Invention Grant
- Patent Title: Generation of clock signal from received packet stream
- Patent Title (中): 从接收的分组流生成时钟信号
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Application No.: US12093372Application Date: 2005-11-14
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Publication No.: US07830922B2Publication Date: 2010-11-09
- Inventor: Tore Mikael André
- Applicant: Tore Mikael André
- Applicant Address: SE Stockholm
- Assignee: Telefonaktiebolaget L M Ericsson (Publ)
- Current Assignee: Telefonaktiebolaget L M Ericsson (Publ)
- Current Assignee Address: SE Stockholm
- International Application: PCT/SE2005/001719 WO 20051114
- International Announcement: WO2007/055627 WO 20070518
- Main IPC: H04J3/06
- IPC: H04J3/06

Abstract:
A receiving unit receiving packets of a packet stream having an evaluating unit for comparing the arrival times of the packets to a generated clock signal. The generated clock signal is used in transmitting information carried in the packets from the receiving unit. From the delays, a signal producing unit determines a characteristic delay value, which is characteristic of or typical of the statistical distribution of the delays. This characteristic delay value may be an average of the smallest delays of the distribution of delays for the latest received packets, and is used for adjusting the frequency of the generated clock signal. The average may be calculated or derived from all of the smallest delays of the distribution obtained for a predetermined share of the latest received packets.
Public/Granted literature
- US20090225787A1 Generation of Clock Signal From Received Packet Stream Public/Granted day:2009-09-10
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