1460709410-01a33ff2-4405-42a5-aac2-39c0dad0557d

1-11. (canceled)
12. An information processing apparatus for selecting a content piece satisfying a predetermined condition from a content group, the information processing apparatus comprising:
content classifying means for classifying each of content pieces constituting the content group into any of a plurality of first clusters in each of layers associated with items of metadata of the content pieces according to classification of the metadata by a distance measure for the metadata, the classification of the metadata being defined for each of the layers;
holding means for holding a database indicating correspondences between the content pieces and the first clusters in the layers into which the content pieces are classified;
specifying means for specifying a first cluster corresponding to the predetermined condition for each of the layers from among the first clusters and specifying a content piece corresponding to the specified first cluster from among the content pieces; and
providing means for providing the content piece specified by the specifying means.
13. The information processing apparatus according to claim 12, further comprising storing means for storing a preference value indicating a degree of preference of a user in association with each of the first clusters into which the content pieces are classified by the content classifying means,
wherein the specifying means specifies a first cluster from among the first clusters on the basis of the preference values stored by the storing means, and specifies a content piece corresponding to the specified first cluster from among the content pieces.
14. The information processing apparatus according to claim 13, wherein the specifying means further specifies from among the content pieces a content piece corresponding to the specified first cluster using an evaluation value indicating a degree of preference of the user with a weight for each of the layers in accordance with the preference value.
15. The information processing apparatus according to claim 12, further comprising:
setting means for setting a keyword for the first clusters into which the content pieces are classified by the content specifying means; and
generating means for generating a reason statement indicating the reason for providing the content piece using the keyword set by the setting means,
wherein the providing means further provides the reason statement.
16. The information processing apparatus according to claim 12, wherein:
the content pieces are music pieces; and
the items of metadata include at least one of tempo, beat, and rhythm of the music pieces.
17. The information processing apparatus according to claim 12, wherein the items of metadata include review text for the corresponding content pieces.
18. The information processing apparatus according to claim 12, further comprising metadata classifying means for classifying each of the items of metadata with respect to the plurality of content pieces into any of a plurality of second clusters, and allocating the layers to the second clusters,
wherein the content classifying means classifies each of the content pieces into any of the plurality of first clusters for each of the allocated layers.
19. The information processing apparatus according to claim 12, wherein the specifying means further specifies a content piece using a similarity level indicating a degree of similarity to a similarity-reference content piece from among content pieces corresponding to a first cluster among the first clusters into which the similarity-reference content piece is classified.
20. The information processing apparatus according to claim 19, wherein the specifying means specifies a content piece using the similarity level that is weighted by a weight for each of the layers in accordance with a belonging weight of the similarity-reference content piece for the first cluster.
21. An information processing method for an information processing apparatus for selecting a content piece satisfying a predetermined condition from a content group, the information processing method comprising:
a classifying step of classifying each of content pieces constituting the content group into any of a plurality of clusters in each of layers associated with items of metadata of the content pieces according to classification of the metadata by a distance measurement of the metadata that is defined for each of the layers;
a holding step of holding a database indicating correspondences between the content pieces and the clusters in the layers into which the content pieces are classified;
a specifying step of specifying a cluster corresponding to the predetermined condition for each of the layers from among the clusters and specifying a content piece corresponding to the specified cluster from among the content pieces; and
a providing step of providing the specified content piece.
22. A program for selecting a content piece satisfying a predetermined condition from a content group, the program causing a computer to execute a process comprising:
a classifying step classifying each of content pieces constituting the content group into any of a plurality of clusters in each of layers associated with items of metadata of the content pieces according to classification of the metadata by a distance measurement of the metadata that is defined for each of the layers;
a holding step of holding a database indicating correspondences between the content pieces and the clusters in the layers into which the content pieces are classified;
a specifying step of specifying a cluster corresponding to the predetermined condition for each of the layers from among the clusters and specifying a content piece corresponding to the specified cluster from among the content pieces; and
a providing step of providing the specified content piece.
