Muting circuit and semiconductor integrated circuit

Details Muting circuit and semiconductor integrated circuit Muting circuit and semiconductor integrated circuit

2011-05-10

2011-05-10

Lee, Ping (Department: 2614)

Electrical audio signal processing systems and devices

Noise or distortion suppression

Soft switching, muting, or noise gating

C330S051000

Reexamination Certificate

active

07940940

ABSTRACT:
A muting circuit of the present invention includes: an input terminal that receives a control signal for allowing switching between ON and OFF of a mute operation; and a muting transistor connected to the input terminal and an output terminal of the amplifier. The muting transistor is a MOS transistor, and a gate is connected to the input terminal, a drain is connected to the output terminal of the amplifier, and a source is grounded. Consequently, a shot noise due to a DC difference caused when a mute state is switched between ON and OFF can be suppressed.

REFERENCES:
patent: 4633095 (1986-12-01), Komatu
patent: 6016352 (2000-01-01), Barmore
patent: 6734746 (2004-05-01), Nogi
patent: 2003/0228024 (2003-12-01), Hayama
patent: 58-172019 (1983-10-01), None
patent: 1-316037 (1989-12-01), None
patent: 9-46149 (1997-02-01), None
patent: 2001-244749 (2001-09-01), None
patent: 2002-111446 (2002-04-01), None
patent: 2002-271217 (2002-09-01), None
patent: 2003-23322 (2003-01-01), None
patent: 2003-318656 (2003-11-01), None
patent: 2004-320490 (2004-11-01), None

Affiliated with

Also associated with

Rating

Muting circuit and semiconductor integrated circuit does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Muting circuit and semiconductor integrated circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Muting circuit and semiconductor integrated circuit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2632606