軟體發明的“structure ”

Allvoice Computing v. Nuance Comm. (Fed. Cir. 2007)


軟體發明常使用means plus function來撰寫每個step，可是功能手段用語需於說明書中揭露對應的結構，只是軟體發明的結構是什麼？滿有趣的，不是電腦，處理器等，而是流程圖。

Allvoice appealed after the Texas court found its means-plus-function claim elements indefinite under 35 U.S.C. § 112.

PHOSITA Creativity: A means plus function element is considered indefinite if a PHOSITA “would be unable to recognize the structure in the specification and associate it with the corresponding function in the claim.”

On appeal, the CAFC took a cue from KSR v. Teleflex — finding that a PHOSITA is creative and “not an automation.” For software cases, this means that the specification “need only disclose adequate defining structure to render the bounds of the claim understandable to one of ordinary skill in the art. Here, the CAFC found that the algorithm flowchart (see figure) was sufficient structure.

使用功能手段用語於說明書中應該對應的結構揭露，而於軟體發明中，計算流程圖作為軟體發明的結構，是足夠的結構揭露。


 【更新】 【2016/09/21】

https://www.uspto.gov/web/offices/pac/mpep/s2181.html

2181    Identifying and Interpreting a 35 U.S.C. 112(f) or Pre-AIA 35 U.S.C. 112, Sixth Paragraph Limitation [R-07.2015]

對於該演算法的描述必須足夠，流程圖即是結構。

If the specification explicitly discloses an algorithm, the sufficiency of the disclosure of the algorithm must be determined in light of the level of ordinary skill in the art. Aristocrat, 521 F.3d at 1337, 86 USPQ2d at 1241; AllVoice Computing PLC v. Nuance Commc’ns, Inc., 504 F.3d 1236, 1245, 84 USPQ2d 1886, 1893 (Fed. Cir. 2007); Intel Corp., 319 F.3d at 1366-67, 65 USPQ2d 1934, 1941 (knowledge of a person of ordinary skill in the art can be used to make clear how to implement a disclosed algorithm). The examiner should determine whether one skilled in the art would know how to program the computer to perform the necessary steps described in the specification (i.e., the invention is enabled), and that the inventor was in possession of the invention (i.e., the invention meets the written description requirement). Thus, the specification must sufficiently disclose an algorithm to transform a general purpose microprocessor to a special purpose computer so that a person of ordinary skill in the art can implement the disclosed algorithm to achieve the claimed function. Aristocrat, 521 F.3d at 1338, 86 USPQ2d at 1242.

Applicant may express the algorithm in any understandable terms including as a mathematical formula, in prose, in a flow chart, or “in any other manner that provides sufficient structure.” Finisar, 523 F.3d at 1340, 86 USPQ2d at 1623; see also Intel Corp. v. VIA Techs., Inc., 319 F.3d 1357, 1366, 65 USPQ2d 1934, 1941 (Fed. Cir. 2003); In re Dossel, 115 F.3d 942, 946-47, 42 USPQ2d 1881, 1885 (Fed. Cir.1997); Typhoon Touch Inc. v. Dell Inc., 659 F.3d 1376, 1385, 100 USPQ2d 1690, 1697 (Fed. Cir. 2011); In re Aoyama, 656 F.3d at 1306, 99 USPQ2d at 1945.