Patents by Inventor Shuichi Nagano
Shuichi Nagano 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).
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Patent number: 7106046Abstract: A current measuring method capable of reducing the size of a current sensor while ensuring electric insulation easily and suitable for enhancing reliability by preventing heat generation. A current measuring device comprises a printed board (3) having a conductor for measurement (4), and a noncontact current sensor (100) being mounted on the printed board (3), wherein the current sensor (100) is mounted on the surface (92) of the printed board (3) opposite to the side provided with the conductor for measurement (4). Since the current sensor (100) is mounted on the rear surface (92), electric insulation between the secondary conductor of the current sensor (100) and the conductor for measurement (4) can be ensured relatively easy.Type: GrantFiled: June 13, 2003Date of Patent: September 12, 2006Assignee: Asahi Kasei EMD CorporationInventors: Shuichi Nagano, Kazutoshi Ishibashi, Koji Shibahara
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Publication number: 20060033487Abstract: A current measuring method capable of reducing the size of a current sensor while ensuring electric insulation easily and suitable for enhancing reliability by preventing heat generation. A current measuring device comprises a printed board (3) having a conductor for measurement (4), and a noncontact current sensor (100) being mounted on the printed board (3), wherein the current sensor (100) is mounted on the surface (92) of the printed board (3) opposite to the side provided with the conductor for measurement (4). Since the current sensor (100) is mounted on the rear surface (92), electric insulation between the secondary conductor of the current sensor (100) and the conductor for measurement (4) can be ensured relatively easy.Type: ApplicationFiled: June 13, 2003Publication date: February 16, 2006Inventors: Shuichi Nagano, Koji Shibahara, Kazutoshi Ishibashi
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Patent number: 6433615Abstract: A sensor 1 produces an output that changes linearly with absolute temperature. In response to the output, a reference voltage generator 13 produces reference voltages Vhigh and Vlow that change linearly with absolute temperature. A Schmidt trigger 14 compares the output signal from a sensor signal amplifier 12 with the reference voltages for performing on-off output. A sensor signal amplifier 12 with a temperature-independent amplification factor amplifies the output signal from the sensor 1 while performing offset compensation. A sensor signal processing circuit 2 is formed out of thin-film silicon disposed on an insulating substrate. The output from the sensor 1 undergoes accurate temperature compensation over a wide temperature range from a low temperature to a high temperature, achieving a reliable operation with accuracy at high temperature.Type: GrantFiled: June 14, 2001Date of Patent: August 13, 2002Assignee: Asahi Kasei Kabushiki KaishaInventors: Shuichi Nagano, Horst-Lothar Fiedler
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Publication number: 20010048646Abstract: A recording and/or reproducing apparatus for a disc-shaped recording medium includes an optical head, a disc rotationally driving unit, a transfer unit, and an eccentricity amount measuring unit. The eccentricity amount measuring unit includes a controller and an error signal generator which generates an error signal exhibiting the amount of relative displacement of a light beam irradiated from the optical head onto the disc-shaped recording medium with respect to a track on such medium. The controller detects the peak and trough values of the error signal supplied from the error signal generator and compares a difference signal exhibiting a difference between the detected peak and trough values and a reference value to calculate the amount of eccentricity of the disc-shaped recording medium based on a comparison output signal.Type: ApplicationFiled: April 19, 2001Publication date: December 6, 2001Applicant: Sony CorporationInventors: Shuichi Nagano, Takashi Kanai
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Publication number: 20010040241Abstract: A sensor 1 produces an output that changes linearly with absolute temperature. In response to the output, a reference voltage generator 13 produces reference voltages Vhigh and Vlow that change linearly with absolute temperature. A Schmidt trigger 14 compares the output signal from a sensor signal amplifier 12 with the reference voltages for performing on-off output. A sensor signal amplifier 12 with a temperature-independent amplification factor amplifies the output signal from the sensor 1 while performing offset compensation. A sensor signal processing circuit 2 is formed out of thin-film silicon disposed on an insulating substrate. The output from the sensor 1 undergoes accurate temperature compensation over a wide temperature range from a low temperature to a high temperature, achieving a reliable operation with accuracy at high temperature.Type: ApplicationFiled: June 14, 2001Publication date: November 15, 2001Inventors: Shuichi Nagano, Horst-Lothar Fiedler
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Patent number: 6313812Abstract: When input equipment is instructed by a remote control unit on the basis of a display of a monitor, a data signal is transmitted from a microcomputer of an AV amplifier to a microcomputer of a CD changer. When the signal is received by a microcomputer of the CD changer, display data is formed in the microcomputer of the CD changer on the basis of data in a memory and is outputted. In the AV amplifier, a switch is switched to the CD changer side. A cursor is formed by the microcomputer of the AV amplifer, the cursor and display data from the CD changer are synthesized by an image synthesizing circuit and displayed on the monitor. When an instruction is generated by the remote control unit on the basis of the display on the monitor, position coordinates of the cursor on the picture plane are generated from the microcomputer of the A/V amplifier to the microcomputer of the CD changer. On the basis of the display data and the position coordinates, the CD changer is controlled by its microcomputer.Type: GrantFiled: October 7, 1997Date of Patent: November 6, 2001Assignee: Sony CorporationInventors: Shuichi Nagano, Akira Katsuyama, Hiroshi Koyama, Takashi Ishizuka, Keiichi Asakura, Takahiro Hirai, Masami Ishikawa, Hiroshi Masuda, Takashi Koya
