Variable rate and variable limit dimension controls for a direct

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

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381 20, H04S 302

Patent

active

045258554

ABSTRACT:
The disclosed invention relates to directional enhancement systems and provides apparatus for enhancing the directional content of information contained in a plurality of composite signals derived from preceding decoding apparatus of the system. The apparatus of this invention includes a plurality of limiting devices equal in number to the number of control signals provided in the processor of the directional enhancement system. Each one of the plurality of limiting devices has an input terminal connected to a different one of the control signal outputs of the processor, a control terminal and a control device having an input coupled to a variable control voltage source and an output coupled in common to all of the control terminals of said limiting device. The apparatus of this invention limits any control signal which may be developed in the processor to a value less than or equal to that which would obtain in the absence of the dimension control apparatus of this invention.

REFERENCES:
patent: 3708631 (1973-01-01), Bauer et al.
patent: 3864516 (1975-02-01), Kameoka et al.
patent: 3883692 (1975-05-01), Tsurushima
patent: 3944735 (1976-03-01), Willcocks

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