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    • 1. 发明申请
    • Phase interpolator circuitry for reducing clock skew
    • 用于减少时钟偏移的相位内插器电路
    • US20050024117A1
    • 2005-02-03
    • US10899112
    • 2004-07-27
    • Satoru KuboToshikazu Otake
    • Satoru KuboToshikazu Otake
    • G06F1/04G06F1/06H03K5/00H03K5/13H03K5/15H03K17/693H04L25/14H03K3/00
    • H03K17/693H03K5/133H03K2005/00039H03K2005/00202H04L7/0025H04L25/14
    • A phase interpolator circuitry is composed of a delay line, and a phase blender circuit. The delay line delays a first input clock signal to develop a delayed clock signal. The phase blender circuit includes a first inverter receiving the delayed clock signal, and a second inverter receiving a second input clock signal phased away from the first input clock signal. The outputs of the first and second inverters are commonly coupled together. The phase interpolator circuitry additionally includes at least one of constant current sources: first one connected between a power terminal of the first inverter and a power supply, second one connected between a ground terminal of the first inverter and ground, third one connected between a power terminal of the second inverter and a power supply, and fourth one connected between a ground terminal of the second inverter and ground.
    • 相位插值器电路由延迟线和相位混合器电路组成。 延迟线延迟第一输入时钟信号以产生延迟的时钟信号。 相位混合器电路包括接收延迟的时钟信号的第一反相器,以及接收相位偏离第一输入时钟信号的第二输入时钟信号的第二反相器。 第一和第二反相器的输出通常耦合在一起。 相位插值器电路还包括恒流源中的至少一个:第一反相器的电源端与电源之间连接的第一反相器,第一反相器的接地端与地之间连接的第二反相器, 第二反相器的接地端子和电源,第四反相器的接地端子接地。
    • 2. 发明授权
    • Failure diagnosis apparatus for evaporative fuel processing system
    • 蒸发燃料处理系统故障诊断装置
    • US06950742B2
    • 2005-09-27
    • US10798850
    • 2004-03-12
    • Takashi YamaguchiSatoru KuboMahito Shikama
    • Takashi YamaguchiSatoru KuboMahito Shikama
    • F02M25/08G01M3/02
    • G01M3/025
    • A failure diagnosis apparatus for diagnosing a failure of an evaporative fuel processing system. The system includes a fuel tank, a canister having adsorbent for adsorbing evaporative fuel generated in the fuel tank, an air passage connected to the canister and communicating the canister with the atmosphere, a first passage for connecting the canister and the fuel tank, a second passage for connecting the canister and an intake system of an internal combustion engine, a vent shut valve for opening and closing the air passage, and a purge control valve provided in the second passage. A pressure in the evaporative fuel processing system is detected. Negative pressure in the intake system is reserved in a negative pressure reservoir during operation of the engine. The purge control valve and the vent shut valve are closed to introduce the reserved negative pressure into the evaporative fuel processing system, when stoppage of the engine is detected. It is determined whether or not there is a leak in the evaporative fuel processing system, based on the pressure detected during a predetermined determination period after introduction of the negative pressure.
    • 一种故障诊断装置,用于诊断蒸发燃料处理系统的故障。 该系统包括燃料箱,具有用于吸附在燃料箱中产生的蒸发燃料的吸附剂的罐,连接到罐并将罐与大气连通的空气通道,用于连接罐和燃料箱的第一通道,第二 用于连接罐和内燃机的进气系统的通道,用于打开和关闭空气通道的排气关闭阀以及设置在第二通道中的清洗控制阀。 检测蒸发燃料处理系统中的压力。 在发动机运行期间,进气系统中的负压保留在负压储存器中。 当检测到发动机停机时,清除控制阀和排气关闭阀关闭,以将保留的负压引入蒸发燃料处理系统。 基于在引入负压之后的预定确定时段期间检测到的压力来确定蒸发燃料处理系统中是否存在泄漏。
    • 4. 发明授权
    • Evaporative fuel control system for internal combustion engines
    • 内燃机蒸发燃料控制系统
    • US5778865A
    • 1998-07-14
    • US863815
    • 1997-05-27
    • Yosuke TachibanaToru WadaSatoru Kubo
    • Yosuke TachibanaToru WadaSatoru Kubo
    • F02M25/08F02D41/00F02D41/14F02D41/24F02D45/00
    • F02D41/0032F02D41/2445F02D41/2454F02D41/248F02M25/08
    • An evaporative fuel control system for an internal combustion engine having a throttle valve includes a canister for adsorbing evaporative fuel generated in the fuel tank, a purging passage for purging evaporative fuel into the intake system of the engine, and a purge control valve for controlling a flow rate of the evaporative fuel to be purged into the intake system through the purging passage. An ECU sets an air-fuel ratio correction coefficient applied in air-fuel ratio feedback control, based on the concentration of a specific component in exhaust gases emitted from the engine, calculates a first learned value of the air-fuel ratio correction coefficient during execution of the air-fuel ratio feedback control, and controls the purge control valve such that the flow rate of the evaporative fuel is changed according to the calculated first learned value. A second learned value of the air-fuel ratio correction coefficient suitable for the transient operating condition of the engine is calculated. When the engine is in a transient operating condition, the first learned value is set to the second learned value.
