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    • 91. 发明授权
    • White balance adjusting device
    • 白平衡调节装置
    • US5983038A
    • 1999-11-09
    • US761903
    • 1996-12-09
    • Koichi SatoTahei MorisawaYasuhiro Yamamoto
    • Koichi SatoTahei MorisawaYasuhiro Yamamoto
    • H04N9/04H04N9/73G03B19/00
    • H04N9/735
    • A white balance adjusting device includes a rotational color filter and a shutter which are provided between a photographing optical system and an electro-developing recording medium having first, second, and third recording areas. Red, green, and blue images are recorded in the first, second, and third recording areas through the rotational color filter. A photometry sensor is provided behind the electro-developing recording medium to sense the intensity of light passing through the first, second, and third recording areas. When the sensed light reaches a proper photometry value, the application of a voltage to the electro-developing recording medium is stopped, and the shutter is closed.
    • 白平衡调节装置包括设置在拍摄光学系统和具有第一,第二和第三记录区域的电显影记录介质之间的旋转滤色器和快门。 红色,绿色和蓝色图像通过旋转滤色器记录在第一,第二和第三记录区域中。 在电显影记录介质后面设置测光传感器,以感测通过第一,第二和第三记录区域的光的强度。 当感测到的光达到适当的测光值时,停止对电显影记录介质施加电压,并且快门关闭。
    • 94. 发明授权
    • Pulse signal shaper in a semiconductor integrated circuit
    • 半导体集成电路中的脉冲信号整形器
    • US5812000A
    • 1998-09-22
    • US890888
    • 1997-07-10
    • Isamu KobayashiYasuhiro Yamamoto
    • Isamu KobayashiYasuhiro Yamamoto
    • H03K5/1532H03K5/06H03K5/156H03K12/00H03K3/017
    • H03K5/06H03K5/156
    • A pulse signal shaper supplying a pulse signal having a stable pulse width, including an input circuit that produces a first pulse signal in response to an input signal, a delay circuit that produces a second pulse signal obtained by delaying the first pulse signal by a predetermined time, and a signal mixing circuit that is connected to the input circuit and the delay circuit. The mixing circuit combines the first pulse signal and the second pulse signal to produce a third pulse signal having a pulse width equal to or greater than a delay time provided by the delay circuit, and supplies the third pulse signal as an output signal from the pulse signal shaper. In a preferred embodiment, the input circuit includes an oscillator responsive to the input signal. When the input signal has a higher frequency than a predetermined frequency, the input signal is supplied as the first pulse signal at a frequency equal to te frequency of the input signal. When the input signal has a lower frequency than the predetermined frequency, the first pulse signal is supplied at the predetermined frequency.
    • 一种脉冲信号整形器,其提供具有稳定脉冲宽度的脉冲信号,包括响应于输入信号产生第一脉冲信号的输入电路;延迟电路,其产生通过将所述第一脉冲信号延迟预定的第二脉冲信号而获得的第二脉冲信号 时间,以及连接到输入电路和延迟电路的信号混合电路。 混合电路组合第一脉冲信号和第二脉冲信号以产生具有等于或大于由延迟电路提供的延迟时间的脉冲宽度的第三脉冲信号,并将第三脉冲信号作为来自脉冲的输出信号 信号整形器 在优选实施例中,输入电路包括响应于输入信号的振荡器。 当输入信号具有比预定频率高的频率时,输入信号作为第一脉冲信号以等于输入信号的te频率的频率被提供。 当输入信号具有比预定频率低的频率时,以预定频率提供第一脉冲信号。
    • 95. 发明授权
    • Device for controlling format operation of recording medium
    • 用于控制记录介质的格式化操作的装置
    • US5761373A
    • 1998-06-02
    • US525138
    • 1995-09-08
    • Yasuhiro Yamamoto
    • Yasuhiro Yamamoto
    • G06F3/06G11B20/12G11B20/18G11B27/32H04N1/21H04N5/765H04N5/781H04N5/91H04N5/85
    • H04N1/2129G11B20/1217G11B20/1883G11B27/329H04N1/2112H04N1/2137G11B2220/20
    • A format operation control device performs a simple format operation and a standard format operation for a recording medium having a control data area, storing file control information, and a record data area, storing record data. The control data area and the record data area have sectors. In the simple format operation, the control data area is initialized and bad sectors are not detected from each of the sectors of the recording medium. The standard format operation includes a substitution process and a bad sector mapping. In the substitution process, the control data area is initialized, bad sectors are detected from each of the sectors of the recording medium, and a physical format is performed so that good sectors are used instead of bad sectors. In a bad sector mapping, the control data area is initialized, bad sectors are detected from the record data area, and a bad mark is recorded in the FAT-table corresponding to the cluster containing the bad sector.
    • 格式化操作控制装置对具有控制数据区域,存储文件控制信息和记录数据区域的记录介质执行简单格式操作和标准格式化操作,存储记录数据。 控制数据区和记录数据区有扇区。 在简单格式化操作中,初始化控制数据区,并且不从记录介质的每个扇区检测到坏扇区。 标准格式操作包括替换过程和坏扇区映射。 在替代处理中,控制数据区域被初始化,从记录介质的每个扇区检测到坏扇区,并且执行物理格式,从而使用良好扇区而不是坏扇区。 在坏扇区映射中,控制数据区被初始化,从记录数据区检测到坏扇区,并且在与包含坏扇区的簇对应的FAT表中记录坏标记。
    • 100. 发明授权
    • Circuit and method for controlling output current balance between
parallel driven PWM-type power inverting units
    • 用于控制并联驱动PWM型电源转换单元之间的输出电流平衡的电路和方法
    • US5253155A
    • 1993-10-12
    • US887141
    • 1992-05-22
    • Yasuhiro Yamamoto
    • Yasuhiro Yamamoto
    • H02J3/38H02M7/48H02M7/493H02M7/5395
    • H02M7/493
    • A circuit and method for controlling an output current balance for parallel driven PWM-type digitalized power inverting units are disclosed in which a feedback control such that rising edge times and falling edge times of a PWM waveformed pulse train signal to be supplied to the parallel driven power inverting units are respectively corrected using independent correction signals is carried out to eliminate a deviation between output currents of the parallel driven power inverting units. The correction of the rising edge times and falling edge times is such that a phase advance correction for the one unit with respect to an offset value delay and a phase retardation correction for the other unit with respect to the offset value delay are carried out so that a delay of an average output current with respect to the PWM waveformed pulse train signal is made constant. In addition, if an integration calculation of the feedback control is carried out during a constant period of time upon a change in the PWM waveformed pulse train signal to suppress an abnormal integration. Ripple components due to a generation of output current unbalance can be suppressed by limiting the corrections to the falling edges and rising edges of the PWM pulse train signal to either one according to a polarity of the deviation between the output currents of the power inverting units.