38results about How to "Propagation delay" patented technology

An enhanced wafer level chip scale packaging (WLCSP) copper electrode post is described having one or more pins that protrude from the top of the electrode post. When the solder ball is soldered onto the post, the pins are encapsulated within the solder material. The pins not only add shear strength to the soldered joint between the solder ball and the electrode post but also create a more reliable electrical connection due to the increased surface area between the electrode post/pin combination and the solder ball. Moreover, creating an irregularly shaped solder joint retards the propagation of cracks that may form in the intermetal compounds (IMC) layer formed at the solder joint.

A sandwich element for sound-absorbing inner cladding of means of transport, especially aircraft, comprising a three-dimensionally constructed core disposed between two substantially parallel cover layers is provided.

Sound transmission passages are incorporated in the core, and/or in at least one cover layer. At least one sound absorption layer is in the area of a cover layer at least in parts. Passages in the cover layers and core provide good sound absorption and heat insulation. The passages allow transmission of sound. The through channels and the preferably inclined installation of the sandwich element allow foreign bodies to be flushed out by, for example, a cleaning liquid or condensation. Possibly sufficient sound absorption can be achieved without the sound absorption layer. Ventilation of the core prevents the long-term presence of condensation, which could cause corrosion and/or rotting. A fire-retardant layer including metal particles may increase fire protection and electromagnetic insulation.

A secondary battery includes a gas release valve located at a battery container housing a power generating element, wherein: the gas release valve includes a valve disk caused to expand outward by internal pressure in the battery container; wherein a plurality of grooves are formed at the valve disk in order that a plurality of valve element pieces become fractured along the grooves when the valve disk expands due to the internal pressure; and a scatter-deterring portion is formed at the valve disk in order to prevent the fractured valve element pieces along the grooves from scattering away from the valve disk.

A monolithic suppressor for suppressing sounds generated by the discharge of a firearm, wherein the discharge generates propellant gases. The monolithic suppressor includes a bore having a first end and a second end, the first end having an inlet aperture and the second end having an outlet aperture. In addition, a plurality of baffles are disposed within the bore, wherein the plurality of baffles further define a plurality of chambers. The chambers of the suppressor include at least an arcuate baffle and a slanted baffle. The plurality of chambers are configured to cause the propellant gases to spin in a plurality of vortices within one or more of the chambers thereby slowing the propagation of the gases within the suppressor.

A ground shield structure is suitable for use in a circuit structure. The ground shield structure has a plurality of ground cells that are arranged on a ground plane periodically, compactly and complementarily. The slots between the ground cells are used to reduce the eddy current generated on the ground shield structure. The ground shield structure increases the slow-wave factor to slow the waves so that the area of the circuit layout can be decreased. Besides, the ground shield structure can reduce the energy loss of the inner circuit of the circuit structure and can increase the quantities of inductance and capacitance in per unit area thereon.

A method of hindering the propagation of a computer virus on a computer network is disclosed. The computer network comprises a plurality of addressable connections capable of receiving data from at least one computer system, and a detection computer arranged to detect the presence of a computer virus. The method comprises: operating the detection computer to monitor the plurality of addressable connections thereby to detect the presence of a computer virus on at least one of the addressable connections; in the event that a computer virus is detected, identifying the at least one computer system that sent the computer virus to the at least one addressable connection; and sending virus remediating means to the at least one identified computer system, the virus remediating means being arranged at least to hinder the operation of the computer virus. A computer program and computer system for hindering the propagation of a computer virus is also disclosed.

A method and apparatus for propagating updates in databases are disclosed. For example, the present method uses “blocking” and/or “thresholding” to delay update propagation and/or to limit the propagation of updates to an optimal stage. For example, the present method receives at least one database update and extracts at least one token from the at least one database update. The method then determines whether a threshold for propagating the at least one database update for the at least one token is reached. The method then propagates the at least one database update for updating an index structure of a database pertaining to the at least one token whose threshold has been reached.

The invention relates to a Method for calculating a local extremum, preferably a local minimum, of a multidimensional function E(x₁, x₂, . . . , x_n) which is interpretable as a function of potential energy with spatial coordinates (x₁, x₂, . . . , x_n), using an iteration process based on a molecular dynamics based quenching method comprising the following steps:

a) Calculating a trajectory X(ti) at discrete times t_i=Σ_iδt_i starting from an assigned initial coordinate X(0) on basis of a gradient f_k=δE/δx_k with k=1, . . . ,n and a time derivatives of the coordinates v_k=dx_k/dt using f_xk=m_xk dv_xk/dt in which m_xk represent masses at the spatial coordinates and v_xk=dx_k/dt represents velocity

b) Performing a molecular dynamics based quenching method for analysing said function E(x₁, x₂, . . . , x_n) of existence of a local extremum, in case of reaching a local extremum abort processing and/or select a new initial coordinate and proceed further from step a)

