Browse Prior Art Database

PROGRAMMING THE FREQUENCY OF A FREQUENCY SYNTHESIZED PAGER

IP.com Disclosure Number: IPCOM000005680D
Original Publication Date: 1987-Oct-01
Included in the Prior Art Database: 2001-Oct-25
Document File: 2 page(s) / 85K

Publishing Venue

Motorola

Related People

Avi Azoulai: AUTHOR

Abstract

As the size of pagers is reduced, it becomes more difficult to provide the user with individual controls for controlling the many and varied functions of a pager. The problem is compounded when the pager is pro- vided with a frequency synthesizer which allows the user the opportunity to select from a number of different operating frequencies. Such a pager, as described, would be beneficial to a user who is a frequent traveler, mov- ing from city to city on a regular basis.

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 2

MOTOROLA Technical Developments Volume 7 October 1987

PROGRAMMING THE FREQUENCY OF A FREQUENCY SYNTHESIZED PAGER

by Avi Azoulai

   As the size of pagers is reduced, it becomes more difficult to provide the user with individual controls for controlling the many and varied functions of a pager. The problem is compounded when the pager is pro- vided with a frequency synthesizer which allows the user the opportunity to select from a number of different operating frequencies. Such a pager, as described, would be beneficial to a user who is a frequent traveler, mov- ing from city to city on a regular basis.

   A typical pager used for displaying numeric or alphanumeric information is shown below. As can be seen, mutiple functions are assigned to each of the pager controls, or keys. Functions such as READ, HOLD and VOLUME are selected by actuating the individual key. Alternate functions, such as LOCK, DELETE and PRINT are selected by first actuating the SHIFT key.

   Programming of the frequencies on which the pagerwill operate can be accomplished with the same keys using the display to prompt the user for the programming sequence. One example of a frequency programming sequence is shown in Figure 1. In the example shown, the frequency programming mode is entered by holding the SHIFT key depressed for a period of time, such as five seconds. The display then prompts the user if the programming mode was to be selected. Actuating the RESET would return to the normal operating mode. Ac-...