Method and apparatus for modulating a radio signal using...

Details Method and apparatus for modulating a radio signal using... Method and apparatus for modulating a radio signal using...

2001-06-13

2010-02-02

Maung, Nay A (Department: 2618)

Telecommunications

Transmitter

Power control, power supply, or bias voltage supply

C455S127500, C375S297000, C375S306000, C375S312000

Reexamination Certificate

active

07657238

ABSTRACT:
A transmitter for modulating an RF carrier signal with an input digital data stream is disclosed. The transmitter has a processor for generating digital phase and digital amplitude signals which characterise the input digital data stream, a signal generator for generating an RF carrier signal with a phase property defined by the generated digital phase signal, an amplifier arranged to receive the RF carrier signal as an input, and a bi-level switching circuit responsive to the generated digital amplitude signal to switch between the two levels to generate a voltage signal for supplying power to the amplifier.

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Kahn, L., “Single-Sideband Transmission by Envelope Elimination and Restoration,” Proc. IRE, Jul. 1952, pp. 803-806.

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