Abstract: A method of securing a home network system applied to an apartment building includes providing a home server connected to a network, a plurality of home network devices, a VPN server installed between the home server and the home network devices, and VPN gateways individually installed for the home network devices. The method also includes extracting an IP and a MAC address of a connected device using a local packet analyzer by means of VPN gateways. The method also includes detecting alteration of the IP or the MAC address of the connected device using a connection log table by means of the VPN gateways. The method also includes defining and blocking the connected device as an unauthorized device by means of a communication blocker of the VPN gateways when an alteration ratio of the IP or the MAC address of the connected device is a predetermined danger ratio or more.

Abstract: A sound-absorbing air duct for a vehicle includes a lower non-woven fabric and an upper non-woven fabric sandwiching wires therebetween; and a film made of a polyester resin having a low melting point and disposed on the upper non-woven fabric, wherein each of the lower and upper non-woven fabrics includes a mixture between a first polyester fiber containing a polyester resin having a melting point higher than 250° C. and a second polyester fiber containing a polyester resin having a low melting point and having a softening point of 100° C. to 150° C., wherein the second polyester fiber includes a polyester resin having a low melting point composed of: an acid component including terephthalic acid or an ester-forming derivative thereof; and a diol component including 2-methyl-1,3-propanediol, 2-methyl-1,3-pentanediol, and ethylene glycol.

Abstract: A method of installing a home network system applied to an apartment building composed of a plurality of unit spaces includes: providing a home server connected to a network, a plurality of home network devices installed for unit spaces, respectively, a VPN server installed between the home server and the home network devices, and VPN gateways individually installed for the home network devices between the home network devices and the VPN server, wherein the VPN gateways each include a first bridge terminal for communication with a corresponding home network device, a first intermediate communication terminal for communication with the VPN server, and an operation mode alteration detector, and the first bridge terminal includes a first end communication interface and a TAP interface; directly connecting the first end communication interface and the first intermediate communication terminal of the first bridge terminal until receiving a virtual private network start signal from the VPN server or the home serve

Abstract: A method of automatically configurating an IP of a VPN gateway in a home network system applied to an apartment building composed of a plurality of unit spaces includes: providing a home server connected to a network, a plurality of home network devices installed for unit spaces, respectively, a VPN server installed between the home server and the home network devices, and VPN gateways individually installed for the home network devices between the home network devices and the VPN server; acquiring an IP of an individually corresponding home network device using a local packet analyzer of the VPN gateway; and creating an IP of the VPN gateway using a network setting unit of the VPN gateway, wherein the network setting unit may make a portion of the IP of the VPN gateway be the same by referring to a portion of the IP of the individually corresponding home network device.

Abstract: A home network system that is applied to an apartment building composed of a plurality of unit spaces includes a home server connected to a network, a plurality of home network devices installed for the unit spaces, respectively, and a back bone connecting the homer server and the home network devices, and further includes a VPN server additionally installed between the home server and the home network devices and VPN gateways additionally individually installed for the home network devices between the home network devices and the back bone on the network, wherein the VPN gateway each a first may bridge terminal for communication with the home network device and a first intermediate communication terminal for communication with the VPN server and the VPN server includes a second bridge terminal for communication with the home server, a second intermediate communication terminal for communication with the corresponding VPN gateways, and a back bone virtual gateway configured to perform processing in priority t

Abstract: The present invention relates to a polyester resin for an adhesive strength-improved binder and a polyester fiber using the same, in which adhesive properties of the polyester resin for the adhesive strength-improved binder are not lowered at high temperatures since melt viscosity even at high temperatures of the polyester resin for the adhesive strength-improved binder, as a polyester resin for a binder, the polyester resin including terephthalic acid or an ester-forming derivative thereof as an acid component and including 2-methyl-1,3-propanediol, 2-methyl-1,3-pentanediol, and ethylene glycol as diol components, is not greatly lowered.

Abstract: A portable electronic device is provided.

Abstract: An electronic device including a waterproof structure is provided. The electronic device includes a housing that includes a first face, a second face that faces in a direction substantially opposite to the first face, and a side surface that at least partially encloses a space between the first face and the second face, a middle plate arranged between the first face and the second face inside the housing to be substantially parallel to the first face, extending from the side surface, and including at least one opening, a printed circuit board arranged between the middle plate and the second face, a display arranged between the middle plate and the first face, and including a face directed toward the second face, and a seal member configured to hermetically seal the at least one opening of the middle plate, and arranged between the face of the display and the middle plate.

Abstract: A portable electronic device is provided. The electronic device includes a transparent front glass cover including a planar portion that forms a front surface of the electronic device, a planar rear glass cover that forms a rear surface of the electronic device, a metal bezel that surrounds a space formed by the front glass cover and the rear glass cover, and a flexible display device that is embedded in the space and exposed through the front glass cover. The front cover includes a left bent portion and a right bent portion on the left and right of the planar portion at the center of the front cover.

