Method and/or system of scheduling transmission of a power signal

• US 20070038769A1
• Filed: 08/12/2005
• Published: 02/15/2007
• Est. Priority Date: 08/12/2005
• Status: Abandoned Application

• Current Assignee: D-Link Systems Incorporated (D-Link Corporation)
• Original Assignee: D-Link Systems Incorporated (D-Link Corporation)
• Inventors: Wang, Ah, Ryan, Todd
• Application Number:
  US11/203,605
• Publication Number:
  US 20070038769A1
• Time in Patent Office: Days
• US Class Current: 709/230
• CPC Class Codes: H04L 12/10 Current supply arrangements

Abstract

Described are a system and method for scheduling transmission of a power signal. A predetermined schedule may determine when selected data ports transmit a power signal to devices connected to the data ports.

Claims

1. An apparatus comprising:

one or more data ports capable of transmitting data and a power signal to one or more devices through a cable; and

logic to control transmission of said power signal to at least one of said devices according to a predetermined schedule.

3. The apparatus of claim 1, and further comprising logic to determine whether individual ones of said one or more devices comprise powered devices.

4. The apparatus of claim 1, wherein said predetermined schedule is capable of being modified in response to input data received according to an HTTP protocol.

5. The apparatus of claim 1, the apparatus comprising a plurality of said data ports and wherein said logic is capable of associating two or more of said data ports with a predetermined group of said data ports and capable of selectively scheduling transmission of said power signal to said data ports in said predetermined group according to a predetermined schedule associated with said group.

6. The apparatus of claim 1, wherein said apparatus further comprises one or more unpowered data ports connected to respective ones of said one or more data ports capable of transmitting data and a power signal.

7. The apparatus of claim 1, wherein said apparatus further comprises:

one or more unpowered data ports; and

a hub and/or switch connecting said unpowered data ports to said one or more data ports capable of transmitting data and a power signal.

8. The apparatus of claim 1, wherein said apparatus further comprises a real-time clock, and wherein said logic to control transmission of said power signal further comprises logic to compare said predetermined schedule with a state of said real-time clock.

9. The apparatus of claim 8, wherein said logic to control transmission of said power signal further comprises logic to determine whether said one or more devices are to receive said power signal based, at least in part, on said comparison of said predetermined schedule with said state of said real-time clock.

10. The apparatus of claim 8, wherein said apparatus further comprises logic to synchronize said real-time clock with a device coupled to said apparatus over a data transmission network according to a network time protocol.

11. The apparatus of claim 8, wherein said apparatus further comprises logic to synchronize said real-time clock according to information received according to an HTTP protocol.

12. The apparatus of claim 1, wherein said predetermined schedule defines a periodic weekly schedule defining one or more intervals during which at least one of said one or more devices is to receive said power signal.

13. The apparatus of claim 1, wherein said cable comprises an unshielded twisted pair cable.

14. The apparatus of claim 1, wherein said cable comprises substantially a category 5 cable.

2. The apparatus of claim 2, wherein said data ports comprise substantially Ethernet compatible data ports.

15. An article comprising:

a storage medium comprising machine-readable instructions stored thereon to;

control transmission of a power signal through one or more data ports connected to devices according to a predetermined schedule, said data ports being capable of transmitting data and said power signal to said devices.

16. Article of claim 15, wherein said data ports comprise substantially Ethernet compatible data ports.

17. The article of claim 15, wherein said storage medium further comprises machine readable instructions stored thereon to modify said predetermined schedule in response to input data received according to an HTTP protocol.

18. The article of claim 15, wherein said storage medium further comprises machine-readable instructions stored thereon to

associate two or more of said data ports with a group of said data ports;

and

selectively schedule transmission of said power signal to said data ports in said group according to a predetermined schedule associated with said group.

19. The article of claim 15, wherein said storage medium further comprises machine-readable instructions stored thereon to compare said predetermined schedule with a state of a real-time clock.

20. The article of claim 19, wherein said storage medium further comprises machine-readable instructions stored thereon to determine whether said one or more devices are to receive said power signal based, at least in part, on said comparison of said predetermined schedule with said state of said real-time clock.

21. The article of claim 19, wherein said storage medium further comprises machine-readable instructions stored thereon to synchronize said real-time clock with a device according to a network time protocol.

22. The article of claim 19, wherein said storage medium further comprises machine-readable instructions stored thereon to synchronize said real-time clock according to information received according to an HTTP protocol.

23. The article of claim 15, wherein said predetermined schedule defines a periodic weekly schedule defining one or more intervals during which at least one of said one or more devices is to receive said power signal.

24. A method comprising:

connecting one or more devices to one or more data ports; and

controlling transmission of a power signal through at least one of said one or more data ports to at least one of said one or more devices according to a predetermined schedule, said one or more data ports being capable of transmitting data and said power signal to said one or more devices.

25. The method of claim 24, wherein said connecting further comprises connecting one or more cables between said one or more devices and said one or more data ports, said one or more cables being capable of transmitting said data and said power signal simultaneously.

26. The method of claim 24, wherein said data ports comprise substantially Ethernet compatible data ports.

27. The method of claim 24, and further comprising determine whether individual ones of said one or more devices comprise powered devices.

28. The method of claim 24, and further comprising modifying said predetermined schedule in response to input data received according to an HTTP protocol.

29. The method of claim 24, wherein said one or more data ports comprises a plurality of data ports, and wherein said method further comprises:

associating two or more of said data ports with a predetermined group of said data ports; and

selectively scheduling transmission of said power signal to said data ports in said predetermined group according to a predetermined schedule associated with said group.

30. The method of claim 24, wherein said controlling transmission of said power signal further comprises comparing said predetermined schedule with a state of a real-time clock.

31. The method of claim 30, and further comprising determining whether said one or more devices are to receive said power signal based, at least in part, on said comparison of said predetermined schedule with said state of said real-time clock.

32. The method of claim 30, and further comprising synchronizing said real-time clock with a device over a data transmission network according to a network time protocol.

33. The method of claim 30, and further comprising synchronizing said real-time clock according to information received according to an HTTP protocol.

34. The method of claim 24, wherein said predetermined schedule defines a periodic weekly schedule defining one or more intervals during which at least one of said one or more devices is to receive said power signal.