Author: claimsbot

1. A Web system provided with a Web server connectable to a Web browser of a client via a network and adapted to send contents data to the Web browser in accordance with a processing request from the Web browser;
said contents data being a program file in which instructions for causing the Web browser to execute prescribed processing are described;
said Web server comprising:
receiving means having a function to receive specification information for specifying a instruction-receiving system from the Web browser and a function to receive a processing request from the Web browser,
acquisition means having a function to acquire contents data corresponding to the processing request from a contents data memory portion,
edit means having a function to edit the contents data into contents data containing processing instructions to send instructions corresponding to the processing request to the instruction-receiving system specified by the specification information, and
send means for sending the contents data to the Web browser,

wherein the processing instructions contained in the contents data edited by the edit means are executed on the Web browser as processing of accessing the instruction-receiving system and reading contents.
2. A Web system according to claim 1, wherein the processing request is a processing request requesting a file list in a specified directory, and the edit means edits the contents data acquired by the acquisition means into the contents data containing the processing instructions to be sent to the instruction-receiving system in which the instructions to request the file list in the specified information are specified by the specified information.
3. A Web system according to claim 1, wherein the processing request is a processing request for requesting transfer of a specified file to a specified forwarding address, and the edit means edits the contents data acquired by the acquisition means into contents data containing processing instructions to send instructions to request the transfer of the specified file to the specified forwarding address to the instruction-receiving system specified by the specification information.
4. A web system according to any one of claims 1, wherein the Web system is provided with a license information memory portion in which a user identifier, specification information specifying the instruction-receiving system and an identifier for authentication capable of uniquely determining the instruction-receiving system specified by the specification information are stored as being mapped, the receiving means has a function to receive the user identifier from the Web browser and a function to receive an authentication request from the Web browser, the acquisition means has a function to acquire contents data corresponding to the authentication request from the contents data memory portion, and the edit means preferably has a function to acquire specification information corresponding to the user identifier and an identifier for authentication from the license information memory portion and to edit the contents data acquired by the acquisition means into contents data containing processing instructions to send authentication instructions using the identifier for authentication to the instruction-receiving system specified by the specification information.
5. An instruction-receiving system according to claim 1, wherein the instruction-receiving system is provided with an instruction memory portion in which instructions corresponding to instructions received from the Web browser are stored and instruction execution means for selecting, when having received instructions corresponding to the processing request from the Web browser, instructions corresponding to the instructions from the instruction memory portion and executing the selected instructions.
6. An instruction-receiving system according to claim 4, wherein the instruction-receiving system is provided with an identifier-for-authentication memory portion in which the identifier for authentication is stored and crosscheck means for crosschecking, when having received authentication instructions using the identifier for authentication from the Web browser, the received identifier for authentication and an identifier for authentication in the identifier-for-authentication memory portion.
7. A Web server according to any one of claims 1, wherein the Web server is provided with a license information memory portion in which a user identifier and specification information specifying the instruction-receiving system are stored as being mapped, a session identifier production memory means having a session identifier memory portion in which a session identifier uniquely produced relative to a session with the Web browser is stored and crosscheck means for crosschecking, when having received the session identifier from the instruction-receiving system, the session identifier and the session identifier stored in the session identifier memory portion; the receiving means has a function to receive the user identifier from the Web browser and a function to receive the authentication request from the Web browser; the acquisition means has a function to acquire contents data corresponding to the authentication request from the contents data memory portion; and the edit means acquires specification information corresponding to the user identifier from the license information memory portion and edits the contents data acquired from the acquisition means into contents data that contains procession instructions to send, to the instruction-receiving system specified by the specification information, a session identifier produced by the session identifier production memory means and return instructions to return the session identifier to the Web server.
8. A contents data providing method for causing a Web server connectable to a Web browser of a client via a network to send contents data in accordance with a processing request from the Web browser;
said contents data being a program file in which instructions for causing the Web browser to execute prescribed processing are described;
said Web server comprising:
a step of receiving specification information for specifying an instruction-receiving system from the Web browser,
a step of receiving a processing request from the Web browser,
an acquisition step of acquiring contents data corresponding to the processing request from a contents data memory portion,
an edit step of editing the contents data into contents data containing processing instructions to send instructions corresponding to the processing request to the instruction-receiving system specified by the specification information, and
a send step of sending the contents data to the Web browser,

wherein the processing instructions contained in the contents data edited at the edit step are executed on the Web browser as processing of accessing the instruction-receiving system and reading contents.
