872 results about "Cycle control" patented technology

A lighting fixture having a lamp and alarm clock with a wake-up cycle and sleep cycle with gradually increasing and decreasing light and sounds. The lighting fixture includes at least one lamp for emitting light in the wake-up cycle and in the sleep cycle. The lighting fixture also includes at least one speaker for emitting sound in the wake-up cycle and in the sleep cycle. The lighting fixture further includes a dimmer switch for dimming the light and wake-up cycle control buttons for setting and controlling a wake-up cycle having a light control button for setting the time when the wake-up cycle control buttons activates the light mode and gradually increases the lamp brightness emitted from the at least one lamp; and sound control buttons for setting and controlling the time when the wake-up cycle control buttons activates the sound mode and gradually increases the sound intensity emitted from the at least one speaker; and sound selection switches for selecting one of multiple pre-set sounds for the sound mode of the wake-up cycle, or for full time operation as background sound.

An electromechanical control system of an electric bike integrating a smart mobile device and cloud services therewith enables a controller of the electric bike to independently monitor and control operation of an electric motor, is integrated with an external smart mobile device with a communication interface thereof, configures cycling control parameters of the controller with the externally available cycling control parameters through an user interface provided by the smart mobile device to adapt to cyclists' physical strength. Cycling information and bike information can be displayed on the smart mobile device or make them openly available through the online function of the smart mobile device for cyclists to easily record or manage related information during bike cycling.

A power factor corrected boost converter circuit includes a rectifier connectable to an ac input and having a rectified dc output provided across a dc bus, an inductor having first and second terminals connected in one leg of the dc bus, an integrated circuit comprising a control circuit for controlling a switch, the integrated circuit including a housing enclosing the control circuit, the integrated circuit having a power terminal, a ground terminal, a first control input terminal coupled to an output of the converter circuit, and a second control input terminal coupled to a sensor for sensing current in the dc bus and further having an output terminal connected to the switch, a boost rectifier diode having a first terminal, the diode coupled to the inductor, and a storage capacitor connected to the diode. The control circuit comprises a one cycle control circuit having an integrator reset by a clock signal for each cycle of the clock signal. The circuit further includes any or all of an inrush current limiting circuit for limiting the current through the inductor to a value below a predetermined level, a fan motor speed controller and a housekeeping power supply controller.

A method is provided for operating a dual-use wireless device. The method includes: receiving an external timing signal (460) at a first wireless circuit (480) in the device (605); synchronizing a first clock in the first wireless circuit with the external timing signal (610); sending a first internal timing signal (570) from the first wireless circuit to a second wireless circuit in the device, after the synchronizing (615); and listening for a remote periodic control signal at the second wireless circuit for a set monitoring time, a start of the monitoring time being based on the first internal timing signal (865). The second wireless circuit sends an association request if the second wireless circuit hears the remote periodic control signal within the monitoring time (875), and sends a local periodic control signal if the second wireless circuit does not hear the remote periodic control signal within the monitoring time (625).

The bridgeless boost topology reduces the power dissipation, cost, and size of prior PFC systems by eliminating the intrinsic loss of the input rectifier bridge. Sensing of the input line voltage by the controller is unnecessary. The use of One Cycle Control (also known as Single Cycle Control) allows the Power Factor Correction function to be performed without complex rectification networks to obtain the AC line voltage reference. The use of bi-directional switches makes it possible to control inrush current (the startup over-current due to the charging of the output bulk capacitor), which allows elimination of over-current limiting devices and reduction of the diode surge capability requirements. Moving the boost inductor to the system input adds an additional filtering function, reducing the cost of input EMI filtering.

The present invention provides systems and apparatuses for dynamically controlling the operational modes of a single luminaire or a group of networked luminaires configured to deliver an illumination pattern having a decorative colored glow surrounding a central region of substantially uniform brightness. A control module for the luminaire is configured to drive three dimmable fluorescent ballasts, as well as a LED module. A variety of operational modes including different schemes for color mixing and color cycle control can be selected by a user and implemented by a microcontroller. A group of luminaires is connected in a standard communication protocol-based master-slave configuration, where the slave units respond to commands received from the master unit, and the last slave unit automatically engages terminating and biasing resistors for proper operation of the network.

In a self refresh period control circuit for controlling a refresh period of a semiconductor memory device in response to operating temperature of the device, a temperature sensor part generates a first period control signal in response to a self refresh start signal or self refresh completion signal, senses operating temperature of the semiconductor memory device in response to a clock signal generated by the self refresh start signal, and generates a corresponding second period control signal. A period magnification control part controls a self refresh period in response to the first and second period control signals. Accordingly, a refresh period characteristic change based on operating temperature, which is causable by an initial self refresh, is implemented.