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Patent number: 6266304Abstract: A recording and/or reproducing apparatus for a disc-shaped recording medium which includes an optical head, a motor driven table for rotating the disc-shaped recording medium, a slider for moving the optical head relative to the motor driven table in a radial direction of the disc-shaped recording medium, an error signal generator for generating an error signal exhibiting the amount of the relative shifting of a spot of a light beam irradiated from the optical head on the disc-shaped recording medium with respect to a track on the disc-shaped recording medium, and a controller which detects a peak value and a trough value of the error signal supplied from the error signal generator and compares the difference between the detected peak value and the detected trough value with a reference threshold value to generate a drive signal for the slider on the basis of the comparison, wherein the drive signal from the controller is supplied to the slider to shift the optical head relative to the motor driven table in tType: GrantFiled: September 21, 1994Date of Patent: July 24, 2001Assignee: Sony CorporationInventors: Shuichi Nagano, Takashi Kanai
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Patent number: 5978324Abstract: A multiple disc changer apparatus has an elastic support mechanism for supporting the recording/reproducing unit on a main body of the apparatus and includes a locking mechanism for controlling the elastic support of the elastic support mechanism when a disc is loaded on the recording/reproducing unit by a chucking mechanism.Type: GrantFiled: January 21, 1997Date of Patent: November 2, 1999Assignee: Sony CorporationInventors: Akihisa Inatani, Shuichi Nagano, Kanji Mita, Shuji Minami, Haruyuki Tamura, Tsutomu Watanabe, Akira Katsuyama, Masami Ishikawa, Taiji Noshitani
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Patent number: 5970205Abstract: A method of reproducing a recording medium on which image data is recorded using an MPEG (Moving Picture Coding Expert Group) or the like, the image data including first image data where all image information for one frame of question is compressed and second image data where information on a change in image information for frames before and after the frame of question is compressed, is characterized in that, when a predetermined portion in the image data recorded on the recording medium is reproduced, reproduction is started from a portion on the recording medium where the first image data is recorded.Type: GrantFiled: January 15, 1998Date of Patent: October 19, 1999Assignee: Sony CorporationInventors: Junichi Nakamura, Kenji Tomizawa, Yoshihiro Machiguchi, Shuichi Nagano
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Patent number: 5959951Abstract: A recording and/or reproducing apparatus has a rotatable housing unit containing a large number of discs arranged in the erect or upright position. The housing unit is arranged on a pivot and the discs are held in the upright or erected positions in the housing unit radially around the pivot. A rotational drive unit rotates the housing unit in response to a signal from an input unit and a detector detects the amount of housing unit rotation. A disc reproducing and/or recording unit is arranged in the plane perpendicular to a plane formed by connecting apices of the number of discs in the housing unit, so that a desired one of the discs arranged as a horizontal toroid can be taken out in a direction perpendicular to the flat surfaces of the disc, that is, perpendicular to the disc in-plane direction.Type: GrantFiled: March 14, 1997Date of Patent: September 28, 1999Assignee: Sony CorporationInventors: Akihisa Inatani, Shuichi Nagano, Kanji Mita
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Patent number: 5828633Abstract: A recording and/or reproducing apparatus for discs includes a housing unit housing a large number of discs, a recording and/or reproducing unit on which one of the discs held within a large number of disc holders provided in the housing unit is selectively loaded, and a transporting mechanism for transporting the disc held within a selected one of the holders of the housing unit to the recording and/or reproducing unit. The disc transporting mechanism detects whether or not the disc is held in the holder. A detection switch is activated when no disc is present in the holder. The housing unit includes a plurality of the holders positioned radially such that the disc surfaces are held upright. The selected disc held in the holder of the disc transporting mechanism is transported by the transporting mechanism in the upright position to the disc reproducing unit and loaded therein.Type: GrantFiled: February 19, 1995Date of Patent: October 27, 1998Assignee: Sony CorporationInventors: Akihisa Inatani, Shuichi Nagano, Kanji Mita, Shuji Minami, Haruyuki Tamura, Tsutomu Watanabe, Akira Katsuyama, Masami Ishikawa, Taiji Noshitani
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Patent number: 5796910Abstract: In a picture data reproducing apparatus, a data dropout from a disc such as a CD-DA can be avoided.Type: GrantFiled: April 4, 1997Date of Patent: August 18, 1998Assignee: Sony CorporationInventors: Shuichi Nagano, Kenji Tomizawa
