Patents by Inventor Yoshihiro Saga

Yoshihiro Saga 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: 11936036
    Abstract: A positive electrode active material in which a capacity decrease caused by charge and discharge cycles is suppressed is provided. Alternatively, a positive electrode active material having a crystal structure that is unlikely to be broken by repeated charging and discharging is provided. The positive electrode active material contains titanium, nickel, aluminum, magnesium, and fluorine, and includes a region where titanium is unevenly distributed, a region where nickel is unevenly distributed, and a region where magnesium is unevenly distributed in a projection on its surface. Aluminum is preferably unevenly distributed in a surface portion, not in the projection, of the positive electrode active material.
    Type: Grant
    Filed: November 19, 2020
    Date of Patent: March 19, 2024
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Yohei Momma, Hiroshi Kadoma, Yoshihiro Komatsu, Shiori Saga, Shunpei Yamazaki
  • Patent number: 9160973
    Abstract: Before a device key generation procedure is updated in response to execution of revocation, a recorded transport stream is decrypted using an unupdated device key and is stored in a memory unit after being re-encrypted. In this manner, broadcast programs that are recorded before the revocation can be viewed while maintaining a copyright protection function.
    Type: Grant
    Filed: June 15, 2009
    Date of Patent: October 13, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Ryuji Nishida, Yoshihiro Saga, Kenichi Morikawa, Kazuhiko Nakazawa
  • Patent number: 9036819
    Abstract: The present invention provides a broadcast receiving apparatus that receives a broadcast wave containing multiple channels. The apparatus comprises, among other things, a selecting unit that selects a channel from the broadcast wave; a determination unit that determines, for all channels that can be selected by the selecting unit, whether or not the obtaining unit can obtain an encrypted second-type encryption key that can be decrypted by the decrypting unit using the updated first-type encryption key; and an updating unit that updates the computer program stored in the memory to the updated program in the case where the determination unit has determined that the obtainment is possible for all the channels.
    Type: Grant
    Filed: July 8, 2009
    Date of Patent: May 19, 2015
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Yoshihiro Saga
  • Patent number: 8884843
    Abstract: An image display system is constituted by a server and a client apparatus. The server includes a storage unit that stores a plurality of illumination spectrum data after associating the data with values of adjustment parameters, an acquisition unit that acquires the present set value of an adjustment parameter of the client apparatus, a selection unit that selects, from among a plurality of illumination spectrum data stored in the storage unit, illumination spectrum data with a smallest difference between a value of the corresponding adjustment parameter and a value of the adjustment parameter acquired by the acquisition unit, a generation unit that generates image data representing appearance of an image pick-up object under illumination corresponding to the illumination spectrum data selected by the selection unit, and a delivery unit that delivers image data generated by the generation unit to the client apparatus.
    Type: Grant
    Filed: May 2, 2012
    Date of Patent: November 11, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventor: Yoshihiro Saga
  • Publication number: 20120287176
    Abstract: An image display system is constituted by a server and a client apparatus. The server includes a storage unit that stores a plurality of illumination spectrum data after associating the data with values of adjustment parameters, an acquisition unit that acquires the present set value of an adjustment parameter of the client apparatus, a selection unit that selects, from among a plurality of illumination spectrum data stored in the storage unit, illumination spectrum data with a smallest difference between a value of the corresponding adjustment parameter and a value of the adjustment parameter acquired by the acquisition unit, a generation unit that generates image data representing appearance of an image pick-up object under illumination corresponding to the illumination spectrum data selected by the selection unit, and a delivery unit that delivers image data generated by the generation unit to the client apparatus.
    Type: Application
    Filed: May 2, 2012
    Publication date: November 15, 2012
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Yoshihiro Saga
  • Patent number: 8272007
    Abstract: A broadcast receiving apparatus includes a generating unit generating a first encryption key specific to the broadcast receiving apparatus including identification information; a recording unit recording a broadcast stream that is included in a certain channel of broadcast signals and that includes an individual information stream and a content stream requiring a second encryption key for decryption, the individual information stream periodically including first individual information items and second individual information items; a searching unit searching for the earliest first individual information item and the earliest second individual information item from the individual information stream included in the broadcast stream; and an overwriting unit overwriting the found second individual information item at a position that is earlier than the position of the found second individual information item and that is later than the position of the found first individual information item in the individual inform
    Type: Grant
    Filed: August 7, 2009
    Date of Patent: September 18, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventor: Yoshihiro Saga
  • Patent number: 8265269
    Abstract: The present invention provides a receiving apparatus including a device key generating unit which generates a device key, a work key generating unit which generates a work key, a device key storing unit which sequentially stores the generated device key, every time the device key is updated, and a recording unit which stores a digital broadcast signal in a transport stream format, wherein in a case where the device key generating unit cannot generate, from the stored transport stream, a device key necessary for descrambling the stored transport stream when the stored transport stream is to be reproduced, the work key generating unit decrypts an encrypted work key that is obtained from the stored transport stream, using the device key stored in the device key storing unit, and generates a work key.
