Double-sideband, suppressed-carrier, signal injection apparatus
Dual audio capture limiter squelch circuit
Dual channel downconverter for pulsed radio frequency...
Dual conversion FM receiver using phase locked direct conversion
Dual port FM demodulation in phase locked receivers
Dual speed squelch circuit and method
Electromagnetic wave receiver
Enhanced selectivity signal receiver
Fast squelch circuit and method
Feedforward and feedback control in a radio
Filter and demodulation circuit for filtering an intermediate fr
FM communication device with avoidance of interference by substa
FM communication system with improved response to rayleigh-faded
FM detector circuit
FM receiver
FM receiver
FM receiver
FM Receiver for general programs and special announcements
FM Receiver for reception of special announcements and general p
FM receiver having improved audio quality in response to Rayleig