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31. 发明专利

JPH0836756A OPTICAL INFORMATION REPRODUCER 失效
公开(公告)号：JPH0836756A
公开(公告)日：1996-02-06
申请号：JP16816694
申请日：1994-07-20
申请人： TOSHIBA CORP
发明人： MOTOMIYA YOSHINORI
IPC分类号： G11B20/14 , G11B7/00 , G11B7/005 , G11B7/095 , G11B20/10
摘要： PURPOSE:To effectively alleviate the influence of crosstalk by providing a transversal filter having a delay means which has a plurality of taps for inputting a reproduced signal and a weighting and adding means for weighting the output signals of the taps of the delay means with a predetermined tap coefficient in signal processing means. CONSTITUTION:A recording medium 1 in which information is recorded as a mark row is irradiated with an optical beam via an objective lens 4, and a reproduced signal obtained by detecting a diffracted light from the medium 1 is processed by signal processing means to reproduce the information. The processing means has a transversal filter 7 having delay means having a plurality of taps to input the reproduced signal and a weighting and adding means for the output signals of the taps of the delay means with a predetermined tape coefficient. When the wavelength of the beam is lambda, the numerical aperture of the lens is NA and the relative speed between the medium 1 and the beam is v, the delay time tau between the adjacent taps of the plurality of the taps is a value given by the formula.

32. 发明专利

JPH04113571A INFORMATION RECORDER 失效
公开(公告)号：JPH04113571A
公开(公告)日：1992-04-15
申请号：JP23236090
申请日：1990-09-04
申请人： TOSHIBA CORP
发明人： SANO YUSHI , MORI AKIFUMI , MOTOMIYA YOSHINORI
IPC分类号： G11B25/04 , G11B7/00 , G11B7/004
摘要： PURPOSE:To reproduce information such as the picture or sound of an object by a certain head at arbitrary time while continuously recording them by the other head by providing plural heads at various positions of a recording medium in a peripheral direction so as to move them to arbitrary positions mutually independently. CONSTITUTION:Optical heads 3a-3e are provided at the various positions of a disk 1 in the peripheral direction so as to be radially moved by feeding motors 5a-5e, and magnetic heads 4a-4e are provided on the side opposite to the side, where the optical heads 3a-3e are provided, of the disk 1 so as to face to the optical heads 3a-3e. For example, the optical head 3a is used for recording video information, the optical heads 3b and 3c are used for reproducing the video information, the optical head 3d is used for recording even relating information, and the optical head 3e is used for reproducing the event relating information. Thus, while continuously recording the information of the object for a long time, the information of the object can be optionally reproduced when an event is generated or the like.

33. 发明专利

JPS6273432A TRACKING CONTROL DEVICE 失效
公开(公告)号：JPS6273432A
公开(公告)日：1987-04-04
申请号：JP21213185
申请日：1985-09-27
申请人： TOSHIBA CORP
发明人： MOTOMIYA YOSHINORI
IPC分类号： G11B7/09
摘要： PURPOSE:To attain a highly stable tracking control by driving an equivalent circuit having an electrically equivalent characteristic to an actuator together with the actuator so as to compensate a DC offset caused in a tracking error signal. CONSTITUTION:The equivalent electric circuit 111 has a frequency characteristic equivalent electrically to that of the actuator 109, its output is a signal in response to the displacement of the actuator 109 and fed to a compensation gain adjustment circuit 112. The gain of the compensation gain adjustment circuit is decided by taking the gain of an offset generating circuit 110 and a tracking error signal generating circuit 104 into account and its output is fed to the inverting input of an adder provided between the circuit 104 and a gain adjustment circuit 116. In feeding back a signal having a frequency characteristic nearly equal to that of the actuator 109, the effect of an offset generated depending on the displacement of the actuator 109 is avoided.

