公开(公告)号：CA1132254A

公开(公告)日：1982-09-21

申请号：CA313796

申请日：1978-10-19

Applicant: SONY CORP

Inventor： HIMURO MASAMI ,  YAMADA TOSHIRO ,  MAKINO YOSHIMI

IPC: G11B5/02 ,  G11B5/39 ,  G11B5/49 ,  G11B11/10 ,  G11B11/105 ,  H01F10/22 ,  G11B5/32

Abstract: A pick-up device for reading out information which has been recorded on a magnetic medium. The device comprises a substrate and a layer of soft magnetic material overlying a surface of the substrate, the easy axis or direction of magnetization being normal to the surface and the magnetic material having properties capable of having magnetic bubble domains generated and propagated therein, so that when the pick-up device is used to read out information from a magnetic medium, patterns of magnetic domains are formed in the layer of magnetic material corresponding to the patterns of the recorded information. Although the magnetic material is of the type capable of having magnetic bubble domains generated and propagated therein, there is no need to provide the usual bias field for maintaining the bubble domains or for providing domain-transport or domain-annihilating fields. In one use of the pick-up device, light is transmitted through the substrate and through the layer of magnetic material to be reflected from a layer of light-reflective material back through the magnetic material and the substrate, whereby the polarization of the reflected light is rotated, relative to the polarization of the transmitted light, by an amount determined by the patterns of magnetic domains formed in the layer of magnetic material. Hence, the recorded information can be optically read from the magnetic medium. In another use of this device, a magnetoresistive head is disposed on the substrate, the resistance of this magnetoresistive head being varied as a function of the patterns of magnetic domains formed in the layer of magnetic material.

公开(公告)号：CA1026461A

公开(公告)日：1978-02-14

申请号：CA201997

申请日：1974-06-10

Applicant: SONY CORP

Inventor： NARUSE YOSUKE ,  YOSHIOKA TAISUKE ,  HIMURO MASAMI ,  ITO KEIICHI

IPC: H04N5/85 ,  G11B7/09 ,  G11B7/08

Abstract: An apparatus for recording and/or reproducing information signals is disclosed in which a light beam is substantially forcussed on the mirror surface of a recording medium, the information signals are recorded on said recording medium with said light beam, and the recorded information signals are reproduced with said light beam. The apparatus comprises an optical detecting device for detecting the light beam reflected on the recording medium at least two different positions and a control device for controlling the focus of said light beam in accordance with the output signal from the optical detecting device.

公开(公告)号：DE2610246A1

公开(公告)日：1976-09-30

申请号：DE2610246

申请日：1976-03-11

Applicant: SONY CORP

Inventor： TAKEUCHI KOUICHI ,  ITOH NORIO ,  KOYAMA KUNIYOSHI ,  SHIMADA SATOSHI ,  HIMURO MASAMI

IPC: H04N5/74 ,  H04N9/31

公开(公告)号：DE2427971A1

公开(公告)日：1975-01-02

申请号：DE2427971

申请日：1974-06-10

Applicant: SONY CORP

Inventor： NARUSE YOSUKE ,  YOSHIOKA TAISUKE ,  HIMURO MASAMI ,  ITO KEICHI

IPC: H04N5/85 ,  G11B7/09 ,  G11B7/08

Abstract: An apparatus for recording and/or reproducing information signals is disclosed in which a light beam is substantially forcussed on the mirror surface of a recording medium, the information signals are recorded on said recording medium with said light beam, and the recorded information signals are reproduced with said light beam. The apparatus comprises an optical detecting device for detecting the light beam reflected on the recording medium at least two different positions and a control device for controlling the focus of said light beam in accordance with the output signal from the optical detecting device.

公开(公告)号：FR2490910B1

公开(公告)日：1987-11-20

申请号：FR8117802

申请日：1981-09-21

Applicant: SONY CORP

Inventor： HIMURO MASAMI ,  NISHIGAKI SUSUMU ,  TERUNUMA KAZUHIKO

IPC: H04N9/22 ,  H04N9/26

Abstract: A color image reproducing apparatus having particular utility as a color view finder for a color image pick-up apparatus includes a black and white cathode ray tube for producing a black and white image in response to red, green and blue primary color control signals sequentially supplied thereto; a color filter including red, green and blue horizontal color filter stripes adapted to transmit light of a red, green and blue color, respectively, and arranged vertically in the order of green, blue, red, green, red, blue and green stripes; and electronic shutter for sequentially permitting the transmission of light from the black and white image through the red, green and blue color filter stripes, corresponding to the supply of the red, green and blue primary color control signals to the cathode ray tube, to form a composite color image at a predetermined position; and an objective lens for projecting the black and white image transmitted through the electronic shutter and the color filter stripes to the predetermined position.

