4044 results about "Sleep mode" 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.

Methods for using a doorbell that is configurable to wirelessly communicate with a remotely located computing device can include obtaining the doorbell that comprises a speaker, a microphone, and a camera. Methods can include entering a sleep mode in which the doorbell's wireless communication, the camera, and the microphone are disabled. Methods can include exiting the sleep mode and entering a standby mode in response to the doorbell detecting a first indication of a visitor. The standby mode can increase electrical activities of the doorbell's camera and microphone relative to the sleep mode. Methods can include entering an alert mode in response to detecting a second indication of the visitor. The doorbell can record an image using the camera during the alert mode. Wireless communication can be enabled during the alert mode to send an alert to the remotely located computing device.

Systems and methods for managing a network are described. A view of current state of the network is maintained where the current state of the network characterizes network topology and network constituents, including network entities and network elements residing in or on the network. Events are announced that correspond to changes in the state of the network and one or more network elements can be configured accordingly. Methods for managing network traffic are described that ensure forwarding and other actions taken by network elements implement globally declared network policy and refer to high-level names, independently of network topology and the location of network constituents. Methods for discovering network constituents are described, whereby are automatically configured. Routing may be performed using ACL and packets can be intercepted to permit host to continue in sleep mode. The methods are applicable to virtual environments.

The present invention provides for a system for operating a communication device (20) for reception of scheduled intermittent information messages (22) with a dual mode timer (70) that extends battery life. A controller (50) schedules the timer (70) to power down all idle components of the device (20) between message receptions in a power saving sleep mode to conserve battery power. During active mode when the device is fully active in reception of messages, the timer (70) uses a reference oscillator (90) with a relatively high frequency to support digital processing by the receiver (26). During sleep mode when only the timer is powered on, a much lower frequency sleep oscillator (96) is used to maintain the lowest possible level of power consumption within the timer itself. The timer (70) has provision for automatic temperature calibration to compensate for timing inaccuracies inherent to the low-power low-frequency crystal oscillator (96) used for the sleep mode. The resultant improvement in timer accuracy during sleep mode eliminates the need for an initial reacquisition period following wake up in active mode, thereby reducing battery drain in active mode as well.

A doorbell system can include a remote computing device and a doorbell that has a camera. The doorbell can enter a camera sleep mode wherein the camera is configured not to record. The remote computing device can be used to override a power setting of the doorbell to enable the doorbell to record a video. Then, the remote computing device can receive the video that was recorded by the doorbell.

A system for monitoring a gas / oil well is provided with a monitoring unit, a relay unit and a host interface. A monitoring unit collects data regarding the status of the gas / oil well and wirelessly transmits that data to a relay unit. The relay unit, in turn, connects to a host interface using cellular communications and transmits the data. The monitoring unit can transmit information on demand or after an alarm condition is sensed. In either case, the monitoring unit is normally in a sleep mode. The relay unit can request information from the monitoring unit or respond to a wake up transmission sent to it from either the host interface or monitoring unit. The host interface receives data from the relay unit and then informs an end user of that data.

The present application allows wake-up and unlock operations to occur using a single event, such as a single keystroke. Additionally, a check is made to ensure that activation was caused by human touch, not an object. In one embodiment, an area of a mobile device is designated as a wake-up area, which is separate from the touch screen. A user can touch the wake-up area to both activate the mobile device from a sleep mode and unlock the mobile device. In another embodiment, the wake-up area can be integrated into the touch screen, so that there is not an appearance of a separate button. Fingerprint checking and / or proximity sensors can also be integrated into the mobile device.

Methods and apparatus for notifying mobile stations in an inactive state of the presence of uplink or downlink channel configuration, broadcast system updates, traffic channel allocations and paging messages are provided. The notification can be provided in an information element in the same channel as the frame, or in a different channel. The information element identifies a subsequent frame which includes broadcast or configuration changes. The notifications for traffic channel allocations can include a first field, which identifies whether there are any traffic channel allocations for any sleep mode mobile station, and a second field for identifying the particular sleep mode mobile stations which are to receive traffic channel allocations. Notifications for paging messages can include a field, which identifies whether there are any paging messages for any idle mode mobile stations, and use second field to identify the particular idle mode mobile stations, which are to receive the paging messages.

