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1. 发明授权

US5404544A System for periodically transmitting signal to/from sleeping node identifying its existence to a network and awakening the sleeping node responding to received instruction 失效
标题翻译：用于向睡眠节点周期性地向睡眠节点发送信号以将其存在识别到网络并且响应于接收到的指令唤醒睡眠节点的系统
公开(公告)号：US5404544A
公开(公告)日：1995-04-04
申请号：US894016
申请日：1992-06-05
申请人： Ian Crayford
发明人： Ian Crayford
IPC分类号： H04L12/28 , G06F1/32 , H04L12/10 , H04L12/12 , H04L12/26 , H04L12/44 , G06F13/38 , G06F1/30
CPC分类号： G06F1/3215 , H04L12/10 , H04L12/12 , H04L12/44 , H04L43/0811 , Y02B60/32 , Y02B60/34 , Y02B60/35
摘要： One of the fundamental benefits of the 10BASE-T physical interface for 802.3/Ethernet is that the health of the communications link can be permanently monitored. When in the "link good" condition, the 10BASE-T transceiver is required to output a link status (LNKST) signal to this effect. Media Access Controller (MAC) 30, with an embedded 10BASE-T transceiver (37), uses the LNKST signal to provide power management to the MAC (30). By using the programmable AWAKE bit, the receive section of the 10BASE-T transceiver (37) can remain powered, even if the SLEEP input to the MAC (30) is activated. This allows the transceiver (37) to detect a link beat pulse (60) or receive packet activity. If either receive condition is encountered, the internal transceiver (37) will activate the LNKST output from the MAC (30). The system hardware and/or software can use the LNKST output to take appropriate action. For instance, if the LNKST output is active (low), then the computer is connected to an active network, and it is likely that the operating system will allow the MAC (30) to remain powered. However, if the LNKST becomes inactive (high) then the system can assume that the link is inactive, and the MAC can be powered down to save power. If at a later time the link is re-established, the MAC (30) can be powered back up to take advantage of the communications channel. In this way, the power consumption of the Ethernet connection can be managed by the operating software/hardware.
摘要翻译： 802.3 / Ethernet 10BASE-T物理接口的基本优点之一是可以永久监控通信链路的运行状况。当处于“链路良好”状态时，10BASE-T收发器需要输出链路状态（LNKST）信号。具有嵌入式10BASE-T收发器（37）的媒体访问控制器（MAC）30使用LNKST信号向MAC（30）提供电力管理。通过使用可编程AWAKE位，即使对MAC（30）的SLEEP输入被激活，10BASE-T收发器（37）的接收部分也可以保持供电。这允许收发器（37）检测链路脉搏（60）或接收分组活动。如果遇到任一接收条件，内部收发器（37）将激活MAC（30）的LNKST输出。系统硬件和/或软件可以使用LNKST输出采取适当的措施。例如，如果LNKST输出有效（低电平），则计算机连接到活动网络，并且操作系统很可能允许MAC（30）保持供电。然而，如果LNKST变为不活动（高），则系统可以假定链路不活动，并且MAC可以掉电以节省功率。如果在稍后的时间重新建立链路，则MAC（30）可以被加电以利用通信信道。这样，以太网连接的功耗可由操作软件/硬件来管理。

2. 发明授权

US5983353A System and method for activating a deactivated device by standardized messaging in a network 失效
标题翻译：用于通过网络中的标准化消息来激活去激活设备的系统和方法
公开(公告)号：US5983353A
公开(公告)日：1999-11-09
申请号：US784561
申请日：1997-01-21
申请人： Stanley E. McHann, Jr.
发明人： Stanley E. McHann, Jr.
IPC分类号： G06F1/32 , H04L12/12 , G06F13/38 , G06F1/30
CPC分类号： G06F1/3209 , H04L12/12 , Y02B60/34 , Y02B60/35
摘要： A device connected to a network operates in a plurality of states including an execution state and a low-power state. During operation in the low-power state, the device is activated to an execution state in response to standard messages such as Ethernet messages. A receiving device connected to a network is activated from a suspended or low-power state by the receipt of a message from a sending device. The message necessarily includes a unique Ethernet address identifying the destination device in accordance with a standard specification, such as the IEEE 802.3 specification. The receiving device reads the unique Ethernet address of the message, determines a type classification of the message content, and determines whether to become activate or remain in the low-power state on the basis of the Ethernet address and the message type.
摘要翻译：连接到网络的设备在包括执行状态和低功率状态的多种状态下工作。在处于低功率状态的操作期间，响应于诸如以太网消息的标准消息，该设备被激活到执行状态。连接到网络的接收设备通过从发送设备接收到消息从暂停或低功率状态激活。消息必须包括根据诸如IEEE 802.3规范的标准规范识别目的地设备的唯一以太网地址。接收设备读取消息的唯一以太网地址，确定消息内容的类型分类，并且基于以太网地址和消息类型确定是否激活或保持在低功率状态。

