定计数值的第一度量，如果是，则可以减小RF增益元件的增益。从这些计数中的第二个可以确定该计数是否超过对应于第二预定计数值的第二度量，如果不是，则可以增加增益。

9. 发明授权

US07940132B2 Clock system and applications thereof 有权
标题翻译：时钟系统及其应用
公开(公告)号：US07940132B2
公开(公告)日：2011-05-10
申请号：US11862312
申请日：2007-09-27
申请人： Michael R. May , Raymond L. Vargas
发明人： Michael R. May , Raymond L. Vargas
IPC分类号： H03K21/10
CPC分类号： H03L7/0995 , G06F1/06
摘要： A clock system includes a phase locked loop, a phase divider, and a control module. The phase locked loop (PLL) produces a plurality of phase-offset output oscillations. The phase divider generates a clock signal from one or more of the plurality of phase-offset output oscillations based on a phase divider control signal. The control module generates the phase divider control signal based on a desired setting for the clock signal.
摘要翻译：时钟系统包括锁相环，相位分配器和控制模块。锁相环（PLL）产生多个相位偏移输出振荡。相位分离器基于相位分配器控制信号从多个相位偏移输出振荡中的一个或多个产生时钟信号。控制模块基于时钟信号的期望设置产生相位分配器控制信号。

10. 发明授权

US07809345B2 Digital PLL and applications thereof 有权
标题翻译：数字PLL及其应用
公开(公告)号：US07809345B2
公开(公告)日：2010-10-05
申请号：US11796057
申请日：2007-04-26
申请人： Michael R. May
发明人： Michael R. May
IPC分类号： H04B1/06
CPC分类号： H03L7/081 , H03L7/089 , H03L7/0996 , H03L7/1974 , H03L2207/50
摘要： A digital phase locked loop (PLL) includes a digital phase detector, a digital loop filter, a digitally controlled oscillation module, and a variable feedback divider. The digital phase detector is coupled to produce a difference signal based on a phase difference between a reference oscillation and a feedback oscillation. The digital loop filter is coupled to process the difference signal to produce a control signal. The digitally controlled oscillation module is coupled to generate an output oscillation based on the control signal. The variable feedback divider is coupled to produce the feedback oscillation from the output oscillation based on a divider value and a controlled variable delay.
摘要翻译：数字锁相环（PLL）包括数字相位检测器，数字环路滤波器，数字控制振荡模块和可变反馈分频器。数字相位检测器被耦合以基于参考振荡和反馈振荡之间的相位差产生差分信号。数字环路滤波器被耦合以处理差分信号以产生控制信号。数字控制振荡模块被耦合以基于控制信号产生输出振荡。可变反馈分压器被耦合以基于分频器值和受控变量延迟从输出振荡产生反馈振荡。

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