Invention Grant
- Patent Title: Transmission apparatus, transmission method, reception apparatus, and reception method
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Application No.: US16937153Application Date: 2020-07-23
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Publication No.: US11317055B2Publication Date: 2022-04-26
- Inventor: Ikuo Tsukagoshi
- Applicant: SATURN LICENSING LLC
- Applicant Address: US NY New York
- Assignee: SATURN LICENSING LLC
- Current Assignee: SATURN LICENSING LLC
- Current Assignee Address: US NY New York
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: JPJP2016-200179 20161011
- Main IPC: H04N7/08
- IPC: H04N7/08 ; H04N7/173 ; H04N7/025 ; H04N5/57 ; H04N9/64 ; H04N21/435 ; H04N5/202 ; H04N21/488 ; H04N21/235 ; H04N5/278
Abstract:
A processing load on a reception side when subtitle graphics data is superimposed on video data is alleviated.
A video stream including video data is generated. A subtitle stream including bitmap data is generated, the bitmap data being obtained by converting subtitle graphics data. A container having a predetermined format containing the video stream and the subtitle stream is transmitted. The subtitle stream includes a bitmap conversion table containing conversion information of a color gamut and/or a luminance. On the reception side, subtitle graphics data having characteristics matched with those of target video data of a superimposition destination can be easily obtained by just converting the bitmap data to the subtitle graphics data by using the bitmap conversion table.
A video stream including video data is generated. A subtitle stream including bitmap data is generated, the bitmap data being obtained by converting subtitle graphics data. A container having a predetermined format containing the video stream and the subtitle stream is transmitted. The subtitle stream includes a bitmap conversion table containing conversion information of a color gamut and/or a luminance. On the reception side, subtitle graphics data having characteristics matched with those of target video data of a superimposition destination can be easily obtained by just converting the bitmap data to the subtitle graphics data by using the bitmap conversion table.
Information query
