H - Electricity – 04 – R
Patent
H - Electricity
04
R
179/5, 179/8
H04R 5/04 (2006.01) H04B 1/16 (2006.01) H04S 3/02 (2006.01)
Patent
CA 1188624
FM STEREO APPARATUS AND METHOD ABSTRACT An output matrix adapted to receive an L+R signal component (made up of the sum of L and R stereo components) and an L-R signal component, and to combine these in a manner to produce a separate L output and a separate R output, with certain modifications to the outputs. The higher frequency portion of the L-R signal is passed through a detector which, in turn, causes a leading edge amplifier to transmit to the matrix only those signal portions where there is a relatively abrupt change of amplitude, these being the signal portions which contain the main stereo information which gives the directional information. Also, the L+R signal component, in addition to being transmitted directly to the matrix, is directed through time delay means to produce a time delayed L+R signal component that is also transmitted to the matrix, so as to provide what are called "ambient" sounds to the output of the matrix.
429553
Carver Robert W.
Gowling Lafleur Henderson Llp
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