Patent ID: 8462003
Filing Date: 2013-06-11
Classification: H04B,H05B

Abstract:
1. A system for transmitting and receiving digital and analog signals across an isolator, comprising: a modulator; a transmitter operably connected to the modulator; a signal isolator operably connected to the modulator; a receiver operably connected to the isolator; a frequency discriminator operably connected to the receiver, and a filtering circuit operably connected to the receiver; wherein the modulator is configured to accept as inputs thereto an analog signal and a first digital signal having a first frequency, and the modulator is further configured to modulate the analog signal according to the first frequency and corresponding logic state of the first digital signal to form a frequency-modulated (FM) signal as an output therefrom to the transmitter, the transmitter being configured to encode and transmit the FM signal to the isolator for conveyance thereacross to the receiver as an input thereto, the receiver providing the received FM signal to the frequency discriminator and the filtering circuit, the frequency discriminator being configured to decode the FM signal and provide a reconstructed first digital signal as an output therefrom, the filtering circuit being configured to filter the FM signal and provide the analog signal as an output therefrom.