Patent ID: 6462851
Filing Date: 2002-10-08
Classification: H04B,H04L,H04N

Abstract:
In an HFC communications system, a method for transmitting signal information, comprising the steps of:receiving a first analog signal in a predetermined portion of a frequency band, the analog signal having a first bandwidth; digitizing the first analog signal to produce a digital signal by sampling at a frequency greater than twice the first bandwidth, the digital signal including data in the form of digital words; transmitting the digital signal over an optical fiber; receiving the digital signal; interleaving a predetermined number of words between each word in the digital signal to create an interleaved digital signal; and converting the interleaved digital signal to a second analog signal, the analog signal including a plurality of aliases of the first analog signal, one of the plurality of aliases corresponding to the predetermined portion of the frequency band containing the first analog signal; wherein the predetermined number of interleaved words is chosen such that the amplitude of the alias corresponding to the predetermined portion of the frequency band containing the first analog signal is sufficient to extract the signal information.