PORTABLE TIME SYNCHRONIZATION SYSTEM

• US 20170215054A1
• Filed: 01/19/2017
• Published: 07/27/2017
• Est. Priority Date: 01/22/2016
• Status: Active Grant

• Current Assignee: Seiko Instruments Incorporated (Seiko Group)
• Original Assignee: Seiko Instruments Incorporated (Seiko Group)
• Inventors: TSUCHIYA, Tadashi
• Granted Patent: US 9,906,929 B2
• Time in Patent Office: Days
• CPC Class Codes: H04W 4/20 Services signaling; Auxiliary data signalling, i.e. transmitting data via a non-traffic channel
• CPC Class Codes: H04W 4/80 Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
• CPC Class Codes: H04W 56/0025 synchronizing potentially movable access points

Abstract

An electronic timepiece includes: a first time counter which clocks the time; a first timer which clocks a predetermined elapsed time period from the time of communication establishing processing with a portable electronic device; and a near field wireless communication portion which is capable of establishing communication in a case of synchronizing the time with the time of the portable electronic device. The portable electronic device includes a second time counter which clocks the time, a second timer which clocks the predetermined elapsed time period from the time of communication establishing processing with the electronic timepiece, and a near field wireless communication portion which is capable of establishing the communication in a case of synchronizing the time with the time of the timepiece, and sends time data which synchronizes the time of the first time counter with the time of the second time counter to a first communication portion in a case where the predetermined time period has elapsed in the second timer.

Claims

1. A portable time synchronization system which synchronizes time of a portable terminal and a timepiece, comprising:

the timepiece including a first time counter configured to clock the time, a first timer configured to clock a predetermined elapsed time period from the time of communication establishing processing with the portable terminal, and a first communication portion configured to be capable of establishing communication in a case of synchronizing the time with the time of the portable terminal;

the portable terminal including a second time counter configured to clock the time, a second timer configured to clock the predetermined elapsed time period from the time of communication establishing processing with the timepiece, and a second communication portion configured to be capable of establishing the communication in a case of synchronizing the time with the time of the timepiece, the second communication portion being configured to send time data which synchronizes the time of the first time counter with the time of the second time counter to the first communication portion in a case where the predetermined time period has elapsed in the second timer.

2. The portable time synchronization system according to claim 1,

where the predetermined elapsed time period is one day.

3. The portable time synchronization system according to claim 1,

where the first communication portion sends identification information of the timepiece in a case where the predetermined elapsed time period has elapsed in the first timer, and

where the second communication portion is placed in a time synchronizable state by scanning the identification information during a second predetermined elapsed time period which is shorter than the predetermined elapsed time period in a case where the predetermined elapsed time period has elapsed in the second timer.

4. The portable time synchronization system according to claim 2,

where the first communication portion sends identification information of the timepiece in a case where the predetermined elapsed time period has elapsed in the first timer, and

where the second communication portion is placed in a time synchronizable state by scanning the identification information during a second predetermined elapsed time period which is shorter than the predetermined elapsed time period in a case where the predetermined elapsed time period has elapsed in the second timer.

5. The portable time synchronization system according to claim 1,

where the timepiece configures a solar battery as a power source.