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1. 发明授权

US06446203B1 Method and system for selecting from multiple boot code images to be loaded in a data processing system 有权
标题翻译：用于从多个引导代码图像中选择要加载到数据处理系统中的方法和系统
公开(公告)号：US06446203B1
公开(公告)日：2002-09-03
申请号：US09317552
申请日：1999-05-24
申请人： Maximino Aguilar , Norbert Blam , John William Gorrell, Jr. , Yuan-Chang Lo , James Michael Stafford
发明人： Maximino Aguilar , Norbert Blam , John William Gorrell, Jr. , Yuan-Chang Lo , James Michael Stafford
IPC分类号： G06F9445
CPC分类号： G06F9/4408
摘要： A computer system including a processor, a system memory, and a boot code storage device. The system memory is connected to the processor and is suitable for storing processor data and instructions. The boot code storage device includes an image selection indicator for indicating which of multiple boot code images are to be loaded. The computer system further includes means for initiating a boot sequence stored on the boot code storage device. The boot sequence selects from first and second boot images based upon the state of the image selection indicator and loads the selected image into the system memory in response to a boot event. In one embodiment, the image selection indicator is in an initial state until the boot code sequence successfully loads a boot image. The image selection indicator is set to a value indicative of the loaded image when one of the boot images is successfully loaded. The boot code storage sequence attempts, in the preferred embodiment, to load the previously load boot image when the system detects a setting of the image selection indicator indicative of a previously loaded boot image. In the preferred embodiment, the boot code sequence responds to a specified user input sequence by presenting the user with a configuration screen suitable for altering the value of the image selection indicator such that the user may later the boot image that will be loaded during a subsequent execution of the boot sequence. In one embodiment, the first boot image is a BIOS based boot image and the second image is a network based (non-BIOS) boot image. The boot code storage device is preferably a flash memory device.
摘要翻译：一种包括处理器，系统存储器和引导代码存储设备的计算机系统。系统存储器连接到处理器，适用于存储处理器数据和指令。引导代码存储装置包括用于指示要加载多个引导代码图像中的哪一个的图像选择指示符。计算机系统还包括用于启动存储在引导代码存储设备上的引导顺序的装置。引导顺序基于图像选择指示符的状态从第一和第二引导映像中选择，并且响应于引导事件将所选择的图像加载到系统存储器中。在一个实施例中，图像选择指示器处于初始状态，直到引导代码序列成功地加载引导映像。图像选择指示器被设置为当其中一个启动图像被成功加载时指示加载的图像的值。当系统检测到指示先前加载的引导映像的图像选择指示符的设置时，引导代码存储序列在优选实施例中尝试加载先前的加载引导映像。在优选实施例中，引导代码序列通过向用户呈现适合于改变图像选择指示符的值的配置屏幕来响应指定的用户输入序列，使得用户稍后可以在后续期间加载的引导映像执行引导顺序。在一个实施例中，第一启动映像是基于BIOS的引导映像，并且第二映像是基于网络的（非BIOS）引导映像。引导代码存储设备优选地是闪存设备。