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Patent number: 5793726Abstract: A video CD has a program area having plural recorded programs and a managemental area in which alternatives for selecting the programs in reproducing the programs are recorded as the managemental information. In the managemental area is pre-recorded an identifier for determining the program reproducing mode as the managemental information. An optical head 34 reproduces the programs from the program area of the video CD, while reproducing the managemental information from the managemental area. A system controller 53 judges the reproducing mode based upon the identifier included in the managemental information and, based upon the judged reproducing mode, selects an alternative based upon the random number if the reproducing mode is the random reproduction mode. The system controller 53 controls the optical head 34 and the servo circuit 37 for reproducing the program associated with the alternative.Type: GrantFiled: August 27, 1996Date of Patent: August 11, 1998Assignee: Sony CorporationInventor: Shuichi Nagano
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Patent number: 5740304Abstract: An apparatus for replaying a disc-shaped recording medium such as a video CD on which first video data into which all of audio data or video information for one frame is compressed as well as second video data into which video information for frames located before and after the frame in question is recorded together with address data, and discrimination data for discriminating between menu data and recorded data is also recorded. The replay apparatus includes a replay section, an input section, a memory and a controller. The replay section loads the disc-shaped recording medium therein and replays the loaded disc-shaped recording medium.Type: GrantFiled: March 10, 1997Date of Patent: April 14, 1998Assignee: Sony CorporationInventors: Akira Katsuyama, Shuichi Nagano, Takashi Koya
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Patent number: 5701385Abstract: An apparatus for replaying a disc-shaped recording medium on which first video data where audio data or all of video information for one frame through MPEG has been compressed, and second video data where video information before and after the frame in question has been compressed have been recorded together with discrimination data indicating the kind of the recording medium, includes a receiver, a replay unit and a display data producing unit. The receiver receives a plurality of disc-shaped recording media. The replay unit is selectively equipped with the disc-shaped recording media which have been received in the receiver, with the relative movement with respect to the receiver. The replay unit includes a head for reading data recorded on the loaded disc-shaped recording medium. The replay unit conducts the replay processing of the data read out from the head.Type: GrantFiled: July 3, 1995Date of Patent: December 23, 1997Assignee: Sony CorporationInventors: Akira Katsuyama, Kenji Tomizawa, Shuichi Nagano, Takashi Koya
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Patent number: 5651087Abstract: In a picture data reproducing apparatus, a data dropout from a disc such as a CD-DA can be avoided.Type: GrantFiled: September 27, 1995Date of Patent: July 22, 1997Assignee: Sony CorporationInventors: Shuichi Nagano, Kenji Tomizawa
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Patent number: 5644558Abstract: A recording and/or reproducing apparatus for discs including a housing unit housing a large number of discs, a recording and/or reproducing unit on which one of the discs held within a large number of disc holders provided in the housing unit is selectively loaded and a transporting mechanism for transporting the disc held within a pre-set one of the holders of the housing unit to the recording and/or reproducing unit. In the course of transporting the disc, the disc transporting mechanism detects whether or not the disc is held in the holder. The housing unit include a plurality of the holders for radially holding the discs with the disc surfaces being erected upright. The disc held in the holder is transported by the transporting mechanism in the upstanding position as far as the disc reproducing unit and there loaded.Type: GrantFiled: May 10, 1996Date of Patent: July 1, 1997Assignee: Sony CorporationInventors: Akihisa Inatani, Shuichi Nagano, Kanji Mita, Shuji Minami, Haruyuki Tamura, Tsutomu Watanabe, Akira Katsuyama, Masami Ishikawa, Taiji Noshitani
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Patent number: 5594709Abstract: A reproducing device which is capable of performing an index search on both a recording medium on which an index point to subdivide a program is beforehand recorded together with programs, and a recording medium on which no index point is beforehand recorded.Type: GrantFiled: November 13, 1995Date of Patent: January 14, 1997Assignee: Sony CorporationInventors: Shuichi Nagano, Kenji Tomizawa
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Patent number: 5134598Abstract: A disk player includes a disk reproducing unit having a normal reproducing mode in which a disk on which digital audio signals are recorded is reproduced in a normal mode at the timing of normal reproducing clocks and a high speed reproducing mode in which the disk is reproduced in a high speed mode at the timing of high speed reproducing clocks having a frequency higher than the frequency of the normal reproducing clocks, and a peak level detection unit for integrating the digital audio signals obtained upon reproducing the disk by the disk reproducing unit operated at the high reproducing speed, at each predetermined time period, comparing the integrated values for the time periods to find a maximum integration value and outputting the maximum integration value as the peak level.Type: GrantFiled: August 1, 1990Date of Patent: July 28, 1992Assignee: Sony CorporationInventor: Shuichi Nagano
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Patent number: 4387595Abstract: A float of a system for pressure feeding of slurry including a main body in the form of a bellows having a liquid and a gas sealed therein. The float has an apparent specific gravity which may vary depending on the value of pressure of a slurry or a driving liquid, whereby the slurry can be continuously fed from at least one slurry supply chamber by a driving liquid under high pressure to a desired destination.Type: GrantFiled: April 3, 1981Date of Patent: June 14, 1983Assignee: Hitachi, Ltd.Inventors: Masakatsu Sakamoto, Kenji Uchida, Shuichi Nagano