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1. 发明专利

JPH08294137A PROJECTOR 失效
公开(公告)号：JPH08294137A
公开(公告)日：1996-11-05
申请号：JP9502495
申请日：1995-04-20
申请人： MITSUBISHI ELECTRIC CORP
发明人： NOSE JUNICHI , KOJIMA MASANORI , KIMURA KENJI , ARAHAMA HIDEO , KANEKO HIDEKI , MAENO KENJI , KONYA NAOTO
IPC分类号： G02F1/13 , G03B21/00 , H04N5/74 , H04N9/31
摘要： PURPOSE: To realize a high illuminance and a high resolution compatible with each other by providing a liquid crystal display panels individually to white light modulation and color light modulation in the projector employing the liquid crystal display panel for an optical modulation means. CONSTITUTION: The projector is provided with a liquid crystal display panel 20 driven by a color signal to apply color light modulation to a light and with a liquid crystal display panel 21 driven by a luminance signal whose portion below a prescribed level is compressed by a compression circuit 70 to apply white light modulation to a light and modulated lights by both the liquid crystal display panels 20, 21 are synthesized through a beam splitter 34 and the synthesized light is formed on a screen 4 via a lens 3. It is desired to obtain a color signal and a white level signal to be given to both the liquid crystal display panels 20, 21 from a composite video signal of the NTSC system or the like.

2. 发明专利

JPH06236536A INFORMATION CONVERTING UNIT AND RECORDING AND REPRODUCING DEVICE 失效
公开(公告)号：JPH06236536A
公开(公告)日：1994-08-23
申请号：JP13061593
申请日：1993-06-01
申请人： MITSUBISHI ELECTRIC CORP
发明人： MAENO KENJI , IDO KIHEI , YAMADA MASAKO
IPC分类号： G11B5/588 , G11B15/467 , G11B20/14
摘要： PURPOSE:To provide recording signals which are suitable to a high density recording by generating an information string that is generated by adding one control bit to a (k) bit impressed information string in order to add pilot signals. CONSTITUTION:This device is provided with a circuit 1 which adds control bit 0 or 1 to an impressed information string, a modulator 2, a circuit 3 which adds a known information train to the information train, a circuit 4 which performs a frequency analysis of the train, a memory 5 which temporarily stores the analysis result, a comparator 6, a circuit 7 which selects an output and a memory 8 which records plural modulated strings. Zero or 1 control signal is added to the impressed information string for every 24 bits by the circuit 1, the string is inputted to the I-NRZI modulator 2 and outputted at an Fch frequency as a modulated string with a word which has 25 bits. On the other hand, the generated pilot frequency is 1/150 of the Fch and corresponds to equivalent of six words (150divided by 25=6) where one word has 25 bits. A spectrum of Fch/150 frequency is obtained against all 26 combinations of 0 and 1 control bits which are added to one period of pilot signals, store them in the memory 8 and pilot signals are generated by obtaining a largest modulated string which has a largest power and by impressing it to the output.

3. 发明专利

JPH0644648A MAGNETIC RECORDING AND REPRODUCING DEVICE 失效
公开(公告)号：JPH0644648A
公开(公告)日：1994-02-18
申请号：JP3973093
申请日：1993-03-01
申请人： MITSUBISHI ELECTRIC CORP
发明人： IDO KIHEI , HIBI TAKETOSHI , MAENO KENJI , NOSE JUNICHI , YAMAZAKI TATSUO
IPC分类号： G11B15/467 , H04N5/782 , H04N5/7826
摘要： PURPOSE:To secure a stable S/N and also to improve the performance and reliability of a device by using the signal reproduced from one of two heads which has the narrower head track width, for the production of an ATF error signal. CONSTITUTION:When double azimuth heads 12 are used for the magnetic recording/reproducing device in which four-frequency pilot system is adopted for an ATF servo, the signal with maximum level can be reproduced by either of both heads by using the signal reproduced from one of two heads which has the narrower head track width, for the production of ATF error signal. Also, in the case the regenerative signal inputted to an ATF error signal detection part is limited to either one of the heads A, B like a two-frequency pilot system, the signal with maximum level can be reproduced by either of both heads by setting the head track width of the head outputting the regenerative signal to the ATF error signal detection part to be the same as or narrower than the head track width of another head. As the result, the stable S/N is secured and the reliability of the device is improved.

