Patents by Inventor Atsushi Yoshioka
Atsushi Yoshioka 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: 8311389Abstract: A digital information recording apparatus includes a recording circuit for recording information of a retention period included in the digital information and indicating a period for permitting the digital information to be held in the recording medium, starting with a time at which the digital information is recorded on the recording medium; and information of a playback permission period included in the digital information and indicating a period for permitting the digital information to be played back starting with a time at which the information is reproduced initially following recording of the digital information on the recording medium, permitting temporary recording or copying for the information permitted for “copy never” or “copy one generation.Type: GrantFiled: August 6, 2007Date of Patent: November 13, 2012Assignee: Hitachi, Ltd.Inventors: Hiroo Okamoto, Hitoaki Owashi, Atsushi Yoshioka
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Patent number: 8213630Abstract: Practical speaker connection is identified using a device having a sound channel of a 5.1 channel or 7.1 channel, and a device is provided that can easily reproduce the optimum multiple channels. Actual speaker arrangement can be identified by, for example, measuring the impedance of a terminal at the side of an audio amplifier. If incorrect connection is found, a warning is issued. This information is transmitted to a signal source with an EDID and a signal with the optimum a number of sound channel is sent. The EDID is also used for the connection with a display unit and the speaker connection with which the display unit is provided uniquely. For example, a sound through the 7.1 channel is easily reproduced using the speaker of the display unit in the channel of the front speaker.Type: GrantFiled: October 14, 2008Date of Patent: July 3, 2012Assignee: Hitachi, Ltd.Inventors: Kazuhiko Yoshizawa, Nobuaki Kabuto, Atsushi Yoshioka
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Publication number: 20110096935Abstract: Practical speaker connection is identified using a device having a sound channel of a 5.1 channel or 7.1 channel, and a device is provided that can easily reproduce the optimum multiple channels. Actual speaker arrangement can be identified by, for example, measuring the impedance of a terminal at the side of an audio amplifier. If incorrect connection is found, a warning is issued. This information is transmitted to a signal source with an EDID and a signal with the optimum a number of sound channel is sent. The EDID is also used for the connection with a display unit and the speaker connection with which the display unit is provided uniquely. For example, a sound through the 7.1 channel is easily reproduced using the speaker of the display unit in the channel of the front speaker.Type: ApplicationFiled: December 31, 2010Publication date: April 28, 2011Applicant: Hitachi, Ltd.Inventors: Kazuhiko Yoshizawa, Nobuaki Kabuto, Atsushi Yoshioka
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Patent number: 7856560Abstract: In a digital information recording/reproducing apparatus, information recorded on a hard disk with copy restriction thereof is protected from being copied onto other hard disks by means of a PC, etc., to be produced a large number of illegal copies, i.e., infringing a copyright. The information is recorded onto a hard disk drive through encryption thereof, with using an identification being number unique thereto, when it is recorded onto the hard disk. With this, normal reproduction is prevented, since the drive identification number necessary for decryption is different from, even if it is copied onto the other hard disk. Also, a version information of the hard disc is memorized in an information management circuit. When the information is illegally copied onto the other hard disc, the version information is changes; therefore it does not coincide with the version information memorized in the information management circuit.Type: GrantFiled: January 28, 2008Date of Patent: December 21, 2010Assignee: Hitachi, Ltd.Inventors: Hiroo Okamoto, Manabu Sasamoto, Atsushi Yoshioka
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Publication number: 20100051973Abstract: A light-emitting device includes a light-reflecting layer, a first electrode disposed on or above the light-reflecting layer, a semi-transparent reflective second electrode, a light-emitting function layer disposed between the first electrode and the second electrode, and an electron-injection layer disposed between the light-emitting function layer and the second electrode. The second electrode is made of an Ag alloy having an Ag content of from 50% by atoms to 98% by atoms.Type: ApplicationFiled: August 25, 2009Publication date: March 4, 2010Applicant: SEIKO EPSON CORPORATIONInventors: Hidekazu KOBAYASHI, Koya SHIRATORI, Atsushi YOSHIOKA
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Publication number: 20090290851Abstract: According to a video information outputting apparatus, a video information receiving apparatus, a video information outputting method and a video information transmitting method, for receiving and outputting digital video information. The digital information is outputted in the same quality as it is, when it is certificated that an external apparatus operates according to a copy control information, while no information limited on copying thereof is outputted when it is not. It thereby prevents the information, which is outputted from the video information outputting apparatus to an external apparatus, from being used in other purposes than the original object thereof, thereby giving disadvantages onto the producer and/or copyright owner of the information.Type: ApplicationFiled: August 5, 2009Publication date: November 26, 2009Applicant: Hitachi, Ltd.Inventors: Hiroo Okamoto, Nobuaki Kabuto, Hitoaki Owashi, Atsushi Yoshioka
