Systems and methods for generating a current time of day in a cellular radiotelephone
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 31, 1996
Grant Date -
N/A
app pub date -
Jan 5, 1995
filing date -
Jan 5, 1995
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A current time of day is generated in a cellular radiotelephone by monitoring changes in the registration ID (REGID) field of the overhead messages as the REGID is incremented. The cellular radiotelephone user is prompted to indicate a time of day, and a corresponding REGID value is obtained. The time interval between REGID updates is determined. When a current time of day is required, a current REGID value is obtained and a current time of day is calculated based on the user indicated time of day, the difference between the REGID values and the update interval. Current time of day may thereby be generated in cellular radiotelephone systems which do not broadcast a current time of day, without the need for real time clock chips in the cellular radiotelephone.
First Claim
Family
International Classification(s)
- [Classification Symbol]
- [Patents Count]
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