Back to results
US 12,650,502 B2Granted
Electronic circuit for detecting an ultra-wideband pulse
AssigneeLegic Identsystems AG
InventorsMarkus Bingesser, Peter Plüss
Life of this patent
Estimating the term…
Abstract
An electronic circuit for detecting an ultra-wideband pulse, the electronic circuit comprising an analog input terminal configured for connection to an ultra-wideband antenna, a low noise amplifier connected to the analog input terminal and configured to amplify one or more ultra-wideband pulses received via the ultra-wideband antenna, and a comparator connected to the low noise amplifier and configured to generate a wake-up trigger signal for ultra-wideband pulses exceeding a pre-defined pulse amplitude threshold.
Claims17
An electronic circuit for detecting an ultra-wideband pulse, the electronic circuit comprising:
- an analog input terminal configured for connection to an ultra-wideband antenna;
- a low noise amplifier connected to the analog input terminal and configured to amplify one or more ultra-wideband pulses received via the ultra-wideband antenna;
- a comparator connected to the low noise amplifier and configured to generate a wake-up trigger signal for ultra-wideband pulses exceeding a pre-defined pulse amplitude threshold;
- and
- a correlator arranged upstream from the comparator and configured to multiply the one or more received ultra-wideband pulses with a template ultra-wideband waveform and integrate the one or more multiplied ultra-wideband pulses over a pre-defined correlation integration time period.
2 more elements
An electronic circuit for detecting an ultra-wideband pulse, the electronic circuit comprising:
- an analog input terminal configured for connection to an ultra-wideband antenna;
- a low noise amplifier connected to the analog input terminal and configured to amplify one or more ultra-wideband pulses received via the ultra-wideband antenna;
- a comparator connected to the low noise amplifier and configured to generate a wake-up trigger signal for ultra-wideband pulses exceeding a pre-defined pulse amplitude threshold;
- and
- a quadrature demodulator arranged downstream from the low noise amplifier, configured to determine an in-phase component and a quadrature component of the one or more ultra-wideband pulses.
2 more elements
An electronic circuit for detecting an ultra-wideband pulse, the electronic circuit comprising:
- an analog input terminal configured for connection to an ultra-wideband antenna;
- a low noise amplifier connected to the analog input terminal and configured to amplify one or more ultra-wideband pulses received via the ultra-wideband antenna;
- and
- a timing circuit connected to the low noise amplifier configured to:
- receive the one or more ultra-wideband pulses in response to a beacon pulse transmitted by the electronic circuit,
- determine, using a time difference between the reception of a particular ultra-wideband pulse and the transmission of the beacon pulse, a distance, and
- forward the particular ultra-wideband pulse only if the distance is less than a pre-defined proximity distance.
4 more elements
An electronic circuit for detecting an ultra-wideband pulse, the electronic circuit comprising:
- an analog input terminal configured for connection to an ultra-wideband antenna;
- a low noise amplifier connected to the analog input terminal and configured to amplify one or more ultra-wideband pulses received via the ultra-wideband antenna;
- a comparator connected to the low noise amplifier and configured to generate a wake-up trigger signal for ultra-wideband pulses exceeding a pre-defined pulse amplitude threshold;
- and
- a second analog input terminal configured for connecting a second ultra-wideband antenna, wherein the timing circuit is configured to:
- determine for a particular ultra-wideband pulse received from the two analog input terminals at least one of:
- a time difference in receiving the particular ultra-wideband pulse from the two analog input terminals or a phase difference of the particular ultra-wideband pulse received from the two analog input terminals, and
- forward the particular ultra-wideband pulse only if the time difference corresponds to a pre-determined time difference range or if the phase difference corresponds to a pre-determined phase difference range, respectively.
5 more elements
An electronic circuit for detecting an ultra-wideband pulse, the electronic circuit comprising:
- an analog input terminal configured for connection to an ultra-wideband antenna;
- a low noise amplifier connected to the analog input terminal and configured to amplify one or more ultra-wideband pulses received via the ultra-wideband antenna;
- a comparator connected to the low noise amplifier and configured to generate a wake-up trigger signal for ultra-wideband pulses exceeding a pre-defined pulse amplitude threshold;
- a plurality of analog input terminals configured for connecting to a plurality of ultra-wideband antennas, respectively;
- and
- a direction component configured to determine a transmission direction of the one or more ultra-wideband pulses depending on one or more of:
- a time of reception or a phase of the one or more ultra-wideband pulses, wherein the direction component is further configured to forward the one or more ultra-wideband pulses only if the determined transmission direction matches a pre-determined transmission direction.
4 more elements
An ultra-wideband reader comprising:
- an electronic circuit for detecting an ultra-wideband pulse, the electronic circuit comprising:
- an analog input terminal configured for connection to an ultra-wideband antenna,
- a low noise amplifier connected to the analog input terminal and configured to amplify one or more ultra-wideband pulses received via the ultra-wideband antenna, and
- a comparator connected to the low noise amplifier and configured to generate a wake-up trigger signal;
- a digital processing unit connected to the electronic circuit and configured to wake up upon receiving the wake-up trigger signal,
- wherein the electronic circuit comprises a timing circuit connected to the low noise amplifier configured to:
- receive the one or more ultra-wideband pulses in response to a beacon pulse transmitted by the electronic circuit,
- determine, using a time difference between the reception of a particular ultra-wideband pulse and the transmission of the beacon pulse, a distance, and
- forward the particular ultra-wideband pulse, for generating the wake-up trigger signal, only if the distance is less than a pre-defined proximity distance.
6 more elements
Dependencies are inferred from the claim text.