459 results about "Sleep period" patented technology

A method and system for efficiently managing power consumption in a mobile device controls power consumption with an adjustable sleep period or listening interval that may be user-specified and automatically tuned based on recent detected usage. With an adjustable sleep period, a receiver conserves power by leaving a sleep mode only at predefined and adjustable periods, which may be selected by the user to balance connectivity and power saving and which may be automatically incremented when the device activity is low.

A method and an apparatus are disclosed for scoring the quality of sleep experienced by a subject wearing the apparatus for a specified period. This sleep monitoring apparatus includes a motion sensor that quantifies the temporal variation in the subject's motion, an analog to digital converter to sample the sensor data, a microprocessor with embedded programmable memory to store control and processing firmware, a memory device for data storage, a display means, and a switch for staring and resetting the device. The firmware for this apparatus: (i) directs the microprocessor to sample sensor output at a prescribed time interval and to temporarily store this data in the memory device, (ii) directs the microprocessor to analyze the temporarily stored data to compute a sleep score based on the magnitude of movements recorded during the monitoring period, and (iii) controls the operation of the display means. Upon termination of the sleep period, the apparatus' display means will display a sleep score based on a scale of 0 to 100. A high score indicates restful sleep (very low movements), while a low score indicates excessive restlessness during the monitored sleep period.

A sleep efficiency monitor and methods for pacing and leading a sleeper through an optimal sleep pattern. Embodiments of the present invention include a physiological characteristic monitor for monitoring the sleep stages of a sleeper, a sensory stimulus generator for generating stimulus to affect the sleep stages of a sleeper, and a processor for determining what sleep stage the sleeper is in and what sensory stimulus is needed to cause the sleeper to move to another sleep stage. A personalized sleep profile may also be established for the sleeper and sleep guided in accordance with the profile parameters to optimize a sleep session. By providing sensory stimulus to a sleeper, the sleeper may be guided through the various sleep stages in an optimal pattern so that the sleeper awakens refreshed even if sleep is disrupted during the night or the sleeper's allotted sleep period is different than usual. Embodiments of the invention also involve calibration of the sleep guidance system to a particular sleeper.

Systems and methods provide for gathering of patient related data during non-sleep periods and modulating a therapy delivered to the patient during sleep using the gathered data. Data associated with a patient is gathered while the patient is awake. A therapy delivered to the patient during patient sleep is adjusted using the acquired data. The therapy delivered to the patient may include one or more of a respiratory therapy, such as a positive airway pressure (xPAP) therapy, a sleep disordered breathing therapy, a cardiac rhythm management therapy, such as a cardiac overdrive pacing therapy, a medication therapy, or a drug delivery therapy. The therapy delivered to the patient may be optimized using the acquired data.

An apparatus to detect the onset of sleep apnea, and to provide an automated way to awaken the sleeping patient at the onset of sleep apnea. The apparatus may also contain a recording device or computer that captures blood oxygen levels and pulse rates throughout the period of sleep, and may contain computer programs, algorithms, subroutines or logic to determine the level of blood oxygen and pulse rate that indicates the onset of a sleep apnea event. The method of arousing the patient from sleep at the onset of a sleep apnea event will decrease or eliminate the occurrence of sleep apnea, arrhythmia, and partial epilepsy over time.

An oral appliance compliance monitoring system and method comprises an oral appliance suitable for wearing in a patient's oral cavity during sleeping periods, the oral appliance having one or more sensors measuring a variety of conditions such as oxygen saturation levels in the oral cavity mucosa. The data generated by the sensor is continuously transmitted to a local scanner which is in communication with a central computer. The computer interprets the data to determine if the patent is wearing the oral appliance in compliance with a prescribed treatment regimen for breathing-related sleep disorders. Remotely located computers are authorized to receive the streamed data to enable remote monitoring of compliance in real time by a plurality of patients with treatment regimens.

The present invention discloses methods for reducing power consumption in a PON while maintaining service continuity, the method including the steps of: providing an OLT operationally connected to at least one ONU; triggering a sleep request for at least one requesting ONU; upon receiving a sleep acknowledgement, activating a sleep mode for at least one requesting ONU according to a sleep period designated in the sleep request; and terminating the sleep mode according to the sleep period. Preferably, the sleep acknowledgement is transmitted from the OLT to the requesting ONU. Preferably, the sleep period is executed by a sleep command in the sleep acknowledgement. Preferably, the method further includes the step of: upon completion of the sleep period, transmitting buffered data traffic from the OLT to a sleeping ONU. Preferably, the step of transmitting is performed without the sleeping ONU being re-registered and without causing packet reordering.

