公开(公告)号：US20220038312A1

公开(公告)日：2022-02-03

申请号：US17375043

申请日：2021-07-14

Applicant: Analog Devices, Inc.

Inventor： Manish J. Manglani ,  Christopher MAYER

IPC: H04L25/02

Abstract: Devices exchange control signals with each other to ensure proper operation of an overall system. For instance, in a communication system, a baseband processor and a transceiver communicate with each other to exchange information for controlling the respective signal processing parts of the baseband processor and the transceiver. While Serial Peripheral Interfaces (SPIs) can be used, SPI can be extremely slow, and does not provide a protocol for allowing a complex set of control signals to be exchanged between the baseband processor and transceiver. The present disclosure describes a fast control interface which can support various modes of operation in allowing two devices to communicate with each other quickly and effectively.

公开(公告)号：US20230370023A1

公开(公告)日：2023-11-16

申请号：US17948482

申请日：2022-09-20

Applicant: Analog Devices, Inc.

Inventor： Tao YU ,  Christopher MAYER

IPC: H03F1/32 ,  G05B13/02

CPC classification number: H03F1/3247 ,  G05B13/027

Abstract: Systems, devices, and methods related to envelope regulated, digital predistortion (DPD) are provided. An example apparatus includes an envelope regulator circuit to process, based on a parameterized model, an input signal to generate an envelope regulated signal; a digital predistortion (DPD) actuator circuit to process the envelope regulated signal and the input signal based on DPD coefficients associated with a nonlinearity characteristic of a nonlinear component; and a DPD adaptation circuit to update the DPD coefficients based on a feedback signal indicative of an output of the nonlinear component.