Author: claimsbot

What we claimed is:

1. A semiconductor memory device accessible by the use of logical addresses from a host system which divides and manages file data by the use of clusters each of which is composed of a plurality of sectors and is a unit for division and management of the file data, comprising:
a memory section composed of the plurality of sectors, and capable of erasing data stored therein for each block; and
a control section for transforming a logical address received by the host system to a physical address so that a logical address of a head sector of said cluster corresponds to a physical address of a head sector of said block, and for accessing the memory section by the use of the physical address thus transformed.
2. The semiconductor memory device in accordance with claim 1, wherein said logical address is transformed to said physical address by applying an address offset value to said logical address.
3. The semiconductor memory device in accordance with claim 2, wherein a computation of said address offset value is executed by the use of information concerning total storage capacity of said memory section immediately after beginning power supply.
4. The semiconductor memory device in accordance with claim 2, wherein a computation of said address offset value is executed by the use of information concerning a partition prepared on said memory section.
5. The semiconductor memory device in accordance with claim 4, wherein the computation of said address offset value is executed when the information pertaining to said partition is written.
6. The semiconductor memory device in accordance with claim 5, wherein the information pertaining to said partition is data written into an address 0 of said logical address.
7. The semiconductor memory device in accordance with claim 2, wherein a computation of said address offset value is executed by the use of managing information used for managing said file data in a file system prepared on said memory section.
8. The semiconductor memory device in accordance with claim 7, wherein the computation of said address offset value is executed when said managing information is written.
9. An information processing device comprising:
the semiconductor memory device in accordance with any one of claims 1 to 8.
10. A host system which divides and manages file data using clusters each of which is composed of a plurality of sectors and is a unit for division and management of the file data, wherein in accessing a memory device which is composed of a plurality of sectors and is capable of erasing data for each block, a logical address is transformed to a physical address so that a logical address of a head sector of said cluster corresponds to a physical address of a head sector of said block, and then accesses said memory device by the use of the physical address thus transformed.

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 well treatment method for treating a formation around a wellbore, the formation having a fracturing pressure, comprising:
(a) transporting a degradable thermoplastic polymer in a solid bulk form down the wellbore;
(b) displacing a polymer-continuous liquid phase comprising the degradable thermoplastic polymer from the wellbore into the formation at a pressure greater than the fracturing pressure of the formation.
2. The method of claim 1 further comprising the step of allowing a time for the degradable polymer to form the polymer-continuous liquid phase in the wellbore.
3. The method of claim 1 wherein the polymer-continuous liquid phase, having a specific gravity, is displaced from the wellbore by a fluid having a lower specific gravity than the specific gravity of the polymer-continuous liquid phase.
4. The method of claim 1 further comprising the step after step (b) of allowing a time for the degradable polymer to degrade.
5. The method of claim 1 further comprising the step of forming a hydraulic fracture in the formation around the wellbore and then performing step (a) and step (b) before closure of the hydraulic fracture.
6. The method of claim 1 further comprising the step of forming a hydraulic fracture in the formation around the wellbore and then performing step (a) and step (b) after closure of the hydraulic fracture.
7. The method of claim 1 further comprising the step of performing another operation in the wellbore after step (b) and before allowing a time for the degradable polymer to degrade.
8. The method of claim 7 wherein the other operation in the wellbore is gravel packing.
9. The method of claim 1 wherein at least a portion of the degradable polymer contains a proppant.
10. The method of claim 1 further comprising the step of transporting ball sealers down the wellbore along with or following the degradable polymer.
11. The method of claim 1 wherein the degradable polymer comprises a water-degradable polymer.
12. The method of claim 11 wherein the water-degradable polymer comprises a polyester.
13. The method of claim 12 wherein the polyester comprises a polylactide.
14. The method of claim 13 wherein the polylactide is poly (D, L-lactide).
15. The method of claim 13 wherein the polylactide is a mixture of isomers having a composition in the range from about 10 per cent D-isomer to about 90 per cent D-isomer.
16. The method of claim 1 wherein the degradable polymer forms a viscous liquid when in contact with water.
17. The method of claim 1 wherein the degradable polymer is degraded by a process of solution in a liquid that is produced from or later injected into the formation.
18. The method of claim 17 wherein the degradable polymer is wax.
19. The method of claim 1 wherein step (a) is performed by forming a slurry of the degradable polymer in a carrier fluid and pumping a displacement fluid down the wellbore following the carrier fluid.
20. The method of claim 1 wherein step (a) is performed by placing the degradable polymer in a carrier fluid in the wellbore and allowing the degradable polymer to fall by gravity down the wellbore.
21. The method of claim 1 wherein the polymer-continuous liquid phase is formed by accumulating the degradable polymer in proximity to one or more perforations in the wellbore.
22. The method of claim 1 wherein the polymer-continuous liquid phase is formed by accumulating the degradable polymer at a selected depth in the wellbore above the formation.
23. The method of claim 1 wherein in step (a) the polymer-continuous liquid phase is pumped from the surface along with a low-viscosity fluid.
24. A method for hydraulic fracturing of a formation penetrated by a wellbore, comprising:
(a) forming a slurry comprising a degradable thermoplastic polymer in a solid form in a carrier fluid and placing the slurry in the wellbore;
(b) with a displacement fluid having a selected specific gravity, displacing the slurry down the wellbore to a selected location in the wellbore;
(c) converting the slurry to a continuous liquid phase having a specific gravity and comprising the carrier fluid dispersed in the degradable polymer at the selected location in the wellbore; and
(d) applying pressure to the displacement fluid, the selected specific gravity of the displacement fluid being less than the specific gravity of the continuous liquid phase, to inject the continuous liquid phase into the formation to form a hydraulic fracture.
25. The method of claim 24 wherein at least a portion of the degradable polymer contains a proppant.

1. A turbomachine combustion chamber comprising at least one substantially L-shaped fuel injector comprising an arm with one end connected to an injection head and its other end designed to be connected to fuel feed means, and means for mounting and fastening the injector in an orifice of a casing of the chamber, said means including an outer collar carried by the arm of the injector, wherein the means for mounting and fastening the injector further comprise an annular spacer surrounding the arm of the injector and interposed between the collar of said arm and the casing, said spacer being sectorized and removable during dismantling of the means for fastening the injector on the casing so as to enable the injector to pivot in the orifice in the casing.
2. A chamber according to claim 1, wherein the spacer is made up of at least two sectors placed end to end.
3. A chamber according to claim 2, wherein each spacer sector includes, at one of its circumferential ends, a projecting portion designed to engage in a recessed portion of complementary shape provided at the other circumferential end of another spacer sector so as to make the spacer easier to mount, easier to keep together while the injector is being fastened, and easier to provide sealing between its sectors.
4. A chamber according to claim 2, wherein the means for mounting and fastening the injector comprise a clamping collar surrounding the spacer sectors in order to hold them together.
5. A chamber according to claim 1, wherein the means for mounting and fastening the injector include at least one annular sealing gasket designed to be interposed between the collar of the arm and the spacer, between said collar and the casing, andor between the spacer and the casing.
6. A chamber according to claim 1, that is of substantially rectangular, triangular, or T-shaped section.
7. A chamber according to claim 1, wherein the spacer includes a spherical or frustoconical annular surface for bearing against the casing of the chamber.
8. A chamber according to claim 1, wherein the collar includes screw-fastening orifices to enable the injector to be fastened to the chamber casing and to enable the spacer to be clamped between the collar of the arm and the casing.
9. A chamber according to claim 1, wherein the means for mounting and fastening the injector comprise a removable annular clamp surrounding the arm of the injector and including screw-passing orifices for fastening the injector on the casing of the chamber and for clamping the collar of the arm and the spacer between the clamp and the casing.
10. A chamber according to claim 9, wherein the means for mounting and fastening the injector include at least one annular sealing gasket interposed between the clamp and the collar andor between the clamp and the casing.
11. A chamber according to claim 1, including an annular casing having a plurality of substantially radial orifices, each having a fuel injector mounted therein, each orifice being formed in an outer boss of the casing, the above-mentioned spacer being interposed between the collar of the injector arm and said boss.
12. A method of mounting andor dismantling a fuel injector in a combustion chamber according to claim 1, wherein the method comprises the steps consisting in removing the spacer and then in moving the injector to pivot about a transverse axis so that its head engagesdisengages infrom a mixer of the chamber.

