US 9,813,458 B2
Network interface device and method having passive operation mode and noise management
Paul Francis Bailey, Camillus, NY (US)
Assigned to PPC BROADBAND, INC., East Syracuse, NY (US)
Filed by PPC Broadband, Inc., East Syracuse, NY (US)
Filed on Oct. 17, 2013, as Appl. No. 14/56,566.
Claims priority of provisional application 61/714,930, filed on Oct. 17, 2012.
Prior Publication US 2014/0105221 A1, Apr. 17, 2014
Int. Cl. H04L 12/28 (2006.01); H04L 29/06 (2006.01); H04L 12/26 (2006.01); H04N 7/10 (2006.01)
CPC H04L 65/1069 (2013.01) [H04L 12/2801 (2013.01); H04L 12/2898 (2013.01); H04L 43/16 (2013.01); H04N 7/104 (2013.01)] 43 Claims
OG exemplary drawing
 
1. A network interface device comprising:
a signal splitter configured to separate a downstream signal into one of: (a) a passive branch signal and (b) an active branch signal;
an active branch circuit, wherein the active branch signal is transmittable through the active branch circuit to at least one active subscriber device;
an active branch circuit noise manager configured to: (a) detect an upstream signal transmitted from the least one active subscriber device and (b) establish a signal path for the detected upstream signal through the active branch circuit;
a passive branch circuit, wherein the passive branch signal is transmittable through the passive branch circuit to at least one passive subscriber device; and
a bypass circuit configured to:
in response to the active branch circuit noise manager being unpowered, switch the active branch signal to a bypass signal path that bypasses at least the active branch circuit noise manager so as to prevent the active branch signal from being transmitted to the active branch circuit noise manager, and
in response to the active branch circuit noise manager being powered, switch the active branch signal to an active signal path to the active branch circuit noise manager so as to allow the active branch signal to be transmitted to the active branch circuit noise manager.