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Advance notification system, advance notification method, and mobile communication device

  • US 9,949,081 B2
  • Filed: 08/19/2016
  • Issued: 04/17/2018
  • Est. Priority Date: 02/21/2014
  • Status: Active Grant
First Claim
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1. An advance notification system comprising:

  • a first mobile device comprising a transmitter, at least one first processor, and a storage that stores a schedule including a scheduled time and a scheduled place, and a plurality of predetermined ranges including a first predetermined range and a second predetermined range located inboard with respect to the first predetermined range, with the center of the plurality of predetermined ranges being set at the scheduled place; and

    a second mobile device that acquires a device position of the second mobile device itself;

    wherein the at least one first processordetermines whether an advance notification is required on the basis of the device position with respect to the first predetermined range when a remaining time before the scheduled time becomes equal to a predetermined time, and determines whether the advance notification is required on the basis of the device position with respect to the second predetermined range when a fixed amount of time has elapsed since the remaining time before the scheduled time became equal to the predetermined time, andcause the transmitter to transmit the advance notification to the second mobile device when determining that the advance notification is required.

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