公开(公告)号：WO2021220187A1

公开(公告)日：2021-11-04

申请号：PCT/IB2021/053524

申请日：2021-04-28

Applicant: POLITECNICO DI MILANO

Inventor： WESTERDUIN, Ewoud Thomas Johannes ,  ARQUILLA, Venanzio

IPC: A62B18/00

Abstract: A ventilation device is disclosed for a filter mask engageable with the outer face of the cup of the filter mask. The device comprises: an inlet port which removably engages an opening of the cup of the mask; an outlet port in fluid communication with the inlet port; an exhalation valve arranged between the inlet port and the outlet port; an extraction fan arranged between the inlet port and the exhalation valve; a sensor arranged at the inlet port to detect the value of a physical quantity; a command and control unit in signal communication with the sensor and with the extraction fan. The command and control unit activates the extraction fan when the value of the physical quantity detected by the sensor exceeds a predefined threshold value.

公开(公告)号：WO2020260571A1

公开(公告)日：2020-12-30

申请号：PCT/EP2020/068007

申请日：2020-06-26

Applicant: TELECOM ITALIA S.P.A.

Inventor： COCIGLIO, Mauro

IPC: H04L12/26 ,  H04L12/801

Abstract: It is disclosed a method for enabling a round-trip packet loss measurement in a packet-switched communication network wherein a first node and a second node exchange packets comprising a packet loss field PLF settable to an idle value or one or more measurement values. The first node performs a generation step whereby first packets having their PLF set to a measurement value are transmitted to the second node. For each received first packet, the second node transmits back a second packet having its PLF set to a measurement value. The first node then performs a reflection step whereby, for each received second packet, it transmits to the second node a respective third packet having its PLF set to a measurement value. The time T lapsing between start of the generation step and start of the reflection step has a predefined and substantially constant duration T.

公开(公告)号：WO2020114971A1

公开(公告)日：2020-06-11

申请号：PCT/EP2019/083318

申请日：2019-12-02

Applicant: TELECOM ITALIA S.P.A.

Inventor： COCIGLIO, Mauro ,  FIOCCOLA, Giuseppe

IPC: H04L1/20 ,  H04L12/26 ,  H04J13/14

Abstract: It is disclosed a method for performing a performance measurement in a communication network. Each measurement point in the network identifies packets of a multipoint packet flow and selects therefrom a number of samples, based on the value of a sampling signature calculated by applying a hash function to a bit mask in each identified packet. For each sample, a performance parameter and the packet's content are provided to a management server. The management server identifies a cluster of measurement points such that each identified packet of the multipoint packet flow received by a cluster's input measurement point is also received at a cluster's output measurement point. Amongst the performance parameters provided by the cluster's measurement points, the performance parameters relating to samples belonging to a certain packet sub-flow are identified, based on the packet's content. Then, a performance measurement is performed on the packet sub-flow.

公开(公告)号：WO2019175908A1

公开(公告)日：2019-09-19

申请号：PCT/IT2018/000036

申请日：2018-03-16

Applicant: PRYSMIAN S.p.A.

Inventor： ABBIATI, Fabio

IPC: G02B6/44

Abstract: It is disclosed an optical box for installing an optical access network. The optical box comprises an outer casing comprising a first fixing member for fixing the outer casing to a distribution cable of the optical access network at a mid-span position thereof and two plates detachable from the outer casing. The detachable plates are configured to be completely housed within the outer casing side by side on a same plane parallel to a bottom of the outer casing. Each one of the plates comprises a second fixing member for fixing the plate to an end of a respective drop element of the optical access network. Preferably, the two plates are configured to be aligned along a longitudinal direction of the distribution cable, when the two plates are completely housed side by side within the outer casing and when the outer casing is fixed to the distribution cable.

公开(公告)号：WO2018050215A1

公开(公告)日：2018-03-22

申请号：PCT/EP2016/071644

申请日：2016-09-14

Applicant: TELECOM ITALIA S.P.A.

Inventor： BURGIO, Francesco ,  CASTALDELLI, Luca Maria ,  FRANCESCHINI, Angelo

IPC: H04L12/26

Abstract: It is disclosed a method for performance measurement in packet switched communication networks. The method provides for generating a flow of artificial packets having predefined packets lengths, which is then aggregated to the packet flow to be measured by an aggregator. The artificial packets are configured to follow the packet flow to be measured, starting from the point where aggregation is performed. Two measurement points are then provided after the aggregator, which identify the artificial packets based on their packet lengths and provide respective raw performance measurements indicative of the actual positions of the artificial packets in the aggregated packet flow. The raw performance measurements are then used for providing the performance measurements. Since the artificial packets are identified based on their packet lengths, no inspection of the packets' content is needed for identification purposes. The artificial packets may therefore be identified even if their content is uninspectable.

