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US 2004/0212358 A1Published application
Scanning rf receiver
AssigneeAudiotel International Ltd.
InventorsAndrew Barry Stephen, Steven J. Holmes, Keith Raymond Fuller
Life of this patent
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AssigneeAudiotel International Ltd.
InventorsAndrew Barry Stephen, Steven J. Holmes, Keith Raymond Fuller
Estimating the term…
A receiver for analysing input RF signals comprises a first stage (51-55a) which includes an input for receiving one or more RF signals for analysis and a first local oscillator (51) having an output comprising a first plurality of frequencies. The input is mixed with the local oscillator output in a first mixer (55a) to generate a first intermediate frequency spectrum output. A second stage (56-59) includes a second local oscillator (58) adapted to produce as output a sweep signal traversing a second plurality of frequencies and a second mixer (55b) for combining said second local oscillator output with said first intermediate frequency output to generate a second intermediate frequency output.
A receiver for analysing one or more input signals, comprising
A receiver for analysing one or more input signals, comprising a first stage including:
A method of operating a receiver for analysing one or more input signals, comprising the steps of:
Apparatus substantially as described herein with reference to the accompanying drawings.
A method substantially as described herein with reference to the accompanying drawings.
Dependencies are inferred from the claim text.