Patents by Inventor Shunichi Shido

Shunichi Shido has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 5978326
    Abstract: An information processing apparatus, which utilizes a physical phenomenon occurring between a probe and a sample to detect information from the sample, includes a device for moving the probe in order to adjust a clearance between the probe and the sample, a device for detecting a physical phenomenon occurring between the probe and the sample, a device for generating a control signal for the moving device to change the clearance between the probe and the sample to a desired clearance, based on a result of detection of the detecting device, and a device for applying an offset signal to the control signal in order that the probe can move with respect to a reference located at a position deviated from a center position of a movable range of the probe by means of the moving device.
    Type: Grant
    Filed: December 1, 1995
    Date of Patent: November 2, 1999
    Assignee: Canon Kabushiki Kaisha
    Inventor: Shunichi Shido
  • Patent number: 5831961
    Abstract: In an information processing apparatus, at least one of recording and reproduction of information is performed while two-dimensionally scanning a recording medium with a probe, utilizing a physical phenomenon occurring between the probe and the medium. The apparatus includes a scanning mechanism for effecting relative movement between the probe and the medium so as to translate the probe as drawing a circular or elliptic locus on the medium and a recording and/or reproducing circuit for performing at least one of the recording and reproduction of information, utilizing the physical phenomenon during the relative movement.
    Type: Grant
    Filed: February 22, 1996
    Date of Patent: November 3, 1998
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kunihiro Sakai, Katsunori Hatanaka, Takahiro Oguchi, Akihiko Yamano, Shunichi Shido
  • Patent number: 5805560
    Abstract: A recording/reproducing apparatus for performing recording/reproduction by running a probe relative to a recording bit string on a recording medium and detecting recording bits in the recording bit string, comprising a plural-recording-bit-detection device for letting the probe perform plural recording bit detections as taking positions thereof shifted relative to a same recording bit string on the recording medium; and a recording bit determining device for performing determination of true recording bit, based on the results of the plural recording bit detections.
    Type: Grant
    Filed: October 16, 1996
    Date of Patent: September 8, 1998
    Assignee: Canon Kabushiki Kaisha
    Inventors: Ryo Kuroda, Toshihiko Takeda, Shunichi Shido
  • Patent number: 5778134
    Abstract: Apparatus for storing image information in a recording medium, and outputting image information based on editing information includes dividing structure for dividing input image information. A memory is provided for storing each of the divided input image information. The memory includes a plurality of probes, each probe being arranged to oppose the recording medium. The memory also includes scanning structure for relatively moving the probes and the recording medium so that the probes scan a surface of the recording medium. The memory also includes recording and reproducing structure for recording the divided information on the recording medium by using the probes, and for reproducing the divided information recorded on the recording medium. Control circuitry is provided for controlling the scanning structure according to scanning procedures for each of the probes based on the editing information.
    Type: Grant
    Filed: September 3, 1996
    Date of Patent: July 7, 1998
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kunihiro Sakai, Takahiro Oguchi, Akihiko Yamano, Shunichi Shido
  • Patent number: 5757760
    Abstract: In an information recording and/or reproduction apparatus, a recorded bit row on a record medium is relatively scanned with a probe and the recorded bit is detected. The information recording and/or reproduction apparatus includes a scanning unit for effecting a plurality of relative scans of the recorded bit row with the probe, a detecting unit for detecting a tilt of the recorded bit row relative to a direction of the relative scan on the basis of a reproduction signal obtained by the scans performed by the scanning unit, and a correction unit for correcting the direction of the relative scan on the basis of a detected result by the detecting unit.
