画像処理装置および方法
    152.
    发明专利

    公开(公告)号:JPWO2006046376A1

    公开(公告)日:2008-05-22

    申请号:JP2006542294

    申请日:2005-09-26

    Abstract: 処理の簡略化が可能な画像処理装置および方法を提供することを目的とする。画像を構成する複数画素の輝度データからなる画像データを格納するラインメモリ320、322、324と、格納された輝度データの中から着目画素を中心とした3×3画素、合計で9画素分を読み出す制御回路334、アドレス発生回路326等と、読み出された9画素分の輝度データを用いて着目画素に対応する画質調整後の新たな輝度データを演算する輝度データ演算回路332とを備えている。

    Receiver
    153.
    发明专利
    Receiver 审中-公开
    接收器

    公开(公告)号:JP2008092476A

    公开(公告)日:2008-04-17

    申请号:JP2006273387

    申请日:2006-10-04

    CPC classification number: H04B1/28 H04B1/001 H04B1/0014 H04B1/0025 H04B1/0032

    Abstract: PROBLEM TO BE SOLVED: To reduce power consumption, and also to reduce a circuit scale, in a receiver in a super-heterodyne system achieved by using a DSP.
    SOLUTION: A high frequency analog signal received through an antenna 1 is temporarily converted into a low frequency analog signal by a first frequency conversion circuit 4, and A/D converted, and the generated digital signal is subject to digital signal processing by a DSP 9, and returned to an analog signal, and frequency-converted into a signal of a target intermediate frequency by a second frequency conversion circuit 12. Thus, it is necessary only to A/D convert the analog signal whose frequency is lower than the intermediate frequency by an A/D converter 8. Also, it is unnecessary not only to carry out high speed sampling, based on a Nyquist theorem, but also to operate even the DSP 9 with high sampling frequency.
    COPYRIGHT: (C)2008,JPO&INPIT

    Abstract translation: 要解决的问题:通过使用DSP实现的超外差系统中的接收机中,为了降低功耗并降低电路规模。 解决方案:通过天线1接收的高频模拟信号由第一频率转换电路4暂时转换为低频模拟信号,并进行A / D转换,并且所生成的数字信号经数字信号处理由 DSP 9,并返回到模拟信号,并通过第二频率转换电路12对目标中频的信号进行频率转换。因此,仅需要A / D转换频率低于 通过A / D转换器8的中间频率。此外,不仅不需要基于奈奎斯特定理进行高速采样,而且还要以高采样频率来操作DSP 9。 版权所有(C)2008,JPO&INPIT

    Loop antenna input circuit for am, and am radio receiver employing the same
    154.
    发明专利
    Loop antenna input circuit for am, and am radio receiver employing the same 审中-公开
    用于AM的环形天线输入电路和使用它的无线电接收器

    公开(公告)号:JP2008085422A

    公开(公告)日:2008-04-10

    申请号:JP2006260058

    申请日:2006-09-26

    CPC classification number: H03F3/189 H01Q7/00 H03F1/565 H03F3/45 H04B1/18

    Abstract: PROBLEM TO BE SOLVED: To facilitate forming an IC in a loop antenna input circuit for an AM radio receiver by eliminating the necessity of an impedance conversion circuit using a transformer without causing an increase in a current noise.
    SOLUTION: A pair of p-MOSFETs 21, 22 used as amplifier elements for amplifying an input signal from a loop antenna 1 are directly connected to the loop antenna 1. With this configuration, the input signal from the loop antenna 1 can be received by the p-MOSFETs 21, 22 at a high impedance. Thus, a transformer for transforming the signal into high impedance is not required, and the impedance of the loop antenna 1 itself is not required to increase, thereby suppressing a current noise.
    COPYRIGHT: (C)2008,JPO&INPIT

    Abstract translation: 要解决的问题:为了便于在AM无线电接收机的环形天线输入电路中形成IC,通过消除使用变压器的阻抗转换电路的必要性而不引起电流噪声的增加。 解决方案:用作放大来自环形天线1的输入信号的放大器元件的一对p-MOSFET 21,22直接连接到环形天线1.通过这种配置,来自环形天线1的输入信号可以 被p-MOSFET 21,22以高阻抗接收。 因此,不需要用于将信号变换为高阻抗的变压器,并且环路天线1本身的阻抗不需要增加,从而抑制电流噪声。 版权所有(C)2008,JPO&INPIT

    Image processor
    157.
    发明专利
    Image processor 有权
    图像处理器

    公开(公告)号:JP2007257237A

    公开(公告)日:2007-10-04

    申请号:JP2006080080

    申请日:2006-03-23

    Inventor: YOSHIDA AKIRA

    CPC classification number: G06T5/20

    Abstract: PROBLEM TO BE SOLVED: To improve quality of an image to which an image effect is given by pixel value conversion processing using a correction factor. SOLUTION: Using correction value tables 2 -1 -2 -k having patterns varied according to the positional relationship of two pixels from which a difference value is calculated, a correction value is not decided simply according to the difference value but decided in compliance with both of the positional relationship between the pixels and the difference value between them, so that a proper correction value can be decided while selecting the positions of the pixels. In comparison with a conventional technology by which the correction value is simply changed for changing an emphasis degree, for example, quality of the image acquired by a pixel value conversion processing can be improved. COPYRIGHT: (C)2008,JPO&INPIT

    Abstract translation: 要解决的问题:通过使用校正因子的像素值转换处理来提高给出图像效果的图像的质量。

    解决方案:使用具有根据计算差值的两个像素的位置关系而变化的图案的校正值表2 -1 -2 -k 校正值不仅仅根据差值决定,而是根据像素之间的位置关系和它们之间的差值两者来确定,从而可以在选择像素的位置的同时确定适当的校正值。 与用于改变强调度简单地改变校正值的常规技术相比,例如,可以提高通过像素值转换处理获取的图像的质量。 版权所有(C)2008,JPO&INPIT

    自動利得制御装置
    160.
    发明专利

    公开(公告)号:JPWO2005053171A1

    公开(公告)日:2007-06-21

    申请号:JP2005515731

    申请日:2004-07-12

    CPC classification number: H03G3/3052

    Abstract: 受信信号のレベルを広帯域、中帯域、狭帯域のそれぞれ毎に検出してデジタル信号に変換し、DSP18が各帯域の信号レベルに基づいてLNA3およびアッテネータ4の利得調整の可否および利得調整量を決定することにより、例えば、広帯域や中帯域の信号レベルが所定値より大きくなっていても、受信希望周波数を含む狭帯域の信号レベルが所定値より大きくないときは利得調整を行わないようにする。また、狭帯域の信号レベルが所定値より大きく、かつ、アッテネータ4で利得調整可能な限界レベルを超えているときは、アッテネータ4による利得調整量を限界レベル付近に維持するとともに、LNA3の利得を調整してゲインを全体として大きく下げることができるようにする。

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