Prior art

The provided "Full patent text" for US patent 11728564 does not contain a standard "References Cited" section that lists all prior art documents considered during the patent's examination. Such a section is typically found in the full patent document.

However, the provided text does explicitly mention one patent application within its "Definitions" section:

"Magnetic secure transmission is also referred as magnetic stripe transmission or magnetic secure transmission as disclosed in US 2016/0180120 A1 entitled “MAGNETIC SECURE TRANSMISSION DEVICE HARDWARE,” the entire disclosure of which is incorporated by reference herein."

Based on the authoritative text provided, this is the only explicit external patent document identified as a reference. An analysis of this reference is provided below.

Prior Art Reference: US 2016/0180120 A1

• Full Citation: US 2016/0180120 A1, entitled "MAGNETIC SECURE TRANSMISSION DEVICE HARDWARE."

  • Note: The provided text does not specify the inventor or assignee for this document.

• Publication/Filing Date: The publication or filing date for US 2016/0180120 A1 is not explicitly stated within the provided text of US11728564.

• Brief Description: This patent application describes hardware related to Magnetic Secure Transmission (MST) technology. In the context of US11728564, it is cited to define the term "Magnetic Secure Transmission" itself. This suggests that the document discloses the fundamental principles and components for enabling MST functionality, typically involving magnetic fields and coils to emulate a magnetic stripe card for payments.

• Potential Anticipation under 35 U.S.C. § 102:
  Given that US 2016/0180120 A1 broadly describes MST device hardware, it could potentially anticipate aspects of US11728564 that pertain to the functionality and basic coil components used for MST.

  For example, US11728564 includes several statements regarding MST functionality:

  • "the first coil antenna 204 may be connected to an MST circuit in the smartphone and functions as an MST antenna or MST inductor."
  • "the first coil antenna is connected to a first smartphone circuit and configured for magnetic secure transmission (MST) using a frequency range of 85-100 KHz..."

  Therefore, US 2016/0180120 A1 could potentially anticipate the functional aspect of using a coil antenna within a smartphone for Magnetic Secure Transmission, as broadly described in claims or definitions in US11728564 that relate to MST operation.

  However, it is unlikely to anticipate the specific structural limitations present in independent claim 1 of US11728564, which describes a detailed physical arrangement including:

  • A flexible PCB with first and second major surfaces.
  • A magnetic sheet engaged with the flexible PCB.
  • A first coil antenna and a second coil antenna, where the second surrounds the first and they are spaced apart.
  • A through-hole in the flexible PCB, surrounded by the first coil.
  • The magnetic sheet having distinct first and second sheet portions, with one passing through the through-hole and being placed on the first major surface while overlapping a first coil portion, and the other on the second major surface overlapping a second coil portion.

  Without the full text of US 2016/0180120 A1, a precise claim-by-claim comparison is not possible. However, based on its general title and the context of its citation, it primarily serves to establish the known art of MST technology, rather than disclosing the specific structural innovations claimed in US11728564.