Patent ID: 8155692

Claim:
A mobile communications device comprising: a main body having a top body surface that is opposite a bottom body surface, the main body defining an elongated channel having an opening through the bottom body surface, wherein the main body has a circular shape, and wherein the main body includes a first radio receiver and a first radio transmitter; a display screen incorporated into the top body surface; a keyboard tray physically connected to and electrically connected with the main body, wherein the keyboard tray has a top tray surface that is opposite a bottom tray surface, and wherein keyboard tray has a circular shape, and wherein the keyboard tray includes a second radio receiver and a second radio transmitter that communicatively couple the main body and the keyboard tray to each other through a wireless connection; a pin protruding from the top tray surface and engaged with the elongated channel in the bottom body surface, thereby connecting the keyboard tray to the main body such that the keyboard tray may slide from a first position at an end of the elongated channel near a center of the main body to a second position at an opposite end of the elongated channel near an edge of the main body, wherein the pin also allows the keyboard tray to rotate relative to the main body; a first keyboard incorporated into a first section of the top tray surface, wherein the first keyboard has a first orientation, and wherein the first keyboard includes a first plurality of keys; and a second keyboard incorporated into a second section of the top tray surface, wherein the second keyboard has a second orientation that is different than the first orientation, wherein the second keyboard includes a second plurality of keys some of which keys are different than keys in the first plurality of keys, and wherein the first section and the second section are on different sides of the pin; a sensor connected to one or more of the main body and the keyboard tray for detecting a current degree of rotation for the keyboard tray relative to the main body; and a keyboard controller coupled to the sensor and the top tray that activates and deactivates the first keyboard and the second keyboard based on the current degree of rotation for the keyboard tray relative to the main body.