Patents by Inventor Hiroyuki Kasai

Hiroyuki Kasai 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).

  • Publication number: 20060133586
    Abstract: A notification-purpose user state managing apparatus, a notification controlling apparatus, an information notification apparatus, an information notification system and an information notification method capable of reducing an unpleasant feeling and a burden and encouraging a user to recognize information are provided. The information notification system includes a notification-purpose user state managing apparatus including user's internal state assuming means for assuming a user's internal state based on an observable state element and user's notification utility assuming means for assuming utility to a user receiving information when information is notified based on the user's internal state; and a notification controlling apparatus including notification executing means for determining whether or not information is notified based on the utility and notifying information based on the determination.
    Type: Application
    Filed: December 7, 2005
    Publication date: June 22, 2006
    Applicant: NTT DoCoMo, Inc.
    Inventors: Hiroyuki Kasai, Shoji Kurakake, Kenichi Yamazaki, Norihiro Kawasaki
  • Publication number: 20060127087
    Abstract: An optical access network method, an optical access network and an optical switch for an optical access network, capable of solving all the three problems in the conventional GE-PON: transmission distance problem, security problem and communication interference problem. The optical access network comprises an OLT, a plurality of ONUs and one or more stages of optical switches, which are connected one another. In the direction from the OLT to the ONU, each frame (packet) transmitted from the OLT to one of the ONUs is checked so that only the destination ONU specified in the frame (packet) is connected to the OLT. In the direction from the ONU to the OLT, a control message transmitted from the OLT to one of the ONUs is checked so that only one ONU which has been given a transmission allowance from the OLT is connected to the OLT with respect to each frame (packet).
    Type: Application
    Filed: November 14, 2005
    Publication date: June 15, 2006
    Inventors: Hiroyuki Kasai, Toshinori Tsuboi, Hiromi Ueda, Takumi Nomura, Hirokazu Kobayashi, Kunitetsu Makino, Hiroyuki Endo
  • Publication number: 20050271140
    Abstract: Herein disclosed is a multiple-output bit stream separating apparatus for inputting an original MPEG-2 bit stream to separate into a plurality of transcoded MPEG-2 bit streams and a plurality of differential bit streams, and a multiple-output bit stream merging apparatus for inputting the transcoded MPEG-2 bit stream and the differential bit streams to reconstruct the original MPEG-2 bit stream. The bit rate of the transcoded MPEG-2 bit stream and the differential bit streams thus multiple times separated are much lower than that of the original MPEG-2 bit stream. This leads to the fact that the multiple-output bit stream separating apparatus and the multiple-input bit stream merging apparatus can promptly and reliably transmit and receive an original MPEG-2 bit stream having a large bit rate by transmitting and receiving a plurality of transcoded MPEG-2 bit streams and a plurality of differential bit streams in place of the original MPEG-2 bit stream.
    Type: Application
    Filed: May 23, 2005
    Publication date: December 8, 2005
    Inventors: Tsuyoshi Hanamura, Isao Nagayoshi, Hiroyuki Kasai, Hideyoshi Tominaga
  • Publication number: 20050265690
    Abstract: A timing decision apparatus includes: an adaptability decision unit configured to decide a correspondence between a feature quantity of media as encoded data capable of being replayed and an adaptability showing a degree of adaptation for providing a specific service; an adaptability storage unit configured to store the correspondence; and a timing decision unit configured to decide timing of providing the specific service in response to a value of the adaptability stored in the adaptability storage unit.
    Type: Application
    Filed: May 25, 2005
    Publication date: December 1, 2005
    Applicant: NTT DoCoMo, Inc.
