公开(公告)号：US11089381B2

公开(公告)日：2021-08-10

申请号：US15856409

申请日：2017-12-28

Applicant: HANWHA TECHWIN CO., LTD.

Inventor： Chang Hee Song ,  Sweung Won Cheung ,  Jong Chan Park ,  Mi Ju Park

IPC: H04N21/61 ,  H04N21/231 ,  H04L29/06 ,  H04N21/854 ,  H04N21/2743

Abstract: The present disclosure relates to an apparatus and method for simultaneously playing back and storing media without a plug-in in a web browser. In the present disclosure, since restoration of video, restoration of audio, and backup of media are performed in a multi-threaded manner using a web worker, it is possible to simultaneously perform playback and storage of media. To this end, interworking is performed between a video web worker performing restoration of video, an audio web worker performing restoration of audio, and a backup web worker performing backup of media. According to the present disclosure, it is possible to simultaneously perform playback and backup of media, and it is also possible to stop backup of media and then resume the backup.

公开(公告)号：US10979785B2

公开(公告)日：2021-04-13

申请号：US15833235

申请日：2017-12-06

Applicant: HANWHA TECHWIN CO., LTD.

Inventor： Sweung Won Cheung ,  Jong Chan Park

IPC: H04N21/858 ,  H04N21/8547 ,  G06F16/40 ,  G06F16/958 ,  H04N21/8543 ,  H04N21/43 ,  H04N21/4782 ,  G06F16/957 ,  H04L29/06 ,  H04N21/434

Abstract: A media playback apparatus and a method for synchronously reproducing video and audio on a web browser are provided. In the media playback apparatus, audio is buffered to be outputted at a time point at which video is outputted, thereby synchronizing the outputs of video and audio. The media playback apparatus may output the video in synchronization with the audio even when video and audio are decoded by different decoders. Therefore, it is possible to implement a decoder separately from a decoder embedded in a web browser in a non-plug-in environment, thereby reducing the dependency on the codec format of the media.

公开(公告)号：US10567809B2

公开(公告)日：2020-02-18

申请号：US16245747

申请日：2019-01-11

Applicant: HANWHA TECHWIN CO., LTD.

Inventor： Sweung Won Cheung ,  Do Hyun Kim ,  Jong Chan Park

IPC: H04N21/234 ,  H04N21/2187 ,  G06F9/455 ,  G06F9/445 ,  H04N21/6437 ,  H04N21/81 ,  H04L29/06 ,  H04L29/08 ,  H04N21/231 ,  H04N21/2312 ,  H04N21/239 ,  G06F9/54 ,  H04N21/236 ,  H04N21/845 ,  H04N21/854

Abstract: An apparatus and a method for transmitting media data through live streaming or recorded streaming are provided. Live streaming refers to a case where media being captured in real time by a media service apparatus is played in a user's web browser, and recorded streaming refers to a case where media pre-recorded and stored in a server is played in a user's web browser. In the case of live streaming, since real-time is an important factor, there is provided a media playing method with no initial delay by using a decoder written in a script that can be parsed by a web browser. In the case of recorded streaming, there is provided a media playing method capable of using a decoder embedded in a web browser with no compatibility issue related to a container even when the media service apparatus has no container creation functionality.

公开(公告)号：US10219010B2

公开(公告)日：2019-02-26

申请号：US15647671

申请日：2017-07-12

Applicant: Hanwha Techwin Co., Ltd.

Inventor： Sweung Won Cheung ,  Do Hyun Kim ,  Jong Chan Park

IPC: H04N7/173 ,  H04N21/2187 ,  H04L29/06 ,  H04L29/08 ,  H04N21/231 ,  H04N21/2312 ,  H04N21/239 ,  G06F9/455 ,  G06F9/445 ,  G06F9/54 ,  H04N21/6437 ,  H04N21/81 ,  H04N21/236 ,  H04N21/845 ,  H04N21/854

Abstract: An apparatus and a method for transmitting media data through live streaming or recorded streaming are provided. Live streaming refers to a case where media being captured in real time by a media service apparatus is played in a user's web browser, and recorded streaming refers to a case where media pre-recorded and stored in a server is played in a user's web browser. In the case of live streaming, since real-time is an important factor, there is provided a media playing method with no initial delay by using a decoder written in a script that can be parsed by a web browser. In the case of recorded streaming, there is provided a media playing method capable of using a decoder embedded in a web browser with no compatibility issue related to a container even when the media service apparatus has no container creation functionality.