Next Article in Journal
Fault Detection Based on Parity Equations in Multiple Lane Road Car-Following Models Using Bayesian Lane Change Estimation
Previous Article in Journal
Special Issue: Advances in Vehicular Networks
Article

Image Processor and RISC MCU Embedded Single Chip Fingerprint Sensor

School of Information Science and Telecommunication, Hanshin University, 137 Hanshindae-gil, Osan-si 18101, Korea
J. Sens. Actuator Netw. 2020, 9(4), 51; https://doi.org/10.3390/jsan9040051
Received: 28 August 2020 / Revised: 29 October 2020 / Accepted: 30 October 2020 / Published: 2 November 2020
In this paper, we propose a single chip fingerprint sensor with the algorithm processor and 16-bit MCU. The algorithm processor is a logic circuit that implements the GABOR filter and the THINNING step, which occupies 80% of the fingerprint image processing time. The rest of the algorithm is processed by embedded 16-bit MCU with small circuit volume, so all steps of the algorithm can be processed on the single chip without an external CPU. The capacitive sensing circuit was designed by applying the parasitic-insensitive integrator with the variable clock generator. The function was verified by Cadence Spectre for a 1-pixel sensor scheme and RTL and post simulation for digital blocks synthesized by Synopsys Design Compiler in 180n 2-poly 6-metal CMOS (complementary metal–oxide–semiconductor) process. The layout is done by automatic P&R for the full chip in a 96 × 96 pixel array. The chip area is 5010 μm × 5710 μm (28.61 mm2) and the gate count is 2,866,700. The result is compared with a conventional one. The proposed scheme can reduce the processing time by 57%. View Full-Text
Keywords: fingerprint sensor; single chip; GABOR filter; binarization; thinning; embedded MCU; VLSI fingerprint sensor; single chip; GABOR filter; binarization; thinning; embedded MCU; VLSI
Show Figures

Figure 1

MDPI and ACS Style

Jung, S. Image Processor and RISC MCU Embedded Single Chip Fingerprint Sensor. J. Sens. Actuator Netw. 2020, 9, 51. https://doi.org/10.3390/jsan9040051

AMA Style

Jung S. Image Processor and RISC MCU Embedded Single Chip Fingerprint Sensor. Journal of Sensor and Actuator Networks. 2020; 9(4):51. https://doi.org/10.3390/jsan9040051

Chicago/Turabian Style

Jung, Seungmin. 2020. "Image Processor and RISC MCU Embedded Single Chip Fingerprint Sensor" Journal of Sensor and Actuator Networks 9, no. 4: 51. https://doi.org/10.3390/jsan9040051

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop