Temporary registration of devices

A method of temporarily registering a second device with a first device, wherein the first device comprises at least one of a projector and a display and the second device comprises an electronic device capable of wirelessly communicating data to the first device, said method comprising:

• in the first device,
• automatically generating a registration personal identification number (PIN) at least upon one of an emergence from one of a standby and an off state;
• displaying the generated registration PIN;
• receiving an indication from the second device that the generated registration PIN has been entered;
• determining whether the generated registration PIN is valid;
• and
• temporarily registering the second device with the first device in response to a determination that the generated registration PIN is valid;
• and
• following at least one of a termination of a network connection between the first device and the second device and a powering off of at least one of the first device and the second device:
• terminating the temporary registration;
• and
• at least one of the second device and the first device deleting information required for the temporary registration.

A non-transitory computer readable storage medium on which is embedded one or more computer programs, said one or more computer programs implementing a method of temporarily registering a second device with a first device, wherein the first device includes a temporary registration mode, said one or more computer programs comprising a set of instructions for:

• activating the temporary registration mode in the first device;
• initiating a temporary registration operation in the first device from the second device;
• determining whether the second device is authorized to register with the first device;
• and
• temporarily registering the second device with the first device in response to a determination that the second device is authorized to register with the first device, wherein the temporary registration requires that, following at least one of a termination of a network connection between the first device and the second device and a powering off of at least one of the first device and the second device, at least one of the second device and the first device terminate the temporary registration and delete information required for the temporary registration.