| 摘要 |
<p>A hybrid, bi-directional, analog/digital WDM access network system, for transmitting/receiving a wavelength of analog signals and a plurality of wavelengths of digital signals which are communicated between a network and a plurality of users, includes a feeder/de/multiplexer for converting the wavelength of analog signals into electrical signals and de/multiplexing the wavelengths of digital signals into a plurality of one-wavelength of digital signals; a plurality of mini-digital optical nodes connecting individually to the feeder/de/multiplexer via a plurality of optic fibers, respectively, each of the mini-digital optical nodes converting one of the one-wavelength of digital signals into electrical signals; and wherein the analog and digital converted electrical signals are transmitted to the user. A method of downstream transmission from the network to the users and a method of upstream transmission from the users to the network includes steps of communicating the signals among the feeder/de/multiplexer, mini-digital nodes, optic fibers, a coax cable and/or a digital line.</p> |
