公开(公告)号：US11711084B2

公开(公告)日：2023-07-25

申请号：US17714081

申请日：2022-04-05

Applicant: Space Exploration Technologies Corp. ,  Iliana Ghazali

Inventor： David Francois Jacquet ,  Mostafa Ghazali ,  Masoud Kahrizi ,  Andras Tantos

IPC: H03L7/07 ,  H03L7/197

CPC classification number: H03L7/07 ,  H03L7/1976

Abstract: In an embodiment, an apparatus includes an integrated circuit (IC) chip configured to receive a timing signal and a reference clock signal. The IC chips is configured to a reference time signal based on the timing signal and the reference clock signal. The IC chip includes a phase lock loop (PLL). The PLL is synchronized based on the reference time signal.

公开(公告)号：US11431092B1

公开(公告)日：2022-08-30

申请号：US15931531

申请日：2020-05-13

Applicant: Space Exploration Technologies Corp.

Inventor： David Francois Jacquet ,  Marc Gens ,  Paul Lee Pearson ,  Pascal Triaire

IPC: H04B1/00 ,  H01Q3/26 ,  H01Q3/42 ,  H01Q3/38 ,  H04B17/19 ,  H04B17/12

Abstract: In an embodiment, a communications system includes a transmitter including a digital beamforming baseband section including a digital mixer, the digital beamforming section configured to receive an input signal to be transmitted, the input signal at a baseband frequency; and a modulation section electrically coupled to the digital beamforming baseband section, the modulation section including an up converter configured to receive a local oscillator signal at a local oscillator frequency. The digital mixer is configured to apply a baseband frequency shift to the input signal to generate a baseband frequency shifted input signal at a different frequency from the baseband frequency. The up converter is configured to up convert the baseband frequency shifted input signal based on the local oscillator signal to generate a modulated signal at a carrier frequency, wherein the local oscillator frequency is different from the carrier frequency.