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    • 1. 发明申请
    • LAMP DRIVING TOPOLOGY
    • 灯驱动拓扑学
    • WO2003036405A1
    • 2003-05-01
    • PCT/US2002/033966
    • 2002-10-23
    • O2 MICRO, INC.CHOU, JohnCRUZ, Arnel Dela
    • CHOU, JohnCRUZ, Arnel Dela
    • G05F1/00
    • H05B41/232
    • A lamp driving system (10) that includes a first impedance (14) and a second impedance (16) coupled to the secondary side of a transformer (12), where the second impedance has a phase shifted value compared to the first impedance. Two lamp loads (18, 20) are connected in series together, and in parallel to the first (14) and second impedances (16) and to the transformer (12). The phase shift between the impedances ensures that the transformer need not supply double the striking voltage to strike the series-connected lamps. A difference in the resistance between the first and second impedances ensures that the lamps ignite in a specified sequence.
    • 一种灯驱动系统(10),其包括耦合到变压器(12)的次级侧的第一阻抗(14)和第二阻抗(16),其中所述第二阻抗具有与所述第一阻抗相比的相移值。 两个灯负载(18,20)串联连接在一起并与第一(14)和第二阻抗(16)以及变压器(12)并联。 阻抗之间的相移确保变压器不需要提供两倍的触发电压来击穿串联连接的灯。 第一和第二阻抗之间的电阻差异确保灯以指定的顺序点燃。
    • 3. 发明申请
    • LOW POWER AUDIO CD PLAYER FOR PORTABLE COMPUTERS
    • 便携式电脑的低功耗音乐CD播放器
    • WO2002099613A1
    • 2002-12-12
    • PCT/US2002/012029
    • 2002-04-17
    • O2 MICRO, INC.CHAN, ReginiaLAM, James
    • CHAN, ReginiaLAM, James
    • G06F1/26
    • G06F1/3203G06F1/26G06F1/3256G06F3/165Y02D10/1542
    • A low-power audio CD player for portable computers permits operation of the CD-ROM subsystem (106) when power is not being supplied to the computer subsystem (104). The audio interface (102) is adapted to generate signals to operate the audio device and play the audio CD when power is not being supplied to the computer subsystem or to the CPU. A method for playing an audio CD in a computer system comprises deenergizing a computer CPU; and controlling, using an audio interface coupled to a digital computer bus in parallel to a digital computer bus controller and an audio device capable of playing an audio CD, the audio device and a computer audio amplifier to play an audio CD without supplying energy to the CPU.
    • 用于便携式计算机的低功率音频CD播放器允许当未向计算机子系统(104)供电时CD-ROM子系统(106)的操作。 音频接口(102)适于产生用于操作音频设备的信号并且当未向计算机子系统或CPU供电时播放音频CD。 一种用于在计算机系统中播放音频CD的方法包括断电计算机CPU; 以及使用耦合到数字计算机总线的音频接口并行地控制数字计算机总线控制器和能够播放音频CD的音频设备,音频设备和计算机音频放大器来播放音频CD而不向 中央处理器。
    • 6. 发明申请
    • ENHANCED PROTOCOL CONVERSION SYSTEM
    • 增强协议转换系统
    • WO2003019841A2
    • 2003-03-06
    • PCT/US2002/024973
    • 2002-08-06
    • O2 MICRO, INC.
    • MORROW, Neil
    • H04L
    • G06K19/07739G06F3/0607G06F3/0632G06F3/0661G06F3/0679G06F3/08G06K13/0825
    • Systems are provided for the offloading of protocol control and conversion information within microprocessor-based systems. A converter controller comprises a first interface and protocol, as well as a second interface and protocol. An intermediate protocol and interface is interconnected to both the first protocol and the second protocol, and forwards or offloads protocol information to the system CPU, which comprises device driver information for protocol conversion and/or control. The CPU acts upon the received protocol information, performs protocol conversion as necessary, and forwards the converted protocol information back to the converter controller through the intermediate interface. Some embodiments of the offloading protocol conversion system comprise a SDIO controller within a USB-based device.
    • 提供系统用于在基于微处理器的系统内卸载协议控制和转换信息。 A转换器控制器包括第一接口和协议,以及第二接口和协议。 中间协议和接口与第一协议和第二协议互连,并将协议信息转发或卸载到系统CPU,该系统CPU包括用于协议转换和/或控制的设备驱动程序信息。 CPU根据接收到的协议信息进行操作,根据需要执行协议转换,并通过中间接口将转换的协议信息转发回转换器控制器。 卸载协议转换系统的一些实施例包括在基于USB的设备内的SDIO控制器。
    • 7. 发明申请
    • PRE-BOOT AUTHENTICATION SYSTEM
    • 预启动认证系统
    • WO2002095571A1
    • 2002-11-28
    • PCT/US2002/015047
    • 2002-05-10
    • O2 MICRO, INC.
    • LEE, Shyh-Shin
    • G06F9/00
    • G06F21/575
    • Systems are provided for the enhancement of the system BIOS for microprocessor-based devices (34). Before the end of the BIOS start-up procedure, the BIOS operation is diverted to a BIOS authentication system (10) which may be a portion of an enhanced system BIOS (14). The BIOS security authentication system (10) establishes communication with an information module (26), if the information module (26) is present. The information module (26) is typically a removable or installable card, which may be unique to one or more users. Based upon an information exchange between the security authentication module (10) and the information module (26), the security module (10) allows or prevents the system BIOS start-up procedure to resume and finish.
    • 系统被提供用于增强基于微处理器的设备的系统BIOS(34)。 在BIOS启动过程结束之前,BIOS操作被转移到可以是增强型系统BIOS(14)的一部分的BIOS认证系统(10)。 如果存在信息模块(26),则BIOS安全认证系统(10)建立与信息模块(26)的通信。 信息模块(26)通常是可移动或可安装的卡,其可以是一个或多个用户唯一的。 基于安全认证模块(10)和信息模块(26)之间的信息交换,安全模块(10)允许或阻止系统BIOS启动过程恢复并完成。