    Inventors: Norihiro Kawasaki, Hiroyuki Kasai, Kenichi Yamazaki
  • Patent number: 6901109
    Abstract: Herein disclosed is a multiple-output bit stream separating apparatus for inputting an original MPEG-2 bit stream to separate into a plurality of transcoded MPEG-2 bit streams and a plurality of differential bit streams, and a multiple-output bit stream merging apparatus for inputting the transcoded MPEG-2 bit stream and the differential bit streams to reconstruct the original MPEG-2 bit stream. The bit rate of the transcoded MPEG-2 bit stream and the differential bit streams thus multiple times separated are much lower than that of the original MPEG-2 bit stream. This leads to the fact that the multiple-output bit stream separating apparatus and the multiple-input bit stream merging apparatus can promptly and reliably transmit and receive an original MPEG-2 bit stream having a large bit rate by transmitting and receiving a plurality of transcoded MPEG-2 bit streams and a plurality of differential bit streams in place of the original MPEG-2 bit stream.
    Type: Grant
    Filed: November 27, 2001
    Date of Patent: May 31, 2005
    Assignee: Media Glue Corporation
    Inventors: Tsuyoshi Hanamura, Isao Nagayoshi, Hiroyuki Kasai, Hideyoshi Tominaga
  • Patent number: 6895052
    Abstract: Herein disclosed a bit stream separating apparatus for inputting and transcoding an original MPEG-2 bit stream, and separating the transcoded MPEG-2 bit stream to generate a transcoded MPEG-2 bit stream and a differential bit stream, which is a differential bit stream between the original MPEG-2 bit stream and the transcoded MPEG-2 bit stream, and a bit stream merging apparatus for inputting and merging the transcoded MPEG-2 bit stream and the differential bit stream to reconstruct the original MPEG-2 bit stream. The bit stream separating apparatus makes it possible for the bit stream merging apparatus to reconstruct the original, high quality, MPEG-2 bit stream from the transcoded MPEG-2 bit stream already received and the differential bit stream, thereby eliminating the effort and time to send the original MPEG-2 bit stream again.
    Type: Grant
    Filed: August 17, 2001
    Date of Patent: May 17, 2005
    Inventors: Tsuyoshi Hanamura, Isao Nagayoshi, Hiroyuki Kasai, Hideyoshi Tominaga
  • Publication number: 20040054801
    Abstract: The suspended service recovery system is configured with a suspend-state analyzing module 14 to analyze a suspend-state and to extract required data to recover the suspend-state if a service being provided via a communication network 4 is suspended, a suspend-state representation module 12 to convert a result of the analysis to state-description data D2 according to a prescribed format, a storing device 3 to store the state-description data D2, a memory device 21 to memorize a recovery table which correlates each item of the state-description data D2 with a data type that can be processed on a client terminal 2, a state-description transforming module 24 to transform the state-description data D2 retrieved from the storing device 3 based on the recovery table, and a recovery-state generating module 25 to recover the suspended service.
    Type: Application
    Filed: September 2, 2003
    Publication date: March 18, 2004
    Applicant: NTT DoCoMo, Inc.
    Inventors: Norihiro Kawasaki, Hiroyuki Kasai, Yoko Kikuta, Kenichi Yamazaki
  • Patent number: 6654421
    Abstract: Herein disclosed is an apparatus for transcoding a coded multiplexed sound and moving picture sequence comprises the rate converter, which is operated to compress only the video bit streams, which have extremely large information volume.
    Type: Grant
    Filed: February 27, 2001
    Date of Patent: November 25, 2003
    Assignees: Media Glue Corporation
    Inventors: Tsuyoshi Hanamura, Seiji Ozaki, Satoshi Nishimura, Hiroyuki Kasai, Hideyoshi Tominaga
  • Patent number: 6587508
    Abstract: An apparatus for transcoding a coded moving picture sequence according to the present invention comprises a rate controller for adapting the scaling factor to perform the rate control over the coded moving picture sequence signal having a desired target bit rate.
