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1. WO2021042103 - FAST INITIAL PHASE SEARCH FOR DIGITAL CLOCK AND DATA RECOVERY AND RELATED SYSTEMS, DEVICES, AND METHODS

Publication Number WO/2021/042103
Publication Date 04.03.2021
International Application No. PCT/US2020/070346
International Filing Date 31.07.2020
IPC
H04L 7/033 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
7Arrangements for synchronising receiver with transmitter
02Speed or phase control by the received code signals, the signals containing no special synchronisation information
033using the transitions of the received signal to control the phase of the synchronising-signal- generating means, e.g. using a phase-locked loop
CPC
H04L 7/00
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
7Arrangements for synchronising receiver with transmitter
H04L 7/0008
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
7Arrangements for synchronising receiver with transmitter
0008Synchronisation information channels, e.g. clock distribution lines
H04L 7/02
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
7Arrangements for synchronising receiver with transmitter
02Speed or phase control by the received code signals, the signals containing no special synchronisation information
H04L 7/0337
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
7Arrangements for synchronising receiver with transmitter
02Speed or phase control by the received code signals, the signals containing no special synchronisation information
033using the transitions of the received signal to control the phase of the synchronising-signal-generating means, e.g. using a phase-locked loop
0337Selecting between two or more discretely delayed clocks or selecting between two or more discretely delayed received code signals
Applicants
  • MICROCHIP TECHNOLOGY INCORPORATED [US]/[US]
Inventors
  • YU, Jiachi
  • CHEN, Dixon
  • YANG, Kevin
Agents
  • BOOTH, Brett C.
  • BACA, Andrew J.
  • BEZDJIAN, Daniel J.
  • FARNSWORTH, Logan J.
  • FLORES, Jesse M.
  • GUNN, J. Jeffrey
  • HAMER, Katherine A.
  • JONES, Terry S.
  • MITCHELL, Debra L.
  • NIXON, Jason P.
  • SCHIERMAN, Elizabeth Herbst
  • WALKOWSKI, Joseph A.
  • WATSON, James C.
  • WOODHOUSE, Kyle M.
  • WRIGHT, W. James
Priority Data
16/588,62130.09.2019US
201910784610.823.08.2019CN
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) FAST INITIAL PHASE SEARCH FOR DIGITAL CLOCK AND DATA RECOVERY AND RELATED SYSTEMS, DEVICES, AND METHODS
(FR) RECHERCHE RAPIDE DE PHASE INITIALE POUR HORLOGE NUMÉRIQUE, RÉCUPÉRATION DE DONNÉES ET SYSTÈMES, DISPOSITIFS ET PROCÉDÉS ASSOCIÉS
Abstract
(EN)
Systems, devices, and methods related to selecting a sample phase of a signal are disclosed. A method includes sampling a signal including a plurality of symbols with a plurality of different sample phases to obtain sample values of each of the plurality of symbols at each of the plurality of different sample phases. The signal is received from a shared transmission medium. The method also includes determining an edge sample phase of the plurality of different sample phases that corresponds to edges of the symbols based on the sample values. The method further includes determining a center sample phase of the plurality of different sample phases based on the determined edge sample phase, and using the determined center sample phase to determine values of the symbols.
(FR)
L'invention concerne des systèmes, des dispositifs et des procédés se rapportant à la sélection d'une phase d'échantillon d'un signal. Un procédé comprend l'échantillonnage d'un signal comprenant une pluralité de symboles avec une pluralité de phases d'échantillon différentes pour obtenir des valeurs d'échantillon de chacun de la pluralité de symboles au niveau de chacune de la pluralité de différentes phases d'échantillon. Le signal est reçu à partir d'un support de transmission partagé. Le procédé comprend également la détermination d'une phase d'échantillon de front de la pluralité de différentes phases d'échantillon qui correspond à des fronts des symboles sur la base des valeurs d'échantillon. Le procédé comprend en outre la détermination d'une phase d'échantillon centrale de la pluralité de différentes phases d'échantillon sur la base de la phase d'échantillon de front déterminée, et l'utilisation de la phase d'échantillon centrale déterminée pour déterminer des valeurs des symboles.
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