US 12,294,380 B2
Power saving encoding for isolated galvanically data transmission
Andreas Koch, Wiesbaden (DE); and George Pieter Reitsma, Redwood City, CA (US)
Assigned to Analog Devices International Unlimited Company, Limerick (IE)
Filed by Analog Devices International Unlimited Company, Limerick (IE)
Filed on Apr. 4, 2023, as Appl. No. 18/295,714.
Claims priority of provisional application 63/342,237, filed on May 16, 2022.
Prior Publication US 2023/0370076 A1, Nov. 16, 2023
Int. Cl. H03M 1/12 (2006.01); H03M 1/00 (2006.01); H03M 1/38 (2006.01)
CPC H03M 1/002 (2013.01) [H03M 1/38 (2013.01)] 24 Claims
OG exemplary drawing
 
1. A data channel comprising:
a power constrained first channel portion to receive energy from a limited power source; the first channel portion including:
an analog-to-digital converter (ADC) circuit to output an ADC data sample;
a first transmitter circuit configured to serially transmit data that includes ON bits and OFF bits, wherein the first transmitter circuit uses more energy transmitting the ON bits than the OFF bits; and
logic circuitry configured to derive transmit data from the ADC data sample, wherein the derived transmit data has a reduced number of the ON bits from the ADC data sample; and
a non-power constrained second channel portion to receive energy from a different power source than the first channel portion, the second channel portion including a first receiver circuit to receive the derived transmit data from the first transmitter circuit of the first channel portion.