3. 发明授权

US6026494A Algorithm to reduce power consumption of an auto-negotiating ethernet transceiver 失效
标题翻译：降低自动协商以太网收发器功耗的算法
公开(公告)号：US6026494A
公开(公告)日：2000-02-15
申请号：US063977
申请日：1998-04-21
申请人： Jay Arnold Foster
发明人： Jay Arnold Foster
IPC分类号： G06F1/32 , H04L12/12 , H04L12/413 , H04L29/00
CPC分类号： H04L12/40136 , G06F1/3209 , H04L12/12 , H04L12/40039 , Y02B60/31 , Y02B60/34 , Y02B60/35
摘要： A method and apparatus for reducing power consumption of an auto-negotiating ethernet transceiver by enabling a driver for the transceiver to alternate between a typical higher-power energy consumption mode to a lower-power energy consumption mode when a network link is no longer detected by the transceiver. A new algorithm is included within the driver which is activated by the driver detecting the absence of the network link. The driver causes the portable computer to send instructions to the ethernet transceiver so that the transceiver continues to check for the network link. If the network link is not detected, the driver causes the ethernet transceiver to power down into a lower power consumption mode for a specific period of time. After the period of time has elapsed, the driver causes the ethernet transceiver to enter a normal higher power consumption mode during which the ethernet transceiver again checks for the network link. This process repeats itself until the portable computer is shut down or the network link is reestablished.
摘要翻译：一种用于通过使无线电收发器的驱动器在典型的较高功率能量消耗模式与低功率能量消耗模式之间交替的方法和装置，当网络链路不再被收发器。驱动程序中包含一个新的算法，该驱动程序由驱动程序检测到网络链路不存在而被激活。驱动程序使便携式计算机向以太网收发器发送指令，以便收发器继续检查网络链路。如果没有检测到网络链路，驱动程序会使以太网收发器在一段特定的时间内掉电到较低的功耗模式。经过一段时间后，驱动程序使以太网收发器进入正常的较高功耗模式，在此期间以太网收发器再次检查网络链路。该过程重复，直到便携式计算机关闭或网络链路重新建立。

4. 发明授权

US6134665A Computer with remote wake up and transmission of a status packet when the computer fails a self test 失效
标题翻译：计算机具有远程唤醒和当计算机自检失败时传送状态数据包
公开(公告)号：US6134665A
公开(公告)日：2000-10-17
申请号：US9809
申请日：1998-01-20
申请人： Philippe Klein , Simoni Ben-Michael , Avraham Menachem , Sarit Shvimmer
发明人： Philippe Klein , Simoni Ben-Michael , Avraham Menachem , Sarit Shvimmer
IPC分类号： G06F1/32 , H04L12/12 , H04L12/407 , H04L29/14 , E06F1/26
CPC分类号： H04L12/10 , G06F1/3209 , H04L12/12 , H04L69/40 , H04L12/40032 , Y02B60/34 , Y02B60/35
摘要： An apparatus for use in a computer has a network interface subsystem having power applied thereto when power is removed from other components of the computer. A receiver in the network interface subsystem receives a packet directed to the computer from the network, and in response to receipt of a selected packet, restores power to the other components of the computer. Upon restoration of power to the other components of the computer, a signalling device reports status of at least one of the other components of the computer to the network interface subsystem. A transmitter in the network interface subsystem sends, in response to the signalling device, a status packet onto the network giving a status of the computer in the event that a component is not functional, following restoration of power to the other components of the computer. The computer has a processor which executes a self test upon restoration of power to the processor, and a self test signalling device to signal to the network interface subsystem the results of the self test, to initiate transmission of a status packet by the network interface onto the network in the event that the computer fails the self test. The signalling device may be a management bus, and the management bus may operate under the I2C protocol. The receiver uses imperfect filtering to identify a wake up packet, and also may use a mask in performing imperfect filtering.
摘要翻译：用于计算机的装置具有网络接口子系统，当从计算机的其它部件移除电源时，该网络接口子系统具有施加到其上的功率。网络接口子系统中的接收机从网络接收指向计算机的分组，并且响应于接收到所选择的分组，恢复计算机的其他组件的电力。当恢复到计算机的其他部件的电力时，信令装置将计算机的其他部件中的至少一个的状态报告给网络接口子系统。网络接口子系统中的发射机在恢复对计算机的其他部件的电源之后，响应于信令装置向网络发送状态分组，该状态分组在组件不起作用的情况下给出计算机的状态。计算机具有处理器，其在恢复对处理器的电力时执行自检;以及自检信号装置，向网络接口子系统发信号通知自测试结果，以启动由网络接口传送状态分组到计算机无法自检的情况下的网络。信令设备可以是管理总线，并且管理总线可以在I2C协议下操作。接收机使用不完美的过滤来识别唤醒分组，并且也可以在执行不完美的过滤时使用掩码。

5. 发明授权

US09049120B1 Method and system for operating a communication circuit during a low-power state 有权
标题翻译：在低功率状态下操作通信电路的方法和系统
公开(公告)号：US09049120B1
公开(公告)日：2015-06-02
申请号：US13175740
申请日：2011-07-01
申请人： Divya Vijayaraghavan , Chong H. Lee
发明人： Divya Vijayaraghavan , Chong H. Lee
IPC分类号： H04L27/00 , H04L12/24
CPC分类号： H04L41/0833 , H04L12/40013 , Y02B60/35
摘要： A method and system for operating a communication circuit during periods of reduced energy consumption are disclosed. Data may be transmitted over a communication link from a first device to a second device in a low-power state. The data may be used by the second device to update coefficients and/or synchronize the receiver of the second device to a transmitter of the first device, thereby enabling a more efficient or rapid transition from the low-power state to an active state. A transmitter of the first device and a receiver of the second device may be activated before transmission of the data and deactivated after transmission of the data. In this manner, a receiver of the second device may be refreshed to enable a more efficient transition from the low-power state to an active state.
摘要翻译：公开了一种在降低能量消耗期间操作通信电路的方法和系统。数据可以通过通信链路从低功率状态从第一设备传输到第二设备。该数据可以被第二设备用来更新系统和/或将第二设备的接收机同步到第一设备的发射机，从而能够从低功率状态到活动状态的更有效或快速的转变。第一设备的发射机和第二设备的接收机可以在传输数据之前激活，并且在传输数据之后停用。以这种方式，可以刷新第二设备的接收机，以便能够从低功率状态到活动状态的更有效的转变。

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