Title:
APPARATUS AND METHOD FOR CONVERTING OUTPUT CURRENT OF CURRENT BUFFER INTO DIGITAL CODE
Document Type and Number:
WIPO Patent Application WO/2018/139807
Kind Code:
A1
Abstract:
Disclosed are an apparatus and a method for converting an output current of a current buffer into a digital code. According to one embodiment of the present invention, an apparatus for converting an output current of a current buffer into a digital code may comprise: a current buffer unit for converting an input signal into a current signal and outputting the converted current signal; and a signal conversion unit for converting the output current signal into a digital current signal to feed back the converted digital current signal, and converting the output current signal into a digital code on the basis of the ratio between the output current signal and the fed back digital current signal.
Inventors:
CHAE YOUNG CHEOL (KR)
HWANG HYUN SEOK (KR)
HWANG HYUN SEOK (KR)
Application Number:
PCT/KR2018/000835
Publication Date:
August 02, 2018
Filing Date:
January 18, 2018
Export Citation:
Assignee:
INTERMATRIX (KR)
International Classes:
H03M3/00; H03F3/45; H03K17/96; H03M1/12
Foreign References:
| JP2008011095A | 2008-01-17 | |||
| JP2010136360A | 2010-06-17 |
Other References:
KIM KI-DUK: "A Fully-Differential Capacitive Touch Controller with Input Common-Mode Feedback for Symmetric Display Noise Cancellation", 2014 SYMPOSIUM ON VLSI CIRCUITS DIGEST OF TECHNICAL PAPERS, 10 June 2014 (2014-06-10), XP032622436
JO, WOOJIN ET AL.: "A 280kS/s 80μW 13-bit incremental delta-sigma ADC for IoT devices", 2014 SUMMER CONFERENCE ON THE INSTITUTE OF ELECTRONICS AND INFORMATION ENGENEERS, vol. 37, no. 1, June 2014 (2014-06-01), pages 978 - 980, XP055531183
MUTSUMI HAMAGUCHI: "a 240Hz-Reporting-Rate 143x81 Mutual-Capacitance Touch-Sensing Analog Front-End IC with 37dB SNR for lmm-Diameter Stylus", 2014 IEEE INTERNATIONAL SOLID-STATE CIRCUITS CONFERENCE, 11 February 2014 (2014-02-11), pages 214 - 216, XP032575031
JO, WOOJIN ET AL.: "A 280kS/s 80μW 13-bit incremental delta-sigma ADC for IoT devices", 2014 SUMMER CONFERENCE ON THE INSTITUTE OF ELECTRONICS AND INFORMATION ENGENEERS, vol. 37, no. 1, June 2014 (2014-06-01), pages 978 - 980, XP055531183
MUTSUMI HAMAGUCHI: "a 240Hz-Reporting-Rate 143x81 Mutual-Capacitance Touch-Sensing Analog Front-End IC with 37dB SNR for lmm-Diameter Stylus", 2014 IEEE INTERNATIONAL SOLID-STATE CIRCUITS CONFERENCE, 11 February 2014 (2014-02-11), pages 214 - 216, XP032575031
Attorney, Agent or Firm:
KIM, Youn Gwon (KR)
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