3m Innovative Properties Company

Shanghai Wuqi Microelectronics Co., Ltd.

Corning Research & Development Corporation

Zhiyong Xu

Pierre Bonvallat

Da Li Liu

Junsheng Zhou

Bin Yu

Bin Lu

John Allen Wheatley

Guanglei Du

Chao Yang

Ping Wang

Jingfei Chen

Yingyu Wang

Peiyou Xiong

Jingwen Zhong

Jian Wei

Yuan Zhao

Ren Wei

Yingliang Peng

Yifeng Cui

Min Lin

Ahmed M Ghazy

Yihang Lv

Ju Le Sun

Xian Wu

Zhijie Tang

Peiyou Xion

The present invention relates to a circuit board to which a 3D formed electromagnetic shielding film is attached, a 3D formable electromagnetic shielding film, a 3D formed electromagnetic shielding film, and a method for attaching an electromagnetic shielding film to a circuit board. The circuit board includes an electronic component. The 3D formed electromagnetic shielding film includes a molding layer, a shielding layer, and an adhesive film. The molding layer and the adhesive film are laminated. The shielding layer is a conductive non-woven layer embedded in the adhesive film. A ratio of a surface area Sof the electromagnetic shielding film after forming with an upper surface area of the electronic component deducted to a surface area Sthereof before forming with the upper surface area of the electronic component deducted is 1.5 to 17. The electromagnetic shielding film is attached to the electronic component of a system-in-package module by means of a 3D formation process, and has good electromagnetic shielding performance. The circuit board to which the 3D formed electromagnetic shielding film is attached is suitable for a wave soldering process or a reflow soldering process in a subsequent manufacturing procedure, and the reflow soldering process does not cause any damage to the electromagnetic shielding film.

Circuit board to which 3D formed electromagnetic shielding film is attached, 3D formable electromagnetic shielding film, and 3D formed electromagnetic shielding film

A wireless data transmission method includes sending by an external device a data packet; receiving by a primary device and a secondary device the data packet sent by the external device. When the secondary device does not receive the data packet sent by the external device correctly, sending by the secondary device a feedback signal to the primary device. When the secondary device receives the data packet sent by the external device correctly, not sending the feedback signal. The method further includes detecting by the primary device if the secondary device has sent the feedback signal. When the primary device receives the data packet successfully and detects that the secondary device has not sent the feedback signal, sending by the primary device an ACK signal to the external device; otherwise, sending by the primary device a NACK signal to the external device.

Wireless data transmission system and method

A rapid Bluetooth networking method is applied to a Bluetooth communication system, the Bluetooth communication system includes Bluetooth earphones and a terminal, and the Bluetooth earphones include a master earphone and a slave earphone. The rapid Bluetooth networking method includes: when the master earphone is started and in an idle state, carrying out frequency hopping to a preset channel; carrying out, by the master earphone, carrier detection on a preset channel to detect whether the preset channel is idle, and if yes, transmitting an identifier (ID) packet to the slave earphone, an initial frequency of the slave earphone being the preset channel; and automatically entering, under the condition that the slave earphone is started and receives the ID packet, a subsequent process that Slave receives the ID packet transmitted by Master in a Page process, the slave earphone being the Slave, and the master earphone being the Master.

Rapid Bluetooth networking method and system and Bluetooth earphones

A system includes a first node, a second node, and a third node, wherein the first node establishes a wireless communication link with the second node to perform wireless communication, and forwards connection information of the wireless communication to the third node; and the third node receives, by listening on the wireless communication link based on the connection information, transmission data sent by the second node to the first node. If an error occurs when the third node receives the transmission data sent by the second node to the first node, the third node interferes with the first node's reception of the transmission data sent by the second node, so that an error is caused when the first node receives the transmission data sent by the second node, and the second node is triggered to perform retransmission.

Wireless communication system and wireless communication method

An example article may include an optical filter and a multilayer stack adjacent the optical filter. The multilayer stack may include a plurality of layers. Each respective layer of the plurality layers may define a respective window edge of a plurality of window edges. The plurality of window edges may define an optical window configured to transmit light through the optical filter. At least a first respective window edge of the plurality of window edges may be stepped relative to at least a second respective window edge of the plurality of window edges.

