Program rewriting apparatus
First Claim
Patent Images
1. A program rewriting apparatus comprising:
- a normal program storing portion for storing a normal program containing the control procedure of the equipment that incorporates the program rewriting apparatus and a spare rewriting program;
a rewriting program storing portion for storing a rewriting program containing a reception procedure for receiving said normal program and a spare rewriting program from an external device and an overwrite procedure for overwriting said normal program and said spare rewriting program received over said normal program storing portion; and
a control device for executing the overwrite of said normal program and said spare rewriting program in accordance with the reception and overwrite procedures of a rewriting program in a first period and for copying said spare rewriting program overwritten over said normal program storing portion to said rewriting program storing portion in accordance with said normal program in a second period different from said first period.
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Accused Products
Abstract
The normal program storing portion stores a normal program containing a control procedure of the program rewriting apparatus and a spare rewriting program. In a first period, the control device overwrites the received normal and spare rewriting programs on the normal program storing portion. In a second period different from the first period, the control device copies the spare rewriting program overwritten on the normal program storing portion to the rewriting program storing portion in accordance with the overwritten normal program.
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Citations
16 Claims
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1. A program rewriting apparatus comprising:
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a normal program storing portion for storing a normal program containing the control procedure of the equipment that incorporates the program rewriting apparatus and a spare rewriting program;
a rewriting program storing portion for storing a rewriting program containing a reception procedure for receiving said normal program and a spare rewriting program from an external device and an overwrite procedure for overwriting said normal program and said spare rewriting program received over said normal program storing portion; and
a control device for executing the overwrite of said normal program and said spare rewriting program in accordance with the reception and overwrite procedures of a rewriting program in a first period and for copying said spare rewriting program overwritten over said normal program storing portion to said rewriting program storing portion in accordance with said normal program in a second period different from said first period. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A program rewriting apparatus comprising:
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a normal program storing portion for storing a normal program containing a control procedure of the equipment incorporating said program rewriting apparatus;
a rewriting program storing portion for storing a rewriting program containing a reception procedure for receiving said normal program from an external device and an overwrite procedure for overwriting said received normal program over said normal program storing portion; and
a control device for executing the update of the stored content of said normal program storing portion in accordance with said rewriting program and the update of the stored content of said rewriting program storing portion in different periods.
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9. A program rewriting apparatus comprising:
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a normal program storing portion for storing a normal program containing a control procedure of the equipment incorporating said program rewriting apparatus;
a rewriting program storing portion for storing a rewriting program containing a reception procedure for receiving said normal program from an external device and an overwrite procedure for overwriting said received normal program over said normal program storing portion; and
a control device for executing the overwrite of said normal program in accordance with said reception and overwrite procedures of the rewriting program in a first period and for receiving said rewriting program from the external device and overwriting said received rewriting program over the rewriting program storing portion in accordance with said normal program in a second period different from the first one. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. A program rewriting apparatus comprising:
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a normal program storing portion for storing a normal program containing the control procedure of the equipment incorporating the program rewriting apparatus;
a spare rewriting program storing portion for storing a spare rewriting program;
a rewriting program storing portion for storing a rewriting program containing a first rewrite procedure composed of a first reception procedure for receiving said spare rewriting program from an external device and a first overwrite procedure for overwriting said spare rewriting program received over said spare rewriting program storing portion and a second rewrite procedure composed of a second reception procedure for receiving said normal program from an external device and a second overwrite procedure for overwriting said normal program received over said normal program storing portion; and
a control device for executing the overwrite of said spare rewriting program in accordance with said first reception and said first overwrite procedures of a rewriting program in a first period and for copying said spare rewriting program overwritten over said spare rewriting program storing portion to said rewriting program storing portion in a second period different from the first one.
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Specification