The present invention provides a memory system that optimizes, during a sleep mode, a refresh period for a memory device, such as DRAM, which stores meaningful data and for which a refresh operation is required to prevent the loss of data. More particularly, the present invention is directed to an apparatus for controlling, in a sleep mode, a refresh period for a memory device 13 that requires a refresh operation, comprises: an encoding circuit 3 for encoding data to obtain code that can be used to correct errors equal to or more than dual errors; a decoding circuit 5 for correcting errors and for decoding the corrected code; and a refresh period controller 7 for, following a transition to the sleep mode, changing a refresh period by using data, which is stored in the memory device 13 and encoded by the encoding circuit 3, until the refresh period becomes longest in a condition where there is no error that can not be corrected by the decoding circuit 5 and the number of correctable errors does not exceed a predetermined count, and where a refresh execution circuit 15 for performing the refresh operation for the memory device can deal with the changed refresh period, and for, following the first end of the change of the refresh period, setting the refresh execution circuit 15 so that the refresh of the memory device 13 is performed at the refresh period at the first end of the change of the refresh period.

A clustering based load adaptive sleeping protocol for ad hoc networks includes a plurality of nodes forming a cluster, where the nodes in the cluster are partitioned into n groups. This partitioning is performed based on the node ID (e.g. node_id modulo n). The cluster head transmits a beacon at fixed intervals. The beacon interval is divided into N slots, where N is a multiple of n. Node sleep / activation times are synchronized to the beacon interval slots. The node's group number is used to determine the slots within a beacon interval that a node begins it s sleep cycle. Therefore, no additional signaling is required between nodes to indicate sleep patterns. The sleeping time of each node may be increased when extended periods of inactivity are detected according to an adaptive procedure.

The interactive doll simulates the character of a live person or, in other embodiments a fantasy figure or animal, in essence, simulating a living being that possesses respective human or animal qualities: displaying specific needs, tenderness, intelligence and / or understanding. The doll contains a clock or other timekeeping device and thereby knows of the time of day. It automatically enters a sleep mode at a preset sleep time during which the playtoy remains quiet, and wakens at a preset hour of the day, issuing a verbal statement to let the player know it is time to again play. By issuing a sequence of verbal requests from time to time to the player to take action of various kinds on or with the doll, determines the player's compliance or noncompliance with each such request and issues a verbal message appropriate to such compliance or non-compliance. Some of the verbal requests made are of a kind that occur at a particular time of day in the life of the character being synthesized, such as a request for a food or beverage at breakfast time, lunch time or supper time. And, from time to time at its own initiative, the playtoy may issue verbal messages of affection to the player. That doll is accompanied by external objects that simulate a variety of foods, a beverage, medicine and the like, which the doll is to be applied by the player to the doll pursuant to specific verbal requests from the doll and the doll is able to identify those objects for enhanced interactive play with the player.

A method and a system is disclosed for controlling a sleep mode in broadband wireless access communication system. The subscriber terminals are managed by grouping the subscriber terminals in a broadband wireless access communication system, so an efficiency for controlling the sleep mode of the broadband wireless access communication system may increase. A further advantage is provided that each point of time for transmitting a paging message of each group is established differently from each other within a unit time slot for controlling the sleep mode, such that subscriber terminals are managed according to groups. Another advantage is provided that the base station can previously find subscriber terminals awaking at each point of time for transmission the paging message of each other from among subscriber terminals having the sleep mode, so an efficiency for controlling the sleep mode of the broadband wireless access communication system may increase.

One embodiment provides a system for power saving in an Ethernet Passive Optic Network (EPON). The system includes an optical line terminal (OLT), an optical network unit (ONU), a traffic-detection module configured to detect status of traffic to and from the ONU, and a power-management module configured to place the ONU in sleep mode based on the detected traffic status. The ONU includes an optical transceiver that includes an optical transmitter configured to transmit optical signals to the OLT and an optical receiver configured to receive optical signals from the OLT.

Disclosed is a method for enabling a subscriber station to shift from a sleep mode to an awake mode in a broadband wireless access communication system including the sleep mode in which there exists no data to be transmitted between the subscriber station and a base station, and the awake mode in which there exists data to be exchanged between the subscriber station and the base station. The method includes measuring a Carrier-to-Interference and Noise Ratio(CINR) with respect to the base station in a time interval for monitoring a received signal during the sleep mode; and shifting from the sleep mode to the awake mode when the measured signal-to-noise ratio is less than a first threshold value set in advance.

