US 11,989,682 B2
Intelligent tracking system and methods and systems therefor
Dean Mamoru Kawaguchi, San Jose, CA (US); Alberto Vidal, San Jose, CA (US); Edward John Boling, Fremont, CA (US); Prasad Panchalan, San Jose, CA (US); Amit Lal, Ithaca, NY (US); Justin C. Kuo, Ithaca, NY (US); and Edward Maurice Farrell, Saratoga, CA (US)
Assigned to X Development LLC, Mountain View, CA (US)
Filed by X Development LLC, Mountain View, CA (US)
Filed on May 3, 2023, as Appl. No. 18/311,506.
Application 18/311,506 is a continuation of application No. 17/523,763, filed on Nov. 10, 2021, granted, now 11,715,060.
Application 17/523,763 is a continuation in part of application No. 16/889,414, filed on Jun. 1, 2020, granted, now 11,195,073, issued on Dec. 7, 2021.
Claims priority of provisional application 62/855,474, filed on May 31, 2019.
Prior Publication US 2023/0306360 A1, Sep. 28, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. G06Q 10/0833 (2023.01)
CPC G06Q 10/0833 (2013.01) 11 Claims
OG exemplary drawing
 
1. A tracking device comprising:
a first antenna that transmits response signals in a first frequency band; and
a transmission module that modulates a response signal for transmission in the first frequency band and outputs the modulated response signal to the first antenna for transmission in accordance with a communication protocol, the response signal including a message indicating a device identifier of the tracking device, wherein the transmission module includes a bulk acoustic wave reference oscillator that produces an output frequency, the bulk acoustic wave reference oscillator including a bulk acoustic wave delay reference, a time difference detector configured to detect an echo of the bulk acoustic wave delay reference, wherein the transmission module modulates the response signal such that the response signal has a carrier frequency based on the output frequency of the bulk acoustic wave reference oscillator.