US 12,407,551 B2
Bidirectional data transmission over isolation medium
Tolga Dinc, Dallas, TX (US); Swaminathan Sankaran, Allen, TX (US); and Baher Haroun, Allen, TX (US)
Assigned to TEXAS INSTRUMENTS INCORPORATED, Dallas, TX (US)
Filed by TEXAS INSTRUMENTS INCORPORATED, Dallas, TX (US)
Filed on Jun. 26, 2023, as Appl. No. 18/341,482.
Prior Publication US 2024/0430147 A1, Dec. 26, 2024
Int. Cl. H04L 5/14 (2006.01); H04L 27/20 (2006.01); H04L 27/36 (2006.01)
CPC H04L 27/2071 (2013.01) [H04L 5/14 (2013.01); H04L 5/1415 (2013.01); H04L 5/143 (2013.01); H04L 27/362 (2013.01)] 21 Claims
OG exemplary drawing
 
1. An apparatus comprising:
a controller having differential modulation control outputs and including a programmable delay circuit, the controller configurable to provide differential modulation signals having a particular frequency at the differential modulation control outputs; and
a differential modulator circuit coupled between first differential terminals and second differential terminals, the differential modulator circuit having differential modulation control inputs coupled to the differential modulation control outputs, the differential modulator circuit configurable to:
modulate first differential signals at the first differential terminals with the differential modulation signals having the particular frequency;
provide the modulated first differential signals at the second differential terminals;
modulate second differential signals at the second differential terminals with the differential modulation signals having the particular frequency; and
provide the modulated second differential signals at the first differential terminals.