Radio paging system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Oct 9, 2001
Issued Date -
N/A
app pub date -
Feb 26, 1998
filing date -
Jun 27, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In a radio paging system wherein a user carrying a radio paging receiver is paged by means of radio waves, and the radio paging receiver sends back a response signal when it has received a paging signal addressed to itself, the response signal is sent back by means of direct sequence modulation using a code uniquely determined in accordance with the base station ID signal, which is different for each base station, and which has been inserted in the paging signal sequence transmitted from the base station, or in accordance with the order of each paging signal within the paging signal sequence. As a result, the response signal can be transmitted at low power from each radio paging receiver, and effective utilization can be made of frequency, regardless of an increase in the number of radio pagers.
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