Prior art

To find the most relevant prior art for US patent 8989441, I will examine the patent citations listed within the patent itself. Under 35 U.S.C. § 102, a claim is anticipated if every element of the claimed invention is disclosed, either expressly or inherently, in a single prior art reference that existed before the effective filing date of the claimed invention.

Here are the patent citations for US8989441B2 and their potential relevance as prior art:

Cited Patent References:

1. US6289124B1

   • Full Citation: US6289124B1 - Method and system of handwritten-character recognition
   • Publication/Filing Date: Publication date: 2001-09-11; Priority date: 1998-04-27.
   • Brief Description: This patent describes a method and system for handwritten character recognition. It involves acquiring handwritten character data, comparing it with registered character patterns, and recognizing the character. While it deals with data acquisition and recognition, its focus is on static handwritten characters rather than dynamic motion.
   • Potential Anticipated Claim(s) under 35 U.S.C. § 102: While it involves data acquisition and recognition, the specific elements of motion data, motion trigger points, and the buffering scheme of US8989441B2 are not clearly present. Therefore, it is unlikely to directly anticipate the independent claims (1, 9, 17, 18) under 35 U.S.C. § 102, as not every element of the claims would be identically shown.

2. US20050259739A1

   • Full Citation: US20050259739A1 - Image processing apparatus and method, and recording medium and program used therewith
   • Publication/Filing Date: Publication date: 2005-11-24; Priority date: 2004-04-09.
   • Brief Description: This patent application describes an image processing apparatus and method for generating image data representing a subject's posture based on captured images, and for recognizing gestures. It focuses on image-based recognition.
   • Potential Anticipated Claim(s) under 35 U.S.C. § 102: Similar to US6289124B1, this reference deals with recognition but uses image data rather than sensor-based motion data with specific buffering around a motion trigger point. Thus, it is unlikely to directly anticipate claims 1, 9, 17, or 18.

3. WO2011003218A1

   • Full Citation: WO2011003218A1 - Acceleration motion identify method and system thereof
   • Publication/Filing Date: Publication date: 2011-01-13; Priority date: 2009-07-07.
   • Brief Description: This international patent application describes a method and system for identifying acceleration motion. This appears more closely related to motion detection using sensors.
   • Potential Anticipated Claim(s) under 35 U.S.C. § 102: This reference is more relevant due to its focus on "acceleration motion identify." Depending on the specifics of its disclosure regarding collecting "mFs frames of motion data prior to the motion trigger point, motion data regarding the motion trigger point, and nFs−1 frames of motion data after the motion trigger point," it could potentially anticipate aspects of Claim 1 (method) and Claim 9 (device), and consequently Claim 17 (system) and Claim 18 (computer readable storage medium). A detailed analysis of the full text of WO2011003218A1 would be needed to determine if every element of the independent claims of US8989441B2 is identically disclosed.

4. CN102591445A

   • Full Citation: CN102591445A - Stress sensing simulation method and equipment
   • Publication/Filing Date: Publication date: 2012-07-18; Priority date: 2011-01-06.
   • Brief Description: This Chinese patent application describes a stress sensing simulation method and equipment. The term "stress sensing" suggests a different focus than the motion data and trigger point detection of US8989441B2.
   • Potential Anticipated Claim(s) under 35 U.S.C. § 102: Without more details on its specific data acquisition and recognition methods, it is unlikely to directly anticipate the core elements of motion data buffering around a trigger point as claimed in US8989441B2.

5. CN102221369A

   • Full Citation: CN102221369A - Gesture recognizing method and device of ball game and gesture auxiliary device
   • Publication/Filing Date: Publication date: 2011-10-19; Priority date: 2011-04-29.
   • Brief Description: This Chinese patent application describes a gesture recognizing method and device for ball games, along with a gesture auxiliary device. This reference is highly relevant as it deals with motion recognition in ball games, a key application area for US8989441B2.
   • Potential Anticipated Claim(s) under 35 U.S.C. § 102: This reference's focus on "gesture recognizing method and device of ball game" makes it a strong candidate for potentially anticipating Claims 1, 9, 17, and 18. Specifically, the patent claims revolve around initial recognition of motion data, detecting a motion trigger point, and storing a predefined range of data around it. If CN102221369A describes a similar methodology for detecting significant moments in ball game gestures and intelligently handling data around those moments, it could anticipate the independent claims. A thorough review of its detailed claims and description would be necessary to confirm if every element of US8989441B2's independent claims is identically disclosed.

Based on the titles and brief descriptions, WO2011003218A1 and CN102221369A appear to be the most relevant prior art references due to their focus on acceleration motion identification and gesture recognition in ball games, respectively. A full anticipation analysis under 35 U.S.C. § 102 would require a detailed comparison of every element of the independent claims of US8989441B2 against the complete disclosure of each of these references.