David T Flanagan

US Patent:

58059946, Sep 8, 1998

Filed:

Apr 3, 1996

Appl. No.:

8/624346

Inventors:

John A. Perreault - Hopkinton MA
David R. Flanagan - Framingham MA
Katherine A. Unger - Wrentham MA

Assignee:

Motorola, Inc. - Schaumburg IL

International Classification:

H04Q 720
H04B 700

US Classification:

455435

Abstract:

A plurality of secondary stations (10. sub. a through 10. sub. n) are coupled to a primary station (8) by way of a shared communication medium (15, 16). The secondary stations (10. sub. a through 10. sub. n) sends information to the primary channel on the upstream channel. The primary station sending information to the secondary stations (10. sub. a through 10. sub. n) on a downstream channel. The power level of a secondary station (10. sub. n) is set at the power level stored in secondary station memory (55). The secondary station (10. sub. n) transmits a message to the primary station on the upstream channel. The primary station (8) receives the message, determines the power level of the received message, and sets the power level of the secondary device to the nominal power level.