公开(公告)号：US09344961B2

公开(公告)日：2016-05-17

申请号：US13553328

申请日：2012-07-19

Applicant: Curtis Ling ,  Timothy Gallagher ,  Sridhar Ramesh

Inventor： Curtis Ling ,  Timothy Gallagher ,  Sridhar Ramesh

IPC: G06F1/32 ,  H04W52/02

CPC classification number: H04L7/0033 ,  G06F1/3209 ,  G06F1/3234 ,  G06F1/3278 ,  H04L12/2801 ,  H04W52/02 ,  Y02D10/157 ,  Y02D50/20 ,  Y02D70/00 ,  Y02D70/168

Abstract: A network device (e.g., a cable modem) may support a normal mode of operation and a sleep mode of operation. While in the normal mode, a PHY of the network device may process a received signal to recover MPEG-TS packets, and convey the MPEG-TS packets to other components of the network device for further processing. While in the sleep mode, the PHY may process received MPEG-TS packets having a particular packet identifier and drop received MPEG-TS packets not having the particular packet identifier. The PHY may control transitions between the normal mode and the sleep mode in response to received signals having particular physical layer characteristics. The PHY may demodulate a received signal to recover an MPEG-TS packet; descramble portions of the MPEG-TS packet; inspect portions of the MPEG-TS packet; and control a mode of operation of the network device based on the contents of the MPEG transport stream.

Abstract translation: 网络设备（例如，电缆调制解调器）可以支持正常操作模式和睡眠操作模式。 在正常模式下，网络设备的PHY可以处理接收到的信号以恢复MPEG-TS分组，并将MPEG-TS分组传送到网络设备的其他组件以进一步处理。 在睡眠模式下，PHY可以处理具有特定分组标识符的接收的MPEG-TS分组，并且丢弃没有特定分组标识符的接收到的MPEG-TS分组。 响应于具有特定物理层特性的接收信号，PHY可以控制正常模式和睡眠模式之间的转换。 PHY可以解调接收的信号以恢复MPEG-TS分组; MPEG-TS分组的解扰部分; 检查MPEG-TS分组的部分; 并且基于MPEG传输流的内容来控制网络设备的操作模式。

公开(公告)号：US08798211B2

公开(公告)日：2014-08-05

申请号：US13845377

申请日：2013-03-18

Applicant: James Qiu ,  Sridhar Ramesh ,  Sheng Ye ,  Curtis Ling

Inventor： James Qiu ,  Sridhar Ramesh ,  Sheng Ye ,  Curtis Ling

IPC: H04L27/06 ,  H03G3/20 ,  H04L1/20 ,  H04B1/10 ,  H04W52/02

CPC classification number: H04W52/0245 ,  H03G3/20 ,  H04B1/109 ,  H04B17/00 ,  H04L1/20 ,  H04L27/06 ,  H04W88/02 ,  Y02D70/00 ,  Y02D70/40

Abstract: A communication receiver which applies signal processing for quantitatively estimating receive signal factors such as communication channel quality, signal characteristics, and overall system received bit error rate (BER) or packet error rate (PER) and which applies a general algorithm for mapping these estimated factors to control receiver performance and minimize power consumption.

Abstract translation: 一种通信接收机，其应用信号处理，用于定量估计诸如通信信道质量，信号特征和总体系统接收误比特率（BER）或分组差错率（PER）的接收信号因子，并且其应用用于映射这些估计因子的通用算法 以控制接收机性能并降低功耗。

公开(公告)号：US08711750B2

公开(公告)日：2014-04-29

申请号：US13553175

申请日：2012-07-19

Applicant: Curtis Ling ,  Timothy Gallagher ,  Sridhar Ramesh

Inventor： Curtis Ling ,  Timothy Gallagher ,  Sridhar Ramesh

IPC: H04L12/26 ,  G08C17/00 ,  H04B1/38 ,  H04N7/173 ,  G06F1/32

CPC classification number: H04L7/0033 ,  G06F1/3209 ,  G06F1/3234 ,  G06F1/3278 ,  H04L12/2801 ,  H04W52/02 ,  Y02D10/157 ,  Y02D50/20 ,  Y02D70/00 ,  Y02D70/168

Abstract: A network device may be operable to receive an indication from a cable modem termination system (CMTS) that media access control (MAC) management messages will be transmitted by the CMTS at fixed intervals. Subsequent to receiving the indication, the network device may be operable to power down one or more components of the network device and set a sleep timer to a value equal to an integer multiple of the fixed interval minus a transition period. The network device may power up the one or more components of the network device upon expiration of the sleep timer. The network device may power up the one or more components of the network device upon an amount of traffic in a buffer of the network device reaching a threshold.