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Patent number: 7587126Abstract: According to a video information outputting apparatus, a video information receiving apparatus, a video information outputting method and a video information transmitting method, for receiving and outputting digital video information. The digital information is outputted in the same quality as it is, when it is certificated that an external apparatus operates according to a copy control information, while no information limited on copying thereof is outputted when it is not. It thereby prevents the information, which is outputted from the video information outputting apparatus to an external apparatus, from being used in other purposes than the original object thereof, thereby giving disadvantages onto the producer and/or copyright owner of the information.Type: GrantFiled: March 14, 2002Date of Patent: September 8, 2009Assignee: Hitachi, Ltd.Inventors: Hiroo Okamoto, Nobuaki Kabuto, Hitaoki Owashi, Atsushi Yoshioka
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Publication number: 20090041257Abstract: Practical speaker connection is identified using a device having a sound channel of a 5.1 channel or 7.1 channel, and a device is provided that can easily reproduce the optimum multiple channels. Actual speaker arrangement can be identified by, for example, measuring the impedance of a terminal at the side of an audio amplifier. If incorrect connection is found, a warning is issued. This information is transmitted to a signal source with an EDID and a signal with the optimum a number of sound channel is sent. The EDID is also used for the connection with a display unit and the speaker connection with which the display unit is provided uniquely. For example, a sound through the 7.1 channel is easily reproduced using the speaker of the display unit in the channel of the front speaker.Type: ApplicationFiled: October 14, 2008Publication date: February 12, 2009Applicant: Hitachi, Ltd.Inventors: Kazuhiko YOSHIZAWA, Nobuaki Kabuto, Atsushi Yoshioka
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Publication number: 20080310826Abstract: A digital information recording apparatus includes multiple recording circuits for making multiple copies. The apparatus limits the number of copies, however, in accordance with copy information provided within the digital information itself. When the number of copies is reached, if additional copies are to be made, then the source copy is disabled when a new copy is made.Type: ApplicationFiled: November 19, 2007Publication date: December 18, 2008Applicant: Hitachi, Ltd.Inventors: Hiroo Okamoto, Hitoaki Owashi, Atsushi Yoshioka
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Publication number: 20080141038Abstract: In a digital information recording/reproducing apparatus, information recorded on a hard disk with copy restriction thereof is protected from being copied onto other hard disks by means of a PC, etc., to be produced a large number of illegal copies, i.e., infringing a copyright. The information is recorded onto a hard disk drive through encryption thereof, with using an identification being number unique thereto, when it is recorded onto the hard disk. With this, normal reproduction is prevented, since the drive identification number necessary for decryption is different from, even if it is copied onto the other hard disk. Also, a version information of the hard disc is memorized in an information management circuit. When the information is illegally copied onto the other hard disc, the version information is changes; therefore it does not coincide with the version information memorized in the information management circuit.Type: ApplicationFiled: January 28, 2008Publication date: June 12, 2008Applicant: Hitachi, Ltd.Inventors: Hiroo OKAMOTO, Manabu SASAMOTO, Atsushi YOSHIOKA
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Patent number: 7343012Abstract: In transmission of stream data protected for copyright on a bus, transcription of stream data once recorded on a recording apparatus to a medium of another recording apparatus is realized. Authentication is carried out between a stream recording and playback apparatus and another recording apparatus to interchange a key for data scramble. By using this key, data is added with copy control information used when the data is recorded initially and thereafter the data is transmitted. After the data has been recorded on the recording apparatus, the data is deleted from an original recording medium. During transmission of the data, authentication from a different apparatus is rejected to prevent a plurality of copies from being made.Type: GrantFiled: December 10, 2001Date of Patent: March 11, 2008Assignee: Hitachi, Ltd.Inventors: Yoshimichi Kudo, Hitoaki Owashi, Atsushi Yoshioka, Hiroo Okamoto
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Patent number: 7340613Abstract: In a digital information recording/reproducing apparatus, information recorded on a hard disk with copy restriction thereof is protected from being copied onto other hard disks by means of a PC, etc., to be produced a large number of illegal copies, i.e., infringing a copyright. The information is recorded onto a hard disk drive through encryption thereof, with using an identification being number unique thereto, when it is recorded onto the hard disk. With this, normal reproduction is prevented, since the drive identification number necessary for decryption is different from, even if it is copied onto the other hard disk. Also, a version information of the hard disc is memorized in an information management circuit. When the information is illegally copied onto the other hard disc, the version information is changes; therefore it does not coincide with the version information memorized in the information management circuit.Type: GrantFiled: October 4, 2002Date of Patent: March 4, 2008Assignee: Hitachi, Ltd.Inventors: Hiroo Okamoto, Manabu Sasamoto, Atsushi Yoshioka
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Publication number: 20080031591Abstract: A digital information recording apparatus includes a recording circuit for recording information of a retention period included in the digital information and indicating a period for permitting the digital information to be held in the recording medium, starting with a time at which the digital information is recorded on the recording medium; and information of a playback permission period included in the digital information and indicating a period for permitting the digital information to be played back starting with a time at which the information is reproduced initially following recording of the digital information on the recording medium, permitting temporary recording or copying for the information permitted for “copy never” or “copy one generation.Type: ApplicationFiled: August 6, 2007Publication date: February 7, 2008Inventors: Hiroo Okamoto, Hitoaki Owashi, Atsushi Yoshioka
