Patents by Inventor Hideaki Nagatsuma

Hideaki Nagatsuma 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: 6532432
    Abstract: To provide a portable GPS velocity/distance meter which may seek a suitable movement velocity by removing an affect of arm swing, save power consumption of a device, and to grip a movement condition of a carrier at a remote position, it is composed of a GPS signal receiving portion for measuring the movement velocity from a Doppler frequency, a microcomputer, an input section for setting a control condition or the like and calculation of various data including positional interval data of the GPS signal receiving section, a display section for displaying the movement velocity or the like and a transmit-receive section. Then, the microcomputer is provided with a control unit for controlling the GPS signal receiving section to intermittently perform the positional operation on the basis of the positional measurement interval and a velocity averaging unit for averaging the movement velocity.
    Type: Grant
    Filed: October 20, 1999
    Date of Patent: March 11, 2003
    Assignee: Seiko Instruments Inc.
    Inventors: Hideaki Nagatsuma, Kazumi Sakumoto, Hiroshi Odagiri
  • Patent number: 6449583
    Abstract: A measurement section for measuring a time and a period of time and outputting the measured data; a storing section for storing the measured data to be outputted from the measurement means and statistical data that is a statistical value or values obtained by sequentially processing and calculating the measured data; and a control section for setting a determination regarding whether or not the measured data to be outputted from the measurement section is stored in the storing section, and controlling the data storing operation so that the measured data is allowed to be stored in the storing section only when it has been determined to store the measured data, and calculating new statistical data to update the statistical data by employing the measured data and the statistical data stored in the storing section each time when the measured data is outputted from the measurement section.
    Type: Grant
    Filed: August 8, 2000
    Date of Patent: September 10, 2002
    Assignee: Seiko Instruments Inc.
    Inventors: Kazumi Sakumoto, Hiroshi Odagiri, Hideaki Nagatsuma
  • Publication number: 20020093787
    Abstract: To provide an arm wear type communication device for which the actual use form is taken into consideration. Arm holders each having no coating are provided as wear bodies in the both sides of a communication device body. Chip antennas each having a flat shape are respectively disposed in the arm holders. In this arm wear type communication device, when the communication device body is being worn to an arm, the chip antennas are respectively located on a radius side and a ulna side of an arm. Under this condition, the transmission and reception of the electric wave are carried out. When the communication device body is detached from an arm to be put to an ear to be used, the transmission and reception of the electric wave in which the grounding effect of the human body is avoided are carried out.
    Type: Application
    Filed: December 12, 2001
    Publication date: July 18, 2002
    Inventors: Takashi Ito, Hideaki Nagatsuma
  • Patent number: 6388613
    Abstract: A portable type distance/speed meter is designed for measuring a travel distance and a travel speed when a user walks, or runs, while realizing a correct average speed calculation in response to GPS electromagnetic waves receiving conditions.
    Type: Grant
    Filed: March 29, 2000
    Date of Patent: May 14, 2002
    Assignee: Seiko Instruments Inc.
    Inventors: Hideaki Nagatsuma, Kazumi Sakumoto, Hiroshi Odagiri
  • Publication number: 20020004704
    Abstract: A portable GPS receiving device having a storage medium which is portable by a user and small in data storage capacity such as a wrist watch type GPS receiving device, the portable GPS receiving device includes: a navigation information acquiring portion mounted on a vehicle for use, such as an in-vehicle navigation device, for acquiring any one of map information on the surroundings of the present place of the portable GPS receiving device, destination information, sightseeing information, store information, walking information and other navigation information from a navigation device whose data storage capacity is larger than that of the storage medium, to store the acquired data in the storage medium.
    Type: Application
    Filed: June 25, 2001
    Publication date: January 10, 2002
    Inventors: Hideaki Nagatsuma, Hiroshi Odagiri, Kazumi Sakumoto
  • Patent number: 6285314
    Abstract: A portable type distance/speed meter is designed for measuring a travel distance and a travel speed in response to GPS electromagnetic waves received by a GPS receiver.
    Type: Grant
    Filed: April 11, 2000
    Date of Patent: September 4, 2001
    Assignee: Seiko Instruments Inc.
    Inventors: Hideaki Nagatsuma, Kazumi Sakumoto, Hiroshi Odagiri