4. 发明专利

JPH04188908A CHANNEL PRESET CIRCUIT 失效
公开(公告)号：JPH04188908A
公开(公告)日：1992-07-07
申请号：JP31867590
申请日：1990-11-21
申请人： MITSUBISHI ELECTRIC CORP
发明人： MAENO KENJI
IPC分类号： H03J5/02
摘要： PURPOSE:To attain a quick response as compared with the linear chance of a tuning voltage by a conventional switch operation by generating the tuning voltage corresponding to moving amount data. CONSTITUTION:When an operator rotates a control 5b of a shuttle switch 5 clockwise or anticlockwise, the angle of rotation of the control 5b, that is, the moving amount is encoded by rings 41-44 of an encoder 4. The encoded signal is inputted to a tuning voltage data generating circuit 3, and the tuning voltage data generating circuit 3 generates the tuning voltage data which enlarges the tuning voltage in proportion to the size of the encoded angle data. Therefore, a tuning voltage generating circuit 2 can generate the tuning voltage corresponding to the angle of rotation of the shuttle switch. Thus, a channel preset can be exactly and speedily operated.

5. 发明专利

JP2013125192A Projection type image display device, assembling method of variable diaphragm device, and origin adjusting method of variable diaphragm 审中-公开
标题翻译：投影型图像显示装置，可变透镜装置的组装方法和可变膜片的原始调节方法
公开(公告)号：JP2013125192A
公开(公告)日：2013-06-24
申请号：JP2011274713
申请日：2011-12-15
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： MAENO KENJI
IPC分类号： G03B21/14 , G02F1/13 , G03B9/02 , H02P8/14
摘要： PROBLEM TO BE SOLVED: To provide a projection type image display device equipped with a variable diaphragm device 12 capable of controlling an absolute position at a low cost.SOLUTION: A projection type image display device includes: optical modulation devices 2, 3, and 4 for modulating light beams emitted from a light source 14 according to image information; a projection optical device 1 for expanding and projecting modulation light emitted from the optical modulation devices 2, 3, and 4; and a variable diaphragm device 12 disposed between the light source 14 and the optical modulation devices 2, 3, and 4 to adjust light amount of the light beams. The variable diaphragm device 12 is equipped with shielding members 19 and 24 rotated by a stepping motor 15, and of which rotation ranges are mechanically limited. A phase of the stepping motor 15 while the shielding member 19 is positioned at an end of the rotation range, is specified as a predetermined phase.
摘要翻译：要解决的问题：提供一种配备有能够以低成本控制绝对位置的可变光阑装置12的投影型图像显示装置。解决方案：投影型图像显示装置包括：根据图像信息调制从光源14发射的光束的光调制装置2,3和4; 用于扩展和投影从光调制装置2,3和4发射的调制光的投影光学装置1; 以及设置在光源14和光调制装置2,3和4之间的可变光圈装置12，以调节光束的光量。可变隔膜装置12配备有由步进电动机15旋转的遮蔽构件19和24，其旋转范围被机械限制。当屏蔽构件19位于旋转范围的末端时，步进电动机15的相位被规定为预定相位。版权所有（C）2013，JPO＆INPIT

6. 发明专利

JP2004005996A DEVICE FOR REPRODUCING DIGITAL SIGNAL 审中-公开
公开(公告)号：JP2004005996A
公开(公告)日：2004-01-08
申请号：JP2003161596
申请日：2003-06-06
申请人： MITSUBISHI ELECTRIC CORP
发明人： HIBI TAKETOSHI , MAENO KENJI , UEDA NOBUO , HATANAKA KEIJI , HIRANO KEIYU , IDO KIHEI , ONISHI TAKESHI , SHIROSHITA KENJI
IPC分类号： G11B27/34 , G11B27/00 , G11B27/10 , G11B27/19
摘要： PROBLEM TO BE SOLVED: To provide an image reproducing device which has high operability by using a multiscreen to display program contents in a list and selecting the program contents to retrieve a program, has a small circuit scale for the retrieving circuit by performing retrieval with an index signal, and can be configured at a low cost. SOLUTION: A recording circuit stores the image of the programs sectioned by index signals in a multiscreen at the beginning of a magnetic tape, and the multiscreen is displayed in a list when the program is retrieved. One of the programs displayed on the multiscreen is selected and automatically retrieved by counting the number of index signals from a reference point such as the beginning or end of the tape. COPYRIGHT: (C)2004,JPO

7. 发明专利

JP2574939B2 失效
公开(公告)号：JP2574939B2
公开(公告)日：1997-01-22
申请号：JP25271290
申请日：1990-09-20
申请人： MITSUBISHI ELECTRIC CORP
发明人： MAENO KENJI , NAKATANI HIDEHIKO , KONOSHIMA KAZUHIRO
IPC分类号： H04N5/7826 , G11B15/467 , H04N5/782