2. 发明授权

US06415387B1 Low power mode computer with simplified power supply 失效
标题翻译：低功耗模式电脑，电源简单
公开(公告)号：US06415387B1
公开(公告)日：2002-07-02
申请号：US09211371
申请日：1998-12-14
申请人： Maximino Aguilar , John William Gorrell, Jr. , Sanjay Gupta , James Michael Stafford
发明人： Maximino Aguilar , John William Gorrell, Jr. , Sanjay Gupta , James Michael Stafford
IPC分类号： G06F1338
CPC分类号： G06F1/3203
摘要： A network computer including a motherboard powered by a power supply via a single power supply plane, a clock generator, a processor, a system memory, and a network interface. The network computer is configured to assume a low power state in response to a low power event and further configured to transition from the low power state to a full power state in response to a wake up event. The wake up event may comprise a LAN wake up in the form of a command issued by a server computer coupled to the network computer via a network. In one embodiment, the network computer lacks a disk based storage device, but includes local permanent storage comprising a compact flash card. Preferably, the network computer's clock generator is configured to produce a clock signal for the processor when the network computer is in the full power mode, and further configured to produce no clock signal in the low power mode. In one embodiment, the network computer further includes at least one peripheral device coupled to the processor via a peripheral bus, such as a PCI bus. In this embodiment, the computer is preferably configured to transition each peripheral device on the peripheral bus to a power management mode when the network computer enters low power mode. The wake up event may be a LAN wake up event in which a wake up signal is received via the network interface, or a “wake on ring” event in which the wake up signal is received via a modem connection to the computer.
摘要翻译：一种网络计算机，包括通过单个电源平面由电源供电的母板，时钟发生器，处理器，系统存储器和网络接口。网络计算机被配置为响应于低功率事件而呈现低功率状态，并且还被配置为响应于唤醒事件从低功率状态转变到全功率状态。唤醒事件可以包括以由网络耦合到网络计算机的服务器计算机发出的命令形式的LAN唤醒。在一个实施例中，网络计算机缺少基于磁盘的存储设备，但是包括包括紧凑型闪存卡的本地永久存储器。优选地，网络计算机的时钟发生器被配置为当网络计算机处于全功率模式时产生用于处理器的时钟信号，并且还被配置为在低功率模式下不产生时钟信号。在一个实施例中，网络计算机还包括经由诸如PCI总线的外围总线耦合到处理器的至少一个外围设备。在本实施例中，计算机优选地被配置为当网络计算机进入低功率模式时，将外围总线上的每个外围设备转换为电源管理模式。唤醒事件可以是LAN唤醒事件，其中经由网络接口接收到唤醒信号，或者通过到计算机的调制解调器连接接收到唤醒信号的“唤醒”事件。

3. 发明授权

US06298379B1 Apparatus and method for maintaining operational status in network computers during system management operations 有权
标题翻译：用于在系统管理操作期间维护网络计算机的操作状态的装置和方法
公开(公告)号：US06298379B1
公开(公告)日：2001-10-02
申请号：US09259138
申请日：1999-02-26
申请人： Maximino Aguilar , James A. Brewer , John William Gorrell, Jr. , Sanjay Gupta , James Michael Stafford
发明人： Maximino Aguilar , James A. Brewer , John William Gorrell, Jr. , Sanjay Gupta , James Michael Stafford
IPC分类号： G06F1300
CPC分类号： H04L41/00 , G06F13/385
摘要： A network computer (12) receives instructions from a network manager (11), including a control interrupt instruction, a system management instruction, and a release instruction. A processor (16) associated with the network computer (12) executes the control interrupt instruction first to produce a control interrupt signal. This control interrupt signal causes an operating status controller (17) associated with the network computer (12) to disable local operational status control at the network computer. After local operational status control is disabled at the network computer (12), the processor (16) executes the system management instruction and performs a system management operation at the network computer. Finally, after the system management operation is completed, the processor (16) executes the release instruction to produce a release signal. The release signal causes the operational status controller (17) to enable local operational status control at the network computer (12).
摘要翻译：网络计算机（12）从网络管理器（11）接收包括控制中断指令，系统管理指令和释放指令的指令。与网络计算机（12）相关联的处理器（16）首先执行控制中断指令以产生控制中断信号。该控制中断信号使得与网络计算机（12）相关联的操作状态控制器（17）在网络计算机上禁用本地操作状态控制。在网络计算机（12）上禁用本地操作状态控制后，处理器（16）执行系统管理指令，并在网络计算机上执行系统管理操作。最后，在系统管理操作完成之后，处理器（16）执行释放指令以产生释放信号。释放信号使操作状态控制器（17）在网络计算机（12）上启用本地操作状态控制。

