Patents by Inventor Ryuichi Sako

Ryuichi Sako 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: 6854037
    Abstract: A load on a CPU which controls the entire disk array device in an audio/video server which controls hard disk drives inside the disk array device is reduced. A recording/reproduction apparatus includes a plurality of recording/reproduction devices; a control device for issuing a command which instructs a recording/reproduction operation of each of the plurality of recording/reproduction devices and for setting information which specifies the enable/disable of an interrupt in such a manner as to correspond to each issued command; and a communication processing device for performing communication which transmits the command issued by the control device with each of the recording/reproduction devices and, after the communication for each command is terminated, for sending an interrupt indicating the termination of the communication to the control device under the condition in which the information which is set in such a manner as to correspond to the command specifies interrupt enable.
    Type: Grant
    Filed: April 23, 2002
    Date of Patent: February 8, 2005
    Assignee: Sony Corporation
    Inventor: Ryuichi Sako
  • Publication number: 20020161974
    Abstract: A load on a CPU which controls the entire disk array device in an audio/video server which controls hard disk drives inside the disk array device is reduced. A recording/reproduction apparatus includes a plurality of recording/reproduction devices; a control device for issuing a command which instructs a recording/reproduction operation of each of the plurality of recording/reproduction devices and for setting information which specifies the enable/disable of an interrupt in such a manner as to correspond to each issued command; and a communication processing device for performing communication which transmits the command issued by the control device with each of the recording/reproduction devices and, after the communication for each command is terminated, for sending an interrupt indicating the termination of the communication to the control device under the condition in which the information which is set in such a manner as to correspond to the command specifies interrupt enable.
    Type: Application
    Filed: April 23, 2002
    Publication date: October 31, 2002
    Inventor: Ryuichi Sako