1. A mass spectrometer comprising:
an ion source for ionizing a sample;
an ion storage-and-ejection portion for performing a storing operation for storing at least some of the ions generated in the ion source and then performing an ejecting operation for ejecting the stored ions;
a mass analyzer for selecting desired ions according to mass-to-charge ratio from the ions ejected from the ion storage-and-ejection portion;
a detector for detecting the desired ions;
analog signal processing circuitry for converting a signal from the detector into a voltage; and
an AD converter for sampling and converting the output voltage from the analog signal processing circuitry into a digital signal;
wherein two signals delivered from the analog signal processing circuitry in response to two pulsed ions produced by two successive ejecting operations of the ion storage-and-ejection portion are at least partially overlapped temporally.
2. The mass spectrometer as set forth in claim 1, wherein said ejecting operations of said ion storage-and-ejection portion have a frequency greater than a frequency bandwidth of said analog signal processing circuitry.
3. The mass spectrometer as set forth in claim 1, wherein at least some of said desired ions contained in the ions ejected by a latter one of said two successive ejecting operations of said ion storage-and-ejection portion enter said detector earlier than at least some of the desired ions contained in the ions ejected by a former one of said two successive ejecting operations.
4. The mass spectrometer as set forth in claim 1, wherein there is further provided a control section for controlling timings of storage and ejection of ions performed by said ion storage-and-ejection portion, and wherein said control section causes the storage-and-ejection portion to perform said storing operation and said ejecting operation by applying a voltage varying like a rectangular, sinusoidal, or triangular wave to an exit electrode of the ion storage-and-ejection portion.
5. The mass spectrometer as set forth in claim 1,
wherein there is further provided a cooling chamber for lowering kinetic energies of the ions generated in said ion source,
wherein said cooling chamber operates as said ion storage-and-ejection portion, performs the storing operation for storing the ions generated in the ion source, and then performs the ejecting operation for ejecting the stored ions, and
wherein said mass analyzer selects said desired ions according to mass-to-charge ratio from the ions ejected by the cooling chamber.
6. The mass spectrometer as set forth in claim 5, wherein said mass analyzer includes a quadrupole mass filter.
7. The mass spectrometer as set forth in claim 1,
wherein there are further provided a first mass analyzer for selecting first desired ions according to mass-to-charge ratio from the ions generated in said ion source, a collisional cell for fragmenting some or all of the first desired ions into product ions, and a second mass analyzer for selecting second desired ions according to mass-to-charge ratio from the first desired ions and the product ions,
wherein the collisional cell operates as said ion storage-and-ejection portion, performs a storing operation for storing the first desired ions and the product ions, and then performs an ejecting operation for ejecting the stored ions, and
wherein the second mass analyzer operates as the first-mentioned mass analyzer and selects the second desired ions according to mass-to-charge ratio from the ions ejected from the collisional cell.
8. The mass spectrometer as set forth in claim 1,
wherein there are further provided a cooling chamber for lowering kinetic energies of the ions generated in said ion source, a first mass analyzer for selecting first desired ions according to mass-to-charge ratio from the ions ejected by the cooling chamber, a collisional cell for fragmenting some or all of the first desired ions into product ions, and a second mass analyzer for selecting second desired ions according to mass-to-charge ratio from the first desired ions and the product ions,
wherein the cooling chamber operates as said ion storage-and-ejection portion, performs a storing operation for storing the ions generated in the ion source, and then performs an ejecting operation for ejecting the stored ions, and
wherein the first mass analyzer operates as the first-mentioned mass analyzer.
9. The mass spectrometer as set forth in claim 7, wherein at least one of said first mass analyzer and said second mass analyzer includes a quadrupole mass filter.
10. A method of controlling a mass spectrometer having: an ion source for ionizing a sample; an ion storage-and-ejection portion for performing a storing operation for storing at least some of the ions generated in the ion source and then performing an ejecting operation for ejecting the stored ions; a mass analyzer for selecting desired ions according to mass-to-charge ratio from the ions ejected from the ion storage-and-ejection portion; a detector for detecting the desired ions; analog signal processing circuitry for converting a signal from the detector into a voltage; and an AD converter for sampling and converting the output voltage from the analog signal processing circuitry into a digital signal, said method comprising the step of:
controlling timings of storage and ejection of ions performed by the ion storage-and-ejection portion in response to two pulsed ions produced by two successive ejecting operations of the ion storage-and-ejection portion such that two signals delivered from the analog signal processing circuitry are at least partially overlapped temporally.
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 method for controlling a temperature of a terminal, the method comprising:
detecting a temperature of the terminal; and
performing at least one of:
a temperature based first throttle procedure including driving a controller with a first preset driving frequency when the temperature of the terminal is a first preset temperature, and driving the controller with a second driving frequency higher than the first driving frequency when the temperature of the terminal is reduced to a second preset temperature lower than the first preset temperature according to the driving of the controller with the first driving frequency; and
a time based second throttle procedure including repeatedly driving the controller with the first driving frequency for a first time when the temperature of the terminal is the first preset temperature, and driving the controller with the second driving frequency for a second time after the first time elapses.
2. The method of claim 1, further comprising performing a temperature based second throttle procedure including:
driving the controller with a third driving frequency lower than the first driving frequency when the temperature of the terminal increases to a third preset temperature greater than the first preset temperature, and
driving the controller with a fourth driving frequency greater than the third driving frequency and lower than the first driving frequency when the temperature of the terminal is reduced to a fourth preset temperature lower than the third preset temperature according to the driving of the controller with the third driving frequency.
