36results about How to "Unnecessary power consumption" patented technology

Methods and systems consistent with the present invention provide a method for dynamically controlling power consumption in a digital demodulator circuit by varying clock rates and bit widths of demodulator components including an analog to digital converter, decimation filter, OFDM operating engine, FEC decoder, and MPE-FEC processor, according to parameters and conditions of the received signal including modulation mode, signal to noise ratio, effective bit transmission rate, bit error rate, packet error rate, adjacent channel interference, and co-channel interference.

A tilt detectable automatically-operating cleaner includes a tilt detecting unit detecting a tilting state of a main body of the cleaner, a control unit calculating a tilting angle using a detected signal from the tilt detecting unit and determining if the main body tilts by comparing the tilting angle with a reference angle, a driving unit stopping driving of the cleaner when it is determined by the control unit that the main body tilts, and a suction unit controlling suction operation when it is determined by the control unit that the main body tilts

A wireless controller with a universal serial bus (USB) and a system having the same are disclosed. The wireless controller with the USB includes an input unit, a detection unit, and a wireless transmission module. The input unit is configured to receive the data signal from the main device while the detecting unit that is coupled to the input unit is configured to detect the data signal before generating a corresponding control signal, which may be in turn transmitted by the wireless transmission module. Depending on the control signal, sockets in a power socket device may be powered or not. Accordingly, auxiliary device plugged to the socket may be powered or not powered when an operating status of a main device varies.

Disclosed is an asynchronous MAC based sensor node using a Wake-Up RF. The sensor node includes a main transceiver to transmit/receive data, a Wake-Up transceiver to transit a state of the sensor node; and a micro-control unit, which transmits a Wake-Up frame to at least one receiving node through the Wake-Up transceiver such that the receiving node is activated from an inactive state into an active state and transmits data to the activated receiving node through the main transceiver. The asynchronous MAC based sensor node reduces unnecessary power consumption, hop-by-hop delay, and overhead required for timing synchronization, thereby implementing an effective sensor

A helmet with an illumination device with at least one electric light source arranged on the outside of the helmet shell, a sensor for detecting the arrangement of the helmet on a head, an electric control device and an electric voltage source electrically connected with the electric light source and the sensor, wherein the electric control device is designed such that it switches on the electric light source or only permits the switching on of the electric light source when the sensor detects the arrangement of the helmet on a head.

There is disclosed a method of indicating a resource occupancy scheme and processing a resource occupancy scheme indicator so as to enable a UE to be aware a resource occupancy scheme of the network side and avoid an unnecessary power waste and unnecessary interference, and in the method, a base station generates a corresponding resource indicator for a resource occupancy scheme of a legacy control resource area and an enhanced control resource area in each downlink subframe to be transmitted in a specific periodicity and sends the resource indicator to a UE in a resource indication message, and the UE determines from the obtained resource indicator the resource occupancy scheme of the legacy control resource area and the enhanced control resource area in each downlink subframe to be transmitted in the specific periodicity and performs a corresponding resource handling mode, so that the UE can blindly detect in PDCCH common and user spaces or receive control information carried on PHICH resource at an accurate position to thereby avoid an unnecessary power waste of and unnecessary interference to the UE due to blind detection or reception and improve effectively the performance of a system.

A driving controller for driving a load is disclosed. The driving circuit includes a driving power supply and the driving controller. The driving power supply provides a first power source to the load. The controller is coupled to a second power source to receive an electric power for operating. The controller controls the amount of the electric power to the load when operating in a first mode and stops the driving power supply from providing the electric power to the load when operating in a second mode. The controller operates exclusively in the first mode before the driving power supply provides the first power source to the load.

Disclosed herein is a remote mute method of audio streaming using Bluetooth communication. More specifically, a method for controlling the transmission and reception of audio streams in a wireless communication system supporting Bluetooth communication includes transmitting, by a first device, audio streaming to a second device or receiving audio streaming from the second device, transmitting, by the first device, a remote mute command for stopping the transmission or reception of the audio streaming to the second device during the transmission or reception of the audio streaming, and removing, by the first device, a channel used for the transmission or reception of the audio streaming.

A battery voltage balance apparatus including a balance determining unit and a converting unit is provided. The balance determining unit is coupled to a plurality of battery units and determines whether to perform a battery voltage balance process according to battery voltages of each battery units. The converting unit has an energy storage circuit and is coupled to the battery units. In the battery voltage balance process, the converting unit stores energy in the energy storage circuit and selectively charging at least one of the battery units by the energy storage circuit, so that the voltage differences between any two of the battery units are reduced to be lower than a predetermined value or a predetermined percentage.

The present disclosure provides a wireless interference scanning method and device for adaptive frequency hopping. The wireless interference scanning method comprise detecting the overall signal magnitude over a wide-band; determining whether the overall signal magnitude over the wide-band is larger than a threshold; sequentially detecting a plurality of channels in the wide-band to determine whether there is an interference signal in the channels when the overall signal magnitude over the wide-band is larger than the threshold; and redetecting the overall signal magnitude over the wide-band for determining whether the overall signal magnitude over the wide-band is larger than the threshold when the overall signal magnitude over the wide-band is not larger than the threshold.

The present invention relates to an automatic water supply-type steam generator using vapor pressure for creating the optimum vacuum pressure inside a pressurized water supply tank, and for smoothly providing water to the pressurized water supply tank by using the strong aspiration force that is created by means of the vacuum pressure while continuously generating steam. The present invention is characterized by allowing control of the vacuum pressure to the optimum state when creating the vacuum pressure inside the pressurized water supply tank by introducing an adequate amount of outside air from the atmosphere through an air vent. In addition, the present invention is characterized by providing a means for cooling the pressurized water supply tank so as to control the vacuum pressure inside the tank to the optimum state.

