51results about How to "Saving power" patented technology

A new protocol system and method is described that utilizes a Schedule Information Vector (SIV) protocol for saving power in wireless local area networks. The protocol includes an access point, one or more stations, and an SIV frame including an association ID for identifying one of the stations and a scheduled wake-up time for the identified station. The access point originates and transmits the SIV frame protocol of the scheduled wake-up time to the stations. The SIV frame protocol of the wireless network is further operable to dynamically adjust the scheduled wake-up times of the stations, a sequence of the wake-up times, a periodic wake-up time, a plurality of wake-up times, and a duration of the wake-up times of the stations. These adjustments may be made based on network traffic, traffic buffering times, data priorities, data length, and data rates.

Disclosed is a DRX control method and system in which a source base station forwards Dormancy Context, which is information for controlling the activity level of a mobile station that performs inter base station handover, to a target base station and, immediately after the mobile station completes handover, the target base station performs DRX control of the mobile station using the Dormancy Context.

A method and an apparatus reduce power used when a traffic load is low in a base station of a wireless communication system. The base station monitors a traffic load. When the traffic load is lower than a predetermined threshold and a Multiple Input Multiple Output (MIMO) mode is used to communicate with a mobile station, the MIMO mode is converted to a Single Input Multiple Output (SIMO) mode. The base station performs communication with the mobiles stations by using the SIMO mode. According to another embodiment, when the traffic load is lower than a predetermined threshold, the base station limits the number of Resource Blocks (RBs) that may be allocated to a coverage area of the base station. A Power Amplifier (PA) bias related to a transmission output of the base station is reduced based on the limited number of RBs, thereby saving power consumption of the base station.

The invention relates to wireless communication between listening devices, in particular to a hearing aid system comprising a hearing instrument and a telephone apparatus. The invention further relates to a method of receiving a telephone call and to the use of a hearing aid system. The object of the present invention is to provide a relatively simple, reliable scheme for receiving a telephone call in a hearing instrument. The problem is solved in that the telephone apparatus comprises a transmitter for establishing a short range digital, low-power link to a hearing instrument comprising a corresponding receiver. This has the advantage of providing a relatively simple and low power solution, where at least the incoming part of a telephone conversation is wirelessly transmitted via a low-power link. The invention may e.g. be used for the communication between a hearing instrument and a telephone, where a standard wireless interface for local connectivity, such as a Bluetooth interface, is not technically feasible or not available for other reasons.

The present invention controls the keypad backlight of the mobile phone so as to avoid the waste of battery power, resulting in increases of the operation use time and user convenience. The method for controlling keypad backlight of a mobile terminal according to the present invention includes determining whether or to turn on the keypad backlight by comparing a present time with a sunrise time and a sunset time of a present country and season when an event requiring to turn on or off the keypad backlight occurs, and controlling the keypad backlight to be turned on or off based on the determination.

The invention relates to a method of handling in a first electronic device transmissions to a second electronic device via a radio link. The first device supports for a radio link a first power mode using a transmission power within a first power range and a second power mode using a transmission power within a second power range. During a use of the first power mode, a value of at least one parameter is monitored. In case the monitored value of the at least one parameter lies within a predetermined value range associated to the second power mode, a switch from the first power mode to the second power mode is then caused. The invention relates equally to a module for a corresponding device, to a corresponding device, to a system comprising a corresponding device and to a corresponding software program product.

The present invention relates to a circuit and method for saving power of a mobile communication terminal to reduce electric power consumption during time slot for transmitting information, by temporarily turning off parts of the mobile communication terminal when the mobile communication terminal communicates with a base station. The circuit for saving power of a mobile communication terminal comprises: a first switching means, turned on by parts driving pulse of high level provided under control of a processor, for supplying electric power to parts of the mobile communication terminal; and a second switching means, turned on by transmission enabling pulse of high level provided during time slot for transmitting information, for making the first switching means disable to prevent the electric power from being supplied to the parts of the mobile communication terminal.

The invention provides an optical athermalization design detection system and detection method. The system comprises a communication module, a video acquisition module, an image definition evaluation module and a temperature compensation and focusing curve fitting module; the image definition evaluation module extracts the feature vectors of a video image in real time, analyzes the feature vectors according to an image quality discrimination algorithm, and obtains an optimal focusing quantity under a current temperature point when the image is has the highest definition through traversing a focusing range; and the temperature compensation and focusing curve fitting module fits an optimal focusing quantity curve in an entire airborne ambient temperature range according to optimal focusing quantities under different inputted temperature points. According to the optical athermalization design detection system and detection method of the invention, airborne ambient temperature is simulated, so that testing is performed; the optimal focusing quantity curve under different temperature is drawn, and is solidified into a photoelectric product, so that the athermalization design of an optical system can be realized. According to the detection system, image quality detection is objectively evaluated through adopting image definition, and a temperature compensation and focusing curve is automatically drawn, and therefore, labor and time can be saved. With the detection system and detection method adopted, multi-batch photoelectric products can be tested, so that repeatability is high.

