Software defined radio unit and vehicular information system
First Claim
1. A software defined radio device comprising:
- a wireless communication system changeable a wireless communication specification by use of software;
the wireless communication system being loaded into a vehicle;
a computer controlling the wireless communication system;
a wireless communication specification changing function; and
a usage notification function receiving information about usage of the vehicle and notifying the information to the computer, wherein the wireless communication specification changing function is executed by the computer, and changes a specification of the wireless communication system when the usage of the vehicle is in a non-use state.
1 Assignment
0 Petitions
Accused Products
Abstract
An automatic upgrading method in which, when software is downloaded and upgraded to change a specification of a software defined radio system on a vehicular system, convenience to a user who receives services using wireless communication is not reduced and error operations of the vehicular system is inhibited, is provided. A state in which a vehicle is not used is the most appropriate for the upgrade. It is determined whether a key is removed. When the key is removed, the download is executed using wireless communications. After that, a software defined radio system and a car navigation system are stopped. The upgrade and test operation are executed. When the test result is good, the software defined radio system and the car navigation system are restarted.
30 Citations
20 Claims
-
1. A software defined radio device comprising:
-
a wireless communication system changeable a wireless communication specification by use of software;
the wireless communication system being loaded into a vehicle;
a computer controlling the wireless communication system;
a wireless communication specification changing function; and
a usage notification function receiving information about usage of the vehicle and notifying the information to the computer, wherein the wireless communication specification changing function is executed by the computer, and changes a specification of the wireless communication system when the usage of the vehicle is in a non-use state. - View Dependent Claims (2, 3, 4, 10, 11, 12, 13, 14, 15)
-
-
5. A software defined radio device comprising:
-
a wireless communication system loaded into a vehicle;
a computer controlling activation and termination of the wireless communication system;
a software changing function changing software executed by the computer; and
a usage notification function receiving information about a usage of the vehicle and notifying the information to the computer, wherein the software changing function downloads data about the software by use of the wireless communication system when the usage of the vehicle is in a non-use. - View Dependent Claims (6, 7, 8, 9)
-
-
16. A vehicular information system including a wireless communication system which can define a wireless communication specification by use of software and a computer which controls the wireless communication system, comprising:
-
a wireless communication specification changing function; and
a usage notification function for receiving information about usage of the vehicle and notifying the information to the computer, wherein the wireless communication specification changing function is executed by the computer, and changes a specification of the wireless communication system when usage of the vehicle is in a non-use state. - View Dependent Claims (17, 18)
-
-
19. A program for generating and outputting information in a software defined radio device having a computer which controls a vehicular wireless communication system which can define a wireless communication specification by use of software, the program comprising:
-
a step for forming a software defined radio system having a certain specification to process signals of transmission and reception required for wireless communications;
a step for receiving information about usage of the vehicle and for changing a specification of the software defined radio system when usage of the vehicle is in a non-use state; and
a step for stopping the changing process when the vehicle enters an in-use state during the changing process.
-
-
20. A program for generating and outputting information in a software defined radio device having a computer which controls a vehicular wireless communication system which can define a wireless communication specification by use of software, the software being divided into a plurality of blocks, the program comprising:
-
a step for forming a software defined radio system having a certain specification to process signals of transmission and reception required for wireless communications;
a step for receiving information about usage of the vehicle and for changing a specification of the software defined radio system when the vehicle is in a non-use state;
a step for stopping the changing process when the vehicle enters an in-use state during the changing process; and
a step for storing how far the blocks of the software have been downloaded during the changing process.
-
Specification