Abstract: Stop member for slide fastener includes: a main body having first and second surfaces; a first superficial region formed at a side of the first surface of the main body; and a slit or interface interposed between the first and second surfaces of the main body. The first superficial region extends over and covers the slit or interface, and has a thickness defined between the first surface and an end of the slit or interface at the side of the first surface.

Abstract: A communication apparatus in the present disclosure comprises an AID generator, a Trigger frame generator, and a wireless transmitter/receiver. When a Trigger Type in a trigger frame is an RA trigger, the AID generator (103) generates, as information for an AID12 subfield, information that is different from an AID. The Trigger frame generator (104) generates a RA variant Trigger frame when the Trigger Type in the trigger frame is an RA trigger, and sets, in the AID12 subfield included in the RA variant Trigger frame, the information output from the AID generator (103). The wireless transmitter/receiver (106) transmits the Trigger frame, generated by the Trigger frame generator (104), to a terminal (200).

Abstract: An imaging apparatus includes a first reflection optical system and a second reflection optical system having mutually different optical axes, each of the first and second reflection optical systems includes a plurality of reflecting surfaces, a first imaging portion configured to receive an imaging light reflected by the first reflection optical system, a second imaging portion configured to receive an imaging light reflected by the second reflection optical system, a first member, a second member, and a frame. A part of the plurality of reflecting surfaces of the first reflection optical system are reflecting surfaces provided on the frame. Among the plurality of reflecting surfaces of the first reflection optical system, a final-stage reflecting surface configured to reflect the imaging light toward the first imaging portion is a first reflecting surface formed on a surface of the first member.

Abstract: A rotatable polygon mirror molded with a resin includes a plurality of reflecting surfaces provided in parallel to a rotational axis direction, a surface perpendicular to the rotational axis direction; a plurality of gate portions provided on the surface and a recess-projection on the surface. The recess-projection has at least one shape of a recess shape recessed in the rotational axis from the and a projection shape projected from the surface as viewed in a direction perpendicular to the rotational axis direction. The recess-projection is provided in a virtual straight line with equal distances from two of the adjacent gate portions with respect to a rotational direction of the rotatable polygon mirror and connecting a rotation center of the rotatable polygon mirror and a boundary of two of the adjacent reflecting surfaces with respect to the rotational direction.

Abstract: A free-space optical communication control system includes at least one processor. The at least one processor carries out: a first detection process of detecting a change in a connection relationship between a first free-space optical communication apparatus and a second free-space optical communication apparatus adjacent to the first free-space optical communication apparatus; a second detection process of detecting a transition of work stages in accordance with the change in the connection relationship detected and plan information indicating a connection relationship between the first free-space optical communication apparatus and the second free-space optical communication apparatus in each of the work stages; and a connection control process of controlling, according to the transition of the work stages detected, which connection destination is connected to the first free-space optical communication apparatus.

Abstract: A terminal control system causes a wireless terminal to perform a switching process of switching a connection destination of the wireless terminal in accordance with the wireless terminal being located at such a position as to be capable of establishing connection both with a wireless base station and with a free-space optical communication apparatus, acquires weather information regarding an area in which the wireless terminal is located, and causes, in accordance with the weather information, the wireless terminal to stop the switching process of switching the connection destination of the wireless terminal from the wireless base station to the free-space optical communication apparatus.

Abstract: A free space optical communication device includes: a plurality of light transmitting/receiving sections; and at least one processor configured to execute: a communication control process of controlling communication which is to be carried out via the plurality of light transmitting/receiving sections, in the communication control process, the at least one processor causing two or more light transmitting/receiving sections of the plurality of light transmitting/receiving sections to transmit same pieces of information in parallel according to respective different communication schemes.

Abstract: A management system for managing an upper free-space optical communication apparatus and a lower free-space optical communication apparatus that carry out free-space optical communication in an up-and-down direction is provided, the management system including at least one processor, the at least one processor carrying out: an acquisition process of acquiring a first index that indicates a quality of a first upward light signal received by the upper free-space optical communication apparatus; and a determination process of determining a possibility of contamination of a light sending and receiving window of the lower free-space optical communication apparatus in accordance with the first index, the lower free-space optical communication apparatus being configured to send and receive a light signal of the free-space optical communication through the light sending and receiving window.

Abstract: A communication control system includes at least one processor executing: a main communication process of carrying out communication with one or more targets through an optical fiber line; a specifying process of specifying, from among the one or more targets, a free-space optical communication target based on communication statuses in the main communication process; a sub communication process of carrying out communication with the free-space optical communication target via a free-space optical communication apparatus(es); and a selecting process of selecting, according to at least one of (i) a capacity of the communication with the free-space optical communication target in the main communication process, (ii) the communication statuses of the free-space optical communication apparatuses, and (iii) processing capacities of the free-space optical communication apparatuses, a path for free-space optical communication with the free-space optical communication target in the sub communication process.

