213 results about "Transition edge" patented technology

A method and apparatus for monitoring and controlling reactive sputter deposition, particularly useful for depositing insulating compounds (e.g., metal-oxides, metal-nitrides, etc.). For a given nominal cathode power level, target material, and source gases, the power supplied to the cathode (target) is controlled to stabilize the cathode (target) voltage at a specified value or within a specified range corresponding to a partial pressure or relative flow rate value or range of the reactive gas. Such an operating point or range, characterized by a specified voltage value or range and corresponding reactive gas relative-flow/partial-pressure value or range, may be determined empirically based on measuring the cathode voltage as a function of reactive gas relative-flow/partial-pressure for the given nominal power. This relationship is typically a hysteresis curve, and preferably the operation point is selected at or near the hysteresis transition edge to provide high rate deposition of high quality films, including insulating or dielectric films using a metallic target.

A seal usable to seal a transition in a can-annular combustion system of a turbine engine to a turbine vane assembly to direct exhaust gases through the turbine vane assembly. The seal may be formed from an elongated body extending along an outer edge of the transition and having first and second edges. The first edge of the seal may be attached to the transition, and the elongated body may extend away from the transition edge and contact a portion of the turbine vane assembly. The elongated body may flex during use without yielding or otherwise deforming.

A drilling tool includes a basic body defining a center axis of rotation and having two chip channels and two replaceable indexable cutting bits in the form of a center bit and a periphery bit mounted in respective center and periphery pockets formed in an axially front end of the basic body. The center bit and the center pocket are spaced radially from the periphery bit and the periphery pocket along a first diametrical plane of the basic body. At least the center bit includes four identically-shaped cutting edges, one of which constituting an operative cutting edge intersected by a second diametrical plane oriented perpendicularly to the first diametrical plane. Each cutting edge of the center bit comprises first and second part edges joined by a transition edge portion. The first and second part edges of the operative cutting edge constitutes operative first and second part edges, respectively; the operative first part edge being spaced from the center axis and situated closer than the operative second part edge to an outer periphery of the basic body. An axially forwardmost portion of the operative first part edge is disposed axially forwardly of an axially forwardmost portion of the operative second part edge, and an axially forwardmost portion of an operative cutting edge of the periphery bit lies axially between the axially forwardmost portions of the operative first and second part edges of the center bit, respectively.

A novel clock control circuit and method in which phase synchronization with respect to an external clock can be realized without recourse to the external clocks. A clock controlling circuit includes a delay circuit sequence comprised of N stages of units each made up of a first delay circuit 10 and a first interior division circuit 11 for delaying the output signal of the first delay circuit, and a phase difference detection circuit 14 for detecting the clock period and the delay time difference of the delay circuit sequence from the input clock IN and a clock END output by the delay circuit sequence as a phase difference of the two signals. A plural number of second interior division circuits 12, fed with an output signal of the first delay circuit, delays a transition edge of an output signal of the first delay circuit by t2-nxT/N to output the delayed signal. The second interior division circuit outputs a signal which makes transition at a timing delayed nxtCK/N as from the start time point of the clock cycle. A synthesis circuit 13 generates a frequency multiplied clock signal which is obtained on equal division of the clock period tCK of the input clock from the input clock IN and the number 1 to numberN-1 third delays circuit.

The present invention relates to a geometric structure of rotation working part of used for driving type rototilling-tillage machine, and especially to a cultivation rotation working part with bionic geometric structure. The invention takes the fore leg claw toe of mole with high-efficient digging capability as a bionic researching object, extracts the special geometric structure characteristic and applies the geometric structure characteristic for designing the rotation working parts (rotary blade or stubble breaking blade) on the cultivation machinery. The component is mainly composed of a side cutting surface with a side cutting edge, a front cutting surface with positive cutting blade, a transition surface for connecting the front cutting surface and the side back surface, and a transition edge for connecting the front cutting edge and the side cutting edge. The invention is characterized in that the front cutting edge (6) adopts a bionic circular arc structure. The geometric shape is confirmed by the following equation: when the operation breadth of single blade of front cutting edge is L, the corresponding central angle of circular cutting edge is (theta), the corresponding radius is (r), and the number of circular arcs is (n), the corresponding expression is as follows: L/2nr=sin(theta/2). The cultivation rotation working part with bionic geometric structure according to the invention can greatly reduce the energy consumption in cultivation operation under the precondition that the cultivation quality is ensured.

