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Browse Prior Art Database

USING AN INFRARED SENSOR TO PROGRAM PAGERS

IP.com Disclosure Number: IPCOM000006525D
Original Publication Date: 1992-Aug-01
Included in the Prior Art Database: 2002-Jan-11
Document File: 2 page(s) / 85K

Publishing Venue

Motorola

Related People

Christopher R. Long: AUTHOR

Abstract

There arc currently only a limited number of ways to input programming information into pagers, mostly through the use of contacts mounted just inside the hous- ing behind the battery door. These designs rely on gold contact fingers touching gold pads on the circuit board to provide good electrical connection for data transfer. This gold is very soft, so factory fixtures running high volumes of pagers often have problems with the fixture contact fingers wearing and causing intermittancies and poor data transmission. This results in a need to regu- larly change the programming contacts in order to insure high programming reliability.

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MOTOROLA INC. Technical Developments Volume 16 August 1992

USING AN INFRARED SENSOR TO PROGRAM PAGERS

by Christopher R. Long

  There arc currently only a limited number of ways to input programming information into pagers, mostly through the use of contacts mounted just inside the hous- ing behind the battery door. These designs rely on gold contact fingers touching gold pads on the circuit board to provide good electrical connection for data transfer. This gold is very soft, so factory fixtures running high volumes of pagers often have problems with the fixture contact fingers wearing and causing intermittancies and poor data transmission. This results in a need to regu- larly change the programming contacts in order to insure high programming reliability.

  On pagers having a clock option, customers have no convenient way to set the time after the memory is lost, such as following the replacement of a dead battery without the use of complicated input sequences designed to utilize existing controls. An infrared sensor can be provided which is utilized to receive information trans- mitted from a conventional remote control device which is common in over 50% of American homes. The pager would then be re-programmable with customer specific options by the customer with stored numeric information such as phone numbers, date, or time of day by the customer using a simple VCR remote control.

The sensor would be mounted on the PCB behind a translucent window and would eliminate the need for

contacts and the mechanical parts needed to interface with them. The sensor is coupled to the existing microprocessor to decode the received infrared infor- mation and turn it into useful data....