A method for regenerating an exhaust aftertreatment system, in particular a particulate filter of an internal combustion engine, situated in a vehicle, having regeneration cycles controlled by a control device. An optimized regeneration of the exhaust aftertreatment system is achieved by supplying information relating to the travel route to the control device and controlling the regeneration cycles, taking the information into consideration.

The present invention provides a pressure control method and apparatus of an electric pressure cooker, and the electric pressure cooker. The method comprises a detection step that a temperature wrap disposed at the bottom of the electric pressure cooker detects temperature of the electric pressure cooker; and a heating device control step of controlling on and off of a heating device according to the temperature detected by the temperature wrap when a pressure switch is off, specifically, opening the heating device to heat when the temperature is less than or equal to first temperature, and closing the heating device and stopping heating when the temperature is great than or equal to second temperature, wherein the second temperature is greater than the first temperature, the first temperature is great than or equal to 100 DEG C and less than or equal to 108 DEG C, and the second temperature is great than or equal to 102 DEG C and less than or equal to 110 DEG C. According to the technical scheme, cycle control of the pressure in a certain range is achieved through a single pressure switch without internal temperature-sensitive monitoring, and use functions of the electric pressure cooker are improved.

The present invention provides systems and apparatuses for dynamically controlling the operational modes of a single luminaire or a group of networked luminaires configured to deliver an illumination pattern having a decorative colored glow surrounding a central region of substantially uniform brightness. A control module for the luminaire is configured to drive three dimmable fluorescent ballasts, as well as a LED module. A variety of operational modes including different schemes for color mixing and color cycle control can be selected by a user and implemented by a microcontroller. A group of luminaires is connected in a standard communication protocol-based master-slave configuration, where the slave units respond to commands received from the master unit, and the last slave unit automatically engages terminating and biasing resistors for proper operation of the network.

The present invention facilitates serial communication by performing duty cycle correction. A duty cycle correction component 302 performs duty cycle corrections on a pair of differential sinusoidal signals according to a pair of adjustment signals and, as a result, generates a differential pair of square wave signals. A cross coupled buffer 306 buffers the differential pair of square wave signals and provides the buffered signals to a feedback circuit 304 that measures duty cycles of the signals and generates the pair of adjustment signals accordingly. The buffer 306 can also remove skew from the signals. In a transmitter 102, the buffered signals are also generally provided to a multiplexer 112 or encoder and in a receiver 106, the buffered signals are also generally provided to a sampling component 122.

A cycle control system for use with a boiler having a fluid therein and a method of monitoring a boiler to determine the presence of an adequate level of fluid therein. The cycle control system includes a timing circuit producing a burner control signal having alternating on and off states corresponding to on and off period timers to allow foam to settle so that a probe can accurately check the fluid level in the boiler. A burner monitor circuit monitors when a demand controller turns the burner on and off responsive to demand. The on-period timer is reset whenever the burner monitor circuit indicates the demand control circuit has turned off the burner for a length of time sufficient for the probe to accurately check the fluid level.

The bridgeless boost topology reduces the power dissipation, cost, and size of prior PFC systems by eliminating the intrinsic loss of the input rectifier bridge. Sensing of the input line voltage by the controller is unnecessary. The use of One Cycle Control (also known as Single Cycle Control) allows the Power Factor Correction function to be performed without complex rectification networks to obtain the AC line voltage reference. The use of bi-directional switches makes it possible to control inrush current (the startup over-current due to the charging of the output bulk capacitor), which allows elimination of over-current limiting devices and reduction of the diode surge capability requirements. Moving the boost inductor to the system input adds an additional filtering function, reducing the cost of input EMI filtering.

A switching power supply circuit, which can respond to a rapid and large change in a load quickly and stably and ensure a power supply output having a predetermined voltage, is provided. In the power supply circuit which supplies an input current to a load while switching the input current periodically and controls an output voltage Vo supplied to the load to a predetermined target value by controlling an ON / OFF time ratio (t1 / t2) of the switching variably, a control of the ON / OFF time ratio is performed for every one current supply cycle T independently.

