Abstract: A robot hand module includes a palm part and a thumb module coupled to the palm part, wherein the thumb module includes a thumb phalangeal part movably coupled to the palm part, a thumb cable part having a first side connected to the thumb phalangeal part, and a thumb driving part connected to a second side of the thumb cable part and configured to operate the thumb phalangeal part by extending the thumb cable part to the outside or retracting the thumb cable part, and wherein the thumb phalangeal part includes a thumb pre-tensioner configured to pull the thumb cable part, a first side of the thumb pre-tensioner being fixed relative to the thumb phalangeal part, and a second side of the thumb pre-tensioner being fixed to the thumb cable part.

Abstract: A robot hand module includes a palm part and a thumb module coupled to the palm part. The thumb module includes a thumb phalangeal part movably coupled to the palm part, a thumb cable part having a first side connected to the thumb phalangeal part, and a thumb driving part connected to a second side of the thumb cable part and configured to operate the thumb phalangeal part by extending the thumb cable part to the outside or retracting the thumb cable part. The thumb cable part includes a first thumb cable extended from the thumb driving part and having a first side fixed in the thumb phalangeal part and a second thumb cable having a first side and a second side fixed in the thumb phalangeal part.

Abstract: A robot hand module includes a thumb module and a finger module each coupled to a palm part, wherein the thumb module or the finger module includes a phalangeal part movably coupled to the palm part and a cable part and a driving part each connected to the phalangeal part, wherein the driving part includes a driving part body extending in one direction and including a rotary shaft configured to rotate by receiving power, a drum member coupled to one side of the driving part body, connected to the rotary shaft, and having an outer periphery surrounded by the cable part, and a tensioner member spaced apart from the drum member in a direction in which the cable part extends outward, wherein the tensioner member is movable in the direction in which the cable part extends to adjust tension of the cable part.

Abstract: A robot hand module includes a finger phalangeal part movably coupled to a palm part, a finger cable part having a first side connected to the finger phalangeal part, and a finger driving part connected to a second side of the finger cable part for operating the finger phalangeal part by extending the finger cable part to the outside or retracting the finger cable part, wherein the finger phalangeal part includes finger link pails including a plurality of link members and a finger link driving part for transmitting power to the finger link parts in a rectilinear direction, and wherein when the finger link pails receive the power from the finger link driving part in the rectilinear direction, some of the link members rotate relative to remaining ones of the link members, such that the finger phalangeal part rotates relative to the palm part.

Abstract: A robot hand module includes a thumb module, a plurality of finger modules, and a palm part to which the thumb module and the finger modules are coupled. The thumb module and the finger modules each include a phalangeal part movably coupled to the palm part, a cable part having a first side connected to the phalangeal part, and a driving part connected to a second side of the cable part and configured to operate the phalangeal part by extending the cable part to the outside or retracting the cable part, wherein each of the driving parts includes an inlet region from which the cable part is extended to the outside, and wherein an acute angle is defined between a first direction in which the inlet region is directed toward the outside and a second direction in which the driving parts are disposed.

Abstract: The present disclosure relates to a method of transmitting multimedia content in a broadcast communication system, and comprises the steps of: identifying protocol information mapped for each service corresponding to multimedia content; transmitting service-related information including the identified protocol information mapped for each service; and transmitting multimedia content corresponding to related services to a receiving side by using the identified protocol.

Abstract: A wearable apparatus for assisting muscular strength includes a back support, and a connection chain having a first end portion coupled to the back support to be rotatable upward or downward. The connection chain extends from the back of the wearer to a side thereof and includes a plurality of rotary elements arranged abreast laterally, each rotary element being rotatably coupled to an adjacent rotary element laterally. The wearable apparatus further includes an upper arm module that extends in a direction in which an upper arm of the wearer extends, one end portion of the upper arm module coupled to a second end portion of the connection chain to be rotatable upward or downward with respect to the one end portion. The upper arm module generates a rotational force for rotating the upper arm of the wearer upward or downward.

Abstract: A method of recovering an active metal of a lithium secondary battery according to an embodiment of the present invention includes preparing a waste cathode active material mixture obtained from a waste cathode of a lithium secondary battery, forming a preliminary precursor mixture by reacting the waste cathode active material mixture with a reactive gas in a fluidized bed reactor, and selectively recovering a lithium precursor from the preliminary precursor mixture. The fluidized bed reactor includes a reactor body and a horizontal expansion bed, and a ratio of a diameter of the horizontal expansion bed relative to a diameter of the reactor body is 3 or more to improve a recovery efficiency of a lithium secondary battery.

Abstract: A method for providing a broadcast service is provided. The method includes transmitting a user datagram protocol (UDP)/internet protocol (IP) packet including a first message, the first message containing information about a message to be signed and transmitted, and transmitting a moving picture experts group (MPEG) media transport protocol (MMTP) packet including a second message, the second message containing information about the broadcast service and information indicating whether the information about the broadcast service is signed. The first message includes an identifier of a key used to verify a signature of the message to be transmitted and signed and an identifier of a hash algorithm used to calculate a hash value of the message to be transmitted and signed.

