Abstract:
An apparatus for data input. The apparatus comprises a sensing circuit for a plurality of keys, outputting an interruption signal and a corresponding group of data bits when one of the keys is pressed, a shift register circuit receiving a strobe signal, a clock signal and the group of data bits in parallel from the sensing circuit when the strobe signal is asserted, and serially outputting the group of data bits in synchronization with the clock signal, and a microcontroller receiving the interruption signal, outputting the strobe signal and clock signal when the interruption signal is asserted, and serially receiving the group of data bits from the shift register circuit to identify the key being pressed.
Abstract:
A method for power management of a smart phone. The method comprises steps of resetting the smart phone, searching for network service, operating the mobile phone system in standby mode and a PDA system in normal mode when connected to a network, switching the mobile phone system to connection mode when establishing communication with a remote terminal, switching the mobile phone system to sleep mode when the mobile phone system has been idle for a first time period, switching the PDA system to sleep mode when the PDA system has been idle for a second time period, and implementing power detection to switch the mobile phone and PDA system to off mode when the detected power is lower than a first and second threshold respectively.
Abstract:
A headset, a circuit structure of a mobile apparatus, and a mobile apparatus are provided. The headset includes at least one earphone, a microphone, an audio plug, and a headset cable. The audio plug includes a connector having a plurality of contacts. The microphone and the at least one earphone is coupled to the corresponding contacts of the audio plug through the headset cable. The headset cable includes a ground line, a microphone line, at least one audio line, and an antenna for receiving a television broadcasting signal. The antenna is coupled to one of the contacts coupled to the ground line, the microphone line, and the at least one audio line. The one of the contacts to which the antenna is coupled further serves as a radio frequency contact to provide the television broadcasting signal and an audio broadcasting signal.
Abstract:
A headset, a circuit structure of a mobile apparatus, and a mobile apparatus are provided. The headset includes at least one earphone, a microphone, an audio plug, and a headset cable. The audio plug includes a connector having a plurality of contacts. The microphone and the at least one earphone is coupled to the corresponding contacts of the audio plug through the headset cable. The headset cable includes a ground line, a microphone line, at least one audio line, and an antenna for receiving a television broadcasting signal. The antenna is coupled to one of the contacts coupled to the ground line, the microphone line, and the at least one audio line. The one of the contacts to which the antenna is coupled further serves as a radio frequency contact to provide the television broadcasting signal and an audio broadcasting signal.