Sleep (system call)

About: Sleep (system call) is a research topic. Over the lifetime, 2633 publications have been published within this topic receiving 27806 citations. The topic is also known as: Sleep() & sleep().

Enhanced system sleep state support in servers using non-volatile random access memory

Abstract: A non-volatile random access memory (NVRAM) is used in a computer system to enhance support to sleep states. The computer system includes a processor, a non-volatile random access memory (NVRAM) that is byte-rewritable and byte-erasable, and power management (PM) module. A dynamic random access memory (DRAM) provides a portion of system address space. The PM module intercepts a request initiated by an operating system for entry into a sleep state, copies data from the DRAM to the NVRAM, maps the portion of the system address space from the DRAM to the NVRAM, and turns off the DRAM when transitioning into the sleep state. Upon occurrence of a wake event, the PM module returns control to the operating system such that the computer system resumes working state operations without the operating system knowing that the portion of the system address space has been mapped to the NVRAM.

Mobile device sleep monitoring using environmental sound

Abstract: A sleep monitoring application is installed on a mobile device. The mobile device is placed in a location when a user sleeps and records environmental sound. The sleep monitoring application determines indicators of sleep activity such as breathing sounds made by the user, and determines a sleep state of the user based on the indicators of sleep activity. Sleep disorders can be detected from the indicators of sleep activity. The sleep monitoring application may generate a report that summarizes the user's sleep states and alerts the user to any sleep disorders. The sleep monitoring application can use the environmental sound and the determined sleep states to determine ambient sound that is associated with good sleep. Later, if the sleep application determines the user is having problems sleeping, the sleep monitoring application can play the determined ambient sound to help the user sleep.

Sleep analysis system and method for analyzing sleep thereof

Abstract: The invention provides a sleep analysis system and a method for analysis thereof. The sleep analysis system includes an analysis device and a sleep sensing apparatus. The sleep sensing apparatus includes an ECG signal collector, a multi-axial accelerometer, a wireless transmitting unit, and a control unit. The ECG signal collector is used for collecting an ECG signal associated with a subject. The multi-axial accelerometer is used for detecting a multi-axial accelerometer signal associated with the subject. The control unit controls the wireless transmitting unit to transmit the ECG signal and the multi-axial accelerometer signal to the analysis device for analyzing sleep of the subject.

Adaptive time-out system

Abstract: The present invention provides a sleep timer taking the individual user behaviour into account. While in conventional sleep timers, the time interval before a device is powered off or set into standby is either fixed or has to be manually selected from a preset range of values, the sleep timer of the present invention automatically adjusts the time interval on the basis of an evaluation of the user's interaction history with the device. Moreover, the user can define an individual standby strategy by setting the sleep timer's parameters accordingly.

Sensible body vibration

Abstract: A sensible body vibrator has a vibration unit mounted in a human body support such as a bed or a chair and adapted to generate mechanical vibrations upon receipt of a low-frequency signal. The inputting of various kinds of signals (including a low-frequency signal from an acoustic device, a pleasant sleep signal for inducing the user to pleasant sleep, an awakening signal for generating a signal at a preset time, a signal for transmitting a routine time schedule to particularly the deaf and dumb, a security signal for detecting and announcing the entry of an intruder entering a house through a door or a window or by climbing a wall, an emergency signal for announcing an emergency situation at the time of an emergency such as a fire, and similar other signals) is selectively controlled. The emergency signal is given priority over the other signals when the emergency signal is input.