To perform mask control of data signals without increasing the number of external terminals even when the number of bits in a data mask signal is large, an address input circuit sequentially receives a first address signal, a second address signal, and a first data mask signal supplied to an address terminal in synchronization with transition edges of a clock signal. Namely, the first data mask signal is supplied to the address terminal at a different timing from timing at which the first and second address signals are received. The first address signal, second address signal, and first data mask signal are output, for example, from a controller accessing a semiconductor memory. A data input/output circuit inputs/outputs data via a data terminal and masks at least either of write data to memory cells and read data from the memory cells in accordance with logic of the first data mask signal.

The circuit is provided for the transmission of data amplitude modulated radio frequency signals. The circuit includes a local oscillator for generating an oscillating signal at a determined carrier frequency, a unit for shaping data pulses to supply a data amplitude modulation control signal (Vmod), and a power amplifier receiving the oscillating signal and the data amplitude modulation control signal (Vmod) for the transmission of data amplitude modulated radio frequency signals by an antenna or an antenna arrangement. The data pulse shaping unit (13) includes a pulse shaper (21) for digitally adapting the data transition edges on the basis of an incoming digital data signal (d), and a digital-analogue conversion stage (26, 27) for converting a digital data signal shaped in the unit, in order to supply the data amplitude modulation control signal (Vmod) to the power amplifier.

The present invention provides a large-feeding milling tool blade capable of milling deep cavity. It includes the following several portions: parallel and opposite upper and lower surfaces, mounting hole and curved side surface connecting upper and lower surfaces, the upper surface and lower surface are crossed and formed into curved cutting edge, the described cutting edge includes three cutting edge sections, any cutting edge section is formed from curved sleeking edge, first cutting edge, second cutting edge and arched transition edge for connecting first cutting edge and second cutting edge.

A clock recovery system includes a sampler that is configured to sample an input data signal in synchronization with a modulated clock signal to generate a sample of the input data signal. A phase comparator is configured to compute a position of a transition edge of the input data signal using the sample data signal, and to compare the computed position with a position of an edge of the modulated clock signal to generate a comparison result. An edge counter is configured to count transition edges of the sample data signal. A controller is configured to generate first and second control signals based on the comparison result and the count of the transition edges. A clock phase modulator is configured to generate the modulated clock signal by adjusting a phase of an input clock signal responsive to the first and second control signals, such that the phase is increased in response to the first control signal and reduced in response to the second control signal.

The invention discloses a special efficient turning tool for hogging ultra-large axial forgings. The hogging process of the hydrogenated cylindrical shells of the ultra-large axial forgings has the problems that a cutter cracks and fails under variable-load and variable-frequency mechanical impact, the radiating conditions in the cutting process are weak, the cutter and scraps are stuck together as the cutter body is softened by high temperature, and the like. The special efficient turning tool for hogging ultra-large axial forgings comprises a turning tool body (1), wherein a fastening screw hole (5) is arranged at the very center of the turning tool body; the turning tool body is of a regular pentagon shape, has five cutting edges and is provided with a front tool surface (2) and a bottom surface (3); a cutting surface (13) of the turning tool body is provided with a group of negative chamfer cutting edges (4); the front tool surface of the turning tool body is sequentially provided with a ellipsoidal bulge (6), an arrow-shaped bulge (7), a wave-shaped scraps guiding wall (8), a scraps containing groove (9) and an arc transition edge (10); and the bottom surface of the turning tool body is provided with a tool bottom radiating groove (11) and a tool body supporting structure (12). The special efficient turning tool disclosed by the invention is used as a turning tool for hogging the ultra-large axial forgings on a heavy-duty lathe.