A method of determining sleep stages from signals of electrical activity recorded of a chest of a sleeping subject, the signals being measured over a plurality of epochs. The method comprising: (a) extracting a series of cardiac R-R intervals from the signals and obtaining a time-frequency decomposition from the series of cardiac R-R intervals; (b) using the time-frequency decomposition to determine at least one Slow-Wave-Sleep (SWS) period and at least one Non-SWS (NSWS) period; (c) from the at least one NSWS period, determining at least one sleep-onset (SO) period and a plurality of non-sleep periods; (d) extracting a plurality of electromyogram (EMG) parameters from a portion of the signals, the portion corresponds to a NSWS period other than the at least one SO period and other than the plurality of non-sleep period; (e) using the plurality of EMG parameters to determine at least one REM period thereby also to obtain also at least one light-sleep (LS) period defined as a NSWS period other than the SO periods, other than the non-sleep periods and other than the REM periods; thereby determining the sleep stages of the sleeping subject.

Provided is a configuration capable of executing a detection test for a comfort level including the quality of sleep, which is measurable at home without requiring the measurement of brain waves or electrocardiogram. The respiratory waveform of a subject during sleep is continuously measured and recorded from the respiratory gas flow, etc., and is window-Fourier transformed at each measurement time to generate a frequency spectrum, and a bandwidth including a respiratory frequency is extracted. The index indicating the regularity of the respiratory period of the subject is also calculated at each time point during the sleep, and the time-dependency of this index during the sleep is represented as a graph. A medical device includes a sleep evaluation system equipped with a control means for performing control so that a sleep cycle repeated at a cycle of about 90 minutes is clearly observed if the comfort level including the quality of sleep of the subject is favorable.

A plural-data transmission Start message is transmitted prior to transmission of plural data to an intermittent operation type wireless communications terminal, and when transmission of plural data is completed, a plural-data transmission End message is transmitted. The terminal which received the plural-data transmission Start message can change over the sleep period of the aforesaid intermittent operation to a shorter sleep period. Thereby, an improvement in the response performance in the case of plural-data delivery can be simultaneously obtained while maintaining the low power performance of a sensor node.

A high efficiency cardiac support system is suitable for chronic use in treating heart failure, wherein the system includes an implantable rotary blood pump, an implantable power module, a wireless power transfer subsystem, a patient monitor, and a programmer. In a cardiac support system, the cumulative efficiencies of the components of the system are capable of providing therapeutically effective blood flow for a typical day of awake hours using the energy from a single wireless recharge of an implanted rechargeable energy source. Moreover, the implantable rechargeable energy source may be recharged during a normal sleep period of 8 hours or less. The system may provide full or partial cardiac support without the need for external wearable batteries, controllers, or cables.

The invention discloses a pressure cooker and a control method thereof. The method comprises the steps of judging whether or not the time when the pressure cooker enters a depressurization stage is ata user sleep period; if yes, controlling the pressure cooker to enter the depressurization stage in advance by shortening the appointment waiting time when the pressure cooker waits to enter a heating stage and / or increasing a preset heating power of the heating stage, and controlling the pressure cooker to be depressurized in a natural cooling mode at the depressurization stage; in this way, thedepressurizing sound is effectively prevented from being too large and influencing the sleep of a user when the user is at a sleep period, it can also be ensured that a cover of the pressure cooker is opened quickly when the user is not at a sleep period, accordingly the cooking requirements of different people in different environments are met to the greatest degree, and the user experience is improved.

An intraoral mandibular advancement device to treat sleep disorders in a user having an obstructed airway includes a maxillary appliance with a main body for removable attachment to the maxillary teeth; a protrusive element distending from the central portion of the main body; and retention means extending from the main body for retention of the device on the maxillary teeth during sleep. A mandibular appliance removably attaches to the mandibular anterior teeth and includes a lingual spacer that extends posteriorly from the mandibular anterior teeth. The anterior aspect of the protrusive element of the maxillary appliance contacts the posterior edge of the lingual space and thereby causes mandibular advancement.

A technique is disclosed, by which it is possible to achieve the reduction of power consumption of each wireless node and to perform efficient access control in wireless communication system. According to this technique, a given period with a beacon transmitted from a gateway (GW) 100 at the foremost position is divided to an active period where each wireless node (P2P tag) transmits and receives a frame and a sleep period where transmitting and receiving of the frames are stopped. Further, the active period is divided to a plurality of timeslots each with a fixed length, and the period is partitioned to sub-periods where each type of a GW, a fixed node (P2P-S tag), and a mobile node (P2P-M tag) can transmit frames respectively. Each of the P2P tags selects a timeslot at random from the period for each type, and after waiting for a waiting period at random at the selected timeslot, it transmits a frame including information to identify the selected timeslot or the waiting period in addition to its own ID.

