Active gain adjusting method and related system based on distance from users
First Claim
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1. A gain adjusting system for adjusting a gain of a sound signal in an audio system, the gain adjusting system comprising:
- a first detecting unit for capturing images of one or more faces of users and determining the number of faces and the size of the faces present in the images;
a controller for receiving face data from the first detecting unit for comparing the sizes of faces in subsequently captured images with an initial face size and accordingly deciding and outputting a first decision signal; and
a gain regulator coupled to the controller for adjusting the gain level of the sound signal according to the first decision signal.
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Abstract
A gain adjusting system for adjusting a gain of a sound signal in an audio system, includes a first detecting unit for capturing images of one or more faces of users and determining the number of faces and the size of the faces present in the images; a controller for receiving face data from the first detecting unit for comparing the sizes of faces in subsequently captured images with an initial face size and accordingly deciding and outputting a first decision signal; and a gain regulator coupled to the controller for adjusting the gain level of the sound signal according to the first decision signal.
17 Citations
50 Claims
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1. A gain adjusting system for adjusting a gain of a sound signal in an audio system, the gain adjusting system comprising:
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a first detecting unit for capturing images of one or more faces of users and determining the number of faces and the size of the faces present in the images; a controller for receiving face data from the first detecting unit for comparing the sizes of faces in subsequently captured images with an initial face size and accordingly deciding and outputting a first decision signal; and a gain regulator coupled to the controller for adjusting the gain level of the sound signal according to the first decision signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A gain adjusting system for adjusting a gain of a sound signal in an audio system, the gain adjusting system comprising:
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a first detecting unit coupled to the controller, the first detecting unit detecting a reflected signal reflected from a user and outputting the reflected signal; a controller for receiving the reflected signal from the first detecting unit and accordingly deciding and outputting a first decision signal; and a gain regulator coupled to the controller for adjusting the gain level of the sound signal according to the first decision signal. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37)
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38. A method of adjusting a gain of a sound signal in an audio system, the method comprising:
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capturing images of one or more faces of users and determining the number of faces and the size of the faces present in the images; comparing the sizes of faces in subsequently captured images with an initial face size and accordingly deciding and outputting a first decision signal; and adjusting the gain level of the sound signal according to the first decision signal. - View Dependent Claims (39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50)
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Specification