公开(公告)号：AU553101B2

公开(公告)日：1986-07-03

申请号：AU7549481

申请日：1981-09-18

Applicant: SONY CORP

Inventor： HIMURO MASAMI ,  NISHIGAKI SUSUMU ,  TERUNUMA KAZUHIKO

IPC: G03B13/02 ,  H04N9/22

公开(公告)号：DE3137458A1

公开(公告)日：1982-05-06

申请号：DE3137458

申请日：1981-09-21

Applicant: SONY CORP

Inventor： HIMURO MASAMI ,  NISHIGAKI SUSUMU ,  TERUNUMA KAZUHIKO

IPC: H04N9/22 ,  H04N9/12

Abstract: A color image reproducing apparatus having particular utility as a color view finder for a color image pick-up apparatus includes a black and white cathode ray tube for producing a black and white image in response to red, green and blue primary color control signals sequentially supplied thereto; a color filter including red, green and blue horizontal color filter stripes adapted to transmit light of a red, green and blue color, respectively, and arranged vertically in the order of green, blue, red, green, red, blue and green stripes; and electronic shutter for sequentially permitting the transmission of light from the black and white image through the red, green and blue color filter stripes, corresponding to the supply of the red, green and blue primary color control signals to the cathode ray tube, to form a composite color image at a predetermined position; and an objective lens for projecting the black and white image transmitted through the electronic shutter and the color filter stripes to the predetermined position.

公开(公告)号：AU4093478A

公开(公告)日：1980-04-24

申请号：AU4093478

申请日：1978-10-20

Applicant: SONY CORP

Inventor： HIMURO MASAMI ,  YAMADA TOSHIRO ,  MAKINO YOSHIMI

IPC: G11B5/02 ,  G11B5/39 ,  G11B5/49 ,  G11B11/10 ,  G11B11/105 ,  H01F10/22 ,  G11B5/12

Abstract: A pick-up device for reading out information which has been recorded on a magnetic medium. The device comprises a substrate and a layer of soft magnetic material overlying a surface of the substrate, the easy axis or direction of magnetization being normal to the surface and the magnetic material having properties capable of having magnetic bubble domains generated and propagated therein, so that when the pick-up device is used to read out information from a magnetic medium, patterns of magnetic domains are formed in the layer of magnetic material corresponding to the patterns of the recorded information. Although the magnetic material is of the type capable of having magnetic bubble domains generated and propagated therein, there is no need to provide the usual bias field for maintaining the bubble domains or for providing domain-transport or domain-annihilating fields. In one use of the pick-up device, light is transmitted through the substrate and through the layer of magnetic material to be reflected from a layer of light-reflective material back through the magnetic material and the substrate, whereby the polarization of the reflected light is rotated, relative to the polarization of the transmitted light, by an amount determined by the patterns of magnetic domains formed in the layer of magnetic material. Hence, the recorded information can be optically read from the magnetic medium. In another use of this device, a magnetoresistive head is disposed on the substrate, the resistance of this magnetoresistive head being varied as a function of the patterns of magnetic domains formed in the layer of magnetic material.

公开(公告)号：CA1042246A

公开(公告)日：1978-11-14

申请号：CA247339

申请日：1976-03-08

Applicant: SONY CORP

Inventor： TAKEUCHI KOUICHI ,  ITOH NORIO ,  KOYAMA KUNIYOSHI ,  SHIMADA SATOSHI ,  HIMURO MASAMI

IPC: H04N5/74 ,  H04N9/31 ,  G02B27/10 ,  G03B21/28

Abstract: A color image projecting apparatus having three cathode ray tubes which produce images different in color and two projecting lenses. A first primary color image reproduced on a first cathode ray tube is projected on a screen through a first projecting lens, and second and third primary color images reproduced on second and third cathode ray tubes are synthesized by a dichroic mirror and then projected on the screen through a second projecting lens. In this case, the projecting axes of the first and second projecting lenses are so arranged to converge two images passed therethrough on the screen.

公开(公告)号：ZA761429B

公开(公告)日：1977-03-30

申请号：ZA761429

申请日：1976-03-09

Applicant: SONY CORP

Inventor： TAKEUCHI KOUICHI ,  KOUICHI TAKEUCHI ,  ITOH NORIO ,  NORIO ITOH ,  HIMURO MASAMI ,  MASAMI HIMURO ,  KOYAMA KUNIYOSHI ,  KUNIYOSHI KOYAMA ,  SHIMADA SATOSHI ,  SATOSHI SHIMADA

IPC: H04N5/74 ,  H04N9/31 ,  H01J