34. 发明专利

JP2001343230A APPARATUS AND METHOD FOR READING CLOTH PATTERN 失效
公开(公告)号：JP2001343230A
公开(公告)日：2001-12-14
申请号：JP2001102190
申请日：2001-03-30
申请人： TOSHIBA CORP
发明人： URANO TAEKO , IKEDA SHIGERU , SANO KENJI , TAKEDA HIROMITSU , YAMAJI TAKAMI , MOTOMIYA YOSHINORI
IPC分类号： G01B7/28 , A41H43/00 , G01B7/00 , G01B11/24 , G01B21/00 , G01B21/20 , G06K7/00 , G06K7/04
摘要： PROBLEM TO BE SOLVED: To provide a simple and inexpensive apparatus which can read pattern data from cloths having unnoticeable patterns of dents and bumps. SOLUTION: This apparatus for reading the pattern with dents and bumps formed on the cloth has means for detecting a move amount of a probe in an up-down direction by relatively moving the probe to the cloth while the probe held to be movable up and down is kept in contact with the cloth and the pattern, and means for processing signals of the detected up-down movement amount and restoring pattern information.

35. 发明专利

JP2001324763A DISPLAY DEVICE 失效
公开(公告)号：JP2001324763A
公开(公告)日：2001-11-22
申请号：JP2000145370
申请日：2000-05-17
申请人： TOSHIBA CORP
发明人： SHIRATO MASATAKA , MOTOMIYA YOSHINORI , HARADA NOZOMI
IPC分类号： G02F1/13 , G03B21/00 , G09F9/00 , H04N5/66 , H04N5/74
摘要： PROBLEM TO BE SOLVED: To provide a display device capable of displaying a high-definition image enlarged almost twice as large as an original image on a screen positioned at a short distance. SOLUTION: The display device 1 is provided with a liquid crystal panel 101 having an effective display area PS whose diagonal is 12 inches in length and provided with plural display areas where plural pixels are divided per prescribed number unit, a surface light source 301 for illuminating the image displayed on the liquid crystal panel, a lens array 501 including plural lens arrays where plural lenses arranged in accordance with respective display areas of the liquid crystal panel are arranged on a plane surface or a curved surface and for enlarging the image illuminated by the surface light source at a prescribed magnification and projecting the image as an inverted image, and a display screen 701 having an image display area DS whose diagonal is 20 inches in length and long-sideways as compared with the effective display area.

36. 发明专利

JPH11179288A LEVEL DETECTOR AND TREATING DEVICE USING THE SAME 失效
公开(公告)号：JPH11179288A
公开(公告)日：1999-07-06
申请号：JP23434098
申请日：1998-08-20
申请人： TOSHIBA CORP
发明人： SHIRATO MASATAKA , SAITO TSUTOMU , SHIMURA HIROSHI , MOTOMIYA YOSHINORI
IPC分类号： G01B11/00 , B07C3/14 , G06T1/00
摘要： PROBLEM TO BE SOLVED: To improve the accuracy of reading a shape so that the ruggedness on the surface of a letter is accurately detected without being affected by print on the surface of the letter. SOLUTION: A reading area 220 on the surface of a letter 200 is irradiated with illuminating light rays 410, 415 different in wavelength from diagonally above at the left hand side and from diagonally above at the right hand side respectively. Reflected light rays from the reading area 220 are separated into light ray 420 corresponding to the light ray 410 light ray 425 corresponding to the light ray 415 by a dichroic mirror 520, and imaged by CCD line image sensors 540, 545 respectively. Both the images obtained by the CCD line image sensors 540, 545 become the same, except that in parts having a difference in level, a contrast between light and dark is reversed. Therefore, by obtaining difference for every for the two images, information other than that of the parts having the difference in level is offset and position information of the parts having the difference in level can be obtained.

37. 发明专利

JPH1131225A DETECTING DEVICE FOR LABEL OR THE LIKE AND DETECTION PROCESSOR 失效
公开(公告)号：JPH1131225A
公开(公告)日：1999-02-02
申请号：JP18512297
申请日：1997-07-10
申请人： TOSHIBA CORP
发明人： SAITO TSUTOMU , SHIRATO MASATAKA , SHIMURA HIROSHI , MOTOMIYA YOSHINORI
IPC分类号： G01B11/00 , G06T1/00 , G06T7/00
摘要： PROBLEM TO BE SOLVED: To provide a detection processor for operating a prescribed processing by detecting the position of an object to be processed such as a label which can not be detected in a conventional manner. SOLUTION: An object 15 to be processed is illuminated by irradiating the object 15 to be processed such as a mail with a light generated by light sources 11 and 12 which generate a light including at least an ultraviolet area, and the position of an object to be detected such as a label 16 on the object 15 to be processed is detected by a label position detecting part 18 from picture data obtained by image picking-up a picture on the object 15 to be processed by an image pickup device 19. Then, information on the label 16 is recognized according to this detected result, and a processing for the automatic reading classification of the address of the mail is operated based on this information by a processing part 20.

