Digitaler Funksender und Datenübertragungsverfahren

Details

Veröffentlichungs-Nr.

EP4757192

Anmeldetag

3. Dezember 2024

Veröffentlichung

10. Juni 2026

Rechtsraum

EP

Abstract

A chirp-based spread spectrum digital radio transmitter configured to suppress or attenuate discontinuities in the chirp frequency profile with an interpolation or smoothing procedure. The interpolation reduces significantly out-of-band emissions and does not affect the demodulation and decoding. In the case of a LoRa communication, the inventive transmitter has low constellation error and can communicate with legacy unmodified receivers. The process does not introduce unwanted phase shifts and can be used to control the signal's phase, also on continuous segments of the chirp to insert an arbitrary phase shift.

Anmelder

Firma

Semtech Corporation

Land

🇺🇸 USA