Abstract: An example device includes a housing including a first surface facing a first direction and a second surface facing a second direction; a transparent cover formed on at least a portion of the first surface of the housing; a display disposed between the transparent cover and the second surface; a sensor disposed between the display and the second surface; and a control circuit, electrically connected to the sensor, for controlling the sensor, wherein the display can include: a first region including a plurality of pixels capable of displaying color; and a second region aligned on at least a portion of the sensor such that light acquired from the outside of the electronic device passes through the sensor.

Abstract: An example portable electronic device includes a front glass cover; a rear cover; a bezel surrounding a space defined by the front cover and the rear cover, the bezel including a portion including an opening; a display device built in the space; and a plate including a plane parallel to the front cover within the space. The example electronic device includes a key movably inserted in the opening; a support structure mounted on the plate or a portion of the bezel and including a hole through which the key passes; a dome button mounted on the support structure and arranged to face the first surface of the key and the hole so that the key can be pressed; and a waterproof structure including a flexible material.

Abstract: A wheel disc including a bolt hole for bolt fastening, includes a first region extending to have a predetermined width in a circumferential direction of the bolt hole and a second region, other than the first region, wherein the first region has an average tensile strength lower than that of the second region.

Abstract: An unmanned aerial comprises: a motor and a propeller assembly connected to the motor comprising: a first structure fixed to the motor, having a cylindrical wall defining an inner space, with a helical slit formed through the cylindrical wall; a second structure comprising a cylinder portion, a part of which is rotatably positioned in the inner space, and at least one protruding portion protruding from the outer surface of the cylinder portion to the outside of the cylindrical wall through the helical slit; and a propeller comprising a cylindrical hub engaging with the cylinder portion of the first structure, rotating blades extending from the cylindrical hub, and at least one rib extending from the cylindrical hub toward the motor, the propeller being configured such that at least a part of the rib detachably engages with the first structure by the at least one protruding portion of the second structure.

Abstract: According to various examples of the present invention, an electronic device can comprise: a housing including a first surface facing a first direction, a second surface facing a second direction opposite to the first direction, and a side surface surrounding at least a part of a space between the first surface and the second surface; a display device formed on at least one of the first surface and the second surface; an opening formed on at least one of the first surface, the second surface, and the side surface; a module mounted inside the housing not to be exposed; and a guide member disposed inside the housing between the module and configured to provide output of the module to outside through the opening. Additionally, the electronic device can be variously implemented according to examples.

Abstract: An electronic device including a waterproof structure is provided. The electronic device includes a housing that includes a first face, a second face that faces in a direction substantially opposite to the first face, and a side surface that at least partially encloses a space between the first face and the second face, a middle plate arranged between the first face and the second face inside the housing to be substantially parallel to the first face, extending from the side surface, and including at least one opening, a printed circuit board arranged between the middle plate and the second face, a display arranged between the middle plate and the first face, and including a face directed toward the second face, and a seal member configured to hermetically seal the at least one opening of the middle plate, and arranged between the face of the display and the middle plate.

Abstract: The present invention relates to a polyester resin for an adhesive strength-improved binder and a polyester fiber using the same, in which adhesive properties of the polyester resin for the adhesive strength-improved binder are not lowered at high temperatures since melt viscosity even at high temperatures of the polyester resin for the adhesive strength-improved binder, as a polyester resin for a binder, the polyester resin including terephthalic acid or an ester-forming derivative thereof as an acid component and including 2-methyl-1,3-propanediol, 2-methyl-1,3-pentanediol, and ethylene glycol as diol components, is not greatly lowered.

Abstract: An example device includes a housing including a first surface facing a first direction and a second surface facing a second direction; a transparent cover formed on at least a portion of the first surface of the housing; a display disposed between the transparent cover and the second surface; a sensor disposed between the display and the second surface; and a control circuit, electrically connected to the sensor, for controlling the sensor, wherein the display can include: a first region including a plurality of pixels capable of displaying color; and a second region aligned on at least a portion of the sensor such that light acquired from the outside of the electronic device passes through the sensor.

Abstract: An electronic device is provided. The electronic device includes a housing that forms a rear surface of the electronic device and at least a portion of a side surface of the electronic device, a display that forms a portion of a front surface of the electronic device, a flexible layer extended from the display, the flexible layer including: a bent portion, and a planar portion extended from the bent portion and disposed between the display and the rear surface of the housing, the planar portion including a first surface facing the display and a second surface facing the rear surface, a display driver integrated circuit (DDIC) mounted on the first surface of the planar portion of the flexible layer, the DDIC electrically connected to the display, and a flexible printed circuit board connected with the flexible layer on the second surface of the planar portion of the flexible layer.

Abstract: A portable electronic device is provided.