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31. 发明专利

JPS6152624A Scan type optical sensor 失效
标题翻译：扫描型光学传感器
公开(公告)号：JPS6152624A
公开(公告)日：1986-03-15
申请号：JP17400284
申请日：1984-08-23
申请人： Fujitsu Ltd
发明人： AMAKO ATSUSHI , IGAKI SEIGO , NAKAKUKI TADAO , YAHAGI HIRONORI , INAGAKI YUSHI
IPC分类号： G02B26/10 , G02B26/02 , G07D7/00
摘要： PURPOSE: To simplify the constitution of a titled sensor, to make it inexpensive, also to use only once piece each of a light source and a photodetector, and to make a trouble for correcting a dispersion unnecessary by executing an optical scan by a gap which has arranged in one line and opposed each one end face of two optical fiber bundles.
CONSTITUTION: Each one end of an optical fiber bundle 2 for leading a light from a light source 1, and an optical fiber bundle 3 for leading said light to a photodetector 3 is arranged in one line and held by fiber holders 6, 7. Also, a scanning part 8 is constituted by providing a gap on the holders 6, 7 so that fibers 2
-1 and 4
-1 , and 2
-n and 4
-n are opposed to each other. Moreover, a rotary slit plate 5 is provided on the gap part which has been cut on the way without changing an order of the fibers of the fiber bundles 2, 4. In this state, when the slit plate 5 is rotated in the direction as indicated with an arrow, the light of the light source 1 passes through in order of the fibers 2
-1 , 2
-2 W2
-n , and executes an opical scan in the scanning part 8. Also, the fibers 4
-1 W4
-1 are switched successively by the slit plate 5, and by synchronizing with the fibers 2
-1 W 2
-n , the light passes through and goes into the photodetector 3. Accordingly, when a medium is carried in the direction as indicated with an arrow 9 by the scanning part 8, the optical scan can be executed in its vertical direction.
COPYRIGHT: (C)1986,JPO&Japio
摘要翻译：目的：为了简化标题传感器的结构，为了便宜，也可以仅使用光源和光电检测器一次，并且通过以间隙执行光学扫描而使得不需要校正色散的麻烦已经布置成一条线并且与两个光纤束的每一个端面相对。构成：用于将来自光源1的光引导的光纤束2的每一端和用于将所述光引导到光电检测器3的光纤束3布置成一条线并由光纤保持器6,7保持。另外通过在保持器6,7上设置间隙来构成扫描部8，使得纤维2-1和4-1以及2-n和4-n彼此相对。此外，旋转狭缝板5设置在已经在路上切割的间隙部分上，而不改变纤维束2,4的纤维的顺序。在这种状态下，当狭缝板5沿着用箭头指示，光源1的光按光纤2-1,2-2-2-n的顺序穿过，并且在扫描部分8中执行光学扫描。而且，光纤4-1- 4-1通过狭缝板5连续切换，并且通过与光纤2-1-2-n同步，光通过并进入光电检测器3.因此，当介质沿着如通过扫描部8的箭头9，可以在其垂直方向上执行光学扫描。

32. 发明专利

JPS60223748A PAPER-SHEETS TRANSPORTING APPARATUS 失效
公开(公告)号：JPS60223748A
公开(公告)日：1985-11-08
申请号：JP7940784
申请日：1984-04-20
申请人： FUJITSU LTD
发明人： NAKAKUKI TADAO , IGAKI SEIGO , AMAKO ATSUSHI , YAHAGI HIRONORI , INAGAKI YUUSHI
IPC分类号： B65H5/06 , B65H9/00
摘要： PURPOSE:To correct the deflection of position by constituting the unit of the transportation part from a plurality of ball bearings for pressing from above and a barrel type roller which revolves in contact with the ball bearings, thus permitting the transported paper sheets to shift automatically to the center. CONSTITUTION:A barrel type roller 3 is fixed onto a revolution shaft 4 at the center-line position and made rotatable, and a plurality of ball bearings 5 are installed onto said barrel type roller 3, and a unit transportation roller is formed so that the barrel type roller 3 is pressed by a certain pressure by a spring, and a plurality of rollers are arranged in straight-line form to form a transportation passage. Therefore, even if a sheet of paper is inserted in the form of deflection from a regular insertion position at a port, the paper can be corrected closely to the center in the transportation process, and if a detector is installed at the terminal part, the paper sheet can be detected always at the correct position.

