Apparatus and method for adjusting sound volume
AssigneesHONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD., Hon Hai Precision Industry Co., Ltd.
InventorsLIN-KUN DING, XIANG-PING ZHOU, SHIH-FANG WONG, TSUNG-JEN CHUANG
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Abstract
An apparatus for adjusting a sound volume includes an ultrasonic transreceiver for transmitting an ultrasonic signal and receiving a reflected ultrasonic signal reflected back from an object, and a volume module for adjusting the sound volume based on a time from transmitting the ultrasonic signal to receiving the reflected ultrasonic signal that has a different frequency from the ultrasonic signal.
Claims20
An apparatus for adjusting a sound volume, comprising:
- a transmitter for transmitting an ultrasonic signal;
- a receiver for receiving a reflected ultrasonic signal reflected back from an object;
- a timer for measuring a time from transmitting the ultrasonic signal to receiving the reflected ultrasonic signal that has a different frequency from the ultrasonic signal;
- a distance calculating unit for calculating a distance between the object and the apparatus based on the time;
- and
- an adjust unit for adjusting the sound volume based on the distance.
An apparatus for adjusting a sound volume, comprising:
- an ultrasonic transreceiver for transmitting an ultrasonic signal and receiving a reflected ultrasonic signal reflected back from an object;
- and
- a volume module for adjusting the sound volume based on a time from transmitting the ultrasonic signal to receiving the reflected ultrasonic signal that has a different frequency from the ultrasonic signal.
A method for adjusting a sound volume of an apparatus, comprising:
- transmitting an ultrasonic signal;
- receiving a reflected ultrasonic signal reflected back from an object;
- determining whether there is a frequency difference between the ultrasonic signal and the reflected ultrasonic signal;
- measuring a time from transmitting the ultrasonic signal to receiving the reflected ultrasonic signal if there is the frequency difference between the ultrasonic signal and the reflected ultrasonic signal;
- and
- adjusting the sound volume based on the time.
Dependencies are inferred from the claim text.