Ultra-low Power Human Motion Detection Sensor using Electrostatic Induction and Demonstration of Contactless Remote Light Switch

Fuketa, Hiroshi; Morita, Yukinori

doi:10.1109/gcce46687.2019.9015363

Cited by 4 publications

(7 citation statements)

References 3 publications

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“…Figure 1 shows an overview of the proposed sensor. The proposed gesture sensor is based on an ESI-based motion sensor [8,9]. The electrode consists of a metal sheet and an electret foil, as illustrated in Figure 2.…”

Section: Introductionmentioning

confidence: 99%

“…By observing the ESI current, hand movements can be detected. In conventional works [8,9], a single electrode was used to detect hand motion. In contrast, two electrodes are utilized in this study, as shown in Figure 2, to recognize hand gestures, such as hand movement from right to left and left to right.…”

Section: Introductionmentioning

confidence: 99%

“…This system consists of sensing electrode using an electret (Figure 2) and a gesture recognition chip, which is first designed in this study to achieve ultra-low power gesture sensing. As explained above, the proposed sensor is based on the ESI-based motion detection mechanism proposed in conventional works [8,9]. The circuit proposed in this paper is improved compared to that in [8,9].…”

Section: Introductionmentioning

confidence: 99%

“…As explained above, the proposed sensor is based on the ESI-based motion detection mechanism proposed in conventional works [8,9]. The circuit proposed in this paper is improved compared to that in [8,9]. That is, the circuit demonstrated in [8,9] requires differential inputs, which are sensitive to manufacturing variability; hence, the yield may deteriorate, whereas the circuit proposed in this work is a single-ended design.…”

Section: Introductionmentioning

confidence: 99%

“…The circuit proposed in this paper is improved compared to that in [8,9]. That is, the circuit demonstrated in [8,9] requires differential inputs, which are sensitive to manufacturing variability; hence, the yield may deteriorate, whereas the circuit proposed in this work is a single-ended design. Additionally, the intermediate voltage (half of the supply voltage) must be supplied in the conventional circuit [8,9], whereas the proposed circuit operates at a single supply voltage of 3.3 V. A hand gesture sensor based on ESI was demonstrated in [10,11].…”

Section: Introductionmentioning

confidence: 99%

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Ultra-Low Power Hand Gesture Sensor Using Electrostatic Induction

Fuketa

2021

Sensors

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This paper presents an ultra-low power hand gesture sensor using electrostatic induction for mobile devices. Two electrodes, which consist of electret foils stacked on metal sheets, are used to recognize two gestures such as hand movements from left to right and right to left. The hand gesture recognition is realized by detecting the electrostatic induction currents induced by hand movements. However, the electrostatic induction currents are significantly small; hence, a hand gesture recognition chip is first designed in this study to amplify and detect the small electrostatic induction currents with low power. This chip is fabricated in a commercial 180 nm complementary metal oxide semiconductor (CMOS) process, and the measurement results indicate that the fabricated gesture recognition chip consumes 406 nW, which is less than 1/100th of the power dissipation of conventional gesture sensors.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%