In a self refresh period control circuit for controlling a refresh period of a semiconductor memory device in response to operating temperature of the device, a temperature sensor part generates a first period control signal in response to a self refresh start signal or self refresh completion signal, senses operating temperature of the semiconductor memory device in response to a clock signal generated by the self refresh start signal, and generates a corresponding second period control signal. A period magnification control part controls a self refresh period in response to the first and second period control signals. Accordingly, a refresh period characteristic change based on operating temperature, which is causable by an initial self refresh, is implemented.

A PSA system that purifies a feed gas, such as a reformate gas in fuel cell system. The PSA system includes a series of vessels housing an adsorbent or combination of adsorbents that adsorb carbon monoxide, carbon dioxide, nitrogen, water and methane in the reformate gas. The adsorbent vessels are connected to each other and a feed manifold, a product manifold and an exhaust manifold through suitable conduits, where the gas flows are controlled by a product rotating valve and feed rotating valve or a series of open / shut valves. A specialized PSA cycle controls the valves so that the vessels cycle through various stages of equalization, blow-down, purge, pressurization and production to purify the feed gas.

An interface can serve as a client-mainframe interface, enabling clients to develop applications without a need to understand mainframe processes and screen flows. Extended Tool Command Language (Tcl) can define services that can include a series of interactions with a mainframe system and service definitions can be added or updated on the interface during operation of the interface without disrupting processing. The service definitions can enable the interface to receive XML requests from a client, parse the XML requests, execute the service scripts to interact with the mainframe systems, generate the result in a XML format and send the XML file back to the client. Fundamental Mainframe Interactions (FMI) commands can interact with the mainframe systems and enable the specification of the XML structure of the request and response. The interface can provide efficient connection pooling management and connection life cycle control to improve the performance of the mainframe system interactions.

A cognitive radio communication apparatus and method to control a sensing operation. The cognitive radio communication apparatus includes an information receiver to receive channel state information associated with a channel occupancy state of a primary system from at least one sensing node of a secondary system; a sensing control unit to control a sensing period of the at least one sensing node according to a change pattern of the channel occupancy state, based on the channel state information; and a control information transmitter to transmit control information associated with the controlled sensing period to at least one member node of the secondary system.

A non-volatile semiconductor memory device includes: a cell array having electrically rewritable and non-volatile memory cells disposed at the respective intersections of word liens and bit lines intersecting each other; a row decoder circuit for selectively driving a word line of the cell array; a sense amplifier circuit disposed in communication with the cell array for data reading and writing; and a controller for executing sequence control of data write and erase, wherein in a data erase cycle controlled by the controller to erase memory cells disposed along at least one selected word line of the cell array, an adjacent / non-selected word line which is non-selected and adjacent to the selected word line in non-selected words lines in the cell array is precharged to a first erase-inhibition voltage, while the remaining non-selected word lines are precharged to a second erase-inhibition.

The invention relates to a system for recovering vehicle braking energy in urban rail transit, which comprises a first direct-current high-speed switch, a charging circuit unit, a super capacitor array, a discharging circuit unit, a variable pressure stabilizing unit, a second direct-current high-speed switch, a DC / AC converter, an alternating-current high-speed switch and an ACU auxiliary control unit; when the vehicle brakes, the system determines the storage energy in the supercapacitor array through the ACU auxiliary control unit and switch with a major loop in real time. Compared with the prior art, the system effectively utilizes energy and reuses the recovered energy in air conditioning or lighting, etc. inside the carriage; the system solves the network voltage fluctuation problem of the prior vehicle regenerative braking energy recovery, and forms an energy recovery closed-cycle control system of the vehicle itself as the main body; in addition, the system cannot impact the network voltage, but only absorb the energy of the self motor train unit; as the supercapacitor used by the system has small size, the management and control of the power source is easier, and the installation mode is more flexible.

A wireless network base station in communication with a mobile station enables the use of the reduced slot cycle mode by the mobile station. The base station comprises a reduced slot cycle controller that causes the base station to transmit an enhanced release order message to the mobile station to transition the mobile station from a traffic state to an idle state. The enhanced release order message comprises a first data field containing a first reduced slot cycle index (SCI) value to be used by the mobile station.

The portable micro PCR chip system prepared by MEMS or micro-model technique in bio-micro EMC system field comprises some trap-type reaction ponds for DNA amplification connected to liquid inlet / outlet by flow passages, an integrated micro-heater and sensor for amplifying DNA by the temperature cycle control system, a micro-pump and micro-valve on pond inlet to lead the DNA initiator and ponds insulation, and maybe a fluorescence excitation source, a detector and a fluorescence signal detection and analysis system for on-line detection on PCR product. This chip system provides a high-flux and fast DNA amplification means with low cost and well reliability.

