摘要:
On the basis of at least a difference between a desired state amount related to a posture of a robot 1 about a vertical axis or a floor surface normal line axis and an actual state amount of the robot 1 and a permissible range of a restriction object amount, namely, a vertical component of a floor reaction force moment or a component of the floor reaction force moment in a floor surface normal line direction to be applied to the robot 1, instantaneous values of a desired motion and a desired floor reaction force are determined such that a difference between a floor reaction force moment balancing with the desired motion on a dynamic model and a floor reaction force moment of the desired floor reaction force approximates the aforesaid difference to zero, while having the restriction object amount, which is associated with the desired floor reaction force, fall within the permissible range.
摘要:
The present invention provides a liquid crystal composition having a negative dielectric anisotropy whose absolute value is large, and a low viscosity, and also provides a VA type liquid crystal element using the same.Disclosed is a liquid crystal composition containing a compound represented by the general formula (I) and an alkenyl compound represented by the general formula (II): By combining the liquid compounds according to the present invention, a liquid crystal composition having a low viscosity and a negative dielectric anisotropy could be obtained while nearly maintaining physical properties such as refractive anisotropy. By using the composition, a liquid crystal element having excellent reliability, capable of maintaining a high voltage retention until a high temperature region, is provided, and the display is very applicable as a VA type, ECB type, or IPS type liquid crystal display, and is particularly effective for speeding up response without thinning cell gaps.
摘要:
There is a need for high-precision detection timing in a radiological imaging apparatus using a semiconductor detector so as to decrease time variations against a noise and easily correct process variations. A radiation detection circuit includes: a semiconductor detector; charge accumulation means connected to the semiconductor detector; a circuit to discriminate timing of a signal generated from the charge accumulation means based on a specified threshold value; a shaper 1 to limit a band from the charge accumulation means using a first time constant; a shaper 2 to limit a band from the charge accumulation means using a second time constant; a circuit 1 to hold an analog peak value 1 for the shaper 1; and a circuit 2 to hold an analog peak value 2 for the shaper 2. The radiation detection circuit performs a signal process to generate timing correction data based on the analog peak values 1 and 2 and correct timing data from the timing discriminator circuit.
摘要:
A radiation detection circuit having a multi-channel input used for radiation measurement and capable of canceling cross-talk noise generated from a logic circuit for controlling a channel and enabling low noise radiation measurement easily and precisely. The radiation detection circuit also generates an inverted signal for each of input/output signals needed for controlling its logic and cancels a noise charge generated by coupled capacity between a bonding wire (analog input side in IC package) for connecting its output to another radiation detection circuit and a bonding wire of each of input/output signals of the logic control circuit by generating an inverted noise charge with coupled capacity between the inverted signal and its output when in logic controlling, thereby suppressing the cross-talk noise generated by each of its input/output signals.
摘要:
An allowable ranges of a horizontal component of the translation floor reaction or a floor-surface-parallel component of the translation floor reaction force of a legged mobile robot 1 or a horizontal component of a total center-of-gravity acceleration or a floor-surface-parallel component of a total center-of-gravity acceleration of the robot 1 (hereinafter referred to as a friction force component) is set, and a provisional movement of the robot 1 is determined so as to satisfy a predetermined dynamical equilibrium condition. When the friction force component determined by this provisional movement departs from the allowable range, a rate of change of an angular momentum around the center of gravity of the robot 1 is changed from the provisional movement so as to satisfy the dynamical equilibrium condition while limiting the friction force component within the allowable range to thereby determine a movement of a desired gait. Consequently, not only walking of the robot 1 but also running thereof can be performed properly, and a gait that does not cause slippage is generated.
摘要:
A die body includes a die hole for punching a work. A core, including a discharge hole, which is in communication with the die hole, is provided in the die body. The core is provided with a plurality of fluid injection ports through which fluid is injected downward of the discharge hole. The die body is provided with inflow ports through which compressed fluid flows into the fluid injection ports. The core is made of resin. The discharge hole is tapered toward its upper side. An outer peripheral surface of the die body is provided with a peripheral groove which is in communication with the inflow ports.
摘要:
When gait parameters for specifying a gait to be generated of a mobile robot (1) are determined, the values of the priority parameters of the gait parameters are updated from the values of the priority gait parameters of predetermined base gait parameters such that the priority parameters approach and reach the original required values step by step. For every update, out of non-priority parameters other than the priority ones, the parameters to be sought are determined by seeking so that the parameters may satisfy the gait boundary condition on the dynamic model of the robot (1). Thus, the new gait parameters including the determined parameters and the updated priority parameters are determined. Lastly, the gate of the mobile robot (1) is generated using dynamic model and the new gait parameters determined when the priority parameters are made to agree with the requested value.
摘要:
To provide a control circuit of a current mode DC-DC converter, a current mode DC-DC converter and a control method thereof having excellent high-speed responsiveness with respect to fluctuations in output voltage. The control circuit of the current mode DC-DC converter serves as a DC-DC converter 1 that controls a peak value of a coil current and comprises a window comparator that detects whether an output voltage VOUT is within a predetermined voltage range including a target voltage, and a peak current setting unit that sets a peak current setting value of a coil current to a lower limit value or an upper limit value in response to a high or low voltage level of the output voltage VOUT, in the case that the output voltage VOUT is not within the predetermined voltage range including the target voltage.
摘要:
A data processor includes: a central processing unit (CPU), in which a plurality of virtual machines (101), each running an application program under controls of different operating systems, and a virtual machine manager (190) for controlling the plurality of virtual machines are selectively arranged according to information set in mode registers (140, 150, 151); and a resource access management module (110) for managing access to hardware resource available for the plurality of virtual machines. The resource access management module accepts, as inputs, the information set in the mode registers and access control information of the central processing unit to the hardware resource, compares the information thus input with information set in a control register, and controls whether or not to permit access to the hardware resource in response to the access control information. As a result, redesign involved in changes in system specifications can be reduced, and a malfunction owing to resource contention can be prevented. The invention contributes to increase of security.
摘要:
When data is transmitted to a destination of data transmission, a multiplex communication system 1 as a source of data transmission receives, from the destination of data transmission through a data reception processing unit 15, the information about the amount of data which can be successively received, compares the amount of data which can be successively received with the amount of data which can be successively transmitted as preset, selects the smaller amount, creates a packet for successively transmitting data frames corresponding to the amount of data as selected, and transmit said packet through a data transmission processing unit 14.