Browse Prior Art Database

LOCAL INFRARED CONTROL OF RECEIVER ALERTS

IP.com Disclosure Number: IPCOM000006152D
Original Publication Date: 1991-Apr-01
Included in the Prior Art Database: 2001-Dec-07
Document File: 1 page(s) / 59K

Publishing Venue

Motorola

Related People

Mike DeLuca: AUTHOR

Abstract

In the case of selective call receivers, such as pagers, it is common to switch between audible and silent alerts by means of a manual switch located on the exterior of the pager. The principle shortcoming of this approach is that it relies on the user to execute the manual switching. Therefore, should the user forget to switch to silent alert in a conference room scenario, an audible alert might be generated, thus disturbing all participants in the conference room or meeting. This problem can be overcome by utilizing the system shown in Fig. 1.

This text was extracted from a PDF file.
At least one non-text object (such as an image or picture) has been suppressed.
This is the abbreviated version, containing approximately 63% of the total text.

Page 1 of 1

0 M

MOlOROLA INC. Technical Developments Volume 12 April 1991

LOCAL INFRARED CONTROL ~

OF RECEIVER ALERTS ~

by Mike DeLuca

   In the case of selective call receivers, such as pagers, it is common to switch between audible and silent alerts by means of a manual switch located on the exterior of the pager. The principle shortcoming of this approach is that it relies on the user to execute the manual switching. Therefore, should the user forget to switch to silent alert in a conference room scenario, an audible alert might be generated, thus disturbing all participants in the conference room or meeting. This problem can be overcome by utilizing the system shown in Fig. 1.

A typical pager receiver 10 processes modulated selective call signals which are received via antenna
12. If the recovered receiver address matches any of the stored addresses in the receiver, an alert generator 14 is activated. Alert generator 14 in turn activates the appropriate alert means which includes light 16, a vibrator 18, and an audio speaker 20.

  The alert mode selected by means of the above referred manual alert mode switch can be overridden in selected areas within a selective call site by an

infrared signal received/ by infrared detector 22. At least one infrared alert controller 24 is placed in areas within a selective call sate where it is desired to operate each selective call receiver in a predetermined alert mode. An encoded infrared signal 26 is transmitted by the infrared controlle...