Abstract translation: 公开了一种用于分组交换通信网络中的性能测量的方法。 该方法提供用于生成具有预定义分组长度的人造分组流，然后该聚合到分组流以由聚合器测量。 仿真分组被配置为跟随要被测量的分组流，从聚合被执行的点开始。 然后在聚合器之后提供两个测量点，聚合器基于其分组长度来识别人造分组，并且提供指示聚集分组流中的人造分组的实际位置的相应原始性能测量。 然后使用原始性能测量结果来提供性能测量结果。 由于人造包是基于其包长来识别的，因此不需要检查包的内容用于识别目的。 因此，即使其内容是不可检查的，也可以识别人造包。

公开(公告)号：WO2017114547A1

公开(公告)日：2017-07-06

申请号：PCT/EP2015/081278

申请日：2015-12-28

Applicant: TELECOM ITALIA S.P.A.

Inventor： BOREAN, Claudio ,  CASTROGIOVANNI, Pino ,  GRASSO, Ennio ,  MANA, Dario

IPC: H04L12/24 ,  H04L29/06

CPC classification number: H04L41/0896 ,  H04L69/24

Abstract: It is disclosed a method for sharing network resources made accessible by several access gateways (AG). An AG (requester) sends a resource request to neighbouring AGs (potential helpers). Each potential helper decides whether to cooperate with the requester based on a reputation score calculated by the potential helper for the requester. The reputation score calculated by each potential helper for the requester is indicative of the requester's behaviour in response to past resource requests received from that potential helper. If the potential helper decides to cooperate, it sends a resource offer to the requester. The requester then selects its helper as the potential helper which sent the best offer, and sets up a resource sharing session with the helper. At the end of the session, the requester updates the reputations scores of helper and potential helpers based on the disposition to cooperate and reliability they exhibited.

Abstract translation: 公开了一种用于共享可由多个接入网关（AG）访问的网络资源的方法。 AG（请求者）向相邻的AG（潜在帮助者）发送资源请求。 每个潜在帮助者根据潜在帮助者为请求者计算的信誉分数来决定是否与请求者合作。 由每个潜在帮助者为请求者计算的信誉分数指示请求者的行为以响应从该潜在帮助者收到的过去资源请求。 如果潜在帮手决定合作，它会向请求者发送资源报价。 然后请求者选择其助手作为发送最佳报价的潜在帮助者，并与帮助者建立资源共享会话。 在会议结束时，请求者根据他们展示的合作意愿和可靠性更新助手和潜在助手的声誉分数。

公开(公告)号：WO2015014385A1

公开(公告)日：2015-02-05

申请号：PCT/EP2013/065930

申请日：2013-07-29

Applicant: PRYSMIAN S.P.A.

Inventor： LANG, Ian Dewi ,  ROBERTS, Paul John ,  DAVIES, Martin Vincent ,  SUTEHALL, Ralph

IPC: G02B6/44

CPC classification number: G02B6/4495 ,  G02B6/4413 ,  G02B6/447 ,  G02B6/4482

Abstract: It is disclosed an optical cable (1, 2, 3, 4) comprising an optical core (100, 200, 300, 400) and a sheath (101, 201, 301, 401) enclosing the optical core (100, 200, 300, 400). The optical core (100, 200, 300, 400) comprises a number of optical units (110, 210, 310, 410) having respective colors and being wound about a longitudinal axis of the cable (1, 2, 3, 4). The sheath (101, 201, 301, 401) comprises at least one non opaque longitudinal section (106, 206, 306, 406) through which a sequence of colors of the optical units (110, 210, 310, 410) is visible from outside the cable (1, 2, 3, 4). The color sequence acts as an identifier for the cable (1, 2, 3, 4). The cable (1, 2, 3, 4) may therefore be easily identified (e.g. amongst other cables laid down within the same duct) by a simple visual inspection of the cable's inner structure through the non opaque section(s) (106, 206, 306, 406) of its external sheath (101, 201, 301, 401).

Abstract translation: 公开了一种包括光学芯（100,200,300,400）和包围光学芯（100,200,300）的护套（101,201,301,401）的光缆（1,2,3,4） ，400）。 光学芯（100,200,300,400）包括多个具有相应颜色的光学单元（110,210,310,410），并围绕电缆（1,2,3,4）的纵向轴线缠绕。 所述护套（101,201,301,401）包括至少一个不透明的纵向部分（106,206,306,406），所述光学单元（110,210,310,410）的一系列颜色可通过所述纵向部分从 电缆外（1,2,3,4）。 颜色序列作为电缆的标识符（1,2,3,4）。 因此，可以通过简单的目视检查电缆的内部结构，通过非不透明部分（106,206）来容易地识别电缆（1,2,3）和（例如，在其它电缆中放置在相同的管道内） ，306,306），其外护套（101,201,301,401）。

