Pairing remote controller to display device

1. An information presenting device comprising:

a memory to store data and to store a unique identifier of a remote control device; and

a communications component to read an identifier from the remote control device and to receive commands from the remote control device to present at least a portion of the data, wherein:

the information presenting device is to:

compare the read identifier and the stored unique identifier; and

unlock the information presenting device to present the at least a portion of the data in response to commands from the remote control device upon determining that the read identifier is a match to the stored unique identifier; and

the communications component is to receive the unique identifier from an administrative console.

2. The information presenting device of claim 1 , wherein the information presenting device is further to protect the stored unique identifier and to verify that the read identifier matches the unique identifier.

3. A system comprising:

the information presenting device of claim 1 ; and

the administrative console to authorize a user to store the unique identifier in the memory and to lock the information presenting device until the communications component reads the unique identifier from the remote control device.

4. The information presenting device of claim 1 , wherein the communications component is to read the identifier from the remote control device by a first mode of communications, the first mode comprising close-range communications, and to receive the commands from the remote control device to present the at least a portion of the data by a second mode of communications.

5. The information presenting device of claim 4 , wherein the close-range communications constitutes near-field communications.

6. The information presenting device of claim 4 , wherein the second mode of communications constitutes infrared communications.

7. The information presenting device of claim 4 , wherein the communications component is to receive the unique identifier from the administrative console by a third mode of communications, the third mode of communications constituting wireless communications.

8. A remote control device comprising:

a memory to store a unique identifier; and

a communications component to transmit the unique identifier to an information presenting device, to issue commands to the information presenting device for the presentation of information, and to transmit the unique identifier to the administrative console, wherein the information-presenting device is to receive a second identifier from an administrative console, to match the second identifier transmitted by the administrative console with the unique identifier transmitted by the remote control device, and to unlock itself for the presentation of information in case of a match.

9. The remote control device of claim 8 , wherein the unique identifier is signed.

10. A system comprising:

the remote control device of claim 8 ;

the administrative console to transmit the unique identifier to the information presenting device; and

the information presenting device.

11. The remote control device of claim 8 , wherein the memory is write-protected.

12. The remote control device of claim 8 , wherein the communications component is to transmit the unique identifier to the information presenting device by close-range communications and to issue the commands to the information presenting device for the presentation of information by a mode of communication other than close-range communications, the other mode of communication being longer-range than the close-range communications.

13. A method comprising:

storing a unique identifier in a remote control device;

registering the unique identifier with an information presenting device;

authorizing the remote control device to command the presentation of information from the information presenting device, the authorizing including communicating between the remote control device and the information presenting device and the authorizing including the remote control device communicating the stored unique identifier to the information presenting device and the information presenting device matching the communicated unique identifier to the registered unique identifier;

unlocking the information presenting device to present information in response to the authorizing;

after the unlocking, transmitting commands to present information from the remote control device to the information presenting device by a second mode of communications; and

presenting information by the information presenting device in response to the commands, wherein the registering comprises:

the remote control device transmitting the unique identifier to an administrative console; and

the administrative console writing the unique identifier to the information ion presenting device.

14. The method of claim 13 , wherein:

the administrative console is password protected; and

the writing comprises gaining access to the administrative console by means of a password.

15. The method of claim 13 , wherein the authorizing comprises verifying a signature of the unique identifier.

16. The method of claim 13 , wherein the storing comprises:

signing the unique identifier; and

storing the unique identifier in a write-protected memory of the remote control device.

17. The method of claim 13 , further comprising locking the information presenting device from the presentation of information until the authorization of the remote control device.

18. The method of claim 17 , further comprising relocking the information presenting device after a completion of a session of presenting information in response to the commands from the remote control device.

19. The method of claim 13 , wherein:

the authorizing includes communicating between the remote control device and the information presenting device by a first mode of communications while the remote control device and the information presenting device are proximate; and

the transmitting commands to present information includes transmitting commands to present information from the remote control device to the information presenting device by a second mode of communications.

20. The method of claim 19 , wherein:

the information presenting device is a projector;

the remote control device is a remote control device for the projector;

the first mode of communications is near-field communications; and

the second mode of communications is infrared.