Audio signal adapter device, interface detecting system of the same and electronic signature token
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 2, 2017
Issued Date -
N/A
app pub date -
Jun 14, 2013
filing date -
Sep 13, 2012
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An audio signal adapter device detects whether a sequence of a microphone pin and a ground pin of an apparatus with an audio plug matches a detecting device into which the audio plug is inverted. The device includes a first interface having an audio signal receiving pin, a microphone pin and a ground pin, and a second interface having an audio signal output pin. An audio signal amplifying circuit is configured to amplify an audio signal received by the audio signal receiving pin and to output the amplified audio signal to the audio signal output pin. The audio signal received by the audio signal receiving pin flows to the microphone pin or ground pin via an impedance equivalent part of an audio signal amplifying circuit. The impedance circuit is coupled between the microphone pin and ground pin. An interface detecting system and an electronic signature token are also provided.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully