Invention Grant
US08879680B2 Adaptive clock mismatch compensation symbol insertion in signal transmissions
有权
信号传输中的自适应时钟失配补偿符号插入
- Patent Title: Adaptive clock mismatch compensation symbol insertion in signal transmissions
- Patent Title (中): 信号传输中的自适应时钟失配补偿符号插入
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Application No.: US13670062Application Date: 2012-11-06
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Publication No.: US08879680B2Publication Date: 2014-11-04
- Inventor: Michael Tresidder , Gordon F. Caruk
- Applicant: ATI Technologies ULC
- Applicant Address: CA Markham
- Assignee: ATI Technologies ULC
- Current Assignee: ATI Technologies ULC
- Current Assignee Address: CA Markham
- Main IPC: H04L7/00
- IPC: H04L7/00

Abstract:
A transmitting interconnect interface inserts clock mismatch compensation symbols into a transmitted data stream so as to allow the receiving interconnect interface to compensate for clock frequency mismatch between transmit-side and receive-side clocks. The transmitting interconnect interface adjusts the rate of insertion of these symbols based on a determination of the clock frequency mismatch. The transmitting interconnect interface can incrementally adjust the insertion rate to change substantially proportionally with changes in the clock frequency mismatch. Alternatively, the transmitting interconnect interface can set the insertion rate to one of two levels. By adapting the insertion rate to the current measured clock frequency mismatch, the bandwidth penalty incurred by transmitting clock mismatch compensation symbols in excess of that necessary to permit receiver clock tolerance compensation can be reduced, thereby permitting more transmit bandwidth to be used for transmitting data.
Public/Granted literature
- US20140126612A1 ADAPTIVE CLOCK MISMATCH COMPENSATION SYMBOL INSERTION IN SIGNAL TRANSMISSIONS Public/Granted day:2014-05-08
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