Electronic shelf label (ESL) efficient reconnect
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United States of America Patent
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Jan 17, 2023
Grant Date -
Sep 9, 2021
app pub date -
Dec 3, 2020
filing date -
Mar 3, 2020
priority date (Note) -
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status (Latency Note)
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Abstract
According to various aspects and techniques to enable methods and systems for a first communication device to determine an approximate number of other communication devices that have lost contact with a host communication device. This includes determining a common future time window using a last known global time stamp and determining a transmit time within the common future time window. This also includes receiving samples that are captured during the common future time window on a predefined communication channel, as well as analyzing the received samples to estimate the total number of other communication devices.
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