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 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.