Patents by Inventor Setsuya Ohashi

Setsuya Ohashi 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: 6512748
    Abstract: A radio paging signal coding control scheme capable of improving the reception characteristic of the receiver by carrying out a coding control to determine logical channels for accommodating paging signals such that the transmission rate equivalently becomes as low as possible according to the paging signal traffic, without interrupting the paging signal coding processing while maintaining the combination of transmission rate and modulation scheme for frames, is disclosed. In the case of using prescribed transmission rate and N-valued modulation scheme, logical channels to be used for transmission of paging signals among a plurality of available logical channels are determined by setting priority orders among a plurality of available logical channels such that a number of states of modulated signals becomes less than N when paging signal traffic is small.
    Type: Grant
    Filed: January 28, 1999
    Date of Patent: January 28, 2003
    Assignee: NTT Mobile Communications Network Inc.
    Inventors: Takayuki Mizuki, Setsuya Ohashi, Yasushi Yamao, Shogo Ito
  • Patent number: 5777560
    Abstract: When a transmit station pages a pager which has the paging area of that transmit station as its local area, it pages using an address which is unique in that area. When a pager with another local area has moved into this paging area and is paged, it is paged using the area identification number of its local area and the address of its receiver. Each pager can therefore be paged in any given paging area without having to be given a separate address for each paging area.
    Type: Grant
    Filed: January 11, 1996
    Date of Patent: July 7, 1998
    Assignee: NTT Mobile Communications Network Inc.
    Inventors: Tsutomu Sakai, Setsuya Ohashi, Takayuki Mizuki