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1. WO1997050033 - NOISE TOLERANT RUN-IN CLOCK RECOVERY METHOD AND APPARATUS

Publication Number WO/1997/050033
Publication Date 31.12.1997
International Application No. PCT/US1997/009759
International Filing Date 09.06.1997
Chapter 2 Demand Filed 09.12.1997
IPC
H04N 7/035 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
7Television systems
025Systems for transmission of digital non-picture data, e.g. of text during the active part of a television frame
035Circuits for the digital non-picture data signal, e.g. for slicing of the data signal, for regeneration of the data-clock signal, for error detection or correction of the data signal
CPC
H04N 7/0352
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
7Television systems
025Systems for the transmission of digital non-picture data, e.g. of text during the active part of a television frame
035Circuits for the digital non-picture data signal, e.g. for slicing of the data signal, for regeneration of the data-clock signal, for error detection or correction of the data signal
0352for regeneration of the clock signal
Applicants
  • INTEL CORPORATION [US]/[US]
Inventors
  • CAHILL, Benjamin, M., III
Agents
  • TAYLOR, Edwin, H.
Priority Data
08/670,56426.06.1996US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) NOISE TOLERANT RUN-IN CLOCK RECOVERY METHOD AND APPARATUS
(FR) PROCEDE ET APPAREIL POUR LA RECUPERATION DU SIGNAL D'HORLOGE DE DEPART A TOLERANCE AU BRUIT
Abstract
(EN)
A hardware system is programmed with a noise tolerant vertical blanking interval (VBI) scan line run-in clock recovery function (10) that determines the phase adjustment for reading sampling data, using only phase error observations that fall within a heavily populated phase error super-subrange, and excluding the remaining phase error observations from the determination, thereby improving the precision of the determination, and reducing unnecessary rejections of VBI scan lines (14).
(FR)
Selon l'invention, un système hardware est programmé de façon à présenter une fonction (10) de récupération de signal d'horloge de départ pour lignes de balayage à intervalles de suppression verticale, fonction qui détermine le réglage en phase pour la lecture de données d'échantillonnage, cela seulement au moyen des observations des erreurs de phase qui entrent dans un super-sous-intervalle d'erreurs de phase fortement peuplé, et par exclusion des observations d'erreurs de phase de la détermination, améliorant ainsi la précision de la détermination et réduisant les rejets inutiles de lignes de balayage à intervalles de suppression verticale (14).
Also published as
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