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

RADIO COMBINATION LOCK

IP.com Disclosure Number: IPCOM000007340D
Original Publication Date: 1995-Mar-01
Included in the Prior Art Database: 2002-Mar-18
Document File: 1 page(s) / 65K

Publishing Venue

Motorola

Related People

Michael A. Moore: AUTHOR

Abstract

Consumers have expressed a need to limit unauthorized access to their radios. Reasons for this could be to limit undesired monitoring or access to a system. An answer to this request is a feature called Radio Lock. On power up, a radio with the Radio Lock feature enabled requires that the user enter a password before access to any of the other radio fea- tures is allowed. This includes transmit, receive as well as access to the radio menus. This password, stored in the radio's EEPROM, is composed of a variable numbers of digits with values ranging from 0 to 9. It can be programmed either directly by the user, assuming the radio is unlocked, or from the Radio Service Software. Hardware requirements to utilize this feature is a radio with a full keypad (0-9,*,#). Radios without a fit11 keypad cannot employ this feature.

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 60% of the total text.

Page 1 of 1

0 M

MOTOROLA Technical Developments Volume 24 March 1995

RADIO COMBINATION LOCK

by Michael A. Moore

  Consumers have expressed a need to limit unauthorized access to their radios. Reasons for this could be to limit undesired monitoring or access to a system. An answer to this request is a feature called Radio Lock. On power up, a radio with the Radio Lock feature enabled requires that the user enter a password before access to any of the other radio fea- tures is allowed. This includes transmit, receive as well as access to the radio menus. This password, stored in the radio's EEPROM, is composed of a variable numbers of digits with values ranging from 0 to 9. It can be programmed either directly by the user, assuming the radio is unlocked, or from the Radio Service Software. Hardware requirements to utilize this feature is a radio with a full keypad (0-9,*,#). Radios without a fit11 keypad cannot employ this feature.

  This invention offers the user without a full keypad the ability to utilize the Radio Lock feature. Called the Radio Combination Lock, this feature allows portable or mobile radio users equipped with a channel selector or channel up/down buttons to protect his/her radio from unauthorized access.

  On power-up, the user is required to enter a com- bination sequence. For non-display portables, the channel selector switch could be used. For display portable or mobile without a full keypad, a two digit number is displayed and the arrow keys (portable) or th...