公开(公告)号：WO2014154279A1

公开(公告)日：2014-10-02

申请号：PCT/EP2013/056681

申请日：2013-03-28

Applicant: UNIVERSITA' DEGLI STUDI DI PAVIA

Inventor： TOMASELLI, Alessandra ,  TARTARA, Luca ,  HASANI, Elton

IPC: G02B21/00

CPC classification number: G02B21/16 ,  G02B21/0032 ,  G02B21/025 ,  G02B27/0966 ,  G02B2207/114 ,  G02F1/3526

Abstract: It is disclosed a two-photon excited fluorescence microscope comprising a laser source suitable for emitting a light beam and an optical arrangement suitable for receiving the light beam from the laser source. The optical arrangement is configured for shaping the light beam so that, at the output of the microscope, the light beam is substantially collimated in a first transverse direction perpendicular to the propagation direction of the light beam at the microscope output and is focused in a second transverse direction perpendicular to the first transverse direction and to the propagation direction, thereby forming a line parallel to the first transverse direction.

Abstract translation: 公开了一种双光子激发荧光显微镜，其包括适于发射光束的激光源和适于接收来自激光源的光束的光学装置。 光学布置被配置为使光束成形，使得在显微镜的输出处，光束在垂直于显微镜输出处的光束的传播方向的第一横向方向上基本准直，并且在第二 横向方向垂直于第一横向和传播方向，从而形成平行于第一横向的线。

公开(公告)号：WO2014090331A1

公开(公告)日：2014-06-19

申请号：PCT/EP2012/075550

申请日：2012-12-14

Applicant: TELECOM ITALIA S.P.A.

Inventor： ELIA, Gabriele ,  MARCHETTI, Marco ,  MARTINI, Giovanni

IPC: G06Q30/02

CPC classification number: G06Q30/0267 ,  G06F17/30876 ,  G06Q30/0258 ,  G06Q30/0269

Abstract: Method for providing advertisement to a user of a communication network. An advertisement database stores an association between the identifier of a further user and at least one visual advertisement associated to and selected by the further user. When a communication session is set up in the communication network between the user and the further user, an advertisement manager uses the identifier of the further user for retrieving from the advertisement database a visual advertisement selected amongst the visual advertisements associated to the further user. The advertisement manager then transmits the selected visual advertisement to the user for displaying it on a display of the user device.

Abstract translation: 用于向通信网络的用户提供广告的方法。 广告数据库存储另外用户的标识符与由另外的用户相关联并由另外的用户选择的至少一个视觉广告之间的关联。 当在用户和另外的用户之间的通信网络中建立通信会话时，广告管理器使用另外的用户的标识符来从广告数据库中检索在与另外的用户相关联的视觉广告中选择的视觉广告。 然后，广告管理器将所选择的可视广告发送给用户，以将其显示在用户设备的显示器上。

公开(公告)号：WO2014015902A1

公开(公告)日：2014-01-30

申请号：PCT/EP2012/064578

申请日：2012-07-25

Applicant: PRYSMIAN S.P.A. ,  ABBIATI, Fabio ,  LE DISSEZ, Arnaud ,  GRIFFITHS, Ian

Inventor： ABBIATI, Fabio ,  LE DISSEZ, Arnaud ,  GRIFFITHS, Ian

IPC: G02B6/44

CPC classification number: G02B6/4446

Abstract: It is disclosed a method for installing a drop cable (2) for an optical access network. The drop cable has a first end (2a), a second end (2b) and a minimum bending radius. The drop cable comprises at least one optical fiber (21) and one or more layers (22, 23, 24) surrounding the optical fiber(s). The method comprises the following steps: laying the drop cable so that its first end is brought to a first position at user's premises and its second end is brought to a second position close to a riser cable; collecting an extra-length of the drop cable at a third position intermediate between the first and second positions; removing at least one of the layers surrounding the optical fiber(s) from a portion (26) of the drop cable extra-length; and coiling the drop cable extra-length bared portion with a bending radius smaller than the minimum bending radius of the drop cable as a whole.

Abstract translation: 公开了一种用于安装用于光接入网络的分接电缆（2）的方法。 分接电缆具有第一端（2a），第二端（2b）和最小弯曲半径。 分接电缆包括至少一个光纤（21）和围绕光纤的一个或多个层（22,23,24）。 该方法包括以下步骤：铺放液滴电缆使得其第一端被带到使用者住处的第一位置，并且其第二端被带到靠近立管电缆的第二位置; 在第一位置和第二位置之间的第三位置收集额外长度的液滴电缆; 从所述分支电缆额外长度的部分（26）去除围绕所述光纤的至少一个层; 并且以大于整个滴落电缆的最小弯曲半径的弯曲半径卷绕掉落电缆超长度裸露部分。