Power supplying to CPU of telephone
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Oct 16, 2001
Grant Date -
N/A
app pub date -
Jul 28, 1998
filing date -
Jul 28, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An automatic power supplying device for providing power for a CPU of a telephone to activate the CPU and wake up a downstream circuit including for example a speech processor, a voice amplifier, etc., is disclosed. The automatic power supplying device includes a recharging circuit providing the power for the CPU for a predetermined period when there is a coining phone call and the telephone is hooked off. After the predetermined period, the CPU is supplied thereto power which is transmitted along the telephone line and accompanies the phone call signal. The CPU of the telephone is activated only when the telephone is in a hook-off state according to the present invention so that the life span of the CPU can be extended, compared to the conventional telephone.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
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