Patent ID: 11916679
Assignee: SILICON LABORATORIES INC.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 9:
10. A Bluetooth transmitter configured to generate a modified baseband Bluetooth transmit packet from an original baseband Bluetooth transmit packet comprising a preamble part, header part, and payload part, the original baseband Bluetooth transmit packet having a time domain form x(t), the modified transmit packet being x(t)*e−2π(w(mod(t,k)t))/Fs, where
mod(t,k) is a modification function applied to the header part and the payload part, and mod(t,k) is selected to reduce a spectral peak in the modified transmit packet caused by repetition coding in the header part and payload part compared to using a mod(t,k) with value unity;
where mod(t,k) reducing the spectral peak is a continuous function resulting in a frequency change of less than 10 Khz and without causing abrupt frequency changes in the modified baseband Bluetooth transmit packet; and
Fs is approximately 8 Mhz.