Patent ID: 8311732
Filing Date: 2012-11-13
Classification: G01C

Abstract:
1. A navigation device, comprising: a logic subsystem including one or more physical devices and configured to execute instructions; a communication subsystem to communicate with a remote navigation database via a gateway, the communication subsystem configured to use parent self-identifying elements including a parent variable-size data payload, a parent size-identifier, and a parent content-identifier, the parent content-identifier identifying the parent variable-size data payload as including a plurality of nested child self-identifying elements, each nested child self-identifying element including a child variable-size data payload, a child size-identifier, and a child content-identifier, the parent size-identifier specifying a combined size of the plurality of nested child self-identifying elements; and a navigation subsystem to determine a current position of the navigation device and to encode the current position of the navigation device as one or more child position payloads to be sent from the communication subsystem to the remote navigation database via the gateway, each child position payload to be sent as one of the plurality of nested child self-identifying elements included as part of the parent variable-size data payload.