A method of saving power of a station in wireless network is provided. The station comprises a connectivity module, a central processing unit, and peripheral devices. The method includes: upon receiving a wake-up signal, powering on the connectivity module, the central processing unit, and the peripheral devices; performing the central processing unit and the peripheral devices in a connection state; performing the connectivity module in an authenticated state; and upon a condition that there is no data to be transferred to the station or after the station transmits and receives all needed data, performing a sleep mode to power off the connectivity module, the central processing unit, and the peripheral devices.

Disclosed herein is a method for transmitting a signal in a wireless communication system supporting a Relay UE. The method performed by the Relay UE comprises transitioning to a Remote UE mode; monitoring a channel through which a specific Relay UE transmits a signal in the Remote UE mode; receiving relay-related system information including indication information indicating that state information of a neighbor Relay UE is transmitted for each specific period through the monitoring; receiving state information of the neighbor Relay UE from the neighbor Relay UE based on the indication information; transmitting a connection request for transmitting and receiving the signal to the neighbor Relay UE; and receiving a response to the connection request from the neighbor Relay UE.

The invention discloses a handheld seeder which comprises a shell, a first partition plate, a pressure lever, a spring, two conical nozzles, two first connecting rods and a feeding mechanism, wherein the first partition plate is arranged inside the shell and partitions the inner cavity of the shell into an installation chamber and a feeding chamber, a discharge port communicated with the feeding chamber is arranged at the bottom end of the shell, and the two conical nozzles are both hinged on the side wall of the discharge port and are connected to the pressure lever via the two first connecting rods; and the pressure lever is in movable socket joint with the interior of the installation chamber, the upper end and lower end of the pressure lever both pass through the side wall of the shell and extend out of the shell, the spring is sheathed on the pressure lever, the upper end and lower end of the spring correspondingly butt against the inner wall of the installation chamber and the pressure lever, the feeding mechanism is arranged inside the feeding chamber, and one end of the feeding mechanism is connected with the pressure lever. The handheld seeder disclosed by the invention has small volume and light weight, is flexible in use and labor-saving, greatly reduces the labor intensity of farmers and improves the production efficiency.

The invention discloses a seed sowing machine which comprises a shell, a first partition plate, a compression bar, a spring, two conical nozzles, two first connecting rods, a driving tooth, a seed discharging mechanism and a collecting tank. The first partition plate is arranged in the shell, an inner cavity of the shell is divided into a mounting cavity and a seed discharging cavity by the first partition plate, and the two conical nozzles are hinged onto the side walls of a discharge outlet and are connected with the compression bar by the two first connecting rods; the compression bar is movably inserted in the mounting cavity, the upper end and the lower end of the compression bar penetrate the side walls of the shell and extend out of the shell, the spring sleeves the compression bar, the upper end and the lower end of the spring are correspondingly butted onto the inner wall of the mounting cavity and the compression bar, the seed discharging mechanism is arranged in the seed discharging cavity, the driving tooth is connected onto the compression bar, an end of the driving tooth penetrates the first partition plate and meshes with the seed discharging mechanism, and the collecting tank is fixed into the seed discharging cavity and is arranged above the seed discharging mechanism. The seed sowing machine has the advantages that the seed sowing machine is small, light, trouble-saving and labor-saving and can be flexibly used, the labor intensity can be relieved for farmers to a great extent, and the production efficiency can be improved.

The present invention provides an infrastructure service information communication device and an infrastructure service information communication method. The infrastructure service information communication device comprises: a service processing module, configured to generate a broadcast message, wherein a physical frame header and / or a media access control frame header of the broadcast message comprise an identification information bit, the value of the identification information bit is a first value when the broadcast message is an infrastructure service information discovery message, and the infrastructure service information discovery message comprises specific information of infrastructure service information; and a wireless transceiving module, configured to exchange data with the outside of the infrastructure service information communication device, wherein the service processing module transmits the broadcast message via the wireless transceiving module. The present invention allows an STA to save a large amount of power in a process of carrying out infrastructure network service information discovery, which is also favorable for power saving of those STAs that are not engaged in the infrastructure network service information discovery.

Provided is a display device including a driver circuit for controlling supply of charges to an array of cells capable of storing the charges. In the driver circuit, a preceding electrically connecting part (SW221) controlled by a clock signal (CLK1) electrically connects an output signal line of a first circuit (211) having a positive polarity which is a potential higher than a reference potential and an output signal line of a second circuit (212) having a negative polarity which is a potential lower than the reference potential. After a predetermined time period has elapsed, a subsequent electrically connecting part (SW222) controlled by a clock signal (CLK2) electrically connects an output signal line of a third circuit (213) having the positive polarity and an output signal line of a fourth circuit (214) having the negative polarity.

For saving power of a central processing unit at a C3 power level upon processing a bus master request from a peripheral device, an arbitrator is disabled from transmitting any request to the central processing unit at the C3 power level. Afterwards, in response to a bus master request, the central processing unit is switched from the C3 power level to a transitional C0 power level while keeping the arbitrator disabled, and then switched from the transitional C0 power level to a C2 power level while enabling the arbitrator to process the bus master request.

A portable electronic device includes a reception unit (GPS receiver) that receives a positioning signal, and a power supply unit that supplies the reception unit (GPS receiver) with power. An intermittent operation range including an upper limit of an operation ratio of the reception unit (GPS receiver) is set, based on power consumption status of the power supply unit. The reception unit (GPS receiver) is intermittently operated within the intermittent operation range that is set.