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1. (WO2007005475) RECOVERY OF CLIENT CLOCK WITHOUT JITTER
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2007/005475 International Application No.: PCT/US2006/025213
Publication Date: 11.01.2007 International Filing Date: 27.06.2006
IPC:
H03L 7/081 (2006.01)
H ELECTRICITY
03
BASIC ELECTRONIC CIRCUITRY
L
AUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
7
Automatic control of frequency or phase; Synchronisation
06
using a reference signal applied to a frequency- or phase-locked loop
08
Details of the phase-locked loop
081
provided with an additional controlled phase shifter
Applicants:
INFINERA CORPORATION [US/US]; 1322 Bordeaux Drive Sunnyvale, CA 94089, US (AllExceptUS)
YOUNG, Scott A. [US/US]; US
CHIANG, Ting-Kuang [US/US]; US
Inventors:
YOUNG, Scott A.; US
CHIANG, Ting-Kuang; US
Agent:
NORTH WEBER & BAUGH LLP; Attn: Michael V. North 2479 East Bayshore Road, Suite 707 Palo Alto, CA 94303, US
Priority Data:
60/695,38330.06.2005US
Title (EN) RECOVERY OF CLIENT CLOCK WITHOUT JITTER
(FR) RECUPERATION D'UN SIGNAL D'HORLOGE CLIENT SANS GIGUE
Abstract:
(EN) The present invention provides a system, apparatus and method for recovering a client signal clock. The present invention is able to more effectively remove jitter within a clock signal by providing a phase shifting element in the feedback of a PLL system to compensate for sudden changes in an input reference clock. The PLL system provides flexible clock recovery so that it can accommodate various payload types because it extracts a client clock signal independent of a corresponding justification count number.
(FR) La présente invention concerne un système, un dispositif et un procédé destinés à récupérer un signal d'horloge client. La présente invention permet de supprimer plus efficacement la gigue dans un signal d'horloge par utilisation d'un élément de déphasage dans la rétroaction d'un système PLL en vue d'une compensation des changements brusques intervenant dans un signal d'horloge de référence d'entrée. Le système PLL permet d'obtenir une récupération de signal d'horloge souple en vue d'une prise en charge de divers types de charges utiles étant donné qu'il extrait un signal d'horloge client indépendamment d'un nombre de comptages de justification correspondant.
front page image
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LV, LY, MA, MD, MG, MK, MN, MW, MX, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IS, IT, LT, LU, LV, MC, NL, PL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
EP1900100JP2008545341CN101273528CA2612431IN2209/MUMNP/2007