Abstract: An electronic device generates an access signal according to user input. The electronic device includes a processor, a key circuit to generate a key signal according to press of the user, a storage unit to store data, a clock generator circuit to generate a clock signal, and a protection circuit. The protection circuit generates an enable signal or a disable signal according to the key signal and the clock signal to control the storage unit to unlock or lock, and transmits the access signal to the storage unit to access the data.

Abstract: An electronic device generates an access signal according to user input. The electronic device includes a processor, a key circuit to generate a key signal according to press of the user, a storage unit to store data, a clock generator circuit to generate a clock signal, and a protection circuit. The protection circuit generates an enable signal or a disable signal according to the key signal and the clock signal to control the storage unit to unlock or lock, and transmits the access signal to the storage unit to access the data.

Abstract: A femtocell includes a memory, a transmitter, a receiver and a controller. The memory stores access probability values in different time periods, and a comparison table of power saving rates and probability thresholds. Each power saving rate is a proportion of the time periods whose access probability values are not more than a predetermining probability threshold and all time periods. The controller includes a setting module setting the predetermining probability threshold, a time module getting a current time and a corresponding current time period, a user identifying module determining whether the user accessing the femtocell through the receiver is a registered user, a switching module controlling the transmitter through determining whether the access probability value at the current time period is less than the predetermined probability threshold, a statistic module calculating the access probability value at the current time period according to the identifying result of the user identifying module.

Abstract: A femtocell includes a memory, a transmitter, a receiver and a controller. The memory stores access probability values in different time periods, and a comparison table of power saving rates and probability thresholds. Each power saving rate is a proportion of the time periods whose access probability values are not more than a predetermining probability threshold and all time periods. The controller includes a setting module setting the predetermining probability threshold, a time module getting a current time and a corresponding current time period, a user identifying module determining whether the user accessing the femtocell through the receiver is a registered user, a switching module controlling the transmitter through determining whether the access probability value at the current time period is less than the predetermined probability threshold, a statistic module calculating the access probability value at the current time period according to the identifying result of the user identifying module.

Abstract: A phone comprises a microphone, an audio processing unit, and a switch. The phone detects a working status of the phone, and receives user input. The phone controls the switch to connect the microphone or to disconnect the microphone from the audio processing unit according to the working status and the user input.