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31. 发明专利

JP2009276814A Memory malfunction detecting device for image processing, image display device using the same, and memory malfunction detecting method for image processing 有权
标题翻译：用于图像处理的存储器故障检测装置，使用其的图像显示装置和用于图像处理的存储器故障检测方法
公开(公告)号：JP2009276814A
公开(公告)日：2009-11-26
申请号：JP2008124596
申请日：2008-05-12
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： SHIBUE SHIGENORI , MATOBA TAKASHI , YONEOKA ISAO , ASAMURA YOSHINORI
IPC分类号： G06F12/16 , H04N5/74
摘要： PROBLEM TO BE SOLVED: To provide a memory malfunction detecting device for image processing which correctly detects an abnormal operation without monitoring an image signal when a memory for image processing abnormally operates, and to provide an image display device using the memory malfunction detecting device, and a memory malfunction detecting method for image processing.
SOLUTION: The memory malfunction detecting device for image processing includes: a power source current measuring part 7 for measuring the power source current of a DRAM 5 as a memory for image processing; the memory 9 as a current range holding part for holding a predetermined range (IthL-IthH) of power source current in the DRAM 5 as a memory for image processing; and a fault determining part 8 as a determining part for comparing the measured power source current with the current range (IthL-IthH) held in the memory 9, and determining whether the measured power source current is within the current range (IthL-IthH) or not.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于图像处理的存储器故障检测装置，其在图像处理存储器异常操作时不监视图像信号而正确检测异常操作，并且提供使用存储器故障检测的图像显示装置设备和用于图像处理的存储器故障检测方法。解决方案：用于图像处理的存储器故障检测装置包括：电源电流测量部分7，用于测量作为图像处理的存储器的DRAM 5的电源电流; 存储器9作为电流范围保持部分，用于将DRAM 5中的电源电流的预定范围（IthL-IthH）保持为用于图像处理的存储器; 以及作为确定部分的故障确定部分8，用于将测量的电源电流与保持在存储器9中的电流范围（IthL-IthH）进行比较，并且确定测量的电源电流是否在当前范围内（IthL-IthH）或不。版权所有（C）2010，JPO＆INPIT

32. 发明专利

JP2009043139A Position detecting device 审中-公开
标题翻译：位置检测装置
公开(公告)号：JP2009043139A
公开(公告)日：2009-02-26
申请号：JP2007209168
申请日：2007-08-10
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： MACHIDA NAOYUKI , KITAGUCHI AKIHIRO , SHIBUE SHIGENORI , ASAMURA YOSHINORI
IPC分类号： G06F3/038 , G06F3/041 , G06F3/042
CPC分类号： G06F3/0425 , G06F3/0346 , H04N9/3194
摘要： PROBLEM TO BE SOLVED: To provide a position detecting device that allows simultaneous use by a plurality of users by recognizing positional information about a plurality of pointers and associating the pointers and the users. SOLUTION: The position detecting device includes: a rear projector 1 that projects an image, a projection screen 3 that displays the image projected from the rear projector 1; an imaging means 4 that is located near the rear projector 1 and takes an image of light rays emitted from pointers 10 and 20, from the rear of the projection screen 3; and a coordinate calculating means 5b that analyzes the image taken by the imaging means 4 to detect the two-dimensional positions in the detection areas where the light rays from the pointers 10 and 20 are detected. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种位置检测装置，其允许通过识别关于多个指针的位置信息并使指针和用户相关联，由多个用户同时使用。位置检测装置包括：投射图像的后投影仪1，显示从后投影仪1投影的图像的投影屏幕3; 位于投影仪1附近并从投影屏幕3的后部拍摄从指针10和20发射的光线的图像的成像装置4; 以及坐标计算装置5b，其分析由成像装置4拍摄的图像，以检测来自指针10和20的光线的检测区域中的二维位置。版权所有（C）2009，JPO＆INPIT

