Abstract: System and method for attaching a wireless headset to a portable device. The wireless headset may include a data receiver for receiving data from a portable device and a physical mechanism to attach to the portable device. The wireless headset may be detachable from the portable device, and after being detached, the headset may be usable for listening to audio data received from the portable device via the data receiver. The wireless headset may further include a data transmitter for providing data to the portable device. Additionally, the wireless headset may be operable to charge its battery when attached to the portable device. Furthermore, detaching the wireless headset may be used to answer a call if the portable device is capable of telecommunication services.

Abstract: A clock signal regeneration system and method to adjust the phase of a frequency-locked clock signal is provided. The system includes a numerically controlled oscillator, a clock source, and an adder. In one embodiment, additional components are included in the system to ensure that underflow or overflow of the numerically controlled oscillator is prevented. In another embodiment, additional components are included to ensure that output pulses from the numerically controlled oscillator do not occur within a minimum time interval. The method includes deriving a phase adjustment factor, adding the phase adjustment factor to a frequency control word, providing the modified frequency control word to a numerically controlled oscillator and generating a phase shifted, frequency-locked output signal.