Earphone device and calibration method

Abstract

The system performs offset calibration of the installed gyro sensor at a time outside of the production process, helping to improve the user experience. [Solution] The earphone device comprises a pair of earphone devices that are worn on each of the user's left and right ears. Each earphone device includes a gyro sensor that detects the rotation of the user's head, a processor that controls sound localization processing related to the playback of sound signals based on the detected values ​​of the gyro sensor, and an insertion sensor that detects insertion into a cradle capable of housing the earphone device. In response to the detection of insertion of the earphone device into the cradle, the processor acquires multiple detected values ​​from the gyro sensor, and if the multiple detected values ​​satisfy predetermined conditions, it updates the offset value of the gyro sensor using the multiple detected values ​​and stores it in memory.

Claims

1. It comprises a pair of earphone devices that are worn on each of the user's left and right ears, The aforementioned earphone device A gyro sensor that detects the rotational angular velocity of the user's head, A processor that controls sound image localization processing related to the reproduction of sound signals based on the detected rotational angular velocity of the gyro sensor, It has an insertion sensor that detects insertion into a cradle capable of housing the aforementioned earphone device, The processor, upon detecting the insertion of the earphone device into the cradle, acquires multiple detected values ​​of the rotational angular velocity of the gyro sensor, and when a calculated value based on the multiple detected values ​​satisfies a predetermined condition, it updates the offset value of the rotational angular velocity of the gyro sensor using the calculated value and stores it in memory. Earphone device.

2. The processor acquires multiple detected values ​​multiple times, and updates the offset value using the first calculated value if the calculated value satisfies the predetermined conditions multiple times. The earphone device according to claim 1.

3. The calculated value is the average of a plurality of the detected values. The processor updates the offset value stored in the memory to the average value when the average value falls within a predetermined range. The earphone device according to claim 1.

4. The processor calculates the calculated value using a plurality of detected values ​​after a predetermined time has elapsed since detecting the insertion of the earphone device into the cradle. The earphone device according to claim 1.

5. The processor, upon detecting both the insertion of the earphone device into the cradle and the charging of the cradle, acquires multiple detected values ​​of the rotational angular velocity of the gyro sensor. The earphone device according to claim 1.

6. A calibration method performed by an earphone device comprising a pair of earphone devices worn on each of the user's left and right ears, The earphone device includes a gyro sensor for detecting the rotational angular velocity of the user's head, a processor for controlling sound localization processing related to the playback of sound signals based on the rotational angular velocity detected by the gyro sensor, and an insertion sensor for detecting insertion into a cradle capable of housing the earphone device. Upon detection of insertion of the earphone device into the cradle, multiple values ​​of the rotational angular velocity detected by the gyro sensor are acquired. When a calculated value based on multiple detected values ​​satisfies predetermined conditions, the offset value of the rotational angular velocity of the gyro sensor is updated using the calculated value and stored in memory. Calibration method.

Images