US5600225A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Noncontacting charging device
Assignee: NEC Corp
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Filing: 1995-06-20
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Granted: 1997-02-04
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Expires: 2015-06-20
Abstract
Abstract A non-contacting charging device is disclosed which performs charging in which electric power of a charger 1 is supplied without direct contact to a storage battery 210, and which includes in the charger 1 a primary coil 103 and circuits 104, 105 for supplying AC power to the primary coil, and also includes in the radio communication device having a storage battery 210, a secondary coil 212 that couples electromagnetically with the primary coil 103 and a circuit 211 for supplying the induced current power generated in the secondary coil to the storage battery as charging power. This device is provided with halt signal generating circuits 203, 209, and 214 for generating a halt signal that commands a halt of supply of AC power to the primary coil, and a halting circuit for halting supply of AC power to the primary coil in response to a halt signal, the halt signal generating circuit being provided in the radio communication device. If it is necessary to make or receive a call during charging of the radio communication device, a halt signal is generated on the radio communication device side to halt charging, thereby eliminating the attractive force caused by the electromagnetic induction in effect between the radio communication device and the charger, and allowing removal of the radio communication device from the charger with a minimum of effort.
Inventors
- 👤 Masataka Goto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:12
CPC Classifications
H; H02; H02J; H02J7/00; H02J7/40; H02J7/44; H02J50/00; H02J50/005; H02J50/10; H02J50/80; H02J7/485; H02J7/70; H02J7/731
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
155 words
A noncontacting charging device for supplying, in a noncontacting state, electrical power to a storage battery of a battery-equipped radio communication device, comprising: a charger having a primary coil and alternating current supply means for supplying alternating current power to said primary coil; a secondary coil that couples electromagnetically with said primary coil, and charging-power supply means for supplying, as charging power, electrical power of an induced current produced in said secondary coil to said storage battery; halt signal generating means for generating a halt signal in response to one of an incoming call and a manual input that commands a halt of the supply of alternating current power to said primary coil; and halting means for halting the supply of alternating current power to said primary coil in response to said halt signal; said secondary coil, said charging power supply means, and said halt signal generating means being provided in said radio communication device.
Claim 2
Dependent Claim
155 words
A noncontacting charging device for supplying, in a noncontacting state, electrical power to a storage battery of a battery-equipped radio communication device, comprising: a charger having a primary coil and alternating current supply means for supplying alternating current power to said primary coil; a secondary coil that couples electromagnetically with said primary coil, and charging-power supply means for supplying, as charging power, electrical power of an induced current produced in said secondary coil to said storage battery; halt signal generating means for generating a halt signal in response to one of an incoming call and a manual input that commands a halt of the supply of alternating current power to said primary coil; and halting means for halting the supply of alternating current power to said primary coil in response to said halt signal; said secondary coil, said charging power supply means, and said halt signal generating means being provided in said radio communication device.
Claim 3
Dependent Claim
101 words
A noncontacting charging device according to claim 1 wherein said halting means comprises: a first photoelectric converting means provided in said radio communication device for converting said halt signal to a light signal and supplying said light signal to said charger; and a second photoelectric converting means for receiving said light signal and converting said light signal to an electrical signal, and cut-off circuit means for cutting the path of power supply to said primary coil in response to output of said second photoelectric converting means, said second photoelectric converting means and said cut-off circuit means being provided in said charger.
Claim 4
Dependent Claim
31 words
A noncontacting charging device according to claim 1 wherein said halting means comprises a manually operated switch provided in the charger for cutting the power supply path to the primary coil.
Claim 5
Dependent Claim
196 words
A noncontacting charging device for supplying, in a noncontacting state, electrical power to a storage battery of a battery-equipped radio communication device, comprising: a charger having a primary coil and alternating current supply means for supplying alternating current power to said primary coil; a secondary coil that couples electromagnetically with said primary coil, and charging-power supply means for supplying, as charging power, electrical power of an induced current produced in said secondary coil to said storage battery; halt signal generating means for generating a halt signal that commands a halt of the supply of alternating current power to said primary coil; and halting means for halting the supply of alternating current power to said primary coil in response to said halt signal; wherein said halt signal generating means comprises at least one console key for commanding the halt of the supply of alternating current power to said primary coil, and a first halt signal generating circuit for producing said halt signal in response to a signal generated by a key input to said console key; said secondary coil, said charging power supply means, and said halt signal generating means being provided in said radio communication device.
