All The Claims

1. A method, comprising:
receiving signal quality information associated with wireless signals communicated with each of a plurality of mobile endpoints;
receiving location information identifying locations of each of the plurality of mobile endpoints;
based on the received signal quality information and the received location information, identifying a first region of an area, the first region having a first signal quality;
based on the received signal quality information and the received location information, identifying a second region of the area, the second region having a second signal quality;
wherein the second signal quality is higher than the first signal quality.
2. The method of claim 1, further comprising, based on the received signal quality information and the received location information, identifying a third region of the area, the third region having the first signal quality.
3. The method of claim 1, further comprising:
based on the received signal quality information and the received location information:
identifying a first one or more regions of the area, the first one or more regions each having the first signal quality; and
identifying a second one or more regions of the area, the second one or more regions each having a second signal quality; and

based on the identification of the first one or more regions and the second one or more regions, creating a map to identify regions of different signal qualities.
4. The method of claim 1, further comprising monitoring mobile endpoint jitter buffers to determine the signal quality information associated with wireless signals received by each of the plurality of mobile endpoints.
5. The method of claim 1, further comprising identifying packet loss to determine the signal quality information associated with wireless signals received by each of the plurality of mobile endpoints.
6. The method of claim 1, wherein identifying the first region of the area comprises identifying a boundary representing locations at which a threshold signal quality is crossed.
7. The method of claim 1, wherein receiving signal quality information associated with wireless signals received by each of a plurality of mobile endpoints comprises receiving notifications from the plurality of mobile endpoints that the endpoints are losing keep alive signals with one or more base stations.
8. The method of claim 1, further comprising transmitting a notification that the first region having the first signal quality has been identified.
9. A system, comprising:
an interface operable to:
receive signal quality information associated with wireless signals communicated with each of a plurality of mobile endpoints;
receive location information identifying locations of each of the plurality of mobile endpoints;
a processor coupled to the interface and operable to:
based on the received signal quality information and the received location information, identify a first region of an area, the first region having a first signal quality;
based on the received signal quality information and the received location information, identify a second region of the area, the second region having a second signal quality; and
wherein the second signal quality is higher than the first signal quality.
10. The system of claim 9, wherein the processor is further operable to, based on the received signal quality information and the received location information, identify a third region of the area, the third region having the first signal quality.
11. The system of claim 9, wherein the processor is further operable to:
based on the received signal quality information and the received location information:
identify a first one or more regions of the area, the first one or more regions each having the first signal quality; and
identify a second one or more regions of the area, the second one or more regions each having a second signal quality; and
based on the identification of the first one or more regions and the second one or more regions, create a map to identify regions of different signal qualities.
12. The system of claim 9, wherein the processor is further operable to monitor mobile endpoint jitter buffers to determine the signal quality information associated with wireless signals received by each of the plurality of mobile endpoints.
13. The system of claim 9, wherein the processor is further operable to identify packet loss to determine the signal quality information associated with wireless signals received by each of the plurality of mobile endpoints.
14. The system of claim 9, a processor operable to identify the first region of the area comprises a processor operable to identify a boundary representing locations at which a threshold signal quality is crossed.
15. The system of claim 9, the interface operable to receive signal quality information associated with wireless signals received by each of a plurality of mobile endpoints comprises an interface operable to receive notifications from the plurality of mobile endpoints that the endpoints are losing keep alive signals with one or more base stations.
16. The system of claim 9, wherein the processor is further operable to transmit a notification that the first region having the first signal quality has been identified.
17. Logic embodied in a non-transitory computer readable medium, the non-transitory computer readable medium comprising code operable to:
receive signal quality information associated with wireless signals communicated with each of a plurality of mobile endpoints;
receive location information identifying locations of each of the plurality of mobile endpoints;
based on the received signal quality information and the received location information, identify a first region of an area, the first region having a first signal quality;
based on the received signal quality information and the received location information, identify a second region of the area, the second region having a second signal quality; and
wherein the second signal quality is higher than the first signal quality.
18. The non-transitory computer readable medium of claim 17, wherein the code is further operable to, based on the received signal quality information and the received location information, identify a third region of the area, the third region having the first signal quality.
19. The non-transitory computer readable medium of claim 17, wherein the code is further operable to: based on the received signal quality information and the received location information: identify a first one or more regions of the area, the first one or more regions each having the first signal quality; and identify a second one or more regions of the area, the second one or more regions each having a second signal quality; and based on the identification of the first one or more regions and the second one or more regions, create a map to identify regions of different signal qualities.
20. The non-transitory computer readable medium of claim 17, wherein the code is further operable to monitor mobile endpoint jitter buffers to determine the signal quality information associated with wireless signals received by each of the plurality of mobile endpoints.
21. The non-transitory computer readable medium of claim 17, wherein the code is further operable to identify packet loss to determine the signal quality information associated with wireless signals received by each of the plurality of mobile endpoints.
