Patents by Inventor Kenichi Morikawa
Kenichi Morikawa 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: 7889647Abstract: A switching apparatus includes an identification device for identifying received real-time packets; a measurement device for measuring a reception interval of the real-time packets according to the identification identified by the identification device; and an output device for giving priority to the real-time packets over other types of packets and outputting the real-time packet by priority based on the measurement measured by the measurement device.Type: GrantFiled: March 9, 2005Date of Patent: February 15, 2011Assignee: Canon Kabushiki KaishaInventors: Jun Kawashima, Kazuhiko Morimura, Kenichi Morikawa
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Publication number: 20100291545Abstract: The objection of the invention is to provide an antibody that inhibits infection with hepatitis C virus (HCV).Type: ApplicationFiled: July 25, 2008Publication date: November 18, 2010Inventors: Takaji Wakita, Tetsuro Suzuki, Kenichi Morikawa, Noriaki Omi, Noriko Nakamura, Daisuke Akazawa
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Publication number: 20100226622Abstract: When multi-frame rate contents including many high frame-rate portions are played back in a video player, a playback can be easily selected by showing to a user a playback time in respective playback modes of a normal playback and a slow playback. The video player includes a rate analysis unit for calculating playback time in the respective playback modes by analyzing a frame rate of multi-frame rate contents, and thumbnail images of multi-frame rate contents and playback time in the respective playback modes are listed and displayed as display units in a pair with respect to a plurality of contents.Type: ApplicationFiled: March 4, 2010Publication date: September 9, 2010Applicant: CANON KABUSHIKI KAISHAInventor: Kenichi Morikawa
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Patent number: 7724779Abstract: This invention provides a transmission system and control method capable of reliably transmitting real-time data. A switching device and router each serving as an intermediate device mediate an iso-data packet sent from each iso-data server to a predetermined terminal at a timing designated by an iso-packet from the iso-server. If a plurality of iso-data packets conflict in the transmission path, the switching device and router collectively continuously output the plurality of iso-data packets.Type: GrantFiled: March 23, 2006Date of Patent: May 25, 2010Assignee: Canon Kabushiki KaishaInventors: Kazuhiko Morimura, Kenichi Morikawa, Jun Kawashima
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Publication number: 20100119060Abstract: 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: ApplicationFiled: October 9, 2009Publication date: May 13, 2010Applicant: CANON KABUSHIKI KAISHAInventors: Ryuji Nishida, Yoshihiro Saga, Kenichi Morikawa, Kazuhiko Nakazawa
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Publication number: 20100034378Abstract: Provided is a broadcast receiving device including a determining unit configured to make a determination on a channel selected by a selecting unit as to whether the corresponding encryption key is available or unavailable, and a control unit configured to, when the determining unit determines that the encryption key is unavailable, allow the selecting unit to sequentially select channels displayed in a channel window, allow the determining unit to make the determination, and allow an output unit to generate and output the channel window so that the channel with the encryption key determined as unavailable is identified.Type: ApplicationFiled: August 6, 2009Publication date: February 11, 2010Applicant: CANON KABUSHIKI KAISHAInventor: Kenichi Morikawa
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Publication number: 20090310780Abstract: 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: ApplicationFiled: June 15, 2009Publication date: December 17, 2009Applicant: CANON KABUSHIKI KAISHAInventors: Ryuji Nishida, Yoshihiro Saga, Kenichi Morikawa, Kazuhiko Nakazawa
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Publication number: 20090310016Abstract: There is provided a video output apparatus which inputs a video content that can have at least three different resolutions. A format detector (112) detects an alteration of a resolution of a video content. A scaling processor (105) scales up the video content at a set scale ratio. Upon detection of an alteration of the resolution, the format detector (112) selects one of a plurality of supplemental video pictures, which are prepared in advance in a memory (113), in accordance with the degree of decrease of the resolution after the alteration to that before the alteration. An image composition unit (106) controls a display unit (110) to display the supplemental video picture together with a video associated with the video content via a video display unit (108). Even when the resolution decreases considerably, a decrease in user's convenience can be suppressed.Type: ApplicationFiled: August 8, 2007Publication date: December 17, 2009Applicant: CANON KABUSHIKI KAISHAInventors: Tetsu Fukuda, Hiroshi Uchiike, Kenichi Morikawa, Shuntaro Aratani
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Publication number: 20090160949Abstract: A video processing apparatus comprises a signal input unit which receives a video signal, a shift detection unit which detects a shift period in shooting and a maximum shift amount during the shift period from the video signal input from the signal input unit, an effective area detection unit which detects an object area common throughout the shift period as an effective area on the basis of the shift period and the maximum shift amount, a correction unit which corrects a shift during the shift period by reading out data from the effective area, and a resolution conversion unit which performs enlarge processing to convert a size of the effective area read out by the correction unit into an output image size.Type: ApplicationFiled: November 24, 2008Publication date: June 25, 2009Applicant: CANON KABUSHIKI KAISHAInventors: Eiichi Matsuzaki, Kenichi Morikawa
