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In order to develop a brain computer interface (BCI), the present author and his group, yamanoi group, have investigated the brain activity during human recognition of characters and symbols representing directional meaning. Subjects were asked to read them silently. Electroencephalograms (EEGs) were averaged for each stimulus type, and event related potentials (ERPs) were obtained. The equivalent...
An energy-efficient and highly-reliable nonvolatile FPGA using a self-terminated power-gating scheme is proposed. Since the write current is automatically cut off just after the temporal data in the flip-flop is successfully backed up in the nonvolatile device, the amount of write energy can be minimized with no write failure. Moreover, when the backup operation in a particular logic cluster is completed,...
This paper presents a solution for fault-tolerance in logic circuits comprised of Carbon Nanotube FETs (CNTFETs). This work builds on a recently proposed method for errorcorrection called Restorative Feedback (RFB). The RFB method is a variant of Triple-Modular Redundancy (TMR) that utilizes the fault masking capabilities of the Muller C element to provide added protection against transient faults...
In multiplication, partial products must first be generated by single-digit multipliers. Then, a parallel addition technique is required to add them. Both steps are addressed in this paper by proposing novel current-mode circuits in ternary logic. All of the designs are simulated by HSPICE and 32nm CNTFET. Moreover, the second step of multiplication is completely demonstrated in this paper for multiplying...
This study proposes a design of a ternary logic inverter using graphene barristor (GB). To design a multiplevalued logic gate, controlling threshold voltages of the unit device should be easy. We determined that the doping concentration of the graphene can easily control the operation voltage of the GB. To realize an ideal ternary logic gate, the concept of a single pole triple throw switch is proposed...
Reversible computing is a promising research field due to its applications in several emerging technologies. Accordingly, several approaches for the design of reversible circuits have been introduced -- including solutions realizing functionality provided in terms of hardware description languages. Their main drawback is, however, that they require a substantial amountof additional circuit lines....
This paper introduces new algorithms to synthesize reversible functions using EXOR-sum of Products-of-EXOR-sums (EPOE) structures. The motivation for using these structures is to reduce the number of as well as the sizes of multiple controlled Toffoli gates, and thus the quantum cost. To achieve these reductions the paper generalizes from existing 2-level AND-EXOR structures (ESOP) commonly used in...
Motivated by its variety of applications in several (emerging) technologies, the design of reversible circuits received significant attention in the recent past. With the emergence of physical realizations, also the consideration of faults and fault-tolerance became important. It has been suggested that parity preserving circuits would be ideal for fault detection, since here the parity of the inputs...
A Majority-Inverter Graph (MIG) is a homogeneous logic network, where each node represents the majority function. Recently, a logic optimization package based on the MIG datastructure, with 3-input majority node (M3) has been proposed [2],[30]. It is demonstrated to have efficient area-delay-power results compared to state-of-the-art logic optimization packages. In this paper, the Boolean algebraic...
This paper presents "Associative Image Search", a new image retrieval scheme and its specific engineering application, which enable value creation from big data. The main aim of the associative image search is the realization of information retrieval that enhances the potential for serendipities by providing users with new awareness. Thus, this paper presents the details of research for...
A radio telescope analyzes radio frequency (RF) signal received from celestial objects. It consists of an antenna, a receiver, and a spectrometer. The spectrometer converts thetime domain signal into the frequency domain signal by an FFToperation. This paper proposes an FFT circuit based on nestedresidue number system (NRNS). Since the FFT operation is themost computationally intensive part, parallel...
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