33. 发明专利

JP2006337801A Projection type video display device, projection type multi-video display device, and video display method thereof 审中-公开
标题翻译：投影型视频显示装置，投影型多视频显示装置及其视频显示方法
公开(公告)号：JP2006337801A
公开(公告)日：2006-12-14
申请号：JP2005163810
申请日：2005-06-03
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： UOSAKI TETSUSHI , SHIBUE SHIGENORI
IPC分类号： G03B21/00 , G02F1/13 , G02F1/133 , G03B21/10 , G09G3/20 , H04N5/74
摘要： PROBLEM TO BE SOLVED: To provide a projection type video display device which is applicable to any projection type video display device independently of a classification of its display light modulation part and its configuration and can always measure and adjust luminance of a display video.
SOLUTION: The projection type video display device includes; a light source 11, a display light modulation part 13; a light modulation control part 23; a transmission/reflection part 12 for separating emitted light from the light source 11 into transmitted light 52 and a reflected light 53; a luminance measuring part 16 for measuring the luminance of light for measurement out of the transmitted light 52 and the reflected light 53; a storage part 18 for storing an initial constant value of the luminance of light for measurement; and a correction coefficient operation part 17 for operating a correction coefficient which approximately equalizes the measured value of the luminance to the initial constant value in the case the measured value and the initial constant value do not coincide with each other as the result of comparison. The light modulation control part 23 corrects the luminance of a display signal by the correction coefficient outputted from the correction coefficient operation part 17 and then outputs a video signal inputted from the outside.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种适用于任何投影型视频显示装置的投影型视频显示装置，其独立于其显示光调制部分及其配置的分类，并且可以总是测量和调整显示视频的亮度。投影型视频显示装置包括：光源11，显示光调制部13; 光调制控制部23; 用于将来自光源11的发射光分离成透射光52和反射光53的透射/反射部分12; 用于测量透射光52和反射光53中用于测量的光的亮度的亮度测量部分16; 用于存储用于测量的光的亮度的初始常数值的存储部分18; 以及校正系数运算部17，作为比较结果，在测定值和初始常数值不一致的情况下，操作将亮度的测量值近似均衡为初始常数的校正系数。光调制控制部23通过从校正系数运算部17输出的校正系数来校正显示信号的亮度，然后输出从外部输入的视频信号。版权所有（C）2007，JPO＆INPIT

34. 发明专利

JP2006330661A Optical wavelength conversion element and optical wavelength converter 有权
标题翻译：光波长转换元件和光波长转换器
公开(公告)号：JP2006330661A
公开(公告)日：2006-12-07
申请号：JP2005258068
申请日：2005-09-06
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： SAKAI KIYOHIDE , KOYADA YASUHARU , IMASHIRO MASAO , TERAMOTO KOHEI , SHIBUE SHIGENORI
IPC分类号： G02F1/377
摘要： PROBLEM TO BE SOLVED: To prevent the reduction of the quantity of optical coupling to a channel optical waveguide, having a period polarization inversion structure of a nonlinear optical crystal in an optical wavelength conversion element, when the fundamental wave having a large astigmatic difference impinges. SOLUTION: The optical wavelength conversion element includes the channel optical waveguide, having the periodic polarization inversion structure of the nonlinear optical crystal and a slab optical waveguide which is connected to the channel optical waveguide and controls a lateral mode in one direction of the fundamental wave, corresponding to the periodic polarization inversion structure of the nonlinear optical crystal. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题为了防止在具有光波长转换元件的非线性光学晶体的周期偏振反转结构的通道光波导中减少光耦合量，当基波具有大像散差异冲击。解决方案：光波长转换元件包括具有非线性光学晶体的周期性极化反转结构的通道光波导和连接到通道光波导的平板光波导，并且控制横向模式基波对应于非线性光学晶体的周期极化反转结构。版权所有（C）2007，JPO＆INPIT