    Type: Grant
    Filed: January 16, 1997
    Date of Patent: May 26, 1998
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shunichi Shido, Ryo Kuroda
  • Patent number: 5751686
    Abstract: A probe for use in an information recording apparatus for recording information on a recording medium by applying a voltage between the recording medium and a tip of the probe includes a conductive tip, wiring provided on the probe for applying a voltage to the tip from a voltage application device, and an electrical resistance provided in the tip or in the wiring on the probe. The resistance may be composed of an oxide film on the surface of the tip. Instead of providing the electrical resistance, the tip or the wiring may be covered with an electromagnetic shield. As another alteractive, an electrical resistance layer may be provided between a substrate of the recording layer and the tip of the probe.
    Type: Grant
    Filed: June 18, 1996
    Date of Patent: May 12, 1998
    Assignee: Canon Kabushiki Kaisha
    Inventors: Ryo Kuroda, Shunichi Shido
  • Patent number: 5535018
    Abstract: An information processing apparatus for accumulating image information consisting of n pixels and effecting the processing of output of the information is provided with a plurality of memory devices, a distributing device and an output control device. The information is stored in the plurality of memory devices. By the distributing device, the image information consisting of the n pixels are divided into m pixel unit basis (n>m), and the information consisting of the m pixels into a p (m>p) pixel unit basis, and the plurality of information each consisting of the p pixels are distributed to the plurality of memory devices. Upon the output of the image information, the information stored in the plurality of memory devices are selectively outputted by the output control device.
    Type: Grant
    Filed: November 30, 1995
    Date of Patent: July 9, 1996
    Assignee: Canon Kabushiki Kaisha
    Inventors: Akihiko Yamano, Katsunori Hatanaka, Kunihiro Sakai, Takahiro Oguchi, Shunichi Shido
  • Patent number: 5517482
    Abstract: A recording/reproduction of information is performed on a recording medium using a probe as follows. The relative movement between the probe and the recording medium along a track groove of the medium is performed on the basis of a predetermined drive signal. A voltage is applied to between the probe and the recording medium. A tunnel current flowing through the probe upon application of the voltage is detected so as to detect the track groove. A correction signal for correcting the drive signal is obtained on the basis of fuzzy deduction. The probe and the recording medium are driven relative to each other along the track groove in accordance with a drive signal corrected by the correction signal.
    Type: Grant
    Filed: September 26, 1994
    Date of Patent: May 14, 1996
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shunichi Shido, Katsunori Hatanaka, Kunihiro Sakai, Takahiro Oguchi, Akihiko Yamano
  • Patent number: 5510858
    Abstract: A digital television receiver having an STM memory is provided with a receiving unit to receive a broadcasting signal, a producing circuit to produce an image signal and a voice signal from the received broadcasting signal, a memory which is used to record the image signal and the voice signal and has a plurality of probe electrodes and a recording medium arranged so as to face the probe electrodes, a display for converting the image signal outputted from the memory into the video image, and a speaker for converting the voice signal outputted from the memory into the voice sound. The memory further has a voltage applying circuit for applying a voltage to the portion between each probe electrode and the recording medium. The image signal and the voice signal are digital signals.
    Type: Grant
    Filed: December 20, 1993
    Date of Patent: April 23, 1996
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shunichi Shido, Katsunori Hatanaka, Kunihiro Sakai, Takahiro Oguchi, Akihiko Yamano
  • Patent number: 5502710
    Abstract: An image information processing apparatus for processing image information includes a total curvature calculating unit, mean curvature calculating unit, a logical product computing unit and a median filter. A total curvature at each pixel of the image information is calculated by the total curvature calculating unit. A mean curvature at each pixel of the image information is calculated by the mean curvature calculating unit. The logical product computing unit executes computation of a logical product of outputs from the total curvature calculating unit and the mean curvature calculating unit. An output from the logical product computing unit is filtered by the median filter.
