Signal composing circuit

Details Signal composing circuit Signal composing circuit

1974-09-26

1976-03-30

Olms, Douglas W.

Amplifiers

Signal feedback

Combined with control of bias voltage of signal amplifier

330 30R, 330 30D, H04R 500, H03G 330

Patent

active

039476375

ABSTRACT:
A signal composing circuit suitable for a decoder device of a 4-channel matrix stereophonic system comprises two types of circuit units, one being a differential type circuit in which the common emitters are connected to ground through constant current means, the other having a like circuit arrangement as the differential type circuit but having constant current means shunted with a capacitor so as to ground the common emitters for A.C. signals. The signal composing circuit is suited for monolithic integrated circuits.

REFERENCES:
patent: 3178651 (1965-04-01), Kegelman
patent: 3482177 (1969-12-01), Sylvan
patent: 3706937 (1972-12-01), Hanna
patent: 3821474 (1974-06-01), Ohsawa
patent: 3825684 (1974-07-01), Ito et al.

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