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1. 发明专利

JPH1063852A COIN RECOGNITION DEVICE 失效
公开(公告)号：JPH1063852A
公开(公告)日：1998-03-06
申请号：JP22357996
申请日：1996-08-26
申请人： OKI ELECTRIC IND CO LTD
发明人： WATANABE NAOHIRO , TAKEDA TAKAYUKI
IPC分类号： G06T7/00 , G07D5/00
摘要： PROBLEM TO BE SOLVED: To obtain a low-cost coin recognition device which can accurately recognize a coin with a stain and rust by determining a denomination according to read image data and changing a binarization means for the image data according to the denomination. SOLUTION: A denomination decision part 9 decides the corresponding denomination according to external diameter data outputted from an image read part 8 and outputs denomination data to a binarization part 10. The binarization part 10 sets a threshold value for binarization according to the digital image data outputted from an image input part 8 and also outputs binarized image data by comparing the image data with the threshold value. According to, specially, the denomination data obtained by the image input part 8, the binarization means is changed so that decision data to be recognized is affected by neither a local stain or rust on the surface of the coin nor a difference in uneven pattern information quantity between the top and reverse surface. Consequently, recognition which is always stable can be performed.

2. 发明专利

JPH08324810A DEVICE FOR TRANSFERRING PAPER SHEET AND THE LIKE 失效
公开(公告)号：JPH08324810A
公开(公告)日：1996-12-10
申请号：JP13336895
申请日：1995-05-31
申请人： OKI ELECTRIC IND CO LTD
发明人： TAKEDA TAKAYUKI , SATO MASAYASU
IPC分类号： B65H5/00 , B65H3/04 , B65H3/18
摘要： PURPOSE: To provide a thin and compact device by reducing the influence of the electric resistance of a paper sheet on its driving characteristic. CONSTITUTION: An endless belt mover 3 is supported by at least two rollers (1 and 2), has at least a double layer structure composed of an insulated layer 31 formed on the side coming into contact with a roller surface and a high resistance layer 32 formed in its surface, and this is wound on the rollers, and a stator 10 is arranged in such a manner that a belt-like electrode surface formed by arraying a plurality of belt-like electrodes 11 at constant pitches in the direction roughly perpendicular to the carrying direction of paper sheets and the like and burying these in an insulator 12 is brought into contact with the insulated layer of the endless belt mover. A driving circuit 20 switches the applied voltages of the belt-like electrode of the stator in sequence, and thereby the endless belt mover is moved by the driving force of an electrostatic force thus generated. At this time, the paper sheets and the like brought into contact by pressure with the high resistance layer as the outer layer part of the endless belt mover are moved by a frictional force.

3. 发明专利

JPH08180235A COIN IDENTIFYING DEVICE 失效
公开(公告)号：JPH08180235A
公开(公告)日：1996-07-12
申请号：JP32429194
申请日：1994-12-27
申请人： OKI ELECTRIC IND CO LTD
发明人： TAKEDA TAKAYUKI
IPC分类号： G07D5/02 , G06T1/00 , G07D5/00
摘要： PURPOSE: To reduce the quantity of data to be processed and to shorten the processing time. CONSTITUTION: A picture input part 1 takes in the surface pattern of a coin 8 as picture signal and a center calculating part 4 calculates the center position of the coin picture inputted from the input part 1. An outline detecting part 5 extracts outline picture elements to be the elements of an edge or a segment having a large density change based upon a binary image obtained from the picture signal inputted from the input part 1 and a discriminating data processing part 6 counts up the number of outline picture elements extracted by the detecting part 5 for every one of previously set plural concentrical areas from the center position of the coin picture which is found out by the calculating part 4. An identification part 7 compares the count value of the processing part 6 with a previously set reference value to discriminate the counterfeit of the coin.

4. 发明专利

JPH0514652A PICTURE RECORDING METHOD 失效
公开(公告)号：JPH0514652A
公开(公告)日：1993-01-22
申请号：JP16455791
申请日：1991-07-04
申请人： OKI ELECTRIC IND CO LTD
发明人： TAKEDA TAKAYUKI , MATSUMOTO KOJI
IPC分类号： B41J2/44 , G03G15/04 , G06K15/22 , H04N1/23
摘要： PURPOSE:To prevent void and blur by reducing a recording energy for a recording picture element to reproduce gradation with a smooth density when a predetermined number of recording picture elements or over is in existence adjacent to non-recording picture element. CONSTITUTION:When recording energy is controlled with respect to four longitudinal/lateral picture elements adjacent to a noted picture element, the noted picture element D(m, n) and four reference picture elements D(m, n-1), D(m-1, n), D(m, n+1), D(m+1, n) adjacent to the noted picture element longitudinally and laterally are indicated in Figure. In this case, (m) indicates the position in the main scanning direction and (n) depicts the position in the subscanning direction. When the noted picture element D(m, n) is a non-recording picture element and three or more among the 4 reference picture elements are recording picture elements, the recording picture element is recorded while the recording energy of the recording picture elements is decreased more than the usual recording energy. Thus, the recording density is implemented while not being changed discontinuously and in other case, the picture elements are recorded by usual recording energy.

5. 发明专利

JPH0470379A MANUFACTURE OF MASTER PRINTING PLATE 失效
公开(公告)号：JPH0470379A
公开(公告)日：1992-03-05
申请号：JP17438690
申请日：1990-07-03
申请人： OKI ELECTRIC IND CO LTD
发明人： SATO MASAYASU , FUKUDA HARUO , TAKEDA TAKAYUKI
IPC分类号： B41J2/325 , B41C1/10 , B41M5/26 , B41M5/382
摘要： PURPOSE:To enhance the adhesion between an image formation material and a hydrophobic master, subsequently, make the peeling-off the material difficult and improve the plate wear of a printing master without the expansion of an image leading to a character image by melting the image formation material and transferring the molten material to the surface of a hydrophilic master to form an image part and heating said image part. CONSTITUTION:A thermal transfer film 10 is heated by a thermal head 13 which is driven by an external signal 12 during a process to wind film using a winding roller 11. Then an image formation 16 applied to the surface of a base film 15 is selectively melted and transferred to the water retaining layer 18 of a hydrophilic master 14. The hydrophilic master 14 is heated by a heater 20 after the image formation material 16 is selectively melted and transferred. In this case, the imgate formation material 16 transferred to the hydrophilic master 14, partly molten, permeates a water retaining layer 18. Subsequetly, the adhesive force working between the image formation material 16 and the hydrophilic master 14 increases significantly, contributing to the significant improvement of a plate wear.

6. 发明专利

JPH0463365A ELECTROPHOTOGRAPHIC RECORDING METHOD AND ELECTROPHOTOGRAPHIC DEVICE 失效
公开(公告)号：JPH0463365A
公开(公告)日：1992-02-28
申请号：JP17438790
申请日：1990-07-03
申请人： OKI ELECTRIC IND CO LTD
发明人： TAKEDA TAKAYUKI , ITO SHINICHI
IPC分类号： G03G15/05 , G03G15/22
摘要： PURPOSE:To facilitate the removal of a fixed toner image and enable the repetitive use of a master, and to prevent an electrostatic latent image carrier from deteriorating by forming a toner image on the surface of a body to be developed and using it as the master. CONSTITUTION:An electrostatic charging device 40 charges an electrostatic latent image carrier 10 electrostatically and uniformly and a data exposure device 50 forms an electrostatic latent image, which is brought into contact with the body 20 to be developed; and a developing device 70 forms a toner image, which is fixed with a flash lamp 110 to form the master. Then the carrier 10 is charged electrostatically by the device 40 and exposed by an entire- surface exposure device 60 through the body 20 to be developed to form a latent image corresponding to the fixed toner image on the carrier 10; and the image is developed by a device 70 and toner is stuck on the toner image. Then a recording base 90 is fed and the toner image is transferred to the base 90. Transfer from the master is repeated by a specific number of times and the toner image on the body 20 to be developed is removed by a blade 121.

7. 发明专利

JPS6423472A TRACK SEEK DEVICE 失效
公开(公告)号：JPS6423472A
公开(公告)日：1989-01-26
申请号：JP18039587
申请日：1987-07-20
申请人： OKI ELECTRIC IND CO LTD
发明人： KUROE SHIGERU , TAKEDA TAKAYUKI , SATO MASAYASU
IPC分类号： G11B21/08 , G11B7/085
摘要： PURPOSE:To attain also high speed seeking by using a pseudo track cross signal at high speed and a corrected cross signal at low speed operation in response to the detection of an identifier part of a track so as to detect the pickup moving speed and to apply the speed control. CONSTITUTION:A control signal S101c from a processor goes to H at the low speed moving in response to the pickup present speed from a present speed generator 150 and a gate output from a gate 148 of a signal processing circuit 140 is not generated. An LPF141 is set by a signal S101c at the same time, a high frequency component of a difference signal S31 at track crossing by a pickup from an optical 2-split detector is eliminated, a track identification part cross signal in pit form is detected excellently, the pickup moving present speed from the present speed generator 150 is detected to apply speed control seeking. On the other hand, a sum signal S30 via a gate 148 and a identifier part by a monostable multivibrator are outputted through a switching circuit 144 by using the signal at crossing at the high speed, a pseudo track cross signal formed by a correction counter 154 is used to attain high speed seeking without any hindrance.