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Publication number: 20090109820Abstract: An optical disc drive according to the present invention can read data from any of multiple types of optical discs, of which the information storage layers are located at mutually different depths under their surface. When this drive is loaded with an optical disc, the servo controller of the drive changes a first type of drive signal to adjust a focus position by changing distances from the lens to the disc and/or a second type of drive signal to adjust tilt of the lens by changing the angles defined by the lens with respect to the disc a number of times, thereby changing settings to be determined by a combination of the focus position and the tilt. A signal quality rater measures multiple index values to rate the quality of a reflected light signal as the settings are changed. Then, the optical disc drive recognizes the type of the given optical disc based on those index values and reads data from the optical disc recognized.Type: ApplicationFiled: October 23, 2008Publication date: April 30, 2009Applicant: Panasonic CorporationInventors: Kenichi MORIKAWA, Hiroshige ISHIBASHI, Takahiro SATO, Yasuhiro TAI, Yoshiyuki HASHIMOTO
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Publication number: 20090068483Abstract: To provide an acid-modified polypropylene resin which can be used for an adhesive capable of bonding a polyolefin type resin and a polar resin with sufficient force, its production process and a resin composition using it. An acid-modified polypropylene resin, which is obtained by grafting an organic acid component to a polypropylene resin, wherein the polypropylene resin is an isotactic polypropylene resin, the grafted amount X (wt %) of the organic acid component in the acid-modified polypropylene resin is within a range of from 1.0 wt % to 20.0 wt %, and the melt flow rate Y (g/10 min) of the acid-modified polypropylene resin satisfies the expression: Y?18.5 exp(0.82X), a process for producing such an acid-modified polypropylene resin, a resin composition using it and a laminate.Type: ApplicationFiled: April 28, 2006Publication date: March 12, 2009Applicant: Mitsubishi Chemical CorporationInventors: Kenichi Morikawa, Katsutoshi Ohno
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Patent number: 7450506Abstract: Frames of different priority levels are queued in a plurality of queues, e.g., first priority queue, second priority queue and third priority queue. If it is judged that a lower priority frame can be completely transmitted by the timing of transmitting a higher-priority frame based on the frame length, the lower-priority frame is transmitted, and otherwise, the lower-priority frame is not transmitted. Accordingly, frame transmission control that is applicable to fixed-length frames and variable-length frames is realized in a frame scheduler for an apparatus having a function of outputting frames. Also, priority-based control of frames which is suitable for a layer 2 switch or the like and which is adaptable to processing in a high-speed network is realized without providing an IP fragment.Type: GrantFiled: March 3, 2005Date of Patent: November 11, 2008Assignee: Canon Kabushiki KaishaInventors: Kenichi Morikawa, Kazuhiko Morimura, Jun Kawashima
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Publication number: 20080247654Abstract: An image capturing apparatus determines an image frame to extract as a reference image frame from a plurality of image frames constituting a moving image, using a histogram, for example, and generates a reference image data file. An encoder unit encodes the plurality of image frames after reducing the resolution thereof, and generates an encoded moving image data file. A list associating the reference image frame with information specifying the corresponding reference image data file is generated with a content information list generating unit. The reference image data file, the encoded moving image data file and the list are then recorded.Type: ApplicationFiled: March 25, 2008Publication date: October 9, 2008Applicant: CANON KABUSHIKI KAISHAInventors: Kenichi Morikawa, Satoshi Kirihara, Shuntaro Aratani, Eiichi Matsuzaki
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Publication number: 20080199156Abstract: Conversion information regarding a method of frame-rate conversion executed in an image pickup apparatus is attached to video data, and the video data with the attached conversion information is passed to a playback apparatus. In the playback apparatus, an optimal image processing method is selected according to the conversion information.Type: ApplicationFiled: February 13, 2008Publication date: August 21, 2008Applicant: CANON KABUSHIKI KAISHAInventors: Hiroshi Uchiike, Hirofumi Urabe, Shuntaro Aratani, Kenichi Morikawa
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Publication number: 20080074444Abstract: An image control apparatus includes a signal-receiving unit to which image signals are input, a resolution detecting unit configured to detect the resolution of the input image signals, a viewing-distance detecting unit configured to detect a viewing distance between a viewer and a display apparatus, a display-size control unit configured to control a display size of images displayed in the display apparatus, a scaling unit, and an output unit configured to output the images scaled by the scaling unit to the display apparatus. When the resolution of images is changed, the scaling unit scales the image signals in accordance with the amount of change in resolution and the viewing distance, and outputs the signals to the display apparatus.Type: ApplicationFiled: September 14, 2007Publication date: March 27, 2008Applicant: CANON KABUSHIKI KAISHAInventors: Kenichi Morikawa, Tetsu Fukuda, Shuntaro Aratani
