Local area network for simultaneous, bi-directional transmission of video bandwidth signals, including a switching matrix which defines user connections, upstream connections, and downstream connections and has an efficient configuration to minimize the

Granted: Jul 16, 1996 Filed: Oct 20, 1993

This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.