The electromagnet includes a valve-opening side coil portion supplied with a current to thereby generate a first magnetic flux and generate electromagnetic force in a direction moving the valve-opening side moving element toward a valve-opening position, and a valve-closing side coil portion supplied with a current to thereby generate a second magnetic flux and generate electromagnetic force in a direction moving the valve-closing side moving element toward the valve-closing position. The valve-opening side coil portion and the valve-closing side coil portion are constituted of an identical connection. The electromagnet further has a sub-coil constituted of a separate connection from the valve-opening side coil portion and the valve-closing side coil portion. By the current supply to the sub-coil, a third magnetic flux reducing at least one of the first magnetic flux and the second magnetic flux is generated.

A cooling fan control method for a vehicle is provided. The method includes turning on a starting of the vehicle and sensing a stack temperature. A first required speed of first and second cooling fans required by the stack radiator is set and a temperature of an electrical equipment is sensed to set a second required speed of the first cooling fan. When an air conditioner is operated; an air conditioner pressure is sensed and a second required speed of the second cooling fan required by the condenser is set. The method then compares the required speeds as well as a resonance frequency RPM to determine different setting conditions of the fans. The operation of the fans is complete when the coolant temperature and an air conditioner pressure of the stack and the electrical equipment are within a predetermined setting value.

A plasma display panel (PDP) and a method of driving the same, and the PDP includes a lower substrate and an upper substrate facing each other with a discharge space therebetween, a plurality of barrier ribs arranged between the lower substrate and the upper substrate to partition the discharge space and define a plurality of discharge cells, a pair of first and second sustain electrodes corresponding to the discharge cells electron emission sources that correspond to the discharge cells, emit electrons into the discharge cells to address the discharge cells and simultaneously cause a sustain discharge between the first and second sustain electrodes, and a florescent layer coated on inner walls of the discharge cells.

A method of controlling cooling fans for a vehicle is configured to control operation speeds of first and second cooling fans depending on a running state and operation of an air conditioner of the vehicle in a cooling module including a stack radiator, an electrical equipment radiator disposed in front of the stack radiator, a condenser disposed in parallel with reference to a width direction of the electrical equipment radiator and the vehicle, and the first and second cooling fans being provided at positions respectively corresponding to the electrical equipment radiator and the condenser in the rear of the stack radiator, including: independently controlling operation of each cooling fan by comparing required speeds of the cooling fans of constituent elements when operating the cooling fans provided as a pair in the cooling module depending on the running state and the operation of the air conditioner in the electric vehicle.

A method for detecting current leakage of electronic components in an electronic device determines a target electronic component that needs to be analyzed for current leakage in response to a user selection. The target electronic component is controlled to enter into a power-off state, and a first current value of the electronic device is acquired from a digital power supply. The target electronic component is activated into a working state, and then is controlled to enter into a sleep state. A second current value of the electronic device is acquired from the digital power supply. It is determined that the current leakage is occurring in the target electronic component, if a first difference between the second current value and the first current value is more than a predetermined value.

A satellite radio-wave reception device includes a demodulator. A demodulator determines an assumption code, identifies a plurality of reception codes from a received radio wave, collates an assumption code in a deviation range, which is previously set with respect to reception timing of the reception codes, and each of the reception codes, holds information related to a collation result in each deviation amount with respect to the plurality of reception codes, determines one of correspondences and noncorrespondences, the number of which one is larger, as matching in each code block, and identifies a deviation amount in which the integrated value of matching corresponding to an integrated value of the number of matching codes in a plurality of code blocks in each deviation amount satisfies a predetermined matching condition.

A method for processing data using a time-stationary multiple-instruction word processing apparatus, arranged to execute a plurality of instructions in parallel, said method comprising the following steps: generating a set of multiple-instruction words (INS(i), INS(i+1), INS(i+2)), wherein each multiple-instruction word comprises a plurality of instruction fields, wherein each instruction field encodes control information for a corresponding resource of the processing apparatus, and wherein bit changes between an instruction field related to a no-operation instruction, and a corresponding instruction field of an adjacent multiple-instruction word are minimised; storing input data in a register file (RF₀, RF₁); processing data retrieved from the register file based on control information derived from the set of multiple-instruction words; disabling the write back of result data to the register file during execution of a no-operation instruction using a first dedicated no-operation code (ws₀₀, ws₁₀, wp₀₀, wp₁₀).

The present invention relates to a wireless access system supporting an M2M environment, and provides a method and an apparatus for broadcasting a medium access control (MAC) control message. A method for receiving a broadcasting message from the wireless access system supporting the M2M environment, according to one embodiment of the present invention, comprises the steps of: an M2M equipment receiving a broadcast allocation map information element including a message type field, which shows the type of the broadcasting message, and resource allocation information, which shows an allocation region of a broadcasting burst from which the broadcasting message is transmitted; and the M2M equipment confirming the type of the broadcasting message which is shown by the message type field, wherein when the broadcasting message type is related to the M2M equipment, the M2M equipment receives the broadcasting message through the broadcasting burst that is indicated by the resource allocation information, and when the broadcasting message type is not related to the M2M equipment, the M2M equipment does not decode the broadcasting burst that is indicated by the resource allocation information.