摘要:
A positron emission tomography apparatus installs a plurality of detector units in the circumference of a bed. The detector unit installs a plurality of combined substrates including detectors, analogue ASICs, and a digital ASIC and a voltage adjustment device inside a housing. A partition plate installed inside the housing separates the region inside the housing into a first region installed with the combined substrates and a second region installed with the voltage adjustment device. The partition plate blocks noise generated in the voltage adjustment device so as not to affect γ-ray detection signals outputted from the detectors, thereby preventing the effect of the noise generated in the voltage adjustment device toward γ-ray detection signals and shortening the examination time.
摘要:
A control device of a legged mobile robot, wherein a state amount error (for example, an error of a vertical position of a body 3), which is a difference between an actual state amount and a state amount of a desired gait related to a translational motion in a predetermined direction (for example, a translational motion in a vertical direction) of a legged mobile robot 1, is determined, and then a desired motion of the desired gait is determined such that the state amount error approaches zero. The desired motion is determined using a dynamic model by additionally inputting a virtual external force determined on the basis of the state amount error to the dynamic model for generating desired gaits. At the same time, a desired floor reaction force of the robot 1 is corrected on the basis of a state amount error of zero, and compliance control is carried out to make the motion and the floor reaction force of the robot 1 follow the desired motion and the desired floor reaction force of the desired gait.
摘要:
Ground contact portions 10 are classified into a tree structure such that each of the ground contact portions 10 of a mobile body 1 (mobile robot) equipped with three or more ground contact portions 10 becomes a leaf node and that an intermediate node exists between the leaf node and a root node having all the leaf nodes as its descendant nodes. On each node (a C-th node) having child nodes, the correction amounts of the desired relative heights of the ground contact portions 10 of the C-th node are determined such that the relative relationship among the actual node floor reaction forces of the child nodes of the C-th node approximates the relative relationship among the desired node floor reaction forces of the child nodes of the C-th node, and joints of the mobile body 1 are operated so that a desired relative height obtained by combining the correction amounts is satisfied.
摘要:
The occurrence of a slippage of a robot in operation, following a desired gait, is determined, and the permissible range of a restriction object amount, such as a floor reaction force horizontal component or a floor reaction force moment vertical component to be applied to the robot, is variably set according to a slippage determination result. A provisional motion of a desired gait is determined using a dynamic model, and if the restriction object amount defined by the provisional motion deviates from the permissible range, then the motion of a desired gait is determined by correcting the provisional motion by changing the changing rate of the angular momentum of the robot from the provisional motion so as to limit the restriction object amount to the permissible range, while satisfying a dynamic balance condition.
摘要:
In a semiconductor device, capacitance between copper interconnections is decreased and the insulation breakdown is improved simultaneously, and a countermeasure is taken for misalignment via by a manufacturing method including the steps of forming an interconnection containing copper as a main ingredient in an insulative film above a substrate, forming insulative films and a barrier insulative film for a reservoir pattern, forming an insulative film capable of suppressing or preventing copper from diffusing on the upper surface and on the lateral surface of the interconnection and above the insulative film and the insulative film, forming insulative films of low dielectric constant, in which the insulative film is formed such that the deposition rate above the opposing lateral surfaces of the interconnections is larger than the deposition rate therebelow to form an air gap between the adjacent interconnections and, finally, planarizing the insulative film by interlayer CMP.
摘要:
In a semiconductor device, capacitance between copper interconnections is decreased and the insulation breakdown is improved simultaneously, and a countermeasure is taken for misalignment via by a manufacturing method including the steps of forming an interconnection containing copper as a main ingredient in an insulative film above a substrate, forming insulative films and a barrier insulative film for a reservoir pattern, forming an insulative film capable of suppressing or preventing copper from diffusing on the upper surface and on the lateral surface of the interconnection and above the insulative film and the insulative film, forming insulative films of low dielectric constant, in which the insulative film is formed such that the deposition rate above the opposing lateral surfaces of the interconnections is larger than the deposition rate therebelow to form an air gap between the adjacent interconnections and, finally, planarizing the insulative film by interlayer CMP.
摘要:
A desired gait is generated so as to satisfy a dynamical equilibrium condition concerning the resultant force of gravity and an inertial force applied to a legged mobile robot 1 using a dynamics model which describes a relationship among at least a horizontal translation movement of a body 24 of the robot 1, a posture varying movement in which the posture of a predetermined part, such as the body 24, of the robot 1 is varied while keeping the center of gravity of the robot 1 substantially unchanged and floor reaction forces generated due to the movements and is defined on the assumption that a total floor reaction force generated due to a combined movement of the movements is represented as a linear coupling of the floor reaction forces associated with the movements. The dynamics model represents movements as a movement of a body material particle or the like and a rotational movement of a flywheel. The desired gait adapted for not only walking but also running or the like can be generated with a reduced amount of calculation.
摘要:
To provide a control circuit for a synchronous rectifier-type DC-DC converter, a synchronous rectifier-type DC-DC converter and a control method thereof in which, in a light load state and a no-load state, an output voltage can be dropped to thus prevent an overshoot state from continuing. A synchronous rectifier-type DC-DC converter 10 and a control circuit 20A thereof comprising a first switching element FET1 that is made conductive when power is accumulated in an induction element L1, and a second switching element FET2 that is made conductive when power accumulated in induction element L1 is supplied to a load, also comprises a detecting unit COMP2 that detects that a value of an output voltage VOUT of the synchronous rectifier-type DC-DC converter 10A is a predetermined voltage value that is higher than a target voltage value, and control units COMP1 and OR1 that maintain the second switching element FET2 in a conductive state after discharge of the power accumulated in the induction element L1 is finished, based on the detection results of the detecting unit COMP2.
摘要:
A gait generating system for a mobile robot has n dynamic models and determines a first gait parameter defining a desired gait such that the boundary condition of a gait on a first dynamic model is satisfied. The first gait parameter is corrected step by step by using an m-th dynamic model (m: integer satisfying 2≦m≦n), which is each dynamic model other than the first dynamic model, and an m-th gait parameter that satisfies the boundary condition on the m-th dynamic model is determined. The m-th gait parameter is determined by correcting an object of an (m−1)th gait parameter to be corrected on the basis of the degree of deviation of the gait generated on the m-th dynamic model by using the (m−1)th gait parameter from the boundary condition. A final determined n-th gait parameter and an n-th dynamic model are used to generate a desired gait.
摘要翻译:用于移动机器人的步态生成系统具有n个动态模型,并且确定定义期望步态的第一步态参数,使得满足第一动态模型上的步态的边界条件。 第一个步态参数通过使用第m个动态模型(m:满足2 <= m <= n)的整数,其是除第一动态模型之外的每个动态模型,以及第m步态参数 确定满足第m个动态模型的边界条件。 通过使用(m-)步态参数,通过基于在第m动态模型上产生的步态的偏离程度来校正要校正的第(m-1)步态参数的对象来确定第m步态参数, 1)步态参数从边界条件。 使用最终确定的第n步态参数和第n动态模型来产生期望的步态。
摘要:
A semiconductor integrated circuit apparatus includes: a plurality of flip-flops configured to operate with clocks having mutually different frequencies; an oscillator configured to output oscillation output that is a source of the clocks supplied to the flip-flops; a storage part configured to store control data for a delay fault test; a pulse control part configured to use the oscillation output of the oscillator to generate a launch clock and a capture clock used in the delay fault test, based on the control data, the pulse control part generating the launch clock and the capture clock having pulse widths corresponding to periods of the clocks which operate the flip-flops.