Title:
ブロードキャストおよびローカルキャスト通信を行うためのシステムおよび装置
Document Type and Number:
Japanese Patent JP4319538
Kind Code:
B2
Abstract:
Described is a communication system including mobile communication devices. In the described system, the mobile devices may be wrist-worn watches such as are in common use today, except that the watches are specially configured to receive data in a "broadcast" mode and transmit and/or receive data in a "localcast" mode. The localcast mode includes the ability to transmit and receive data in a peer-to-peer fashion, allowing mobile devices to communicate directly with each other. The ability to combine two of these communication modes in a small, integrated and hence inexpensive and low-power package provides many advantages over existing personal communication device solutions.
Inventors:
Lawrence Jay Carr
William H. Mitchell
William H. Mitchell
Application Number:
JP2003511564A
Publication Date:
August 26, 2009
Filing Date:
July 03, 2002
Export Citation:
Assignee:
MICROSOFT CORPORATION
International Classes:
H04B7/26; H04W48/18; G04G21/02; G04G21/04; H04B1/38; H04H20/30; H04Q1/00; H04W4/06; H04W88/06
Domestic Patent References:
| JP61232731A | ||||
| JP2002530006A |
Foreign References:
| US5974034 | ||||
| EP1059742A1 |
Attorney, Agent or Firm:
Yoshikazu Tani
Kazuo Abe
Kazuo Abe