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1. 发明授权

US3515391A Automatically reversing magnetic recording and reproducing system 失效
标题翻译：自动反转磁记录和再现系统
公开(公告)号：US3515391A
公开(公告)日：1970-06-02
申请号：US3515391D
申请日：1965-11-15
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： NAKAMURA TAKAHIRO , YABUNO YOSHIO , KAMEDA AKIYOSHI , ARATANI SHOZO
IPC分类号： G11B15/02 , G11B15/08 , G11B15/44 , G11B15/60 , G11B5/02
CPC分类号： G11B15/08 , G11B15/02 , G11B15/448 , G11B15/602

2. 发明授权

US3666883A Speed detection and control 失效
标题翻译：速度检测与控制
公开(公告)号：US3666883A
公开(公告)日：1972-05-30
申请号：US3666883D
申请日：1970-04-30
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： YANO OSAHIKO , NAKAMURA TAKAHIRO , DEGUCHI MASAHIRO
IPC分类号： G01P3/54 , H02P29/00 , G11B5/26 , G11B15/52 , H04N5/78
CPC分类号： G01P3/54 , H02P29/0022
摘要： A method of speed detection comprising the steps of recording pulse signals in a travelling tape or rotating body of magnetic material with an equal distance and reproducing the recorded pulse signals to detect the speed of the tape or the body. Speed control utilizing the above detection means comprises the step of comparing the phases of said reproduced pulse signals and a reference signal of a predetermined frequency to control the tape or body to move at a predetermined speed.
摘要翻译：一种速度检测方法，包括以下步骤：将脉冲信号记录在行走带或磁性材料的旋转体中，并具有相等的距离，并再现所记录的脉冲信号以检测带或体的速度。利用上述检测装置的速度控制包括以下步骤：比较所述再现的脉冲信号的相位和预定频率的参考信号，以控制磁带或身体以预定速度移动。

3. 发明授权

US3673414A Automatic tape feed controlling means 失效
标题翻译：自动带进料控制装置
公开(公告)号：US3673414A
公开(公告)日：1972-06-27
申请号：US3673414D
申请日：1970-09-08
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： TANIGUCHI HIROSHI , NAKAMURA TAKAHIRO , SAKUMOTO HIDEKI
IPC分类号： G11B15/02 , G11B15/08 , G11B15/665 , H01J39/12
CPC分类号： G11B15/6656 , G11B15/08 , Y10T307/773
摘要： The prescribed position along the running direction of the tape is detected and taken out as an electric signal. The unidirectional component of the differentiated output of the detected electric signal is taken out for controlling the tape driving system to feed or stop the tape in a steady condition.
摘要翻译：沿带的行进方向的规定位置被检测并取出作为电信号。检测出的电信号的微分输出的单向分量被取出，用于控制磁带驱动系统在稳定状态下进给或停止磁带。

4. 发明授权

US3662098A Rotary head-type video tape magnetic recording and reproducing system 失效
标题翻译：旋转头型视频磁带录音和再现系统
公开(公告)号：US3662098A
公开(公告)日：1972-05-09
申请号：US3662098D
申请日：1970-05-26
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： YANO OSAHIKO , NAKAMURA TAKAHIRO , DEGUCHI MASAHIRO
IPC分类号： G01P3/54 , G11B27/024 , G11B5/26 , G11B15/52 , H04N5/78
CPC分类号： G11B27/024 , G01P3/54
摘要： A rotary head-type video tape magnetic recording and reproducing system in which, at the time of recording, pulse signals are not only recorded on a running magnetic tape but are regenerated and a tape driving system is controlled in such a manner that the regenerated signals maintain a fixed phase relation with a reference signal; and in which, at the time of reproduction, said pulse signals are regenerated and the tape driving system is so controlled that the regenerated signals and a reference signal maintain a fixed relation between each other, thus facilitating the compiling and recording operation of the magnetic tape.
摘要翻译：一种旋转磁头式录像带磁记录和再现系统，其中在记录时，脉冲信号不仅记录在正在运行的磁带上，而且被再生，并且磁带驱动系统被控制为使得再生信号保持与参考信号的固定相位关系; 并且其中，在再现时，所述脉冲信号被再生，并且磁带驱动系统受到如此控制，使得再生信号和参考信号保持彼此之间的固定关系，从而便于磁带的编译和记录操作。

5. 发明授权

US3665098A Unit for controlling tension of magnetic tape 失效
标题翻译：控制磁带张力单位
公开(公告)号：US3665098A
公开(公告)日：1972-05-23
申请号：US3665098D
申请日：1970-10-07
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： YANO OSAHIKO , NAKAMURA TAKAHIRO , YABU TOSHIOMI
IPC分类号： G11B15/43 , H04N5/78
CPC分类号： G11B15/43
摘要： A unit for controlling the tension of a magnetic tape in which an output of a self-oscillator is recorded on and reproduced from a magnetic tape whose tension is to be controlled, and the phase difference between the reproduced signal and an outside reference signal is detected to control the rotational torque of a tapefeed reel in response to the detected phase difference, whereby the tension of the magnetic tape is kept constant.

