Title:
COMMUNICATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2020/044583
Kind Code:
A1
Abstract:
A communication circuit (320) generates a clock signal which is a digital signal corresponding to a serial clock and a data signal which is a digital signal corresponding to serial data to be transmitted. A modulation circuit (330) generates a first modulated signal by means of digital modulation of a first carrier wave having a first frequency with the clock signal and a second modulated signal by means of digital modulation of a second carrier wave having a second frequency different from the first frequency with the data signal and applies the modulated signals between a first conductor and a second conductor. A demodulation circuit (440) is provided with a buffer amplifier (441) having high input impedance and generates the clock signal and the data signal by demodulating the first modulated signal and the second modulated signal. A communication circuit (420) acquires the serial data on the basis of the clock signal and the data signal.
Inventors:
TANABE JUNKO (JP)
NODA AKIHITO (JP)
NODA AKIHITO (JP)
Application Number:
PCT/JP2018/045743
Publication Date:
March 05, 2020
Filing Date:
December 12, 2018
Export Citation:
Assignee:
TEIJIN LTD (JP)
International Classes:
H04J1/00; H04B3/02; H04B13/00
Domestic Patent References:
| WO2011089667A1 | 2011-07-28 | |||
| WO1996031038A1 | 1996-10-03 |
Foreign References:
| JP2003134053A | 2003-05-09 | |||
| JPH1098439A | 1998-04-14 | |||
| JP6377290B1 | 2018-08-22 | |||
| JP4419082B2 | 2010-02-24 | |||
| JP2017025432A | 2017-02-02 | |||
| JP2018159542A | 2018-10-11 |
Other References:
NODA, AKIHITO ET AL.: "Inter-IC for wearables (I2We): Power and data transfer over double-sided conductive textile", IEEE TRANSACTIONS ON BIOMEDICAL CIRCUITS AND SYSTEMS, vol. 13, no. 1, February 2019 (2019-02-01), pages 80 - 90, XP011707993, DOI: 10.1109/TBCAS.2018.2881219
NODA, AKIHITO ET AL.: "Frequency-division- multiplexed signal and power transfer for wearable devices networked via conducti", 2017 IEEE MTT-S INTERNATIONAL MICROWAVE SYMPOSIUM (IMS, 4 June 2017 (2017-06-04), pages 537 - 540, XP033159751, DOI: 10.1109/MWSYM.2017.8058619
AKITA, JUNICHI ET AL.: "Flexible network infrastructure for wearable computing using conductive fabric and its evaluation", 26TH IEEE INTERNATIONAL CONFERENCE ON DISTRIBUTED COMPUTING SYSTEMS WORKSHOPS (ICDCSW'06), 4 July 2006 (2006-07-04), pages 1 - 6, XP010927637
See also references of EP 3846363A4
NODA, AKIHITO ET AL.: "Frequency-division- multiplexed signal and power transfer for wearable devices networked via conducti", 2017 IEEE MTT-S INTERNATIONAL MICROWAVE SYMPOSIUM (IMS, 4 June 2017 (2017-06-04), pages 537 - 540, XP033159751, DOI: 10.1109/MWSYM.2017.8058619
AKITA, JUNICHI ET AL.: "Flexible network infrastructure for wearable computing using conductive fabric and its evaluation", 26TH IEEE INTERNATIONAL CONFERENCE ON DISTRIBUTED COMPUTING SYSTEMS WORKSHOPS (ICDCSW'06), 4 July 2006 (2006-07-04), pages 1 - 6, XP010927637
See also references of EP 3846363A4
Attorney, Agent or Firm:
ISHII Yuichiro (JP)
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