KR910003962A - Circuit arrangement for dematrix and distribution of acoustic signals - Google Patents

Abstract

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Description

Circuit arrangement for dematrix and distribution of acoustic signals

Since this is an open matter, no full text was included.

1 is a diagram showing a circuit arrangement for a switch according to the present invention to release a matrix of stereo sound signals or two-channel sound signals by condenser technology;

FIG. 3 shows control logic for performing a switching process in the circuit arrangement shown in FIG.

Claims (4)

A circuit arrangement for releasing a matrix of a stereo or two-channel acoustic signal and distributing it in a switch condenser type, comprising:-a first input (1) coupled to the first output (2) and supplied to the first input (1); Scan value of the first input-switch capacitor stage 3 composed of two parallel connectable capacitors C for scanning one signal and the first signal supplied from the first input-switch capacitor stage 3 connected thereto. A first transmission branch, consisting of a first integrating stage (4), which integrates the second input (5) with the supplied second output (6) and providing a second signal to the second input (5). And a second integrating stage 8 connected to the second input-switch capacitor stage 7 for scanning and integrating the scan value of the second signal supplied from the second input-switch capacitor stage 7. the second transmission branch, - feedback capacitor which is fixed connected to (C ₁₎ and selectively connectable scanning cycle feedback condenser The first and second integrators 4 and 8 with amplifiers entangled by (Co), scan two capacitors, i.e., the second signal, and be connected in series with the first capacitor (C) Consisting of a third switch condenser stage 9 consisting of a capacitor (via P ₈ ) which can carry the signal with the second capacitor 2C) via P ₅ P ₇ and can be coupled with the first integrating stage 4. 1. In a circuit arrangement provided with a first coupling branch from the second input 5 to the first integrating stage 4, etc., the first input-the second from one of the capacitors of the switch capacitor stage 3; A second coupler connectable to the integrating stage 8,-a second input-between the switch condenser stage 7 and the second integrating stage 8, the signal being input to the second input 5 in the second input-switch condenser stage Scanned in parallel with respect to (7), the scan values of these two switch capacitor stages 7 and 11 can be transferred to the common capacitor 2C, and the scan values are transferred from this capacitor to the second integrator stage 8 To be supplied to The additional switch capacitor stage 11 inserted so that it can be inserted in the third switch condenser stage 9 is further provided with a third capacitor (via P ₈ ) which can be connected in parallel to the first capacitor. Circuit device. The method according to claim 1, wherein another feedback capacitor (CO ₁ , CO ₂ ) can be successively connected in parallel to the fixedly connected feedback capacitor (C ₁ ) of the integration stage (4, 8) (S ₄ to S). Circuit device, characterized in that ₇ ). The circuit arrangement according to claim 1 or 2, wherein the input signal selection terminals (S ₁ , S ₂ ) are connected in series. 4. The circuit arrangement according to claim 1, 2 or 3, wherein a band limiting filter (16, 17) is connected in series with the input. ※ Note: The disclosure is based on the initial application.