Patent ID: 11888548
Assignee: MASSACHUSETTS INSTITUTE OF TECHNOLOGY
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 11:
12. A communication system comprising:
(a) a device;
(b) a transmission medium; and
(c) a modem coupled between the device and the transmission medium, the modem configured to:
(c1) receive signals from the device and modulate the signals for transmission over the transmission medium with a spread spectrum chirp transmitter; and
(c2) receive modulated spread spectrum chirp signals propagating on the transmission medium, (i) frequency-demodulate frequency variations of the received spread spectrum chirp signals; (ii) integrate the frequency-demodulated spread spectrum chirp signals; (iii) compare the integrated and frequency-demodulated spread spectrum chirp signals with a reference level to recover binary data by obtaining a binary value of each data bit in the received modulated spread spectrum chirp signals; and provide the recovered binary data to the device; and
(c3) meet quasi-peak (QP) signal levels.