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1. US20210160043 - QUARTER-RATE SERIAL-LINK RECEIVER WITH LOW-APERTURE-DELAY SAMPLERS

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États-Unis d'Amérique
Numéro de la demande 17046250
Date de la demande 05.04.2019
Numéro de publication 20210160043
Date de publication 27.05.2021
Numéro de délivrance 11018845
Date de délivrance 25.05.2021
Type de publication B1
CIB
H04L 7/00
HÉLECTRICITÉ
04TECHNIQUE DE LA COMMUNICATION ÉLECTRIQUE
LTRANSMISSION D'INFORMATION NUMÉRIQUE, p.ex. COMMUNICATION TÉLÉGRAPHIQUE
7Dispositions pour synchroniser le récepteur avec l'émetteur
H04L 7/033
HÉLECTRICITÉ
04TECHNIQUE DE LA COMMUNICATION ÉLECTRIQUE
LTRANSMISSION D'INFORMATION NUMÉRIQUE, p.ex. COMMUNICATION TÉLÉGRAPHIQUE
7Dispositions pour synchroniser le récepteur avec l'émetteur
02Commande de vitesse ou de phase au moyen des signaux de code reçus, les signaux ne contenant aucune information de synchronisation particulière
033en utilisant les transitions du signal reçu pour commander la phase de moyens générateurs du signal de synchronisation, p.ex. en utilisant une boucle verrouillée en phase
H04L 25/03
HÉLECTRICITÉ
04TECHNIQUE DE LA COMMUNICATION ÉLECTRIQUE
LTRANSMISSION D'INFORMATION NUMÉRIQUE, p.ex. COMMUNICATION TÉLÉGRAPHIQUE
25Systèmes à bande de base
02Détails
03Réseaux de mise en forme pour émetteur ou récepteur, p.ex. réseaux de mise en forme adaptatifs
CPC
H04L 2025/03509
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
25Baseband systems
02Details
03Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
03006Arrangements for removing intersymbol interference
03433characterised by equaliser structure
03439Fixed structures
03445Time domain
03471Tapped delay lines
03509fractionally spaced
H04L 7/0087
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
7Arrangements for synchronising receiver with transmitter
0079Receiver details
0087Preprocessing of received signal for synchronisation, e.g. by code conversion, pulse generation or edge detection
H04L 25/03063
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
25Baseband systems
02Details
03Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
03006Arrangements for removing intersymbol interference
03012operating in the time domain
03019adaptive, i.e. capable of adjustment during data reception
03057with a recursive structure
03063using fractionally spaced delay lines or combinations of fractionally and integrally spaced taps
H04L 7/0331
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
0331with a digital phase-locked loop [PLL] processing binay samples, e.g. add/subtract logic for correction of receiver clock
Déposants The Regents of the University of California
Inventeurs Chang Liu
Xiaoguang Liu
Titre
(EN) QUARTER-RATE SERIAL-LINK RECEIVER WITH LOW-APERTURE-DELAY SAMPLERS
front page image
Abrégé
(EN)

The disclosed embodiments provide a system that implements a low-aperture-delay sampler. The system includes a sampler input, which receives an input signal, and a clock input, which receives a clock signal. The system also includes: a first sampling channel, which samples the input signal when the clock signal is low and is associated with a previous clock phase; and a second sampling channel, which samples the input signal when a rising edge is received in the clock signal, wherein the rising edge is associated with a present clock phase. The system additionally includes a combining mechanism, which combines outputs of the first and second sampling channels to produce a sampler output with a significantly reduced aperture delay.
Documents de brevet associés
WO/2019/199609
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