Transmission method and transmitter circuit
AssigneePanasonic Corporation
InventorMitsuru Tanabe
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AssigneePanasonic Corporation
InventorMitsuru Tanabe
Estimating the term…
An amplitude component of a modulating signal is detected, band-divided by first and second frequency selecting circuits, and an amplitude component of a high-frequency band is down-converted by a first frequency conversion circuit. An amplitude component selected by the first frequency selecting circuit and an amplitude component selected by the first frequency conversion circuit are amplified by first and second operational amplifiers, and a signal amplified by the second operational amplifier is up-converted by a second frequency conversion circuit to be restored to the initial frequency band. Output amplitudes of the first operational amplifier and a second frequency converter are added up by an adder to be direct-current converted. The amplitudes after the direct-current conversion are band-divided by third and fourth frequency selecting circuits, respectively, feedback amounts thereof are adjusted, and then fed back to the first and second operational amplifiers.
A transmission method of detecting an amplitude component from a modulating signal containing a phase component and said amplitude component, direct-current converting said amplitude component and frequency-converting said modulating signal to high frequency, generating a modulated wave by multiplying said direct-current converted amplitude component by said frequency-converted modulating signal, and correcting by feedback processing, a level of said amplitude component to be direct-current converted, the transmission method comprising the steps of:
A transmitter circuit comprising:
A transmitter circuit, comprising:
Dependencies are inferred from the claim text.