9. A Web system comprising a client provided with a Web browser, a first server and a second server capable of being in communication with the first server and the client;
said first server comprising registration acceptance means for accepting registration of registration information including specification information for specifying an instruction-receiving system, contents data generation means for generating contents data containing processing instructions to send instructions to the instruction-receiving system specified by the specification information contained in the registration information and send means for sending the contents data generated by the contents data generation means to the second server;
said second server comprises a contents data memory portion for storing the contents data received from the first server and send means for sending the contents data to the client on a request from the client;
said contents data being a program file in which instructions for causing the Web browser to execute prescribed processing are described; and
said processing instructions contained in the contents data being executed on the Web browser as processing for accessing the instruction-receiving system and reading contents in the system.
10. A Web system comprising a client provided with a Web browser, a first server and a second server capable of being in communication with the first server and the client; the first server comprising registration acceptance means for accepting registration of registration information including specification information for specifying an instruction-receiving system and send means for sending the registration information accepted by the registration acceptance means to the second server; the second server comprising a registration information memory portion for storing the registration information received from the first server, contents data generation means for generating contents data containing processing instructions to send instructions to the instruction-receiving system specified by the specification information included in the registration information and send means for sending the contents data to the client on a request from the client; the contents data being a program file in which instructions for causing the Web browser to execute prescribed processing are described; and the processing instructions contained in the contents data being executed on the Web browser as processing for accessing the instruction-receiving system and reading contents in the system.
11. A Web system comprising a server and a client capable of being in communication with the server; the server comprising registration acceptance means for accepting registration of registration information including specification information for specifying an instruction-receiving system, contents data generation means for generating contents data containing processing instructions to send instructions to the instruction-receiving system specified by the specification information included in the registration information and send means for sending the contents data generated by the contents data generation means to the client; the client comprising a contents data memory portion for storing the contents data received from the server and a Web browser; the contents data being a program file in which instructions for causing the Web browser to execute prescribed processing are described; and the processing instructions contained in the contents data being executed on the Web browser as processing for accessing the instruction-receiving system and reading contents in the system.
12. A Web system according to claim 9, wherein the Web system comprising a server capable of being in communication with a client provided with a Web browser; the server comprising registration acceptance means for accepting specification information for specifying an instruction-receiving system and registration information including instructions to be sent to the instruction-receiving system, contents data generation means for generating contents data containing processing instructions to send the instructions to the instruction-receiving system specified by the specification information contained in the registration information and send means for sending the contents data to the client on a request from the client; the contents data being a program file in which instructions for causing the Web browser to execute prescribed processing are described; and the processing instructions contained in the contents data being executed on the Web browser as processing for accessing the instruction-receiving system and reading contents in the system.
13. A Web system comprising a server capable of being in communication with a client provided with a Web browser; the server comprising registration acceptance means for accepting registration of specification information for specifying an instruction-receiving system and registration information containing instructions relative to the instruction-receiving system, contents data generation means for generating contents data containing processing instructions to send the instructions to the instruction-receiving system specified by the specification information contained in the registration information and send means for sending the contents data to the client on a request from the client; the contents data being a program file in which instructions for causing the Web browser to execute prescribed processing are described; and the processing instructions contained in the contents data being executed on the Web browser as processing for accessing the instruction-receiving system and reading contents therein.
14. A Web system according to claim 9, wherein the instruction-receiving system has data for graph display, the instructions comprise a reading request of the data for graph display, and the contents data includes an application for graphically displaying the data for graph display.
15. A Web system according to claim 9, wherein the instruction-receiving system has bulletin board display data, the instructions comprise a reading request of the bulletin board display data, and the contents data includes an application for displaying the bulletin board display data on a bulletin board.

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 light emitting device having a first-conduction-type cladding layer, an active layer structure, and a second-conduction-type cladding layer, each of which comprises a III-V compound semiconductor, said active layer structure being located between said first-conduction-type cladding layer and said second-conduction-type cladding layer, said light emitting device comprising:
a first-conduction-type-side electrode configured to inject carriers into said first-conduction-type cladding layer; and
a second-conduction-type-side electrode configured to inject carriers into said second-conduction-type cladding layer,
wherein said first-conduction-type-side electrode has an opening, and said second-conduction-type-side electrode has a main-electrode-portion partially surrounded by said first-conduction-type-side electrode, and an extracting portion configured to extract said main-electrode-portion outside said first-conduction-type-side electrode through the opening, and
said main-electrode-portion is a part of a curve of constant width or a constant-width figure, and an interval between an outer edge of said main-electrode-portion and an inner edge of said first-conduction-type-side electrode is substantially constant.