    Type: Grant
    Filed: October 9, 2009
    Date of Patent: September 11, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventors: Ryuji Nishida, Yoshihiro Saga, Kenichi Morikawa, Kazuhiko Nakazawa
  • Patent number: 8203649
    Abstract: An apparatus includes a memory which successively stores frame data of video data, an interpolating unit which generates interpolation frame data which is inserted between the frame data and stores the interpolation frame data in the memory, and a readout unit which successively reads out the frame data and the interpolation frame data from the memory at a frame rate higher than a frame rate of the video data. The apparatus further includes a generating unit which generates image data which is composited with the frame data and stores the image data in the memory, and a control unit which, based on display-related characteristics of the image data, controls the interpolating unit to halt the generation of the interpolation frame data, and also controls the readout unit to read out the frame data in duplicate instead of the interpolation frame data.
    Type: Grant
    Filed: March 7, 2008
    Date of Patent: June 19, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventor: Yoshihiro Saga
  • Patent number: 7810737
    Abstract: An information storage medium includes a recording unit to record externally input data, a first display unit, and a second display unit. Control is done to display information about the data recorded in the recording unit on the first display unit, and attribute information of the information storage medium on the second display unit.
    Type: Grant
    Filed: August 16, 2005
    Date of Patent: October 12, 2010
    Assignee: Canon Kabushiki Kaisha
    Inventor: Yoshihiro Saga
  • Publication number: 20100180290
    Abstract: A broadcast receiving apparatus includes a generating unit generating a first encryption key specific to the broadcast receiving apparatus including identification information; a recording unit recording a broadcast stream that is included in a certain channel of broadcast signals and that includes an individual information stream and a content stream requiring a second encryption key for decryption, the individual information stream periodically including first individual information items and second individual information items; a searching unit searching for the earliest first individual information item and the earliest second individual information item from the individual information stream included in the broadcast stream; and an overwriting unit overwriting the found second individual information item at a position that is earlier than the position of the found second individual information item and that is later than the position of the found first individual information item in the individual inform
    Type: Application
    Filed: August 7, 2009
    Publication date: July 15, 2010
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Yoshihiro Saga
  • Patent number: 7724291
    Abstract: An image input apparatus includes (a) a connection unit capable of connecting with a detachable storage medium; (b) a storage unit that stores a program for controlling the image input apparatus; (c) a bus communicably coupled with the storage unit and the connection unit; (d) a container unit adapted to contain the detachable storage medium; (e) a detecting unit adapted to detect whether a cover on the container unit is open; (f) a control unit configured to use the bus to access the detachable storage medium or the storage unit; and (g) a display unit that displays a message notifying a user that the cover is open, if the detecting unit detects that the cover is open. If the detecting unit detects that the cover is open, the control unit disables access from the control unit to the storage unit.
    Type: Grant
    Filed: October 26, 2004
    Date of Patent: May 25, 2010
    Assignee: Canon Kabushiki Kaisha
    Inventor: Yoshihiro Saga
  • Publication number: 20100119060
    Abstract: The present invention provides a receiving apparatus including a device key generating unit which generates a device key, a work key generating unit which generates a work key, a device key storing unit which sequentially stores the generated device key, every time the device key is updated, and a recording unit which stores a digital broadcast signal in a transport stream format, wherein in a case where the device key generating unit cannot generate, from the stored transport stream, a device key necessary for descrambling the stored transport stream when the stored transport stream is to be reproduced, the work key generating unit decrypts an encrypted work key that is obtained from the stored transport stream, using the device key stored in the device key storing unit, and generates a work key.
    Type: Application
    Filed: October 9, 2009
    Publication date: May 13, 2010
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Ryuji Nishida, Yoshihiro Saga, Kenichi Morikawa, Kazuhiko Nakazawa
  • Patent number: 7672580
    Abstract: An imaging apparatus automatically detects an object and displays information on a display device based on a comparison between detected data and memorized (stored) data. The imaging apparatus includes a detecting circuit and a memorizing circuit. The detecting circuit detects the object based on the image data produced from an output of an imaging element and calculates a feature value representing a feature of the detected object. The memorizing circuit memorizes the feature value calculated by the detecting circuit. A feature value calculated by the detecting circuit based on the image data displayed on the display device is compared with the feature value memorized in the memorizing circuit. The display device displays information relating to the comparison result.
