ATR的專利

從EPO資料庫尋得申請人為「AVIONS DE TRANSP REGIONAL（ATR，法文）」的專利申請案，以及相關專利家族：

CA2510304 (A1)
CN100509559 (C)
DE602005004702 (T2)
DK1612140 (T3)
EP1612140 (A1)
ES2300957 (T3)
FR2872327 (A1)
RU2302359 (C2)
US2005288895(A1)，美案獲准為US 7,398,182

這件專利揭露一種偵測飛行器效能下降的方法，比對飛機重量、引擎理論拉力、引擎實際拉力，其中也考慮起飛前與飛行過程中的耗油量，藉此判斷出飛行器的效能是否降低；另有判斷效能是否降低的問題是飛行速度、高度、溫度等的參數比對。

（device 1, set 2, link 4, central unit 3, warning means 5, computing current weight 7, link 6, link 9, computing current drag 8, link 11, first set of comparison 10, determining degradation of performance 12, link 13, computing theoretical cruising speed 14, link 15, second set of comparison 16, link 17, link 18 ）

申請時請求項範圍寫的很怪：
1. A method for detecting a degradation of performance of an aircraft,

wherein the following sequence of steps is carried out automatically and repetitively:

a) we compute at least:

a current weight of the aircraft;

on the basis of said current weight, a theoretical drag of said aircraft; and

a current drag of said aircraft;

b) we implement at least a first set of comparisons, which relates to the drag and which comprises at least one comparison between said current drag and said theoretical drag; and

c) we determine whether a degradation of performance of the aircraft exists, at least on the basis of said first set of comparisons.

最後獲准Claim 1樣貌：
1. A method for detecting aircraft performance degradation comprising:

(a) receiving the initial weight of the aircraft from an external source;

(b) computing a current weight of the aircraft based on the received initial weight;

(c) computing the drag of the aircraft based on the computed current weight;

(d) computing a theoretical drag, CXth(理論拉力), of the aircraft based on the value of the computed drag and the square value of the computed drag

(e) comparing the computed theoretical drag to a current drag of the aircraft that is computed by a different formula;

(f) generating an indication of aircraft performance degradation based on the result of the comparison; and

(g) outputting said indication.

這件專利在各國狀況不一，在美國獲准了，如果所揭露的技術能確實實施，或許，結果會不一樣。願逝者安息。

Ron