H04B2201/7163

Intermittent UWB receiver

A UWB impulse receiver including an RF stage followed by a baseband processing stage. The baseband processing stage includes a Rake filter including a plurality of time fingers, each finger including an integrator of the baseband signal during an acquisition window, a control module, and a detection module estimating the received symbols from the integration results. During a synchronization phase, the control module drives respective positions of the acquisition windows associated with the different fingers, to scan at a reception interval, the RF stage only operating, in a course of the synchronization phase, during the plurality of acquisition windows.

Signal transmitters with size-reduced on-chip memory
11843413 · 2023-12-12 · ·

A signal transmitter may include a waveform synthesis circuit and a signal transmission circuit. The waveform synthesis circuit may store values of a reference waveform for a selected channel of the signal transmitter, and use the stored values to generate values of reference waveforms for one or more other channels of the signal transmitter. The waveform synthesis circuit may further include a sampling boost circuit to generate one or more additional values for the reference waveforms. The waveform transmission circuit may generate signals for the channels of the signal transmitter based at least in part on the values of the reference waveforms, and transmit the signals via one or more antennas.

Signal Transmitters with Size-Reduced On-Chip Memory
20240137067 · 2024-04-25 · ·

A signal transmitter may include a waveform synthesis circuit and a signal transmission circuit. The waveform synthesis circuit may store values of a reference waveform for a selected channel of the signal transmitter, and use the stored values to generate values of reference waveforms for one or more other channels of the signal transmitter. The waveform synthesis circuit may further include a sampling boost circuit to generate one or more additional values for the reference waveforms. The waveform transmission circuit may generate signals for the channels of the signal transmitter based at least in part on the values of the reference waveforms, and transmit the signals via one or more antennas.

Signal Transmitters with Size-Reduced On-Chip Memory
20240235607 · 2024-07-11 · ·

A signal transmitter may include a waveform synthesis circuit and a signal transmission circuit. The waveform synthesis circuit may store values of a reference waveform for a selected channel of the signal transmitter, and use the stored values to generate values of reference waveforms for one or more other channels of the signal transmitter. The waveform synthesis circuit may further include a sampling boost circuit to generate one or more additional values for the reference waveforms. The waveform transmission circuit may generate signals for the channels of the signal transmitter based at least in part on the values of the reference waveforms, and transmit the signals via one or more antennas.

RECEIVER
20250055500 · 2025-02-13 · ·

A differential transceiver circuit coupled to a single antenna interface, the transceiver circuit comprising: a differential pair of signal paths, comprising a first signal path and a second signal path; differential amplifier, having an input arranged to receive a receive signal from the antenna interface; a differential transmitter arranged to generate a differential pair comprising a first transmit signal connected to the first signal path and a second transmit signal connected to the second signal path; a switching network arranged to divert the amplifier output on the second signal path to a signal ground node. The receive signal on one signal path is diverted to ground. The transmit signal corresponding to the other differential signal path is inserted so that the same transmit signal is present on both differential signal paths. When processed by differential downstream components with high common-mode rejection, the transmit signals cancel out.