35. 发明专利

JP2004342388A Discharge lamp driving device and projection image display device 审中-公开
公开(公告)号：JP2004342388A
公开(公告)日：2004-12-02
申请号：JP2003135602
申请日：2003-05-14
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： ASAMURA YOSHINORI , SHIBUE SHIGENORI , YONEOKA ISAO
IPC分类号： H05B37/02
CPC分类号： Y02B20/42
摘要： PROBLEM TO BE SOLVED: To provide a discharge lamp driving device capable of suppressing the flutter of a discharge lamp and lengthening lamp life. SOLUTION: The discharge lamp driving device which drives the lamp 6 by supplying lamp driving current from a lamp power supply 5 to the lamp 6 has a lamp power supply control circuit 4 switching pulse-on superposing a pulse on the lamp driving current and pulse-off not superposing the pulse on the lamp driving current in accordance with the lighting time of the lamp 6. The lamp power supply control circuit 4 controls a lamp power supply 5 so that a pulse-on period and a pulse-off period are alternately repeated at regular time intervals. COPYRIGHT: (C)2005,JPO&NCIPI

36. 发明专利

JP2004341008A Projection type video display device and method for storing information on discharge lamp therefor 有权
公开(公告)号：JP2004341008A
公开(公告)日：2004-12-02
申请号：JP2003134161
申请日：2003-05-13
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： ASAMURA YOSHINORI , SHIBUE SHIGENORI , YONEOKA ISAO , HAMAGUCHI NOBORU
IPC分类号： G03B21/14 , G03B21/00
摘要： PROBLEM TO BE SOLVED: To solve the problem that the content of a lamp memory in a lamp unit is erased or destroyed caused by power source noise because a large power source noise is generated at ignition of a discharge lamp in the case of updating data on operating time or the like for storing information on the discharge lamp in the lamp memory and periodically accessing it in a projection type video display device using the discharge lamp requiring a high voltage of order of kV at the ignition of the discharge lamp.
SOLUTION: In the case of performing the ignition processing of the discharge lamp 12, the power source of the lamp memory 13 for storing information on the lamp 12 is turned off so that the stored content of the lamp memory 13 is prevented from being erased or destroyed by the power source noise at the ignition processing time.
COPYRIGHT: (C)2005,JPO&NCIPI

37. 发明专利

JPH02205194A VIDEO SIGNAL PROCESSING CIRCUIT 失效
公开(公告)号：JPH02205194A
公开(公告)日：1990-08-15
申请号：JP2602189
申请日：1989-02-02
申请人： MITSUBISHI ELECTRIC CORP
发明人： SHIBUE SHIGENORI
IPC分类号： H04N9/83 , G11B20/02 , H04N5/922
摘要： PURPOSE:To reduce the resolution degradation and waveform distortion of a luminance signal by executing the FM demodulation of a signal, for which a small amplitude signal is removed from the output signal of a pre-amplifier and the color component signal of a large amplitude is subtracted from the output signal of the pre-amplifier. CONSTITUTION:The output signal of a low-pass filter 6 is supplied to a deadband circuit 9, which constitutes a large amplitude signal extracting means, and the deadband circuit 9 removes a low level signal and makes a high level signal pass through. Next, the output signal of a pre-amplifier 3 is supplied to a delay equalizer 10 and the output signal of the deadhead circuit 9 is subtracted from the output signal of the delay equalizer 10 by subtracter 11. When a chrominance signal is a large amplitude signal to be the interference of an FM luminance signal, the output signal of the subtracter 11 widely suppresses a low frequency part and when the chrominance signal is a small signal not to nearly any influence, a frequency characteristic is made almost plane. Then, the characteristic is changed according to the size of a chrominance signal level. The output signal of the subtracter 11 is supplied to an FM demodulator 5 and demodulated to a base band luminance signal.