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 detector for an imaging system comprising:
an array of pixels forming rows and columns, and configured to generate signals based upon radiation impacting the detector;
a plurality of scan lines, each scan line being adapted to be coupled to a plurality of rows of pixels; and
a multiplexing circuit for selectively coupling the rows of pixels to respective scan lines for read out of the signals.
2. The detector as in claim 1, further comprising a plurality of column readout lines coupled to a plurality of columns of pixels.
3. The detector as in claim 2, wherein each column readout line is coupled to two columns of pixels.
4. The detector as in claim 1, wherein the multiplexing circuit includes a first set of switches for selecting rows of pixels for readout.
5. The detector as in claim 1, wherein the multiplexing circuit includes a second set of switches for selecting columns of pixels for readout.
6. The detector as in claim 1, wherein each scan line is coupled to two rows of pixels.
7. The detector as in claim 1, wherein the detector includes a plurality of column readout lines coupled to the pixels, and wherein the number of pixels is at least two times the sum of the number of scan lines and column readout lines.
8. The detector as in claim 1, further comprising a control circuit to regulate switching of the multiplexer circuit.
9. The detector as in claim 1, wherein each of the pixels includes a thin film transistor and a photodiode.
10. A digital imaging system, comprising:
a source of radiation;
a control circuit to regulate the source of radiation; and
a detector for receiving radiation from the source of radiation and for generating signals therefrom, the detector having an array of pixels forming rows and columns, and a plurality of scan lines, each scan line being adapted to be coupled to a plurality of rows of pixels, and a mulitplexing circuit for selectively coupling the rows of pixels to respective scan lines for read out of the signals.
11. The system as in claim 10, further comprising a plurality of column readout lines coupled to a plurality of column of pixels.
12. The system as in claim 10, wherein each column readout line is coupled to two columns of pixels.
13. The system as in claim 10, wherein the multiplexing circuit includes a first set of switches for selecting rows of pixels for readout.
14. The system as in claim 10, wherein the multiplexing circuit includes a second set of switches for selecting columns of pixels for readout.
15. The system as in claim 10, wherein each scan line is coupled to two rows of pixels.
16. The system as in claim 10, wherein the system includes a plurality of column readout lines coupled to the pixels, and wherein the number of pixels is at least two times the sum of the number of scan lines and column readout lines.
17. The system as in claim 10, further comprising a control circuit to regulate switching of the multiplexer circuit.
18. The system as in claim 10, wherein each of the pixels includes a thin film transistor and a photodiode.
19. The system as in claim 10, wherein the source of radiation is an x-ray source.
20. The system as in claim 10, further comprising data acquisition circuitry for receiving signals generated by the detector and reconstructing useful images based thereon.
21. A method for acquiring signals from discrete pixels in a detector, the detector including a matrix of rows and columns of pixels, each pixel configured to generate a signal based upon radiation received, the method comprising:
commanding a multiplexer circuit to selectively couple desired pixels of the rows and columns of pixels to enabling scan lines;
reading signals from the pixels of the desired rows and columns.
22. The method as recited in claim 21, wherein each of the scan lines is adapted for coupling to a plurality of rows of pixels via the multiplexing circuit.
23. The method as recited in claim 21, wherein the step of commanding a multiplexing circuit includes commanding a first multiplexing circuit for coupling pixels of each scan line to desired columns of pixels for read out.
24. The method as in claim 21, wherein the step of reading the signals from the pixels includes reading signals from one of a plurality of a columns of pixels coupled to a respective column of readout lines.