Title:
TIME CODE DEMODULATION PROCESSING CIRCUIT AND METHOD
Document Type and Number:
WIPO Patent Application WO/2021/035697
Kind Code:
A1
Abstract:
A time code demodulation processing circuit and method. The circuit comprises: a sampling circuit for sampling a photon event of a reflected light beam detected by a pixel unit so as to form a sampling signal; a histogram memory for storing a histogram to be drawn including a plurality of histogram time units; a time code sequence control memory for storing a correlation between pre-written sampling signals and histogram time units needing to be started; and a time code sequence controller for controlling, according to the correlation stored in the time code sequence control memory, the sampling signal to enter a corresponding histogram time unit for superposition so as to draw the histogram. The circuit allows an emitter to emit a pulse string with a pulse period far lower than the maximum flight time corresponding to the maximum measurement range, such that a frame rate can be improved to a great extent.
Inventors:
WANG RUI (CN)
HE RAN (CN)
ZHU LIANG (CN)
YAN MIN (CN)
HE RAN (CN)
ZHU LIANG (CN)
YAN MIN (CN)
Application Number:
PCT/CN2019/103740
Publication Date:
March 04, 2021
Filing Date:
August 30, 2019
Export Citation:
Assignee:
ORADAR TECH COMPANY LIMITED (CN)
International Classes:
G01S17/89
Foreign References:
| CN103616696A | 2014-03-05 | |||
| CN107831486A | 2018-03-23 | |||
| CN103400366A | 2013-11-20 | |||
| US20170016981A1 | 2017-01-19 |
Attorney, Agent or Firm:
CHINA TRUER IP (CN)
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