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US 10,503,123 B2Granted
Analog electronic timepiece and hand drive control device
AssigneeCasio Computer Co., Ltd.
InventorKosuke Hasegawa
Life of this patent
Estimating the term…
Abstract
An analog electronic timepiece, including: a hand which is provided to be rotatable; and a processor which makes the hand perform at least one of an acceleration operation and a deceleration operation as a speed change operation when the hand is made to perform a fast forward movement, the acceleration operation being an operation of gradually increasing a fast forward speed of the hand from a stopped state when the fast forward movement is started, and the deceleration operation being an operation of gradually decreasing the fast forward speed until the hand comes into the stopped state when the fast forward movement is ended.
Claims16
An analog electronic timepiece, comprising:
- a hand which is provided to be rotatable;
- and
- a processor which makes the hand perform at least one of an acceleration operation and a deceleration operation as a speed change operation when the hand is made to perform a fast forward movement, the acceleration operation being an operation of gradually increasing a fast forward speed of the hand from a stopped state when the fast forward movement is started, and the deceleration operation being an operation of gradually decreasing the fast forward speed until the hand comes into the stopped state when the fast forward movement is ended;
- wherein, when a target movement amount of the hand in the fast forward movement is determined, the processor sets a speed change start movement amount and a speed change end movement amount in the fast forward movement for the target movement amount based on the target movement amount, the speed change start movement amount being a movement amount of the hand at a timing when the speed change operation is started, and the speed change end movement amount being a movement amount of the hand at a timing when the speed change operation is ended, and
- wherein, when the processor changes the fast forward speed between a predetermined number of two or more movement speeds in a stepwise manner in the speed change operation and makes the hand perform the fast forward movement at a predetermined interval, the processor sets the predetermined number and the movement speeds so that the fast forward movement is ended within an upper limit fast forward time which is less than the predetermined interval.
2 more elements
An analog electronic timepiece, comprising:
- a hand which is provided to be rotatable;
- a processor which makes the hand perform at least one of an acceleration operation and a deceleration operation as a speed change operation when the hand is made to perform a fast forward movement, the acceleration operation being an operation of gradually increasing a fast forward speed of the hand from a stopped state when the fast forward movement is started, and the deceleration operation being an operation of gradually decreasing the fast forward speed until the hand comes into the stopped state when the fast forward movement is ended;
- and
- a hand driver which makes the hand perform a step operation by a predetermined angle,
- wherein, when a target movement amount of the hand in the fast forward movement is determined, the processor sets a speed change start movement amount and a speed change end movement amount in the fast forward movement for the target movement amount based on the target movement amount, the speed change start movement amount being a movement amount of the hand at a timing when the speed change operation is started, and the speed change end movement amount being a movement amount of the hand at a timing when the speed change operation is ended, and
- wherein a lowest value among a predetermined number of two or more movement speeds in the speed change operation is determined based on at least one of the predetermined angle and a length of the hand.
3 more elements
A hand drive control device, comprising:
- a driver which rotates a hand;
- and
- a processor which makes the driver perform at least one of an acceleration operation and a deceleration operation as a speed change operation when the driver performs a fast forward movement of the hand, the acceleration operation being an operation of gradually increasing a fast forward speed of the hand from a stopped state when the fast forward movement is started, and the deceleration operation being an operation of gradually decreasing the fast forward speed until the hand comes into the stopped state when the fast forward movement is ended,
- wherein, when a target movement amount of the hand in the fast forward movement is determined, the processor sets a speed change start movement amount and a speed change end movement amount in the fast forward movement for the target movement amount based on the target movement amount, the speed change start movement amount being a movement amount of the hand at a timing when the speed change operation is started, and the speed change end movement amount being a movement amount of the hand at a timing when the speed change operation is ended, and
- wherein, when the processor changes the fast forward speed between a predetermined number of two or more movement speeds in a stepwise manner in the speed change operation and makes the driver perform the fast forward movement of the hand at a predetermined interval, the processor sets the predetermined number and the movement speeds so that the fast forward movement is ended within an upper limit fast forward time which is less than the predetermined interval.
2 more elements
A hand drive control device, comprising:
- a driver which rotates a hand;
- and
- a processor which makes the driver perform at least one of an acceleration operation and a deceleration operation as a speed change operation when the driver performs a fast forward movement of the hand, the acceleration operation being an operation of gradually increasing a fast forward speed of the hand from a stopped state when the fast forward movement is started, and the deceleration operation being an operation of gradually decreasing the fast forward speed until the hand comes into the stopped state when the fast forward movement is ended,
- wherein the driver makes the hand perform a step operation by a predetermined angle, and
- wherein a lowest value among a predetermined number of two or more movement speeds in the speed change operation is determined based on at least one of the predetermined angle and a length of the hand.
2 more elements
Dependencies are inferred from the claim text.