Invention Grant
- Patent Title: Filter turning point detection
- Patent Title (中): 过滤拐点检测
-
Application No.: US11223730Application Date: 2005-09-09
-
Publication No.: US07103514B1Publication Date: 2006-09-05
- Inventor: Scott M. Carlson , Michel Henri Théodore Hack , Li Zhang
- Applicant: Scott M. Carlson , Michel Henri Théodore Hack , Li Zhang
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agency: Scully, Scott, Murphy & Presser
- Agent Eugene I. Shkurko, Esq.
- Main IPC: G06F15/00
- IPC: G06F15/00

Abstract:
Disclosed are a method and system for detecting point. The method of this invention comprises the steps of providing a set of points representing measured time delays between two clocks, providing a turning indicator to measure a magnitude of turns per measurement interval, and identifying a turn at a given point when the turn indicator at said given point is above a given value. With the preferred embodiment of the invention, the turn indicator is given by the equation: turn_indicator=(rtt_min−rtt_estimate)/number_of_points; where rtt_min is the minimum round trip delay in all the measurement points, and rtt_estimate is estimated round trip delay by using the symmetric convex hull algorithm.
Information query