Can Voice‑Activated Danmu Transform In‑Car Video Interaction?

Recently, Shanghai Bilibili Technology Co., Ltd. published a patent titled “Bullet Screen Processing Method and Device” (CN116112757A).

Although Bilibili’s core product is a video platform that uses bullet screens, the patent’s application scenario is unusual: it targets voice‑issued bullet screens in a car‑terminal environment.

The patent abstract describes a method applied to a car terminal that includes:

Receiving a first voice bullet screen message and generating a pending bullet screen for publishing.

Checking whether a second voice bullet screen message is received within a preset time window.

If yes, treating the second voice message as the first and repeating the generation step.

If no, publishing the pending bullet screen.

In simple terms, the technology can intelligently recognize a user’s spoken content in a car and send it as a video bullet screen, eliminating the need for keyboard input or manual button clicks. It also uses a preset whitelist to improve voice‑recognition efficiency, offering a fast and efficient voice‑based bullet screen solution.

Netizens have criticized the patent as “absurd,” questioning the practicality of watching videos while driving.

Earlier this year, iQIYI filed a patent for a “video bullet screen advertising method, device, equipment and storage medium,” which enables ads to be displayed within bullet screens. This sparked widespread debate on social media.

For video platforms, bullet‑screen advertising represents a new revenue model, but it may affect the viewing experience for users who rely on bullet screens for social interaction.

Whether these patents will be applied in practice remains uncertain.