发明名称 High gain cascode amplifier with negative feedback
摘要 An amplifier combining the properties of high gain, wide band audio response with input signal conditioning, constant current output for use on two wire systems and compound negative feedback for resistance to oscillation in acoustic feedback environments. The direct coupled amplifier combines a modified cascode stage with a composite connected transistor output stage. It is intended primarily for use in two wire communication of voice transmission such as in telephone handsets or telephone instruments.
申请公布号 US4523057(A) 申请公布日期 1985.06.11
申请号 US19840596175 申请日期 1984.04.02
申请人 GTE BUSINESS COMMUNICATION SYSTEMS 发明人 BOECKMANN, EDUARD F. B.
分类号 H04M1/60 主分类号 H04M1/60
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