US 11,923,804 B2
CMOS integrated temperature insensitive, stable, and calibrated oscillator
Amit Lal, Ithaca, NY (US); and Justin Kuo, Ithaca, NY (US)
Assigned to Geegah, LLC, Ithaca, NY (US)
Appl. No. 17/637,321
Filed by GEEGAH LLC, Ithaca, NY (US); Amit Lal, Ithaca, NY (US); and Justin Kuo, Ithaca, NY (US)
PCT Filed Aug. 21, 2020, PCT No. PCT/US2020/047468
§ 371(c)(1), (2) Date Feb. 22, 2022,
PCT Pub. No. WO2021/035166, PCT Pub. Date Feb. 25, 2021.
Claims priority of provisional application 62/889,887, filed on Aug. 21, 2019.
Prior Publication US 2022/0294390 A1, Sep. 15, 2022
Int. Cl. H03B 5/04 (2006.01); G01B 17/02 (2006.01); G01N 29/24 (2006.01); G01N 29/34 (2006.01); G01N 29/44 (2006.01); G04G 3/04 (2006.01); H03L 1/02 (2006.01)
CPC H03B 5/04 (2013.01) [G01B 17/02 (2013.01); G01N 29/2437 (2013.01); G01N 29/348 (2013.01); G01N 29/4409 (2013.01); G04G 3/04 (2013.01); H03L 1/022 (2013.01); H03L 1/028 (2013.01); G01N 2291/02854 (2013.01); G01N 2291/2697 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An oscillator with minimized dependence on temperature, comprising:
a voltage-controlled oscillator VCO generating a RF frequency, which is transmitted as a plurality of short pulses to a piezoelectric transducer;
a piezoelectric receiver spaced from the piezoelectric transducer and configured to receive the plurality of short pulses;
an RF envelope detector or RF mixer configured to convert the plurality of short pulses to an amplified signal; and
a comparator configured to digitize the amplified signal and add temperature-dependent and programmed fixed delays.