Navigation system
First Claim
1. A navigation system for a vehicle, comprising:
- a central processing unit mounted on said vehicle for executing a plurality of programs including a plurality of navigation programs, a transmitting program and a selection program;
an external storage device mounted on said vehicle for storing therein said navigation programs and said selection program;
an internal nonvolatile storage device mounted on said vehicle for storing therein said transmitting program;
an inner bus mounted on said vehicle for having said central processing unit electrically connected to said internal nonvolatile storage device to permit signals to be transmitted between said central processing unit and said internal nonvolatile storage device; and
an interface unit having said external storage device electrically connected to said inner bus to permit said external storage device to be brought in communication with said central processing unit and said internal nonvolatile storage device,when a vehicle driver requests exchange of said navigation programs, said central processing unit being firstly operated to execute said selection program to have a vehicle driver select one from said navigation programs stored in said external storage device, being secondly operated to execute said transmitting program to read the selected navigation program from said external storage device and store the read navigation program in said internal nonvolatile storage device, and being thirdly operated to repeat the execution of the navigation program stored in said internal nonvolatile storage device to provide said vehicle driver with navigation information.
1 Assignment
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Accused Products
Abstract
A navigation system for a vehicle comprises a central processing unit for executing a plurality of programs including a navigation program and a transmitting program, and an internal nonvolatile storage device electrically connected to the central processing unit through an inner bus and storing therein the transmitting program. The navigation system further comprises an external storage device electrically connected to the inner bus through an interface unit and storing therein the navigation program. The central processing unit is initially operated to execute the transmitting program to read the navigation program from the external storage device and store the read navigation program in the internal nonvolatile storage device, and subsequently operated to repeat the execution of the navigation program stored in the internal nonvolatile storage device to provide a vehicle driver with navigation information including the current location of the vehicle.
43 Citations
25 Claims
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1. A navigation system for a vehicle, comprising:
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a central processing unit mounted on said vehicle for executing a plurality of programs including a plurality of navigation programs, a transmitting program and a selection program; an external storage device mounted on said vehicle for storing therein said navigation programs and said selection program; an internal nonvolatile storage device mounted on said vehicle for storing therein said transmitting program; an inner bus mounted on said vehicle for having said central processing unit electrically connected to said internal nonvolatile storage device to permit signals to be transmitted between said central processing unit and said internal nonvolatile storage device; and an interface unit having said external storage device electrically connected to said inner bus to permit said external storage device to be brought in communication with said central processing unit and said internal nonvolatile storage device, when a vehicle driver requests exchange of said navigation programs, said central processing unit being firstly operated to execute said selection program to have a vehicle driver select one from said navigation programs stored in said external storage device, being secondly operated to execute said transmitting program to read the selected navigation program from said external storage device and store the read navigation program in said internal nonvolatile storage device, and being thirdly operated to repeat the execution of the navigation program stored in said internal nonvolatile storage device to provide said vehicle driver with navigation information. - View Dependent Claims (2)
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3. A navigation system for a vehicle, comprising:
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a central processing unit mounted on said vehicle for executing a plurality of programs including a plurality of navigation programs, a transmitting program and a selection program; an external storage device mounted on said vehicle for storing therein said navigation programs and said selection program; an internal nonvolatile storage device mounted on said vehicle for storing therein said transmitting program; an inner bus mounted on said vehicle for having said central processing unit electrically connected to said internal nonvolatile storage device to permit signals to be transmitted between said central processing unit and said internal nonvolatile storage device; an interface unit having said external storage device electrically connected to said inner bus to permit said external storage device to be brought in communication with said central processing unit and said internal nonvolatile storage device, said internal nonvolatile storage device including a read-only memory storing therein said transmitting program and an erasable programmable read-only memory; and when a vehicle driver requests exchange of said navigation programs, said central processing unit being firstly operated to execute said selection program to have a vehicle driver select one from said navigation programs stored in said external storage device, being secondly operated to execute said transmitting program to read the selected navigation program from said external storage device and store the read navigation program in said erasable programmable read-only memory, and being thirdly operated to repeat the execution of the navigation program stored in said erasable programmable read-only memory to provide said vehicle driver with navigation information. - View Dependent Claims (4, 5, 6, 7, 8, 9)
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10. A navigation system for a vehicle, comprising:
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a central processing unit mounted on said vehicle for executing a plurality of programs including a plurality of navigation programs, a transmitting program and a selection program; an external storage device mounted on said vehicle for storing therein said navigation programs and said selection program; an internal nonvolatile storage device mounted on said vehicle for storing therein said transmitting program; an inner bus mounted on said vehicle for having said central processing unit electrically connected to said internal nonvolatile storage device to permit signals to be transmitted between said central processing unit and said internal nonvolatile storage device; an interface unit having said external storage device electrically connected to said inner bus to permit said external storage device to be brought in communication with said central processing unit and said internal nonvolatile storage device; said internal nonvolatile storage device including a read-only memory storing therein said transmitting program and an erasable programmable read-only memory; when a vehicle driver requests exchange of said navigation programs, said central processing unit being firstly operated to execute said selection program to have a vehicle driver select one from said navigation programs stored in said external storage device, being secondly operated to execute said transmitting program to read the selected navigation program from said external storage device and store the read navigation program in said erasable programmable read-only memory, and being thirdly operated to repeat the execution of the navigation program stored in said erasable programmable read-only memory to provide said vehicle driver with navigation information; said navigation program stored in said erasable programmable read-only memory having error detecting codes; said read-only memory storing therein an error check program to be executed by said central processing unit to detect the error of said navigation program stored in said erasable programmable read-only memory on the basis of said error detecting codes of said navigation program; and said central processing unit being operated to execute said transmitting program to correct said navigation program stored in said erasable programmable read-only memory when the error of said navigation program stored in said erasable programmable read-only memory is detected by executing said error check program. - View Dependent Claims (11, 12, 13)
