77 results about "Collapse mode" patented technology

A medical device for treating a heart valve insufficiency, with an endoprosthesis which can be introduced into a patient's body and expanded to secure a heart valve prosthesis in the patient's aorta with a catheter. In an embodiment, the endoprosthesis has a plurality of positioning arches configured to be positioned with respect to a patient's aorta and a plurality of retaining arches to support a heart valve prosthesis. The endoprosthesis includes a collapsed mode during the process of introducing it into the patient's body and an expanded mode when it is implanted. The endoprosthesis may be introduced into a patient's body and expanded via a catheter. In an embodiment, the catheter has first and second slide mechanisms configured to independently manipulate first and second sleeve elements to sequentially expand the endoprosthesis from the collapsed mode to the expanded mode.

Video clips are depicted both in an overall layer and in a set of individual tracks, or rows. The user can cause the display to be expanded or collapsed, as desired, so as to reveal or hide the individual tracks. Video clips are fully editable in either the expanded or collapsed viewing modes. When the collapsed mode is in effect, bars representing individual video clips are still visible, and can be individually selected and manipulated. When the expanded mode is in effect, separate tracks are shown for each individual clip, but the overall layer remains visible, and the individual video clips also remain visible, selectable, and manipulable within the overall layer.

A medical device for treating a heart valve insufficiency, with an endoprosthesis which can be introduced into a patient's body and expanded to secure a heart valve prosthesis in the patient's aorta with a catheter. In an embodiment, the endoprosthesis has a plurality of positioning arches configured to be positioned with respect to a patient's aorta and a plurality of retaining arches to support a heart valve prosthesis. The endoprosthesis includes a collapsed mode during the process of introducing it into the patient's body and an expanded mode when it is implanted. The endoprosthesis may be introduced into a patient's body and expanded via a catheter. In an embodiment, the catheter has first and second slide mechanisms configured to independently manipulate first and second sleeve elements to sequentially expand the endoprosthesis from the collapsed mode to the expanded mode.

A capacitive membrane ultrasonic transducer system and method of operation is described. The transducers are operated in the collapsed mode. In this mode the membrane is first subjected to a voltage higher than the collapse voltage, therefore initially collapsing the membrane onto the substrate. Then, a bias voltage is applied having an amplitude between the collapse and snapback voltages. At this bias voltage, the center of the membrane still contacts the substrate. By applying driving AC voltage or voltage pulses harmonic membrane motion is obtained in a circular ring concentric to the center. In this regime, between collapse and snapback, the cMUT has a higher eletromechanical coupling efficiency than it has when it is operated in the conventional pre-collapse mode.

A member of a rigid flexible elastic material, the member including a body portion and an aperture portion with the member adapted for delivery through an axial longitudinal channel of a percutaneous delivery subsystem, the aperture portion including an expanded mode having a lateral dimension greater than an inner diameter of the channel when the aperture portion extends outside the channel and a collapsed mode wherein the lateral dimension is not greater than the inner diameter of the channel when the aperture portion is within the channel, the channel including a first axial opening and a second axial opening with the aperture portion transitioning from the expanded mode to the collapsed mode when inserted into the openings and the aperture transitioning from the collapsed mode to the expanded mode when exiting from the openings.

In the invention, a new tunnel surrounding-rock slip crack face recognition method based on curves of settling tanks at different depths is established through correspondence relationships between widths of the settling tanks at the different formation depths and maximum potential failure points, a numerical analysis method of discrete media is provided to simulate a collapse mechanism of loose shallow-buried-tunnel surrounding rock, finally, comparison with a general numerical analysis method is carried out on the basis of engineering practice, the rationality and the applicability of the method of the invention are verified, and a set of scientific analysis methods are provided for identification of collapse failure modes of loose shallow-buried-tunnel surrounding rock, support structure design, surrounding-rock stability evaluation and the like.

A motorized cart, including: a collapsible frame with a collapsible storage compartment, a front wheel, and two rear wheels rotating about a single axis. The frame has a folding support platform including hingedly connected first and second portions. The first portion rotatably connects at a front of the frame, and the second portion rotatably connects to a rear of the frame. A drive compartment houses a battery, a drive controller, and a motor for driving a rear wheel, and is positioned on the frame to position the battery, the drive controller, and the motor below and forward of the axis in an expanded, upright mode, thereby positioning a cart center of gravity forward of the axis. The drive compartment is shaped and positioned on the frame to: permit the collapsing of the storage compartment and the frame to a collapsed mode; provide clearance for the front wheel during transition between the collapsed mode and the expanded, upright mode; and substantially vertically align the cart center of gravity with the axis in a tilted mode, operating only on the two rear wheels.