22. The non-transitory computer readable medium of claim 17, wherein code operable to identify the first region of the area comprises code operable to identify a boundary representing locations at which a threshold signal quality is crossed.
23. The non-transitory computer readable medium of claim 17, wherein code operable to receive signal quality information associated with wireless signals received by each of a plurality of mobile endpoints comprises code operable to receive notifications from the plurality of mobile endpoints that the endpoints are losing keep alive signals with one or more base stations.
24. The non-transitory computer readable medium of claim 17, wherein the code is further operable to transmit a notification that the first region having the first signal quality has been identified.
25. A system, comprising:
means for receiving signal quality information associated with wireless signals communicated with each of a plurality of mobile endpoints;
means for receiving location information identifying locations of each of the plurality of mobile endpoints;
means for, based on the received signal quality information and the received location information, identifying a first region of an area, the first region having a first signal quality;
means for, based on the received signal quality information and the received location information, identifying a second region of the area, the second region having a second signal quality; and
wherein the second signal quality is higher than the first signal quality.
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 of producing a gas container having a resin liner constituted by joining a plurality of liner constituting members, the liner constituting members each having at least a tubular part, the method comprising: providing the plurality of resin liner constituting members,
the plurality of resin liner constituting members including a first liner constituting member having a first joining portion and a second liner constituting member having a second joining portion, the first joining portion having an inward chamfered first joining end surface, and a first extending portion extending externally from a tip end portion of the first joining end surface, the second joining portion having a second joining end surface externally chamfered along the first joining end surface;
a first step of constituting the first joining end surface by a laser transmitting member and constituting the second joining end surface by a laser absorbing member;
a second step of bringing the first joining end surface into contact with the second joining end surface and bringing the first extending portion into contact with an outer peripheral surface of the second joining portion after the first step; and
a third step of irradiating the liner constituting members with laser from a side of the first joining portion to join the first joining end surface and the second joining end surface by laser welding which are brought into contact with each other after the second step; and
a step of shaving the first extending portion so that joints of outer peripheral surfaces of the first and second liner constituting members have the same plane after the third step.
2. The method of producing the gas container according to claim 1, wherein the second step is performed by externally bringing the first joining portion into contact with the second joining portion, and
the third step is performed by irradiating the liner constituting members with the laser from the side of the first joining portion by a laser irradiation device arranged outside the first and second liner constituting members.
3. The method of producing the gas container according to claim 1, wherein the third step includes irradiating the liner constituting members with the laser in a state in which a pressure difference is applied between the inside and the outside of the first and second liner constituting members.
4. The method of producing the gas container according to claim 3, wherein the application of the pressure difference in the third step is performed by regulating at least one of an inner pressure and an outer pressure of the first and second liner constituting members.
5. The method of producing the gas container according to claim 4, wherein the application of the pressure difference in the third step is performed by bringing the first and second liner constituting members into a substantially internally sealed state to reduce a pressure of a substantially sealed space or pressurize the sealed space.
6. The method of producing the gas container according to claim 5, wherein the application of the pressure difference in the third step is performed by reducing the pressure of the sealed space or pressurizing the sealed space via a communicating portion disposed on at least one of the first and second liner constituting members.
7. The method of producing the gas container according to claim 1, wherein the second step is performed by overlapping and arranging the first joining portion and the second joining portion in an axial direction of the first and second liner constituting members, and bringing overlapped portions of the joining portions into contact with each other.
8. The method of producing the gas container according to claim 1, further comprising, between the second step and the third step, a step of performing an annealing treatment in a state in which the first joining portion and the second joining portion are brought into contact with each other.
9. The method of producing the gas container according to claim 1, wherein the third step is performed by subjecting, to the laser welding, the first joining end surface and the second joining end surface brought into contact with each other over a circumferential direction of the first and second liner constituting members while relatively rotating the first and second liner constituting members with respect to the laser irradiation device.
10. The method of producing the gas container according to claim 1, wherein the third step is performed in a low oxygen atmosphere.
11. The method of producing the gas container according to claim 1, wherein the first step is performed by constituting the first liner constituting member by a laser transmitting member, and constituting the second liner constituting member by a laser absorbing member.
12. A method of producing the gas container having a resin liner constituted by joining a plurality of liner constituting members, the liner constituting members each having at least a tubular part, the method comprising: providing the plurality of resin liner constituting members,
the plurality of resin liner constituting members including a first liner constituting member having a first joining portion and a second liner constituting member having a second joining portion, the first joining portion having an inward chamfered first joining end surface and a first extending portion extending externally from a tip end portion of the first joining end surface, the second joining portion having a second joining end surface externally chamfered along the first joining end surface and a second extending portion extending from a tip end portion of the second joining end surface;
a first step of constituting the first joining end surface by a laser transmitting member and constituting the second joining end surface by a laser absorbing member;
a second step of bringing the first joining end surface into contact with the second joining end surface, bringing the first extending portion into contact with an outer peripheral surface of the second joining portion, and bringing the second extending portion into contact with an inner peripheral surface of the first joining portion after the first step; and
irradiating the liner constituting members from a side of the first joining portion with laser to join the first joining end surface and the second joining end surface by laser welding which are brought into contact with each other after the second step.
