Software management systems and methods for automotive computing devices
    1.
    发明授权
    Software management systems and methods for automotive computing devices 有权
    用于汽车计算设备的软件管理系统和方法

    公开(公告)号:US07155584B2

    公开(公告)日:2006-12-26

    申请号:US10985176

    申请日:2004-11-10

    IPC分类号: G06F12/00 G06F12/16 G06F9/46

    摘要: Methods and systems for operating automotive computing devices are described. In one embodiment, multiple object store pages are maintained in device SRAM that is configured to be battery backed in an event of a power loss. One or more object store pages are periodically flushed to device non-volatile memory to make room for additional object store pages. The frequency of object store page writes is tracked, and object store pages that are least frequently written to are flushed before object store pages that are more frequently written to. In addition, in the event of a power loss, the SRAM is battery backed.

    摘要翻译: 描述了用于操作汽车计算设备的方法和系统。 在一个实施例中,在设备SRAM中保持多个对象存储页面,其被配置为在电力丢失的情况下被电池支持。 周期性地将一个或多个对象存储页面刷新到设备非易失性存储器以为额外的对象存储页面留出空间。 跟踪对象存储页面写入的频率,最不频繁写入的对象存储页面在更频繁写入的对象存储页面之前被刷新。 另外,在掉电的情况下,SRAM是电池供电的。

    Software management systems and methods for automotive computing devices
    4.
    发明授权
    Software management systems and methods for automotive computing devices 有权
    用于汽车计算设备的软件管理系统和方法

    公开(公告)号:US06801994B2

    公开(公告)日:2004-10-05

    申请号:US09745894

    申请日:2000-12-20

    IPC分类号: G06F1208

    摘要: Methods and systems for operating automotive computing devices are described. In one embodiment, a small amount of static RAM (SRAM) is incorporated into an automotive computing device and is battery-backed to provide a non-volatile memory space in which critical data, e.g. the object store, can be maintained in the event of a power loss. Circuitry is provided to ensure that the SRAM receives back up power from the battery at appropriate times. Software manages the SRAM and the other storage assembly components and makes use of virtual paging or virtual addressing techniques to keep track of where various pages, including object store pages, are stored in the system.

    摘要翻译: 描述了用于操作汽车计算设备的方法和系统。 在一个实施例中,少量的静态RAM(SRAM)被并入到汽车计算设备中,并且被电池支持以提供非易失性存储器空间,其中关键数据例如是。 对象存储,可以在发生电力损失的情况下维护。 提供电路以确保SRAM在适当的时间从电池接收电力。 软件管理SRAM和其他存储组件组件,并利用虚拟寻呼或虚拟寻址技术跟踪各种页面(包括对象存储页面)存储在系统中的位置。

    Automotive computing devices with emergency power shut down capabilities
    7.
    发明授权
    Automotive computing devices with emergency power shut down capabilities 有权
    具有应急电源关闭能力的汽车计算设备

    公开(公告)号:US07099991B2

    公开(公告)日:2006-08-29

    申请号:US10970939

    申请日:2004-10-22

    IPC分类号: G06F12/00

    摘要: Methods and systems for operating automotive computing devices are described. In one embodiment, a small amount of static RAM (SRAM) is incorporated into an automotive computing device. The SRAM is battery-backed to provide a non-volatile memory space in which critical data can be maintained in the event of a power loss. Circuitry is provided to ensure that the SRAM receives back up power from the battery at the appropriate time. Software manages the SRAM and the other storage assembly components and makes use of virtual paging or virtual addressing techniques to keep track of where various pages, including object store pages, are stored in the system. The software knows exactly where all of the object store pages are stored so that in the event of a power loss, the page locations are known and hence the pages can be used when power is restored.

    摘要翻译: 描述了用于操作汽车计算设备的方法和系统。 在一个实施例中,少量静态RAM(SRAM)被并入到汽车计算设备中。 SRAM是电池供电的,以提供非易失性存储器空间,其中在电力损失的情况下可以保持关键数据。 提供电路以确保SRAM在适当的时间从电池接收电力。 软件管理SRAM和其他存储组件组件,并利用虚拟寻呼或虚拟寻址技术跟踪各种页面(包括对象存储页面)存储在系统中的位置。 该软件确切地知道存储所有对象存储页面的位置,以便在掉电的情况下,页面位置是已知的,因此在恢复电源时可以使用页面。