Patent · US Active

Zero-cross-pre-distortion (ZCPD) algorithm for DTC based polar DTx

US10027356B2 · kind B2 · utility

1Cited by

0References

17Claims

0Family size

Assignee

Intel IP Corporation · US

Inventors

Elan Banin · Raanana, IL
Uri Parker · Shimshit, IL
Ofir Degani · Haifa, IL
Michael Kerner · Netanya, IL

Key dates

Filing date	Sep 23, 2016
Grant date	Jul 17, 2018
Priority date	—
Expiry date	Sep 23, 2036

Classification

Technology area (CPC H)Electricity
CPC primaryH04L27/367
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

Abstract

Devices and methods of compensating for a bandpass filter are generally described. A DTx includes a BPF from which an output signal is produced and a DFE having a zero crossing (ZC) pre-distorter (ZCPD). The ZCPD compensates for ZC distortion from a desired analog signal caused by the BPF. The ZCPD adjusts a DTC code word to generate a DTx output signal to be applied to the BPF. The compensation is dependent on a magnitude of the square wave immediately prior to and after the ZC. The compensated DTC and a DPA code word are used to generate the DTx output signal. The compensation produced by the ZCPD is free from compensation for non-linear responses to the DTC and DPA code words.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.