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US 2025/0168045 A1Published application
Wifi operations using frequency shift keying
AssigneeThe Regents of the University of Michigan
InventorsKang G. SHIN, Hsun-Wei CHO
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AssigneeThe Regents of the University of Michigan
InventorsKang G. SHIN, Hsun-Wei CHO
Estimating the term…
A system includes a module configured to operate in accordance to a wireless protocol that is different than a WiFi protocol and emulate direct transmission and reception of WiFi signals to and from an unmodified WiFi device, without payload selection or precoding on the unmodified WiFi device. The module includes a receiver configured to receive, from the unmodified WiFi device, an unmodified first WiFi signal having an arbitrary data packet, and a transmitter configured to transmit, to the unmodified WiFi device, a second WiFi signal. The receiver includes a narrowband filter configured to extract portions of the spectrum of the unmodified first WiFi signal from the unmodified WiFi device, and a narrowband demodulator configured to convert the extracted portions of the unmodified first WiFi signal into a plurality of bits to allow the receiver to recover the data packet from the unmodified first WiFi signal.
A system comprising:
A receiver of a module configured to emulate direct reception of an unmodified WiFi signal from an unmodified WiFi device, the receiver comprising a narrowband filter and a narrowband demodulator, the receiver configured to operate in accordance to a wireless protocol different than a WiFi protocol and receive the unmodified WiFi signal having an arbitrary data packet from the unmodified WiFi device, without payload selection or precoding on the unmodified WiFi device, the narrowband filter configured to extract portions of the spectrum of the unmodified WiFi signal received from the unmodified WiFi device, and the narrowband demodulator configured to convert the extracted portions of the unmodified WiFi signal into a plurality of bits to allow the receiver to recover the arbitrary data packet from the unmodified WiFi signal.
A transmitter of a module configured to emulate direct transmission of a WiFi signal having a standard direct-sequence spread spectrum (DSSS) data packet to an unmodified WiFi device, the transmitter comprising at least one component configured to shift a phase of the transmitter based on a plurality of bits of the DSSS data packet, the transmitter configured to operate in accordance to a wireless protocol different than a WiFi protocol and transmit the WiFi signal having the DSSS data packet to the unmodified WiFi device.
Dependencies are inferred from the claim text.