A tubular system arranged in a wellbore, having an outer tube extending into the wellbore and a wall with at least one section of reduced bending stiffness, each section defining a hinge allowing the outer tube to move between a collapsed mode and an expanded mode. An inner tube extends into the outer tube and has a wall with at least one section of reduced bending stiffness, each section defining a hinge allowing the inner tube to move between a collapsed mode and an expanded mode. With the tubes in their respective expanded modes, the inner tube supports the outer tube and is oriented in the outer tube such that each hinge of the inner tube is circumferentially displaced from each hinge of the outer tube.

An ultrasonic diagnostic imaging system comprises a CMUT transducer probe with an array (10′) of CMUT cells either of the same or variable diameters operated in a conventional mode during ultrasonic signal reception and a collapsed mode during ultrasonic signal transmission. The frequency response to the CMUT cells is tailored for different clinical applications or continuously varied during echo reception by decreasing the DC bias voltage for the CMUT cells for lower frequency clinical applications, increasing the DC bias voltage for higher frequency clinical applications, or continuously decreasing the DC bias voltage as echoes are received to track the information frequency composition of the returning echo signals.

A collapsible portable shelter unit when in the collapsed mode is light and compact to make transport and storage convenient, but when opened provides an enclosed space that can be used for various purposes, which has an integrated high strength structured frame by the action of the interlocking extrusions which also provide resistance to water and wind infiltration. As needed, exterior windows and doors, air conditioning, electrical supply and other customization as required by the users' needs.

A novel portable refrigerator is disclosed where the refrigerator is collapsible for storage, comprising a foldable panels for a top, sidewalls, a front, a rear and where all of the panels are attached to a base. One of the panels further includes a chiller circuit that is capable of recirculating the air contained with the refrigerator and cooling it to a selected set point. When in the collapsed mode, the collapsible refrigerator is securable and can be easily handled by the user and stored in a convenient manner.

Current pole / mast mounted photovoltaic systems rely on gravity to lower the panel down the mast. The energy derived is typically conducted along a coiled conductor that expands or collapses like a spring inside the hollow mast as the movable device, with the solar panel attached, is raised or lowered for maintenance. Due to the large size and stiffness of the coiled conductor, especially in cold weather, the weight of the movable device may not be sufficient to cause the panel to descend when tension on the supporting cable is released. We have developed a method of pulling the sleeve / ring down the mast / pole as well as up. Over long periods of non-use, the sleeve can freeze in position. This new system aids in freeing it up and is also useful when there is un-even side loading on the sleeve. A winch driven chain or cable, attached to the movable device, extending upward to a top roller then internally downward to the winch and then externally extending back up to the movable device, accomplishes this task. A further improvement is a plurality of vertical guide wires and guides attached to the conductor coils that prevent the coils from overlapping in the collapsing mode. An additional improvement is taught wherein the coiled conductor is replaced by a set of conducting rails with a shorter conductor attached to the solar panel.

A capacitive sensor is configured for collapsed mode, e.g. for measuring sound or pressure, wherein the moveable element is partitioned into smaller sections. The capacitive sensor provides increased signal to noise ratio.

A motorized cart, including: a collapsible frame with a collapsible storage compartment, a front wheel, and two rear wheels rotating about a single axis. The frame has a folding support platform including hingedly connected first and second portions. The first portion rotatably connects at a front of the frame, and the second portion rotatably connects to a rear of the frame. A drive compartment houses a battery, a drive controller, and a motor for driving a rear wheel, and is positioned on the frame to position the battery, the drive controller, and the motor below and forward of the axis in an expanded, upright mode, thereby positioning a cart center of gravity forward of the axis. The drive compartment is shaped and positioned on the frame to: permit the collapsing of the storage compartment and the frame to a collapsed mode; provide clearance for the front wheel during transition between the collapsed mode and the expanded, upright mode; and substantially vertically align the cart center of gravity with the axis in a tilted mode, operating only on the two rear wheels.

