scispace - formally typeset
Search or ask a question
Topic

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().


Papers
More filters
Patent
29 Mar 2017
TL;DR: In this paper, a method for placing a first processor in a sleep operating mode and running a second processor that is operative to wake the first processor from the sleep operation in response to a speech command phrase is described.
Abstract: A method include placing a first processor in a sleep operating mode and running a second processor that is operative to wake the first processor from the sleep operating mode in response to a speech command phrase. The method includes identifying, by the second processor, a speech command phrase segment and performing a control operation in response to detecting the segment in detected speech. The control operation is performed while the first processor is maintained in the sleep operating mode.

17 citations

Patent
24 Jun 2010
TL;DR: In this paper, a sleep mode operation method is described, where the sleep cycle information is an information indicating to extend a current sleep cycle to the small value of twice the previous sleep cycle and a final sleep cycle.
Abstract: Disclosed herein relates to a sleep mode operation method, including transmitting a sleep mode request message including a sleep cycle information for entering into the sleep mode to a base station; receiving a sleep mode response message including a sleep mode operating parameter from the base station; changing the state to the sleep mode referring to the sleep mode operating parameter; receiving a traffic indication message including a positive traffic indicator from the base station; and adjusting to a current sleep cycle according to the sleep cycle information included in the sleep mode request message; wherein the sleep cycle information is an information indicating to extend a current sleep cycle to the small value of twice the previous sleep cycle and a final sleep cycle or to reset the current sleep cycle to an initial sleep cycle or a new initialized sleep cycle.

17 citations

Journal ArticleDOI
TL;DR: In this article , the authors used a new maximally flat multiplier-less biorthogonal filter bank for obtaining discrete wavelet transform of the signals and computed Hjorth parameters (HOP) such as activity, mobility, and complexity from the wavelet sub-bands.

17 citations

Patent
07 Feb 1998
TL;DR: A sleep pattern timing apparatus for a user to record time before onset of sleep and separately record sleep time to assist in the diagnosis and treatment of sleeping disorders can include a timer for recording awake time and sleep time of the user and preferably a plurality of switches such as a galvanic skin response switch and a tactile plunger-type switch electrically connected to the timer so that the timer records sleep time when at least one switch is released as discussed by the authors.
Abstract: A sleep pattern timing apparatus for a user to record time before onset of sleep and to separately record sleep time to assist in the diagnosis and treatment of sleeping disorders can include a timer for recording awake time and sleep time of the user and preferably a plurality of switches such as a galvanic skin response switch and a tactile plunger-type switch electrically connected to the timer so that the timer records sleep time when at least one switch is released. Using an awake timer subsystem, the apparatus can also begin recording awake time when all switches are concurrently actuated and discontinues recording of awake time when at least one switch is released. A plurality of switches can reduce the opportunity for false actuation. The apparatus can be housed in a hand held housing to fall away when released to further reduce false actuation. The apparatus may be attached to the user with a wrist band for easy retrieval during sleep interruptions.

17 citations

Journal ArticleDOI
TL;DR: It is suggested that while drivers are able to obtain sleep during short relay operations, it is of poorer quality than sleep obtained at home.
Abstract: Relay working operations typically require two crews of train drivers to work a rotating 8-h schedule for two or more days. While one crew is driving, the other has the opportunity to sleep onboard the train. The current study investigated the impact of relay work on drivers sleep quantity and quality. Fourteen drivers wore wrist activity monitors and completed sleep/wake diaries for 3 d prior to and during short (<48 h) relay trips. Drivers obtained an average of 7.8 h sleep per night while at home, and an average of 4 h sleep per opportunity during the relay trip. Sleep obtained in the relay van was associated with longer sleep onset latencies, lower efficiency and poorer subjective quality than sleep at home. During the relay trip, drivers obtained significantly more sleep during opportunities that occurred in the evening, than those that occurred early morning or during the day. These findings suggest that while drivers are able to obtain sleep during short relay operations, it is of poorer quality than sleep obtained at home. Further, the timing of the sleep opportunities during the relay trip impacts on the quantity and quality of sleep obtained.

17 citations


Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202422
20233,172
20225,977
2021175
2020191
2019236