1179 results about "Structure control" patented technology

A memory array having memory cells comprising a diode and a phase change material is reliably programmed by maintaining all unselected memory cells in a reverse biased state. Thus leakage is low and assurance is high that no unselected memory cells are disturbed. In order to avoid disturbing unselected memory cells during sequential writing, previously selected word and bit lines are brought to their unselected voltages before new bit lines and word lines are selected. A modified current mirror structure controls state switching of the phase change material.

A stacked non-volatile memory device uses amorphous silicon based thin film transistors stacked vertically. Each layer of transistors or cells is formed from a deposited a-Si channel region layer having a predetermined concentration of carbon to form a carbon rich silicon film or silicon carbide film, depending on the carbon content. The dielectric stack is formed over the channel region layer. In one embodiment, the dielectric stack is an ONO structure. The control gate is formed over the dielectric stack. This structure is repeated vertically to form the stacked structure. In one embodiment, the carbon content of the channel region layer is reduced for each subsequently formed layer.

Well operating elements are described, one embodiment comprising a first component that is substantially non-dissolvable when exposed to a selected wellbore environment and a second component that is soluble in the selected wellbore environment and whose rate and/or location of dissolution is at least partially controlled by structure of the first component. A second embodiment includes the component that is soluble in the selected wellbore environment, and one or more exposure holes or passages in the soluble component to control its solubility. The second embodiment may or may not include a substantially non-dissolvable component. Methods of using the well operating elements in oilfield operations are also described. This abstract allows a searcher or other reader to quickly ascertain the subject matter of the disclosure. It will not be used to interpret or limit the scope or meaning of the claims.

A display apparatus such as liquid crystal displays (LCD) or plasma displays or any other type of thin or flat display monitor apparatus having multiple display screens. The multiple display screens either consisting of double sided display screens, being slidingly engaged in a monitor housing having rails or being attached by a multiple axis pivot structure. The screens can be either controlled by a single control structure or can be independently controlled by multiple control structure where multiple users can work on each respective screen independently from one another.

In one embodiment the present invention provides a wireless communication system for medical sensor data. This communications system includes a portable unit that connects to a wireless sensor and a monitor unit that connects to a sensor monitor. Once activated, the units will self organize into a wireless communication structure controlled by the portable unit. As other pairs of units activate, they can self-organize their transmissions by joining an existing network or by creating new networks.

In one embodiment, a method includes receiving a first identifier and a private key after a network device has been included in a data center switch fabric control plane, authenticating the network device based on the private key, sending a second identifier to the network device, and sending a control signal to the network device based on the second identifier. The first identifier is associated with the network device and unique within a segment of the data center switch fabric control plane. The second identifier is unique within the segment of the data center switch fabric control plane.

Systems, methods, and devices provide a vehicle, such as an aircraft, with rotors configured to function as a tri-copter for vertical takeoff and landing (“VTOL”) and a fixed-wing vehicle for forward flight. One rotor may be mounted at a front of the vehicle fuselage on a hinged structure controlled by an actuator to tilt from horizontal to vertical positions. Two additional rotors may be mounted on the horizontal surface of the vehicle tail structure with rotor axes oriented vertically to the fuselage. For forward flight of the vehicle, the front rotor may be rotated down such that the front rotor axis may be oriented horizontally along the fuselage and the front rotor may act as a propeller. For vertical flight, the front rotor may be rotated up such that the front rotor axis may be oriented vertically to the fuselage, while the tail rotors may be activated.

The present invention relates to a method, a system and an apparatus for implementing bandwidth allocation and scheduling management based on a relay station. A mapping information unit for controlling a RS (MAP_RS) is set in a frame structure of the physical layer of a BS and an extended frame structure of the physical layer of a BS is constructed in a frame structure of the BS physical layer. The BS constructs a mapping information message MAP_RS for controlling the relay station RS base on the extended frame structure of the BS physical layer, and performs bandwidth allocation and scheduling management of a communication channel of the RS by the RS according to the MAP_RS message. Through the present invention, a bandwidth allocation is implemented mainly at the BS, and a service scheduling is implemented mainly at the BS. The RS only performs an uplink or downlink scheduling of the RS passively. The complexity of the RS reduced effectively. The Multi-hop relay problem is solved using a bandwidth request relay and a bandwidth allocation relay, without introducing any complex technologies and procedures of the bandwidth request, the bandwidth allocation and the scheduling management. The complexity of the BWA relay network is simplified.

