Abstract: An information processing apparatus including a processor that receives a selection from a user of a region, in a drawing in which elements are indicated by graphics, that contains the graphics, extracts from the drawing one or more first elements, indicated by the graphics, that are completely contained within the region for which the selection is received, extracts from the drawing one or more second elements, indicated by the graphics, that intersect a boundary of the region for which the selection is received, extracts a third element from the one or more second elements based on a positional relationship between the graphics indicating the one or more second elements and the boundary, and stores a set of elements including the one or more first elements and the third element in a storage as an element group selected by the user.

Abstract: The present invention provides an audiovisual access criterion updating method, for updating an audiovisual access criterion in an audiovisual access criterion managing device, the audiovisual access criterion managing device managing the audiovisual access criterion of a content signal, the audiovisual access criterion updating method includes: a step of receiving update information descriptive of update content of the audiovisual access criterion and identification information of the audiovisual access criterion managing device by an updating code generating system; a step of generating an updating code by the updating code generating system according to the update information and the identification information; a step of receiving the updating code by the audiovisual access criterion managing device; and a step of updating the audiovisual access criterion by the audiovisual access criterion managing device according to the updating code.

Abstract: A playback management device (3) is provided for use with a receiver (2) for receiving a content signal encoded by a key (Ks) updated in a specified update period and first control information (ECM) obtained by encoding information about the key (Ks) and a playable time (Tpre) for the encoded content signal. The playback management device (3) includes: an interface (31) for collecting the first control information (ECM) from the receiver; a first decoding portion (34) for decoding the first control information (ECM) and thereby restoring the key (Ks) and the playable time (Tpre) for the encoded content signal; and a control portion (35) for determining, according to the playable time (Tpre) for the encoded content signal and the update period (Tud) for the key (Ks), whether to output the key (Ks) to the receiver (2), and outputting the restored key (Ks) to the receiver (2) when determining to output.

Abstract: The present invention provides an audiovisual access criterion updating method, for updating an audiovisual access criterion in an audiovisual access criterion managing device, the audiovisual access criterion managing device managing the audiovisual access criterion of a content signal, the audiovisual access criterion updating method includes: a step of receiving update information descriptive of update content of the audiovisual access criterion and identification information of the audiovisual access criterion managing device by an updating code generating system; a step of generating an updating code by the updating code generating system according to the update information and the identification information; a step of receiving the updating code by the audiovisual access criterion managing device; and a step of updating the audiovisual access criterion by the audiovisual access criterion managing device according to the updating code.

Abstract: A playback management device (3) is provided for use with a receiver (2) for receiving a content signal encoded by a key (Ks) updated in a specified update period and first control information (ECM) obtained by encoding information about the key (Ks) and a playable time (Tpre) for the encoded content signal. The playback management device (3) includes: an interface (31) for collecting the first control information (ECM) from the receiver; a first decoding portion (34) for decoding the first control information (ECM) and thereby restoring the key (Ks) and the playable time (Tpre) for the encoded content signal; and a control portion (35) for determining, according to the playable time (Tpre) for the encoded content signal and the update period (Tud) for the key (Ks), whether to output the key (Ks) to the receiver (2), and outputting the restored key (Ks) to the receiver (2) when determining to output.

Abstract: The present invention provides a method for preparing a pyrochlore type oxide having a larger specific surface area, a polymer electrolyte fuel cell and a fuel cell system improved in power generation efficiency and capable of being produced more inexpensively, and a method for producing an electro catalyst for a fuel cell, which electro catalyst has a larger specific surface area, is relatively inexpensive, and has high electrode activity per unit mass. A method for preparing a pyrochlore type oxide represented by A2B2O7-Z wherein A and B represent a metal element, Z represents a number of 0 or more and 1 or less, A includes at least one selected from the group consisting of Pb, Sn, and Zn, and B includes at least one selected from the group consisting of Ru, W, Mo, Ir, Rh, Mn, Cr, and Re, wherein the pyrochlore type oxide is produced by a reaction of a halide or nitrate of A with an alkali salt of a metal acid of B.

Abstract: The present invention provides a method for preparing a pyrochlore type oxide having a larger specific surface area, a polymer electrolyte fuel cell and a fuel cell system improved in power generation efficiency and capable of being produced more inexpensively, and a method for producing an electro catalyst for a fuel cell, which electro catalyst has a larger specific surface area, is relatively inexpensive, and has high electrode activity per unit mass. A method for preparing a pyrochlore type oxide represented by A2B2O7-Z wherein A and B represent a metal element, Z represents a number of 0 or more and 1 or less, A includes at least one selected from the group consisting of Pb, Sn, and Zn, and B includes at least one selected from the group consisting of Ru, W, Mo, Ir, Rh, Mn, Cr, and Re, wherein the pyrochlore type oxide is produced by a reaction of a halide or nitrate of A with an alkali salt of a metal acid of B.