    Type: Grant
    Filed: June 28, 2000
    Date of Patent: July 1, 2003
    Assignees: Media Glue Corporation
    Inventors: Tsuyoshi Hanamura, Hiroyuki Kasai, Satoshi Nishimura, Hideyoshi Tominaga
  • Publication number: 20020094025
    Abstract: Herein disclosed is a multiple-output bit stream separating apparatus for inputting an original MPEG-2 bit stream to separate into a plurality of transcoded MPEG-2 bit streams and a plurality of differential bit streams, and a multiple-output bit stream merging apparatus for inputting the transcoded MPEG-2 bit stream and the differential bit streams to reconstruct the original MPEG-2 bit stream. The bit rate of the transcoded MPEG-2 bit stream and the differential bit streams thus multiple times separated are much lower than that of the original MPEG-2 bit stream. This leads to the fact that the multiple-output bit stream separating apparatus and the multiple-input bit stream merging apparatus can promptly and reliably transmit and receive an original MPEG-2 bit stream having a large bit rate by transmitting and receiving a plurality of transcoded MPEG-2 bit streams and a plurality of differential bit streams in place of the original MPEG-2 bit stream.
    Type: Application
    Filed: November 27, 2001
    Publication date: July 18, 2002
    Inventors: Tsuyoshi Hanamura, Isao Nagayoshi, Hiroyuki Kasai, Hideyoshi Tominaga
  • Publication number: 20020054638
    Abstract: Herein disclosed a bit stream separating apparatus for inputting and transcoding an original MPEG-2 bit stream, and separating the transcoded MPEG-2 bit stream to generate a transcoded MPEG-2 bit stream and a differential bit stream, which is a differential bit stream between the original MPEG-2 bit stream and the transcoded MPEG-2 bit stream, and a bit stream merging apparatus for inputting and merging the transcoded MPEG-2 bit stream and the differential bit stream to reconstruct the original MPEG-2 bit stream. The bit stream separating apparatus makes it possible for the bit stream merging apparatus to reconstruct the original, high quality, MPEG-2 bit stream from the transcoded MPEG-2 bit stream already received and the differential bit stream, thereby eliminating the effort and time to send the original MPEG-2 bit stream again.
    Type: Application
    Filed: August 17, 2001
    Publication date: May 9, 2002
    Inventors: Tsuyoshi Hanamura, Isao Nagayoshi, Hiroyuki Kasai, Hideyoshi Tominaga
  • Publication number: 20010033619
    Abstract: Herein disclosed is an apparatus for transcoding a coded multiplexed sound and moving picture sequence comprises the rate converter, which is operated to compress only the video bit streams, which have extremely large information volume.
    Type: Application
    Filed: February 27, 2001
    Publication date: October 25, 2001
    Inventors: Tsuyoshi Hanamura, Seiji Ozaki, Hiroyuki Kasai, Satoshi Nishimura, Hideyoshi Tominaga
  • Patent number: 5388246
    Abstract: Before a memory access request is applied to a memory, a request receive signal is generated and applied to a controller. The controller retrieves information from a request information buffer having a limited memory space. The information is to be returned to a unit which has issued the request and is stored in a reply buffer. The transfer of the information into the reply buffers induces the acceptance of a new request before the completion of the actual access to the memory.
    Type: Grant
    Filed: October 18, 1993
    Date of Patent: February 7, 1995
    Assignee: NEC Corporation
    Inventor: Hiroyuki Kasai
  • Patent number: 5230046
    Abstract: In a computer system comprising first through K-th arithmetic processors connected to a control section (18) in an ascending order, where K represents a positive integer which is not less than two, a memorizing unit (20) memorizes first and second information. A clock controlling unit (21) detects a fault signal produced by a k-th arithmetic processor, where k represents one of 1 through K. When the memorizing unit memorizes the first information, the controlling unit controls a supplying unit (19) to put the k-th through the K-th arithmetic processors out of operation. When the memorizing unit memorizes the second information, the controlling unit controls the supplying unit to put the first through the K-th arithmetic processors out of operation even upon production of the fault signal by any one of the first through the K-th arithmetic processors.
    Type: Grant
    Filed: October 10, 1989
    Date of Patent: July 20, 1993
    Assignee: NEC Corporation
    Inventors: Jun Iwata, Hiroyuki Kasai