US 7,580,724 B2
Communication system, communication method, and program thereof
Yasuto Ueda, Tokyo (Japan)
Assigned to Office Misumi Co., Ltd., Miyagi (Japan)
Appl. No. 10/549,973
PCT Filed Mar. 19, 2004, PCT No. PCT/JP2004/003711
§ 371(c)(1), (2), (4) Date Sep. 20, 2005,
PCT Pub. No. WO2004/084080, PCT Pub. Date Sep. 30, 2004.
Claims priority of application No. 2003-077615 (JP), filed on Mar. 20, 2003; application No. 2003-125949 (JP), filed on Apr. 30, 2003; and application No. 2004-076066 (JP), filed on Mar. 17, 2004.
Prior Publication US 2006/0089168 A1, Apr. 27, 2006
Int. Cl. G06F 15/16 (2006.01)
U.S. Cl. 455—550.1  [370/329] 19 Claims
OG exemplary drawing
 
1. A communication system comprising:
an IC tag attached to an object;
a reader/writer provided with a function for communicating with the IC tag for a predetermined time;
a mobile information terminal for carrying the reader/writer;
wherein the mobile information terminal comprises the functions of:
a first alarm emission function for emitting a first alarm when communication with the reader/writer and the IC tag becomes impossible;
a second alarm emission function for emitting a second alarm when communication with the reader/writer and the IC tag becomes possible;
a position information acquisition function for acquiring a position information of the mobile information terminal when communication with the reader/writer and the IC tag becomes impossible; and
a display function for displaying the position information acquired by the position information acquisition function,
wherein said first alarm and said second alarm are different and are selected from the group of alarms consisting of sound, luminescence, vibration and screen information, or its combination, and wherein the setting change is arbitrarily possible from the mobile information terminal.