Identifying a seat position with infrared light

1. A method comprising:

providing a seating area with a plurality of seats including a first seat, and a plurality of radiation emitting devices respectively corresponding to the plurality of seats, the plurality of radiation emitting devices including a first radiation emitting device corresponding to the first seat;

receiving, by a server over a communications network and from first user through a first portable wireless device, a request to activate the first radiation emitting device;

responsive to the request, activating, by the server, the first radiation emitting device; and

responsive to passage of a predetermined interval after the activation of the first radiation emitting device, deactivating the first radiation emitting device;

wherein the plurality of radiation emitting devices are structured and/or programmed to emit infrared radiation.

2. The method of claim 1 wherein each radiation emitting device of the plurality of radiation emitting devices is mechanically connected to the respectively corresponding seat of the plurality of seats.

3. The method of claim 1 further comprising:

assigning, by the server, a machine readable identifier to the first user and also to the first seat;

wherein the request received from the first user includes the machine readable identifier.

4. The method of claim 3 further comprising:

assigning, by the server, a modulation pattern to the machine readable identifier;

wherein the activation of the first radiation emitting device activates the first radiation emitting device so that the first radiation emitting device emits modulated radiation according to the modulation pattern.

5. The method of claim 4 wherein the modulation pattern modulates an on/off status of the first radiation emitting device during the interval that the first radiation emitting device is activated.

6. The method of claim 1 wherein the communication network is a wireless local area network.

7. A system for use with a plurality of portable wireless devices and a seating area including a plurality of seats, with each seat of the plurality of seats being respectively assigned to a user of a plurality of users and with the plurality of wireless devices being respectively operated by at least some of the users of the plurality of users, the system comprising:

a server computer; and

a plurality of radiation emitting devices respectively located to respectively correspond to the plurality of seats;

wherein:

each of the plurality of radiation devices is structured to be in data communication with the server computer so that the server computer selectively controls emission of radiation by the plurality of radiation emitting devices;

the server computer is structured and programmed to receive, through a wireless communication network, requests from the plurality of portable wireless devices;

the server computer is further structured and programmed to, responsive to a request from a portable wireless device of the plurality of portable wireless devices, activate a radiation emitting device, of the plurality of radiation emitting devices, that corresponds to the seat corresponding to the portable wireless device corresponding to the user making the request; and

the server computer is further structured and programmed to, responsive to passage of a predetermined interval after the activation of a radiation emitting device, deactivate that radiation emitting device;

the plurality of radiation emitting devices are structured and/or programmed to emit infrared radiation.

8. The system of claim 7 wherein each radiation emitting device of the plurality of radiation emitting devices is mechanically connected to the respectively corresponding seat of the plurality of seats.

9. The system of claim 7 wherein:

the server computer is further structured and programmed to assign a plurality of machine readable identifiers, with each machine readable identifier respectively corresponding to a seat, of the plurality of seats, and also to the user assigned to that seat;

the server computer is further structured and/or programmed to communicate, to each portable wireless device, of the plurality of portable wireless devices, the machine readable identifier, of the plurality of machine readable identifiers, that corresponds to the user that operates the portable wireless device; and

each request received, by the server from a user, includes the machine readable identifier corresponding to the user who sent the request.

10. The system of claim 9 wherein:

the server computer is further structured and/or programmed to assign a modulation pattern to each machine readable identifier of the plurality of machine readable identifiers; and

the server computer is further structured and programmed to control an activated radiation emitting device to emit radiation in a manner that is modulated according to the modulation pattern corresponding to the machine readable identifier corresponding the seat corresponding the activated radiation emitting device.

11. The system of claim 10 wherein each modulation pattern modulates an on/off status of the corresponding activated radiation emitting device.

12. The system of claim 7 further comprising:

a wireless local area network (LAN); wherein

the wireless LAN is structured and programmed to transmit communications between the plurality of portable wireless devices and the server computer; and

the wireless LAN is further structured and programmed to transmit communications between the plurality of radiation emitting devices and the server computer.

13. A method for use with a seating area with a plurality of seats including a first seat, and a plurality of radiation emitting devices respectively corresponding to the plurality of seats, the plurality of radiation emitting devices including a first radiation emitting device corresponding to the first seat, the method comprising:

receiving, from a server and by a first portable wireless device including a camera and a display that displays images generated by the camera, a first machine readable identifier that correlates a first user associated with the first portable wireless device to the first seat of the plurality of seats;

sending, to the server over a communications network and by a first user through a first portable wireless device, a request including the first machine readable identifier to cause the server to activate the radiation emitting device for a limited interval; and

responsive to pointing the camera in a direction of the first seat during the limited interval, generating a series of time ordered images of a portion of the seating area on the display of the first portable wireless device, with at least some of the time ordered series of images showing the first radiation emitting device.

14. The method of claim 13 wherein:

the plurality of radiation emitting devices are structured and/or programmed to emit infrared radiation; and

the camera of the first portable wireless device is structured and programmed to show infrared radiation features in displays generated for the display of the first portable wireless device.

15. The method of claim 14 further comprising:

receiving, from the server and by the first portable wireless device, a modulation pattern to the machine readable identifier, with the modulation pattern being a pattern of modulation emitted by the first radiation emitting device under control of the server during the interval of activation of the first radiation emitting device;

detecting, by machine logic of the first wireless portable device, the modulation pattern in the series of images; and

overlaying a visual indication of the location first radiation emitting device in at least one image of the series of images.

16. The method of claim 15 wherein the modulation pattern modulates an on/off status of the first radiation emitting device during the interval that the first radiation emitting device is activated.

17. The method of claim 13 wherein the communication network is a wireless local area network.