Described herein are therapeutic methods using progesterone and progesterone analogs to improve sleep quality. The methods may be particularly useful to treat subject with perturbed sleep patterns, such as subjects who suffer from mid-sleep period awakenings.

The invention discloses a sleep period separating method and system. The method is applied to a sleep period separating system. The system comprises a first measuring electrode, a second measuring electrode, a first reference electrode, a second reference electrode, an amplification collector and a period separating device. The first measuring electrode is used for being placed on the left side of the forehead or the temporal hair-free region on the left side of a testee, the second measuring electrode is used for being placed on the right side of the forehead or the temporal hair-free region on the right side of the testee, the first reference electrode is used for being placed on the periphery of the left ear of the testee, and the second reference electrode is used for being placed on the periphery of the right ear of the testee. The method comprises the steps that the first measuring electrode and the second measuring electrode are utilized for collecting electroencephalogram signals and electro-oculogram signals of the testee, the signal amplification collector is used for amplifying the electroencephalogram signals and the electro-oculogram signals and carrying out analog-digital conversion on the amplified signals. The period separating device determines the separated sleep periods according to the analog-digital converted electroencephalogram signals and electro-oculogram signals.

A CPAP apparatus including: a variable pressured air source and means to vary the air pressure delivered therefrom; a nose piece for sealed air communication with a patient's respiratory system; an air communication line from the air source to the nose piece; a sound transducer adapted to be in sound communication with the patient's respiratory system; and a feedback system controlling the output pressure of the air source in response to an output from the transducer so as to increase the output air pressure from said air source, in response to detection of sound indicative of snoring, in accordance with a predefined procedure. The sound transducer, in its most general form, comprises a pressure transducer which, in addition to detecting snoring sounds, can detect other respiratory parameters such as the rate of breathing, inhaled air flow volume, and inhaled air flow rate. Output air pressure from air source is increased in response to one or more of these parameters in accordance with a pre-defined procedure.

A sleep support system for comfortably supporting a user during sleep. More particularly, a sleep support system for face-down sleep in essentially a sitting position. The system is adapted for use with equipment and fixtures commonly found in patient recovery rooms, such as hospital beds and over-bed tables. The system provides comfortable head and arm support with a plurality of user-selectable positional adjustments. The system is foldable and portable. The system may be adapted for use with a wheelchair.

Disclosed is a method and apparatus for transmitting uplink data by a terminal performing a DRX operation in a mobile telecommunication system. According to the method and apparatus, when a UE transmits the uplink data, the UE variably controls given active and sleep periods in consideration of whether or not retransmission for the uplink data is performed, thereby more flexibly operating in the DRX mode.

An information access system comprises a reader / writer for continually transmitting an ID request signal at a first frequency and being continuously ready to receive an RF signal at a second frequency, and an active contactless information storage device having a receiver for sensing a carrier of an RF signal at the first frequency, and a transmitter for transmitting a response signal at the second frequency when the ID request signal is received. When the receiver senses a carrier of an RF signal at the first frequency in a particular predetermined period, the receiver receives further the ID request signal, and, in response to the ID request signal, the transmitter transmits a response signal at the second frequency carrying an ID of the storage device stored. In the carrier sensing, the controller causes the receiver to be in an active state and the transmitter to be in an inactive state in the predetermined periods. When the receiver attempts to sense a carrier of the RF signal at the first frequency in a particular predetermined period but detects no carrier, the controller controls the receiver and the transmitter to maintain the inactive state during a sleep period between the particular predetermined period and the subsequent predetermined period.

A programmable alarm clock system, method of operation and program product therefor with sleep analysis to identify and wake a person during non-REM sleep patterns, resulting in less subsequent drowsiness and better day-to-day functioning. The programmable alarm clock system includes at least one brain activity sensor attachable to a head of a sleeper. Brain activity signals from the sensor(s) are sent to a receiver at a local computer. The user, before retiring inputs a wake up time and attaches the sensor(s). The local computer sends brain activity signals to a remotely connected sleep analyzing server which analyzes the brain activity and identifies REM sleep periods and non-REM sleep periods. The labeled brain activity periods are returned to the local computer which waits for the wake up time. Then, the local computer sets an alarm time by adjusting the wake up time to coincide with a non-REM sleep period, if necessary and if possible. At the alarm time, the local computer sends a trigger to a remotely triggered local alarm device such as a clock, which sounds an alarm to wake the user / sleeper.

