Systems and methods for controlling closed captioning
US11290786B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 13, 2019 |
| Grant date | Mar 29, 2022 |
| Priority date | — |
| Expiry date | Sep 13, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/84
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system for controlling turning on and off of closed captioning receives information regarding a program content stream and automatically determines whether to turn on or off closed captioning based on thresholds being crossed regarding an estimated current loudness level of ambient noise and an estimated current loudness level of the audio of the program content stream. The estimated current loudness level of audio of the program content stream is, or is based on, one or more indications of current volume level in an audio signal representing the audio of the program content stream and current audio settings of a device outputting the audio of the program content stream. The system may estimate the loudness level of the ambient noise by use of a loudness meter that causes the ambient noise to be sampled with a microphone and a decibel level of the sampled ambient noise to be determined.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.