    Type: Grant
    Filed: March 8, 1994
    Date of Patent: March 26, 1996
    Assignee: Canon Kabushiki Kaisha
    Inventors: Teruyoshi Washizawa, Katsunori Hatanaka, Kunihiro Sakai, Takahiro Oguchi, Akihiko Yamano, Shunichi Shido
  • Patent number: 5485451
    Abstract: There is disclosed an information recording/reproducing apparatus utilizing a probe electrode and a recording medium, based on the principle of scanning tunnel microscope. When a track groove on the recording medium is detected, the distance control between the probe electrode and the recording medium is suspended. Consequently, the tip of the probe electrode does not enter the track groove, and is prevented from collision with the recording medium. The scanning speed of the probe electrode can, therefore, be increased without the danger of such collision.
    Type: Grant
    Filed: December 28, 1993
    Date of Patent: January 16, 1996
    Assignee: Canon Kabushiki Kaisha
    Inventors: Akihiko Yamano, Katsunori Hatanaka, Kunihiro Sakai, Takahiro Oguchi, Shunichi Shido
  • Patent number: 5471458
    Abstract: An information processing apparatus is provided with a plurality of probes facing a sample, a signal detection circuit, a selection circuit and a memory circuit. The signal detection circuit is selectively connected to the plurality of probes by the selection circuit. A compensation value for compensating for a variation in a detection signal detected by the signal detection circuit when the selection circuit connects one of the plurality of probes to the detection circuit is stored in the memory circuit. The compensation value is provided for the respective probe.
    Type: Grant
    Filed: September 8, 1993
    Date of Patent: November 28, 1995
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takahiro Oguchi, Katsunori Hatanaka, Kunihiro Sakai, Akihiko Yamano, Shunichi Shido
  • Patent number: 5432771
    Abstract: A recording/reproduction of information is effected using a probe electrode arranged to oppose a recording medium. A distance between the probe electrode and the recording medium is controlled by applying a voltage therebetween. A current flowing through the probe electrode upon application of the voltage is detected while the scanning is performed with the probe electrode over the recording medium. A correlation between a signal output according to the current detection and a reference signal is obtained to produce a reproduction signal from which a noise component due to an influence of an atomic step present on a surface of the recording medium is removed. The reproduction of information is effected in accordance with the generated reproduction signal.
    Type: Grant
    Filed: May 3, 1993
    Date of Patent: July 11, 1995
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shunichi Shido, Katsunori Hatanaka, Kunihiro Sakai, Takahiro Oguchi, Akihiko Yamano
  • Patent number: 5394388
    Abstract: Information recording/reproducing apparatus and method by use of probe electrodes are disclosed. In this method, information to be recorded on a recording medium is encoded. The encoded information is distributed to a plurality of probe electrodes. The plurality of probe electrodes are driven on the basis of the distributed information so as to record the information on the recording medium. In reproduction, the information recorded on the recording medium is read out from the recording medium by use of the plurality of probe electrodes. The information read out from the recording medium is stored by use of the plurality of probe electrodes. The stored information is decoded to reproduce the information recorded on the recording medium. The encoding is performed by changing the information to be recorded to information added with an error correction code.
    Type: Grant
    Filed: May 16, 1994
    Date of Patent: February 28, 1995
    Assignee: Canon Kabushiki Kaisha
    Inventors: Katsunori Hatanaka, Kunihiro Sakai, Takahiro Oguchi, Akihiko Yamano, Shunichi Shido
  • Patent number: 5371728
    Abstract: An information recording/reproducing apparatus effects recording of information by moving a probe close to a recording medium and scanning a surface of the medium parallelly with the probe, reading out information by using a micro signal obtained from a physical phenomenon occurring in the scan. The apparatus is provided with plate electrodes and a capacity detecting device. One of the plate electrodes is formed on a substrate which supports the probe. The other plate electrode is formed on a substrate which supports the recording medium. A capacity between the plate electrodes is detected by the capacity detecting device. A gap between the probe and the recording medium is controlled in accordance with the detection result.
