Prior art — US Patent 11693938

To identify the most relevant prior art for US patent 11693938, I will search the USPTO database for the patent and then analyze its cited references.

USPTO Search for US Patent 11693938

I have accessed the full patent text for US11693938B2, "Facial recognition authentication system including path parameters," directly from Google Patents, which is a reliable source for patent information. The Google Patents page for US11693938B2 also lists prior art documents. I will use this information.

Most Relevant Prior Art for US Patent 11693938

The "Prior art keywords" listed on the Google Patents page are "user," "image," "data," "authentication," and "distance." The "Prior art date" is listed as 2014-08-28. I will now examine the "Cited by" and "References" sections of the patent to identify the most relevant prior art.

Understanding 35 U.S.C. § 102:
35 U.S.C. § 102 defines the conditions for patentability, specifically novelty. Under this statute, an invention is not patentable if it was described in a patent, printed publication, or in public use, on sale, or otherwise available to the public before the effective filing date of the claimed invention. There are exceptions to what qualifies as prior art, such as disclosures made by the inventor within one year or less before the effective filing date.

Based on the information available on the Google Patents page for US11693938B2, here are some of the most relevant prior art documents cited:

US20150063625A1 (Priority date: 2014-08-28, Publication date: 2015-03-05)
- Full Citation: US20150063625A1 - Facial recognition authentication system including path parameters.
- Publication/Filing Date: Published March 5, 2015. The priority date is August 28, 2014.
- Brief Description: This patent application describes a facial recognition authentication system that uses a mobile device to obtain enrollment images as a user moves the device, recording the movement path and obtaining biometric information. During authentication, similar images and movement data are collected and compared to the enrollment data to authenticate the user. This is a direct antecedent to US11693938B2, sharing the same title and inventor, suggesting it is an earlier publication of related subject matter.
- Potential Anticipation (35 U.S.C. § 102): This reference is highly relevant and likely anticipates many aspects of Claims 1, 10, and 18, as it appears to describe essentially the same core invention. Given the filing date of US11693938 (August 27, 2020) and the earlier publication of US20150063625A1 (March 5, 2015), this earlier publication would generally be considered prior art. However, it is noted that US11693938B2 lists US20200394290A1 as an "other version" and shares the priority date of 2014-08-28 with US20150063625A1. If US11693938B2 is a continuation or divisional of an application that claimed priority back to 2014-08-28, then US20150063625A1 might not be statutory prior art against the claims of US11693938B2 under 35 U.S.C. § 102(a)(2) if the claimed invention was invented by the same inventor and effectively filed before the effective filing date of the claimed invention. Without a full prosecution history, a definitive statement is difficult, but based purely on publication dates, it describes the same invention prior to the filing of the granted patent.
US20200394290A1 (Publication date: 2020-12-17)
- Full Citation: US20200394290A1 - Facial recognition authentication system including path parameters.
- Publication/Filing Date: Published December 17, 2020.
- Brief Description: This is listed as an "other version" of the patent, suggesting it is a published application that matured into US11693938B2. It describes the same facial recognition authentication system using path parameters from a mobile device.
- Potential Anticipation (35 U.S.C. § 102): As an earlier publication of the same application family that led to US11693938B2, this document would not typically be considered prior art under 35 U.S.C. § 102 against the claims of US11693938B2, assuming proper priority claims. Instead, it represents the published application stage of the granted patent.

To provide a comprehensive analysis, a deeper dive into the patent's prosecution history would be necessary to understand the exact relationships between these applications and their effective filing dates. However, based on the provided information, US20150063625A1 is the most chronologically relevant prior art publication from the same inventor/assignee that predates the filing date of US11693938B2.