H - Electricity – 04 – B
Patent
H - Electricity
04
B
179/2
H04B 1/62 (2006.01) H03G 5/04 (2006.01) H03G 7/00 (2006.01) H03G 9/02 (2006.01)
Patent
CA 1290255
ABSTRACT A variable preemphasis/deemphasis network is disclosed which is coupled between audio input and output terminals. The network exhibits a family of transfer function response characteristics which vary between a full deemphasis characteristic H(f) and a full emphasis characteristic 1/H(f) in response to a control signal and exhibits complementary transfer function response characteristics in response to reciprocal valued control signals. The network includes a signal filter which determines the shape of the transfer function response characteristic, and a gain controlled amplifier which determines which one of the family of transfer function response characteristics is exhibited in response to the control signal.
549080
Christopher Todd J.
Gibson John James
Craig Wilson And Company
Rca Licensing Corporation
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