Application specific key buttons in a portable device

In a digital device, a method of emulating an application in the digital device, the method comprising the steps of:

• a) creating a command profile for the application;
• b) retrieving a key button profile for the digital device;
• c) comparing the command profile and the key button profile;
• d) creating an intermediary user interface based upon the comparison of the command profile and key button profile;
• e) displaying a user interface on the display of the digital device, the user interface divided into at least two display areas, the at least two display areas including a first display area and a second display area, the first display area including an application user interface, the second display area including the intermediary user interface;
• and
• f) displaying intermediary buttons on the intermediary user interface, the intermediary buttons displayed corresponding to the created intermediary user interface.

In a digital device, a method of emulating an application in the digital device, the method comprising the steps of:

• a) receiving content comprising the application to be emulated;
• b) determining if the received application comprises callbacks to specific input functions;
• i) if the received application does not comprise callbacks to specific input functions, displaying the received application without modification on the display;
• ii) if the received application does comprise callbacks to specific input functions, determining if the digital device comprises corresponding key buttons;
• 1) if the digital device comprises corresponding key buttons, displaying the received application without modification on the display of the digital device;
• and
• 2) if the digital device does not comprise corresponding key buttons, determining the capabilities of the digital device in order to display a number of commands corresponding to the received application.

In a digital device having a graphical user interface including a display and a user interface selection device, a method of providing and selecting commands of an emulated application, the method comprising the steps of:

• a) creating a command profile for the emulated application;
• b) retrieving a key button profile for the portable device;
• c) comparing the command profile and the key button profile;
• d) creating an intermediary user interface based upon the comparison of the command profile and key button profile;
• e) displaying a user interface on a display of the portable device, the user interface divided into at least two display areas, the at least two display areas including a first display area and a second display area, the first display area including an application user interface, the second display area including the intermediary user interface;
• and
• f) displaying intermediary buttons on the intermediary user interface, the intermediary buttons displayed corresponding to the created intermediary user interface.

A digital device terminal, comprising:

• a) a display;
• b) a memory, the memory storing computer executable instructions;
• c) a communication interface;
• and
• d) a processor for controlling operation of the digital terminal, the processor configured to perform the computer executable instructions stored in the memory, the computer executable instructions comprising:
• 1) receiving a digital broadcast transmission comprising an application to be emulated;
• 2) determining if the received application comprises callbacks to specific input functions;
• i) if the received application does not comprise callbacks to specific input functions, displaying the received application without modification on the display;
• ii) if the received application does comprise callbacks to specific input functions, determining if the portable device comprises corresponding key buttons;
• A) if the portable device comprises corresponding key buttons, displaying the received application without modification on the display of the portable device;
• and
• B) if the portable device does not comprise corresponding key buttons, determining the capabilities of the portable device in order to display a number of commands corresponding to the received application.