30results about How to "Low power mode" patented technology

Various types of data storage systems employ low power disk drives to cache data to/from high power disk drives to reduce power consumption and access times.

A mode control bit is used to adjust a mode of a memory device. The mode control bit is stored in a non-volatile memory location and selects between a data rate, low power consumption mode and a higher power, fast programming mode. In the low power consumption mode the mode control bit reduces the rate at which data bits are programmed into the memory device.

A power socket based on Zigbee wireless network technology is provided by the invention, which comprises a socket and a remote control which is required for controlling the operation of the socket. The socket comprises a single chip microcomputer of the socket as well as a temperature sensing module, an overload protection module, a relay module, a write enable module which are respectively connected with the single chip microcomputer; the remote control comprises a single chip microcomputer as well as an RS232 serial communication module, an LCD display module, a keyboard input module, an extended memory module, a clock module and an alarm module which are respectively connected with the single chip microcomputer; the socket is controlled to be operated by the remote control and both are connected with each other by radio signals while the socket is connected on each electric appliance. The device of the invention has high intelligence and a plurality of functions can be realized, such as the self-adaptation to the Zigbee network, zoning management and control, time switching, overload and overheat protections, etc.

The invention provides a bidirectional bus communication circuit which comprises a host device, a plurality of slave devices and buses, wherein the host device is connected with the slave devices via the buses; the host device comprises a host data sending circuit, a host data receiving circuit and a host CPU; and each slave device comprises a slave data sending circuit, a slave data receiving circuit and a slave CPU. The invention further provides a bidirectional bus communication method which comprises the following steps: S1, the host device supplies power for or charges the slave devices; S2, data of the host device data is downlinked, while the slave devices receive the downlinked data; and S3, data of the slave devices is uplinked, while the host device receives the uplinked data. The bidirectional bus communication circuit provided by the invention can adopt various topology modes, and supports various modes such as an annular mode and a star-like mode, so that the engineering difficulty is greatly reduced in the aspects of topology modes, cable cost and wiring difficulty, the bidirectional bus communication circuit can support long-distance communication, up to 128 slave loads, and a low-power mode, and anti-jamming capability is enhanced.

The present invention provides a bi-directional impedance matching integrated circuit which is couplable through an interface to a channel for signal transmission and reception. The invention includes a first switchable impedance and a second switchable impedance having a respective output impedance and input impedance substantially equal to a channel impedance. An impedance controller is capable of coupling the first switchable impedance to the interface in response to a transmit control signal, coupling the second switchable impedance to the interface in response to a receive control signal, and further capable of uncoupling the first switchable impedance and the second switchable impedance from a power supply and from a ground potential in response to a low power control signal. A mode selector is utilized to provide the transmit control signal, the receive control signal, and the low power control signal.

An Active Matrix Organic Light Emitting Diode (AMOLED) display and a method of controlling a display thereof are provided. The AMOLED display includes an input unit, a controller, a display unit for displaying a low power mode screen, by enabling the controller to turn off an AMOLED and to turn on a cholesteric Liquid Crystal Display (LCD) in a low power mode, and for displaying a high picture quality mode screen, by enabling the controller to turn on the AMOLED and to turn off the cholesteric LCD in a high picture quality mode. When used in an indoor environment, the AMOLED display can operate in the high picture quality mode, and when used in an outdoor environment or as an e-book reader, the AMOLED display can operate in the low power mode.

An electronic security system enables configuration and operation of different types of wireless security devices, such as multi-sensors, sirens/strobes, and/or key fobs, according to the specific capabilities of the devices, with minimized communication and a lower power mode. The minimized communication allows reduced data transmissions with the devices, with selective disablement of the communications system at times, which allows greater power savings and extended battery life. In one aspect, an application protocol is used to communicate with the different types of devices by applying preconfigured control parameters to the devices according to features of the devices. The application protocol can be built on a software stack executing on a wireless base station of the security system.

An image sensor including a first pixel circuit, a second pixel circuit, a first readout line, a second readout line, a first readout circuit, a second readout circuit and an average switch is provided. The first and second pixel circuits are in two columns of a pixel array. The first readout line transmits pixel data of the first pixel circuit to the first readout circuit. The second readout line transmits pixel data of the second pixel circuit to the second readout circuit. The average switch is arranged between the first and second readout lines and used to electrically connect the first and second readout lines in an average mode to average the pixel data on the first and second readout lines.

A transmit/receive signal processor for Wireless Local Area Network (WLAN) and Bluetooth has selectable signal processing elements for mixers, Intermediate Frequency (IF) filters, transmit power amplifiers, and clock sources which are suitable for either Bluetooth or WLAN signal processing. The operating mode of the signal processor is selected to be one of Wireless High Performance, Wireless Low Power, Bluetooth High Performance or Bluetooth Low power, and the signal processing modules are selected to provide performance or power requirements using selected modules.

The invention discloses a radar power consumption control system and a radar power consumption control method. The radar power consumption control system comprises a radar monitoring module used for monitoring a target and generating an echo signal; a power consumption control module electrically connected with the radar monitoring module; and a main control module of which one end is electricallyconnected with the radar monitoring module and the other end is electrically connected with the power consumption control module and which is used for entering a first working mode according to the echo signal and generating a control signal; The power consumption control module is used for controlling the radar monitoring module to enter a second working mode according to the control signal. Thepower consumption control module controls the radar monitoring module to maintain a low power consumption mode so as to reduce the power consumption of the radar monitoring module. The echo signal isjudged through the main control module, so that the main control module enters a deep sleep mode according to the echo signal, and the power consumption of the main control module is reduced.