8. 发明专利

JPH07326089A RECORDING AND REPRODUCING DEVICE 失效
公开(公告)号：JPH07326089A
公开(公告)日：1995-12-12
申请号：JP12006094
申请日：1994-06-01
申请人： MITSUBISHI ELECTRIC CORP
发明人： MAENO KENJI , IDO KIHEI , KOSAKA HIDEAKI
IPC分类号： G04G15/00 , G11B15/02 , H04N5/76
摘要： PURPOSE:To decrease setting items as far as possible by providing the above device with a program information video recording function and to make it possible to easily set video recording reservations by using the special codes corresponding to programs, such as GC codes. CONSTITUTION:Fig. illustrates a remote control device of this device and has a G code reservation setting button 1, an information reservation button 2, a video recording reservation button 3, numeric keys 4 and a cruciform key 5. A user sets a video recording reservation setting mode by pushing the information reservation button 2 when the user desires the reservation again during reproducing of the recorded tape. A warning is displayed and the intended set mode is ended when the program information is not recorded at the tape under reproduction. An information reservation setting screen is displayed and the user sets the recording date with the crucible key 5 when the program information is reproduced. The video recording reservation list is displayed and the user is able to check the reservation contents when the information reservation button 2 is pushed once more. The operation of the video recording reservation setting modes ends and the reservation is complete by pushing the video recording reservation button 2 again when there are no mistakes or changes.

9. 发明专利

JPH07312034A INFORMATION CONVERSION DEVICE AND ENCODING DEVICE 失效
公开(公告)号：JPH07312034A
公开(公告)日：1995-11-28
申请号：JP15901094
申请日：1994-07-11
申请人： MITSUBISHI ELECTRIC CORP
发明人： MAENO KENJI , IDO KIHEI , KOSAKA HIDEAKI
IPC分类号： G11B20/14 , H03M7/14
摘要： PURPOSE:To obtain a high frequency pilot signal close to an encoding period by performing encoding based on a charge value in code word further finely viewing a CDS provided in the code word and known CDS information and forming the code word not propagating to next encoding. CONSTITUTION:A random 16 bits digital signal is inputted to an I-NRZI encoder 3, and an output two bits of a CDS control signal generation circuit 2 is added to the MSB side of the information to be made 18 bits parallel. Four kinds of signals whose CDS values are different from each other are formed by the encoder 3. A charge in the code word is controlled in the period 60 of the pilot signal and GCM 6 bits, and charge values are detected by detection circuits 4. Further, a rate of six stages is formed in the period by a SET CLK to the circuit 2, and the correspondence to the charge values depend on the LCM of 18 and 60. The error of the charge values is detected by circuits 6, and the absolute value sum DELTACDS of the error is imparted to a minimum value holding circuit 7, and top two bits obtaining the minimum value are returned to the encoder 3, and a switch is shifted and modulated. It is inputted to a parallel/serial conversion circuit 8 and outputted to a transmission circuit in series.

10. 发明专利

JPH05327515A INFORMATION CONVERSION SYSTEM AND INFORMATION RECORDING AND REPRODUCING DEVICE 失效
公开(公告)号：JPH05327515A
公开(公告)日：1993-12-10
申请号：JP12457292
申请日：1992-05-18
申请人： MITSUBISHI ELECTRIC CORP
发明人： MAENO KENJI , ONISHI TAKESHI , IDO KIHEI , HIBI TAKETOSHI , YAMADA MASAKO
IPC分类号： H03M7/14 , G11B20/14
摘要： PURPOSE:To improve a converting efficiency by adding one bit control bit to an (m) bit impression information column, and preparing an information column in order to emphasize a pilot signal. CONSTITUTION:The 0 or 1 control signal is added to the impression information column by control bit adding circuits 1 and 2. The information column is inputted to interleaved NRZI(I-NRZI) modulators 3 and 4, and information columns 0 and 1 are prepared. They are inputted to short time frequency analyzers 5 and 6, and the energy of a pilot frequency is analyzed. The size of the energy of the pilot frequency of the information columns 0 and 1 is inputted to a comparator 7, a changeover switch 8 is controlled so that the information column whose energy is larger can be impressed on an output, and the information column is impressed to the output. That is, the energy of the arbitrary frequency components is compared from two kinds of patterns obtained by adding the 0 or 1 bit control bit to the (m) bit information column, and one information column is selected.

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