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Differential signal squelch detection circuit and method

Telecommunications – Receiver or analog modulated signal frequency converter – Squelch
Reexamination Certificate

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Differential signal strength detector

Telecommunications – Receiver or analog modulated signal frequency converter – Measuring or testing of receiver
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Differential voltage control oscillator including...

Telecommunications – Receiver or analog modulated signal frequency converter – Local control of receiver operation
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Digital audio receiver with reduced AM interference

Telecommunications – Receiver or analog modulated signal frequency converter – Noise or interference elimination
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Digital audio/visual receiver with recordable memory

Telecommunications – Receiver or analog modulated signal frequency converter – Signal selection based on frequency
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Digital automatic fine tuning method and apparatus

Telecommunications – Receiver or analog modulated signal frequency converter – Signal selection based on frequency
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Digital automatic frequency control with tracking

Telecommunications – Receiver or analog modulated signal frequency converter – Signal selection based on frequency
Patent

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Digital automatic gain control

Telecommunications – Receiver or analog modulated signal frequency converter – Local control of receiver operation
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Digital automatic gain control for transceiver devices

Telecommunications – Receiver or analog modulated signal frequency converter – Local control of receiver operation
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Digital automatic gain control with parallel/serial...

Telecommunications – Receiver or analog modulated signal frequency converter – Local control of receiver operation
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Digital automobile telephone having adjustable receiving period

Telecommunications – Receiver or analog modulated signal frequency converter – With particular receiver circuit
Patent

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Digital baseband receiver in a multi-carrier power amplifier

Telecommunications – Receiver or analog modulated signal frequency converter – Signal selection based on frequency
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Digital baseband receiver with DC discharge and gain control...

Telecommunications – Receiver or analog modulated signal frequency converter – Local control of receiver operation
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Digital beam forming for communications systems

Telecommunications – Receiver or analog modulated signal frequency converter – Local control of receiver operation
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Digital broadcast receiver

Telecommunications – Receiver or analog modulated signal frequency converter – Signal selection based on frequency
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Digital broadcast receiving apparatus

Telecommunications – Receiver or analog modulated signal frequency converter – Local control of receiver operation
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Digital broadcast/analog broadcast receiving apparatus

Telecommunications – Receiver or analog modulated signal frequency converter – Signal selection based on frequency
Reexamination Certificate

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Digital calibration of a transceiver

Telecommunications – Receiver or analog modulated signal frequency converter – Measuring or testing of receiver
Patent

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Digital carrier-recovery scheme for FM stereo detection

Telecommunications – Receiver or analog modulated signal frequency converter – Frequency or phase modulation
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Digital carrier-recovery scheme for FM stereo detection

Telecommunications – Receiver or analog modulated signal frequency converter – Frequency or phase modulation
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