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3469 results about "Power mode" patented technology

Wireless repeater for sensor system

A low cost, robust, repeater for a wireless ambient sensor system that provides an extended period of operability without maintenance is described. The repeater includes a controller and first and second transceivers. The controller is configured to control operation of said first transceiver and said second transceiver. The wireless repeater includes a repeater identification. The controller is configured to manage a sensor unit identification table that contains a list of sensor unit identification codes, where entries for the sensor unit identification table are received by the second transceiver from the base unit and identified by the repeater identification. The controller controls the first transceiver and the second transceiver to forward data from sensor units listed in said sensor unit identification table and to ignore data from sensor units not listed in said sensor unit identification table. The controller also controls the first transceiver and the second transceiver to forward data from the base unit that is addressed to sensor units listed in said sensor unit identification table and to ignore data from the base unit that is addressed to sensor units not listed in said sensor unit identification table. The controller places the first transceiver and the second transceiver in a low-power mode when no transmissions are expected from the base unit or from the sensor units listed in the sensor identification table.
Owner:GOOGLE LLC

Method and system for low power mode management for complex bluetooth devices

Methods and systems for controlling a personal area network access device are disclosed herein. Aspects of the method may comprise receiving an application event associated with a particular application running on a complex Bluetooth® device that is running a plurality of simultaneous applications, and determining whether a low power mode is allowed by the particular application running on the complex Bluetooth® device. If the low power mode is allowed by the particular application running on the complex Bluetooth® device, the complex Bluetooth® device running the particular application may be configured to operate utilizing the allowed low power mode. The allowed low power mode may be switched by the complex Bluetooth® device based on the application event. An active mode may be switched from a current mode prior to switching to the allowed power mode based on the application event.
Owner:AVAGO TECH INT SALES PTE LTD

Power management and control for a microcontroller

A power management system for a microcontroller. The power management system includes a power management state machine for controlling a power mode of a central processing unit (CPU) and each subsystem within the microcontroller. Each microcontroller subsystem is connected to the system through a configurable peripheral interface (FPI). Each FPI includes a software configuration register (SFR) that can be configured by an operating system or application program. The SFR for the various FPIs can be preconfigured to allow the response to each of the power modes of the power management state machine to be independently controlled for each subsystem.
Owner:MEDIATEK INC

Transceiver control with sleep mode operation

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.
Owner:TELXON INC

Head-mounted display apparatus

A head-mounted display apparatus comprises a see-through image display portion for setting a display frame in a display-capable range, and displaying an image in such a manner that the image is superimposed on an image of the external environment in the display frame, an angular velocity sensor for detecting the tilting angle of the head of an observer; an LCD driver, a second CPU and the like which control the display frame to move in an amount corresponding to the angle detected by the angle detection means in the direction opposite to the tilting direction of the observer's head, whereby the position of a virtual image, observed by the observer, is kept substantially constant, irrespective of the tilting of the observer's head, and first CPU which controls the apparatus so that the mode of the apparatus is automatically changed to a low consumption power mode.
Owner:OLYMPUS CORP

Computing device having a low power secondary processor coupled to a keyboard controller

This abstract has been included pursuant to Section 1.72(b) of the Rules for Patent and Trademark Cases, Title 37 of the Code of Federal Regulations. This abstract is intended only to enable the Patent and Trademark Office and the public to generally determine the nature of the technical disclosure. This abstract is not intended to aid in the interpretation of the scope of any claim. A portable computing device includes a keyboard controller that receives keystroke information as well as inputs from a graphical pointing device and conveys these to a main central processing unit. The keyboard controller additionally communicates with a battery module through a second interface in order to monitor and control the charging of the module. A low power secondary processor is interfaced to the keyboard controller through the second interface in order to receive keystroke information as well as information from the graphical pointing device. When the keyboard controller is instructed to do so, keystroke and graphical pointing information are conveyed exclusively to the secondary processor, thereby enabling the portable computing device to perform some functions without requiring the main central processing unit to be operational and thus operate in a low power mode.
Owner:HEWLETT PACKARD DEV CO LP
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