c) Calculating at each iteration time step δt_i

• • F=(f_xk) and (k=1, . . . ,n) representing a global force vector field acting in the spatial coordinates,
  • V=(v_xk) representing a velocity vector field, P=F·V representing power Setting V=(1−α)×V+α×(F/|F|)·|V|
  • α is a dimensionless variable and amounts a given initial value α_start at first iteration time step
  • In case of P<0: V is set to zero, α becomes α_start, δt_i will be reduced and return to step b)
  • In case of P≧0: Analysing whether the number of conducted iteration steps since the last detected case of P<0 exceeds a given minimum number N_min, in case of “no” returning to step b) and in case of “yes” increasing δt_i, decreasing α and return to step b).

An optical fibre network comprises a laser source (1a) configured to generate laser light of a plurality of wavelengths. A first optical fibre (4a), transmits multi-wavelength light from the laser source to a location remote from the laser source. A wavelength division multiplexer (2) at the remote location (203) is connected to a plurality of second optical fibres (8). A plurality of optical modulators (9) are each connected optically to the wavelength division multiplexer (2) via a respective second optical fibre (8). The wavelength division multiplexer (2) is arranged to de-multiplex the multi-wavelength light received from the first optical fibre (4a) into a plurality of wavelengths and to supply a respective wavelength to each of the second optical fibres (8). The optical modulators (9) are reflective optical modulators each arranged to modulate light received from the associated second optical fibre (8) with a data signal and to reflect the modulated light back along the second optical fibre (8). The wavelength division multiplexer (2) is arranged to multiplex the modulated light from all of the second optical fibres (8) into a wavelength division multiplexed optical signal for onward transmission along a third optical fibre (13).

An optical mode converter comprising a slow wave electrode structure and including Schottky barriers for preventing an accumulation of free carriers in the optical waveguide region of the converter. The Schottky barriers are also used for suppressing higher order modes in the waveguide. Low refractive index insulators are used to allow efficient driving of the device without hindering the impedance or the microwave index of the optical mode converter. Two-photon absorption processes are eliminated through the use of a waveguide semiconductor material having a bandgap of at least twice the photon energy of the light beam propagating through the optical mode converter.

The delayed start-up verbal warning unit includes an audible alarm that comprises a verbal warning and instructions. The unit is connected to a control circuit for machinery, e.g., an oil well pumping unit. The control circuit includes a means of generating a start-up signal for the machinery. Where the machinery is an oil well pumping unit, the unit operates to issue a verbal warning and instructions related to imminent start-up of the pumping unit. Playback of the verbal warning delays propagation of the start-up signal to the pump, thereby providing people in the area the opportunity to avoid injury by evacuating the area. Additionally, start-up signal status may be sent by the unit to a Supervisory Control And Data Acquisition (SCADA) system for further processing and analysis.

One embodiment of the invention is directed to managing access of a host computer to a network. A first communication session with the host computer may be conducted to authenticate the host computer's identity. A second communication session with the host computer may be conducted to determine the health status of the host computer.

A ridge waveguide filter having a slow-wave structure. The ridge waveguide has an elongate hollow tube formed of a conductive sidewall. At least a first part of the conductive sidewall periodically is recessed along an elongate direction of the hollow tube, such that a plurality of ridges is formed to project in the hollow tube. The sidewall is fabricated from metallic materials. The hollow tube includes a rectangular hollow tube or a circular hollow tube, for example. The ridges are equally spaced from and parallel with each other. Each of the ridges has a bottom surface parallel with a second part of the conductive sidewall. The second part of the conductive sidewall is opposite to the first part of the conductive sidewall.

A gas turbine component for example a turbine blade or a rotor disk is provided. In order to extend the service life of the corresponding component by reducing the thermally or mechanically induced stress concentration in the direct surroundings of a duct opening onto a surface, at least one groove-like recess is provided near the effective zone of the opening.

The invention relates to a sorting device and method for sorting granulated mass containing varied materials, such as granulated mass containing varied materials, such as granulated electronic scrap. According to the invention, the sorting device comprises a planar, elongated trough conveyor (1) having at least a first elongated and vertical edge (2, 3, 4); a feeding device (5) for feeding the mass into the first end (6) of the trough conveyor, a vibrator (9) provided with a motor (7) and an eccentric (8), whose rotation axis (10) is disposed in a plane deviating from the plane defined by the trough conveyor so that the mass proceeds obliquely forwards in the trough conveyor towards the first edge and second end (11); a first suction device (12) for removing the lightest surface portion of the mass near the edge, a guide (13) which is oblique with respect to the edge for bringing apart the mass flow from the edge; as well as a mechanical separator member (14) for dividing the mass flow into two parts.