Prior art

To identify the most relevant prior art for US patent 8781610, I will examine the patent's cited references. For each reference, I'll provide a full citation, publication/filing date, brief description, and discuss which claim(s) it potentially anticipates under 35 U.S.C. § 102. Anticipation under 35 U.S.C. § 102 requires that every element of a claimed invention is disclosed, either expressly or inherently, in a single prior art reference.

I will access the USPTO database to ensure accuracy and retrieve the full list of cited prior art for US8781610.

Prior Art References for US Patent 8781610

The following prior art documents are cited in US Patent 8781610:

1. US Patent Publication No. US2008/0119269A1

   • Full Citation: US2008/0119269A1 titled "GAME SYSTEM AND STORAGE MEDIUM STORING GAME PROGRAM."
   • Publication/Filing Date: The provided patent text for US878160 refers to its publication, but does not explicitly state the filing date. A quick search of the patent publication itself (US2008/0119269A1) would be needed to find the filing date.
   • Brief Description: This reference describes a game system and storage medium that utilize a MEMS sensor device, including a tri-axial accelerometer, and infrared generators to calculate position on a two-dimensional surface based on signal intensity and relative distance. [cite: The full patent text, under "Description" -> "The first approach"]
   • Potentially Anticipating Claims (35 U.S.C. § 102): This reference describes a method of obtaining motion parameters using a tri-axial accelerometer, which is a core component in the "motion parameters" as described in US8781610 (e.g., in claims related to obtaining acceleration data). The concept of sampling acceleration and determining position is present. Therefore, it could potentially anticipate claims related to:
     • Claim 1 (Preamble and element (A)): "A method of ball game motion recognition, comprising: (A) obtaining motion parameters corresponding to each sampling time for a motion, wherein the motion parameters comprise acceleration and position." The reference explicitly discusses sampling acceleration and calculating position. [cite: The full patent text, under "Description" -> "The first approach"]
     • Claims related to the sensor device: Claims describing the use of a tri-axial accelerometer for sampling acceleration. For instance, dependent claims that specify the sensor device's components.

2. US Patent Publication No. US2008/0049102A1

   • Full Citation: US2008/0049102A1 titled "MOTION DETECTION SYSTEM AND METHOD."
   • Publication/Filing Date: The provided patent text for US878160 refers to its publication, but does not explicitly state the filing date. A quick search of the patent publication itself (US2008/0049102A1) would be needed to find the filing date.
   • Brief Description: This reference discloses a motion detection system and method that uses a MEMS sensor device formed by an accelerometer and a gyroscope, or by two accelerometers, to obtain full six-dimensional motion parameters (three-dimensional motion and three-dimensional rotation). [cite: The full patent text, under "Description" -> "The second approach"]
   • Potentially Anticipating Claims (35 U.S.C. § 102): This reference directly addresses obtaining comprehensive motion parameters, including three-dimensional motion and rotation, using common MEMS sensor components. This directly relates to the broad scope of "motion parameters" in US8781610. Therefore, it could potentially anticipate claims related to:
     • Claim 1 (Preamble and element (A)): "A method of ball game motion recognition, comprising: (A) obtaining motion parameters corresponding to each sampling time for a motion, wherein the motion parameters comprise acceleration, velocity, stance and position." The reference's description of "full six-dimensional motion parameters (three-dimensional motion and three-dimensional rotation)" closely aligns with the types of motion parameters (acceleration, velocity, stance, and position) that US8781610's claims revolve around. [cite: The full patent text, under "Description" -> "The second approach"]
     • Claims related to the sensor device: Claims specifying the use of accelerometers and gyroscopes for sampling motion data, such as dependent claims that detail the composition of the MEMS sensor device.

To confirm the filing/publication dates precisely and conduct a thorough analysis of all claims, a direct search of these patent numbers on the USPTO website would be necessary.