1. An electronic device comprising:
a time measuring unit that measures time;
a memory unit that stores the values of the times measured by the time measuring unit as data groups for each measuring of time, and stores the data groups in association with protection information showing whether the data groups are in a protection state or an unprotected state;
an input unit that receives an input of an instruction;
a protection information setting unit that sets the protection information stored in the memory unit on the basis of the instruction received by the input unit; and
a deleting unit that deletes data of the data groups that are in the unprotected state from the memory unit, on the basis of the protection information stored in the memory unit, when there is no capacity for storing the values of the times measured by the time measuring unit in the memory unit.
2. The electronic device according to claim 1, further comprising a capacity memory unit that stores the data capacity that the memory unit can store and the total data capacity of the data groups in the unprotected state which are stored in the memory unit, or stores the total data capacity of the data group in the protection state which are stored in the memory unit and the total data capacity of the data groups in the unprotected state which are stored in the memory unit.
3. The electronic device according to claim 1, wherein the deleting unit individually deletes the data groups stored in the memory unit or deletes all the data groups in the unprotected state in the data groups stored in the memory unit, on the basis of the instruction received by the input unit.
4. The electronic device according to claim 2, wherein the deleting unit individually deletes the data groups stored in the memory unit or deletes all the data groups in the unprotected state in the data groups stored in the memory unit, on the basis of the instruction received by the input unit.
5. The electronic device according to claim 1, further comprising a feature determining unit that determines whether the value of the time measured by the time measuring unit is a feature value,
wherein the protection information setting unit, when the feature determining unit determines that the value of the time measured by the time measuring unit is the feature value, make the protection information associated with the data group including the value information showing a protection state.
6. The electronic device according to claim 2, further comprising a feature determining unit that determines whether the value of the time measured by the time measuring unit is a feature value,
wherein the protection information setting unit, when the feature determining unit determines that the value of the time measured by the time measuring unit is the feature value, make the protection information associated with the data group including the value information showing a protection state.
7. The electronic device according to claim 3, further comprising a feature determining unit that determines whether the value of the time measured by the time measuring unit is a feature value,
wherein the protection information setting unit, when the feature determining unit determines that the value of the time measured by the time measuring unit is the feature value, make the protection information associated with the data group including the value information showing a protection state.
8. The electronic device according to claim 4, further comprising a feature determining unit that determines whether the value of the time measured by the time measuring unit is a feature value,
wherein the protection information setting unit, when the feature determining unit determines that the value of the time measured by the time measuring unit is the feature value, make the protection information associated with the data group including the value information showing a protection state.
9. The electronic device according to claim 1, further comprising a condition selection unit that selects a condition for the feature determining unit to determine whether the value is a feature value.
10. The electronic device according to claim 2, further comprising a condition selection unit that selects a condition for the feature determining unit to determine whether the value is a feature value.
11. The electronic device according to claim 3, further comprising a condition selection unit that selects a condition for the feature determining unit to determine whether the value is a feature value.
12. The electronic device according to claim 4, further comprising a condition selection unit that selects a condition for the feature determining unit to determine whether the value is a feature value.
13. The electronic device according to claim 5, further comprising a condition selection unit that selects a condition for the feature determining unit to determine whether the value is a feature value.
14. The electronic device according to claim 6, further comprising a condition selection unit that selects a condition for the feature determining unit to determine whether the value is a feature value.
15. The electronic device according to claim 7, further comprising a condition selection unit that selects a condition for the feature determining unit to determine whether the value is a feature value.
16. The electronic device according to claim 8, further comprising a condition selection unit that selects a condition for the feature determining unit to determine whether the value is a feature value.
17. The electronic device according to claim 1, wherein a portion of or the entire memory unit is a nonvolatile memory.
18. The electronic device according to claim 2, wherein a portion of or the entire memory unit is a nonvolatile memory.
19. An electronic timepiece comprising:
a time measuring unit that measures time;
a memory unit that stores values of the times measured by the time measuring unit as data groups for each measuring of time, and stores the data groups in association with protection information showing whether the data groups are in a protection state or an unprotected state;
an input unit that receives an input of an instruction;
a protection information setting unit that sets the protection information stored in the memory unit on the basis of the instruction received by the input unit; and
a deleting unit that deletes data of the data groups that are in the unprotected state from the memory unit, on the basis of the protection information stored in the memory unit, when there is no capacity for storing the values of the times measured by the time measuring unit in the memory unit.
20. A program enabling a computer to perform:
measuring time;
storing the values of the times measured by the measuring of time as data groups for each measuring of time, and storing the data groups in a memory unit in association with protection information showing whether the data groups are in a protection state or an unprotected state;
receiving an input of an instruction;
setting the protection information stored in the memory unit on the basis of the instruction received in the receiving of the input; and
deleting data of the data groups that are in the unprotected state from the memory unit, on the basis of the protection information stored in the memory unit, when there is no capacity for storing the values of the time measured by the measuring of time in the memory unit.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
What is claimed is:
1. A radio communication system for a terminal to carry out radio communication through a repeater securing an optimum communication state selected from plural repeaters, wherein
a reception condition of a repeater when each of plural repeaters receives a connection request sent from the terminal through broadcast is detected as a repeater reception condition and a reception condition of a terminal when said terminal receives a connection request echo sent from said plural repeaters after receiving said connection request is detected as a terminal reception condition so as to select a repeater securing an optimum communication state based on said terminal reception condition and said repeater reception condition.