2. A light emitting device according to claim 1, wherein said active layer structure, said second-conduction-type cladding layer, and said second-conduction-type-side electrode are arranged on a surface of said first-conduction-type cladding layer in a first direction, and said first-conduction-type-side electrode is formed on the surface of said first-conduction-type cladding layer in the first direction to partially surround said active layer structure, said second-conduction-type cladding layer, and said second-conduction-type-side electrode.
3. A light emitting device according to claim 1, further comprising a support substrate,
wherein said support substrate supports one of two surfaces, from which said first-conduction-type-side electrode and said second-conduction-type-side electrode are exposed, of a structure comprising said first-conduction-type cladding layer, said active layer structure, said second-conduction-type cladding layer, said first-conduction-type-side electrode, and said second-conduction-type-side electrode.
4. A light emitting device according to claim 1, wherein the curve of constant width or the constant-width figure includes a circle.
5. A light emitting device according to claim 1, wherein the curve of constant width or the constant-width figure includes a Reuleaux polygon.
6. A light emitting device according to claim 1, wherein the curve of constant width or the constant-width figure includes a Reuleaux triangle.
7. A light emitting device according to claim 1, wherein, assuming W to be a width of said main-electrode-portion, W satisfies
400 \u03bcm\u2266W\u22662500 \u03bcm\u2003\u2003(1),
8. A light emitting device according to claim 1, wherein said extracting-portion includes comprises a portion which narrows toward said main-electrode-portion.
9. A light emitting device according to claim 1, wherein said extracting-portion includes comprises a rectangular portion.
10. A light emitting device according to claim 1, wherein, assuming W to be a width of said main-electrode-portion and L1 to be a width of a portion where said main-electrode-portion and said extracting-portion are in contact with each other, W and L1 satisfy
W20\u2266L1\u2266W\u2003\u2003(2),
11. A light emitting device according to claim 1, wherein, assuming L2 to be an outer edge length of a portion of said second-conduction-type-side electrode which is surrounded by said first-conduction-type-side electrode, and L3 to be an outer edge length of a portion of said second-conduction-type-side electrode which is a part of the curve of constant width or the constant-width figure, L2 and L3 satisfy.
L22\u2266L3\u2266L2\u2003\u2003(3)
12. A light emitting device according to claim 1, wherein, assuming x to be the interval between the outer edge of said main-electrode-portion and the inner edge of said first-conduction-type-side electrode, x satisfies
3 \u03bcm\u2266x\u2266500 \u03bcm\u2003\u2003(4),
13. A light emitting device according to claim 1, wherein said main-electrode-portion comprises a plurality of main-electrode-portions.
14. A light emitting device according to claim 1, wherein a peripheral portion of said second-conduction-type-side electrode is covered with aninsulator.
15. A light emitting device according to claim 1, wherein said first-conduction-type-side electrode is configured to inject carriers into said first-conduction-type cladding layer through an opening formed in aninsulator.
16. A light emitting device according to claim 14, wherein said insulator comprises at least one material selected from the group consisting of SiOx, AlOx, TiOx, TaOx, HfOx, ZrOx, SiNx, AlNx, AlFx, BaFx, CaFx, SrFx, and MgFx.
17. A light emitting device according to claim 14, wherein said insulator comprises a plurality of layers.
18. A light emitting device according to claim 1, wherein said first-conduction-type cladding layer, said active layer structure, and said second-conduction-type cladding layer each comprise an element selected from the group consisting of In, Ga, Al, B, and N.
19. A light emitting device according to claim 1, wherein said active layer structure comprises a quantum well layer and a barrier layer, and, assuming B to be the number of barrier layers and W to be the number of quantum well layers, B and W satisfy
B=W+1\u2003\u2003(5),
20. A light emitting device according to claim 1, further comprising a first-conduction-type contact layer between said first-conduction-type cladding layer and said first-conduction-type-side electrode.