A switching regulator controls an output transistor supplying current to an inductor and generates a second supply voltage from a first supply voltage. The switching regulator has: an error amplifier amplifying a difference between the second supply voltage and a reference voltage; a current sense amplifier converting an inductor current into voltage; a current comparator comparing an output voltages of the error amplifier and the current sense amplifier, so as to output a trigger signal when the second supply voltage decreases; a pulse generation circuit generating a control pulse to drive the first output transistor in response to the trigger signal; and a sleep control circuit, during a sleep period by a sleep signal supplied from a load side, suspending operation of the current sense amplifier or the pulse generation circuit, and tentatively resuming the suspended operation in response to the trigger signal, and thereafter suspending the operation again.

Method and apparatus for conserving energy in a battery powered tag which comprises a battery, one or more sensors, and a transmitter. The tag may be used in a pneumatic tire monitoring system which senses and transmits tire pressure and temperature readings. The method fundamentally comprises: hibernating between transmissions by the transmitter; and reading at least one of the sensors after each of a plurality of sleep periods while hibernating. A hibernation period may be ended if one of the sensor readings, preferably tire temperature, is very low, and at least one of a plurality of qualification criteria is met.

An intraoral mandibular advancement device to treat sleep disorders in a user having an obstructed airway includes a maxillary appliance with a main body for removable attachment to the maxillary teeth; a protrusive element distending from the central portion of the main body; and retention means extending from the main body for retention of the device on the maxillary teeth during sleep. A mandibular appliance removably attaches to the mandibular anterior teeth and includes a lingual spacer that extends posteriorly from the mandibular anterior teeth. The anterior aspect of the protrusive element of the maxillary appliance contacts the posterior edge of the lingual space and thereby causes mandibular advancement.

Method for recovering frame timing of a mobile communication device performing a sleep mode. The mobile communication device communicates with a base station through a communication system so that wireless signals are transmitted via frames. The method includes executing a synchronous task for interrupting currently loaded control processes in a real-time operating system and for calculating a predetermined sleep period for the sleep mode, executing the synchronous task for driving the mobile communication device to enter the sleep mode during an actual sleep period, and executing the synchronous task for synchronizing frame timing of the mobile communication with frame timing of the base station according to the actual sleep period.

A method for treating snoring, sleep apnoea and other forms of sleep disordered breathing comprises administration to a patient of a therapeutically effective amount of topiramate over an appropriate period of time, such as a period substantially coniciding with the sleep period of a patient. A useful route of administration is per os. Also disclosed is the use of topiramate for the diagnosis of snoring, sleep apnoea and other forms of sleep disordered breathing.

A remote entry system for a vehicle includes a portable transmitter and a vehicle-mounted receiver. The receiver alternates between a monitoring state lasting for a monitoring period and a sleep state lasting for a sleep period. A remote control is manually activated and a message sequence is transmitted to the receiver in response to the manual activation for initiating a function of the remote entry system. The message sequence comprises a plurality of blocks transmitted at a predetermined block interval, the blocks including a preamble block and at least one message block. If the receiver detects the preamble block then it enters a reception state for detecting the message block. The preamble block has a predetermined preamble length and is comprised of a plurality of bytes separated by respective off intervals between successive bytes. Each off interval comprises a predetermined off period greater than the predetermined byte period. The predetermined off period is less than the monitoring period and the monitoring period is less than or equal to the predetermined off period plus substantially twice the predetermined byte period.

In a power saving operation management method in a mobile communication system, a base station receives a sleep mode entering request message from a mobile station desiring to enter the sleep mode, determines a sleep period type and a parameter by analyzing a combination of radio channels between the mobile station and the base station, and transmits a sleep mode entering response message including the sleep period type and the parameter.

A method for controlling a mobile communication device to enter a power-saving mode and to recover timing after the mobile communication device leaves the power-saving mode. The mobile communication device communicates with a base station through a time division multiple access (TDMA) system so that wireless signals are transmitted via frames. The method includes executing a sleep mode managing / timing recovering program for interrupting other control procedures, utilizing the sleep mode managing / timing recovering program to calculate a predetermined sleep period, controlling the mobile communication device to enter the sleep mode, executing the sleep mode managing / timing recovering program for stopping a clock signal from driving a micro-controller unit during an actual sleep period, controlling the mobile communication device to terminate the sleep mode, and executing the sleep mode managing / timing recovering program for synchronizing timing of the mobile communication device with timing of the base station according to the actual sleep period.