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Patent number: 7310823Abstract: A digital information recording apparatus includes multiple recording circuits for making multiple copies. The apparatus limits the number of copies, however, in accordance with copy information provided within the digital information itself. When the number of copies is reached, if additional copies are to be made, then the source copy is disabled when a new copy is made.Type: GrantFiled: April 25, 2002Date of Patent: December 18, 2007Assignee: Hitachi, Ltd.Inventors: Hiroo Okamoto, Hitoaki Owashi, Atsushi Yoshioka
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Patent number: 7289168Abstract: A video processing device includes a control circuit for detecting a physical quantity related to a size of noise contained in the input video signal, and an OSD (On Screen Display) circuit for providing a user with a warning screen when the physical quantity detected by the control circuit is larger than a prescribed value, obtaining an appropriate video signal even when a digital video signal has poor quality.Type: GrantFiled: February 8, 2006Date of Patent: October 30, 2007Assignee: Hitachi, Ltd.Inventors: Kazuhiko Yoshizawa, Nobuaki Kabuto, Atsushi Yoshioka
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Patent number: 7263723Abstract: The present invention provides a method and an apparatus that, when a copying is limited as “Copy One Generation”, prevent the copying from being made into infinite number of storage media without limitation, and thereby protect the profit of a copyright holder concerned. In the present invention, when outputting digital information whose copying is limited to external appliances connected to plural outputting circuits (315A, 315B, or 72A to 72D), the total number of external appliances to which the digital information is to be outputted is limited within a predetermined constant. In particular, a control circuit (311, or 73) limits the number in which to perform authentications of the external appliances connected to the plural outputting circuits. This makes it possible to limit, within the predetermined constant, the total number of the external appliances to which the digital information is to be outputted.Type: GrantFiled: April 3, 2003Date of Patent: August 28, 2007Assignee: Hitachi, Ltd.Inventors: Hiroo Okamoto, Hitoaki Owashi, Atsushi Yoshioka, Yoshimichi Kudo, Makoto Aikawa
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Publication number: 20070133812Abstract: The present invention identifies practical speaker connection using a device having a sound channel of a 5.1 channel or 7.1 channel, and provides the device that can easily reproduce the optimum multiple channels. The present invention can identify actual speaker arrangement by for example, measuring the impedance of a terminal at the side of an audio amplifier. If incorrect connection is found, a warning is issued. This information is transmitted to a signal source with an EDID and a signal with the optimum a number of sound channel is sent. The EDID is also used for the connection with a display unit and the speaker connection with which the display unit is provided uniquely. For example, a sound through the 7.1 channel is easily reproduced using the speaker of the display unit in the channel of the front speaker.Type: ApplicationFiled: February 6, 2007Publication date: June 14, 2007Applicant: Hitachi, Ltd.Inventors: Kazuhiko Yoshizawa, Nobuaki Kabuto, Atsushi Yoshioka
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Patent number: 7117710Abstract: A reverse input blocking clutch comprises, as main elements, an input member, an output member, a stationary member for constraining the revolutions, locking means, lock release means and torque transmission means. By forming the input member, the output member, the stationary member and a fixed side plate from metal plates such as press worked steel plates, a compact, lightweight and low cost reverse input blocking clutch is provided. Reverse input torque from the output member is locked in both the forward and reverse rotational directions relative to the stationary member, by rollers which function as the locking means. Input torque from the input member in both the forward and reverse rotational directions is transmitted to the output member via apertures 1d and protrusions which function as the torque transmission means.Type: GrantFiled: November 10, 2003Date of Patent: October 10, 2006Assignee: NTN CorporationInventors: Masahiro Kurita, Atsushi Yoshioka, Masahiro Kawai
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Publication number: 20060125959Abstract: A video processing device includes a control circuit for detecting a physical quantity related to a size of noise contained in the input video signal, and an OSD (On Screen Display) circuit for providing a user with a warning screen when the physical quantity detected by the control circuit is larger than a prescribed value, obtaining an appropriate video signal even when a digital video signal has poor quality.Type: ApplicationFiled: February 8, 2006Publication date: June 15, 2006Applicant: HITACHI, LTD.Inventors: Kazuhiko Yoshizawa, Nobuaki Kabuto, Atsushi Yoshioka
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Patent number: 7019791Abstract: A video processing device includes a control circuit for detecting a physical quantity related to a size of noise contained in the input video signal, and an OSD (On Screen Display) circuit for providing a user with a warning screen when the physical quantity detected by the control circuit is larger than a prescribed value, obtaining an appropriate video signal even when a digital video signal has poor quality.Type: GrantFiled: March 29, 2002Date of Patent: March 28, 2006Assignee: Hitachi, Ltd.Inventors: Kazuhiko Yoshizawa, Nobuaki Kabuto, Atsushi Yoshioka