Prior art

To identify the most relevant prior art for US Patent 11176538, I will examine the "Patent citations" section of the patent record on Google Patents, which typically lists the prior art cited by the examiner and applicant. While a direct USPTO database search is requested, Google Patents provides a convenient and comprehensive view of these citations, which are sourced from USPTO data.

Here's an analysis of the prior art cited in US Patent 11176538:

Full Citation: US11176538B2 - Multi-function smart tokenizing electronic payment device
Publication/Filing Date: The priority date for US11176538 is March 15, 2013, and its filing date is October 20, 2020.

Relevant Prior Art Citations:

The patent description explicitly mentions several related applications that are incorporated by reference and thus serve as prior art for certain aspects of the current patent. These are:

1. U.S. Patent No. 10,810,579

   • Full Citation: U.S. patent application Ser. No. 16/459,150, now U.S. Pat. No. 10,810,579
   • Publication/Filing Date: Filed July 1, 2019.
   • Brief Description: This patent is a continuation application in the family that led to US11176538. It likely covers aspects related to the multi-function electronic device, its ability to generate a programmed magnetic field for emulating a standard credit card, and potentially features like user control and transaction processing.
   • Potential Anticipated Claim(s): This patent likely anticipates aspects of Claims 1 and 8, particularly regarding the apparatus for generating a programmed magnetic field for card emulation and the multi-function electronic device features. It may also touch upon the general concepts in Claim 13 and 14 related to transaction methods and device connectivity as a foundational patent in the family.

2. U.S. Patent No. 10,339,520

   • Full Citation: U.S. patent application Ser. No. 15/701,261, now U.S. Pat. No. 10,339,520
   • Publication/Filing Date: Filed September 11, 2017.
   • Brief Description: Another continuation application, this patent would likely detail further developments or refinements of the core concepts introduced in the patent family, such as the tokenizing electronic payment device and its multi-function capabilities.
   • Potential Anticipated Claim(s): Similar to U.S. Pat. No. 10,810,579, this patent would likely anticipate aspects of Claims 1 and 8, building upon the foundational concepts of the multi-function electronic device, magnetic field generation, and general device functionalities. It could also bear relevance to Claim 13's method for transaction and Claim 14's device connectivity.

3. U.S. Patent No. 9,760,884

   • Full Citation: U.S. patent application Ser. No. 14/981,757, filed Dec. 28, 2015, now U.S. Pat. No. 9,760,884
   • Publication/Filing Date: Filed December 28, 2015.
   • Brief Description: As a continuation in the same family, this patent would further elaborate on the device's architecture and methods, potentially including details on generating limited-duration payment numbers or device-to-device transactions.
   • Potential Anticipated Claim(s): This patent could potentially anticipate aspects of Claims 1, 8, and 13, particularly regarding the generation of limited-duration payment numbers and the mechanisms for device-to-device transactions as part of the evolving patent family.

4. U.S. Patent No. 9,224,083

   • Full Citation: U.S. patent application Ser. No. 14/680,979, filed Apr. 7, 2015, now U.S. Pat. No. 9,224,083
   • Publication/Filing Date: Filed April 7, 2015.
   • Brief Description: This patent, a division of an earlier application, likely focuses on specific aspects or embodiments of the multi-function payment device, potentially covering details of the magnetic field generation or the motion detection system.
   • Potential Anticipated Claim(s): Given its divisional status, this patent is highly likely to anticipate elements of Claim 1, which details the apparatus for credit transactions, specifically the inductor assembly and auxiliary rate detection units. It may also be relevant to Claim 8's motion rate detection array.

5. U.S. Patent No. 9,022,286

   • Full Citation: U.S. patent application Ser. No. 14/217,261, filed Mar. 17, 2014, now U.S. Pat. No. 9,022,286
   • Publication/Filing Date: Filed March 17, 2014.
   • Brief Description: This is a key patent in the family, being the direct parent of U.S. Pat. No. 9,224,083 and claiming priority from the provisional application. It would likely introduce the fundamental concepts of the multi-function electronic device, the magnetic field emulation, and the associated methods.
   • Potential Anticipated Claim(s): This patent is very likely to anticipate core elements of Claims 1, 8, and 13, establishing the groundwork for the multi-function device, the magnetic field emulation, the various components (NFC, touch sensor, display, motion detection), and the method of generating limited-duration payment numbers.

6. U.S. Provisional Application 61/794,891

   • Full Citation: Provisional Application 61/794,891
   • Publication/Filing Date: Filed March 15, 2013.
   • Brief Description: This provisional application serves as the earliest priority document for the entire patent family. It would contain the initial disclosure of the invention's core ideas, likely encompassing the multi-function payment device, its ability to emulate magnetic strips, and possibly early concepts of tokenization and enhanced security features.
   • Potential Anticipated Claim(s): This provisional application likely lays the foundation for all independent claims (1, 8, 13, and 14), as it represents the earliest documented disclosure of the invention's fundamental concepts described in US11176538.

Without a detailed claim-by-claim comparison against the full text of each cited patent, it is difficult to definitively state which specific claims are fully anticipated. However, based on the descriptions of the parent and continuation applications, these documents represent a continuous development of the same inventive concept. Therefore, there is a high likelihood that earlier patents in this family, particularly U.S. Patent No. 9,022,286 and the provisional application, will anticipate many of the broader aspects of the independent claims of US11176538 under 35 U.S.C. § 102. The later continuation patents would likely refine or add specific features that might differentiate some claims of US11176538.