BROWSE

Related Researcher

Author's Photo

Kim, Jae Joon
Circuits & Systems Design Lab (CSDL)
Research Interests
  • Integrated circuits and systems, smart sensor interfaces, wearable healthcare systems, IoT & automotive electronics, mixed-mode circuits

ITEM VIEW & DOWNLOAD

Algorithm for improving snr using high voltage and differential manchester code for capacitive touch screen panel

Cited 0 times inthomson ciCited 0 times inthomson ci
Title
Algorithm for improving snr using high voltage and differential manchester code for capacitive touch screen panel
Author
Ma, HyunggunHeo, SanghyunKim, Jae JoonBien, Franklin
Issue Date
2014-11
Publisher
INST ENGINEERING TECHNOLOGY-IET
Citation
ELECTRONICS LETTERS, v.50, no.24, pp.1813 - 1815
Abstract
An algorithm for a capacitive touch screen panel that can make the sum of the signal into '0' for the use of high voltage is presented. The differential Manchester code is combined with the Walsh-Hadamard code to generate an input coded signal. Owing to the property of the differential Manchester code, the Moore-Penrose pseudoinverse matrix is employed to decode-mutual capacitance from the received signal. As only the variation between the un-touch and touch condition is detected at the receiver, a high-voltage input coded signal is used. Unlike a normal touch system, the decoded sensing capacitance in the proposed algorithm does not have an absolute value. Positive decoded capacitance is the un-touch condition and negative decoded capacitance is the touch condition. The simulated signal-to-noise ratio (SNR) of the proposed algorithm is 27.9 dB, which is 8.26 dB higher than SNR in not return to zero (NRZ).
URI
https://scholarworks.unist.ac.kr/handle/201301/9542
URL
http://digital-library.theiet.org/content/journals/10.1049/el.2014.2269
DOI
10.1049/el.2014.2269
ISSN
0013-5194
Appears in Collections:
EE_Journal Papers
Files in This Item:
There are no files associated with this item.

find_unist can give you direct access to the published full text of this article. (UNISTARs only)

Show full item record

qrcode

  • mendeley

    citeulike

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

MENU