8. 发明专利

JPS6350924A OBJECTIVE LENS DRIVING DEVICE 失效
公开(公告)号：JPS6350924A
公开(公告)日：1988-03-03
申请号：JP19429886
申请日：1986-08-20
申请人： OKI ELECTRIC IND CO LTD
发明人： NOSE ISAMU , MAZAKI YUTAKA , TAKEDA TAKAYUKI
IPC分类号： G11B7/09 , G11B7/085
摘要： PURPOSE:To heighten a fast accessing capacity, and to miniaturize and make a device light weight, by providing a supporting part at a lens holder, and arranging control coils at both sides of an objective lens. CONSTITUTION:A parallel beam 123 emitted from an optical system 122 is converged on the recording plane of an optical disk 116, and a focus error, and a tracking error are detected, and the detection of a signal is performed. When the focus error is detected, the objective lens 103 approaches to and separates from the plane of the optical disk 116, then focus control is performed. When the tracking error is detected, the objective lens 103 is moved in the radius direction of the optical disk 116 with a mirror 19, then tracking control is performed. When access control is performed, the tracking control is placed under an OFF-state once, and after the objective lens is moved by a desired quantity, it is placed under an ON-state again.

9. 发明专利

JPS6214331A OPTICAL HEAD 失效
公开(公告)号：JPS6214331A
公开(公告)日：1987-01-22
申请号：JP15238185
申请日：1985-07-12
申请人： OKI ELECTRIC IND CO LTD
发明人： TAKEDA TAKAYUKI , MAZAKI YUTAKA
IPC分类号： G11B7/085 , G11B21/02
摘要： PURPOSE:To prevent the generation of a track offset by providing the 1st and 2nd coils which pierce through a magnetic gap of a magnetic circuit member and have prescribed angles in the magnetic gap. CONSTITUTION:When the 1st coil 27 is conducted toward an arrow (g) and the 2nd coil 28 is conducted toward and arrow (j) respectively, the forces f1' and -f2' of motion are produced at both coils 27 and 28 respectively. An objective lens holder 17 is moved toward an arrow (k) together with a carriage 21 by the synthetic force F' of both forces f1' and -f2'. While the synthetic force -F' is produced when the coils 27 and 28 are conducted toward the arrow heads (h) and (i) respectively. Then the holder 17 is moved toward an arrow head (l) together with the carriage 21. Then the prescribed track control or the access control is carried out by controlling the condition direction, the conduction current value or the conduction time of both coils 27 and 28. Thus the stable reading reproduction signal is always secured with no track offset.

10. 发明专利

JPS61199978A THERMAL TRANSFER RECORDER 失效
公开(公告)号：JPS61199978A
公开(公告)日：1986-09-04
申请号：JP3884985
申请日：1985-03-01
申请人： OKI ELECTRIC IND CO LTD
发明人： TAKEDA TAKAYUKI , MAZAKI YUTAKA , KUROE SHIGERU , NOSE ISAMU
IPC分类号： B41J2/325 , B41J31/14
摘要： PURPOSE:To lengthen the service life of a base film by lessening the effects of heat on the base film by providing a mobile means to allow the base film and a counter roller to contact with each other or separate from each other. CONSTITUTION:A counter roller 34 is turned to the direction of arrow H by rotation of an ink supply roller 33 to the direction of G, and a fixed amount of ink 18 from an ink trap P is coated on the surface of the roller 34. A back-up plate 43 is lowered at a given timing by a movable means to push the back side of a base film 13, and the surface of the base film 13 is pressed on the roller 34. A fixed amount of ink layer 18a is orderly coated on the surface of the film 13. Since the film 13 does not receive heat directly from the roller 33 and the ink trap P, the service life of the base film 13 can be lengthened.

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