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US 2006/0133560 A1Published application
Counter device and counting method
AssigneeKyocera Mita Corporation
InventorSeigo Takagi
Life of this patent
Estimating the term…
Abstract
A counter device includes: a rewritable counter having a non-volatile memory which requires sector erasure to once turn all data in a sector into high data, prior to changing low data into high data in respective bits; and a control section updating a counter value of the rewritable count by writing in and reading out the data with respect to the rewritable counter using a complement of 1, and thereby controlling writing in and reading out the data of the rewritable counter.
Claims6
A counter device comprising:
- a rewritable counter having a non-volatile memory which requires sector erasure to once turn all data in a sector into high data, prior to changing low data into high data in respective bits;
- and
- a control section updating a counter value of the rewritable counter by writing in and reading out the data with respect to the rewritable counter using a complement of 1, and thereby controlling writing in and reading out the data of the rewritable counter.
A counter device comprising:
- a rewritable counter having a non-volatile memory which requires sector erasure to once turn all data in a sector into high data, prior to changing low data into high data in respective bits;
- a lower counter having a first number of bits in the rewritable counter, and counting a first counter value;
- a upper counter having a second number of bits in the rewritable counter, and counting a second counter value;
- and
- a control section updating the first counter value of the lower counter by turning a bit from high to low by one bit increment, updating the second counter value of the upper counter each time the first counter value by the lower counter comes around, and thereby controlling writing in and reading out the data of the rewritable counter.
2 more elements
A counting method comprising:
- controlling writing in and reading out the data of a rewritable counter having a non-volatile memory which requires sector erasure to once turn all data in a sector into high data, prior to changing low data into high data in respective bits;
- and
- updating a counter value of the rewritable counter by writing in and reading out of the data with respect to the rewritable counter using a complement of 1.
A counting method comprising:
- controlling writing in and reading out the data of a rewritable counter having a non-volatile memory which requires sector erasure to once turn all data in a sector into high data, prior to changing low data into high data in respective bits;
- setting a lower count having a first number of bits in the rewritable counter, and counting a first counter value;
- setting a upper counter having a second number of bits in the rewritable counter, and counting a second counter value;
- updating the first counter value of the lower counter by turning a bit from high to low by one bit increment;
- and
- updating the second counter value of the upper counter each time the first counter value by the lower counter comes around.
3 more elements
Dependencies are inferred from the claim text.