An outdoor, battery powered digital camera includes a passive infrared motion detector that allows the camera to be left unattended, as the detector automatically triggers the camera to take a picture upon sensing the presence of a moving animal. To prolong the life of the battery, the camera goes into a power-saving sleep mode between pictures. To enable the camera to instantly take a picture upon suddenly being awakened by the motion detector, the exposure setting of the camera is periodically checked, adjusted and stored so that the camera can use that fairly recent exposure setting, or one near it, to take an instant picture rather than wasting excessive time adjusting the exposure when the animal first appears. In some cases, the camera is used in conjunction with picture management software.

An electronic device performs functionality adjustments based on a determined attention level of a user of the device. In some embodiments, the device automatically enters a sleep mode upon determining that the user has fallen asleep. The device may automatically modify functionality of the device such that disturbances to the user is minimized or power consumption is reduced. For example, the device may lower the volume of a ring tone or deactivate a communication channel. In some instances, the device may determine that the user is half-awake or paying an intermediate level of attention and activate an intermediate mode where at least some functionality is modified or adjusted. A device subsequently determining that the user is fully awake or actively engaged with the device causes the device to return to a standard mode of operation, where functionality of the device is adjusted to one appropriate for the user's attention level.

An advertising compliance monitoring system is provided that includes a tag affixed to a sign or marketing material or shopper ID card, the tag communicating with a reader on a periodic basis. The tag includes a memory for storing tag data, a transmitter and a receiver. The tag uses sleep modes to conserve power. The tag transmits tag data to a reader in response to an interrogation request, or automatically on a periodic basis. The tag data includes an identification number used to identify the tag associated with a particular sign, price, marketing material or shopper, status data (e.g., delivered, displayed), and time and date information. This data is processed by a central server to determine compliance with and / or exposure to a particular advertising program.

A transceiver which keeps circuitry associated with a receiver in a powered down state during periods when a Received Signal Strength Indicator (RSSI) indicates that a signal being received is below a pre-determined threshold level, and which begins to power up the transmitter as soon as it is determined that a packet being received requires a response. The RSSI signal represents the strength of any signal current being received, and if the RSSI signal falls below a given threshold level, digital circuitry associated with the back-end circuitry of the receiver system is disabled. If the RSSI signal rises above the threshold level, the digital circuitry of the receiver is enabled. A control circuit within the transceiver processes the packet as it is received to determine whether the packet requires a response. If it is determined that a response is necessary, the control circuit provides a control signal to the transmitter to power up the transmitter from a sleep mode even before the entire packet has been received and processed. The control circuit then continues to process the remainder of the packet as it is received while the transmitter powers up from the sleep mode. In this manner, the transmitter will become stabilized much earlier. Accordingly, the transceiver is able to respond more quickly than conventional devices and is thus able to increase response times and overall data exchange rates. Moreover, battery power of the transceiver is utilized more efficiently compared to devices which must continuously maintain the receiver and transmitter in fully powered modes.

A collated wireless local area network / Bluetooth (WLAN / BT) device avoids radio interference between the two wireless systems by collaborative coexistence mechanisms. The collocated WLAN / BT device and coexistence methods include time division multiplexing based on various operating states of the collocated WLAN and BT systems, respectively. Such operating states include the transmission of low priority WLAN and BT data signals during WLAN and BT periods, the sleep mode of the collocated WLAN system, transmission of high priority data signals from the collocated BT system during time division multiplexed WLAN and BT periods, the transition of the collocated BT system from an active state to an idle state, and the transition of the collocated WLAN system from an active state to an idle state.

A method and apparatus for performing a Discontinuous Reception (DRX) operation of a connected User Equipment (UE) in a mobile communication system are provided. For a packet service, adjusting an active period length according to the requirements of traffic at a reception time provides a DRX operation. Also, the UE enters into a sleep mode after confirming successful reception of packets including retransmission packets and sending an RLC ACK signal for the packets.

Disclosed herein is a wireless power transmitter for solving a problem that a collision occurs when recognizing an initial wireless power receiver in two-way communication of wireless power transmission. A wireless power transmitter according to a first embodiment disclosed herein may include a transceiver configured to transmit and / or receive a message to and / or from a wireless power receiver; and a controller configured to control the transceiver to transmit a message for requesting identification information to the wireless power receiver, and determine whether the identification information is validly received from the wireless power receiver by the transceiver in response to the identification information request, and control the transceiver to transmit a message for requesting sleep mode switching to the wireless power receiver when the identification information is validly received by the transceiver.

