Title:
COMMUNICATION DEVICE AND ACTIVE CABLE
Document Type and Number:
WIPO Patent Application WO/2022/034897
Kind Code:
A1
Abstract:
A communication device 111 included in an active cable comprises a control unit 11, a comparator 12, a resistor 13, a voltage source 14, and a redriver 16. The comparator 12 receives the inputs of a voltage value of a SBU signal line and a reference voltage value output from the voltage source 14, and compares the magnitude of the voltage value of the SBU signal line with the magnitude of the reference voltage value to detect the level of a sideband signal. The control unit 11 receives the result of detection of the sideband signal level from the comparator 12, and if the sideband signal level is L level for a certain period of time or more, puts the redriver 16, which is an active device, into a low power consumption state.
Inventors:
FUJITA YUSUKE (JP)
Application Number:
PCT/JP2021/029643
Publication Date:
February 17, 2022
Filing Date:
August 11, 2021
Export Citation:
Assignee:
THINE ELECTRONICS INC (JP)
International Classes:
G06F3/00; G06F13/38; H04B10/075
Foreign References:
| US20190317774A1 | 2019-10-17 |
Other References:
APPLE INC. , HEWLETT-PACKARD INC, INTEL CORPORATION,MICROSOFT CORPORATION,RENESAS CORPORATION,STMICROELECTRONICS,TEXAS INSTRUMENTS: "Universal Serial Bus 4 (USB4™) Specification", VERSION 1.0, 1 August 2019 (2019-08-01), pages 12,13,17,21,22,76,77 - 468-477, XP093017029
"The USB 3.2 Specification released on September 22, 2017, and ECNs", USB IMPLEMENTERS FORUM, 6 August 2020 (2020-08-06), Retrieved from the Internet
USB4 SPECIFICATION'', [ONLINE], USB IMPLEMENTERS FORUM, 6 August 2020 (2020-08-06)
USB TYPE-C CABLE AND CONNECTOR SPECIFICATION REVISION 2.0, 6 August 2020 (2020-08-06), Retrieved from the Internet
USB POWER DELIVERY'', [ONLINE], USB IMPLEMENTERS FORUM, 6 August 2020 (2020-08-06)
"The USB 3.2 Specification released on September 22, 2017, and ECNs", USB IMPLEMENTERS FORUM, 6 August 2020 (2020-08-06), Retrieved from the Internet
USB4 SPECIFICATION'', [ONLINE], USB IMPLEMENTERS FORUM, 6 August 2020 (2020-08-06)
USB TYPE-C CABLE AND CONNECTOR SPECIFICATION REVISION 2.0, 6 August 2020 (2020-08-06), Retrieved from the Internet
USB POWER DELIVERY'', [ONLINE], USB IMPLEMENTERS FORUM, 6 August 2020 (2020-08-06)
Attorney, Agent or Firm:
HASEGAWA Yoshiki et al. (JP)
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