US 11,809,141 B2
Time-to-digital converter using voltage as a representation of time offset
Kartik Sridharan, San Diego, CA (US); Jun Li, San Diego, CA (US); Eythan Familier, San Diego, CA (US); Gaurav Menon, San Marcos, CA (US); Shamsun Nahar, San Diego, CA (US); Akhil Garlapati, San Diego, CA (US); Scott Humphreys, Greensboro, NC (US); and Antonio Geremia, San Diego, CA (US)
Assigned to Anokiwave, Inc., San Diego, CA (US)
Filed by Anokiwave, Inc., San Diego, CA (US)
Filed on Mar. 1, 2022, as Appl. No. 17/683,928.
Claims priority of provisional application 63/155,376, filed on Mar. 2, 2021.
Prior Publication US 2022/0283550 A1, Sep. 8, 2022
Int. Cl. H03M 1/02 (2006.01); G04F 10/00 (2006.01)
CPC G04F 10/005 (2013.01) 18 Claims
OG exemplary drawing
 
1. A time-to-digital conversion system comprising:
a first circuitry configured to capture a time difference between two signals as a voltage; and
a second circuitry configured to produce a digital output value representative of the time difference between the two signals based on the voltage, wherein:
the first circuitry comprises a time-to-voltage converter circuit configured to output a voltage signal that is proportional to the time difference between the two signals and a voltage measurement circuit configured to output a voltage measurement value based on the voltage signal; and
the second circuitry comprises a mapping circuit configured to output a time value based on the voltage measurement value as the digital output value.