US 12,170,549 B2
Heat diffuser in wrist worn wireless power and data system
Pratik Halyal, Chicago, IL (US); Michael Katz, Glen Ellyn, IL (US); and Mark Melone, Frankfort, IL (US)
Assigned to NuCurrent, Inc., Chicago, IL (US)
Filed by NuCurrent, Inc., Chicago, IL (US)
Filed on Oct. 8, 2021, as Appl. No. 17/497,353.
Prior Publication US 2023/0115141 A1, Apr. 13, 2023
Int. Cl. H04B 5/72 (2024.01); H02J 50/12 (2016.01); H02J 50/40 (2016.01); H04B 5/79 (2024.01); H04L 1/1607 (2023.01); H05K 7/20 (2006.01)
CPC H04B 5/79 (2024.01) [H02J 50/12 (2016.02); H02J 50/40 (2016.02); H04B 5/72 (2024.01); H04L 1/1607 (2013.01); H05K 7/2039 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A rechargeable wearable electronic device comprising:
a wireless power receiver system comprising:
at least one receiver antenna configured for inductive coupling with a transmitter antenna and receiving a transmission from the transmitter antenna, the at least one receiver antenna operating at an operating frequency;
a power conditioning system configured to receive the transmission from the at least one receiver antenna, convert the received transmission to a direct current (DC) power signal, and provide the DC power signal at least to a load associated with the wireless power receiver system; and
a receiver controller configured to:
to decode the transmission to extract a first data signal compliant with a wireless power and data transfer protocol and decode the first data signal compliant with the wireless power and data transfer protocol to extract a first asynchronous serial data signal,
encode a second asynchronous serial data signal as a second data signal compliant with the wireless power and data transfer protocol, and
selectively alter the power signal to encode the second data signal compliant with the wireless power and data transfer protocol into the power signal;
a device portion including a device housing containing an electronic circuitry module, which includes the wireless power receiver system and a rechargeable power source, wherein one or both of the wireless power receiver system and the rechargeable power source generates heat during wireless charging of the rechargeable power source; and
a band portion for attaching the rechargeable wearable electronic device to a user appendage, the band portion comprising a heat spreading layer of a thermally conductive material, the heat spreading layer having an inner portion within the device housing in thermal contact with the electronic circuitry module, to absorb heat from the electronic circuitry module and spread the absorbed heat to remaining portions of the heat spreading layer.