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1. 发明专利

JPH11224425A OPTICAL DISK INFORMATION WRITING CONTROL METHOD 失效
公开(公告)号：JPH11224425A
公开(公告)日：1999-08-17
申请号：JP34054798
申请日：1998-11-30
申请人： FUJITSU LTD
发明人： IWASA SEIICHI , ETSUNO NAGAAKI , UCHIUMI KENICHI , NAKADA MASAHIRO
IPC分类号： G11B7/00 , G11B7/0045 , G11B7/006 , G11B7/013 , G11B7/125 , H04N5/85
摘要： PROBLEM TO BE SOLVED: To provide an optical information writing control method capable of obtaining a reproduced signal having a satisfactory CN ratio while maintaining correct recording pit shapes even in the case of performing a high- density write-in. SOLUTION: An input CD signal is delayed in a predetermined range in a first delay circuit 1 and the delayed signal is more delayed in a predetermined range in a second delay circuit 2 and a start part control signal, an intermediate part control signal and a completing part control signal are generated from output signals of these first and second delay circuits 1, 2 in a control signal generating circuit 3. Then, the input CD signal is divided into three parts of a stating part, an intermediate part and a completing part by respective control signals in a pulse forming circuit 4 and pulses corresponding to respective parts are generated in the circuit 4 and a space existing immediately before the input CD signal is recongnized and widths or amplitudes of respective pulses are controlled in accordance with this space in a pulse train control circuit 10.

2. 发明专利

JPH07275108A DEVICE FOR DEIFYING DECEASED 失效
公开(公告)号：JPH07275108A
公开(公告)日：1995-10-24
申请号：JP6964794
申请日：1994-04-07
申请人： FUJITSU LTD
发明人： SHIMURA NOBUSHIRO , MORI SATOSHI , MURAKAMI KEIICHI , ETSUNO NAGAAKI
IPC分类号： A47G33/02 , G06Q50/00 , G06Q50/10 , G06Q50/22 , G06F17/60
摘要： PURPOSE:To provide communication with a community to an aged user, etc., and to provide information required for daily prayer and festival without forcing a complicated operation in a festival device in which the symbol of the deceased is enshrined. CONSTITUTION:The information can be received by connecting an electronic household Buddhist altar 1 (in which the deceased is enshrined) to various kinds of.service centers 5, 6, 8 and 9, a remote family 7 and a temple 4, etc., with a public communication line 3, and also, a partial ROM magneto-optical disk(MO) 2 in which a sutra and preaching, etc., are housed can be provided by the temple 4, and the album of the deceased is edited and it is stored in the MO 2. In such a way, the communication with the community can be attained, and.also, the information required for the daily prayer and festival can be provided.

3. 发明专利

JPH0536139A MAGNETO-OPTICAL RECORDING MEDIUM AND MAGNETO-OPTICAL RECORDING METHOD 失效
公开(公告)号：JPH0536139A
公开(公告)日：1993-02-12
申请号：JP17804891
申请日：1991-07-18
申请人： FUJITSU LTD
发明人： ETSUNO NAGAAKI , HASHIMOTO YASUNOBU , TANAKA TSUTOMU , MIHARA MOTONOBU , KITADE YASUHIRO
IPC分类号： G11B11/10 , G11B11/105
摘要： PURPOSE:To eliminate the need for a magnet for recording and to allow the formation of a compact magneto-optical recording device by providing an auxiliary recording layer which is a 3rd layer and a bias layer which is a 4th layer by devising the magnetic characteristics of these layers. CONSTITUTION:This magneto-optical recording medium consists of a memory layer 21 which is a 1st layer, a recording layer 22 which is a 2nd layer, the auxiliary recording layer 23 which is the 3rd layer, and the bias layer 24 which is the 4th layer. The 1st, 2nd and 4th layers are formed as the perpendicularly magnetized films having the magnetic anisotropy perpendicular to the film plane. The 3rd layer is formed as the magnetic film having the magnetic anisotropy smaller than the magnetic anisotropy of the 2nd and 4th layers. The 1st, 2nd and 3rd layers are formed as the magnetic films having or without having a compensation temp. below room temp. and the 4th layer is formed as the magnetic film having a compensation temp. above room temp. The 3rd layer and the 4th layer are so formed that strong exchange bonding strength does not act between these layers. The following relations are maintained between the coercive force of the respective layers and Curie temp.: HC21>HC22, HC23>HC24, TC21

