Dismiss
InnovationQ will be updated on Sunday, Oct. 22, from 10am ET - noon. You may experience brief service interruptions during that time.
Browse Prior Art Database

PAGER WITH RECEIVING CAPABILITIES WHILE OFF

IP.com Disclosure Number: IPCOM000006166D
Original Publication Date: 1991-Jul-01
Included in the Prior Art Database: 2001-Dec-10
Document File: 3 page(s) / 115K

Publishing Venue

Motorola

Related People

Pamela Rakolta: AUTHOR [+2]

Abstract

A problem in paging today is that you can not receive pages when the pager is off. People are becoming more aware of battery life and products are offering battery savings options such as auto on/off to encourage the user to conserve battery life by turning the pager off. The choice to the useT has been battery life or having the pager on at all times so as not to miss any pages. Therefore, the customer who chooses battery life can miss emergency pages.

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 50% of the total text.

Page 1 of 3

0 M

MOTOROLA INC. Technical Developments Volume 13 July 1991

PAGER WITH RECEIVING CAPABILITIES WHILE OFF

by Pamela Rakolta and Osvaldo Romero

  A problem in paging today is that you can not receive pages when the pager is off. People are becoming more aware of battery life and products are offering battery savings options such as auto on/off to encourage the user to conserve battery life by turning the pager off. The choice to the useT has been battery life or having the pager on at all times so as not to miss any pages. Therefore, the customer who chooses battery life can miss emergency pages.

  Another problem is that Over-the-Air (OTA) programming is offered as a feature but can not be taken advantage of if the pager is off. If the RCC wanted to disable/enable a customer's service, they would not be sure the OTA page was received because the end user's pager may be off at the time of transmis- sion. They may also someday want to enable a special feature for a given trial period using an OTA page, but they would have to send the OTA several times in case the customer's pager was off.

  The invention disclosed is readily implemented in a pager having a microcomputer providing decoding and control functions, and allows the user to receive pages while his/her pager is in the off mode and with a minimal decrease in battery life.

  The invention is accomplished by having the paging receiver reduce its receiver strobe percentage considerably. For instance, a current GSC product, the receiver on period in preamble search is 10% as shown in Fig. l.A and Fig 2.A. In a pager in which this invention is implemented, the receiver strobe period is reduced to a significantly smaller value, such as .5% or 1% as shown in Figs. l.B, l.C, 2.B, and 2.C. The terminal extends the preamble length for the particular page. (See Fig. 1 for GSC timing examples, and Fig. 2 for POCSAG timing examples)

  This invention is most useful in pagers needing to receive emergency pages or OTA pages and is imple- mented as follows:

16

1. The pager would be programmed with functions defined in the codeplug as Emergency or OTA.

  2. The RCC would extend the preamble length to match the pager's off receiver strobe rate to guarantee the pager will detect the preamble with its minimal receiver on time.

  3. When the pager is on, it would receive all pages as usual. When the pager is off, it would only allow "E" or "OTA" pages to be alerted or stored even though there exist a small possibility...