    Type: Grant
    Filed: March 6, 2006
    Date of Patent: March 2, 2010
    Assignee: Canon Kabushiki Kaisha
    Inventor: Yoshihiro Saga
  • Publication number: 20100014667
    Abstract: The present invention provides a broadcast receiving apparatus that receives a broadcast wave containing multiple channels. The apparatus comprises, among other things, a selecting unit that selects a channel from the broadcast wave; a determination unit that determines, for all channels that can be selected by the selecting unit, whether or not the obtaining unit can obtain an encrypted second-type encryption key that can be decrypted by the decrypting unit using the updated first-type encryption key; and an updating unit that updates the computer program stored in the memory to the updated program in the case where the determination unit has determined that the obtainment is possible for all the channels.
    Type: Application
    Filed: July 8, 2009
    Publication date: January 21, 2010
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Yoshihiro Saga
  • Publication number: 20090310780
    Abstract: Before a device key generation procedure is updated in response to execution of revoke, a recorded transport stream is decrypted using an unupdated device key and is stored in a memory unit after being re-encrypted. In this manner, broadcast programs that are recorded before the revoke can be viewed while maintaining a copyright protection function.
    Type: Application
    Filed: June 15, 2009
    Publication date: December 17, 2009
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Ryuji Nishida, Yoshihiro Saga, Kenichi Morikawa, Kazuhiko Nakazawa
  • Publication number: 20080226197
    Abstract: An apparatus includes a memory which successively stores frame data of video data, an interpolating unit which generates interpolation frame data which is inserted between the frame data and stores the interpolation frame data in the memory, and a readout unit which successively reads out the frame data and the interpolation frame data from the memory at a frame rate higher than a frame rate of the video data. The apparatus further includes a generating unit which generates image data which is composited with the frame data and stores the image data in the memory, and a control unit which, based on display-related characteristics of the image data, controls the interpolating unit to halt the generation of the interpolation frame data, and also controls the readout unit to read out the frame data in duplicate instead of the interpolation frame data.
    Type: Application
    Filed: March 7, 2008
    Publication date: September 18, 2008
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Yoshihiro Saga
  • Patent number: 7198191
    Abstract: In writing image data having a first size in a memory card (4), a DMA circuit (12) transfers the image data to a memory card controller (6) until the write of the image data having the first size is ended. The memory card controller (6) checks that the state of the memory card is a predetermined state every time the write of image data having a second size smaller than the first size in the memory card (4) is ended and outputs a transfer end interrupt request signal to a CPU (2) in accordance with the end of the write of the image data having the first size in the memory card.
    Type: Grant
    Filed: August 27, 2004
    Date of Patent: April 3, 2007
    Assignee: Canon Kabushiki Kaisha
    Inventor: Yoshihiro Saga
  • Patent number: 7113208
    Abstract: An image capture apparatus having an image capture unit, a memory, an image compression unit, an image display unit, a control unit, a refresh control unit, and an arbitration unit adapted to assign a higher priority to a process of providing image data from the image capture unit to the memory than a process of refreshing the memory and a process of accessing the memory by the control unit, to assign a higher priority to a process of refreshing the memory and a process of accessing the memory by the control unit than to a process of compressing image data stored in the memory by the image compression unit, to assign a higher priority to a process of providing image data from the memory to the image display unit than a process of refreshing the memory and a process of accessing the memory by the control unit, and to assign a higher priority to a process of refreshing the memory than a process of accessing the memory by the control unit.
    Type: Grant
    Filed: February 22, 1999
    Date of Patent: September 26, 2006
    Assignee: Canon Kabushiki Kaisha
    Inventor: Yoshihiro Saga
  • Publication number: 20060210264
    Abstract: An imaging apparatus automatically detects an object and displays information on a display device based on a comparison between detected data and memorized (stored) data. The imaging apparatus includes a detecting circuit and a memorizing circuit. The detecting circuit detects the object based on the image data produced from an output of an imaging element and calculates a feature value representing a feature of the detected object. The memorizing circuit memorizes the feature value calculated by the detecting circuit. A feature value calculated by the detecting circuit based on the image data displayed on the display device is compared with the feature value memorized in the memorizing circuit. The display device displays information relating to the comparison result.
    Type: Application
    Filed: March 6, 2006
    Publication date: September 21, 2006
    Applicant: Canon Kabushiki Kaisha
    Inventor: Yoshihiro Saga
  • Publication number: 20060039688
    Abstract: An information storage medium includes a recording unit to record externally input data, a first display unit, and a second display unit. Control is done to display information about the data recorded in the recording unit on the first display unit, and attribute information of the information storage medium on the second display unit.
    Type: Application
    Filed: August 16, 2005
    Publication date: February 23, 2006
    Inventor: Yoshihiro Saga