Precision radio frequency delay device
AssigneeHoneywell International Inc.
InventorsSteven H. Thomas, Glen B. Backes, Timothy J. Reilly
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Abstract
A method of delaying propagation of a radio frequency (RF) signal through a circuit is described. The method comprises receiving data that represents a delay time interval, providing an RF signal when a start pulse triggers a memory device, initiating a count through the delay time interval based on receipt of a start pulse, and outputting the RF signal after the delay time interval has expired.
Claims14
A method of delaying propagation of a radio frequency (RF) signal through a circuit, said method comprising:
- receiving data that represents a delay time interval;
- providing the RF signal from a first phase lock loop frequency synthesizer to a second phase lock loop frequency synthesizer;
- initiating a count through the delay time interval based on receipt of a start pulse;
- and
- outputting the RF signal from the second phase lock loop frequency synthesizer after the delay time interval has expired.
A programmable radio frequency (RF) delay device comprising:
- a second phase lock loop frequency synthesizer comprising an input register and a reference input, said input register configured to receive data relating to a delay time interval;
- an RF signal source including a first phase lock loop frequency synthesizer;
- and
- a logic circuit configured to logically combine an output of said RF signal source and a start pulse to initiate a count through the delay time interval, an output of said logic circuit coupled to said reference input, said second phase lock loop frequency synthesizer providing an output of the RF signal when the count reaches the set delay time interval.
A delay device comprising:
- a second phase lock loop frequency synthesizer comprising an input register configured to receive data relating to a delay time interval and an output;
- and
- a logic circuit configured to logically combine a radio frequency signal source and a start pulse to initiate a count through the delay time interval, said radio frequency signal source including a first phase lock loop frequency synthesizer and a voltage controlled oscillator said second phase lock loop frequency synthesizer providing an RF signal at said output when the count reaches a value associated with the set delay time interval.
Dependencies are inferred from the claim text.