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JP2009088822A
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Simultaneous two-way communication system
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JP2001144547A
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Howling prevention circuit
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JP2000138538A
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Broad-band amplifier circuit and application device using the circuit
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JP2000174566A
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Signal discrimination circuit using instantaneous recovery circuit
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JPH02206211A
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Ultra broad band signal discriminating circuit without matrix circuit
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JPH0243825A
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Transmission signal, split, cancel type single channel simultaneous bidirectional communication equipment
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JPS63178608A
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High fidelity negative feedback circuit used also for ultra broad band simultaneous two-way communication amplifier
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JPS6135666A
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Ultrawide band high balance signal discriminating circuit
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JPS60226224A
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Discriminating circuit of ultrawide band high balance signal
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JPS60189331A
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Superwide band high balance signal discriminating circuit
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JPS59183536A
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Ultra-broad band high balance signal discriminating circuit
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JPS5985137A
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Two-wire same channel bidirectional amplifier
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JPS58154938A
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Switching type 2-wire and 4-wire converting circuit
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JPS587906A
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Bi-directional amplifier
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JPS57190407A
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Bi-directional amplifier
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JPS5781735A
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Two-way amplifier
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