Invention Grant
- Patent Title: Pointer driving motor unit, electronic device, and control method of pointer driving motor unit
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Application No.: US15394049Application Date: 2016-12-29
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Publication No.: US09939785B2Publication Date: 2018-04-10
- Inventor: Kazuhiro Koyama
- Applicant: Seiko Instruments Inc.
- Applicant Address: JP Chiba
- Assignee: SEIKO INSTRUMENTS INC.
- Current Assignee: SEIKO INSTRUMENTS INC.
- Current Assignee Address: JP Chiba
- Agency: Brinks Gilson & Lione
- Priority: JP2016-000687 20160105; JP2016-205424 20161019
- Main IPC: G04C3/00
- IPC: G04C3/00 ; G04C3/14 ; G04B19/04

Abstract:
An object is to provide a pointer driving motor unit which can easily control driving of a pointer of a time piece by a stepping motor, a multifunctional electronic device, and a control method of a pointer driving motor unit. A pointer driving motor unit includes: a supporting body; a stepping motor which rotates a pointer that is supported to be rotatable with respect to the supporting body; a plurality of input portions which include a first input portion into which a first instruction signal is input from a main control portion, and a second input portion into which a second instruction signal is input from the main control portion; and a control portion which is provided in the supporting body, outputs a first driving signal that drives the pointer by a first operation to the stepping motor based on a result of comparing the first instruction signal and a predetermined threshold value with each other, and outputs a second driving signal that drives the pointer by a second operation to the stepping motor based on a result of comparing the second instruction signal and a predetermined threshold value with each other.
Public/Granted literature
- US20170192394A1 POINTER DRIVING MOTOR UNIT, ELECTRONIC DEVICE, AND CONTROL METHOD OF POINTER DRIVING MOTOR UNIT Public/Granted day:2017-07-06
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