An electronic device is provided. The electronic device includes a first display panel including a first clock generator and that generates a first signal according to the first clock generator in response to a screen update request signal, a second display panel including a second clock generator and that generates a second signal according to the second clock generator in response to a screen update request signal, and a controller that transmits the screen update request signal to the first display panel and the second display panel and that receives the first signal and the second signal and that compares the first signal and the second signal to adjust a clock of at least one of the first clock generator and the second clock generator.

Electronic device and method of updating screen of display panel thereof

A wireless cellular telephone with an audio codec for converting digital audio signals to analog audio signals The audio codec comprises two digital audio bus interfaces for coupling to respective digital audio buses, and a digital-only signal path between the two digital audio bus interfaces, such that no analog processing of the audio signals occurs in the digital-only signal path

Wireless cellular telephone with audio codec

An audio controlling unit 40 comprises an input to receive data from at least two software applications 20, 22, an output 41 for audio data, and a controller to control the audio output in response to the detection of an event 34 and according to a set of audio rules 42. One of the inputs could be from internet telephone or softphone software, more commonly known as VOIP. The rules which are used to control the output could be predetermined or they could be determined using dynamic system characteristics. An example operation of the control unit 40 would involve the detection of an incoming phone call whilst music is being played via speakers. The audio controlling unit 40 would then automatically mute the music and direct the call to an appropriate headset or earpiece, thereby intelligently switching the source of the audio output.

Personal audio management

A communication terminal according to one aspect of the present invention includes a baseband LSI that performs baseband processing for communication, an application LSI that includes a vocoder function and performs processing according to an application, an audio LSI that performs one of D/A conversion and A/D conversion on audio data, and a switch circuit that is installed in the application LSI and connects a data path between the audio processor LSI and the baseband LSI.

Semiconductor device, radio communication terminal using the same, and control method

In a dual processor mobile device one processor is a radio processor and one processor is an application processor, the mobile device further including a polyphonic audio chip, a method and apparatus for audio control, the method having the steps of: connecting the polyphonic audio chip between the controller and a highly integrated audio codec; connecting the radio processor to the highly integrated audio codec; controlling the highly integrated audio codec from the radio processor; and coordinating between the application processor and the radio processor to allow the radio processor to control the highly integrated audio codec through the radio processor

Tian Hongchang

Papers

Audio management in a dual processor environment