72results about How to "Power on safely" patented technology

A power transmitting device includes a power transmitting circuit that converts second DC power input from a DC power supply to AC power, a power transmitting antenna and a control circuit that receives a voltage value of the first DC power from the power receiving device. The control circuit changes a frequency of the AC power that is transmitted to the power receiving antenna, detects, from the received voltage values, a first frequency corresponding to a local minimum value of the voltage values and a second frequency corresponding to the voltage value that takes a local maximum value at a frequency higher than the first frequency, and sets the frequency of the AC power transmitted to the power receiving antenna to a frequency between the first frequency and the second frequency.

A method and apparatus for repeated communication sessions between a sender (e.g., RFID tag) and a receiver (RFID reader) that employs a proactive information security scheme is based on the assumption that the information exchanged during at least one of every n successive communication sessions is not exposed to an adversary. The sender and the receiver maintain a vector of n entries that is repeatedly refreshed by pairwise XORING entries, with a new vector of n entries that is randomly chosen by the sender and sent to the receiver as a part of each communication session. Also, a computational secure scheme based on the information secure scheme is employed to ensure that even in the case that the adversary listens to all the information exchanges, the communication between the sender and the receiver is secure. In particular, the scheme can be used in the domain of remote controls (e.g., for cars).

An electronic endoscope apparatus has the structure that an electronic scope is detachably connected to a processor unit. This processor unit comprises image storage memory which stores an object image imaged by a CCD, a signal processing circuit for outputting this image to external equipment, a scope power-off operation switch located separately from a main-power switch are provided. Only a scope power supply unit which supplies power to the electronic scope is turned off by this scope power-off switch. At this time, when a CCD drive pulse is being outputted or when communication between with the electronic scope is being performed, the outputting of this CCD drive pulse or the communication is stopped, and thereafter,the scope power supply unit is turned off. Thereby, the electronic scope can be removed from the processor unit which is outputting an image signal.

A method, device and system for authenticating gateway, node and server are provided in this invention. The node receives a message sent by a gateway, wherein the message comprises a number T3 shared by the gateway and a server, and a gateway identification. The node encrypts data with a key K1 shared by the node and the server, the data including T3, the gateway identification, and a random number T1 generated by the node, and then sends the encrypted data and a node identification to the server through the gateway. The node decrypts data encrypted by the server and forwarded by the gateway with the key, determines that the server is a valid server according to a T1-related number obtained by decryption, and establishes a security channel with the gateway according to a new key obtained through the decryption.

A rugged braced bag for securing hand tools and other equipment to a ladder, scaffold, or mechanical lift within easy reach of a worker. The bag has wide flexible support band with a rigid distal clip configured for engagement with a slot in one of its upstanding walls. Alternatively, the bag can be secured by the support band and clip engaging a ladder top, or the band encircling a ladder rung or horizontally-extending bar with the clip inserted into the slot. The bag has a shoulder strap and release handle used for raising the bag and ready release of the clip from its engaged position. Optionally, the bag can have compartments, pockets, and/or a removable liner. Applications can include, but are not limited to, use by carpenters, painters, electricians, plumbers, homeowners, and anyone needing to use tools and equipment while on a ladder, scaffold, lift, or other raised support structure.

A Rotating Flexible Wing Power System for extracting low-cost electricity and mechanical energy from moving fluids including wind and water currents. The Rotating Flexible Wing Power System generally includes a single long curved flexible wing supported at its ends so that it can rotate or swing around a longitudinal axis that intersects the endpoints of the wing. Rotation mechanisms are located at each end of the wing allowing the wing to rotate freely about its longitudinal axis. Lift forces on the wing resulting from the moving fluid cause the wing to start and continue rotating. These lift forces also create oscillating longitudinal forces in the flexible wing which move the ends of the flexible wing towards and away from each other. This movement may be harnessed to drive a generator or pumping device connected to the flexible wing. One or both ends of the wing can be connected to tethers so that the overall length of the flexible wing is increased. A force transfer member can be used to extend the reach of the system so that energy can be extracted from the flexible wing to a generator or pumping device positioned at a convenient distant location.

Buoyancy force can provide a large lifting force with little energy, but it requires a control system. In the present invention position control system is designed and implemented to keep the body with the load at a reference position or to control speed of ascent of the load, in the present invention the designed combination of buoyancy with ascent tuning control parameters operated repeatedly whereby to generate AC electrical power with aid of buoyancy in pool, lake and ocean continuously, the present invention is a buoyancy and gravity control mechanism which comprised of rigid unit to a fix size or collapsible accordion vinyl skirt bellow capsule chamber, therefore several methods that can be developed to take advantage to overcome the enormous torque at the gearbox to turn the generator to generate AC current for rural villages large business and supply the grid 24/7 continuously.

FIG. (1) and FIG. (2) show a top and bottom perspective of the device. Insulated Hook (12) is insulated and will be made of but not limited to, plastic, with a female screw receiving end adaptable to a standard piece of all-thread or install screw (14). Install screw ( )14 is a standard piece of all-thread cut to a desired length and will have hook (12) screwed on one end. The other end of install screw (14) will screw into hanger nut (16). Hanger nut (16) will be attached securely, for example by welding, to the bottom of body (18). The body (18) will envelope the adjust nut (20) and the adjust screw (22). Adjust screw (22) will be threaded into adjust nut (20) into and through the body (18). Body (18) will also house the toggle joint or pivot axle (24). Nose (28) will be attached to the body (18) by pivot axle (24). Wrapped around pivot axle (24) and anchored to the body (18) are the return springs (26a) and (26b). The return springs (26a) and (26b) will be pre-tensioned and attached also to the nose (28).

