RADIO COMMUNICATION SYSTEM

RADIO COMMUNICATION SYSTEM

PROBLEM TO BE SOLVED: To improve determination accuracy of inside and outside of an area in area limited radio using a magnetic field.SOLUTION: A mobile terminal device 1 compares Vrcv1 with Vth1 (S3) when the Vrcv1 and Vrcv2 are detected, and if Vrcv1≤Vth1 (S3: NO), it determines that "the mob...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: MORIMURA HIROKI, SASAKI AIICHIRO, OGASAWARA TAKAYUKI
Format: Patent
Sprache:eng
Schlagworte:
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TELEPHONIC COMMUNICATION
WIRELESS COMMUNICATIONS NETWORKS
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Beschreibung
Zusammenfassung:PROBLEM TO BE SOLVED: To improve determination accuracy of inside and outside of an area in area limited radio using a magnetic field.SOLUTION: A mobile terminal device 1 compares Vrcv1 with Vth1 (S3) when the Vrcv1 and Vrcv2 are detected, and if Vrcv1≤Vth1 (S3: NO), it determines that "the mobile terminal device 1 is outside of a radio communication area R1" and returns to a standby state (S1). If Vrcv1>Vth1 (S3: YES), the mobile terminal device 1 compares the Vrcv2 and Vth2 (S5), and if Vrcv2≥Vth2 (S3: NO), it determines that "the mobile terminal device 1 is outside of the radio communication area R1" and returns to the standby state (S1). If Vrcv2