Patents by Inventor Takeaki Minamisawa

Takeaki Minamisawa 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: 7346708
    Abstract: In an access point high-speed connecting method using presence service, when a wireless terminal for presence service moves into a service area of a wireless LAN or is powered, the terminal can be connected to an access point of the network at a high speed. When a presence subscription request is received from a first wireless terminal as a request source, a second wireless terminal registers a group ID and a user ID to a data storage. At connection to an access point, the second terminal determines the request source, i.e., a transmission destination according to information of access points to which a connection is already once established. The second terminal creates presence information including new network interface support information, i.e., an MAC address, a service set ID, and a group ID of the access point and transmits the presence information.
    Type: Grant
    Filed: May 19, 2004
    Date of Patent: March 18, 2008
    Assignee: NEC Corporation
    Inventor: Takeaki Minamisawa
  • Publication number: 20040249977
    Abstract: In an access point high-speed connecting method using presence service, when a wireless terminal for presence service moves into a service area of a wireless LAN or is powered, the terminal can be connected to an access point of the network at a high speed. When a presence subscription request is received from a first wireless terminal as a request source, a second wireless terminal registers a group ID and a user ID to a data storage. At connection to an access point, the second terminal determines the request source, i.e., a transmission destination according to information of access points to which a connection is already once established. The second terminal creates presence information including new network interface support information, i.e., an MAC address, a service set ID, and a group ID of the access point and transmits the presence information.
    Type: Application
    Filed: May 19, 2004
    Publication date: December 9, 2004
    Applicant: NEC CORPORATION
    Inventor: Takeaki Minamisawa
  • Patent number: 6026303
    Abstract: In a method of configuring an ad hoc network system including a plurality of wireless terminals, at least one of a plurality of wireless terminals of a network is selected as a current temporary parent wireless terminal, all of the plurality of wireless terminals other than the current temporary parent wireless terminal being set as child wireless terminals. Subsequently, a set of state determination data are collected from each of the child wireless terminals by the current temporary parent wireless terminal. The state determination data includes at least one of a wireless terminal state data of each of the child wireless terminals and a communication state data with each of the child wireless terminals. Then, it is determined whether the collecting operation is executed K cycles (K is a positive integer).
    Type: Grant
    Filed: November 6, 1997
    Date of Patent: February 15, 2000
    Assignee: NEC Corporation
    Inventor: Takeaki Minamisawa