Matrix circuit of FM stereo multiplex demodulation circuit

• Main Author: ITOH, MASASHI
• Format: Patent
• Language: English; French; German
• Published: 26.09.1990
• Subjects: BROADCAST COMMUNICATION; CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION ANDCOMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION ANDCOMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THIR OWNENERGY USE; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; STEREOPHONIC SYSTEMS; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; TRANSMISSION

A matrix circuit includes a first resistor (RA) having one end connected to receive a current signal and another end connected to a first output node (51), a second resistor (RB) having one end connected to the one end of said first resistor (RA), a first bipolar transistor (Q3) having a first collector connected to the another end of said second resistor (RB), a first emitter connected to a circuit ground (GND) and a first base connected to said first collector, and a second bipolar transistor (Q4) having a second collector connected to a second output node (52), a second emitter connected to said circuit ground (GND) and a second base connected to said first base.