Patent · US Active

Recovery and synchronization for spread spectrum modulated clock

US8582710B2 · kind B2 · utility

1Cited by

3References

21Claims

0Family size

Assignee

Broadcom Corporation · US

Inventors

Neven Pischl · Santa Clara, US
Joseph Cordaro · Irvine, US
Yongbum Kim · Seoul, KR

Key dates

Filing date	Mar 31, 2011
Grant date	Nov 12, 2013
Priority date	—
Expiry date	Nov 30, 2031

Classification

Technology area (CPC H)Electricity
CPC primaryH04L7/02
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

Abstract

Embodiments allow for the use of the SS modulation technique (and thus for significant reduction of EMI due to clock transmission) in scenarios involving tight synchronization requirements between two devices. In particular, embodiments can be used in high-speed communication networks (e.g., high-speed Ethernet) where a clock signal embedded in the data stream at the transmitter and recovered from the data stream at the receiver is the only source for synchronization between the transmitter and the receiver (i.e., no other synchronization channel available). Embodiments are also especially useful in communication systems utilizing echo cancellers.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.