33. 发明专利

JPS60117117A PHOTOSENSOR 失效
公开(公告)号：JPS60117117A
公开(公告)日：1985-06-24
申请号：JP22430883
申请日：1983-11-30
申请人： FUJITSU LTD
发明人： AMAKO ATSUSHI , IGAKI SEIGO , NAKAKUKI TADAO , YAHAGI HIRONORI , INAGAKI YUUSHI
IPC分类号： G01J1/02 , G01N21/31 , G01N21/89 , G01N21/892 , G07D7/00
摘要： PURPOSE:To increase kinds of distinguishable mediums, by installing free to rotate a plurality of filters of different transmission band zones before a light receptor. CONSTITUTION:In a photosensor consisting of light source 10 and light receiver 11, a plurality of filters of different transmission band zones immediately before a light receiver 11, for example, a group of filters 12 arranged in a circular disc with plural filters free to rotate with a rotating apparatus 13, is installed. When the source 10 irradiates the medium 14, the reflected light becomes incident to the light receiver 11 passing through the filter group 12. At this time, as the filters are rotating, the filters switches a', b', c' consecutively. Consequently, the light receiver 11 can obtain characteristic of spectrum light curve of the reflected signal light as a signal changing by the time and discrimination of mediums of a plurality of kinds can easily be performed.

34. 发明专利

JP2000269822A DATA COMPRESSOR AND DATA RESTORING DEVICE 失效
公开(公告)号：JP2000269822A
公开(公告)日：2000-09-29
申请号：JP6644199
申请日：1999-03-12
申请人： FUJITSU LTD
发明人： YAHAGI HIRONORI , YOSHIDA SHIGERU
IPC分类号： H03M7/40 , G06F17/21
摘要： PROBLEM TO BE SOLVED: To attain data compression at a high compression rate by using an auxiliary dictionary storing character strings such as words especially specific to document data so as to decrease a required storage capacity with respect to, e.g. a compressor for document data and a data uncompressor. SOLUTION: A static word dictionary 4 stores character strings such as conventional words and phrases used usually, a character string detection section 1 detects character strings in original document data together with character strings such as words and phrases included in the static word dictionary 4 and registers them to an extended dictionary 3. An auxiliary dictionary registration section 2 registers character strings except meaningless character strings for registration and the character strings having been registered in advance in the static word dictionary 4 among character strings registered in the extended dictionary 3. After registering character strings specific to document data to the auxiliary dictionary 5, a word division section 6 divides the original document data, retrieves the static word dictionary 4 and the auxiliary dictionary 5 to read data of corresponding to character strings, and a variable length coding section 7 applies compression processing to the data. The compression coded data are restored by this data restoring device (not shown by Fig.).

35. 发明专利

JP2551631B2 失效
公开(公告)号：JP2551631B2
公开(公告)日：1996-11-06
申请号：JP16848788
申请日：1988-07-05
申请人： FUJITSU LTD
发明人： YAHAGI HIRONORI , IGAKI SEIGO , IKEDA HIROYUKI
IPC分类号： G06T7/00

36. 发明专利

JPH08293800A METHOD AND DEVICE FOR DATA COMPRESSION, AND METHOD AND DEVICE FOR DATA RECONSTITUTION 失效
公开(公告)号：JPH08293800A
公开(公告)日：1996-11-05
申请号：JP27157795
申请日：1995-10-19
申请人： FUJITSU LTD
发明人： YAHAGI HIRONORI , SATO NOBUKO , OKADA YOSHIYUKI , YOSHIDA SHIGERU
IPC分类号： H03M7/42 , H03M7/30 , H03M7/40
摘要： PURPOSE: To obtain a data compressing method in which a desirable data compression ratio can be obtained even through a small quantity of memory, and besides, a desirable compression ration can be obtained even in the case where the remarkable contex does not appear at the head of a sentence or the contex itself changes. CONSTITUTION: In the data compressing method in which a data string registering part to register a data string is used, and also, a code information registering part to register the encoded information of the data string constituted so that data to show 'unregistered' is contained beforehand is used, and the encoded information is encoded in accordance with the history of input data, a data string newly registering process (404) which registers newly the object data string to be encoded consisting of the contex and the newly inputted data to the data string registering part when the data string inputted immediately before the newly inputted data is made the contex, a code information newly registering process (412) which registers newly the information of the encoded object data string to the encoded to the code information registering part, a code information output process (409) which outputs the code information registered in the code information registering part, and a code information updating process (41) which updates the code information registering part are provided.

