What is claimed is:
1. A semiconductor memory device comprising:
a plurality of memory cell regions, each comprising at least one memory cell;
a non-volatile memory section which accepts external writing; and
unselecting means for designating at least one of the plurality of memory cell regions to be inaccessible based on data written to the non-volatile memory section,
wherein at least one operation type is performed for at least one accessible memory cell region, which is not designated to be inaccessible, among the plurality of memory cell regions.
2. A semiconductor memory device according to claim 1, further comprising address conversion means for assigning a consecutive sequence of external addresses to the at least one accessible memory cell region.
3. A semiconductor memory device according to claim 2, wherein, if an internal address which is generated by adding a predetermined value to an external address coincides with an existing internal address when assigning the consecutive sequence of external addresses to the at least one accessible memory cell region, one of the plurality of memory cell regions corresponding to the generated internal address is designated to be inaccessible.
4. A semiconductor memory device according to claim 1, wherein, based on the data written to the non-volatile memory section, the unselecting means designates at least one of the plurality of memory cell regions to be inaccessible to one operation type among the at least one operation type, and yet accessible to the other operation types among the at least one operation type.
5. A semiconductor memory device according to claim 1,
wherein the semiconductor memory device comprises a plurality of memory cell blocks capable of accepting a block erase operation, and
wherein, when designating at least one of the plurality of memory cell regions to be inaccessible based on the data written to the non-volatile memory section, the unselecting means designates at least one of the plurality of memory cell blocks to be inaccessible.
6. A semiconductor memory device according to claim 5, wherein the plurality of memory cell blocks includes at least one memory cell block having a different capacity.
7. A semiconductor memory device according to claim 5,
wherein the semiconductor memory device comprises a plurality of banks, each comprising the plurality of memory cell blocks, such that the plurality of memory cell blocks are capable of dual work operation, and
wherein, when designating at least one of the plurality of memory cell regions to be inaccessible based on the data written to the non-volatile memory section, the unselecting means designates at least one of the plurality of banks to be inaccessible.
8. A semiconductor memory device according to claim 7, wherein at least one of the plurality of banks includes at least one memory cell block having a different capacity.
9. A semiconductor memory device according to claim 6, wherein the address conversion means is capable of changing an address position of the at least one memory cell block having the different capacity.
10. A semiconductor memory device according to claim 1, wherein the non-volatile memory section is provided in a portion of a non-volatile memory cell which is capable of programming at once.
11. A method for restoring the semiconductor memory device according to claim 1 when the semiconductor memory device includes a defective memory cell, comprising the steps of:
storing an address of the defective memory cell in the non-volatile memory section; and
designating, by means of the unselecting means, one of the plurality of memory cell regions that includes the defective memory cell to be inaccessible, based on the data written to the non-volatile memory section.
12. A method according to claim 11, further comprising the step of:
designating, by means of the unselecting means, one of the plurality of memory cell regions that includes the defective memory cell to be inaccessible only to an operation type which causes an error, based on the data written to the non-volatile memory section.
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. An electric operation apparatus comprising:
a high-frequency generating device which generates high-frequency current for treating the body anatomy;
an active electrode which supplies to adapted to supply the body anatomy with the high-frequency current generated by the high-frequency generating device;
a solution supply device which supplies a conductive solution around the active electrode;
a return electrode which returns, via the conductive solution supplied by the solution supply device, the high-frequency current supplied to the body anatomy from the active electrode in the conductive solution;
a sensor which detects a conductive state of the high-frequency current that flows between the active electrode and the return electrode;
a control device which determines a state of bubbles generated around the active electrode and which changes an operation mode, based on the conductive state of the high-frequency current detected by the sensor, the control device has a first operation mode for starting the discharge operation using the active electrode and a second operation mode for changing the conductive state of the high-frequency current after the start of discharge operation in the first operation mode; and
an air supply device which supplies air near the active electrode arranged in the conductive solution, the control device controlling the air supply device and changing the operation mode.
2. An electric operation apparatus according to claim 1, wherein the control device operates the air supply device in the first operation mode, and stops the operation of the air supply device in the second operation mode.
3. An electric operation apparatus according to claim 1, wherein the control device operates the air supply device after outputting the high-frequency current to the active electrode only when no discharge operation starts in the active electrode, and stops the air supply device when the discharge operation starts in the active electrode.
