Stylus charging case
First Claim
Patent Images
1. A charging case for a rechargeable stylus comprising:
- a charger body portion having a first and second end and including,a receptacle disposed at the first end and presenting a receiving face adapted to interface with a charging block of a stylus for magnetic association therewith, the stylus charging block being disposed at a first end of the stylus and presenting a plurality of ferromagnetic charging terminals;
a magnetic element fixed adjacent the receptacle opposite the receiving face and configured to magnetically secure the charger body portion relative to the charging block of the stylus;
circuitry coupled to a communications bus and operable to carry electrical signals therefrom;
a plurality of charging contacts in electrical communication with the circuitry and configured to associate with the plurality of ferromagnetic charging terminals, with each charging contact extending into the receptacle and operably contacting a respective charging terminal upon association of the charger body portion with the charging block of the stylus;
a plurality of LEDs being electrically connected to the circuitry and circumferentially disposed inside the charger body portion, the plurality of LEDs operable to simultaneously emit light for indicating a charge status of the stylus; and
a light diffusing ring radially interposed between the plurality of LEDs and exterior of the charger body portion, the light diffusing ring adapted to provide an illusion of a single light source when light is emitted from the plurality of LEDs.
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Abstract
Embodiments of the present invention relate to a portable charging case that can serve as both a charging base and a protective carrying case for a rechargeable stylus. The portable charging case can enable a quick connect and release of the stylus using magnetic force for magnetic engagement of the stylus to the charging base. The charging base may include a logic board that dynamically changes the polarity of the charge coming in through the charging base charging contacts. Such a dynamic change of polarity can recharge the stylus irrespective of the polarity alignment between the stylus charging terminals and the charging base charging contacts.
6 Citations
19 Claims
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1. A charging case for a rechargeable stylus comprising:
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a charger body portion having a first and second end and including, a receptacle disposed at the first end and presenting a receiving face adapted to interface with a charging block of a stylus for magnetic association therewith, the stylus charging block being disposed at a first end of the stylus and presenting a plurality of ferromagnetic charging terminals; a magnetic element fixed adjacent the receptacle opposite the receiving face and configured to magnetically secure the charger body portion relative to the charging block of the stylus; circuitry coupled to a communications bus and operable to carry electrical signals therefrom; a plurality of charging contacts in electrical communication with the circuitry and configured to associate with the plurality of ferromagnetic charging terminals, with each charging contact extending into the receptacle and operably contacting a respective charging terminal upon association of the charger body portion with the charging block of the stylus; a plurality of LEDs being electrically connected to the circuitry and circumferentially disposed inside the charger body portion, the plurality of LEDs operable to simultaneously emit light for indicating a charge status of the stylus; and a light diffusing ring radially interposed between the plurality of LEDs and exterior of the charger body portion, the light diffusing ring adapted to provide an illusion of a single light source when light is emitted from the plurality of LEDs. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A charging case for a rechargeable stylus comprising:
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a base assembly including, a well for magnetically receiving a charging block disposed at a first end of a stylus, the charging block presenting a plurality of charging terminals coupled to a rechargeable power source, a plurality of charging contacts configured to associate with the plurality of charging terminals, with each charging contact operably contacting a respective charging terminal upon association of the base assembly with the charging block of the stylus, a logic board operable to dynamically change a polarity configuration of each charging contact to match a polarity of the respective charging terminal upon sensing the polarity thereof, a charging interface electrically coupled to the charging contacts via the logic board, the charging interface configured for removable engagement of a power source adapter; a plurality of LEDs electrically coupled to the logic board and circumferentially disposed inside the base assembly, the plurality of LEDs operable to simultaneously emit light for indicating a charge status of the stylus, and a light diffusing ring radially interposed between the plurality of LEDs and exterior of the base assembly, the light diffusing ring adapted to provide an illusion of a single light source when light is emitted from the plurality of LEDs; and a cap assembly including an enclosure adapted to slidably engage a portion of the base assembly for removable coverage of the stylus. - View Dependent Claims (11, 12, 13, 14)
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15. A system comprising:
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an electronic stylus including, a rechargeable power source; a charging block disposed on a first end of the stylus, the charging block presenting a plurality of charging terminals coupled to the rechargeable power source; a base assembly including, a receptacle for magnetically receiving the stylus charging block; a plurality of charging contacts configured to associate with the plurality of charging terminals, with each charging contact operably contacting a respective charging terminal upon association of the base assembly with the stylus charging block; a charging interface electrically coupled to the charging contacts, the charging interface configured for removable engagement of a power source adapter, the power source adapter operable to send electrical charge to the power source for recharging; a plurality of LEDs circumferentially disposed inside the base assembly, the plurality of LEDs operable to simultaneously emit light for indicating a charge status of the stylus, and a light diffusing ring radially interposed between the plurality of LEDs and exterior of the base assembly, the light diffusing ring adapted to provide an illusion of a single light source when light is emitted from the plurality of LEDs; and a cap assembly including, an enclosure adapted to slidably engage a portion of the base assembly for removably encasing the stylus. - View Dependent Claims (16, 17, 18, 19)
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Specification