2287383-A is referenced by 34 patents.

A data message (Fig. 2 not shown 201) is transmitted 301 to a plurality of communication units (Fig.1 not shown 103, 105, 107, and 109). The data message (201) is received 401 by the plurality of communication units, which determine 403 whether the quality or anticipated quality of the received data message is acceptable. When at least one of the plurality of communication units determines that the received data message is of unacceptable quality or anticipated quality, the at least one of the plurality of communication units transmits 411 an energy burst (203) in a predetermined time window. Upon detection of the energy burst (203), the transmitting device may retransmit 309 the data message to the plurality of communication units, or may establish a communication link of a selected quality or offer a communication of a different quality.

Title
Notification by energy burst of messages with unacceptable quality
Application Number
GB19940004666 19940311
Publication Number
2287383 (A)
Application Date
March 11, 1994
Publication Date
September 13, 1995
Inventor
Robinson William Neil
Assignee
Motorola
GB
IPC
H04L 12/26
H04L 01/08
H04L 01/16
H04L 01/08
H04L 01/00
H04L 01/16
H04L 01/08
H04L 01/00
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