Gm Global Technolgoy Operations, Inc.

Jaycee Murlidar

Nathan D Ampunan

John P Weiss

Jason W Clark

Ryan J Wasson

A method for arbitrating between vehicle navigation systems in the event that multiple systems are concurrently activated so that information is provided to a user by only one navigation system at a time. This method of arbitration reduces the possibility of user confusion that could otherwise occur if multiple vehicle navigation systems were simultaneously providing the user with information. According to one embodiment, the arbitration method is used in conjunction with a telematics-based system and a CD-based system that both provide turn-by-turn spoken driving directions. The method can also be used to arbitrate between any vehicle-based sources of electronically-supplied audio speech, particularly where the systems are connected to a common vehicle network that allows software control of the different vehicle systems.

Method for arbitrating between multiple vehicle navigation systems

A method of managing communications for an in-vehicle telematics system includes substantially simultaneously receiving requests for communicating first and second audio signals via a vehicle audio system. The signals respectively correspond to interactive voice services (provided via a menu dialogue) from a first in-vehicle system and to a first audio messaging from a second in-vehicle system. An arbitration control selects one of the signals as a priority output and the other as a subordinate output. The priority output is provided over the audio system. A queue manager maintains the subordinate output in a queue for outputting over the audio system after priority output completion. If the first signal is the subordinate output, then the queue manager maintains a state of the menu dialogue, as of a time the priority output is selected, for continuation of the menu dialogue from the maintained state after priority output completion.

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Troy, MI, United States of America

Jaycee Murlidar