Surround device

Details Surround device Surround device

2006-03-14

2006-03-14

Grier, Laura A. (Department: 2644)

Electrical audio signal processing systems and devices

Binaural and stereophonic

Stereo speaker arrangement

C381S056000, C381S022000, C381S098000, C381S061000

Reexamination Certificate

active

07013013

ABSTRACT:
There is provided a surround device which processes stereo signals decoded by a decoder of a multi-channel surround method comprises boost means which boosts middle and low frequency components of a center channel signal in the stereo signals. There is also provided a surround device which processes stereo signals decoded by a decoder of a Dolby Pro Logic method comprises boost means which boosts high frequency components of a surround channel signal in the stereo signals. The boost means is composed of a level detector for detecting an output level of the channel signal, an operation portion for calculating and determining an amount of boost based on a result of the level detector, and a signal boost portion for boosting the channel signal based on a result of the operation portion.

REFERENCES:
patent: 4024344 (1977-05-01), Dolby et al.
patent: 4622689 (1986-11-01), Hobrough
patent: 5172358 (1992-12-01), Kimura
patent: 5189703 (1993-02-01), Holman
patent: 5197100 (1993-03-01), Shiraki
patent: 5298674 (1994-03-01), Yun
patent: 5673327 (1997-09-01), Julstrom
patent: 5764777 (1998-06-01), Goldfarb
patent: 5850453 (1998-12-01), Klayman et al.

Affiliated with

Also associated with

Rating

Surround device does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3565914