4. 发明专利

JPH04353639A OPTOMAGNETIC RECORDING MEDIUM 失效
公开(公告)号：JPH04353639A
公开(公告)日：1992-12-08
申请号：JP12727791
申请日：1991-05-30
申请人： FUJITSU LTD
发明人： HASHIMOTO YASUNOBU , TANAKA TSUTOMU , MIHARA MOTONOBU , KITADE YASUHIRO , ETSUNO NAGAAKI
IPC分类号： G11B11/10 , G11B11/105
摘要： PURPOSE:To obtain an optomagnetic recording medium in which overwriting is performed without necessity of an initializing magnetic field and a recording magnetic field. CONSTITUTION:In an optomagnetic recording medium in which a rare earth element-transition metal magnetic thin film having a vertical magnetic anisotropy is sequentially magnetically coupled to laminate a memory layer 2 of a first layer, an auxiliary layer 3 of a second layer and an initialized layer 5 of a third layer for initializing the second layer on a substrate 1, the second layer 3 contains a composition having a compensating temperature, and the third layer 5 contains a composition having a compensating temperature of the ambient temperature or lower.

5. 发明专利

JPH0477700A X-RAY IMAGE CONVERSION SHEET 失效
公开(公告)号：JPH0477700A
公开(公告)日：1992-03-11
申请号：JP19044390
申请日：1990-07-20
申请人： FUJITSU LTD
发明人： IWASE NOBUHIRO , KANO HIROSHI , TADAKI SHINJI , HASEGAWA MASAMI , ETSUNO NAGAAKI
IPC分类号： G21K4/00 , G03B42/02
摘要： PURPOSE:To obtain an X-ray image conversion sheet of high sensitivity and high resolution by using a non-volatile resin composite as a fluorescent body dispersed resin composite. CONSTITUTION:An X-ray image conversion sheet can be manufactured by using a non-volatile resin composite as a fluorescent body dispersed resin composite for forming a layer of a stimulating phosphorescent body on a base plate. This very sheet obtained in this way, can be applied to a conversion panel of a recording and reading device of radiation image which is used for a medical X-ray diagnosis. In case that this X-ray image conversion sheet is used for the above device, an image of very clear contrast can be obtained.

6. 发明专利

JPH0476499A X-RAY IMAGE CONVERTING SHEET 失效
公开(公告)号：JPH0476499A
公开(公告)日：1992-03-11
申请号：JP18797890
申请日：1990-07-18
申请人： FUJITSU LTD
发明人： KANO HIROSHI , IWASE NOBUHIRO , TADAKI SHINJI , HASEGAWA MASAMI , ETSUNO NAGAAKI
IPC分类号： G21K4/00 , G03B42/02
摘要： PURPOSE:To improve effectively sensitivity by providing a light reflecting layer formed of a dielectric on at least one surface of a brightness consuming fluorescent material layer. CONSTITUTION:A conductive material of SiO2, AIN, SnO2, In2O3, MgF, LiF, etc. with about 200mum thickness, for example, is deposited or spattered on one surface of an stimulative fluorescent substance layer 2 formed on a glass substrate 3 to form a light reflecting layer 4. Thus, transmitted laser for energization and stimulative luminescence emitted on the rear side can be reflected by the reflecting layer 4 to improve the efficiency of the stimulative luminescence of an image converting sheet.

7. 发明专利

JPH0476088A STIMULABLE PHOSPHOR 失效
公开(公告)号：JPH0476088A
公开(公告)日：1992-03-10
申请号：JP18797990
申请日：1990-07-18
申请人： FUJITSU LTD
发明人： HASEGAWA MASAMI , KANO HIROSHI , IWASE NOBUHIRO , TADAKI SHINJI , ETSUNO NAGAAKI
IPC分类号： G21K4/00 , C09K11/61 , C09K11/62 , C09K11/85
摘要： PURPOSE:To obtain the title phosphor which is improved in the luminous intensi ty of stimulation and in resolution and can reduce radiation dose by calcining a specified raw material mixture in a neutral or reducing atmosphere. CONSTITUTION:A raw material mixture prepared so as to provide a relative ratio corresponding to formula I or II (wherein M is at least one alkali metal selected from Li, Na, K, Rb, and Cs; L is at least one trivalent metal selected from Sc, Y, La, Ce, Pr, Nd, Pm, Sm, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Al, Ga, In, and Tl; X is a halogen selected from F, Cl, and I; 10

