Patent ID: 9080884
Filing Date: 2015-07-14
Classification: G01C

Abstract:
1. A navigation device, comprising: a processor; and a memory storing computer readable instructions that, when executed by the processor, implement: an instruction receiving unit adapted to receive, from an external device, a processing instruction; a processing unit adapted to perform processing according to the instruction received by the instruction receiving unit; and an output unit adapted to output information obtained as a result of the processing performed by the processing unit; wherein the computer readable instructions, when executed by the processor, further implement a communication unit adapted to communicate with the external device through a communication network; wherein the instruction receiving unit is adapted to receive a processing instruction from the external device through the communication unit; wherein the output unit is adapted to send output information obtained as a result of the processing performed by the processing unit to the external device through the communication unit; wherein the computer readable instructions, when executed by the processor, further implement a state notification unit adapted to send, to the external device, a judgment specifying whether the navigation device is in a state allowing receipt of a processing instruction from the external device; wherein, once the navigation device has been turned on and has been in communication with the external device, the state notification unit is adapted to send the judgment independently of an action of a user of the navigation device; and wherein, when the navigation device is in a process of performing a route guidance, the judgment sent from the state notification unit specifies that the navigation device is not in a state allowing receipt of a processing instruction from the external device.