Title of Invention

"METHOD AND APPARATUS FOR INDICATION OF A CHARGING CONDITION"

Abstract An apparatus for indication of a charging condition, comprising: an indication circuit having at least one electromagnet and a charge control circuit for controlling charging current to a portable device wherein the indication circuit causes the apparatus to electromagnetically engage the portable device and the charge control circuit provides charging current to the portable device during the engagement and wherein the indication circuit causes the apparatus to electromagnetically decouple the portable device when the portable device is charged to a predetermined level to permit a user to remove the portable device from the apparatus.
Full Text METHOD AND APPARATUS FOR INDICATION OF A CHARGING CONDITION
ABSTRACT OF THE DISCLOSURE
The invention concerns an apparatus (100) for indication of a charging condition. The apparatus includes an indication circuit (126) having at least one electromagnet (120) and a charge control circuit (128) for controlling charging current to a portable device (110). The indication circuit causes the apparatus to efectromagnetically engage the portable device and the charge control circuit provides charging current to the portable device during the engagement. The indication circuit also causes the apparatus to electromagnetically decouple the portable device when the portable device is charged to a predetermined level to permit a user to remove the portable device from the apparatus.




We Claim:
1. An apparatus (100) for indication of a charging condition, comprising:
an indication circuit (126) having at least one electromagnet; and
a charge control circuit (128) for controlling charging current to a portable device;
wherein the indication circuit (126) causes the apparatus to electromagnetically engage the portable device (110) and the charge control circuit (128) provides charging current to the portable device during the engagement; and
wherein the indication circuit causes the apparatus to electromagnetically decouple the portable device when the portable device (110) is charged to a predetermined level to permit a user to remove the portable device from the apparatus.
2. The apparatus as claimed in claim 1, wherein the apparatus comprises at least one contact and wherein the apparatus contact electrically couples to a contact of the portable device when the apparatus electromagnetically engages the portable device.
3. The apparatus as claimed in claim 1, wherein the indication circuit provides an engaging current to the electromagnet and the engaging current causes the electromagnet to generate at least one of an attractive magnetic field and a repulsive magnetic field.
4. The apparatus as claimed in claim 3, wherein when the electromagnet generates an attractive magnetic field, the electromagnet attracts at least one of a non-magnetized metallic component of the portable device and an opposite pole magnet of the portable device.
5. The apparatus as claimed in claim 3, wherein when the electromagnet generates a repulsive magnetic field, the electromagnet repels a like pole magnet of the portable device.
6. The apparatus as claimed in claim 1, wherein the electromagnet generates a magnetic field when the apparatus electromagnetically engages the portable device and the magnetic field decreases in strength as the portable device is charged towards the predetermined level.
7. The apparatus as claimed in claim 1, wherein the electromagnet generates a magnetic field when the apparatus electromagnetically engages the portable device and the magnetic field remains at a substantially fixed level as the portable device is charged towards the predetermined level.
8. A method for indication of a charging condition, comprising the steps of:
electromagnetically engaging a portable device to a charging unit such that the portable device is magnetically urged towards and secured to at least a portion of the charging unit;
supplying charging current to the portable device; and
when the portable device is charged to a predetermined level, electromagnetically decoupling the portable device from the charging unit to permit a user to remove the portable device from the charging unit.
9. The method as claimed in claim 8, further comprising the steps of:
providing an engaging current to at least one electromagnet of the charging unit, wherein providing an engaging current step causes the electromagnet to generate at least one of an attractive magnetic field and a repulsive magnetic field.
10. The method as claimed in claim 8, wherein the charging unit has at least one
electromagnet and the method further comprises the steps of:
generating a magnetic field during the electromagnetically engaging step; and
decreasing the strength of the magnetic field as the portable device is charged towards the predetermined level.
11. The method as claimed in claim 8, wherein the charging unit has at least one
electromagnet and the method further comprises the steps of:
generating a magnetic field during the electromagnetically engaging step; and
keeping the strength of the magnetic field at a substantially constant level as the portable device is charged towards the predetermined level.
12. The method as claimed in claim 8, further comprising the steps of;
determining whether the portable device has been removed from the charging unit; and
in response to the portable device being removed from the charging unit, setting the charging unit to a predetermined charging configuration.

Documents:

5761-delnp-2006-Abstract-(15-03-2011).pdf

5761-delnp-2006-abstract.pdf

5761-DELNP-2006-Assignment-(21-12-2011).pdf

5761-delnp-2006-Claims-(15-03-2011).pdf

5761-delnp-2006-claims.pdf

5761-delnp-2006-Correspondence Others-(15-03-2011).pdf

5761-DELNP-2006-Correspondence Others-(16-11-2011).pdf

5761-DELNP-2006-Correspondence-Others-(08-03-2011).pdf

5761-DELNP-2006-Correspondence-Others-(21-12-2011).pdf

5761-delnp-2006-correspondence-others.pdf

5761-delnp-2006-decription (complete).pdf

5761-delnp-2006-Description (Complete)-(15-03-2011).pdf

5761-delnp-2006-Drawings-(15-03-2011).pdf

5761-delnp-2006-drawings.pdf

5761-delnp-2006-form-1.pdf

5761-delnp-2006-form-18.pdf

5761-delnp-2006-form-2.pdf

5761-delnp-2006-form-3.pdf

5761-delnp-2006-form-5.pdf

5761-delnp-2006-GPA-(15-03-2011).pdf

5761-DELNP-2006-GPA-(16-11-2011).pdf

5761-DELNP-2006-GPA-(21-12-2011).pdf

5761-delnp-2006-gpa.pdf

5761-delnp-2006-pct-304.pdf

5761-delnp-2006-pct-search report.pdf

5761-DELNP-2006-Petition-137-(16-11-2011).pdf


Patent Number 249863
Indian Patent Application Number 5761/DELNP/2006
PG Journal Number 46/2011
Publication Date 18-Nov-2011
Grant Date 17-Nov-2011
Date of Filing 04-Oct-2006
Name of Patentee MOTOROLA, INC
Applicant Address 1303 EAST ALGONGUIN ROAD, SCHAUMBURG, ILLINOIS 60196, UNITED STATES OF AMERICA,
Inventors:
# Inventor's Name Inventor's Address
1 STEPHEN O. BOZZONE 8331 N.W. 44TH COURT, LAUDERHILL, FLORIDA 33351, USA
2 JOSEPH PATINO 212 S.W. 179TH AVENUE, PEMBROKE PINES, FLORIDA 33029, USA
PCT International Classification Number H02J 7/04
PCT International Application Number PCT/US2005/011989
PCT International Filing date 2005-04-06
PCT Conventions:
# PCT Application Number Date of Convention Priority Country
1 10/820,920 2004-04-08 U.S.A.