System and method for authorizing use of a connection device coupled to a processing system

• US 7,584,501 B2
• Filed: 03/02/2004
• Issued: 09/01/2009
• Est. Priority Date: 03/02/2004
• Status: Expired due to Fees

• Current Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Original Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Inventors: Stancil, Charles J.
• Primary Examiner(s): Abrishamkar; Kaveh
• Application Number:
  US10/791,202
• Publication Number:
  US 20050198399A1
• Time in Patent Office: 2,009 Days
• Field of Search: None
• US Class Current: 726/4
• CPC Class Codes: G06F 1/266 Arrangements to supply power to external peripherals either directly from the computer or under computer control, e.g. supply of power through the communication port, computer controlled power-strips
• CPC Class Codes: H04L 63/102 Entity profiles

Abstract

Embodiments of a device authorization system authorize a connection device to be communicatively coupled to a processing system. One embodiment comprises a communication system interface configured to receive authorization from a network administrator device for a processing system to communicatively couple to a connection device; a card detector to detect the presence of the connection device when coupled to the processing system; and a card power switch configured to receive an authorization signal when the processing system is authorized to communicatively couple to the connection device, and configured to supply power to the connection device only when the authorization signal is present and when the card detector detects the presence of the connection device.

Claims

1. A computer comprising:

a network interface configured to receive via a network authorization from a remote network administrator device for the computer to use a modem card that facilitates connectivity between the computer and other devices;

a card slot configured to receive the modem card;

a card detector configured to detect the presence of the modem card when the modem card is inserted into the card slot; and

a card power switch configured to supply power to the modem card only when the authorization has been received and the card detector detects the presence of the modem card within the card slot.

2. The computer of claim 1, wherein the modem card connects to the computer with a Universal Serial Bus (USB) connection.

3. The computer of claim 1, wherein the modem card connects to the computer with a Peripheral Component Interconnect (PCI) Express connection.

4. The computer of claim 1, wherein the modem card connects to the computer with an Industry Standard Architecture (ISA) connection.

5. The computer of claim 1, further comprising:

a memory configured to store the authorization from the network administrator device; and

a processor configured to retrieve the authorization from the memory and communicate it to the card power switch.

6. The computer of claim 1, wherein the card slot is configured to receive two different types of modem cards.

7. The computer of claim 6, wherein the card power switch is configured to provide a first power to a first type of modem card and a second power to a second type of modem card, the first power being different than the second power.

8. The computer of claim 1, further comprising:

a signal generator configured to generate an authorization signal for the card power switch; and

a logical OR gate comprising;

a first input coupled to the signal generator,

a second input coupled to a connector configured to detect the presence of the modem card when inserted into the card slot, and

an output coupled to the card power switch such that the authorization signal is generated by the output of the logical OR gate only when the computer is authorized to use the modem card and when presence of the modem card is detected.

9. The computer of claim 1, further comprising a violation detector configured to detect presence of the modem card and communicate a violation signal to the network administrator device when the computer is not authorized to use the modem card.

10. A method for controlling use of a modem card, the method comprising:

a computer detecting presence of the modem card when the modem card has been inserted into a card slot of the computer;

the computer determining whether authorization has been received from a remote network administrator device for the computer to use the modem card;

the computer providing power to the modem card if the authorization has been received and not providing power to the modem card if the authorization has not been received.

11. The method of claim 10, further comprising the computer receiving the authorization from the remote network administrator device via a network.

12. The method of claim 10, further comprising:

the computer generating an authorization signal when the computer is authorized to use the modem card; and

the computer communicating the authorization signal to a card power switch of the computer such that the card power switch provides power to the modem card when the computer is authorized to use the modem card.

13. The method of claim 10, wherein providing power comprises providing power that is unique to power requirements of the modem card.

14. The method of claim 10, further comprising:

the computer detecting presence of a second type of modem card when inserted into the card slot;

the computer determining if the computer is authorized to use the second type of modem card;

the computer providing power to the second type of modem card if the computer is authorized to use the second type of modem card; and

the computer not providing power to the second type of modem card if the computer is not authorized to use the second type of modem card.

15. The method of claim 14, wherein providing power to the second type of modem card comprises providing power that is unique to power requirements of the second type of modem card.

16. The method of claim 10, further comprising:

the computer determining that the computer is not authorized to use the modem card;

the computer generating a violation signal in response to determining that the computer is not authorized; and

the computer communicating the violation signal to the remote network administrator device via a network.