13. The method of producing the gas container according to claim 1, further comprising, before the third step,
a preliminary heating step of preliminarily heating at least one of the first and second liner constituting members to vaporize a water content.
14. The method of producing the gas container according to claim 13, wherein the preliminary heating step is performed by preliminarily heating at least one of the first and second joining portions.
15. The method of producing the gas container according to claim 14, wherein the preliminary heating step is performed by preliminarily heating the first and second joining portions brought into contact with each other.
16. The method of producing the gas container according to claim 15, wherein the preliminary heating step is performed by heating the first and second joining portions brought into contact with each other from at least one of the inside and the outside of the first and second liner constituting members brought into contact with each other.
17. The method of producing the gas container according to claim 16, wherein the preliminary heating step is performed by preliminarily heating the first and second joining portions brought into contact with each other over a circumferential direction while relatively rotating the first and second liner constituting members brought into contact with each other with respect to a preliminary heating device having a heat source.
18. The method of producing the gas container according to claim 17, wherein the third step is performed by irradiating the first and second joining portions brought into contact with each other with the laser over a circumferential direction while relatively rotating the first and second liner constituting members brought into contact with each other with respect to a laser irradiation device which irradiates the portions with the laser.
19. The method of producing the gas container according to claim 18, wherein the preliminary heating device is positioned on an upstream side of the laser irradiation device in a rotating direction of the first and second liner constituting members brought into contact with each other.
20. The method of producing the gas container according to claim 13, wherein the preliminary heating device which executes the preliminary heating step is at least one of a heater, a hot air device, a high-frequency induction heating device and the laser irradiation device.
21. The method of producing the gas container according to claim 13, further comprising, prior to the preliminary heating step, a step of disposing a heat generating material on at least one of the first joining portion and the second joining portion.
22. The method of producing the gas container according to claim 21, wherein the heat generating material is at least one of a ceramic, graphite, a resin and a metal.
23. The method of producing the gas container according to claim 13, wherein the preliminary heating step is performed by preliminarily heating the joining portions based on a measurement result of a water content measurement device which measures a water content of the first and second joining portions.
24. The method of producing the gas container according to claim 12, further comprising, after the third step, a step of shaving the first extending portion so that joints of outer peripheral surfaces of the first and second liner constituting members have the same plane.
25. The method of producing the gas container according to claim 1, wherein the gas container is constituted so that a high-pressure combustible gas is stored.
26. The method of producing the gas container according to claim 1, further comprising, after shaving the first extending portion, a step of arranging a reinforcement layer on an outer periphery of the resin liner.
27. The method of producing the gas container according to claim 24, further comprising, after shaving the first extending portion, a step of arranging a reinforcement layer on an outer periphery of the resin liner.
28. The method of producing the gas container according to claim 1, wherein the second joining portion has a second extending portion extending inward from a tip end portion of the second joining end surface, and in the second step, the second extending portion is brought into contact with an inner peripheral surface of the first joining portion.
29. The method of producing the gas container according to claim 1, further comprising, before the third step, a preliminary heating step of preliminarily heating at least one of the first and second liner constituting members to vaporize a water content.
30. The method of producing the gas container according to claim 29, wherein a preliminary heating device which executes the preliminary heating step is at least one of a heater, a hot air device, a high-frequency induction heating device or a laser irradiation device.
31. The method of producing the gas container according to claim 29, further comprising, prior to the preliminary heating step, a step of disposing a heat generating material on at least one of the first joining portion and the second joining portion.
32. The method of producing the gas container according to claim 29, wherein the preliminary heating step is performed by preliminarily heating the joining portion based on a measurement result of a water content measurement device which measures the water content of the first and second joining portions.

1. A hard disk drive (HDD) comprising:
at least one rotatable disk;
at least one write element configured for writing data to the disk in isolated tracks and in bands, wherein at least two tracks establish a band; and
at least one HDD controller controlling the write element, the controller using a log-structured file system defining segments, each segment corresponding to at least one of: a respective band, and an isolated track, wherein the log-structured file system uses an error correction code (ECC) block size larger than a physical sector size of the disk.
2. The HDD of claim 1, wherein at least some bands include at least three contiguous tracks.
3. The HDD of claim 1, wherein the write element is configured for perpendicular recording.
4. The HDD of claim 1, wherein the tracks within a band are shingled.
5. (canceled)
6. The HDD of claim 1, wherein the log-structured file system uses a virtual address table (VAT) to implement shingled track writing.
