Delta Modulated Low-Power EHF Communication Link

摘要

A system for communicating modulated EHF signals may include a modulation circuit responsive to a bi-level transmit information signal for generating a transmit output signal. The transmit output signal may have an EHF frequency when the transmit information signal is at a first information state and may be suppressed when the transmit information signal is at a second information state. A transmit transducer operatively coupled to the modulation circuit may be responsive to the transmit output signal for converting the transmit output signal into an electromagnetic signal.

主权项

1. A system comprising:
an edge detector having an input coupled to receive an input signal and having an output that generates a transmit information signal, the transmit information signal including an edge-indicating pulse generated when the input signal transitions from a first state to a second state, the edge-indicating pulse having a duration less than the bit period time of the data input signal; a modulator having an input to receive the transmit information signal from the edge detector and having an output that generates a transmit output signal having a first output level when the transmit information signal is in a first state, and having a second output level when the transmit information signal is in a second state; and a transmit transducer coupled to receive the output of the modulator and having an output to generate a modulated electromagnetic signal including a first pulse when the transmit output signal transitions from the second state to the first state, and to generate a second pulse when the transmit output signal transitions from the first state to the second state.