21. A light emitting device according to claim 1, further comprising a second-conduction-type contact layer between said second-conduction-type cladding layer and said second-conduction-type-side electrode.
22. A light emitting device according to claim 1, wherein said first-conduction-type cladding layer comprises an n-type semiconductor layer, and said second-conduction-type cladding layer comprises a p-type semiconductor layer.
23. A light emitting device having a first-conduction-type cladding layer, an active layer structure, and a second-conduction-type cladding layer, each of which comprises a III-V compound semiconductor, said active layer structure being sandwiched between said first-conduction-type cladding layer and said second-conduction-type cladding layer, said light emitting device comprising:
a first-conduction-type-side electrode configured to inject carriers into said first-conduction-type cladding layer; and
a second-conduction-type-side electrode configured to inject carriers into said second-conduction-type cladding layer,
wherein said first-conduction-type-side electrode has an opening, and said second-conduction-type-side electrode has a main-electrode-portion partially surrounded by said first-conduction-type-side electrode, and an extracting portion configured to extract said main-electrode-portion outside said first-conduction-type-side electrode through the opening, and
said extracting portion includes a first extracting portion extending through the opening, and a second extracting portion formed along a part of an outer edge of said first-conduction-type-side electrode.
24. A light emitting device having a first-conduction-type cladding layer, an active layer structure, and a second-conduction-type cladding layer, each of which comprises a III-V compound semiconductor, said active layer structure being sandwiched between said first-conduction-type cladding layer and said second-conduction-type cladding layer, said light emitting device comprising:
a first-conduction-type-side electrode configured to inject carriers into said first-conduction-type cladding layer; and
a second-conduction-type-side electrode configured to inject carriers into said second-conduction-type cladding layer,
wherein said first-conduction-type-side electrode includes a straight portion having an outer edge formed by straight lines, and has an opening in a substantially central portion of said straight portion, and said second-conduction-type-side electrode has a main-electrode-portion partially surrounded by said first-conduction-type-side electrode, and an extracting portion configured to extract said main-electrode-portion outside said first-conduction-type-side electrode through the opening.

What is claimed is:

1. A method of identifying a compound that can induce the formation of -strand assembly of Dm2 comprising:
(a) contacting the compound with Dm2 or an inducible fragment of Dm2; and
(b) determining whether Dm2 or the inducible fragment of Dm2 is induced to form a -strand assembly; wherein a compound is identified when Dm2 or the inducible fragment of Dm2 is induced to form a -strand assembly.
2. The method of claim 1 wherein said determining is performed by circular dichroism measurements.
3. The method of claim 1 wherein said determining is performed by nuclear magnetic resonance.
4. The method of claim 1 wherein said determining is performed by Fourier Transform Infra-red spectroscopy.
5. The method of claim 1 wherein said determining is performed by fluorescence spectroscopy.
6. The method of claim 5, wherein said determining is performed by monitoring the fluorescence of a native tryptophan of Dm2 or of the inducible fragment of Dm2.
7. The method of claim 5, wherein Dm2 or the inducible fragment of Dm2 is labeled with a fluorescent probe, and wherein said determining is performed by monitoring the fluorescence of the fluorescent probe.
8. The method of claim 1 wherein the Dm2 is Hdm2 having the amino acid sequence of SEQ ID NO:8.
9. The method of claim 1 wherein the inducible fragment of Dm2 comprises amino acid residues 235-259 of SEQ ID NO:8, the H1 segment.
10. The method of claim 9 wherein the inducible fragment of Dm2 further comprises amino acid residues 275-289 of SEQ ID NO:8, the H2 segment.
11. The method of claim 1 wherein the inducible fragment of Dm2 comprises amino acid residues 275-289 of SEQ ID NO:8, the H2 segment.
12. A compound identified by the method of claim 1; wherein said compound is not a peptide comprising five or more consecutive amino acids comprised by a naturally occurring protein.
13. A method of identifying a compound that can enhance the rate of -strand assembly of Dm2 induced by Arf comprising:
(a) contacting the compound with Dm2 or an inducible fragment of Dm2, and Arf or an inducing fragment of Arf; and
(b) determining the rate of the -strand assembly of Dm2 or of the inducible fragment of Dm2; wherein a compound is identified when the rate of the -strand assembly of Dm2 or of the inducible fragment of Dm2 increases in the presence of the compound relative to in the absence of the compound.
