1216results about How to "Reduce operating frequency" patented technology

The present invention relates to a system and a method of measuring a physiological variable in a body. A basic idea of the present invention is to measure a physiological variable in a body by means of employing a sensor (314) which is arranged to be disposed in the body for measuring the physiological variable. The sensor must be provided with a supply voltage in order to be operable. Therefore, a control unit (322) disposed outside the body provides this supply voltage to the sensor. The control unit also receives, from the sensor, via a wired connection (311), signals that represent the physiological variables that are measured. The control unit is arranged with a communication interface (401, 701) and a modulator (301) for wireless communication of the measured physiological variables for presentation purposes.

An instantaneous current and instantaneous voltage of a three-phase coil of a brushless DC motor are detected, and the internal condition of a compressor is predicted from these detection values. The prediction about the internal condition of the compressor is made in such a way that motor driving torque which is a parameter of a motor model is identified and poor lubrication, liquid compression or the like is predicted from this identified motor driving torque. This enables it to make, in real time, a failure forecast, failure diagnosis etc. on the compressor.

A method of controlling power consumption in an electronic device may include selecting between an on mode of the electronic device in which first circuitry of the electronic device is configured to perform a first operation, an off/standby mode in which second circuitry of the electronic device is configured to perform a second operation, and a sleep/vacation mode in which the second circuitry is controlled to at least one of reduce a frequency of and suspend performance of the second operation. An electronic device may include: first circuitry configured to perform a first operation when the electronic device is in an on mode; second circuitry configured to perform a second operation when in an off/standby mode; and a circuitry controller configured to control the second circuitry to at least one of reduce a frequency of and suspend performance of the second operation when in a sleep/vacation mode.

The invention provides an air conditioner control method and device for preventing condensation water dripping and an air conditioner. The air conditioner control method for preventing condensation water dripping comprises the following steps: measuring first indoor humidity after detecting that a current running mode of the air conditioner is a refrigeration mode or a dehumidifying mode; measuring second indoor humidity after the air conditioner runs for a first preset time in the current running mode; calculating humidity difference between the first humidity and the second humidity; and judging whether the current running mode of the air conditioner is changed or not according to the humidity difference and the second humidity. Whether the risk of condensation exists or not when the air conditioner continues running can be known according to the humidity difference and the second humidity, therefore, whether the current running mode of the air conditioner is changed or not can be judged, and the purpose of preventing condensation is achieved by changing the current running mode of the air conditioner.

A system for protecting against overheating of a CPU whose operation frequency is changed due to voltage variation of a driving power, includes a CPU temperature sensor to detect the temperature of the CPU, a reference temperature sensor to detect the temperature of a circuit block or multiple circuits heated due to the operation frequency of the CPU, a comparing part to output a signal indicating a higher temperature of the temperature of the CPU and the temperature of the circuit block or multiple circuits by comparing temperature values detected by the respective CPU and reference temperature sensors, and a CPU power supply to supply a stepwise decreasing driving power to decrease the operation frequency of the CPU in a stepwise fashion when the temperature value increases based on the signal indicating the higher temperature indicated by the comparing part. Thus, a system for protecting against overheating of a CPU enables only one overheating-protection circuit to solve the problem of overheating of multiple circuits that are easily heated due to the frequency of operation of the CPU, thus maximizing the operation efficiency of the CPU and also efficiently protecting the CPU from damage.

A bus controller includes: a data receiving section for receiving output status information from other bus controllers on transmission routes available; a route load detecting section for calculating uniformity of distribution index indicating the degree of non-uniformity in transmission flow rate between the routes based on the output status information; a routing section for determining transmission routes, of which the transmission flow rates have been adjusted by reference to the index; a packet assembling section for generating a packet; a data output section for outputting the packet through one of output ports; a header analyzing section for determining which output port is connected to a transmission route chosen by reference to information about the packet receiving end; and a data output section for outputting the packet through the output port.

The embodiment of the invention provides a control method and device for delaying frosting of an air-conditioner and an air-conditioner. According to the method, low pressure and outdoor evaporator inlet temperature are obtained every preset time intervals; according to the obtained low pressure and the outdoor evaporator inlet temperature, whether the air-conditioner frosts or not is determined;and when the air-conditioner frosts, whether a compressor has enough reliability or not is determined according to the exhausting superheat degree. When the compressor has the enough reliability, thecompressor is controlled to reduce the working frequency, meanwhile, the opening degree of an expansion valve is increased to prevent frosting from aggravating, an outdoor fan does not need to reverseand defrost, while it is ensured that the exhausting superheat degree is enough, the reliability of a pressing machine is not influenced, frosting is prevented from aggravating more and more, and useexperience of users is improved.

In bi-directional imaging, such as bi-directional printing, a galvanometric oscillator scans a light beam through a scan path across an imaging window. A controller enables transmission of video data to a modulator when the light beam is positioned for imaging on the imaging window. Video data is transmitted to the modulator when the light beam is traveling in a forward direction or a reverse direction across the imaging window, whereby a modulated light beam is capable of producing an image when traveling in the forward or reverse directions.