1. An operation unit-equipped device comprising an operation unit including
a property controller configured to store, in a storage unit, operation property information of an application for controlling a main body of the operation unit-equipped device or changed information that is a changed piece of the operation property information; and
a control unit configured to
control, when the changed information is stored in the storage unit, an operation of the main body by an operation of the application corresponding to the changed information, and
control, when the changed information is not stored in the storage unit, an operation of the main body by an operation of the application corresponding to the operation property information.
2. The operation unit-equipped device according to claim 1, wherein
the operation unit further includes a screen display controller configured to store, in the storage unit, initial screen layout information indicating a predetermined initial screen layout or defined screen layout information indicating a defined screen layout,
the control unit displays, when the defined screen layout information is stored in the storage unit, a display screen indicated by the defined screen layout information on a display unit, and
the control unit displays, when the defined screen layout information is not stored in the storage unit, a display screen indicated by the initial screen layout information on the display unit.
3. The operation unit-equipped device according to claim 2, wherein
the screen display controller stores a screen component and the operation property information which are associated through the application in the storage unit, and
the control unit displays a display screen corresponding to the associated screen component and operation property information on the display unit.
4. The operation unit-equipped device according to claim 1, wherein
the operation unit further includes a post-processing controller configured to store post-processing information indicating a post-processing defined in the main body in the storage unit, and
the control unit controls the main body to perform the post-processing indicated by the post-processing information stored in the storage unit after an operation of the main body by the application is completed.
5. The operation unit-equipped device according to claim 1, wherein
the main body includes a Web application interface, and
the control unit communicates with the main body via the Web application interface to control the main body.
6. The operation unit-equipped device according to claim 1, wherein a combination of pieces of operation property information with high usage frequency is set for the operation property information as predetermined information or initial information.
7. A computer program product for being executed on a computer comprising:
a property controller configured to store, in a storage unit, operation property information of an application for controlling a main body or changed information that is a changed piece of the operation property information; and
a control unit configured to
control, when the changed information is stored in the storage unit, an operation of the main body by an operation of the application corresponding to the changed information, and
control, when the changed information is not stored in the storage unit, an operation of the main body by an operation of the application corresponding to the operation property information.
8. The computer program product according to claim 7, wherein
the computer further comprises a screen display controller configured to store, in the storage unit, initial screen layout information indicating a predetermined initial screen layout or defined screen layout information indicating a defined screen layout,
the control unit displays, when the defined screen layout information is stored in the storage unit, a display screen indicated by the defined screen layout information on a display unit, and
the control unit displays, when the defined screen layout information is not stored in the storage unit, a display screen indicated by the initial screen layout information on the display unit.
9. The computer program product according to claim 8, wherein
the screen display controller stores a screen component and the operation property information which are associated through the application in the storage unit, and
the control unit displays a display screen corresponding to the associated screen component and operation property information on the display unit.
10. The computer program product according to claim 7, wherein
the computer further comprises a post-processing controller configured to store post-processing information indicating a post-processing defined in the main body in the storage unit, and
the control unit controls the main body to perform the post-processing indicated by the post-processing information stored in the storage unit after an operation of the main body by the application is completed.
11. The computer program product according to claim 7, wherein
the main body includes a Web application interface, and
the control unit communicates with the main body via the Web application interface to control the main body.
12. The computer program product according to claim 7, wherein a combination of pieces of operation property information with high usage frequency is set for the operation property information as predetermined information or initial information.
13. An information processing method comprising:
storing, by a property controller, in a storage unit, operation property information of an application for controlling a main body or changed information that is a changed piece of the operation property information;
controlling, by a control unit, when the changed information is stored in the storage unit, an operation of the main body by an operation of the application corresponding to the changed information; and
controlling, by the control unit, when the changed information is not stored in the storage unit, an operation of the main body by an operation of the application corresponding to the operation property information.
14. The information processing method according to claim 13, further comprising:
storing, by a screen display controller, in the storage unit, initial screen layout information indicating a predetermined initial screen layout or defined screen layout information indicating a defined screen layout;
displaying, by the control unit, when the defined screen layout information is stored in the storage unit, a display screen indicated by the defined screen layout information on a display unit; and
displaying, by the control unit, when the defined screen layout information is not stored in the storage unit, a display screen indicated by the initial screen layout information on the display unit.
15. The information processing method according to claim 14, further comprising:
storing, by the screen display controller, a screen component and the operation property information which are associated through the application in the storage unit; and
displaying, by the control unit, a display screen corresponding to the associated screen component and operation property information on the display unit.
16. The information processing method according to claim 13, further comprising:
storing, by a post-processing controller, post-processing information indicating a post-processing defined in the main body in the storage unit; and
controlling, by the control unit, the main body to perform the post-processing indicated by the post-processing information stored in the storage unit after an operation of the main body by the application is completed.
17. The information processing method according to claim 13, wherein
the main body includes a Web application interface, and
the control unit communicates with the main body via the Web application interface to control the main body.
18. The information processing method according to claim 13, wherein a combination of pieces of operation property information with high usage frequency is set for the operation property information as predetermined information or initial 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 circuit comprising:
a logging transistor receiving an input current at an input terminal;
a guard circuit coupled between the input terminal and a base of the logging transistor and arranged to force the input current into the input terminal of the logging transistor; and
a positioning circuit coupled between the base and an output terminal of the logging transistor and arranged to maintain a voltage of the logging transistor.
2. The circuit of claim 1 where:
the guard circuit comprises a first feedback loop; and
the positioning circuit comprises a second feedback loop.
3. The circuit of claim 1 where the guard circuit comprises a buffer amplifier.
4. The circuit of claim 3 where:
the input terminal of the logging transistor comprises a collector; and
the buffer amplifier includes an input coupled to the collector and an output coupled to the base of the logging transistor.
5. The circuit of claim 1 where the positioning circuit comprises an operational amplifier.
6. The circuit of claim 5 where the operational amplifier includes a first input coupled to the base of the logging transistor, a second input coupled to a reference signal, and an output coupled to the output terminal of the logging transistor.
7. The circuit of claim 1 further comprising a second logging transistor coupled to the first logging transistor and arranged to provide log-ratio operation.
8. The circuit of claim 7 further comprising a second guard circuit arranged to force a second input current into an input terminal of the second logging transistor.
9. The circuit of claim 8 where the guard circuit comprises a second buffer amplifier.
10. The circuit of claim 8 where:
the output terminal of the first logging transistor includes an emitter coupled to an emitter of the second logging transistor; and
the first and second logging transistors are arranged to provide a \u0394VBE output between the bases of the first and second logging transistors.