A method and a system is disclosed for controlling a sleep mode in broadband wireless access communication system. The subscriber terminals are managed by grouping the subscriber terminals in a broadband wireless access communication system, so an efficiency for controlling the sleep mode of the broadband wireless access communication system may increase. A further advantage is provided that each point of time for transmitting a paging message of each group is established differently from each other within a unit time slot for controlling the sleep mode, such that subscriber terminals are managed according to groups. Another advantage is provided that the base station can previously find subscriber terminals awaking at each point of time for transmission the paging message of each other from among subscriber terminals having the sleep mode, so an efficiency for controlling the sleep mode of the broadband wireless access communication system may increase.

Collaborative coexistence of co-located mobile WiMAX, wireless LAN, and / or Bluetooth radios. Within a communication device that includes multi-protocol communication capability, the various radio modules included within such a communication device operate cooperatively such that collisions are avoided between those various radios. When a first of the radio modules operates as governed by a relatively rigid frame structure, a second of the radio modules capitalizes upon that predetermined nature (of the relatively rigid frame structure) to support communication during times in which that first radio module has a lower level of activity (e.g., turned off completely, within a power savings mode, in a sleep mode, etc.). The radio module operation is performed within a time-orthogonal manner, such that multiple radio modules are not attempting to transmit or receive simultaneously. Moreover, CTS2SELF operation can be employed alone or in conjunction with power savings operation of co-located radios within a communication device.

An embodiment of the invention introduces a method for controlling a touch panel, executed by a micro-controller of a portable computer, which contains at least the following steps. A control signal is outputted to direct a touch panel controller to disable the whole touch panel or a portion thereof before sleep mode is entered.

A hearing aid that is capable of automatically switching between a full-function mode and a sleep mode depending on the location of the hearing aid. The hearing aid comprises a hearing aid module for processing an input signal and generating a compensated output signal and, a location sensor module for providing a location information signal to indicate one of an in-the-ear case and an out-of-the-ear case. The hearing aid module automatically switches to the full-function mode when the location information signal indicates the in-the-ear case and the hearing aid module automatically switches to the sleep mode when the location information signal indicates the out-of-the-ear case.

In some embodiments, the invention involves off-loading processor workloads to reduce power requirements of a multi-processor system. In one embodiment, a multi-processor system redistributes computing among the multiple processors and changes the state of one or more processors to sleep mode. In another embodiment, a multi-processor system throttles the processor speed of under-utilized processors to reduce power consumption. Other embodiments are described and claimed.

An inductive wireless power transfer system comprises a transmitter configured to generate an electromagnetic field to a coupling region for providing energy transfer to a wireless power receiving apparatus. The transmitter includes control logic configured to determine a power component of the transmitter, and determine a presence of a foreign object within the coupling region in response to a comparison of the power component and a desired threshold for the power component. Related inductive methods for detecting a foreign object in an inductive wireless power transfer coupling region of an inductive wireless power transfer system and operating a sleep mode of a wireless power transmitter are disclosed.

A power management scheme for a wireless communications device processor substantially implemented on a single CMOS integrated circuit is described. By incorporating controls for sleep and wake-up mode transitions in the processor's control logic, improved power savings with reduced latency is provided, obviating the need for hardware-focused solutions with elaborate signaling mechanisms. A fully integrated power management with staged wake-up operations controlled by the MAC solution consumes less power than the conventional wireless LAN solutions in standby mode.

Methods and systems are provided for dynamically managing power consumption in a digital system. These methods and systems broadly provide for permitting clients executing on a digital system to register for notification of power event and to request that power events occur. Registered clients are notified when a power event is requested and the requested power event is caused to occur. Power events are selected from a group comprising setpoint change, enter deep sleep mode, enter snooze mode, and change to power supply status. There may also be user-defined custom power events. If the requested power event is a setpoint change, a check is made to verify that each of the registered clients can operate at the requested setpoint. The digital system may be comprised of processor with a single processing core with a single clock or a processor with multiple processing cores and multiple clocks.

An apparatus (10) and method for allowing a moving user to automatically determine and store locations (11) over an extended period of time, to display the series of such locations (11), and to actively assist in returning to an earlier location. The apparatus (10) includes an antenna (16) for facilitating satellite lock, a fastening mechanism (18) for positioning the antenna (10) for best reception, and a satellite lock indicator (20) for communicating loss of satellite lock. The apparatus (10) also includes a timer (26) for measuring an interval during which the apparatus (10) is in a power-conserving sleep mode, and after which the user's current location is automatically determined. Active assistance in returning to an earlier location, either by traveling back along the path earlier traveled or by traveling along a more direct route, is accomplished by warning the user whenever the user's course deviates from the path or route.