Cordless device system
First Claim
1. A cordless instrumental system, in which a cordless instrument detachable from a charger is charged by attaching to said charger, comprising:
- a first storage part chargeable from a direct current source included in said charger;
a first charge and discharge control circuit to control charge and discharge of said first storage part;
a second storage part included in said cordless instrument; and
a second charge and discharge control circuit to control charge and discharge of said second storage part;
and is capable of charging at least from said first storage part to said second storage part upon attaching said cordless instrument.
1 Assignment
0 Petitions
Accused Products
Abstract
A cordless instrument (20, 40) detachable from a charger (10, 30, 31) is attached to the charger (10, 30, 31), and is charged. A first storage part (12, 33) chargeable from a direct current source (11, 32) included in the charger (10, 30, 31), a first charge and discharge control circuit (13, 50) to control charge and discharge of the first storage part (12, 33), a second storage part (21, 43) included in the cordless instrument (20, 40), and a second charge and discharge control circuit (22, 45) to control charge and discharge of the second storage part (21, 43) are provided. Further, a third storage part (28) chargeable from the direct current source (11, 32) may be provided. Also to the cordless instrument (20, 40), a fourth storage part (44) may be provided. Upon attaching the cordless instrument, the second storage part (21, 43) is charged at least from the first storage part (12, 33). In comparison with charging time to conventional secondary batteries, it is capable of rapid charge, long life use, resulting in such merits as to realize the compact size of a charger and low cost.
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Citations
20 Claims
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1. A cordless instrumental system, in which a cordless instrument detachable from a charger is charged by attaching to said charger, comprising:
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a first storage part chargeable from a direct current source included in said charger;
a first charge and discharge control circuit to control charge and discharge of said first storage part;
a second storage part included in said cordless instrument; and
a second charge and discharge control circuit to control charge and discharge of said second storage part;
and is capable of charging at least from said first storage part to said second storage part upon attaching said cordless instrument. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A cordless instrumental system in which a cordless instrument detachable from a charger is charged by attaching to said charger, comprising:
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a first storage part chargeable from a direct current source included in said charger;
a third storage part chargeable from the direct current source, and chargeable to said first storage part;
a first charge and discharge control circuit to control charge and discharge of said first and third storage parts;
a second storage part included in said cordless instrument; and
a second charge and discharge control circuit to control charge and discharge of said second storage part;
and is capable of charging at least from said first storage part to said second storage part upon attaching said cordless instrument. - View Dependent Claims (8, 9, 11, 12, 14)
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10. (canceled)
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13. (canceled)
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15. A cordless instrumental system, in which a cordless instrument detachable from a charger including a direct current source is attached to said charger and is charged, comprising:
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a first and the third storage parts chargeable from said direct current source, and provided in said charger;
a second and the fourth storage parts included in said cordless instrument;
a charge and discharge control circuit to control charge and discharge of said first to fourth storage parts; and
a discharge control circuit to control discharge of said second and fourth storage parts;
and is capable of charging at least from said first and third storage parts to said second storage part, as well as of charging from said third storage part to said fourth storage part, upon attaching said cordless instrument. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification