US 9,813,111 B2
Phantom mode datastream transmission
German Stefan Otto Feyh, Boulder, CO (US); and Kishore Kota, Aliso Viejo, CA (US)
Assigned to Avago Technologies General IP (Singapore) Pte. Ltd., Singapore (SG)
Filed by AVAGO TECHNOLOGIES GENERAL IP (SINGAPORE) PTE. LTD., Singapore (SG)
Filed on Feb. 8, 2016, as Appl. No. 15/18,511.
Claims priority of provisional application 62/260,598, filed on Nov. 29, 2015.
Prior Publication US 2017/0155424 A1, Jun. 1, 2017
Int. Cl. H04B 3/04 (2006.01); H04L 25/03 (2006.01)
CPC H04B 3/04 (2013.01) [H04L 25/03 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A device comprising:
modulator circuitry coupled to a data cable, the data cable comprising a shielded wire pair, the modulator circuitry configured to:
transmit a differential signal carrying a first datastream over a differential mode of the shielded wire pair,
transmit a common mode signal carrying a second datastream over a common mode of the shielded wire pair, and
receive a return signal for the common mode signal over shielding of the shielded wire pair;
baseband circuitry coupled to the modulator circuitry, the baseband circuitry configured to provide the first and second datastreams to the modulator circuitry; and
equalizer circuitry configured to identify a degraded transmission region within a transmission spectrum of the common mode of the shielded wire pair.