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Patent number: 7193247Abstract: A GaN compound semiconductor device can be capable of free process design and can have optimum device characteristics. The device can include a group III nitride compound semiconductor laminate structure including an n-type GaN compound semiconductor layer and a p-type GaN compound semiconductor layer. An n electrode can be formed on the n-type GaN compound semiconductor layer, and a p electrode can be formed on the p-type GaN compound semiconductor layer. The n electrode preferably includes an Al layer of 1 to 10 nm, in contact with the n-type GaN compound semiconductor layer, and any metal layer of Rh, Ir, Pt, and Pd formed on the Al layer. The p electrode can be made of a 200 nm or less layer of of Pd, Pt, Rh, Pt/Rh, Pt/Ag, Rh/Ag, Pd/Rh, or Pd/Ag, in contact with the p-type GaN compound semiconductor layer. Both electrodes can make ohmic contact with respective n-type/p-type GaN semiconductors without application of active annealing.Type: GrantFiled: March 9, 2006Date of Patent: March 20, 2007Assignee: Stanley Electric Co., Ltd.Inventors: Masahiko Tsuchiya, Naochika Horio, Kenichi Morikawa
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Publication number: 20060251129Abstract: This invention provides a transmission system and control method capable of reliably transmitting real-time data. A switching device and router each serving as an intermediate device mediate an iso-data packet sent from each iso-data server to a predetermined terminal at a timing designated by an iso-packet from the iso-server. If a plurality of iso-data packets conflict in the transmission path, the switching device and router collectively continuously output the plurality of iso-data packets.Type: ApplicationFiled: March 23, 2006Publication date: November 9, 2006Applicant: Canon Kabushiki KaishaInventors: Kazuhiko Morimura, Kenichi Morikawa, Jun Kawashima
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Publication number: 20060151802Abstract: A GaN compound semiconductor device can be capable of free process design and can have optimum device characteristics. The device can include a group III nitride compound semiconductor laminate structure including an n-type GaN compound semiconductor layer and a p-type GaN compound semiconductor layer. An n electrode can be formed on the n-type GaN compound semiconductor layer, and a p electrode can be formed on the p-type GaN compound semiconductor layer. The n electrode preferably includes an Al layer of 1 to 10 nm, in contact with the n-type GaN compound semiconductor layer, and any metal layer of Rh, Ir, Pt, and Pd formed on the Al layer. The p electrode can be made of a 200 nm or less layer of of Pd, Pt, Rh, Pt/Rh, Pt/Ag, Rh/Ag, Pd/Rh, or Pd/Ag, in contact with the p-type GaN compound semiconductor layer. Both electrodes can make ohmic contact with respective n-type/p-type GaN semiconductors without application of active annealing.Type: ApplicationFiled: March 9, 2006Publication date: July 13, 2006Inventors: Masahiko Tsuchiya, Naochika Horio, Kenichi Morikawa
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Patent number: 7049160Abstract: A GaN compound semiconductor device can be capable of free process design and can have optimum device characteristics. The device can include a group III nitride compound semiconductor laminate structure including an n-type GaN compound semiconductor layer and a p-type GaN compound semiconductor layer. An n electrode can be formed on the n-type GaN compound semiconductor layer, and a p electrode can be formed on the p-type GaN compound semiconductor layer. The n electrode preferably includes an Al layer of 1 to 10 nm, in contact with the n-type GaN compound semiconductor layer, and any metal layer of Rh, Ir, Pt, and Pd formed on the Al layer. The p electrode can be made of a 200 nm or less layer of of Pd, Pt, Rh, Pt/Rh, Pt/Ag, Rh/Ag, Pd/Rh, or Pd/Ag, in contact with the p-type GaN compound semiconductor layer. Both electrodes can make ohmic contact with respective n-type/p-type GaN semiconductors without application of active annealing.Type: GrantFiled: September 15, 2004Date of Patent: May 23, 2006Assignee: Stanley Electric Co., Ltd.Inventors: Masahiko Tsuchiya, Naochika Horio, Kenichi Morikawa
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Publication number: 20050232155Abstract: Frames of different priority levels are queued in a plurality of queues, e.g., first priority queue, second priority queue and third priority queue. If it is judged that a lower priority frame can be completely transmitted by the timing of transmitting a higher-priority frame based on the frame length, the lower-priority frame is transmitted, and otherwise, the lower-priority frame is not transmitted. Accordingly, frame transmission control that is applicable to fixed-length frames and variable-length frames is realized in a frame scheduler for an apparatus having a function of outputting frames. Also, priority-based control of frames which is suitable for a layer 2 switch or the like and which is adaptable to processing in a high-speed network is realized without providing an IP fragment.Type: ApplicationFiled: March 3, 2005Publication date: October 20, 2005Applicant: Canon Kabushiki KaishaInventors: Kenichi Morikawa, Kazuhiko Morimura, Jun Kawashima