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    • 3. 发明申请
    • METHOD AND SYSTEM FOR A PENDANT BUS PROTOCOL
    • “吊装总线协议”的方法与系统
    • US20080037538A1
    • 2008-02-14
    • US11874059
    • 2007-10-17
    • Michael CalligaroDavid VothRandal RamigRoberto Cazzaro
    • Michael CalligaroDavid VothRandal RamigRoberto Cazzaro
    • H04L12/56G06F3/00H04L12/28
    • H04L12/403G06F13/4256H04L12/40169
    • A communication protocol for use between serially chained portable pendant peripherals and a portable host device. The bus communications system protocol enables multiple low power input/output peripherals to communicate over a bi-directional data line with a portable host device such as a PDA or cellular phone. A message packet data structure for use in the bus communications system includes a device identifier, a packet type identifier, and message data bits. The packet type identifier describes the actions associated with the packet. A method determines whether the message packet received by a device is intended for the device by evaluating if the device identifier is zero. If the device identifier is other than zero, the method modifies the device identifier and communicates the message packet to another device in the bus communications system.
    • 串行链式便携式吊坠外围设备与便携式主机设备之间使用的通信协议。 总线通信系统协议允许多个低功率输入/输出外围设备通过双向数据线与诸如PDA或蜂窝电话的便携式主机设备进行通信。 在总线通信系统中使用的消息分组数据结构包括设备标识符,分组类型标识符和消息数据比特。 分组类型标识符描述与分组相关联的动作。 方法通过评估设备标识符是否为零来确定由设备接收到的消息分组是否用于设备。 如果设备标识符不为零,则该方法修改设备标识符并将消息分组传送到总线通信系统中的另一设备。
    • 5. 发明授权
    • Visual display system having low energy data storage subsystem with date
compression capabilities, and method for operating same
    • 具有日期压缩功能的低能量数据存储子系统的视觉显示系统及其操作方法
    • US5512921A
    • 1996-04-30
    • US263540
    • 1994-06-22
    • Amit MitalDavid Voth
    • Amit MitalDavid Voth
    • G06F3/153G06T9/00G09G3/36G09G5/395G09G5/399H03M7/46H04N1/41H04N7/26G09G5/36
    • H03M7/46G06T9/005G09G3/3611G09G5/395G09G2330/021G09G2340/02
    • A visual display system for use in computers includes a frame buffer for holding visual information data in a particular format for ready input to a visual display device. The system also includes a compressed frame buffer for storing the visual information data in a compressed format which can be rapidly decompressed in real-time and used in the visual display device. The data is compressed by a microprocessor during idle times and decompressed by a decompression circuit on the fly. In some circumstances, the power consumed by compressing and then repeatedly handling the compressed data is less than the power used to repeatedly handle the full uncompressed data set. The visual display system analyzes the visual information data and determines whether compression would help save energy. In the event that the handling of compressed data saves energy, the visual display system will use the compressed data set until the information is changed or updated. In this manner, the visual display system reduces power consumption which helps improve battery life in portable computers. A method for operating a visual display system using this energy saving compression technique is also described.
    • 用于计算机的视觉显示系统包括用于保持特定格式的视觉信息数据的帧缓冲器,以便准备输入到视觉显示设备。 该系统还包括压缩帧缓冲器,用于以可压缩格式存储视觉信息数据,该压缩格式可以实时快速解压缩并用于可视显示装置。 数据在空闲时间由微处理器压缩,并通过解压缩电路进行解压缩。 在某些情况下,通过压缩然后反复处理压缩数据所消耗的功率小于反复处理完整的未压缩数据集所用的功率。 视觉显示系统分析视觉信息数据,并确定压缩是否有助于节约能源。 在处理压缩数据节省能源的情况下,视觉显示系统将使用压缩数据集,直到信息被更改或更新为止。 以这种方式,视觉显示系统降低功耗,有助于改善便携式计算机的电池寿命。 还描述了使用该节能压缩技术来操作视觉显示系统的方法。