US 12,237,855 B2
Error value magnitude detector for wireless transmitter
Andrea Camuffo, Munich (DE)
Assigned to Apple Inc., Cupertino, CA (US)
Filed by Apple Inc., Cupertino, CA (US)
Filed on Apr. 26, 2022, as Appl. No. 17/729,229.
Claims priority of provisional application 63/247,025, filed on Sep. 22, 2021.
Prior Publication US 2023/0085876 A1, Mar. 23, 2023
Int. Cl. H04B 1/04 (2006.01)
CPC H04B 1/0458 (2013.01) [H04B 1/0475 (2013.01); H04B 2001/0408 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A transmitter, comprising:
an amplifier;
a digital power meter coupled to an input of the amplifier;
an output power detector coupled to an output of the amplifier, the output power detector comprising an attenuator, a wideband detector coupled to the attenuator, and a peak-hold detector coupled in parallel with a low-pass filter to the wideband detector; and
control circuitry coupled to the digital power meter, the output power detector, and the amplifier.