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    • 42. 发明授权
    • Recording and reproducing apparatus
    • 记录和再现设备
    • US5323244A
    • 1994-06-21
    • US124748
    • 1993-09-22
    • Susumu YamaguchiChiyoko Matsumi
    • Susumu YamaguchiChiyoko Matsumi
    • G11B15/02G06F21/10G09C1/00G11B20/10H04N5/913H04N5/92H04N7/167H04N7/16
    • H04N5/913H04N5/9206H04N7/1675H04N2005/91364
    • A recording and reproducing apparatus suitable for keeping the secrecy of video and audio signals recorded in, for example, a video tape recorder for private use to a high degree. A recording portion of the recording and reproducing apparatus is provided with an identification code input device, an operation designating device and an operation circuit. Further, a reproducing portion of the recording and reproducing apparatus is provided with an operation identification device and a comparator. When recording video and audio signals, a scramble pattern for scrambling the video and audio signals is generated from an input identification code to scramble the video and audio signals. Further, a predetermined operation is performed on the input identification code to produce a first ID signal representing a result of the operation. Then, the scrambled video and audio signals, the first ID signal and an operation identification signal indicating data designating the operation are recorded. When reproducing the video and audio signals, the predetermined operation designated by the operation identification signal is performed on an identification code input from the exterior of the apparatus. Then, a second ID signal representing a result of this operation is compared with the first ID signal reproduced by the reproducing portion. Subsequently, a descrambling is performed on the scrambled video and audio signals according to a result of the comparison.
    • 一种用于保持记录在例如用于私人使用的录像机中的视频和音频信号的保密性的记录和再现装置。 记录和再现装置的记录部分设置有识别码输入装置,操作指定装置和操作电路。 此外,记录和再现装置的再现部分设置有操作识别装置和比较器。 当记录视频和音频信号时,从输入的识别码产生用于加扰视频和音频信号的加扰模式以加扰视频和音频信号。 此外,对输入的识别码执行预定的操作,以产生表示操作结果的第一ID信号。 然后,记录加密的视频和音频信号,第一ID信号和指示指示操作的数据的操作识别信号。 当再现视频和音频信号时,由从设备的外部输入的识别码执行由操作识别信号指定的预定操作。 然后,将表示该操作的结果的第二ID信号与由再现部分再现的第一ID信号进行比较。 随后,根据比较的结果对加扰的视频和音频信号执行解扰。
    • 49. 发明授权
    • Image pick-up lens, image pick-up unit, and mobile terminal provided with this image pick-up unit
    • 图像拾取透镜,图像拾取单元以及配有该图像拾取单元的移动终端
    • US07420609B2
    • 2008-09-02
    • US10883216
    • 2004-07-01
    • Susumu YamaguchiEigo Sano
    • Susumu YamaguchiEigo Sano
    • G02B13/16G02B9/12
    • H04N5/2253G02B9/12G02B13/0035G02B13/16G02B13/18H04N5/2254
    • An image pickup lens includes in order from an object side of the image pickup lens: a first lens having positive refractive power whose convex surface faces the object side of the image pickup lens; an aperture stop; a meniscus shaped second lens having positive refractive power whose convex surface faces an image side of the image pickup lens; and a third lens having negative refractive power whose concave surface faces the image side of the image pickup lens, wherein the image pickup lens satisfies the following conditional expressions: 0.8
    • 图像拾取透镜从图像拾取透镜的物体侧依次包括:凸面朝向摄像透镜的物体侧的正屈光力的第一透镜; 孔径光阑; 具有正屈光力的弯月面形状的第二透镜,其凸表面面对图像拾取透镜的像侧; 以及具有负折射力的第三透镜,其凹面面对图像拾取透镜的像侧,其中,图像拾取透镜满足以下条件表达式:<?in-line-formula description =“In-line formula”end =“ 引线“?> 0.8 <?in-line-formula description =” “end =”lead“?> 20 <((nu1 + nu2)/ 2)-nu3 <70(2)<?in-line-formula description =”In-line Formulas“end =”tail“?> 1是第一透镜的焦距,f是图像拾取透镜的总系统的焦距,并且nu1,nu2和nu3分别是第一至第三透镜的阿贝常数。