US 12,231,171 B2
Electronic devices with high frequency symbol generation
Bertram R Gunzelmann, Koenigsbrunn (DE); and Ramin Khayatzadeh, Munich (DE)
Assigned to Apple Inc., Cupertino, CA (US)
Filed by Apple Inc., Cupertino, CA (US)
Filed on Aug. 25, 2022, as Appl. No. 17/895,860.
Prior Publication US 2024/0072905 A1, Feb. 29, 2024
Int. Cl. H04B 10/548 (2013.01); H04B 10/2575 (2013.01); H04J 14/02 (2006.01); H04L 27/26 (2006.01)
CPC H04B 10/548 (2013.01) [H04B 10/25759 (2013.01); H04J 14/0298 (2013.01); H04L 27/2697 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An electronic device comprising:
one or more processors configured to generate a first electrical symbol and a second electrical symbol;
one or more light sources configured to generate an optical signal having a first carrier at a first frequency and a second carrier at a second frequency different from the first frequency;
a first modulator configured to generate a first optical symbol by modulating the first carrier of the optical signal using the first electrical symbol;
a second modulator configured to generate a second optical symbol by modulating the second carrier of the optical signal using the second electrical symbol;
an antenna configured to transmit a radio-frequency signal generated based on the first optical symbol and the second optical symbol;
a first optical phase shifter that is external to the first modulator, that is coupled between the first modulator and the antenna, and that is configured to apply a first optical phase shift to the first optical symbol; and
a second optical phase shifter that is external to the second modulator, that is coupled between the second modulator and the antenna, and that is configured to apply a second optical phase shift to the second optical symbol.