Abstract: Provided is a method for supporting an immersive media service by a media transmission device. The method comprises the steps of: determining at least one space among a plurality of spaces of interest (SOI) based on SOI description information; and transmitting, to a media reception apparatus, partial SOI description information among the SOI description information and partial immersive media data among immersive media data, wherein the partial SOI description and the partial immersive media data corresponds to the determined at least one SOI, wherein the partial SOI description information includes at least one of identification information for the at least one SOI, a space range indicator for an object of interest (OOI), a priority indicator for the OOI, or an object vector for the OOI.

Abstract: A horizontally movable bowling bag is provided to prevent movement of a bowling ball configured such that, in order to prevent movement or falling of the bowling ball when a frame is horizontally moved or when a cover is opened, four or more points of the bowling ball including a lower part of the bowling ball and a bottom surface of the bowling ball along an outer circumference thereof are adjacent to or supported by an upper part of a ball cup provided at the frame and an inner surface of the frame, whereby movement of the bowling ball in the frame is prevented when the frame is horizontally moved.

Abstract: A wearable apparatus for assisting muscular strength includes: a main body mechanism extending in a vertical direction of a wearer's torso, and being fixed to a side of a wearer's torso under a wearer's shoulder; a fastening mechanism extending along an extension direction of a wearer's upper arm, and being disposed at and being in contact with a lower surface of the wearer's upper arm; a connecting mechanism having a first end coupled to the fastening mechanism and a second end movably coupled to the main body mechanism so as to be movable with respect to the main body mechanism; and a support mechanism movably coupled between the first end and the second end of the connecting mechanism to apply a support force to the connecting mechanism, and coupled to the main body mechanism and movable with respect thereto.

Abstract: A movable object includes an upper frame and a drive part that is provided under the upper frame and is connected to the upper frame. The drive part includes a first actuator that is connected to the upper frame and rotates on a vertical axis, a first link that is connected to the first actuator and rotatable on the vertical axis by the first actuator, a second actuator that is provided on a first side of the first link and rotates on a horizontal axis, and a second link that faces the first link and is rotatable on a first end portion thereof facing the first link by the second actuator.

Abstract: A controller includes: a head part including a display unit providing information and images and a button unit having operation buttons; and a body part joined to the head part, where the display unit includes a projection portion engaged with the body part, the body part includes a recessed portion into which the projection portion is inserted, a first uneven portion is provided on an outer circumferential surface of the projection portion, a second uneven portion having a shape corresponding to that of the first uneven portion is provided on an inner circumferential surface of the recessed portion, and at least one of the first uneven portion or the second uneven portion includes a plurality of uneven portions.

Abstract: A method for isolating a lithium precursor according to an embodiment of the present disclosure includes preparing a preliminary precursor mixture including a preliminary lithium precursor and a preliminary transition metal precursor, mixing the preliminary precursor mixture and a precipitation liquid in a reactor to form a precursor mixture, and injecting a non-reactive gas into the precursor mixture. Accordingly, the lithium precursor can be isolated with high yield and high efficiency.

Abstract: A combined structure of a wearable apparatus includes: a torso fastening part fixedly fastened to a wearer's torso; a fixed link extending from the torso fastening part to a position above a wearer's shoulder; a first link and a second link being respectively coupled to the fixed link to be laterally rotatable, and crossing each other while being vertically spaced apart from each other; a rotatable part disposed at a position above the wearer's shoulder, and coupled to the first link and the second link to be laterally rotatable; a connecting part coupled to the rotatable part; and an upper arm module coupled to be rotatable upward or downward about the connecting part while an end thereof is coupled to the connecting part at a position corresponding to an upper end portion of a wearer's upper arm.

Abstract: A method for providing a multimedia service based on unicast, according to the present invention, comprises the steps of: packetizing multimedia data; when a terminal accesses the multimedia service, determining a mode for transmitting the multimedia data to the terminal; generating a signaling message including information on the determined mode, and transmitting the signaling message to the terminal; and transmitting first data among the packetized multimedia data to the terminal on the basis of the determined mode.

Abstract: The present invention relates to a method and device for transmitting or receiving a broadcast service including a packet, which is generated using an application layer forward error correction (AL-FEC) scheme, in a multimedia service system. An embodiment of the present invention provides a method for transmitting a broadcast service by a transmitter, the method comprising the steps of: determining one forward error correction (FEC) scheme for a broadcast service among multiple FEC schemes; configuring a signaling message so as to include an identifier indicating the determined FEC scheme; and transmitting the configured signaling message.

Abstract: Proposed is a wearable chair with a truss structure, the wearable chair including: an upper rod extending in a longitudinal direction thereof and connected to a wearer's thigh; a lower rod extending in a longitudinal direction thereof and connected to a lower leg of the wearer, the lower rod being coupled to a lower end part of the upper rod at an upper end part of the lower rod and being in contact with the ground at a lower end part of the lower rod when the wearer sits; and a support rod slidably coupled to the upper rod at an upper end part of the support rod and rotatably coupled to the lower rod at a lower end part of the support rod to support a compression force between the upper rod and the lower rod in a longitudinal direction of the support rod when the wearer sits.

Abstract: A method for transmitting multimedia according to the present disclosure comprises: a step of transmitting a first message including fixed delay information and buffer information with respect to a receiving device; and a step of transmitting a packet relating to the multimedia and including a transmission time stamp, wherein a first packet is sent out from a digital buffer of the receiving device at a time determined by adding up the transmission time stamp and the fixed delay information.