Abstract translation: 网络设备可以用于从电缆调制解调器终端系统（CMTS）接收指示，媒体接入控制（MAC）管理消息将由CMTS以固定的间隔发送。 在接收到指示之后，网络设备可以用于对网络设备的一个或多个组件断电并将休眠定时器设置为等于固定间隔减去过渡周期的整数倍的值。 网络设备可以在睡眠定时器到期时为网络设备的一个或多个组件供电。 网络设备可以在网络设备的缓冲器中的业务量达到阈值时对网络设备的一个或多个组件加电。

公开(公告)号：US20140010269A1

公开(公告)日：2014-01-09

申请号：US13937143

申请日：2013-07-08

Applicant: Curtis Ling ,  Tim Gallagher ,  Sridhar Ramesh

Inventor： Curtis Ling ,  Tim Gallagher ,  Sridhar Ramesh

IPC: H04L1/20

CPC classification number: H04L1/20 ,  H04B3/00 ,  H04B3/46

Abstract: A cable modem (CM) device captures signals over a wide spectrum including one or more cable frequency bands and sub-bands, and extracts one or more cable channels from the captured signals. The CM device is operable to analyze the extracted one or more cable channels and assigns a portion of the extracted one or more cable channels for upstream and/or downstream communication based on the analysis. The CM device may recapture one or more previously unused cable channels to be utilized for the upstream and/or downstream communication based on the analysis. The CM device may determine noise, interference and/or blocker information corresponding to the extracted one or more cable channels based on the analysis. Based on the determined noise, interference and/or blocker information, the cable modem termination system (CMTS) may assign or block usage of one or more cable channels for the upstream and/or downstream communication.

Abstract translation: 电缆调制解调器（CM）设备通过包括一个或多个有线频带和子频带在内的宽频谱捕获信号，并从捕获的信号中提取一个或多个有线信道。 CM设备可操作以基于分析来分析所提取的一个或多个有线信道并分配用于上行和/或下行通信的所提取的一个或多个有线信道的一部分。 基于分析，CM设备可以重新捕获用于上游和/或下游通信的一个或多个先前未使用的有线信道。 基于分析，CM设备可以确定与所提取的一个或多个有线信道相对应的噪声，干扰和/或阻塞信息。 基于确定的噪声，干扰和/或阻塞信息，电缆调制解调器终端系统（CMTS）可以分配或阻止用于上游和/或下游通信的一个或多个有线信道的使用。

公开(公告)号：US20130238922A1

公开(公告)日：2013-09-12

申请号：US13866205

申请日：2013-04-19

Applicant: Curtis Ling ,  Timothy Gallagher ,  Sridhar Ramesh

Inventor： Curtis Ling ,  Timothy Gallagher ,  Sridhar Ramesh

IPC: G06F1/32

CPC classification number: H04L7/0033 ,  G06F1/3209 ,  G06F1/3234 ,  G06F1/3278 ,  H04L12/2801 ,  H04W52/02 ,  Y02D10/157 ,  Y02D50/20 ,  Y02D70/00 ,  Y02D70/168

Abstract: A network device may be operable to receive an indication from a cable modem termination system (CMTS) that media access control (MAC) management messages will be transmitted by the CMTS at fixed intervals. Subsequent to receiving the indication, the network device may be operable to power down one or more components of the network device and set a sleep timer to a value equal to an integer multiple of the fixed interval minus a transition period. The network device may power up the one or more components of the network device upon expiration of the sleep timer. The network device may power up the one or more components of the network device upon an amount of traffic in a buffer of the network device reaching a threshold.

Abstract translation: 网络设备可以用于从电缆调制解调器终端系统（CMTS）接收指示，媒体接入控制（MAC）管理消息将由CMTS以固定的间隔发送。 在接收到指示之后，网络设备可以用于对网络设备的一个或多个组件断电并将休眠定时器设置为等于固定间隔减去过渡周期的整数倍的值。 网络设备可以在睡眠定时器到期时为网络设备的一个或多个组件供电。 网络设备可以在网络设备的缓冲器中的业务量达到阈值时对网络设备的一个或多个组件加电。

公开(公告)号：US20080209499A1

公开(公告)日：2008-08-28

申请号：US12036949

申请日：2008-02-25

Applicant: Sridhar Ramesh ,  Curtis Ling ,  Ramakrishna Akella ,  Brenndon Lee

Inventor： Sridhar Ramesh ,  Curtis Ling ,  Ramakrishna Akella ,  Brenndon Lee

IPC: H04N7/16

CPC classification number: H04H60/43 ,  H04H20/26 ,  H04H20/40 ,  H04H60/11 ,  H04N21/41407 ,  H04N21/4384

Abstract: A wireless communication system is enhanced to allow for low-latency channel surfing and to enable a user to quickly see the content carried over a selected channel while searching channels for desired content. The techniques for reducing the channel change latency may be implemented in a transmitter, receiver, or in a combination of transmitter and receiver. The wireless communication system is optionally a DVB-H communication system. The transmitter may generate and transmit one or more auxiliary channels, where each auxiliary channel contains reduced resolution content corresponding to one or more channels. The receiver may process the one or more auxiliary channels to present the reduced resolution content while processing the full resolution channel for display. The receiver caches portions of content from one or more non-selected channels and presents the cached content when the channel is selected while concurrently searching and processing the full resolution channel content.