8. 发明专利

JPH03163432A METHOD AND DEVICE FOR READING RADIATION IMAGE 失效
公开(公告)号：JPH03163432A
公开(公告)日：1991-07-15
申请号：JP30286889
申请日：1989-11-21
申请人： FUJITSU LTD
发明人： ETSUNO NAGAAKI , KANO HIROSHI , IWASE NOBUHIRO , TADAKI SHINJI , HASEGAWA MASAMI
IPC分类号： G03B42/02 , A61B6/00 , G06T1/00 , H04N5/30
摘要： PURPOSE:To decreases the noises of a semiconductor laser and to improve S/N and graininess as well as to improve image quality by forcibly fluctuating the laser beam oscillated by an intensity-modulated driving current and making multi-longitudinal mode as a time average. CONSTITUTION:The DC driving current supplied from a power source 2 to the semiconductor laser 1 is frequency-modulated by a high-frequency oscillator 3. This frequency is made higher than the threshold frequency corresponding to the resolving power of the read-out images and the frequency determined by the time constant of a photoelectric multiplier 7 of stimulated luminous light. The laser beam oscillated in such a manner has the same mode distribution as the width at which the frequency is fluctuated by the high-frequency modulation and the integrated value of the light intensity is always constant and can be regarded as the substantially less fluctuating DC when viewed from the frequency band necessary for reading the radiation images. The quality of the electric signals from the radiation images accumulated in the stimulable phosphor layer on a recording panel 8 scanned by this laser beam is improved in this way.

9. 发明专利

JPH0383046A DIGITAL X-RAY IMAGE PICKUP DEVICE 失效
公开(公告)号：JPH0383046A
公开(公告)日：1991-04-09
申请号：JP21859089
申请日：1989-08-28
申请人： FUJITSU LTD
发明人： TAKEDA SHIRO , NAMIKI FUMIHIRO , SUGIYAMA YUICHI , SHIMURA NOBUSHIRO , IWASE NOBUHIRO , TADAKI SHINJI , ETSUNO NAGAAKI
IPC分类号： G03B42/02
摘要： PURPOSE:To generate the fluorescence of high intensity by making a laser generation means emit laser light having plural wavelengths. CONSTITUTION:The device is provided with a stimulable phosphor 1 which absorbs and accumulates the energy of X-ray transmitted through an object, the laser generation means 2 for irradiating the stimulable phosphor 1 with exciting laser light, a scanning means 3 for scanning the stimulable phosphor 1 with the laser light, a fluorescence detection means 4 for detecting radiated stimulated luminous light, and a data processing part 5 which processes the signal of the means 4 and generates image information. Then, the laser genera tion means 2 is allowed to emit the laser light having the plural wavelengths. The stimulable phosphor 1 is not the one that the fluorescence is emitted with the light having a specified wavelength as the exciting light and has such charac teristic that the fluorescence is emitted to nearly all the wavelengths when a certain range is prepared, for example, when it is visible light. Thus, the output of the fluorescence is made large.

10. 发明专利

JPH0310238A DIGITAL X-RAY READER 失效
公开(公告)号：JPH0310238A
公开(公告)日：1991-01-17
申请号：JP14481989
申请日：1989-06-07
申请人： FUJITSU LTD
发明人： TAKEDA SHIRO , NAMIKI FUMIHIRO , SUGIYAMA YUICHI , IWASE NOBUHIRO , TADAKI SHINJI , ETSUNO NAGAAKI
IPC分类号： G21K4/00 , A61B6/00 , G03B42/02 , G06T1/00 , H01J37/252
摘要： PURPOSE:To automatically, correctly and early detect the abnormality of image information by comparing the read image information with the standard image information so that the abnormal picture element is detected, and weighting and totaling the number adjoining abnormal picture elements in the block. CONSTITUTION:A reading means 9 reads the image information by photoelectrically converting the stimulated luminous light from the stimulable phospher and A/D-converting an electric signal. A first storing means 1 stores the image information read in the standard condition in a picture element unit. In addition, a second storing means 2 stores the image information to be mea sured read by the reading means 9 similarly to the standard condition in a picture element unit, and a detecting means 3 compares the image information to be measured of the second storing means 2 with the image information of the first storing means 1 and detects the abnormal picture element. Then, a totaling means 4 weights and totals the number of the abnormal picture elements adjoining abnormal picture elements in the block detected by the detecting means so that the abnormality of image information can be automatically esti mated. Therefore, the abnormality of image display can be automatically, cor rectly and early detected.

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