Signal characteristic-based leading edge detection
First Claim
1. A method of leading edge detection, comprising:
- receiving a signal;
determining at least one characteristic of the received signal;
determining a plurality of distinct thresholds based on the at least one characteristic;
receiving a subsequent signal;
sampling the subsequent signal based on the plurality of distinct thresholds to generate a plurality of sampled signals, respectively;
combining the sampled signals to generate a signal reconstruction of the subsequent signal;
identifying a leading edge of the subsequent signal based on the signal reconstruction.
1 Assignment
0 Petitions
Accused Products
Abstract
In a signal-based gain control scheme, one or more gain levels used for processing signals are selected based on characteristics of previously received signals. For example, different gain levels may be used to receive sets of signals whereupon certain characteristics of the received sets of signals are determined. One or more gain levels are then selected based on these characteristics whereby another signal is processed based on the selected gain level(s). In some aspects, the signal-based gain control scheme may be employed to facilitate two-way ranging operations between two devices. For example, leading edge detection may involve determining a characteristic of a received signal, determining a threshold based on the characteristic, and identifying a leading edge associated with the received signal based on the threshold. In some aspects, the signal-based gain control scheme may be employed in an ultra-low power pulse-based communication system (e.g., in ultra-wideband communication devices).
-
Citations
37 Claims
-
1. A method of leading edge detection, comprising:
-
receiving a signal; determining at least one characteristic of the received signal; determining a plurality of distinct thresholds based on the at least one characteristic; receiving a subsequent signal; sampling the subsequent signal based on the plurality of distinct thresholds to generate a plurality of sampled signals, respectively; combining the sampled signals to generate a signal reconstruction of the subsequent signal; identifying a leading edge of the subsequent signal based on the signal reconstruction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
-
12. An apparatus for leading edge detection, comprising:
-
a receiver configured to receive a signal and a subsequent signal; a characteristic determiner configured to determine at least one characteristic of the received signal; a threshold determiner configured to determine a plurality of distinct thresholds based on the at least one characteristic; a signal reconstructor configured to sample the subsequent signal based on the plurality of distinct thresholds to generate respective sampled signals, and to combine the sampled signals to generate a signal reconstruction of the subsequent signal; a leading edge identifier configured to identify a leading edge of the subsequent signal based on the signal reconstruction. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
-
-
23. An apparatus for leading edge detection, comprising:
-
means for receiving a signal and a subsequent signal; means for determining at least one characteristic of the received signal; means for determining a plurality of distinct thresholds based on the at least one characteristic; means for generating a signal reconstruction of the subsequent signal, wherein the signal reconstruction means is configured to sample the subsequent signal based on the plurality of distinct thresholds to generate a plurality of sampled signals, and combine the sampled signals to generate the signal reconstruction; and means for identifying a leading edge of the subsequent signal based on the signal reconstruction. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
-
-
34. A computer-program product for leading edge detection, comprising:
computer-readable storage device comprising codes executable to; receive a signal; determine at least one characteristic of the received signal; determine a plurality of distinct thresholds based on the at least one characteristic; receive a subsequent signal; sample the subsequent signal based on the plurality of distinct thresholds to generate a plurality of sampled signals, respectively; combine the sampled signals to generate a signal reconstruction of the subsequent signal; and identify a leading edge of the subsequent signal based on the signal reconstruction.
-
35. A headset, comprising:
-
a receiver configured to receive a signal and a subsequent signal; a characteristic determiner configured to determine at least one characteristic of the received signal; a threshold determiner configured to determine a plurality of distinct thresholds based on the at least one characteristic; a signal reconstructor configured to sample the subsequent signal based on the plurality of distinct thresholds to generate respective sampled signals, and to combine the sampled signals to generate a signal reconstruction of the subsequent signal; a leading edge identifier configured to identify a leading edge of the subsequent signal based on the signal reconstruction; and a transducer configured to provide an audio output as a result of the identification of the leading edge.
-
-
36. A watch, comprising:
-
a receiver configured to receive a signal and a subsequent signal; a characteristic determiner configured to determine at least one characteristic of the received signal; a threshold determiner configured to determine a plurality of distinct thresholds based on the at least one characteristic; a signal reconstructor configured to sample the subsequent signal based on the plurality of distinct thresholds to generate respective sampled signals, and to combine the sampled signals to generate a signal reconstruction of the subsequent signal; a leading edge identifier configured to identify a leading edge of the subsequent signal based on the signal reconstruction; and a user interface configured to provide an indication as a result of the identification of the leading edge.
-
-
37. A sensing device, comprising:
-
a receiver configured to receive a signal and a subsequent signal; a characteristic determiner configured to determine at least one characteristic of the received signal; a threshold determiner configured to determine a plurality of distinct thresholds based on the at least one characteristic; a signal reconstructor configured to sample the subsequent signal based on the plurality of distinct thresholds to generate respective sampled signals, and to combine the sampled signals to generate a signal reconstruction of the subsequent signal; a leading edge identifier configured to identify a leading edge of the subsequent signal based on the signal reconstruction; and a sensor configured to provide data for transmission as a result of the identification of the leading edge.
-
Specification