US 7,321,288 B2
Mobile terminal and security remote-control system and method using mobile terminal
Toru Nishimura, Tokyo (Japan)
Assigned to NEC Corporation, Tokyo (Japan)
Filed on Nov. 24, 2004, as Appl. No. 10/997,013.
Claims priority of application No. 2003-396221 (JP), filed on Nov. 26, 2003.
Prior Publication US 2005/0113080 A1, May 26, 2005
Int. Cl. H04Q 9/00 (2006.01); H04M 3/00 (2006.01)
U.S. Cl. 340—5.2  [340/5.7; 340/5.72; 340/5.73; 455/420] 13 Claims
OG exemplary drawing
 
1. A security remote-control system comprising:
a mobile terminal;
a central server connected to the mobile terminal so as to communicate with the mobile terminal; and
a key unit that is connected to the central server so as to communicate with the central server and that controls the state of a lock,
wherein the mobile terminal has a positional-information detecting unit capable of detecting its own position, and automatically transmits a first email for requesting notification of the state of the lock to the central server when the mobile terminal is outside a predetermined area including a specific position specified by a user, and
wherein the central server confirms the state of the lock through the key unit, when the central server receives the first email, and transmits to the mobile terminal a state notification email indicating the state of the lock.