Browse Prior Art Database

SELECTIVE RECEPTION OF INDIVIDUAL CALLS

IP.com Disclosure Number: IPCOM000006134D
Original Publication Date: 1991-Apr-01
Included in the Prior Art Database: 2001-Dec-06
Document File: 2 page(s) / 84K

Publishing Venue

Motorola

Related People

Charles P. Schultz: AUTHOR

Abstract

Users of two-way radios with individual call capabilities may wish to qualify the reception of these calls. It may be desirable to block calls from other users, with the exception of those specified (such as supervisors, etc.), or in other circumstances it may be desirable to block the audible ergonomics of the call (during meetings, church, etc.) but still store the ID of the calling radio so a call-back can be made at a later time. These features would take advantage of the signalling handshaking that occurs between radios and the central controller when an individual call is attempted/made, and would also apply to any feature that audibly alerts a targeted individual radio.

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MOIVROLA INC. Technical Developments Volume 12 April 1991

SELECTIVE RECEPTION OF INDIVIDUAL CALLS

by Charles P. Schultz

  Users of two-way radios with individual call capabilities may wish to qualify the reception of these calls. It may be desirable to block calls from other users, with the exception of those specified (such as supervisors, etc.), or in other circumstances it may be desirable to block the audible ergonomics of the call (during meetings, church, etc.) but still store the ID of the calling radio so a call-back can be made at a later time. These features would take advantage of the signalling handshaking that occurs between radios and the central controller when an individual call is attempted/made, and would also apply to any feature that audibly alerts a targeted individual radio.

  ID's that are to be qualified may be stored in the radio or central controller memory. The ID's may be specified by user entry and/or pre-programming of the radio/central controller. This type of operation could be slaved to the mode (channel, personality, etc.) that the user is operating on (mode-slaved), or the user could be able to select this mode of operation from his radio keypad/menu (user-selectable). A radio initiating an individual call sends a request signalling word to the central controller containing its ID and the target radio's ID. If the central controller is performing the blocking, the calling radio's ID would

be compared to the list associated with the target radio's ID. If a match occurs, the call is processed normally. If the calling ID is not in the list, the central controller would respond to the calling radio that the target radio is...