Control interface for a communication device

摘要

A portable radio (100) having a control knob (102) can further enable additional radio control functions through a rapid back and forth bi-directional rotation (202, 204, 206) of the knob (102). No additional buttons or menu features are required.

主权项

1. A control interface for a portable radio, comprising:
a control knob coupled to the portable radio for enabling a primary radio control function of the portable radio; a controller for sensing speed and direction of the control knob, the controller enabling a secondary radio control function in response to detecting a bi-directional rotation of the control knob at a predetermined speed, and wherein the primary radio control function continues to be enabled while the secondary radio control function is enabled; and a single control switch operatively coupled to the control knob to control the primary radio control function, and the same single control switch for controlling the secondary radio control function.