A member of a rigid flexible elastic material, the member including a body portion and an aperture portion with the member adapted for delivery through an axial longitudinal channel of a percutaneous delivery subsystem, the aperture portion including an expanded mode having a lateral dimension greater than an inner diameter of the channel when the aperture portion extends outside the channel and a collapsed mode wherein the lateral dimension is not greater than the inner diameter of the channel when the aperture portion is within the channel, the channel including a first axial opening and a second axial opening with the aperture portion transitioning from the expanded mode to the collapsed mode when inserted into the openings and the aperture transitioning from the collapsed mode to the expanded mode when exiting from the openings.

A microphone and a method for operating a Microphone are disclosed. In an embodiment the microphone includes a transducer and a mode controller. The microphone has a normal operating mode (MO) and a collapse mode (M1). The mode controller switches to the collapse mode (M1) when an output signal of the transducer reaches or exceeds a predefined threshold value and switches to the normal operating mode (MO) when the output signal reaches or falls below a predefined further threshold value (S1).

A motorized cart, including: a collapsible frame; a handle and a collapsible storage compartment connected to the frame; and at least three wheels, including a front wheel and two rear wheels disposed at a rear of the frame for rotating about a single axis. The cart also includes a drive compartment housing a battery, a drive controller, and at least one motor electrically connected to the battery and the drive controller for driving at least one of the rear wheels. The drive compartment is positioned on the frame to position the battery, the drive controller, and the motor below and forward of the rear wheel rotation axis when the cart is in an expanded, upright mode, thereby positioning a center of gravity of the cart forward of the rear wheel rotation axis to enhance stability. The drive compartment is shaped and positioned on the frame to not impede the collapsing of the storage compartment and the frame to a collapsed mode for compact storage of the cart, and to provide clearance for the at least one front wheel during transition between the collapsed mode and the expanded, upright mode. The drive compartment is positioned on the frame to substantially vertically align the center of gravity of the cart with the rear wheel rotation axis in a tilted mode, in which the cart operates only on the two rear wheels.

The invention is a portable refrigerator (10) that may transition between a functional mode for use in the cold storage of food and drinks and a collapsed mode for transportation. Wheels (207) with a handle (52) opposite provide the method of transportation. The food storage space is controllably cooled by a chiller circuit (60), which may be powered by one or more solar panels (10). The device includes USB and A / C outlets (202,206) so that the device can be also be used as a power source. It may also include a lockable latch (203) to keep the refrigerator space closed. It may also include a u-shaped bar (200) on the outside so that the device can be secured to a fixed object.

The invention provides a differential WGAN based network security situation prediction method. The GAN (Generative adversarial network) is used to simulate the development process of situation, and the situation is predicted in the time dimension. A loss function with the Wasserstein distance as the GAN is used to solve the problem that the GAN is hard to train and instable in collapse mode and gradient, and a differential item is added to the loss function to improve the classification precision of a situation value. The stability of the differential WGAN network is proved. According to experimental results and analysis, the mechanism has advantages in the aspects in convergence, prediction precision and complexity compared with other mechanisms.

A method and apparatus is disclosed to charge a battery. A wall adapter may provide a power to a battery charger in a collapsed mode of operation. In the collapsed mode of operation, the wall adapter may provide the battery charger with a collapsed power. The battery charger may provide a charging current and / or voltage in a constant current charge mode of operation and / or a constant voltage charge mode of operation using the collapsed power. When operating in the constant current charge mode of operation, the battery charger provides the charging current and / or voltage having a constant current until the voltage of the battery is less than or substantially equal to a constant charge voltage. Alternatively, when operating in the constant voltage charge mode of operation, the battery provides the charging current and / or voltage having a constant voltage until the voltage of the battery is less than or substantially equal to a float voltage.

A collapsible keyboard comprises a connection part, a top cover pivoted to the connection part, a first key assembly connected to the connection part and movable between a first position and a second position, and a second key assembly pivoted to the first key assembly. The first key assembly is located at the first position when the collapsible keyboard is in an operating mode, and the second key assembly is located between the first key assembly and the top cover and the first key assembly is located at the second position when the collapsible keyboard is in a collapsed mode.

