1. A memory control device for controlling either write-in or read-out operation for a memory, the memory control device comprising:
an interface unit connected to the memory for performing either write-in or read-out operation for the memory;
a power-on reset signal generation unit for generating a power-on reset signal in response to power on;
an internal reset signal generation unit for generating a an internal reset signal in response to a reset request;
an initializing signal supply unit for delivering the power-on reset signal or the internal reset signal as an initializing signal that initializes write-in status or read-out status information data held by the interface unit to the interface unit; and
a control unit for determining whether or not the initializing signal is based on the power-on reset signal after the write-in status or read-out status information data in the interface unit is initialized in response to the initializing signal, and for performing a check process on the memory if the initializing signal is determined to be based on the power-on reset signal.
2. The memory control device according to claim 1, further comprising a storage unit for storing a power-on reset code representative of completion of delivery of a first initializing signal which is the initializing signal delivered at first time after power on, and wherein
the control unit determines whether or not the power-on reset code is stored in the storage unit in response to the initializing signal, and if the control unit determines that the power-on reset code is not stored, the control unit writes the power-on reset code to the storage unit and determines that the initializing signal is based on the power-on reset signal.
3. The memory control device according to claim 1, wherein
the memory is divided into a plurality of blocks, and
the control unit performs the check process on some region of each of the blocks.
4. The memory control device according to claim 3, wherein
the plurality of blocks are each divided into a plurality of pages, and
whenever the power on is performed, the control unit changes a target page for the check process among the plurality of pages and performs the check process on the target page in each of the blocks.
5. The memory control device according to claim 3, wherein
the check process includes an error detection process that performs error detection on data read from the memory and generates information indicative of number of error bits, and
the control unit executes an error correction process on a block, among the plurality of blocks, which includes data in which the number of error bits exceeds a specified threshold value.
6. The memory control device according to claim 5, wherein
the control unit executes the error correction process, if the reset signal is determined to be based on the power-on reset signal.
7. The memory control device according to claim 5, wherein
the control unit stores information indicative of number of the target pages for the check process and information indicative of maximum number of blocks, on which the error correction process is performed, as management information in the memory, and executes the check process and the error correction process on the basis of the management information.
8. A memory control method for controlling either write-in or read-out operation for a memory, the memory control method comprising the steps of:
generating a power-on reset signal in response to power on;
generating an internal reset signal in response to a reset request;
delivering the power-on reset signal or the internal reset signal as an initializing signal; and
determining whether or not the initializing signal is based on the power-on reset signal and performing a check process on the memory only when the initializing signal is determined to be based on the power-on reset signal.
9. The memory control method according to claim 8, further comprising the step of storing a power-on reset code representative of completion of delivery of a first initializing signal which is the initializing signal delivered at first time after the power on, and wherein
in the step of performing the check process, it is determined whether or not the power-on reset code is stored in response to the initializing signal, and if it is determined that the power-on reset code is not stored, the power-on reset code is written and the initializing signal is determined to be based on the power-on reset signal.
10. The memory control method according to claim 8, wherein
the memory is divided into a plurality of blocks, and
in the step of performing the check process, the check process is performed on some region of each of the blocks.
11. The memory control method according to claim 10, wherein
the plurality of blocks are each divided into a plurality of pages, and
in the step of performing the check process, whenever the power on is performed, a target page for the check process is changed among the plurality of pages and the check process is performed on the target page in each of the blocks.
12. The memory control method according to claim 10, wherein
the check process includes an error detection process that performs error detection on data read from the memory and generates information indicative of number of error bits, and
the method further includes the step of executing an error correction process on a block, among the plurality of blocks, which includes data in which the number of error bits exceeds a specified threshold value.
13. The memory control method according to claim 12, wherein the step of executing the error correction process includes the step of executing the error correction process if the reset signal is determined to be based on the power-on reset signal.
