公开(公告)号：US09699524B2

公开(公告)日：2017-07-04

申请号：US14766681

申请日：2014-03-19

Applicant: LG ELECTRONICS INC.

Inventor： Donghyun Kang ,  Seonah Lee ,  Sejin Oh ,  Jongsung Choi ,  Younghwan Kwon ,  Seungjoo An ,  Jungwook Park ,  Jinpil Kim ,  Seungryul Yang ,  Kyoungsoo Moon

IPC: H04N21/858 ,  H04N21/41 ,  H04N21/436 ,  H04N21/4363 ,  H04N21/443 ,  H04N21/437 ,  H04N21/6405 ,  H04N21/81

CPC classification number: H04N21/858 ,  H04N21/4126 ,  H04N21/43615 ,  H04N21/43637 ,  H04N21/437 ,  H04N21/4432 ,  H04N21/6405 ,  H04N21/8133 ,  H04N21/8173

Abstract: Disclosed are a signal transmitting method, a signal transmitting apparatus, and a system for transmitting and receiving a signal. The signal transmitting method comprises the steps of: discovering a companion device using a multicast mode; receiving and storing device type information from the discovered companion device; receiving an application uniform resource identifier (URI) and storing the application URI to correspond to the device type information; and identifying the device type information of the companion device selected by a user and transmitting to the selected companion device the application URI corresponding to the device type information.