A collapsible portable shelter unit when in the collapsed mode is light and compact to make transport and storage convenient, but when opened provides an enclosed space that can be used for various purposes, which has an integrated high strength structured frame by the action of the interlocking extrusions which also provide resistance to water and wind infiltration. As needed, exterior windows and doors, air conditioning, electrical supply and other customization as required by the users' needs.

Video clips are depicted both in an overall layer and in a set of individual tracks, or rows. The user can cause the display to be expanded or collapsed, as desired, so as to reveal or hide the individual tracks. Video clips are fully editable in either the expanded or collapsed viewing modes. When the collapsed mode is in effect, bars representing individual video clips are still visible, and can be individually selected and manipulated. When the expanded mode is in effect, separate tracks are shown for each individual clip, but the overall layer remains visible, and the individual video clips also remain visible, selectable, and manipulable within the overall layer.

An ultrasonic diagnostic imaging system comprises a CMUT transducer probe with an array (10') of CMUT cells either of the same or variable diameters operated in a conventional mode during ultrasonic signal reception and a collapsed mode during ultrasonic signal transmission. The frequency response to the CMUT cells is tailored for different clinical applications or continuously varied during echo reception by decreasing the DC bias voltage for the CMUT cells for lower frequency clinical applications, increasing the DC bias voltage for higher frequency clinical applications, or continuously decreasing the DC bias voltage as echoes are received to track the information frequency composition of the returning echo signals.

A collapsible and portable cleaning unit. The unit is preferably designed to provide a private shower experience that is comparable to a shower experience for a permanent shower installed at a location, such as a bathroom in a dwelling. This inventive shower unit is designed to be fully portable in a self contained collapsed mode that is substantially contained within the overall footprint of the unit. The unit includes a substantial self supporting base structure and a cap that secures to the base structure to protect the internal components and seals for storage. This unit includes a supportive base that has a pan for directing and containing water from the shower. The unit is designed to provide height clearance that is substantially comparable to showers that are in permanent facilities and / or dwellings.

In a stabilized laser system, an output of a desired wavelength is generated. Each of a plurality of n lasers, which, while emitting light and having a preselected portion thereof fed back thereto, causes the fed back portion to be amplified and shifted in wavelength in a first direction which is spaced apart from the center wavelength of the feedback signal. A feedback stabilization arrangement is coupled to output ports of the plurality of n lasers for generating a feedback signal having a wavelength spectrum peaking at a wavelength shifted in an opposite direction to the first direction generated by the lasers in response to the feedback signal so as to provide an output signal at the output of the stabilized laser system having a wavelength spectrum that peaks essentially at the desired wavelength. A reflector is located at a predetermined signal round-trip time delay distance from the feedback stabilization arrangement. The reflector receives the output signal from the feedback stabilization arrangement and passes a first portion thereof therethrough, and reflects a remaining second portion back to the feedback stabilization arrangement as a secondary feedback signal that contributes to each of the plurality of n laser sources being set in a stable coherence collapse mode.

The invention relates to a rock stratum bidirectional displacement monitoring device which comprises an anchor head and a reading device. The reading device comprises a first spring, a second spring and scales for monitoring stretching quantities of the first spring and the second spring, wherein the first spring and the second spring do not interfere with each other. The anchor head is connected with a first lead connected with the movable end of the first spring; the first lead is provided with a friction buckle; a friction pair is formed by the friction buckle and the first lead; and the friction buckle is connected with a second lead connected with the movable end of the second spring. The invention also relates to a rock stratum bidirectional displacement monitoring method. According to the invention, by simulating the stretching quantity of the first spring, a total displacement generated by a positive displacement of a abscission layer of a rock stratum and a squeezing density negative displacement is monitored; by simulating the stretching quantity of the second spring, a negative displacement of the rock stratum is monitored; the technical difficult problem that a mechanical displacement monitoring device can only be used for monitoring a unidirectional displacement is broken through; and the rock stratum bidirectional displacement monitoring device and the rock stratum bidirectional displacement monitoring method are simple and convenient to implement, provide accurate and reliable field data for analysis on the activity rhythm, the collapse mode and the like of the rock stratum and have good popularization and application prospects. The rock stratum bidirectional displacement monitoring device and the rock stratum bidirectional displacement monitoring method can be applied to geotechnical engineering.