7. The HDD of claim 6, wherein the VAT maps virtual sector locations to actual sector locations.
8. The HDD of claim 6, wherein the VAT is stored on the disk in at least one of a location with non-overlapping tracks where random access writes can be performed, and a region with shingled written bands, using a log structured storage approach.
9. The HDD of claim 6, wherein the HDD is part of a RAID system including a RAID controller, the RAID controller accessing the VAT to remap sectors as required for shingled track writing.
10-25. (canceled)
26. A hard disk drive (HDD) comprising:
at least one rotatable disk;
at least one write element configured for writing data to the disk in isolated tracks and in bands, wherein at least two tracks establish a band; and
at least one HDD controller controlling the write element, the controller using a log-structured file system defining segments, each segment corresponding to at least one of: a respective band, and an isolated track, wherein the tracks within a band are shingled.
27. The HDD of claim 26, wherein the log-structured file system uses an error correction code (ECC) block size larger than a physical sector size of the disk.
28. The HDD of claim 26, wherein at least some bands include at least three contiguous tracks.
29. The HDD of claim 26, wherein the write element is configured for perpendicular recording.
30. The HDD of claim 26, wherein the log-structured file system uses a virtual address table (VAT) to implement shingled track writing.
31. The HDD of claim 30, wherein the VAT maps virtual sector locations to actual sector locations.
32. The HDD of claim 30, wherein the VAT is stored on the disk in at least one of: a location with non-overlapping tracks where random access writes can be performed, and a region with shingled written bands, using a log structured storage approach.
33. The HDD of claim 30, wherein the HDD is part of a RAID system including a RAID controller, the RAID controller accessing the VAT to remap sectors as required for shingled track writing.
34. A hard disk drive (HDD) comprising:
at least one rotatable disk;
at least one write element configured for writing data to the disk in isolated tracks and in bands, wherein at least two tracks establish a band; and
at least one HDD controller controlling the write element, the controller using a log-structured file system defining segments, each segment corresponding to at least one of: a respective band, and an isolated track, wherein the log-structured file system uses a virtual address table (VAT) to implement shingled track writing.
35. The HDD of claim 34, wherein the tracks within a band are shingled.
36. The HDD of claim 34, wherein the log-structured file system uses an error correction code (ECC) block size larger than a physical sector size of the disk.
37. The HDD of claim 34, wherein at least some bands include at least three contiguous tracks.
38. The HDD of claim 34, wherein the write element is configured for perpendicular recording.
39. The HDD of claim 34, wherein the VAT maps virtual sector locations to actual sector locations.
40. The HDD of claim 34, wherein the VAT is stored on the disk in at least one of: a location with non-overlapping tracks where random access writes can be performed, and a region with shingled written bands, using a log structured storage approach.
41. The HDD of claim 34, wherein the HDD is part of a RAID system including a RAID controller, the RAID controller accessing the VAT to remap sectors as required for shingled track writing.

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. An information recording apparatus comprising:
a recording unit which irradiates a recording light to a disc on which prepits are formed, detects return light from the disc and outputs return light quantity data;
a data obtaining period determining unit which determines a data obtaining period in which the return light is not affected by the prepit;
a return light quantity data output unit which obtains and outputs the return light quantity data in the data obtaining periods; and
a controller which performs control based on the return light quantity data output from the return light quantity data output unit.
2. The information recording apparatus according to claim 1, wherein the data obtaining period determining unit determines a period other than a period in which the recording unit forms 14T recording mark or 14T space as the data obtaining period.
3. The information recording apparatus according to claim 1, further comprising a prepit detector which detects a period in which the prepit exists based on the return light, wherein the data obtaining period determining unit determines a period other than a period in which the prepit exists as the data obtaining period.
4. The information recording apparatus according to claim 1, wherein the controller comprising:
a determining unit which determines whether a power of the recording light is proper or not based on a level of the return light quantity data at a predetermined timing; and
a power controller which controls the power of the recording light based on a result of a determination by the determining unit.
5. The information recording apparatus according to claim 4, wherein the determining unit determines whether the power of the recording light is proper or not based on an average level which is obtained by averaging the levels of the return light quantity data at a plurality of the predetermined timing.
6. The information recording apparatus according to claim 4, wherein the data obtaining period determining unit determines a period in which the recording unit forms recording marks of 9T to 11T as the data obtaining period.
7. A control method of an information recording apparatus comprising:
a process of irradiating a recording light on a disc on which prepits are formed;
a process of detecting return light quantity from the disc and outputting return light quantity data;
a process of determining a data obtaining period in which the return light is not affected by the prepits;
a process of obtaining and outputting the return light quantity data in the data obtaining period; and
a process of performing control based on the return light quantity data obtained in the data obtaining period.