Matrix surround decoder/virtualizer

Electrical audio signal processing systems and devices – Binaural and stereophonic – Pseudo stereophonic

Reexamination Certificate

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Details

C381S018000, C381S020000, C381S027000

Reexamination Certificate

active

07003119

ABSTRACT:
The inventive mechanism uses several sub-systems to generate outputs from the stereo input signal. A first sub-system synthesizes the phantom center output, which places the monaural center image between the left and right speakers in front of the listener. A second sub-system synthesizes the virtual surround (or rear) output signals, which places the sound images to the sides of the listener. A third sub-system synthesizes the left and right stereo outputs, and expands the locations of the left and right sound images.

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patent: 5774556 (1998-06-01), Lowe et al.
patent: 5796844 (1998-08-01), Griesinger
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PCT Search Report (PCT/IB00/00788) dated Jan. 28, 2000.

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