Active frequency separating circuit

AM-FM combined stereo receiver

AM-FM combined stereo receiver

Apparatus and method for converting a signal from a first...

Architecture for an AM/FM digital intermediate frequency radio

Broadcasting signal receiving apparatus and pulse counting demod

Caller identification displayed on a personal computer

Converting capacitance to inductance in a floating resonant

Electronic switching for AM-FM radio

Electronic tuning type radio receivers

FM resonant filter having AM frequency bypass

Integrated AM-FM mixer

Matching transformer for dual-band radio receiver

Method and an apparatus for processing an audio signal

Method and apparatus for reducing FM intrusion in AM receivers

Method and apparatus to intelligently perform scanning and...

Microcomputer-based carrier detection system for a cordless tele

Multi-band FM receiver for receiving FM broadcasting signals and

Multi-channel signal processing circuit formed in a semiconducto

Radio monitoring apparatus and procedures