6. 发明授权

US3661344A Magnetic recording and reproducing device 失效
标题翻译：磁记录和再现设备
公开(公告)号：US3661344A
公开(公告)日：1972-05-09
申请号：US3661344D
申请日：1970-05-18
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： NAKAMURA TAKAHIRO , YANO OSAHIKO , SAKUMOTO HIDEKI
IPC分类号： G11B15/665 , G03B1/04 , G11B15/32 , G11B23/04
CPC分类号： G11B15/6656
摘要： A magnetic recording and reproducing device of the cartridge loading type utilizing for its operation a movement of the magnetic tape magazine in which a magnetic tape is wound on a reel at the time the cartridge is inserted in and removed from the device. Specifically, a video tape recorder adapted to be mounted with a tape magazine has a mechanism for drawing the tape out of the tape magazine and for bringing the tape into contact with a tape guide provided with a rotary magnetic head or with a stationary magnetic head in response to the movement of the tape magazine when it is inserted in the magnetic tape recorder, a mechanism for removing the magnetic tape from the tape guide, stationary magnetic head or the like and returning it into the magazine in response to the movement of the tape magazine when it is removed from the recorder, a mechanism for bringing the tape out of contact with the tape guide, stationary magnetic head or the like for reducing the friction exerted on the running tape when the tape is fast forwarded or rewound, and a mechanism for making it easy to insert the tape cartridge in and remove it from the tape recorder.
摘要翻译：盒式磁带装载式的磁记录和再现装置，用于在盒被插入到装置中并从装置移除时利用其操作磁带盒的移动，其中磁带被卷绕在卷轴上。具体地说，适用于安装有磁带盒的磁带录像机具有用于将磁带从磁带盒中拉出的机构，并且使磁带与设置有旋转磁头的磁带引导件或固定磁头接触响应于磁带盒插入磁带录音机时的移动，用于从磁带引导件，固定磁头等移除磁带的机构，并响应于磁带的移动将其返回到磁带盒中当磁带从录像机中取出时，用于使磁带与磁带引导件，固定磁头等接触的机构，用于当磁带快速传送或重新卷绕时减少施加在行驶磁带上的摩擦，以及机构以便于将磁带盒插入磁带录音机并将其从磁带录音机中取出。

7. 发明公开

EP1071281A4 AUTOMATIC LUMINANCE ADJUSTMENT DEVICE AND METHOD 有权
标题翻译：装置和方法自动亮度
公开(公告)号：EP1071281A4
公开(公告)日：2001-08-22
申请号：EP99907852
申请日：1999-03-03
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： NAKAMURA TAKAHIRO , HATANO TAKAHISA , OTOME TAKASHI , FUNAMOTO TARO
IPC分类号： G09G3/28 , G09G3/36 , G09G5/10 , H04N5/20 , H04N5/57 , H04N5/53 , H04N5/66
CPC分类号： G09G5/10 , G09G3/28 , G09G3/3611 , G09G2320/0626 , G09G2320/066 , G09G2320/0666 , G09G2320/0693 , G09G2360/16 , H04N5/20 , H04N5/57 , H04N17/04
摘要： A predetermined test signal of a constant luminance is inputted, and luminance values for a given area in a predetermined screen region out of the A/D-converted luminance values are cumulatively added. Then, the luminance level of the test signal before the A/D conversion is adjusted so that the luminance calculated by dividing the sum of the luminance values by the number of luminance values added may be a desired value. Alternatively, after inputting a predetermined test signal of a constant luminance, the luminance level of the test signal before A/D conversion is adjusted so that the video start coordinates and video end coordinates found from the luminance level after the A/D conversion may agree with the ideal coordinates determined from the waveform of the test signal. Further alternatively, without using a test signal, by comparing the luminance level after A/D conversion of the inputted analog video signal with the full scale of the output of an A/D converting circuit, the video start coordinates and video end coordinates are found, and the luminance level of the analog video signal before the A/D conversion is adjusted so that the differences between the video start coordinates and video end coordinates may be minimal. Thus, optimal luminance adjustment is possible.

8. 发明专利

AU6003199A Gamma correction circuit and gamma correction method 未知
公开(公告)号：AU6003199A
公开(公告)日：2000-04-26
申请号：AU6003199
申请日：1999-10-05
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： NAKAMURA TAKAHIRO
IPC分类号： G09G1/16 , G09G3/20 , G09G3/36 , H04N5/202 , H04N5/66 , H04N9/69
摘要： A display device has a gamma correction circuit based on line graph approximation. A memory stores gamma characteristic data of the display device. The gamma characteristic value, white level value, contrast value and black level value are input for adjusting the luminance characteristics of input video signals. A gamma conversion section sets a slope and intercept of the gamma correction so that the input video signal data can be converted to ideal output luminance value of the display.

9. 发明专利

AU2745499A Automatic luminance adjustment device and method 未知
公开(公告)号：AU2745499A
公开(公告)日：1999-09-20
申请号：AU2745499
申请日：1999-03-03
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： NAKAMURA TAKAHIRO , HATANO TAKAHISA , OTOME TAKASHI , FUNAMOTO TARO
IPC分类号： G09G3/28 , G09G3/36 , G09G5/10 , H04N5/20 , H04N5/57

10. 发明专利

DE69225346T2 未知
公开(公告)号：DE69225346T2
公开(公告)日：1998-09-03
申请号：DE69225346
申请日：1992-02-04
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： MATSUMI CHIYOKO , NAKAMURA TAKAHIRO , YAMAGUCHI SUSUMU , OHTAKA HIDEKI , HOSHIAI RYOUICHI , NISHINO MASAKAZU
IPC分类号： G11B20/00 , G11B20/10 , G11B20/12 , G11B20/18 , G11B27/032 , G11B27/036 , G11B27/28 , H04N5/7826 , H04N5/783 , H04N5/913 , H04N5/92 , H04N5/926 , H04N9/804 , H04N9/82 , H04N5/91
摘要： In a digital signal recording and reproducing apparatus, a signal obtained by multiplexing an audio signal on a bit rate reduction encoded video signal is delivered as a transmission signal. The transmission signal is multiplexed with a data showing its content, such as a copy number of times data and an edit number of times data. Depending on the state of reproduction at a reproducing side apparatus, being a source side of transmission, a control data for controlling a recording side apparatus, being a destination side of transmission is also multiplexed.

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