The invention provides a configurable matrix multiplication device and algorithm; the configurable matrix multiplication device comprises an operation circuit, a first memory, a second memory and a controller, and the operation circuit comprises P matrix calculation units and is equipped with a matrix accumulator. The first memory and the second memory are respectively connected with the matrix calculation unit, the matrix calculation unit is connected with the matrix accumulator, and the controller is bidirectionally connected with the matrix calculation unit. Through the mode of the matrix operation unit group, the controller can select the matrix operation unit which needs to be adopted according to requirements and configure a high-performance or low-power-consumption mode, and all multipliers in the matrix operation unit group can be utilized, so that resource utilization maximization is realized.

An integrated circuit comprising, a resonator, a first clock circuit for generating a first clock signal having a first frequency in response to the resonator, a second clock circuit for generating a second clock signal having a second frequency in response to the resonator, wherein the second frequency of the second clock signal is determined by the programmable frequency divider and a clock mode control circuit coupled to the first clock circuit and the second clock circuit, the clock mode control circuit for gradually switching the resonator between the first oscillator circuit and the second oscillator circuit of the integrated circuit, using a shift register based state machine and utilizing the inertia of the resonator to smoothly transition between the two oscillators, to provide a dual mode clock output signal.

The invention belongs to the technical field of sensors, and particularly relates to a linear displacement sensor and a control method. The linear displacement sensor comprises a centralized control module, a power module, a signal transmitting module, a signal receiving and processing module, a sliding block, a setting and outputting module and a signal indicator light. The centralized control module is electrically connected with the signal transmitting module, the signal receiving and processing module, the setting and outputting module and the signal indicator light. The power module is electrically connected with the centralized control module, the signal transmitting module, the signal receiving and processing module and the setting and outputting module. The sliding block is physically connected with the signal transmitting module. The centralized control module controls the signal transmitting module to transmit excitation signals regularly, and the sliding block moves and generates magnetic field induction with the signal transmitting module so that periodic signals can be generated. According to the linear displacement sensor and the control method, the running and processing speed, reliability and output accuracy are high.

The invention provides an RS485 efficient long-distance data transmission system used for geophysical exploration. The system comprises a downlink input RS485 interface, a downlink output RS485 interface, an uplink input RS485 interface, an uplink output RS485 interface, and FPGA and an A/D conversion chip which are arranged in all collection stations. A downlink command transmission passageway is composed of the downlink input RS485 interface, the downlink output RS485 interface and the FPGA. An uplink data transmission passageway is composed of the uplink input RS485 interface, the uplink output RS485 interface and the FPGA. The invention further provides an RS485 efficient long-distance data transmission method used for geophysical exploration. Meanwhile, by means of the controllability of the RS485 transmission rate, an effective low-power-consumption mode is provided for a seismic exploration instrument system, the field standby time of exploration instruments can be greatly prolonged, and the important significance is achieved for the improvement of the field work efficiency.

The invention provides a low-power-consumption multiprocessor serial port awakening method and system, and the method comprises the steps of awakening one or more slave processors through a main processor; in the invention, the slave processor is triggered through the falling edge, an ID number judgment mechanism is added after the falling edge is triggered, the master processor sends the ID of the slave processor to be communicated to all the slave processors, the serial port module of the slave processor performs ID judgment, the slave processor is awakened only when the IDs are consistent,and otherwise, a low-power-consumption mode is kept. One-to-many processor awakening can be achieved, and it is guaranteed that the power consumption of the whole system is low.

The invention discloses a water conservancy remote measurement terminal and a working method thereof. The terminal comprises a microprocessor, and the microprocessor is connected with a clock circuit. The clock circuit is used for providing reference time for the microprocessor. The microprocessor is connected with a power module and a meter reading module. The meter reading module is provided with a power control circuit which is connected with a power port of the communication circuit. The microprocessor controls the on and off of the power of the communication circuit through the on and off of a field effect tube in a power control circuit, thereby achieving the purposes of meter reading and power consumption reduction, effectively reducing the power consumption of the terminal, and achieving the saving of energy for the terminal.

A radar level gauge for determining a filling level of a product in a tank, comprising a volatile high-speed working memory, a first processing unit connected to the volatile high-speed working memory, the first processing unit having an active mode in which the first processing unit is turned on and accesses the working memory, and an inactive mode where the first processing unit is turned off, wherein the working memory has a memory preserving low power mode during periods when the first processing unit is in inactive mode, and an auxiliary power connection configured to provide power to the volatile high-speed working memory from the power management circuitry during the low power mode, wherein the processing circuitry is designed to reduce any leakage currents from the volatile high speed memory to the other parts of the processing circuitry in the memory preserving low power mode.

The invention discloses a low-power-consumption intelligent lighting fingerprint lock and a lighting method thereof. The fingerprint lock comprises a front panel; fingerprint equipment arranged on thesurface of the front panel; an illuminating lamp arranged on the fingerprint equipment; an infrared induction module and a brightness detection module arranged on the surface of the front panel; a control circuit board arranged on the back face, right facing the detection area, of the front panel and comprising a power switch circuit, a controller and a timing module, wherein the timing module isconnected with the signal input end of the controller; the control output end of the controller is connected with the brightness detection module and the infrared induction module through the power switch circuit; the signal output ends of the infrared induction module and the brightness detection module are connected with the signal input end of the controller; and the control output end of thecontroller is also connected with the illuminating lamp. Illumination can be automatically started under the condition of insufficient light, and meanwhile the low-power-consumption mode of an intelligent lock is achieved.