3. The method of claim 1, further comprising performing a time based second throttle procedure including:
driving the controller with a third driving frequency lower than the first driving frequency for a third time when the temperature of the terminal increases to a third preset temperature greater than the first preset temperature, and
driving the controller with a fourth driving frequency greater than the third driving frequency and lower than the first driving frequency for a predetermined time.
4. The method of claim 1, further comprising shutting down the terminal when the temperature of the terminal increases to a fifth preset temperature being a preset maximum increased value.
5. The method of claim 1, further comprising: restricting a limited number or a function of currently activated application programs when the temperature of the terminal increases to the first preset temperature.
6. The method of claim 5, wherein the restricting of the limited number or the function of the currently activated application programs comprises:
determining priority information of the currently activated application program; and
terminating at least one application program having relatively low priority information among the currently activated application programs or restricting a function of an application according to the limited number of the currently activated application programs.
7. The method of claim 6, wherein the restricting of the limited number or the function of the currently activated programs further comprises:
limiting the number of currently activated application programs based on the limited number to fewer than the limited number of the currently activated application programs when the temperature of the terminal increases to another preset temperature higher than the first preset temperature; and
limiting the number of currently activated application programs based on the limited number to more than the limited number of the application programs when the temperature of the terminal is reduced from the first preset temperature to another preset temperature lower than the first preset temperature.
8. The method of claim 6, further comprising:
receiving a request to activate a new application program when the number of activated application programs is restricted to the limited number of application programs;
determining priority information of the new application program; and
rejecting activation of the new application program or outputting a rejection guide message together with the rejection when the priority information is lower than that of the currently activated application programs.
9. The method of claim 8, further comprising terminating at least one application program having relatively low priority information among the currently activated application programs and activating the new application program when activation of a new application program is again requested after the rejection.
10. The method of claim 6, further comprising:
receiving a request to activate a new application program when the number of activated application programs is restricted according to the limited number of application programs;
determining priority information of the new application program; and
terminating at least one of the currently activated application programs and activating a new application program when the priority information of the new application program is higher than that of at least one of the currently activated application programs.
11. A terminal for supporting temperature control, the terminal comprising:
a temperature sensor for detecting a temperature of the terminal; and
a controller for performing at least one of:
a temperature based first throttle procedure including driving the controller with a first preset driving frequency when the temperature of the terminal detected by the temperature sensor is a first preset temperature, and driving the controller with a second driving frequency higher than the first driving frequency when the temperature of the terminal is reduced to a second preset temperature lower than the first preset temperature, and
a time based second throttle procedure including driving the controller with the first preset driving frequency for a first time, and driving the controller with the second driving frequency higher than the first driving frequency for a second time after the first time elapses.
12. The terminal of claim 11, wherein the controller comprises a processor driver controller for controlling an operation performed according to a situation of the first preset temperature, for driving the controller with a third driving frequency lower than the first driving frequency when the temperature of the terminal increases from the first preset temperature to a third preset temperature, and for controlling the controller to be operated with a fourth driving frequency higher than the third driving frequency and lower than the first driving frequency when the temperature of the terminal is reduced to a fourth preset temperature lower than the third preset temperature.
13. The terminal of claim 11, wherein the controller comprises a processor drive controller for repeatedly driving the controller with a third driving frequency for a third time when the temperature of the terminal increases to a third preset temperature lower than the first driving frequency, and driving the controller with a fourth driving frequency higher than the third driving frequency and lower than the first driving frequency for a fourth time for a predetermined time.
14. The terminal of claim 11, wherein the controller comprises a processor driver controller for controlling the terminal is to shut down when the temperature of the terminal increases to a fifth preset temperature being a preset maximum increased value.
15. The terminal of claim 11, wherein the controller comprises a function restricting unit for restricting a limited number of functions of currently activated application programs when the temperature of the terminal increases to the first preset temperature.
16. The terminal of claim 15, wherein the function restricting unit obtains priority information of the currently activated application programs, terminates at least one application program having relatively low priority information among the currently activated application programs according to the limited number of the currently activated application programs or restricts functions of the application program having the relatively low priority.
17. The terminal of claim 16, wherein the function restricting unit restricts the number of currently activated application programs based on the limited number to fewer than the limited number of the application when the temperature of the terminal increases to another preset temperature higher than the first preset temperature, and
wherein the function restricting unit restricts the number of currently activated application programs based on the limited number to more than the limited number of the application programs when the temperature of the terminal is reduced from the first preset temperature to another preset temperature lower than the first preset temperature.
18. The terminal of claim 16, further comprising:
an input unit or a display unit of an input function for receiving an input signal requesting activation of a new application program, and
wherein, when the number of the currently activated application programs is limited according to the limited number, the function restricting unit determines priority information of the new application program, and controls such that activation of the new application program is rejected and a rejection guide message is output on the display unit together with the rejection when the priority information is lower than that of the currently activated application programs.
19. The terminal of claim 18, wherein the function restricting unit terminates at least one application program having relatively low priority information among the currently activated application programs and activates the new application program when the activation of the new application program is requested again after the rejection.
20. The terminal of claim 16, further comprising:
an input unit or a display unit having an input function for generating an input signal for requesting activation of a new application program,
wherein, when the number of currently activated application programs is limited according to the limited number of application programs, the function restricting unit determines priority information of the new application program, and controls such that at least one of the activated application programs is terminated and the new application program is activated when the priority information is higher than that of at least one of the currently activated application programs.