Patent ID: 7099588
Filing Date: 2006-08-29
Classification: H04B

Abstract:
1. In a communications system for transmitting RF signals that are represented as an analog waveform, the RF signals including video and data carrier signals, the communications system including optical transmitters for receiving the RF signals and for transmitting optical RF signals to optical receivers via an optical link, the optical transmitter comprising: an oscillator for providing dithering tones, wherein the dithering tones are combined with the received RF signals prior to providing the optical RF signals; a sync pulse discrimination circuit for receiving a portion of the received RF signals, for detecting the presence of at least one video carrier signal included in the received RF signals, and for providing an enable signal in accordance with the presence of the at least one video carrier signal, wherein with the detection of the at least one video carrier signal, the enable signal disables the oscillator.