Invention Grant
- Patent Title: High resolution capture
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Application No.: US15274576Application Date: 2016-09-23
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Publication No.: US10177747B2Publication Date: 2019-01-08
- Inventor: Alexander Tessarolo , Saya Goud Langadi
- Applicant: Texas Instruments Incorporated
- Applicant Address: US TX Dallas
- Assignee: TEXAS INSTRUMENTS INCORPORATED
- Current Assignee: TEXAS INSTRUMENTS INCORPORATED
- Current Assignee Address: US TX Dallas
- Agent Gregory J. Albin; Charles A. Brill; Frank D. Cimino
- Main IPC: G01R23/02
- IPC: G01R23/02 ; H03K3/03 ; H03K5/159 ; H03K19/20

Abstract:
A high resolution capture circuit and integrated circuit chip are disclosed and include first and second capture delay lines and an oscillator delay line. The oscillator delay line includes N timing delay elements sequentially coupled in a ring to generate a first clock signal. The first and second capture delay lines each include M capture delay elements sequentially coupled to pass a received signal in a first direction along a first signal path and to pass a clock signal in a second direction opposite to the first direction along a second signal path. The first capture delay line uses the first clock signal and the second capture delay line uses an inverse of the first clock signal. Each capture delay element forms a flip-flop and provides a one-bit output. All delay elements have essentially identical timing and M is equal to either N or to N/2.
Public/Granted literature
- US20170149418A1 High Resolution Capture Public/Granted day:2017-05-25
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