4. An electric operation apparatus comprising:
a high-frequency generating device which generates high-frequency current for treating the body anatomy;
an active electrode which supplies to adapted to supply the body anatomy with the high-frequency current generated by the high-frequency generating device;
a solution supply device which supplies a conductive solution around the active electrode;
a return electrode which returns, via the conductive solution supplied by the solution supply device, the high-frequency current supplied to the body anatomy from the active electrode in the conductive solution;
a sensor which detects a conductive state of the high-frequency current that flows between the active electrode and the return electrode;
a control device which determines a state of bubbles generated around the active electrode and which changes an operation mode, based on the conductive state of the high-frequency current detected by the sensor, the control device has a first operation mode for starting the discharge operation using the active electrode and a second operation mode for changing the conductive state of the high-frequency current after the start of discharge operation in the first operation mode; and
a heating power supply device which generates power for heating the active electrode arranged in the conductive solution, the control device controls the heating power supply device, and changes the operation mode,
wherein the high-frequency current is outputted to the active electrode, nearly simultaneously, the heating power supply device outputs DC or AC current to heat the active electrode and, upon detecting the start of discharge operation in the active electrode, nearly simultaneously, the control device stops the DC or AC current outputted from the heating power supply device.
5. An electric operation apparatus according to claim 4, wherein an edge portion of the active electrode is spiral-shaped or saw-blade-shaped.
6. An electric operation apparatus comprising:
a high-frequency generating device which generates high-frequency current for treating the body anatomy;
an active electrode which supplies to adapted to supply the body anatomy with the high-frequency current generated by the high-frequency generating device;
a solution supply device which supplies a conductive solution around the active electrode;
a return electrode which returns, via the conductive solution supplied by the solution supply device, the high-frequency current supplied to the body anatomy from the active electrode in the conductive solution;
a sensor which detects a conductive state of the high-frequency current that flows between the active electrode and the return electrode;
a control device which determines a state of bubbles generated around the active electrode and which changes an operation mode, based on the conductive state of the high-frequency current detected by the sensor, the control device has a first operation mode for starting the discharge operation using the active electrode and a second operation mode for changing the conductive state of the high-frequency current after the start of discharge operation in the first operation mode; and
an evaporation detecting portion which detects vapor of the conductive solution so as to detect the state of the bubbles near the active electrode, the control device changes the operation mode based on a detection result of the evaporation detecting portion,
wherein the control device operates the high-frequency generating device so that the peak of the high-frequency power or a crest factor of the high-frequency current is increased before detecting the evaporation of the conductive solution in the first operation mode, and operates the high-frequency generating device so that the peak of the high-frequency power or the crest factor of the high-frequency current is decreased after detecting the evaporation of the conductive solution in the second operation mode.
7. An electric operation apparatus comprising:
a high-frequency generating device which generates high-frequency current for treating the body anatomy;
an active electrode which supplies to adapted to supply the body anatomy with the high-frequency current generated by the high-frequency generating device;
a solution supply device which supplies a conductive solution around the active electrode;
a return electrode which returns, via the conductive solution supplied by the solution supply device, the high-frequency current supplied to the body anatomy from the active electrode in the conductive solution;
a sensor which detects a conductive state of the high-frequency current that flows between the active electrode and the return electrode;
a control device which determines a state of bubbles generated around the active electrode and which changes an operation mode, based on the conductive state of the high-frequency current detected by the sensor, the control device has a first operation mode for starting the discharge operation using the active electrode and a second operation mode for changing the conductive state of the high-frequency current after the start of discharge operation in the first operation mode; and
a promotion holding portion which promotes the generation of bubbles near the active electrode or holds the bubbles, the control device controlling the promotion holding portion, and changing the operation mode; the promotion holding portion being a solution supply stop portion which temporarily stops the solution supply of the conductive solution through the solution supply device, and the control device operates the solution supply stop portion in the second operation mode.
8. An electric operation apparatus comprising:
a high-frequency generating device which generates high-frequency current for treating the body anatomy;
an active electrode which supplies to adapted to supply the body anatomy with the high-frequency current generated by the high-frequency generating device;
a solution supply device which supplies a conductive solution around the active electrode;
a return electrode which returns, via the conductive solution supplied by the solution supply device, the high-frequency current supplied to the body anatomy from the active electrode in the conductive solution;
a sensor which detects a conductive state of the high-frequency current that flows between the active electrode and the return electrode;
a control device which determines a state of bubbles generated around the active electrode and which changes an operation mode, based on the conductive state of the high-frequency current detected by the sensor, the control device has a first operation mode for starting the discharge operation using the active electrode and a second operation mode for changing the conductive state of the high-frequency current after the start of discharge operation in the first operation mode; and
a discharge promoting portion which promotes the discharge operation in the active electrode, the control device controlling the discharge promoting portion, and changing the operation mode, the discharge promoting portion being an air supply device which supplies air near the active electrode arranged in the conductive solution.