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A highly energy efficient reconfigurable accelerator called CMA (Cool Mega-Array) is proposed. It consists of a large Processing Element (PE) array without memory elements for maintain result of ALU and configuration data, a small simple programmable micro controller for data management, and the data memory. Unlike traditional coarse grained reconfigurable processors, the power consumption for hardware...
In this paper, we discuss the functionality of mobile systems in a new generation network. Our goal is to provide mission-critical services using the mobile systems in the fields such as energy, disaster prevention, and medical care. It is necessary to guarantee both reliability and quality of communication for these services. We show that the future mobile systems should have three functions for...
We propose a remote bilateral control method of master-slave manipulators with an environment observer. The adaptive environment observer estimates characteristics of the environment in a remote place. Thus, the system predicts a virtual environment that is generated by a real environment. The proposed system exhibits good operatability and tracking when the slave system presses a compliant wall under...
This paper describes a design and implementation methodology for fine-grain power gating. Since sleep-in and wakeup are controlled in a fine granularity in run time, shortening the transition time between the sleep and active states is strongly required. In particular, shortening the wakeup time is essential because it affects the execution time and hence does the performance. However, this requirement...
We propose a 1.25/10.3-Gbit/s bit rate discrimination circuit that can distinguish the bit rate of burst signals in 50 ns. A dual-rate burst-mode receiver including this circuit can operate correctly without any external control signals.
This paper proposes an access control method based on sample monitoring for volatile traffic in interactive TV services. The proposed method controls the access of interactive TV users by utilizing the following functions. Firstly, the total volume of access induced by all users is accurately estimated by measuring the volume of access induced by sample users. Then, based on the estimated results,...
This paper compares performances in two types of inter-domain path computation schemes, i.e. end-to-end and per-domain schemes. The latter is advantageous under normal traffic loads, while the former is advantageous under heavy traffic loads.
We explain an algorithm to do numerically controlled tapping. This dual predictive control algorithm achieves both high speeds and precise positioning. By predictively controlling z-axis motion and also predicting spindle-axis positions, we ensure good synchronization between these two motions. An experiment achieving tapping with 6,000 rpm/160 ms acceleration/deceleration, 6,000 rpm rotational speed...
We present a new scalar processor for high-speed vector processing and its evaluation. The proposed processor can hide long main memory access latency by introducing slide-windowed floating-point registers with data preloading feature and pipelined memory. Owing to the slide-window structure, the proposed processor can utilize more floating-point registers in keeping upward compatibility with existing...
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