Claim 6
Dependent Claim
196 words
A noncontacting charging device for supplying, in a noncontacting state, electrical power to a storage battery of a battery-equipped radio communication device, comprising: a charger having a primary coil and alternating current supply means for supplying alternating current power to said primary coil; a secondary coil that couples electromagnetically with said primary coil, and charging-power supply means for supplying, as charging power, electrical power of an induced current produced in said secondary coil to said storage battery; halt signal generating means for generating a halt signal that commands a halt of the supply of alternating current power to said primary coil; and halting means for halting the supply of alternating current power to said primary coil in response to said halt signal; wherein said halt signal generating means comprises at least one console key for commanding the halt of the supply of alternating current power to said primary coil, and a first halt signal generating circuit for producing said halt signal in response to a signal generated by a key input to said console key; said secondary coil, said charging power supply means, and said halt signal generating means being provided in said radio communication device.
Claim 7
Dependent Claim
101 words
A noncontacting charging device according to claim 4 wherein said halting means comprises: a first photoelectric converting means provided in said radio communication device for converting said halt signal to a light signal and supplying said light signal to said charger; and a second photoelectric converting means for receiving said light signal and converting said light signal to an electrical signal, and cut-off circuit means for cutting the path of power supply to said primary coil in response to output of said second photoelectric converting means, said second photoelectric converting means and said cut-off circuit means being provided in said charger.
Claim 8
Dependent Claim
171 words
A noncontacting charging device for supplying, in a noncontacting state, electrical power to a storage battery of a battery-equipped radio communication device, comprising: a charger having a primary coil and alternating current supply means for supplying alternating current power to said primary coil; a secondary coil that couples electromagnetically with said primary coil, and charging-power supply means for supplying, as charging power, electrical power of an induced current produced in said secondary coil to said storage battery; halt signal generating means for generating a halt signal that commands a halt of the supply of alternating current power to said primary coil; and halting means for halting the supply of alternating current power to said primary coil in response to said halt signal; wherein said halt signal generating means comprises a second halt signal generating circuit for detecting an incoming call to the radio communication device and producing said halt signal; said secondary coil, said charging power supply means, and said halt signal generating means being provided in said radio communication device.
Claim 9
Dependent Claim
171 words
A noncontacting charging device for supplying, in a noncontacting state, electrical power to a storage battery of a battery-equipped radio communication device, comprising: a charger having a primary coil and alternating current supply means for supplying alternating current power to said primary coil; a secondary coil that couples electromagnetically with said primary coil, and charging-power supply means for supplying, as charging power, electrical power of an induced current produced in said secondary coil to said storage battery; halt signal generating means for generating a halt signal that commands a halt of the supply of alternating current power to said primary coil; and halting means for halting the supply of alternating current power to said primary coil in response to said halt signal; wherein said halt signal generating means comprises a second halt signal generating circuit for detecting an incoming call to the radio communication device and producing said halt signal; said secondary coil, said charging power supply means, and said halt signal generating means being provided in said radio communication device.
Claim 10
Dependent Claim
101 words
A noncontacting charging device according to claim 6 wherein said halting means comprises: a first photoelectric converting means provided in said radio communication device for converting said halt signal to a light signal and supplying said light signal to said charger; and a second photoelectric converting means for receiving said light signal and converting said light signal to an electrical signal, and cut-off circuit means for cutting the path of power supply to said primary coil in response to output of said second photoelectric converting means, said second photoelectric converting means and said cut-off circuit means being provided in said charger.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-02-04 | 2000-08-05 | 2001-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-02-04 | 2004-08-05 | 2005-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-02-04 | 2008-08-05 | 2009-02-04 | $7700.00 | Window Closed / Lapsed |