Discrete digital receiver
AssigneeBroadcom Corporation
InventorsAhmadreza (Reza) Rofougaran, Hooman Darabi
Life of this patent
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Abstract
A receiver includes a bandpass filter module, a sample and hold module, a discrete time filter module, and a conversion module. The bandpass filter module is operable to filter an inbound wireless signal to produce a filtered inbound wireless signal having a bandwidth. The sample and hold module is operable to sample and hold, at a rate corresponding to a multiple of the bandwidth of the filtered inbound wireless signal, the filtered inbound wireless signal to produce a frequency domain sample pulse train. The discrete time filter module is operable to filter the frequency domain sample pulse train to produce a filtered sample pulse. The conversion module is operable to convert the filtered sample pulse into an inbound baseband signal.
Claims18
A receiver comprises:
- a bandpass filter module configured to filter an inbound wireless signal to produce a filtered inbound wireless signal having a bandwidth, the bandpass filter module including a plurality of baseband impedance units that provide a baseband filter response and a switching network to operate at a rate corresponding to a frequency of the inbound wireless signal to frequency translate the baseband filter response to a wireless frequency bandpass filter response;
- a sample and hold module configured to sample and hold, at a rate corresponding to a multiple of the bandwidth of the filtered inbound wireless signal, the filtered inbound wireless signal to produce a frequency domain sample pulse train;
- a discrete time filter module configured to filter the frequency domain sample pulse train to produce a filtered sample pulse;
- and
- a conversion module configured to convert the filtered sample pulse into an inbound baseband signal.
A receiver comprises:
- a bandpass filter module configured to filter an inbound wireless signal to produce a filtered inbound wireless signal having a bandwidth, the bandpass filter module including a plurality of baseband impedance units that provide a baseband filter response and a switching network to operate at a rate corresponding to a frequency of the inbound wireless signal to frequency translate the baseband filter response to a wireless frequency bandpass filter response;
- a sample and hold module configured to sample and hold, at a rate corresponding to a multiple of the bandwidth of the filtered inbound wireless signal, the filtered inbound wireless signal to produce a frequency domain sample pulse train;
- a discrete time filter module having a baseband bandpass filter response configured to filter the frequency domain sample pulse train to produce a filtered baseband sample pulse;
- and
- an analog to digital conversion module configured to convert the filtered baseband sample pulse into an inbound baseband signal.
A transceiver comprises:
- a receiver section of the transceiver for receiving that includes:
- a bandpass filter module configured to filter an inbound wireless signal to produce a filtered inbound wireless signal having a bandwidth;
- a receive sample and hold module configured to sample and hold, at a rate corresponding to a multiple of the bandwidth of the filtered inbound wireless signal, the filtered inbound wireless signal to produce a receive frequency domain sample pulse train;
- a receive discrete time filter module configured to filter the receive frequency domain sample pulse train to produce a filtered sample pulse;
- and
- a receive conversion module configured to convert the filtered sample pulse into an inbound baseband signal;
- and
- a transmitter section of the transceiver for transmitting that includes:
- a transmit conversion module configured to convert an outbound baseband signal into an outbound frequency domain pulse that has a bandwidth;
- a transmit sample and hold module configured to sample and hold, at a rate corresponding to a multiple of the bandwidth of the outbound frequency domain pulse, the outbound frequency domain pulse to produce a transmit frequency domain sample pulse train;
- and
- a transmit discrete time filter module having a wireless frequency bandpass filter response configured to filter the transmit frequency domain sample pulse train to produce an outbound wireless signal.
Dependencies are inferred from the claim text.