Abstract translation: 增强无线通信系统以允许低等待时间的信道冲浪，并且使得用户能够在搜索频道寻找所需内容的同时快速查看通过所选频道载入的内容。 用于减少信道改变等待时间的技术可以在发射机，接收机或发射机和接收机的组合中实现。 无线通信系统可选地是DVB-H通信系统。 发射机可以生成和发送一个或多个辅助信道，其中每个辅助信道包含对应于一个或多个信道的降低的分辨率内容。 接收机可以处理一个或多个辅助信道以呈现降低的分辨率内容，同时处理用于显示的全分辨率信道。 接收器从一个或多个非选择的信道缓存部分内容，并且在同时搜索和处理全分辨率信道内容的同时选择信道时呈现缓存的内容。

公开(公告)号：US08687535B2

公开(公告)日：2014-04-01

申请号：US13553195

申请日：2012-07-19

Applicant: Curtis Ling ,  Timothy Gallagher ,  Sridhar Ramesh

Inventor： Curtis Ling ,  Timothy Gallagher ,  Sridhar Ramesh

IPC: G08C17/00

CPC classification number: H04L7/0033 ,  G06F1/3209 ,  G06F1/3234 ,  G06F1/3278 ,  H04L12/2801 ,  H04W52/02 ,  Y02D10/157 ,  Y02D50/20 ,  Y02D70/00 ,  Y02D70/168

Abstract: A CMTS may receive a request that a network device be permitted to enter a power-saving mode of operation. In response, the CMTS may enter a power-saving mode of operation wherein MAC management messages, transmission opportunities for the sleeping network device, and/or contention periods on one or more channels occur at independently determinable intervals. The CMTS may then transmit a message granting the network device permission to enter the power-saving mode of operation. The CMTS may start a sleep timer upon transmitting the MAC management message and may deregister the network device if no communication is received from the network device prior to expiration of the sleep timer. The CMTs may buffer traffic destined for the network device in a buffer of the CMTS while the network device is in the power-saving mode of operation, and may wake the network device upon the amount of buffered traffic reaching a threshold.

Abstract translation: CMTS可以接收允许网络设备进入省电模式的请求。 作为响应，CMTS可以进入功率节省模式，其中MAC管理消息，睡眠网络设备的传输机会和/或一个或多个信道上的争用周期以独立可确定的间隔发生。 然后，CMTS可以发送授权网络设备许可进入节电操作模式的消息。 CMTS可以在发送MAC管理消息时启动睡眠定时器，并且如果在睡眠定时器期满之前没有从网络设备接收到通信，则可以注销网络设备。 当网络设备处于节电操作模式时，CMT可以缓冲在CMTS的缓冲器中的网络设备的流量，并且可以在缓冲流量达到阈值时唤醒网络设备。

公开(公告)号：US20130094416A1

公开(公告)日：2013-04-18

申请号：US13553328

申请日：2012-07-19

Applicant: Curtis Ling ,  Timothy Gallagher ,  Sridhar Ramesh

Inventor： Curtis Ling ,  Timothy Gallagher ,  Sridhar Ramesh

IPC: H04W52/02 ,  H04B1/38

CPC classification number: H04L7/0033 ,  G06F1/3209 ,  G06F1/3234 ,  G06F1/3278 ,  H04L12/2801 ,  H04W52/02 ,  Y02D10/157 ,  Y02D50/20 ,  Y02D70/00 ,  Y02D70/168

Abstract: A network device (e.g., a cable modem) may support a normal mode of operation and a sleep mode of operation. While in the normal mode, a PHY of the network device may process a received signal to recover MPEG-TS packets, and convey the MPEG-TS packets to other components of the network device for further processing. While in the sleep mode, the PHY may process received MPEG-TS packets having a particular packet identifier and drop received MPEG-TS packets not having the particular packet identifier. The PHY may control transitions between the normal mode and the sleep mode in response to received signals having particular physical layer characteristics. The PHY may demodulate a received signal to recover an MPEG-TS packet; descramble portions of the MPEG-TS packet; inspect portions of the MPEG-TS packet; and control a mode of operation of the network device based on the contents of the MPEG transport stream.