38. 发明专利

JPH08313845A OPTICAL ELEMENT AND OPTICAL DEVICE USING THE SAME 失效
公开(公告)号：JPH08313845A
公开(公告)日：1996-11-29
申请号：JP25501895
申请日：1995-10-02
申请人： TOSHIBA CORP
发明人： MOTOMIYA YOSHINORI , SHIRATO MASATAKA
IPC分类号： G02F1/13 , G02B27/09 , G02B27/18 , H04N5/74
摘要： PURPOSE: To provide an optical device using a spatial modulation element like the projection type liquid crystal display device capable of improving the uniformity of brightness of a light beam to be made incident on a spatial modulation element in addition to the improving of the utilization efficiency of the light from a light source. CONSTITUTION: An optical element 103 converts the incident light having a prescribed shape and a prescribed intensity distribution into the output light of a desired shape having a prescribed intensity distribution. The output light from the optical element 103 has the shape of either a square, a circle or an ellipse. Moreover, this optical device is also provided with an optical element 104 imparting directivity to the light beam shaped in the optical element 103 in addition to the optical element 103.

39. 发明专利

JPH06195743A OPTICAL HEAD APPARATUS 失效
公开(公告)号：JPH06195743A
公开(公告)日：1994-07-15
申请号：JP22436793
申请日：1993-09-09
申请人： TOSHIBA CORP
发明人： HOSHINO ISAO , WACHI AKIKO , MOTOMIYA YOSHINORI
IPC分类号： G02B5/32 , G02B27/00 , G02B27/09 , G11B7/135
摘要： PURPOSE:To share optical elements and to simplify an optical system by deflecting the proceeding direction of the reflecting light passing through a beam shaping functional element by means of a deflecting element and guiding the light to a photodetector. CONSTITUTION:A light source 1 is a laser light source and projects anisotropic beams of light. The light beams are turned to a parallel luminous flux by a collimating lens 2, and further shaped to be isotropic by a beam shaping prism 3. Then, the luminous flux is raised by a mirror 4 and guided to an objective lens 5. The luminous flux is condensed by the lens 5, converged and cast onto a recording surface of an optical disc 13, thereby forming fine beam spots. The light reflected at the recording surface of the disc 13 is sent through lenses 5, 2 in the opposite direction to that when the light is guided to the lens 5, and subsequently diffracted and deflected by a holographic element 6 as a deflecting element. The light is eventually detected by photodetectors 7, 8. The output signal is operated at an operational circuit 10 to generate an error signal. Accordingly, a current of a focus driving coil 12 is controlled, thereby controlling the focal position of the beam spots. In this manner, optical elements are used in common and the optical system is simplified.

40. 发明专利

JPH06111485A OPTICAL INFORMATION RECORDING AND REPRODUCING DEVICE 失效
公开(公告)号：JPH06111485A
公开(公告)日：1994-04-22
申请号：JP28667992
申请日：1992-09-30
申请人： TOSHIBA CORP
发明人： MOTOMIYA YOSHINORI
IPC分类号： G11B7/00 , G11B7/004 , G11B20/14 , H03M7/14 , H03M7/46
摘要： PURPOSE:To effectively utilize information storage ability by setting a ratio between the minimum value of a mark interval or the minimum value of a mark length at the time of recording a mark position and the width of a detection window to an optimum integer ratio. CONSTITUTION:Binary or multilevel data is inputted to an input terminal 11, and is error correction encoded by an error correction encoder 12, and is inputted to an RLL encoder 13. By the encoder 13, a (d, k) code where the number of pieces of continuous appearance of '0' changes at a step (p) larger than one between the minimum value (d) and the maximum value (k) according to the information data is generated. The (d, k) code is recorded on an optical disk 16 as a mark string through an LD driver 14. At a reproducing time, an electric signal according to the mark string is data distinguished using the detection window width with which the ratio of the minimum interval of '1' in an RLL modulation code is set to (d+1): p by a data distinguisher 19, and is demodulated by an RLL demodulator 23. Thus, high recording density is obtained, and a recording medium is miniaturized and made large capacity.

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