Patents by Inventor Hideyuki Tagai

Hideyuki Tagai 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: 9184856
    Abstract: Wireless noise is detected within a time period specifically held after a data packet is wirelessly communicated, where no data is purposefully wirelessly communicated during this time period. The time period may be an inter-frame space (IFS) period within which no data is to be wirelessly communicated, and that is a period waited for prior to accessing a wireless medium over which data is wirelessly communicated. One or more actions are performed to counteract the noise. The frequency at which a liquid crystal display is being driven may be decreased so that harmonics caused thereby that caused the noise are no longer within the wireless communication frequency range. An opposite-in-phase version of the noise may also or alternatively be combined with a signal when data is subsequently wirelessly received. The signal includes a data component and a noise component, the opposite-in-phase version of the noise canceling out the noise component.
    Type: Grant
    Filed: January 26, 2005
    Date of Patent: November 10, 2015
    Assignee: Lenovo Enterprise Solutions (Singapore) PTE. LTD.
    Inventors: Hideyuki Usui, Hideyuki Tagai, Osamu Yamamoto, Kohji Inoue, Kazuo Fujii, Kohhei Shibata
  • Publication number: 20060166622
    Abstract: Wireless noise is detected within a time period specifically held after a data packet is wirelessly communicated, where no data is purposefully wirelessly communicated during this time period. The time period may be an inter-frame space (IFS) period within which no data is to be wirelessly communicated, and that is a period waited for prior to accessing a wireless medium over which data is wirelessly communicated. One or more actions are performed to counteract the noise. The frequency at which a liquid crystal display is being driven may be decreased so that harmonics caused thereby that caused the noise are no longer within the wireless communication frequency range. An opposite-in-phase version of the noise may also or alternatively be combined with a signal when data is subsequently wirelessly received. The signal includes a data component and a noise component, the opposite-in-phase version of the noise canceling out the noise component.
    Type: Application
    Filed: January 26, 2005
    Publication date: July 27, 2006
    Inventors: Hideyuki Usui, Hideyuki Tagai, Osamu Yamamoto, Kohji Inoue, Kazuo Fujii, Kohhei Shibata
  • Patent number: 5812821
    Abstract: Disclosed is a data processing apparatus that has two or more internal SCSI devices, to include a SCSI controller, that can also accommodate eternal SCSI devices via a port connector and that can manage the ID numbers (identification numbers) of the internal SCSI devices separately from all the other SCSI devices without requiring any action by a user; and a method for controlling such a data processing apparatus. According to the present invention, ID numbers can be written into internal SCSI devices. ID numbers that do not collide with the ID numbers of the externally connected SCSI devices are assigned to the respective internal SCSI devices. The system can automatically write the ID numbers during the booting process or when the system configuration is physically changed. Even when there are SCSI hard disk drives installed both inside and outside the system, the ID numbers of the SCSI hard disk drives that are internally positioned can be read so that the internal SCSI hard disk drives can be designated.
    Type: Grant
    Filed: September 28, 1995
    Date of Patent: September 22, 1998
    Assignee: International Business Machines Corporation
    Inventors: Haruo Sugi, Susumu Shimotono, Hideyuki Tagai, Mayumi Takahashi, Naoki Harada