    • 用于具有节流阀的内燃机的蒸发燃料控制系统包括用于吸收在燃料箱中产生的蒸发燃料的罐,用于将蒸发燃料吹入发动机的进气系统的清洗通道,以及用于控制发动机的排气控制阀 通过清洗通道将要吹扫进入系统的蒸发燃料的流量。 ECU根据从发动机排出的废气中的特定成分的浓度,设定在空燃比反馈控制中使用的空燃比校正系数,计算执行中的空燃比校正系数的第一学习值 并且控制净化控制阀,使得蒸发燃料的流量根据计算出的第一学习值而改变。 计算适合于发动机的暂态运行状态的空燃比校正系数的第二学习值。 当发动机处于瞬态运行状态时,将第一学习值设定为第二学习值。
    • 5. 发明申请
    • Driver circuit
    • 驱动电路
    • US20100308888A1
    • 2010-12-09
    • US12662770
    • 2010-05-03
    • Satoru Kubo
    • Satoru Kubo
    • H03L5/00
    • H03K19/018528H04L25/0272
    • A driver circuit including a pre-driver B1 that operates by receiving operating power from a first power supply VDDI, and a main-driver B2 that receives operating power from a second power supply VDDE, amplifies an output signal from the pre-driver B1, and outputs the amplified signal. It also includes a first switch B4 between the first power supply VDDI and the pre-driver B1. It also includes a second switch B5 between the second power supply VDDE and the main-driver B2. A overvoltage protection sequence circuit B3 controls the On/Off states of the first switch B4 and the second switch B5 to controls the On/Off order of the pre-driver B1 and the main-driver B2. By doing so, the overvoltage protection sequence circuit B3 prevent an overvoltage from being applied to the driver circuit, especially to the main-driver B2.
    • 包括通过从第一电源VDDI接收工作电力而操作的预驱动器B1和从第二电源VDDE接收工作电力的主驱动器B2的驱动器电路放大来自前驱动器B1的输出信号, 并输出放大信号。 它还包括在第一电源VDDI和前驱动器B1之间的第一开关B4。 它还包括在第二电源VDDE和主驱动器B2之间的第二开关B5。 过电压保护顺序电路B3控制第一开关B4和第二开关B5的开/关状态来控制预驱动器B1和主驱动器B2的开/关顺序。 通过这样做,过电压保护顺序电路B3防止过电压施加到驱动电路,特别是主驱动器B2。
    • 7. 发明授权
    • Driver circuit
    • 驱动电路
    • US07973585B2
    • 2011-07-05
    • US12662770
    • 2010-05-03
    • Satoru Kubo
    • Satoru Kubo
    • H03L5/00
    • H03K19/018528H04L25/0272
    • A driver circuit including a pre-driver B1 that operates by receiving operating power from a first power supply VDDI, and a main-driver B2 that receives operating power from a second power supply VDDE, amplifies an output signal from the pre-driver B1, and outputs the amplified signal. It also includes a first switch B4 between the first power supply VDDI and the pre-driver B1. It also includes a second switch B5 between the second power supply VDDE and the main-driver B2. A overvoltage protection sequence circuit B3 controls the On/Off states of the first switch B4 and the second switch B5 to controls the On/Off order of the pre-driver B1 and the main-driver B2. By doing so, the overvoltage protection sequence circuit B3 prevent an overvoltage from being applied to the driver circuit, especially to the main-driver B2.
    • 包括通过从第一电源VDDI接收工作电力而操作的预驱动器B1和从第二电源VDDE接收工作电力的主驱动器B2的驱动器电路放大来自前驱动器B1的输出信号, 并输出放大信号。 它还包括在第一电源VDDI和前驱动器B1之间的第一开关B4。 它还包括在第二电源VDDE和主驱动器B2之间的第二开关B5。 过电压保护顺序电路B3控制第一开关B4和第二开关B5的开/关状态来控制预驱动器B1和主驱动器B2的开/关顺序。 通过这样做,过电压保护顺序电路B3防止过电压施加到驱动电路,特别是主驱动器B2。