04803487 is referenced by 134 patents and cites 7 patents.

A personal message receiving apparatus is described including a portable communications receiver, intended to be carried by the user, which receives, detects and stores messages transmitted on a first radio frequency communication channel. The stored message is then subsequently transmitted over a second communications channel to a presentation unit having a second receiver which is intended to be carried by the user. The second receiver receives, and detects the message, and presents the message to the user in the form of a visual display. The message may also be stored.

Title
Portable communications receiver with separate information presentation means
Application Number
7/44875
Publication Number
4803487
Application Date
April 30, 1987
Publication Date
February 7, 1989
Inventor
Philip P Macnak
West Palm Beach
FL, US
David F Willard
Plantation
FL, US
Agent
Anthony J Sarli Jr
Vincent B Ingrassia
Michael J DeLuca
Assignee
Motorola
IL, US
IPC
H04Q 7/00
View Original Source