Roaming control method for digital mobile telephone

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 6085087
SERIAL NO

08699443

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

A roaming control method for a digital mobile telephone is provided which is capable of entering a call reception state in a shortest time even if different carriers (providers) in the same frequency band are used for mobile telephone services. A roaming control method for a digital mobile telephone in a call reception control scheme at a home network and a roaming network, includes the steps of: activating a perch channel having a level of a reception radio wave larger than a predetermined level to receive broadcast information; judging whether a network number contained in the received broadcast information coincides with a home network number, and if not coincident; checking whether a roaming network number preloaded in the digital mobile telephone coincides with the network number contained in the received broadcast information, and if coincident; and receiving a call via the perch channel.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

  • KABUSHIKI KAISHA KENWOOD;RAKUTEN, INC.

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hori, Hiroyuki Machida, JP 19 345
Masuda, Takashi Yokohama, JP 193 1849
Serizawa, Gorou Kawasaki, JP 1 8

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation