US006044260A [ii] Patent Number: 6,044,260  Date of Patent: Mar. 28,2000
 METHOD OF CONTROLLING THE
NUMBER OF MESSAGES RECEIVED BY A
PERSONAL MESSAGING UNIT
 Inventors: Eric Thomas Eaton, Lake Worth;
Michael Joseph DeLuca, Boca Raton, both of Fla.
 Assignee: Motorola, Inc., Schaumburg, 111.  Appl. No.: 08/926,581
A subscriber's PMU (Personal Messaging Unit) (14) determines when the number of incoming messages is likely to be excessive by counting the incoming messages and comparing their number and rate of receipt to stored thresholds. The subscriber is alerted when an excess is detected, and he is given options such as: routing future messages to himself via alternate and less expensive communication links (34,38), or terminating messages sent to one of his PMU's addresses that has been receiving messages at a high rate. Similar control can be effected at the PMU's base station (12).
14 Claims, 4 Drawing Sheets