Dial pulse sensor and repeater circuit
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Oct 28, 1980
Grant Date -
N/A
app pub date -
Feb 21, 1979
filing date -
Feb 21, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A line voltage sensor and dial pulse repeater circuit for use in conjunction with a digital PABX telephone system connecting a subscriber station to a switching center providing for detection of off-hook condition of the subscriber's set, detection of irregularly shaped dial pulse and correction of the irregularly shaped dial pulses to allow accurate reconstruction of the dial pulses originally transmitted via the subscriber's set.
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