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Redmi Note 8 64Gb+6Gb Dual LTE
Руководство по эксплуатации Страница: 90

Xiaomi Redmi Note 8 64Gb+6Gb Dual LTE [90/132] Biometric sensors

of at least 100 sensor events.

MUST have a power consumption not worse than 0.5 mW when device is static

and 1.5 mW when device is moving.

MUST have a batching power consumption not worse than 4 mW.

[C-2-11] MUST have a TYPE_STEP_COUNTER sensor which:

MUST have a power consumption not worse than 0.5 mW when device is static

and 1.5 mW when device is moving.

[C-2-12] MUST have a TILT_DETECTOR sensor which:

MUST have a power consumption not worse than 0.5 mW when device is static

and 1.5 mW when device is moving.

[C-2-13] The event timestamp of the same physical event reported by the Accelerometer,

Gyroscope, and Magnetometer MUST be within 2.5 milliseconds of each other. The event

timestamp of the same physical event reported by the Accelerometer and Gyroscope

SHOULD be within 0.25 milliseconds of each other.

[C-2-14] MUST have Gyroscope sensor event timestamps on the same time base as the

camera subsystem and within 1 milliseconds of error.

[C-2-15] MUST deliver samples to applications within 5 milliseconds from the time when

the data is available on any of the above physical sensors to the application.

[C-2-16] MUST NOT have a power consumption higher than 0.5 mW when device is static

and 2.0 mW when device is moving when any combination of the following sensors are

enabled:

SENSOR_TYPE_SIGNIFICANT_MOTION

SENSOR_TYPE_STEP_DETECTOR

SENSOR_TYPE_STEP_COUNTER

SENSOR_TILT_DETECTORS

[C-2-17] MAY have a TYPE_PROXIMITY sensor, but if present MUST have a minimum

buffer capability of 100 sensor events.

Note that all power consumption requirements in this section do not include the power consumption

of the Application Processor. It is inclusive of the power drawn by the entire sensor chain—the

sensor, any supporting circuitry, any dedicated sensor processing system, etc.

If device implementations include direct sensor support, they:

[C-3-1] MUST correctly declare support of direct channel types and direct report rates

level through the isDirectChannelTypeSupported and getHighestDirectReportRateLevel API.

[C-3-2] MUST support at least one of the two sensor direct channel types for all sensors

that declare support for sensor direct channel.

TYPE_HARDWARE_BUFFER

TYPE_MEMORY_FILE

SHOULD support event reporting through sensor direct channel for primary sensor (non-

wakeup variant) of the following types:

TYPE_ACCELEROMETER

TYPE_ACCELEROMETER_UNCALIBRATED

TYPE_GYROSCOPE

TYPE_GYROSCOPE_UNCALIBRATED

TYPE_MAGNETIC_FIELD

TYPE_MAGNETIC_FIELD_UNCALIBRATED

7.3.10. Biometric Sensors

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Xiaomi Redmi Note 8 64Gb+6Gb Dual LTE [90/132] Biometric sensors

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