An electro-mechanical structure which controls the movement of an optical device coupled thereto is disclosed. Both the electro-mechanical structure and the optical device are disposed on a substrate surface. The electro-mechanical structure controls the movement of the optical device by first lifting the optical device a predetermined distance above the plane of the substrate surface. Thereafter, the lifted optical device is moveable relative to the plane of the substrate surface in response to an electrostatic field generated between the electro-mechanical structure and the substrate.

A surgical implant for adhering two portions of tissue together with a polymer adhesive is disclosed. The surgical implant has a matrix structure with one or more layers and a plurality of holes for tissue growth therethrough. The matrix structure controls placement of the adhesive to minimize adhesive area and maximize tissue regrowth areas. In addition, the surgical implant can include drugs and adhesive initiators, and can include multiple layers of structure with any combination of holes, drugs, adhesives and adhesive initiators within. Additionally, the surgical implant can be surrounded by a rapidly dissolving pouch to prevent unwanted polymerization of the adhesive prior to placement in the body.

The invention provides a pixel circuit, a driving method of a pixel circuit, an organic light emitting display panel and a display device. Through the arrangement of a touch detection module and a display driving module realizing the multiplexing of a first scanning line and a second scanning line, the influence of the threshold value of a transistor on light emitting driving signals can be eliminated, the brightness uniformity of the organic light emitting display panel is improved, and the image display effect of the display device is improved. Meanwhile, the pixel circuit provided by the embodiment of the invention has the advantages that through adopting the arrangement of the circuit structure controlling the signal multiplexing, the display driving is realized, and meanwhile, the touch control detection can be realized, so the high-efficiency integration of the display driving and the touch control detection can be realized.

The invention discloses an isolated cell type silicon rubber foam material and the manufacture method and the application. The feature is that it is made up of 100 portions silicone rubber, 15-80 portions reinforcing agent, 2-15 portions constitution controller, 3-15 portions foaming agent, 0-3 portions blowing promoter, and 0-4 portions coupling assistant agent, after taking radiation by electron beam or gama radiation, the silicon rubber takes coupling reaction, and the radiation dose is 5-20KGy. Decomposing foaming by heating, the silicon rubber could immediately taking electron beam or gama radiation to take the second radiation coupling, the radiation dose is 20-50KGy to improve the complex performance of the silicon rubber foam material. The invention could be used as sealing, damping, insulating, sound insulating and thermal insulating material.

The invention discloses a compound control method based on a vector control system of a permanent magnet synchronous motor. The method comprises the following steps: converting a three-phase current of the permanent magnet synchronous motor into equivalent currents on a straight shaft and a crossed shaft by utilizing a vector conversion principle; further linearly decoupling the mathematical models of shafts d and q of the permanent magnet synchronous motor by using the method of id=0; and using fractional order PIgammaDmu control and sliding mode variable structure compound control, wherein the fractional order PIgammaDmu control and the sliding mode variable structure compound control can be used for performing joint cross-feedback control on the speed ring through a variable weighting factor alpha. The compound control method based on a vector control system of a permanent magnet synchronous motor, provided by the invention, has the advantages of both the fractional order PIgammaDmu control and the sliding mode variable structure compound control during the control of the speed ring, and the favorable factors are maximized while the unfavorable factors are minimized. Compared with the traditional PID (proportional-integral derivative) control, the fractional order PIgammaDmu control has a widened control scope, thereby more flexibly matching the sliding mode variable structure to realize the compound control to the permanent magnet synchronous motor.

A movable control panel for a patient support is provided. The patient support includes a support structure which is movable between a raised position and a lowered position relative to a patient support. A controller is coupled to the support structure for movement between a deployed position and a stored position. A mechanism for coupling the controller to the support structure is also provided. The controller includes control switches that are operable to adjust a position of the patient support. The coupling mechanism is operable to move the controller between the deployed position and the stored position in response to movement of the support structure between the raised position and the lowered position, respectively.