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    • 7. 发明申请
    • OPTICAL PICKUP
    • US20120281518A1
    • 2012-11-08
    • US13291246
    • 2011-11-08
    • Kenji OKAMOTO
    • Kenji OKAMOTO
    • G11B7/135
    • G11B7/1374G11B7/08511G11B7/1353G11B7/1376G11B2007/0006
    • An optical pickup has an objective lens that is shared for light of three wavelengths. The effective diameter of the light that passes through the objective lens decreases in a sequence of the light of a first wavelength (light for a first optical disk), the light of a second wavelength (light for a second optical disk) and the light of a third wavelength (light for a third optical disk); and the light of the third wavelength is incident on the objective lens in a finite system. The objective lens is provided so that the focal distance of the light of the second wavelength is greater than the focal distance of the light of the first wavelength.
    • 光拾取器具有用于三个波长的光共享的物镜。 通过物镜的光的有效直径以第一波长的光(第一光盘的光),第二波长的光(第二光盘的光)和第二波长的光 第三波长(第三光盘的光); 并且第三波长的光在有限的系统中入射到物镜上。 物镜被提供为使得第二波长的光的焦距大于第一波长的光的焦距。
    • 8. 发明申请
    • Information Recording Apparatus and Information Recording Control Apparatus
    • 信息记录装置和信息记录控制装置
    • US20070242929A1
    • 2007-10-18
    • US11736248
    • 2007-04-17
    • Kenji OKAMOTO
    • Kenji OKAMOTO
    • H04N5/91
    • H04N21/434H04N5/76H04N5/781H04N5/85H04N5/907H04N5/9267H04N7/163H04N9/7921H04N9/8042H04N21/47
    • An information recording control apparatus including: a selection section; a video acquiring section to acquire digital video data in a digital broadcast signal; an audio acquiring section to acquire digital audio data of a specific language selected on the selection section from the digital audio data of a plurality of languages in the digital broadcast signal; a video converting section to convert the acquired digital video data into an analog video signal; an audio converting section to convert the acquired the digital audio data of specific language into an analog audio signal of the specific language; and an output section to output, to a recording device, the converted analog video signal, and the converted analog audio signal of the specific language.
    • 一种信息记录控制装置,包括:选择部分; 视频获取部分,用于获取数字广播信号中的数字视频数据; 音频获取部分,从数字广播信号中的多种语言的数字音频数据获取在选择部分上选择的特定语言的数字音频数据; 视频转换部分,用于将所获取的数字视频数据转换为模拟视频信号; 音频转换部分,将所获取的特定语言的数字音频数据转换成特定语言的模拟音频信号; 以及输出部分,向记录装置输出转换的模拟视频信号和特定语言的转换的模拟音频信号。
    • 9. 发明申请
    • PULSE MODULATION TYPE ELECTRIC POWER AMPLIFIER
    • 脉冲调制型电力放大器
    • US20090289705A1
    • 2009-11-26
    • US12535274
    • 2009-08-04
    • Hitoshi KOBAYASHIKenji OKAMOTO
    • Hitoshi KOBAYASHIKenji OKAMOTO
    • H03F3/38
    • H03F3/2173H03F1/52H03F3/217
    • A pulse modulation type electric power amplifier includes a pulse modulator that receives as input a clock and an input signal, and converts the input signal to a pulse train, an output control circuit that receives as input the pulse train output by the pulse modulator, and controls output of the pulse train, an output circuit that performs switching according to the pulse train output by the output control circuit, a comparator that converts an output terminal voltage of the output circuit to a high or a low digital value, and a short-circuit determination circuit that determines whether an output short circuit has occurred based on a state of an output signal of the comparator, and outputs an output prohibition signal to the output control circuit when an output short circuit is detected. The output control circuit controls output of the pulse train when the output prohibition signal is input, so that the output circuit stops the switching operation. An output short-circuit protection circuit can thereby be configured simply with little circuitry, and is thus small, low power, and integrated easily.
    • 脉冲调制型电力放大器包括脉冲调制器,其接收时钟和输入信号作为输入,并将输入信号转换为脉冲串;输出控制电路,接收由脉冲调制器输出的脉冲序列作为输入;以及 控制脉冲序列的输出,根据输出控制电路输出的脉冲串进行切换的输出电路,将输出电路的输出端子电压转换为高或低数字值的比较器, 电路确定电路,其基于比较器的输出信号的状态确定是否发生了输出短路,并且当检测到输出短路时,将输出禁止信号输出到输出控制电路。 当输出禁止信号被输入时,输出控制电路控制脉冲序列的输出,使得输出电路停止切换操作。 因此,输出短路保护电路可以简单地配置很少的电路,因此能够小型化,低功率化,并且容易集成。
    • 10. 发明申请
    • BROADCAST RECEIVING APPARATUS
    • 广播接收设备
    • US20090081977A1
    • 2009-03-26
    • US12237979
    • 2008-09-25
    • Kenji OKAMOTO
    • Kenji OKAMOTO
    • H04B1/06
    • H04B1/18H04N5/44H04N21/44209H04N21/6112
    • When a RF signal is output, noise is prevented from appearing in the RF signal without degrading convenience.The MPU 11 of the set top box has functionally the RF determination portion 118 which determines whether or not a RF signal is being output, the antenna setting portion 117 which if it is determined by the RF determination portion 118 that the output of a RF signal is started, sets a smart antenna to preset one direction of the first predetermined number of directions and to preset one gain of the second predetermined number of steps of gains, and the change prohibition portion 119 which prohibits the change of the direction and gain of a smart antenna if it is determined by the RF determination portion 118 that a RF signal is being output.
    • 当输出RF信号时,防止在RF信号中出现噪声而不降低便利性。 机顶盒的MPU 11在功能上是确定是否正在输出RF信号的RF确定部分118,如果由RF确定部分118确定RF信号的输出,则天线设置部分117 设置智能天线以预设第一预定数量的方向的一个方向并预设第二预定增益步长的一个增益,以及禁止改变方向和增益的改变禁止部分119 智能天线,如果由RF确定部分118确定正在输出RF信号。