Successive approximation register based time-to-digital converter using a time difference amplifier

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United States of America Patent

PATENT NO 12107596
APP PUB NO 20240120935A1
SERIAL NO

17961845

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Abstract

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A successive approximation register based time-to-digital converter circuit with a time difference amplifier (TDA). A first TDA which applies a gain value to a time difference between a first signal edge and a first delayed signal edge to generate a first amplified time difference signal, which is feedback to the first TDA, a second TDA which applies a gain value to a time difference between a second signal edge and a second delayed signal edge to generate a second amplified time difference signal, which is feedback to the second TDA, and a finite state machine which sets another gain value, for a next step in a N step conversion until N steps are completed, in the first and the second TDAs based on a bit value from a previous step, wherein the bit value indicates, for a step, whether the first or second amplified time difference signal is ahead.

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Patent Owner(s)

Patent OwnerAddress
CIENA CORPORATION7035 RIDGE ROAD HANOVER MD 21076

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Aouini, Sadok Gatineau, CA 53 234
Ben-Hamida, Naim Nepean, CA 59 271
Safi-Harab, Mouna Montreal, CA 5 37
Shalmani, Soheyl Ziabakhsh Kanata, CA 12 32

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