Cellular telephone unit with prioritized frequency acquisition
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 10, 1990
Grant Date -
N/A
app pub date -
Jul 25, 1988
filing date -
Jul 25, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A cellular telephone unit includes selective carrier signal acquisition. Priority of acquisition is given to carrier signals associated with home system identification codes (SIDs), then to any carrier signal associated with a non-excluded SID. Any attempt to dial an emergency call (e.g., a 911 call) overrides any lockout of excluded SIDs. A display such as 'roam' and 'no service' lights is used selectively to indicate to the user the availability of home and/or non-excluded carrier signals.
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