38. 发明专利

JPH01307389A CIRCULATION TYPE COMB LINE FILTER 失效
公开(公告)号：JPH01307389A
公开(公告)日：1989-12-12
申请号：JP13965388
申请日：1988-06-06
申请人： MITSUBISHI ELECTRIC CORP
发明人： SHIBUE SHIGENORI
IPC分类号： H04N9/78 , H03H15/00
摘要： PURPOSE:To enhance S/N improvement effect without introducing color dislocation by inserting an correlation device to instantaneously detect the correlation and non-correlation of an input signal into the feedback loop of a circulation type comb line filter. CONSTITUTION:The title filter consists of a substrate 2, an 1H delay circuit 3, a correlation device 7, and a coefficient circuit 5. The correlation device 7 inserted into the feedback loop instantaneously detects the correlation and non-correlation between an input signal X to the 1H delay circuit 3 and a Y signal in a picture vertical direction. By applying the low pass filter in the picture vertical directions and eliminating a chrominance signal when the correlation exists, and by feeding back the non-correlating component to an input side and subtracting it at the time of the non-correlation, the loop of the filter is closed and an output is stopped. Thus, without generating the color dislocation in the non-correlating part, the S/N improvement effect can be made larger.

39. 发明专利

JPS63262988A VIDEO SIGNAL RECORDING AND REPRODUCING CIRCUIT 失效
公开(公告)号：JPS63262988A
公开(公告)日：1988-10-31
申请号：JP9666487
申请日：1987-04-20
申请人： MITSUBISHI ELECTRIC CORP
发明人： SHIBUE SHIGENORI
IPC分类号： H04N9/83
摘要： PURPOSE:To obtain a good picture quality by applying non-linear preemphasis, executing a Y/C separation by a comb-line filter to record and attenuating a low level signal according to a non-linear deemphasis at the time of a reproduction. CONSTITUTION:At the time of recording, according to an input signal level, a luminance signal (Y signal) and a chrominance signal (C signal) are separated by the comb-line filter 37 after passing a non-linear preemphasis circuit 24 for emphasizing a high frequency component. At the time of a recording, the part high in the saturation of the C signal remarkable in an interference is not emphasized in the non-linear preemphasis circuit 24 to execute the Y/C separation by the comb-line filter 37 and at the time of reproducing, a residual C signal attenuated according to the Y/C separation is attenuated in a non-linear deemphasis circuit 25. Thereby, the leakage of the C signal to the Y signal is reduced and the deterioration in the S/N of the C signal can be suppressed.

40. 发明专利

JPS62265876A TIME BASE CORRECTING DEVICE FOR VIDEO SIGNAL RECORDING AND REPRODUCING DEVICE 失效
公开(公告)号：JPS62265876A
公开(公告)日：1987-11-18
申请号：JP11029686
申请日：1986-05-13
申请人： MITSUBISHI ELECTRIC CORP
发明人： SHIBUE SHIGENORI
IPC分类号： H04N9/89 , H04N5/95
摘要： PURPOSE:To raise the recording level of a pilot signal and to detect the fluctuation of a time base at high accuracy by replacing the pilot signal with some part of an FM signal and inserting the pilot signal. CONSTITUTION:An FM modulator 13 modulates a video signal, and a synchronizing separator circuit 14 and a doubling circuit 15 obtain a reference signal in synchronizatioh with a horizontal synchronizing signal. The FM modulated signal whose back porch part is replaced is supplied from a switch circuit 16 to a tape head system 19 and recorded in it. The reproduced FM signal is suppplied to a synchronizing separator circuit 22 through an FM modulator 21. A phase comparator 25 phase-compares the horizontal synchronizing signal with a reference horizontal synchronizing signal, and obtains a time base error signal. A signal inserted through a switch 27 at the time of recording is sampled. A phase comparator 29 phase-compares the sampled signal with the output of a reference signal generator circuit 23, obtains an error voltage, and controls a variable delay line 32.

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