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Audio signal switcher
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Coaxial switch controller
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Digital television emission system
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Multi-stage intelligent broadcast control system
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Visible light communication system
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Cross-platform compatible emergency intelligent broadcasting system controller
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Digital television emission managing system
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Vehicle-mounted digital television receiver
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Optical workstation of digital television
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Intelligent receiving terminal
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Self-adapting vehicle-mounted digital television receiver
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Intelligent emergency broadcast system
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Radio transceiving system
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Method for controlling intelligent electrical appliance
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1+1 main emission system and backup emission system controller
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Radio transceiver
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Controller of N+1 digital television transmitting device
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Waterway radio monitoring device
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