A method of inflating, in alternating manner, inflatable cells of a support device for supporting an element to be supported is provided, which device is of the mattress type for supporting the body of a patient, said mattress being made up of cells that are inflatable with a fluid, in particular air, and having at least one zone made up of first and second series of inflatable cells referred to respectively as “first” cells and as “second” cells, the cells of each series communicating fluidly with one another and with inflation means, in which method alternating deflation and re-inflation cycles are performed during which each of said series of cells is deflated and then re-inflated in alternation and in succession, said first cells being deflated and then re-inflated simultaneously respectively with the re-inflation and with the deflation of said second cells, the alternating deflation and re-inflation of said first and second cells of the support device taking place in a cycle controlled by said inflation means being switched on / off, wherein the switching on / off of said inflation means is controlled as a function of the values of the pressures of the fluid measured inside said cells and of comparison of said values with at least one reference pressure value determined as a function of the morphology of the patient.

The present invention facilitates serial communication by performing duty cycle correction. A duty cycle correction component 302 performs duty cycle corrections on a pair of differential sinusoidal signals according to a pair of adjustment signals and, as a result, generates a differential pair of square wave signals. A cross coupled buffer 306 buffers the differential pair of square wave signals and provides the buffered signals to a feedback circuit 304 that measures duty cycles of the signals and generates the pair of adjustment signals accordingly. The buffer 306 can also remove skew from the signals. In a transmitter 102, the buffered signals are also generally provided to a multiplexer 112 or encoder and in a receiver 106, the buffered signals are also generally provided to a sampling component 122.

A semiconductor integrated circuit includes: a delay locked loop (DLL) configured to generate a DLL clock signal by delaying a source clock signal by a first delay time for obtaining a lock, wherein an update period of the DLL is controlled in response to an update period control signal after locking is completed; and an update period controller configured to generate the update period control signal based on a second delay time occurring in a loop path of the DLL in response to the source clock signal and a plurality of control signals provided from the DLL.

The present invention provides a method of accessing a quiescent mobile vehicle using a wireless communication system. At least one transmit power parameter of a vehicle communication device is determined. At least one sleep duration value is calculated based on the transmit power parameter. The vehicle communication device is placed into a quiescent state based on the sleep duration value. Programs and systems of using the method are also provided.

The invention discloses a double-tube Buck-Boost type PFC (Power Factor Correction) converter based on one-cycle control, a bridge rectification circuit is then connected with a BOCBB type double-tube Buck-Boost converter; one path of output signal of a PI (proportion integral) adjuster is sent to a noninverting input end of a comparator, the other path of output signal is superposed with a sampling signal of input current and then is sent to a resettable integrator, an output end of the resettable integrator is connected with an inverting input end of the comparator, an output end of the comparator is connected with an RS (remote sensing) trigger, one end of the RS trigger is connected with a reset switch of the resettable integrator, and a Q-end output signal of the RS trigger simultaneously drives two switching tubes of the BOCBB type double-tube Buck-Boost converter after passing by a driving circuit. The converter disclosed by the invention not only can realize output voltage raising and reducing control, but also can improve a network side power factor, reduces the distortion factor of network entry current, has the advantages of simple structure, high system efficiency and the like and is convenient to control.

An internal voltage generating circuit detects a level of a back bias voltage or a pumping voltage and controls a period of an oscillating signal based on the result of counting timing when the detected voltage is lower than a reference voltage. The internal voltage generating circuit includes a back bias / pumping voltage detector for detecting a level difference between a back bias / pumping voltage and a reference voltage, a period controller for controlling a period of an oscillating signal based on the detection result of the back bias / pumping voltage detector, and a pumping unit for pumping the back bias / pumping voltage according to an activation period of the oscillating signal.

A hybrid switching circuit includes first and second switching devices containing first and second unequal bandgap semiconductor materials. These switching devices, which support parallel conduction in response to first and second control signals, are three or more terminal switching devices of different type. For example, the first switching device may be a three or more terminal wide bandgap switching device selected from a group consisting of JFETs, IGFETs and high electron mobility transistors HEMTs, and the second switching device may be a Si-IGBT. A control circuit is also provided, which is configured to drive the first and second switching devices with first and second periodic control signals having first and second unequal duty cycles. The first duty cycle may be greater than the second duty cycle and the active phases of the second periodic control signal may occur exclusively within the active phases of the first periodic control signal.