    Type: Grant
    Filed: March 3, 1993
    Date of Patent: December 6, 1994
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kunihiro Sakai, Katsunori Hatanaka, Takahiro Oguchi, Akihiko Yamano, Shunichi Shido
  • Patent number: 5371727
    Abstract: An information processing apparatus effects at least one of recording, reproduction and erasure of information on a recording medium having a track groove by use of a probe electrode. Relative movement between the probe electrode and the recording medium is effected by the moving mechanism. A predetermined driving signal is inputted to the moving mechanism so that a predetermined movement of the probe electrode to the groove track is effected. The physical phenomenon caused between the probe electrode and the recording medium is detected, so that the track groove is detected and a correction value for correcting the movement of the probe electrode from the driving signal on the basis of the timing of the detection. The moving mechanism is controlled on the basis of the driving signal and the correction value.
    Type: Grant
    Filed: October 15, 1992
    Date of Patent: December 6, 1994
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shunichi Shido, Katsunori Hatanaka, Kunihiro Sakai, Takahiro Oguchi, Akihiko Yamano
  • Patent number: 5329122
    Abstract: An information processing apparatus for effecting recording of information on and/or reproduction of information from a recording medium is provided with a probe electrode, a cantilever piezo-electric member, a controller and a detector. The probe electrode is relatively displaced to the recording medium by the cantilever piezo-electric member. The controller applies a control signal to the cantilever piezo-electric member to control the cantilever piezo-electric member. The detector detects a minute signal obtained on the tunnel effect caused between the probe electrode and the recording medium. A switch element is further provided on the apparatus so as to electrically disconnect between the cantilever piezo-electric member and the controller during the minute signal being detected by the detector.
    Type: Grant
    Filed: August 26, 1992
    Date of Patent: July 12, 1994
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kunihiro Sakai, Katsunori Hatanaka, Takahiro Oguchi, Akihiko Yamano, Shunichi Shido
  • Patent number: 5323003
    Abstract: A scanning probe microscope is provided with a probe, a scanning device, a detecting device and an output device. The probe is disposed to face the surface of a sample. The scanning device two-dimensionally scans the surface of the sample using the probe. A signal corresponding to the structure of the sample is detected from the probe by the detecting device. From the signal detected in the detecting device, an observation image of the sample is output by the output device. The apparatus is further provided with a correcting device for correcting the scan by the scanning device so that the observation image output from the outputting device is not shifted.
    Type: Grant
    Filed: August 28, 1992
    Date of Patent: June 21, 1994
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shunichi Shido, Toshihiko Miyazaki, Kunihiro Sakai, Takahiro Oguchi, Akihiko Yamano
  • Patent number: 5299184
    Abstract: There is disclosed an information recording/ reproducing apparatus utilizing a probe electrode and a recording medium, based on the principle of scanning tunnel microscope. When a track groove on the recording medium is detected, the distance control between the probe electrode and the recording medium is suspended. Consequently, the tip of the probe electrode does not enter the track groove, and is prevented from collision with the recording medium. The scanning speed of the probe electrode can, therefore, be increased without the danger of such collision.
    Type: Grant
    Filed: May 14, 1992
    Date of Patent: March 29, 1994
    Assignee: Canon Kabushiki Kaisha
    Inventors: Akihiko Yamano, Katsunori Hatanaka, Kunihiro Sakai, Takahiro Oguchi, Shunichi Shido
  • Patent number: 5282191
    Abstract: In a reproducing operation, scanning information is detected while scanning an information string with a probe such that a density of the scan lines is higher than a density of the recorded information, and a logical-sum signal of the plurality of scanning information is used as a reproduced signal. It is thereby possible to prevent deterioration during information processing of the S/N ratio and the like produced due to a positional error of a recording-medium control mechanism caused by various factors.
    Type: Grant
    Filed: June 3, 1992
    Date of Patent: January 25, 1994
    Assignee: Canon Kabushiki Kaisha
    Inventors: Akihiko Yamano, Katsunori Hatanaka, Kunihiro Sakai, Takahiro Oguchi, Shunichi Shido