14. A method of identifying a compound that can inhibit the formation of -strand assembly of Dm2 comprising:
(a) contacting the compound with Dm2 or an inducible fragment of Dm2, and Arf or an inducing fragment of Arf; and
(b) determining the rate of formation of a -strand assembly of Dm2 or the inducible fragment of Dm2; wherein when the rate of formation of the -strand assembly of Dm2 or the inducible fragment of Dm2 decreases in the presence of the compound relative to in its absence, the compound is identified as a compound that can inhibit the formation of -strand assembly of Dm2.
15. A method of identifying a compound that can inhibit the formation of -strand assembly of Dm2 comprising:
(a) contacting the compound with Dm2 or an inducible fragment of Dm2, and Arf or an inducing fragment of Arf; and
(b) determining the amount of formation of a -strand assembly of Dm2 or the inducible fragment of Dm2; wherein when the amount of formation of the -strand assembly of Dm2 or the inducible fragment of Dm2 decreases in the presence of the compound relative to in its absence, the compound is identified as a compound that can inhibit the formation of -strand assembly of Dm2.
16. A method of identifying a compound that can induce the formation of supramolecular assemblies comprised of -strands of Dm2 comprising:
(a) contacting the compound with Dm2 or an inducible fragment of Dm2; and
(b) determining whether Dm2 or the inducible fragment of Dm2 is induced to form supramolecular assemblies comprised of -strands of Dm2; wherein when Dm2 or the inducible fragment of Dm2 is induced to form supramolecular assemblies the compound is identified as a compound that can induce the formation of supramolecular assemblies comprised of -strands of Dm2
17. The method of claim 16 wherein said determining is performed by size exclusion determinations.
18. The method of claim 16 wherein the Dm2 is Hdm2 having the amino acid sequence of SEQ ID NO:8.
19. The method of claim 16 wherein the fragment of Dm2 comprises amino acid residues 235-259 of SEQ ID NO:8, the H1 segment.
20. The method of claim 19 wherein the fragment of Dm2 further comprises amino acid residues 275-289 of SEQ ID NO:8, the H2 segment.
21. The method of claim 16 wherein the fragment of Dm2 comprises amino acid residues 275-289 of SEQ ID NO:8, the H2 segment.
22. A compound identified by the method of claim 16; wherein said compound is not a peptide comprising five or more consecutive amino acids comprised by a naturally occurring protein.
23. A method of treating a patient with cancer or a predisposition for getting cancer comprising administering to the patient a compound that can induce -strand assembly of Hdm2 in a cell.
24. The method of claim 23 wherein the patient has a tumor with cells that are characterized by a lack of sufficient Arf activity to induce cell cycle arrest andor apoptosis; but wherein the cells retain functional p53.
25. A kit for identifying a compound that can induce -strand assembly of Dm2 comprising:
(a) a peptide comprising an amino acid sequence selected from the group consisting of amino acid residues 235-259 of SEQ ID NO:8; amino acid residues 275-289 of SEQ ID NO:8, and both amino acid residues 235-259 and amino acid residues 275-289 of SEQ ID NO:8; and
(b) a peptide that comprises two copies of the Arf motif comprising the amino acid sequence of SEQ ID NO:13.
26. The kit of claim 25 further comprising instructions for identifying a compound that can induce -strand assembly of Dm2.
27. An antibody raised against a peptide comprising an amino acid sequence selected from the group consisting of SEQ ID NO:13, amino acid residues 235-259 of SEQ ID NO:8, and amino acid residues 275-289 of SEQ ID NO:8.
28. The antibody of claim 26 that is a humanized antibody.
29. A method of inducing apoptosis in a cell by administering the antibody of claim 28 to the cell.
30. A method of treating a patient having a tumor comprising administering the antibody of claim 29 to the patient; wherein the tumor contains cells characterized by having functional Arf, functional Hdm2 and functional p53.
31. A method of designing a compound that is predicted to mimic the ability of Arf to induce the formation of the -strand assembly of Dm2, said method comprising:
(a) generating a computer model of a structure of an Arf-Dm2 complex based on:
(i) the amino acid sequence of the portions of Arf and Dm2 involved in the Arf-Dm2 complex; and
(ii) the circular dichroism and Fourier Transform Infra-red spectra obtained for the Arf-Dm2 complex; and

(b) designing a compound to bind to Dm2 as Arf does using the computer model of the structure of the Arf-Dm2 binding complex generated in step (a); wherein said compound is predicted to mimic the ability of Arf to induce the formation of the -strand assembly of Dm2.