Device optical window camouflage

The present invention relates to a fiber optic telecommunication cabinet for use in fiber optic telecommunication networks. The fiber optic telecommunication cabinet comprises a base and a housing. The base has a plurality of ports passing through the base to allow passage telecommunication cables into the fiber optic cabinet. The fiber optic telecommunication cabinet further includes an optical fiber termination block attached to the base. The optical fiber termination block has a plurality of optical modules supported by the mounting frame, wherein the optical modules may be rotated in a plane perpendicular to the longitudinal direction of the fiber optic telecommunication cabinet from a first storage position to a second accessible position.

Fiber optic cabinet

The present invention relates to a fiber distribution hub. The fiber distribution hub comprises a base case comprising at least one port portion for introducing an optical cable, wherein the optical cable includes a first fiber; a splitter case releasably attached to the base case; a splice tray rotatably hinged to the splitter case; and a cover engagable with the base case to enclose the splitter case and the splice tray. The first fiber is connected to a second fiber in the splice tray, and the second fiber is connected with a splitter in the splitter case to separate the second fiber into a plurality of separate third fibers. Thus, the invention provides a compact and modular fiber distribution hub. In addition, the fiber distribution hub can join optical fibers by mechanical splices, fusion splices and fiber optic connectors in a single unit.

High density fiber distribution hub

Disclosed is an embedded communication enclosure for housing and supporting communication devices and communication cables, comprising: an enclosure body; a cable connecting member, provided within said enclosure body to connect communication cables, where an input cable from the exterior of the enclosure body is connected to a plurality of distribution cables to be brought out of the enclosure body; and a first door connected with the enclosure body, for opening and closing the front of the enclosure body, said first door comprising a second door embedded therein to provide access to the cable connecting member; wherein said cable connecting member is arranged to correspond to said second door in such a manner that said cable connecting member is exposed to outside when said second door is opened. With the embedded communication enclosure, a two-stage stage operating interface is achieved, so that communication devices and cables housed in the embedded communication enclosure will not be undesirably influenced or accessed during frequently changing and maintaining terminal jumpers.

Embedded communication enclosure

The present invention discloses a splice holder, which is used for holding at least one splicing sleeve (), each of the splicing sleeves () is used for coupling two optical fibers. The splice holder comprises: a body; a splice channel () provided on the body; and an elastic device () in each splice channel, wherein the elastic device holds the splicing sleeve () elastically in the splice channel. The present invention also includes a communication socket having a splice holder mounted therein. By the splice holder of present invention, optical fiber connection points can be accommodated in a communication socket, so that electrical cables and optical fibers in the communication socket may be managed in an orderly way. Furthermore, inclusion of the inventive splice holder ensures than a minimum bending radius of optical fiber can be maintained when the optical fiber is stored in the communication socket.

Splice holder for communication socket

A communication socket comprises a housing including a base portion having a bottom wall and a plurality of sidewalls and a cover portion. The base portion and the cover portion are detachably engaged with each other. The base portion includes a plurality of knock-off holes for inserting an optical fiber at different positions in the sidewall and/or a plurality of fiber entries for inserting a fiber through the bottom wall. The fiber-connector-mounting portion extends from the base. Each of the fiber-connector-mounting portion includes a spacer for maintaining a fiber connector at a distance away from the bottom wall, and a space for inserting the fiber between the fiber connector and the bottom wall. The volume of the communication socket can be minimized, the integration thereof can be improved, the fiber can enter the communication socket in all directions while the fiber's bend radius is satisfied, and the management on the fiber and cable in the communication socket is effective.

Communication socket

A re-enterable enclosure for a cable splice includes a first cover member and a second cover member configured for engagement with each other, and movable between an open position and a closed position. The first and second cover members form a cavity for enclosing the cable splice when the cover members are in the closed position. Internal walls in at least one of the first and second cover members are configured to define a sealant containment space that at least partially surrounds the cavity. At least one latch is configured to maintain the first and second cover members in the closed position, the at least one latch configured to exert a compression force along a line extending through the sealant containment space.

Growing community of inventors

Shanghai, China

Zhiyong Xu