US 12,081,220 B2
Clock synthesis, distribution, and modulation techniques
Ahmad Sharkia, Vancouver (CA); Sudip Shekhar, Vancouver (CA); and Shahriar Mirabbasi, Vancouver (CA)
Assigned to The University of British Columbia, (CA)
Appl. No. 17/800,876
Filed by The University of British Columbia, Vancouver (CA)
PCT Filed Feb. 23, 2021, PCT No. PCT/CA2021/050209
§ 371(c)(1), (2) Date Aug. 18, 2022,
PCT Pub. No. WO2021/168552, PCT Pub. Date Sep. 2, 2021.
Claims priority of provisional application 62/980,612, filed on Feb. 24, 2020.
Prior Publication US 2023/0093490 A1, Mar. 23, 2023
Int. Cl. H03K 5/14 (2014.01); H03K 4/08 (2006.01); H03K 21/08 (2006.01); H03K 5/00 (2006.01)
CPC H03K 5/14 (2013.01) [H03K 4/08 (2013.01); H03K 21/08 (2013.01); H03K 2005/00019 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A frequency shifter, comprising:
a multiplexer to receive a multi-phase signal, to sequentially switch between input phases, and to generate a multiplexer output signal; and
an analog controlled delay element coupled to the multiplexer, the analog controlled delay element to receive the multiplexer output signal and to have a linear continuously adjusted delay to compensate for timing errors caused by the multiplexer.