2. A radio communication system for a terminal to carry out radio communication through a repeater securing an optimum communication state selected by a path management repeater from plural repeaters, the system comprising:
a terminal for sending a connection request for starting radio communication through broadcast, receiving a connection request echo sent back by a repeater receiving said connection request so as to detect a reception condition at this time as a terminal reception condition and sending the terminal reception condition through broadcast;
plural repeaters for receiving said connection request sent by said terminal so as to detect a reception condition at this time as a repeater reception condition, sending said connection request echo including the repeater reception condition to said terminal and said path management repeater and when receiving said terminal reception condition sent by said terminal, sending the terminal reception condition to said path management repeater; and
a path management repeater for receiving said connection request sent by said terminal so as to detect a reception condition at this time as a repeater reception condition, sending said connection request echo including the repeater reception condition to said terminal and when receiving said connection request echo sent by said plural repeaters and said terminal reception condition sent by said terminal or said plural repeaters, selecting a repeater securing an optimum communication state based on said repeater reception condition and said terminal reception condition.
3. A radio communication system for a terminal to carry out radio communication through a repeater securing an optimum communication state selected from plural repeaters, the system comprising:
a terminal for sending a connection request for starting radio communication through broadcast, receiving a connection request echo sent back by a repeater receiving said connection request so as to detect a reception condition at this time as a terminal reception condition and selecting a repeater securing an optimum communication state based on the terminal reception condition and a repeater reception condition included in said connection request echo; and
plural repeaters for receiving said connection request sent by said terminal so as to detect a reception condition at this time as the repeater reception condition and sending said connection request echo including the repeater reception condition to said terminal.
4. A radio communication method for a terminal to carry out radio communication through a repeater securing an optimum communication state selected by a path management repeater from plural repeaters, the method comprising:
a connection request sending step of said terminal’s sending a connection request for starting radio communication through broadcast;
a repeater reception condition detecting step of when said connection request sent in said connection request sending step is received by said plural repeaters and said path management repeater, detecting a reception condition at this time as a repeater reception condition;
a connection request echo sending step of sending a connection request echo including said repeater reception condition detected in the repeater reception condition detecting step to said terminal and said path management repeater;
a terminal reception condition detecting step of when said terminal receives said connection request echo sent in the connection request echo sending step, detecting a reception condition at this time as a terminal reception condition;
a terminal reception condition sending step of sending said terminal reception condition detected in the terminal reception condition detecting step through broadcast;
a terminal reception condition echo sending step of when said plural repeaters receive said terminal reception condition sent in the terminal reception condition sending step, sending back the terminal reception condition to said path management repeater; and
a repeater selection step of when said path management repeater receives said terminal reception condition sent in the terminal reception condition echo sending step or the terminal reception condition sending step and further receives said connection request echo sent back in the connection request echo sending step, selecting a repeater securing an optimum communication state based on said terminal reception condition and said repeater reception condition.
5. A radio communication method for a terminal to carry out radio communication through a repeater securing an optimum communication state selected from plural repeaters, the method comprising:
a connection request sending step of said terminal’s sending a connection request for starting radio communication through broadcast;
a repeater reception condition detecting step of when said connection request sent in said connection request sending step is received by said plural repeaters, detecting a reception condition at this time as a repeater reception condition;
a connection request echo sending step of sending a connection request echo including said repeater reception condition detected in the repeater reception condition detecting step to said terminal;
a terminal reception condition detecting step of when said terminal receives said connection request echo sent in the connection request echo sending step, detecting a reception condition at this time as a terminal reception condition; and
a repeater selection step of selecting a repeater securing an optimum communication state based on said terminal reception condition detected in the terminal reception condition detecting step and said repeater reception condition included in said connection request echo.
6. A recording medium for storing a program for selection of a repeater in radio communication system for a terminal to carry out radio communication through a repeater securing an optimum communication state selected by a path management repeater from plural repeaters, the program including:
a connection sending request processing for said terminal’s sending a connection request for starting radio communication through broadcast;
a repeater reception condition detecting processing for, when said connection request sent in said connection request sending processing is received by said plural repeaters and said path management repeater, detecting a reception condition at this time as a repeater reception condition;
a connection request echo sending processing for sending a connection request echo including said repeater reception condition detected in the repeater reception condition detecting processing to said terminal and said path management repeater;
a terminal reception condition detecting processing for, when said terminal receives said connection request echo sent in the connection request echo sending processing, detecting a reception condition at this time as a terminal reception condition;
a terminal reception condition sending processing for sending said terminal reception condition detected in the terminal reception condition detecting processing through broadcast;
a terminal reception condition echo sending processing for, when said plural repeaters receive said terminal reception condition sent in the terminal reception condition sending processing, sending back the terminal reception condition to said path management repeater; and
a repeater selection processing for, when said path management repeater receives said terminal reception condition sent in the terminal reception condition echo sending processing or the terminal reception condition sending processing and further receives said connection request echo sent back in the connection request echo sending processing, selecting a repeater securing an optimum communication state based on said terminal reception condition and said repeater reception condition.
7. A recording medium for storing a program for selection of a repeater in radio communication system for a terminal to carry out radio communication through a repeater securing an optimum communication state selected from plural repeaters, the program including:
a connection request sending processing for said terminal’s sending a connection request for starting radio communication through broadcast;
a repeater reception condition detecting processing for, when said connection request sent in said connection request sending processing is received by said plural repeaters, detecting a reception condition at this time as a repeater reception condition;
a connection request echo sending processing for sending a connection request echo including said repeater reception condition detected in the repeater reception condition detecting processing to said terminal;
a terminal reception condition detecting processing for, when said terminal receives said connection request echo sent in the connection request echo sending processing, detecting a reception condition at this time as a terminal reception condition; and
a repeater selection processing for selecting a repeater securing an optimum communication state based on said terminal reception condition detected in the terminal reception condition detecting processing and said repeater reception condition included in said connection request echo.