Transmitting device and transmitting method, and receiving device and receiving method
US10797811B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 9, 2016 |
| Grant date | Oct 6, 2020 |
| Priority date | — |
| Expiry date | May 16, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04H60/73
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Information to be displayed overlaid on a video of a broadcast program is transmitted and received.At the same time, information related to display data objects which are equal in number to objects to be displayed on a screen is described in one moving object list description document. The information related to the display data object includes a position and a size of the display data object on the screen and the display data or acquisition destination information of the display data. Further, the moving object list description document and the display data of the display data object to be referred to from the moving object list description document are packaged and intermittently transmitted as a versatile data stream together with a time stamp indicating a display time of a package unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.