System and Method for Aggregating Information to Determine a User's Location

• US 20070072626A1
• Filed: 11/15/2006
• Published: 03/29/2007
• Est. Priority Date: 01/31/2001
• Status: Abandoned Application

• Current Assignee: Terrace Licensing LLC (IP Edge LLC)
• Original Assignee: Terrace Licensing LLC (IP Edge LLC)
• Inventors: Krauszer, Adam, Paterson, Roy, Heifets, Abraham, White Eagle, Brian, Babu, Anand
• Application Number:
  US11/559,999
• Publication Number:
  US 20070072626A1
• Time in Patent Office: Days
• US Class Current: 455/456.100
• CPC Class Codes: H04L 67/52 specially adapted for the location of the user terminal
• CPC Class Codes: H04L 67/53 using third party service providers
• CPC Class Codes: H04L 69/329 in the application layer [OSI layer 7]
• CPC Class Codes: H04L 9/40 Network security protocols

Abstract

Provided is a system and method that acquires and aggregates information to determine the location of a user. Information from multiple sources is collected and evaluated. Location sources include mobile electronic devices such as mobile telephones, cell phones, hand-held computers, personal digital assistants, pagers, Global Positioning System (GPS) devices, and other pervasive computing devices. Satellite-based or network-based positioning technologies make ti possible to determine the geographic location of these wireless electronic devices and their coresponding user. Location sources also include computer-based models, schedules or calendars that gave a particular user'"'"'s expected location depending on the date and time. Provided is a method for aggregating information to determine a user'"'"'s location. Also provided is a system for executing the claimed method. Also provided is a service for providing the claimed method.

Claims

1. A method of controlling a power delivery system, comprising:

operating a system comprising a plurality of power cells that are electrically connected to a first transformer comprising one or more primary windings and a plurality of secondary windings such that each cell is electrically connected to one of the secondary windings and a plurality of the secondary windings are phase-shifted with respect to the primary windings, wherein each cell includes a plurality of switching devices; and

controlling the timing of activation of the switching devices within each cell so that an effective frequency of the activation for all of the cells as reflected to the primary is at least three times greater than the switching frequency of any individual cell.

2. The method of claim 1, wherein the controlling does not require the use of a synchronizing clock signal.

3. The method of claim 1, wherein the controlling comprises:

determining a carrier offset angle;

passing the carrier offset angle to the first power cell; and

synchronizing, by the first power cell, a carrier signal to the first secondary voltage based on the carrier offset angle.

4. The method of claim 3, further comprising, synchronizing, by each additional cell in the system, an additional carrier signal to a secondary voltage for each additional cell.

5. The method of claim 3, wherein the carrier signals for each cell are interdigitated so that they are distributed substantially evenly when reflected toward the primary windings of the source transformer.

6. The method of claim 3, wherein the carrier signal also controls the timing of implementation of commands that control the switching devices.

7. The method of claim 6, wherein the switching devices are part of an AC-to-DC converter portion of the cell.

8. The method of claim 6, wherein when a plurality of the cells determine that switching commands must be implemented, the carrier offset angle for each cell ensures that the commands are effectively interdigitated as reflected to the primary of the transformer.

9. The method of claim 8, wherein:

a command is implemented by the first power cell at a frequency substantially equal to a multiple of a fundamental frequency.

10. The method of claim 3, wherein the carrier offset angle represents a phase relationship between the carrier signal of the first cell and the first secondary voltage.

11. The method of claim 3, further comprising:

operating a second system comprising a second transformer and a second plurality of power cells, wherein;

the second transformer comprises one or more primary windings and a plurality of secondary windings;

the primary windings of the second transformer are electrically connected to the primary windings of the source transformer at a common point; and

each power cell in the second system generates a carrier signal;

wherein the carrier signals for each cell in the second system are interdigitated so that they are distributed substantially evenly when reflected toward the primary windings of the secondary transformer.

12. A method of operating a power delivery system, comprising:

operating a system comprising a plurality of power cells that are electrically connected to a first transformer comprising one or more primary windings and a plurality of secondary windings such that each cell is electrically connected to one of the secondary windings and a plurality of the secondary windings are phase-shifted with respect to the primary windings, wherein each cell includes a plurality of switching devices;

wherein a first secondary winding is electrically connected to deliver power to a first power cell;

determining a carrier offset angle;

passing the first carrier offset angle to the first power cell;

synchronizing, by the first power cell, a carrier signal to the first secondary voltage based on the first carrier offset angle; and

for a second cell that is connected to a second secondary winding of the source transformer, wherein the second secondary winding has a voltage that is phase-shifted with respect the voltage of the first secondary winding, synchronizing a second carrier signal to the second secondary voltage using a second carrier offset angle.

13. The method of claim 12, wherein the carrier signals for each cell that is electrically connected to the source transformer are interdigitated so that they are distributed substantially evenly when reflected toward the primary windings of the source transformer.

14. The method of claim 12, wherein:

the carrier signal for each cell also controls the timing of implementation of commands that control the switching devices; and

the synchronizing controls the timing of activation of the switching devices within each cell so that an effective frequency of the activation for all of the cells as reflected to the primary is at least three times greater than the switching frequency of any individual cell.

15. The method of claim 14, wherein the commands control switching devices that are part of an AC-to-DC converter portion of each cell.

16. The method of claim 14, wherein when a plurality of the cells determine that switching commands must be implemented, the commands are effectively interdigitated as reflected to the primary of the transformer.

17. The method of claim 14, wherein:

a command is implemented by the first power cell at a frequency substantially equal to a multiple of a fundamental frequency.

18. The method of claim 12, wherein the carrier offset angle represents a phase relationship between the carrier signal of the first cell and the first secondary voltage.

19. A method of operating a power delivery system, comprising:

operating a system comprising a plurality of power cells that are electrically connected to a multi-winding machine comprising one or more primary windings and a plurality of secondary windings such that each cell is electrically connected to one of the secondary windings and a plurality of the secondary windings are phase-shifted with respect to the primary windings;

determining, for each cell in a set of the power cells, a carrier offset angle;

synchronizing, by the each cell in the set, a carrier signal to the secondary voltage for the cell based on the carrier offset angle determined for the cell; and

wherein the carrier signal for each cell controls the timing of operation of switching devices within the cell.

20. The method of claim 19 wherein a switching frequency for all of the cells is at least three times greater than a switching frequency for any individual cell'"'"'s carrier signal.

21. A power delivery system, comprising:

a plurality of power cells that are electrically connected to a first transformer comprising one or more primary windings and a plurality of secondary windings such that each cell is electrically connected to one of the secondary windings and a plurality of the secondary windings are phase-shifted with respect to the primary windings; and

a plurality of switching devices included within each cell is timed, wherein timing of activation of the switching devices within each cell so that an effective frequency of the activation for all of the cells as reflected to the primary is at least three times greater than the switching frequency of any individual cell.

22. The system of claim 21, wherein a synchronizing clock signal is not required for activation of the switching devices.

23. The system of claim 21, wherein the effective frequency is determined by a carrier offset angle, passing the carrier offset angle to the first power cell, and synchronizing, by the first power cell, a carrier signal to the first secondary voltage based on the carrier offset angle.

24. The system of claim 21, wherein each cell includes a carrier signal interdigitated so that they are distributed substantially evenly when reflected toward the primary windings of the source transformer.