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This paper presents a tunable low-noise amplifier (LNA) for digital TV (ISDB-T) applications. To receive all channels from 470 MHz to 770 MHz and to relax distortion characteristics of following circuit blocks such as an RF variable-gain amplifier and a mixer, tunable techniques for LNAs are required. A novel output matching configuration for tunable LNAs is proposed, and an input matching technique...
We investigated eye movement in a transportation task using remote control. Participants controlled two sets of joysticks to move a toy excavator and a toy truck monitoring the task process through video displays. They repeated the task ten times. At an early stage of skill acquisition, the participants tended to look at both task related objects (e.g., material to transport and the shovel) and the...
A one hand drive wheelchair with power assist mechanism is developed. In this investigation, we propose a simple and useful manipulation torque detection method which yields wide detection areas with uniform distribution of stress. This method can be applied to a one hand drive wheelchair with complicated structure of manipulation mechanism with three rings. Moreover, even if the grasping position...
III-V semiconductors on insulator structures have successfully been fabricated on a Si substrate using direct wafer bonding. Metal source/drain InGaAs-On-Insulator n-MOSFETs on a Si substrate, fabricated by employing this method, have exhibited superior device operation with high electron mobility of ~1000 cm2/VS, which amounts to the enhancement factor of 1.59x against the Si n-MOSFET at an identical...
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