Abstract translation: 网络设备（例如，电缆调制解调器）可以支持正常操作模式和睡眠操作模式。 在正常模式下，网络设备的PHY可以处理接收到的信号以恢复MPEG-TS分组，并将MPEG-TS分组传送到网络设备的其他组件以进一步处理。 在睡眠模式下，PHY可以处理具有特定分组标识符的接收的MPEG-TS分组，并且丢弃没有特定分组标识符的接收到的MPEG-TS分组。 响应于具有特定物理层特性的接收信号，PHY可以控制正常模式和睡眠模式之间的转换。 PHY可以解调接收的信号以恢复MPEG-TS分组; MPEG-TS分组的解扰部分; 检查MPEG-TS分组的部分; 并且基于MPEG传输流的内容来控制网络设备的操作模式。

公开(公告)号：US20130094415A1

公开(公告)日：2013-04-18

申请号：US13553195

申请日：2012-07-19

Applicant: Curtis Ling ,  Timothy Gallagher ,  Sridhar Ramesh

Inventor： Curtis Ling ,  Timothy Gallagher ,  Sridhar Ramesh

IPC: H04W52/02

CPC classification number: H04L7/0033 ,  G06F1/3209 ,  G06F1/3234 ,  G06F1/3278 ,  H04L12/2801 ,  H04W52/02 ,  Y02D10/157 ,  Y02D50/20 ,  Y02D70/00 ,  Y02D70/168

Abstract: A CMTS may receive a request that a network device be permitted to enter a power-saving mode of operation. In response, the CMTS may enter a power-saving mode of operation wherein MAC management messages, transmission opportunities for the sleeping network device, and/or contention periods on one or more channels occur at independently determinable intervals. The CMTS may then transmit a message granting the network device permission to enter the power-saving mode of operation. The CMTS may start a sleep timer upon transmitting the MAC management message and may deregister the network device if no communication is received from the network device prior to expiration of the sleep timer. The CMTs may buffer traffic destined for the network device in a buffer of the CMTS while the network device is in the power-saving mode of operation, and may wake the network device upon the amount of buffered traffic reaching a threshold.

Abstract translation: CMTS可以接收允许网络设备进入省电模式的请求。 作为响应，CMTS可以进入功率节省模式，其中MAC管理消息，睡眠网络设备的传输机会和/或一个或多个信道上的争用周期以独立可确定的间隔发生。 然后，CMTS可以发送授权网络设备许可进入节电操作模式的消息。 CMTS可以在发送MAC管理消息时启动睡眠定时器，并且如果在睡眠定时器期满之前没有从网络设备接收到通信，则可以注销网络设备。 当网络设备处于节电操作模式时，CMT可以缓冲在CMTS的缓冲器中的网络设备的流量，并且可以在缓冲流量达到阈值时唤醒网络设备。

公开(公告)号：US20130097240A1

公开(公告)日：2013-04-18

申请号：US13485034

申请日：2012-05-31

Applicant: Curtis Ling ,  Timothy Gallagher ,  Sridhar Ramesh

Inventor： Curtis Ling ,  Timothy Gallagher ,  Sridhar Ramesh

IPC: G06F15/16

CPC classification number: H04L7/0033 ,  G06F1/3209 ,  G06F1/3234 ,  G06F1/3278 ,  H04L12/2801 ,  H04W52/02 ,  Y02D10/157 ,  Y02D50/20 ,  Y02D70/00 ,  Y02D70/168

Abstract: A network device may be operable to manage a network connection of customer premise equipment (CPE). While the CPE is operating in a normal mode of operation, the network device may communicate with the CPE utilizing one or more messages of a first type. While the CPE is operating in a low-power mode of operation, the network device may communicate with the CPE utilizing one or more messages of a second type. The network device may be operable to determine a particular program identifier to be utilized for messages the first type of message, and transmit such message(s) to the CPE. The message(s) transmitted while the CPE is in a low-power mode may comprise MPEG-TS packets having the particular program identifier. The message(s) transmitted while the CPE is not in the low-power mode may comprises MPEG-TS packets not having the particular program identifier.

Abstract translation: 网络设备可以用于管理客户驻地设备（CPE）的网络连接。 当CPE以正常操作模式运行时，网络设备可以利用第一类型的一个或多个消息与CPE进行通信。 当CPE以低功率操作模式工作时，网络设备可以利用第二类型的一个或多个消息与CPE进行通信。 网络设备可以用于确定要用于消息第一类型的消息的特定节目标识符，并将这样的消息发送到CPE。 在CPE处于低功率模式时发送的消息可以包括具有特定节目标识符的MPEG-TS分组。 在CPE不处于低功率模式时发送的消息可以包括不具有特定节目标识符的MPEG-TS分组。