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14. A navigation system for a vehicle, comprising:
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a central processing unit mounted on said vehicle for executing a plurality of programs including a plurality of navigation programs, a transmitting program and a selection program; an external storage apparatus exterior to said vehicle and storing therein said navigation programs and said selection program; an internal nonvolatile storage device mounted on said vehicle and storing said transmitting program; an inner bus mounted on said vehicle and having said central processing unit electrically connected to said external storage apparatus and said internal nonvolatile storage device to permit signals to be transmitted between said central processing unit and said external storage apparatus; and a communication apparatus partly mounted on and partly exterior to said vehicle, and having said external storage apparatus electrically connected to said inner bus to permit said external storage apparatus to be brought in communication with said central processing unit and said internal nonvolatile storage device; and when a vehicle driver requests exchange of said navigation programs, said central processing unit being firstly operated to execute said selection program to have a vehicle driver select one from said navigation programs stored in said external storage device, being secondly operated to execute said transmitting program to read the selected navigation program from said external storage apparatus through said communication apparatus and store the read navigation program in said internal storage device, and being thirdly operated to repeat the execution of the navigation program stored in said internal storage device to provide said vehicle driver with navigation information.
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15. A navigation system for a vehicle, comprising:
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a central processing unit mounted on said vehicle for executing a plurality of programs including a plurality of navigation programs, a transmitting program and a selection program; an external storage apparatus exterior to said vehicle and storing therein said navigation programs and said selection program; an internal nonvolatile storage device mounted on said vehicle and storing said transmitting program; an inner bus mounted on said vehicle and having said central processing unit electrically connected to said external storage apparatus and said internal nonvolatile storage device to permit signals to be transmitted between said central processing unit and said external storage apparatus; a communication apparatus partly mounted on and partly exterior to said vehicle, and having said external storage apparatus electrically connected to said inner bus to permit said external storage apparatus to be brought in communication with said central processing unit and said internal nonvolatile storage device, said internal nonvolatile storage device including a read-only memory storing therein said transmitting program and an erasable programmable read-only memory; and when a vehicle driver requests exchange of said navigation programs, said central processing unit being firstly operated to execute said selection program to have a vehicle driver select one from said navigation programs stored in said external storage device, being secondly operated to execute said transmitting program to read the selected navigation program from said external storage apparatus through said communication apparatus and store the read navigation program in said erasable programmable read-only memory, and being thirdly operated to repeat the execution of the navigation program stored in said erasable programmable read-only memory to provide said vehicle driver with navigation information. - View Dependent Claims (16, 17, 18, 19, 20, 21)
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22. A navigation system for a vehicle, comprising:
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a central processing unit mounted on said vehicle for executing a plurality of programs including a plurality of navigation programs, a transmitting program and a selection program; an external storage device mounted on said vehicle for storing therein said navigation programs and said selection program; an internal nonvolatile storage device mounted on said vehicle and storing said transmitting program; an inner bus mounted on said vehicle and having said central processing unit electrically connected to said external storage apparatus and said internal nonvolatile storage device to permit signals to be transmitted between said central processing unit and said external storage apparatus; a communications apparatus partly mounted on and partly exterior to said vehicle, and having said external storage apparatus electrically connected to said inner bus to permit said external storage apparatus to be brought in communication with said central processing unit and said nonvolatile storage device; said internal nonvolatile storage device including a read-only memory storing therein said transmitting program and an erasable programmable read-only memory; when a vehicle driver requests exchange of said navigation programs, said central processing unit being firstly operated to execute said selection program to have a vehicle driver select one from said navigation programs stored in said external storage device, being secondly operated to execute said transmitting program to read the selected navigation program from said external storage device and store the read navigation program in said erasable programmable read-only memory, and being thirdly operated to repeat the execution of the navigation program stored in said erasable programmable read-only memory to provide said vehicle driver with navigation information; said navigation program stored in said erasable programmable read-only memory having error detecting codes; said read-only memory storing therein an error check program to be executed by said central processing unit to detect the error of said navigation program stored in said erasable programmable read-only memory on the basis of said error detecting codes of said navigation program; and said central processing unit being operated to execute said transmitting program to correct said navigation program stored in said erasable programmable read-only memory when the error of said navigation program stored in said erasable programmable read-only memory is detected by executing said error check program. - View Dependent Claims (23, 24, 25)
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Specification