14. The memory control method according to claim 12, further comprising the step of storing information indicative of number of the target pages targeted to the check process and information indicative of maximum number of blocks, on which the error correction process is performed, as management information in the memory, and wherein
the step of executing the check process includes the step of executing the check process on the basis of the management information, and
the step of executing the error correction process includes the step of executing the error correction process on the basis of the management information.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A burner comprising:
a burner tube that receives a mixture of fuel and air, the burner tube coupled to an outlet,
the outlet comprising a primary outlet opening, the primary outlet opening being in communication with at least one transverse slot for communicating a flame to at least one adjacent burner.
2. The burner of claim 1 wherein the at least one transverse slot extends from the primary outlet opening and terminates short of an outlet of the adjacent burner.
3. The burner of claim 1 wherein the primary outlet opening is elliptical with a semi-minor axis, and the at least one transverse slot is disposed along the semi-minor axis of the primary outlet opening.
4. The burner of claim 1 wherein the primary outlet opening is elliptical with a semi-minor axis and the outlet further comprises a pair of oppositely directed transverse slots extending outward from the primary outlet opening along the semi-minor axis of the primary outlet opening.
5. The burner of claim 1 wherein the primary outlet opening is elliptical and the outlet further comprises a concave outer face through which the primary outlet opening extends.
6. The burner of claim 5 wherein the outlet further comprises a pair of oppositely directed transverse slots extending outward from the primary outlet opening along a semi-minor axis of the primary outlet opening.
7. The burner of claim 1 wherein the burner is coupled to an igniter.
8. A burner assembly comprising:
a plurality of burners, each burner comprising a burner tube that receives a mixture of fuel and air, each burner tube coupled to an outlet,
each outlet comprising a primary outlet opening, each primary outlet opening being in communication with at least one transverse slot for communicating a flame to at least one adjacent burner.
9. The burner assembly of claim 8 wherein each transverse slot extends from its respective primary outlet opening and terminates short of the outlet of the adjacent burner.
10. The burner assembly of claim 8 wherein each primary outlet opening is elliptical and each transverse slot is disposed along the semi-minor axis of its respective primary outlet opening.
11. The burner assembly of claim 8 wherein each primary outlet opening is elliptical and each outlet further comprises a pair of oppositely directed transverse slots extending outward from their respective primary outlet opening along a semi-minor axis of their respective primary outlet opening.
12. The burner assembly of claim 8 wherein each primary outlet opening is elliptical and each outlet comprises a concave outer face through which the primary outlet opening extends.
13. The burner assembly of claim 12 wherein each outlet further comprises a pair of oppositely directed transverse slots extending outward from their respective primary outlet opening along a semi-minor axis of their respective primary outlet opening.
14. The burner assembly of claim 8 wherein only one burner is coupled to an igniter.
15. A low NOx furnace, comprising
a burner assembly comprising a plurality of burners, each burner comprising a burner tube that receives a mixture of fuel and air, each burner tube coupled to an outlet,
each outlet comprising a primary outlet opening, each primary outlet opening being in communication with at least one transverse slot for communicating a flame to at least one adjacent burner.
16. The furnace of claim 15 wherein each transverse slot extends from its respective primary outlet opening and terminates short of the outlet of the adjacent burner.
17. The furnace of claim 15 wherein each primary outlet opening is elliptical and each transverse slot is disposed along the semi-minor axis of its respective primary outlet opening.
18. The furnace of claim 15 wherein each primary outlet opening is elliptical and each outlet further comprises a pair of oppositely directed transverse slots extending outward from their respective primary outlet opening along a semi-minor axis of their respective primary outlet opening.
19. The furnace of claim 8 wherein each primary outlet opening is elliptical and each outlet comprises a concave outer face through which the primary outlet opening extends.
20. The furnace claim 19 wherein each outlet further comprises a pair of oppositely directed transverse slots extending outward from their respective primary outlet opening along a semi-minor axis of their respective primary outlet opening.
21. The furnace of claim 15 wherein only one burner is coupled to an igniter.