Title:
MITIGATING AN INDUCED ELECTRICAL SIGNAL FROM AN APPLIANCE IN A POWERED-OFF STATE
Document Type and Number:
WIPO Patent Application WO/2017/192862
Kind Code:
A3
Abstract:
An isolation unit may include input pins to receive an electrical signal induced by ambient sound waves incident on an appliance in a powered-off state, one or more first transformers, connected to the input pins, to electrically isolate the induced electrical, one or more second transformers, connected to the first transformers, to provide a common mode choke function on the induced electrical signal, one or more inductors, connected to the one or more second transformers, one or more resistors, connected to the one or more inductors, wherein the one or more inductors and the one or more resistors are configured to limit an amplitude of a current of the induced electrical signal, and output pins, connected to the one or more inductors, to receive a modified electrical signal from the one or more inductors to propagate the modified electrical signal to a downstream cable.
Inventors:
GAVIN DANIEL (US)
KOENIG FREDERICK E (US)
KOENIG FREDERICK E (US)
Application Number:
PCT/US2017/031082
Publication Date:
July 26, 2018
Filing Date:
May 04, 2017
Export Citation:
Assignee:
CIS SECURE COMPUTING INC (US)
International Classes:
H04B3/30; H04B3/20
Foreign References:
| US20090067614A1 | 2009-03-12 | |||
| US20150003620A1 | 2015-01-01 | |||
| EP1764780A1 | 2007-03-21 | |||
| US20090195303A1 | 2009-08-06 | |||
| US20090108964A1 | 2009-04-30 |
Attorney, Agent or Firm:
O'BRIEN, Michelle et al. (US)
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