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 scope for a firearm, comprising:
a scope assembly which comprises:
a tubular scope body having an objective end and an opposed sight end to define a scope axis;
a lens module comprising an objective lens and an eyepiece lens supported at said objective end and said sight end of said scope body respectively for generating a scope reticle; and
an attachment base extended from a bottom side of said scope body for detachably mounting said scope body on said firearm to parallelly align said scope axis with a barrel axis of said firearm; and
head lighting arrangement which comprises a plurality of illumination elements formed at a rim of said objective end of said scope body for generating navigation light at a direction aligned with said scope axis of said scope body.
2. The scope, as recited in claim 1, wherein said scope body comprises a lens housing formed at said objective end to house said illumination elements in a circular configuration and to support a protection lens of said lens module coaxially within said illumination elements.
3. The scope, as recited in claim 2, wherein said lens housing comprises an outer ring and an inner ring coaxially supported within said outer ring, wherein said illumination elements are spacedly received between said outer and inner rings and said protection lens is supported within said inner ring at a position in front of said objective lens.
4. The scope, as recited in claim 2, wherein said head lighting arrangement further comprises a ring shaped circuit board, wherein said illumination elements are spacedly mounted on said circuit board to be supported in said lens housing.
5. The scope, as recited in claim 3, wherein said head lighting arrangement further comprises a ring shaped circuit board, wherein said illumination elements are spacedly mounted on said circuit board to be supported in said lens housing.
6. The scope, as recited in claim 3, wherein said scope assembly further comprises a ring shaped front rim cover attached to said outer and inner rings, wherein said front rim cover has a center lens window aligned with said protection lens and a plurality of light windows aligned with said illumination elements respectively.
7. The scope, as recited in claim 5, wherein said scope assembly further comprises a ring shaped front rim cover attached to said outer and inner rings, wherein said front rim cover has a center lens window aligned with said protection lens and a plurality of light windows aligned with said illumination elements respectively.
8. The scope, as recited in claim 1, further comprising an integrated control module provided at said attachment base to operatively link with a scope luminous element of said scope assembly and said illumination elements of said head lighting arrangement.
9. The scope, as recited in claim 3, further comprising an integrated control module provided at said attachment base to operatively link with a scope luminous element of said scope assembly and said illumination elements of said head lighting arrangement.
10. The scope, as recited in claim 7, further comprising an integrated control module provided at said attachment base to operatively link with a scope luminous element of said scope assembly and said illumination elements of said head lighting arrangement.
11. The scope, as recited in claim 8, wherein said integrated control module comprises a power source compartment formed at a sidewall of said attachment base for receiving a power supply to operatively link with said scope luminous element and said illumination elements, and a control panel provided at said sidewall of said attachment base for adjustably controlling a scope reticle illumination, for adjustably controlling a brightness level of said navigation light, and for selecting colors of said navigation light.
12. The scope, as recited in claim 9, wherein said integrated control module comprises a power source compartment formed at a sidewall of said attachment base for receiving a power supply to operatively link with said scope luminous element and said illumination elements, and a control panel provided at said sidewall of said attachment base for adjustably controlling a scope reticle illumination, for adjustably controlling a brightness level of said navigation light, and for selecting colors of said navigation light.
13. The scope, as recited in claim 10, wherein said integrated control module comprises a power source compartment formed at a sidewall of said attachment base for receiving a power supply to operatively link with said scope luminous element and said illumination elements, and a control panel provided at said sidewall of said attachment base for adjustably controlling a scope reticle illumination, for adjustably controlling a brightness level of said navigation light, and for selecting colors of said navigation light.
14. The scope, as recited in claim 1, wherein said scope assembly further comprises an elevation adjustment module formed at said attachment base at a bottom of said scope body for adjusting said scope reticle.
15. The scope, as recited in claim 3, wherein said scope assembly further comprises an elevation adjustment module formed at said attachment base at a bottom of said scope body for adjusting said scope reticle.
16. The scope, as recited in claim 13, wherein said scope assembly further comprises an elevation adjustment module formed at said attachment base at a bottom of said scope body for adjusting said scope reticle.
17. The scope, as recited in claim 1, wherein said illumination elements are light diodes.
18. The scope, as recited in claim 16, wherein said illumination elements are light diodes.
19. The scope, as recited in claim 1, wherein said scope assembly further comprises a back-up iron sight integrally formed on a top side of said scope body.
20. The scope, as recited in claim 18, wherein said scope assembly further comprises a back-up iron sight integrally formed on a top side of said scope body.