37. 发明专利

JPH06274628A PERSONAL IDENTIFICATION ESTIMATING METHOD 失效
公开(公告)号：JPH06274628A
公开(公告)日：1994-09-30
申请号：JP5909293
申请日：1993-03-18
申请人： FUJITSU LTD
发明人： YAHAGI HIRONORI
IPC分类号： G06T7/00 , G06F15/70
摘要： PURPOSE:To estimate an accurate personal identification with the small number of data by correcting a histogram so as to smoothly change respective gaps in the case of preparing the histogram based on the distribution of the number of coincident windows, and precisely estimating the foot part of the distribution for the number of coincident windows by correcting a source function by inversely converting a corrected function. CONSTITUTION:This method is provided with eccentricity calculation processing 3 for calculating the standardized rate of a relevant function in the source distribution of the number of coincident windows standardized at respective points dividing the foot part of the selected approximate function (S3), eccentricity estimation processing 4 to correct this calculated rate so as to smoothly change it (S4), smoothing processing 5 to smooth the rate corrected by this eccentricity estimation processing 4 (S5), and correction processing 6 to correct the rate smoothed the distribution of the foot part by multiplying the rate smoothed by this smoothing processing 5 to the selected approximate function, and the estimation of the personal identification is performed with high accuracy by using the function corrected by this correction processing 6.

38. 发明专利

JPH05242225A 失效
公开(公告)号：JPH05242225A
公开(公告)日：1993-09-21
申请号：JP17830091
申请日：1991-07-18
申请人： FUJITSU LTD
发明人： IGAKI SEIGO , NIIZAKI TAKU , YAHAGI HIRONORI
IPC分类号： G06T1/00 , G06K9/00 , G06T7/00 , G06F15/62 , G06F15/64
摘要： PURPOSE:To always perform accurate fingerprint collation in accordance with the state change of skin with respect to the fingerprint collating device which compares an inputted fingerprint image with dictionary patterns to identify a person. CONSTITUTION:This device consists of a fingerprint sensor 1 which inputs fingerprint information, a multilevel picture storage part 10 where the output of the fingerprint sensor 1 is temporarily held, a binarizing circuit 2 which binarizes the output of the multilevel picture storage part 10, a feature extracting part 4 which reads out the output of the binarizing circuit 2 to extract feature points, a feature window segmenting part 11 which segments window pictures including feature points extracted by the feature extracting circuit 4, a feature information storage part 12 where the output of the feature window segmenting part 11 is stored, a collating part 13 for pattern carrying out matching between a read fingerprint picture for collation and dictionary patterns stored in the feature information storage part 12, and a threshold correcting part 14 which corrects the threshold for binarization of the binarizing circuit 2 based on the collation result of the collating circuit 13.

39. 发明专利

JPH05165945A DEVICE AND METHOD FOR CALCULATING LINE DIRECTION OF FINGERPRINT 失效
公开(公告)号：JPH05165945A
公开(公告)日：1993-07-02
申请号：JP33036491
申请日：1991-12-13
申请人： FUJITSU LTD
发明人： YAHAGI HIRONORI
IPC分类号： A61B5/117 , G06T7/00
摘要： PURPOSE:To prevent direction misdetection resulting from the investigation of only a narrow area and to speed up processing by efficient scanning with respect to the device and method for the line direction calculation of the fingerprint which detects the directions of rise lines or depression lines of the finger print so that the device and method are used for a fingerprint collation device. CONSTITUTION:An N-directional scanning circuit 14 scans a binary-coded image in a binary-coded image storage device 13 in a direction N and a scanning line length measuring circuit 15 measures the length of a scanning line where the same picture element value succeeds. Segments which are shorter than a specific threshold value are excluded and the directions and lengths of other segments are recorded, dot by dot, in a dot information storage device 16. A dot line direction detecting circuit 17 calculates the local direction of each of the dots from the directions and lengths of segments crossing the dot.

40. 发明专利

JPH05135160A FINGERPRINT COLLATION DEVICE 失效
公开(公告)号：JPH05135160A
公开(公告)日：1993-06-01
申请号：JP16061291
申请日：1991-07-01
申请人： FUJITSU LTD
发明人： YAHAGI HIRONORI
IPC分类号： G06T7/00 , G06K9/00
摘要： PURPOSE:To provide a fingerprint collation device which speedily calculates a local threshold value close to the density of a valley line. CONSTITUTION:A fingerprint collation device consists of a fingerprint sensor 1 which inputs fingerprint information, a gradation image storage part 10 which converts an output of the fingerprint sensor 1 into a gradation image and stores image, a local threshold value calculating circuit 11 which divides the fingerprint image read out from the gradation image storage part 10 into a lattice shape (measure), further divides the respective measures into small measures, and compares the mean value (measure mean) of density of each measure with the mean value (small measure mean) of each small measure to calculate the local threshold value for the binarization of the measures, a binarization circuit 12 which converts the gradation image into binary data by using the threshold value determined by the local threshold value calculating circuit 11, a fingerprint binary image storage part 13 which is stored with feature points of the binary image and a registering and collating circuit 14 which extracts the feature points from the binary image and registers them as a fingerprint dictionary in a fingerprint binary image storage part 13, and collates the fingerprint dictionary with the fingerprint image for collation.

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