Always-on AI experiences (for example camera-based human presence)įor devices supporting always-on Camera-based AI features, where the AI silicon shares the main camera sensor, LED requirements differ when the dedicated presence silicon is exclusively accessing the camera. See Camera privacy shutter LED requirements for information with camera privacy shutters and HLK LED requirements for camera kill switches. LED requirements can differ for designs with camera privacy shutters or camera kill switches. In-use indicator not required but recommended ON
ROLLING SHUTTER COUNTER AND SERVING WINDOWS FULL
Here is the full table of core LED requirements: Stream state We recommend all designs turn the regular in-use indicator LED ON when the IR or RGB camera is used, regardless of if the IR illuminator LED uses a visible wavelength or not. We recommend sharing the camera in-use indicator LED, so that the same visible wavelength LED turns on when the IR sensor and/or RGB sensor is ON: This means that if the IR camera is on by itself, HLK requirements are satisfied by the IR illuminator LED being lit:ĭesigns using an invisible wavelength IR illuminator must use a visible wavelength LED to indicate when the IR camera is active, to satisfy HLK requirements. Additionally, apps may stream from the IR sensor by itself, the RGB sensor by itself, or both concurrently.ĭesigns using a visible wavelength IR illuminator may choose to use the IR illuminator LED as the visible indicator LED. For RGB cameras, if the camera is active, a single visible wavelength LED (for example, white, green, blue, and so on) must be ON:įor cameras with an RGB+IR sensor, this can be more complex because the IR camera requires an illuminator LED, and the illuminator LED may use a visible wavelength (850nm) or invisible wavelength (940nm). Regardless of shutters or kill switches, HLK requires that a visible indicator LED be ON when the ISP is capturing sensor data. This topic provides device design guidance for privacy shutters or kill switches, considerations for shutter state sensing, and how shutters are expected to interact with existing HLK requirements for indicator LEDs.
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