Microphone input buffer biasing circuit

Details Microphone input buffer biasing circuit Microphone input buffer biasing circuit

2007-05-22

2007-05-22

Lee, Ping (Department: 2615)

Electrical audio signal processing systems and devices

Circuitry combined with specific type microphone or loudspeaker

C381S120000

Reexamination Certificate

active

10411556

ABSTRACT:
An input biasing circuit for a microphone is disclosed. The circuit includes an input and an output. An input transistor is connected between the input and the output and to a biasing circuit. The biasing circuit DC biases the gate terminal of the input transistor. A resistor operably connected to, and cooperating with the input transistor, provides a buffered version of a received microphone transducer signal to the output.

REFERENCES:
patent: 3512100 (1970-05-01), Killion et al.
patent: 4151480 (1979-04-01), Carlson et al.
patent: 5083095 (1992-01-01), Madaffari
patent: 5097224 (1992-03-01), Madaffari et al.
patent: 5589799 (1996-12-01), Madaffari et al.
patent: 0 880 225 (1998-11-01), None
patent: 0 969 695 (2000-01-01), None
patent: 1 061 427 (2000-12-01), None
patent: 1 219 299 (1971-01-01), None
European Search Report for Application No. 03 25 2383.9 dated Jun. 5, 2003.

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