32. The method of claim 31, further comprising:
(c) organically synthesizing said compound;
(d) contacting the synthesized compound with a Dm2 or an inducible fragment of Dm2; and
(e) determining whether the Dm2 or the inducible fragment of Dm2 has formed of a -strand assembly; wherein when the Dm2 or the inducible fragment of Dm2 is induced to form a -strand assembly in step (d), the synthesized compound is identified as a compound that mimics the ability of Arf to induce the formation of the -strand assembly of Dm2.
33. A peptide consisting of the amino acid sequence of SEQ ID NO:13.
34. The peptide of claim 33 consisting of the amino acid sequence selected from the group consisting of SEQ ID NO:9, SEQ ID NO:10, SEQ ID NO:11 and SEQ ID NO:12.
35. A fusion protein comprising a peptide consisting of the amino acid sequence of SEQ ID NO:13.
36. A peptide consisting of two segments of an Arf protein, wherein each segment consists of the amino acid sequence of SEQ ID NO:13.
37. The peptide of claim 36 wherein at least one segment consists of the amino acid sequence selected from the group consisting of SEQ ID NO:9, SEQ ID NO:10, SEQ ID NO:11 and SEQ ID NO:12.
38. The peptide of claim 37 wherein the other segment consists of the amino acid sequence selected from the group consisting of SEQ ID NO:9, SEQ ID NO:10, SEQ ID NO:11 and SEQ ID NO:12.
39. A fusion protein comprising a peptide consisting of two segments of an Arf protein, wherein each segment consists of the amino acid sequence of SEQ ID NO:13.
40. A peptide consisting of amino acid residues 235-259 of SEQ ID NO:8, the H1 segment.
41. A fusion protein comprising a peptide consisting of amino acid residues 235-259 of SEQ ID NO:8.
42. A peptide consisting of amino acid residues 275-289 of SEQ ID NO:8.
43. A fusion protein comprising a peptide consisting of amino acid residues 275-289 of SEQ ID NO:8.
44. A peptide consisting of amino acid residues 235-259 and amino acid residues 275-289 of SEQ ID NO:8.
45. A fusion protein comprising a peptide consisting of amino acid residues 235-259 and amino acid residues 275-289 of SEQ ID NO:8.
46. A composition comprising two segments of an Arf protein chemically joined via a non-peptide linkage, wherein each segment comprises the amino acid sequence of SEQ ID NO:13.

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 operating a fuel injection system having a piezoelectric element (10, 20, 30, 40, 50 or 60) for controlling the amount of fuel injected into a combustion engine characterized in that the piezoelectric element (10, 20, 30, 40, 50 or 60) is controlled based upon the charge it is carrying.
2. Method according to claim 1, characterized in that a measured value of a current flowing into the piezoelectric element (10, 20, 30, 40, 50 or 60) is obtained and used for determining the charge the piezoelectric element (10, 20, 30, 40, 50 or 60) is carrying.
3. Method according to claim 1, characterized in that a measured value of a current flowing into the piezoelectric element (10, 20, 30, 40, 50 or 60) via a current sensor is obtained.
4. Method according to claim 3, characterized in that the current sensor comprises a bridge circuit.
5. Method according to claim 3 or 4, characterized in that the current sensor is calibrated.
6. Method according to claim 3, characterized in that the measured value of the current flowing into the piezoelectric element (10, 20, 30, 40, 50 or 60) via an integrator is integrated.
7. Method according to claim 6, characterized in that the integrator is calibrated.
8. Method according to claim 7, characterized in that the integrator is calibrated using at least one of a first calibration, a second calibration and a third calibration.
9. Method according to claim 8, characterized in that the first calibration calibrates a reference voltage.
10. Method according to claim 8 or 9, characterized in that the second calibration calibrates a bridge circuit arrangement.
11. Method according to claim 8, 9 or 10, characterized in that the third calibration calibrates a time constant of the integrator.
12. Fuel injection system having a piezoelectric element (10, 20, 30, 40, 50 or 60) for controlling the amount of fuel injected into a combustion engine, characterized in that the piezoelectric element (10, 20, 30, 40, 50 or 60) is controlled based upon the charge it is carrying.