Accession Number : ADD018265

Title :   Audio Information Apparatus for Providing Position Information.

Descriptive Note : Patent, FIled 5 Dec 94, patented 3 Sep 96,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Buchwitz, Guy R ; Muskat, David H

Report Date : 03 Sep 1996

Pagination or Media Count : 41

Abstract : An audio information apparatus for providing position information as to the location of a target comprising a global positioning system receiver affixed to the target for generating a string of fifty nine ASCII characters representing the latitude and longitude spherical coordinates of the global positioning receiver affixed to the target. The ASCII characters are supplied to a microprocessor, which in response to the ASCII characters, formulates a position message indicating the current location of the global positioning system receiver. A pair of voice recorder/playback circuits, coupled to the microprocessor, have a message table which includes 27 messages or words which when assembled in a predetermined sequence form a longitude and latitude coordinate position message. When the voice recorder/playback circuits are in a message cueing mode, the microprocessor provides a predetermined number of active low chip enable pulses to a selected one of the pair of voice recorder/playback circuits to select the desired word from the table. The microprocessor then disables the message cueing mode which, in turn, enables an audio amplifier of the selected one of the voice recorder/playback circuits. When the microprocessor provides a subsequent chip enable pulse the message is output from the voice recorder/playback circuit to a transmitter for transmission to a ground station. The microprocessor continues this process of utilizing the message cueing mode followed by audio playback addressing mode to output each word of the longitude and latitude coordinate position message from the voice recorder/playback circuits to the transmitter.

Descriptors :   *GLOBAL POSITIONING SYSTEM, *MESSAGE PROCESSING, *NAVIGATIONAL AIDS, *PATENTS, POSITION(LOCATION), MICROPROCESSORS, CHIPS(ELECTRONICS), TABLES(DATA), WORDS(LANGUAGE), GROUND STATIONS, VOICE COMMUNICATIONS, PLAYBACK, AUDIO AMPLIFIERS

Subject Categories : Navigation and Guidance
      Recording and Playback Devices

Distribution Statement : APPROVED FOR PUBLIC RELEASE