发明名称 |
Hysteretic control of audio gain in response to battery conditions |
摘要 |
An electronic accessory, powered by a battery having a first terminal and a second terminal includes a voltage comparator capable of comparing the battery voltage to at least one reference voltage and that generates a voltage comparator signal having a value that is a function of the battery voltage relative to the reference voltage. A gain control circuit couples an input signal to a first signal path when the voltage comparator signal is above a first value and to a second signal path when the voltage comparator signal is below a second value. The first signal path includes a first component that causes an amplifier to have a first gain. The second signal path includes a second component that causes the amplifier to have a second gain.
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申请公布号 |
US6388524(B1) |
申请公布日期 |
2002.05.14 |
申请号 |
US20010849215 |
申请日期 |
2001.05.04 |
申请人 |
MOTOROLA, INC. |
发明人 |
ANDERSON, JR. WAYNE;RILEY MARC B. |
分类号 |
H03G1/00;(IPC1-7):H03G3/10 |
主分类号 |
H03G1/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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