4. 发明授权

US06269444B1 Operational state switching apparatus and method for network computers 失效
标题翻译：网络计算机的操作状态切换装置和方法
公开(公告)号：US06269444B1
公开(公告)日：2001-07-31
申请号：US09234166
申请日：1999-01-21
申请人： Maximino Aguilar , James A. Brewer , John William Gorrell, Jr. , Sanjay Gupta , James Michael Stafford
发明人： Maximino Aguilar , James A. Brewer , John William Gorrell, Jr. , Sanjay Gupta , James Michael Stafford
IPC分类号： G06F900
CPC分类号： G06F1/24 , G06F1/3203
摘要： A system reset arrangement (12) resides alternately in an enabled condition or a disabled condition. When the system reset arrangement (12) is in the disabled condition, a switching input provided through a switch (11) does not effect a system reset. However, in the enabled condition, the switching input through the switch (11) causes system reset arrangement (12) to produce a reset output which resets the system. A reset disable arrangement (14) maintains the system reset arrangement (12) in the disabled condition in response to a disable input. When the disable input is removed, reset disable arrangement (14) maintains system reset arrangement (12) in the enabled condition. An interrupt output (15) develops an interrupt signal in response to the switching input. This interrupt signal prompts an interrupt controller (16) to issue a desired system management command to be processed by the system processor. This command may place the system in a standby mode and, in any event, removes the disable input, causing the reset disable arrangement (14) to maintain the system reset arrangement (12) in an enabled condition. Thus, activating the switch (11) while the computer is in a normal operational state causes the computer to go into a standby state; and, activating the switch (11) while the computer is in the standby state causes the computer to reset back to the normal operational state.
摘要翻译：系统复位装置（12）交替地驻留在使能状态或禁用状态。当系统复位装置（12）处于禁用状态时，通过开关（11）提供的切换输入不会影响系统复位。然而，在使能状态下，通过开关（11）的切换输入使得系统复位装置（12）产生复位系统的复位输出。复位禁止装置（14）响应于禁用输入将系统复位装置（12）维持在禁用状态。当禁用输入被去除时，复位禁止布置（14）将系统复位布置（12）维持在使能状态。中断输出（15）响应于开关输入产生中断信号。该中断信号提示中断控制器（16）发出要由系统处理器处理的所需系统管理命令。该命令可以将系统置于待机模式，并且在任何情况下都会去除禁用输入，导致复位禁止（14）将系统复位装置（12）保持在使能状态。因此，当计算机处于正常操作状态时激活开关（11）使得计算机进入待机状态; 并且当计算机处于待机状态时激活开关（11）使得计算机重置回正常操作状态。

5. 发明授权

US06430687B1 Boot sequence for a network computer including prioritized scheduling of boot code retrieval 失效
标题翻译：网络计算机的启动顺序，包括启动代码检索的优先排序
公开(公告)号：US06430687B1
公开(公告)日：2002-08-06
申请号：US09292192
申请日：1999-04-15
申请人： Maximino Aguilar , Norbert M. Blam , Michael Edward Criscolo , Sanjay Gupta , John William Gorrell, Jr. , Roy Moonseuk Kim , James Michael Stafford
发明人： Maximino Aguilar , Norbert M. Blam , Michael Edward Criscolo , Sanjay Gupta , John William Gorrell, Jr. , Roy Moonseuk Kim , James Michael Stafford
IPC分类号： G06F126
CPC分类号： G06F9/4416 , G06F11/1417
摘要： A computer network that includes a network server and a network client. The network server includes a storage medium configured with boot code data preferably comprising operating system software for the network client. The network client includes a power status indicator and is configured to query the power status indicator as part of a boot code sequence that is initiated in response to a boot event. The network client is configured to schedule retrieval of boot code data from the network server based upon the power status indicator. Preferably, the power status indicator includes a power fail circuit that indicates whether power to the network client has failed since a previous boot event. In one embodiment, the power fail circuit includes a flip flop arranged such that the output of the flip flop is preset when power is restored to the network client after a power failure. Preferably the clear input of the flip flop is programmably assertable. The power status indicator preferably further includes a power mode indicator that conveys information about the last known power mode of the network client. Preferably, the power mode indicator includes at least one nonvolatile memory bit.
摘要翻译：包括网络服务器和网络客户端的计算机网络。网络服务器包括配置有引导代码数据的存储介质，优选地包括用于网络客户端的操作系统软件。网络客户端包括电源状态指示符，并且被配置为将电源状态指示符作为响应于引导事件而启动的引导代码序列的一部分进行查询。网络客户端被配置为基于电源状态指示器来计划从网络服务器检索引导代码数据。优选地，电源状态指示器包括电源故障电路，其指示对于网络客户端的电源是否从先前引导事件失败。在一个实施例中，电源故障电路包括触发器，其被布置为使得在电源故障之后电力恢复到网络客户端时触发器的输出被预设。优选地，触发器的清晰输入是可编程地可断言的。电源状态指示符优选地还包括功率模式指示符，其传达关于网络客户端的最后已知功率模式的信息。优选地，功率模式指示符包括至少一个非易失性存储器位。

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