In an additional embodiment right nose (30) and left nose (32) are connected to center nose (28) by connector axle (34). This embodiment will stabilize and increase ease of install of the device.

FIGS. 1-9 are only examples of the possibilities of the hanger. And the device should not be limited to the above illustrated forms. Other applications and designs may become apparent as the above description, operation, and the drawings attached are studied by those in safety, manufacturing, construction, and related fields.

A mobile vehicle wirelessly receives AC power from a power transmission device including first and second power transmission electrodes arranged along a road surface. The mobile vehicle includes: a sensor that detects an obstacle located at least either on a route of the mobile vehicle or under the mobile vehicle; a first power reception electrode that forms electric field coupling with the first power transmission electrode when facing the first power transmission electrode; a second power reception electrode that forms electric field coupling with the second power transmission electrode when facing the second power transmission electrode; an actuator that moves at least the part of the first power reception electrode in a direction of gravity; and a control circuit that controls the actuator based on a result of detection by the sensor to avoid contact between the first power reception electrode and the obstacle.

A power lock device for safe power output/input is a control lock composed of coding devices, decoding devices and electromagnetic switches. The coded signal will attach to the power transmitting line and keeps on transmitting. After discerning that the coded signal is correct, the decoding device turns on electromagnetic switches and conducts power to transmit. If the code is not correct, the decoding device uses the electromagnetic switches to cut off power and achieves the function of power control.

A vehicle display device includes a first display unit disposed in a first portion of a vehicle and including a first display panel to display a first image and a first power supply to supply a first power supply voltage to the first display panel, the first power supply configured to detect an abnormality of a signal output to the first display panel to generate a first shut-down control signal; a second display unit disposed in a second portion of the vehicle and including a second display panel to display a second image and a second power supply to supply a second power supply voltage to the second display panel, the second power supply configured to detect an abnormality of a signal output to the second display panel to generate a second shut-down control signal; a third display unit disposed in a third portion of the vehicle and configured to display a third image or at least one of the first and second images; and a controller to receive first image data corresponding to the first image, second image data corresponding to the second image, and third image data corresponding to the third image to provide the received first image data, the received second image data, and the received third image data to the first display unit, the second display unit, and the third display unit, respectively. The controller is configured to supply the first image data to the third display unit in response to the first shut-down control signal, and to supply the second image data to the third display unit in response to the second shut-down control signal.

A connector includes a first connector and a second connector configured to engage with the first connector to establish electrical connection, wherein the first connector includes a first contact terminal, and the second connector includes: a second contact terminal configured to come in contact with the first contact terminal; a switch part connected to the second contact terminal and including a fixed part and a movable part; and a movable member capable of pushing the movable part toward the fixed part, wherein the movable member is pushed by the first connector when the first connector engages with the second connector, and the movable member pushes the movable part toward the fixed part to bring the movable part in contact with the fixed part.

The present invention provides a system for reducing row periphery power consumption in a semiconductor memory device, particularly during sleep mode operation. A memory device (100) according to the present invention has a row (106) of memory cells and driver circuitry (102) preceding the row of memory cells. The present invention provides an intervention circuit (114) instantiated within the driver circuitry proximal to the row of memory cells. The intervention circuit is operated to hold the row of memory cells at a desired state, while the driver circuitry (108, 110) preceding the intervention circuit is powered down.

A battery controller buffers a higher voltage provided by a primary cell in order to charge a secondary cell that operates at a lower voltage. The battery controller includes a storage device that is charged by the primary cell. When the voltage of the storage device reaches a threshold, the battery controller conducts the stored charge into the secondary cell while isolating the secondary cell from the primary cell. The secondary cell, when charged, powers a node that operates with a low voltage.

The router device acquires detected temperature T from a thermistor provided inside the battery box containing secondary battery that provide the power supply, and if the detected temperature T is not smaller than a threshold value Th1, produces flashing display of an LED to alert the user. If the detected temperature T is not smaller than a threshold value Th2 additionally, supply of power to the CPU of the router device is subsequently interrupted. In this way, in a router device powered by a secondary battery, diminished functionality of the secondary battery due to elevated temperature may be prevented.

A female connector for supplying received power has a recess, terminals including power terminals for supplying the power, a locking mechanism to lock a male connector that is inserted into the recess in a mated state in response to insertion of the male connector into the recess, and a switching mechanism to supply the received power to the power terminals in an ON state and to insulate the power terminals from the received power in an OFF state. The switching mechanism is permitted to make a transition to the ON state only when the locking mechanism is locking the male connector in the mated state.

The present invention relates to a method for operating a terminal device (10) of a communication system. The terminal device (10) comprises a capturing device (13, 14) for capturing media. The terminal device (10) is configured to transmit the captured media via a data communication connection (50-52) of the communication system. According to the method, a transmission quality of the data communication connection (50-52) is determined and a capturing quality of the capturing device (13, 14) is automatically set depending on the determined transmission quality.

The invention provides a graphene heating plate which comprises an outer plate layer, a heat conduction connecting layer, a graphene heating layer, a heat insulation layer, a waterproof layer and a conductive frame, most of graphene serves as a heating foundation to serve as a composite plate, a spliced electrifying structure is adopted, the electrifying is safe, the replacement is convenient whenthe graphene heating plate is damaged, the graphene is graphite wires, and the situation that the graphene is heated to expand is avoided.