Abstract: A communication system (1) includes a plurality of communication apparatuses (10) and a control apparatus (20), the control apparatus (20) including a control unit (21), the control unit (21) including: a management unit (22) that manages the number of established connections for each of the plurality of communication apparatuses (10); and an instruction unit (23) that instructs, in a case where at least one connection included in the established connections has been broken, the at least one communication apparatus (10) involved in the at least one broken connection to reestablish the at least one broken connection.

Abstract: A free-space optical communication control system includes at least one processor. The at least one processor carries out: an interruption estimation process of estimating an interruption of free-space optical communication over a free-space optical communication network in accordance with movement route information that indicates a movement route of a mobile object movable within a communication area of the free-space optical communication network; and a path change process of changing a free-space optical communication path in accordance with an estimation result of the interruption estimation process.

Abstract: A communication system (1) includes a plurality of communication apparatuses (10) and a control apparatus (20), the plurality of communication apparatuses (10) each including: a communication means that is configured to be capable of transmitting and receiving directional communication media; a specification means that specifies at least one connection destination candidate by carrying out scanning with use of the communication means; and a connection establishment means that establishes connection with the at least one connection destination candidate specified by the specification means, and the control apparatus (20) including a control means that controls a meshed network composed of the plurality of communication apparatuses (10) connecting to each other.

Abstract: A free space optical communication device includes: a plurality of light transmitting/receiving sections; and at least one processor configured to execute: a communication control process of controlling communication which is to be carried out via the plurality of light transmitting/receiving sections, in the communication control process, the at least one processor (a) determining a required communication capacity for the communication and (b) controlling, on the basis of the required communication capacity, the number of light transmitting/receiving sections to be used for the communication.

Abstract: A communication system (1) according to an example aspect of the present invention includes a plurality of communication apparatuses (10) and a control apparatus (20), the control apparatus (20) including a control unit (21), the control unit (21) including: an acquisition unit (22) that acquires related information related to the communication apparatuses (10) and reference information; and an accumulation unit (23) that calculates correlation between the related information and the reference information, and accumulates correlation information indicative of the calculated correlation.

Abstract: A communication system (1) includes a plurality of communication apparatuses (10) and a control apparatus (20), the control apparatus (20) including a control unit (21), the control unit (21) including a management unit (21a) that manages, for each of the plurality of communication apparatuses (10), the number of connections that are capable of being established, and the number of established connections.

Abstract: Provided is a radio communication device which can prevent interference between SRS and PUCCH when the PUCCH transmission bandwidth fluctuates and suppress degradation of CQI estimation accuracy by the band where no SRS is transmitted. The device includes: an SRS code generation unit (201) which generates an SRS (Sounding Reference Signal) for measuring uplink line data channel quality; an SRS arrangement unit (202) which frequency-multiplexes the SRS on the SR transmission band and arranges it; and an SRS arrangement control unit (208) which controls SRS frequency multiplex so as to be uniform in frequency without modifying the bandwidth of one SRS multiplex unit in accordance with the fluctuation of the reference signal transmission bandwidth according to the SRS arrangement information transmitted from the base station and furthermore controls the transmission interval of the frequency-multiplexed SRS.

Abstract: A communication apparatus (10) includes: at least one communication means (11) that is configured to be capable of transmitting and receiving directional communication media; a specification means (12) that specifies at least one connection destination candidate by scanning with use of the at least one communication means; and a connection establishment means (13) that establishes connection with the at least one connection destination candidate specified by the specification means.

Abstract: A communication apparatus (20) according to an example aspect of the present invention includes: at least one communication means (21) that is configured to be capable of transmitting and receiving directional communication media; and a determination means (22) that determines at least one communication destination with which to communicate by the at least one communication means, in the case of determination of communication with a plurality of communication destinations, the determination means selecting the plurality of communication destinations so that an angle between the plurality of communication destinations as viewed from the communication apparatus is not less than a predetermined angle.

Abstract: A communication system (1) includes a plurality of communication apparatuses (10) and a control apparatus (20), the control apparatus (20) including a control unit (21) including: a related information acquisition unit (22) that acquires related information related to the communication apparatuses; a connection request acquisition unit (23) that acquires a connection request from a new terminal; a determination unit (24) that determines a communication apparatus which is to be connected to the new terminal; and an instruction unit (25) that instructs the determined communication apparatus to carry out scanning with respect to the new terminal.

Abstract: A polygon mirror includes a resin member, a first surface, a second surface facing the first surface, an inner surface joining the first and second surfaces to surround a through hole extending from the first to the second surface, and includes outer surfaces joining the first and second surfaces. A first segment between the first surface and the outer surfaces is defined as a first reference of a height in a direction from a second segment between the second surface and the outer surfaces to the first segment. The first surface includes a projection that forms the inner surface and projects from the first reference toward a side opposite to the second surface. The second segment is defined as a second reference of the height in the direction. The second surface includes a depressed portion distant from the outer surfaces and depressed from the second reference toward the first surface.