DCT

4:26-cv-00749

Near Field Electronics LLC v. Victoria's Secret & Co

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I. Executive Summary and Procedural Information

  • Parties & Counsel:
  • Case Identification: 4:26-cv-00749, E.D. Tex., 06/29/2026
  • Venue Allegations: Venue is asserted based on Defendant having a regular and established place of business in the district and allegedly introducing infringing products into the stream of commerce within the district.
  • Core Dispute: Plaintiff alleges that Defendant's use of Near Field Communication (NFC) components in its point-of-sale systems for contactless payments infringes five patents related to semiconductor interface architecture, power management, and signal detection.
  • Technical Context: The patents-in-suit relate to technologies developed for managing wired computer peripheral interfaces (e.g., USB, PS/2) and their power consumption, which Plaintiff now asserts are applicable to modern contactless communication systems.
  • Key Procedural History: The complaint notes that four of the five asserted patents expired prior to the filing of the lawsuit. For all asserted patents, Plaintiff seeks damages only for a specified infringement period beginning June 29, 2020, and ending on each patent's respective expiration date. This structure limits the case primarily to a dispute over past damages rather than ongoing infringement.

Case Timeline

Date Event
2000-06-21 U.S. Patent No. 6,691,201 Priority Date
2000-07-25 U.S. Patent No. 6,742,071 Priority Date
2000-08-28 U.S. Patent No. 6,996,727 Priority Date
2002-06-28 U.S. Patent No. 6,959,350 Priority Date
2004-02-10 U.S. Patent No. 6,691,201 Issued
2004-05-25 U.S. Patent No. 6,742,071 Issued
2005-01-11 U.S. Patent No. 7,373,531 Priority Date
2005-10-25 U.S. Patent No. 6,959,350 Issued
2006-02-07 U.S. Patent No. 6,996,727 Issued
2008-05-13 U.S. Patent No. 7,373,531 Issued
2020-06-29 Alleged Infringement Period Begins for all Patents
2021-11-21 U.S. Patent No. 6,742,071 Expired
2022-01-31 U.S. Patent No. 6,691,201 Expired
2022-04-14 U.S. Patent No. 6,996,727 Expired
2023-08-12 U.S. Patent No. 6,959,350 Expired
2026-03-19 U.S. Patent No. 7,373,531 Expired
2026-06-29 Complaint Filed

II. Technology and Patent(s)-in-Suit Analysis

U.S. Patent No. 6,691,201 - "Dual Mode USB-PS/2 Device"

  • Patent Identification: U.S. Patent No. 6,691,201, "Dual Mode USB-PS/2 Device," issued February 10, 2004.

The Invention Explained

  • Problem Addressed: The patent describes that, at the time of invention, supporting multiple communication protocols (like USB and PS/2) in a single peripheral device required costly external components, additional circuit board space, and complex firmware, which could also compromise performance Compl. ¶11 '201' Patent, col. 1:28-50
  • The Patented Solution: The invention is a single integrated circuit designed to support multiple signaling protocols using a single set of input/output (I/O) pins. The circuit can automatically detect the protocol of a connected bus (e.g., USB or PS/2) and configure itself to operate in the corresponding mode, thereby eliminating the need for external components and simplifying the device's design Compl. ¶¶10, 12 '201 Patent, abstract '201 Patent, col. 2:51-56
  • Technical Importance: This technology enabled the creation of more versatile and cost-effective computer peripherals that could seamlessly connect to different host systems without requiring physical adapters, enhancing their marketability.

Key Claims at a Glance

  • The complaint asserts independent method claim 14 Compl. ¶31
  • The essential steps of claim 14 are:
    • (A) detecting a signaling protocol of a bus connected to an integrated circuit that operates in a plurality of signaling protocols; and
    • (B) configuring said integrated circuit to communicate in one of said plurality of signaling protocols in response to said detected signaling protocol of said connected bus, wherein each of said selected protocols operate over said connected bus through a single set of pins.
  • The complaint reserves the right to amend its infringement analysis and assert additional claims Compl. ¶32

U.S. Patent No. 6,742,071 - "Real-time I/O Processor Used to Implement Bus Interface Protocols"

  • Patent Identification: U.S. Patent No. 6,742,071, "Real-time I/O Processor Used to Implement Bus Interface Protocols," issued May 25, 2004.

The Invention Explained

  • Problem Addressed: The patent identifies the limitations of conventional interface designs, which were either specific to a single protocol or were user-programmable in a rigid way that was ill-suited for implementing complex or evolving interface signaling '071' Patent, col. 1:14-48
  • The Patented Solution: The patent teaches a real-time I/O processor, also described as a programmable general-purpose interface (GPIF), which uses a limited instruction set to generate interface-specific waveforms and respond to external events. This allows the processor's control outputs and data path decisions to be changed each clock cycle, providing a flexible and high-speed alternative to rigid, protocol-specific hardware designs Compl. ¶¶15-16 '071 Patent, col. 1:65-col. 2:1 '071 Patent, col. 6:4-16
  • Technical Importance: This programmable processor architecture offered a flexible and efficient way for a single chip to manage communications with multiple, different, or evolving external bus protocols, reducing design costs and improving performance.

Key Claims at a Glance

  • The complaint asserts independent method claim 15 Compl. ¶36
  • The essential steps of claim 15 are:
    • (A) generating a plurality of first control signals in response to a current state of a processor;
    • (B) progressing to a next state based on said current state, at least one internal control signal of said first control signals and an input signal received from said external bus;
    • (C) driving at least one output control signal of said first controls signals onto said external bus; and
    • (D) updating said current state to said next state.
  • The complaint reserves the right to amend its infringement analysis and assert additional claims Compl. ¶37

U.S. Patent No. 6,959,350 - "Configurable USB Interface With Virtual Register Architecture"

  • Patent Identification: U.S. Patent No. 6,959,350, "Configurable USB Interface With Virtual Register Architecture," issued October 25, 2005 Compl. ¶17
  • Technology Synopsis: The patent addresses the inefficiency of using hard-coded endpoint configurations in USB interface controllers, which required creating and maintaining different versions of hardware description language (HDL) code for different endpoint needs Compl. ¶20 The '350' patent discloses a configurable bus interface controller that uses an HDL-based configuration package to generate the necessary configuration circuitry, allowing the controller to be flexibly configured for various endpoints without requiring separate HDL code for each one Compl. ¶¶19, 21
  • Asserted Claims: The complaint asserts at least claim 10 Compl. ¶41
  • Accused Features: The accused "NFC Front-end components" are alleged to perform the claimed method during contactless credit card payment transactions Compl. ¶41

U.S. Patent No. 6,996,727 - "Power Supply for Universal Serial Bus Interface with Programmable Bus Pullup Resistor"

  • Patent Identification: U.S. Patent No. 6,996,727, "Power Supply for Universal Serial Bus Interface with Programmable Bus Pullup Resistor," issued February 7, 2006 Compl. ¶22
  • Technology Synopsis: The patent targets the power inefficiency of conventional USB power supplies that provided only a constant voltage with no low-power mode Compl. ¶25 The invention provides a power supply architecture with both a standard operating mode and a power-down standby mode. In standby mode, it uses a low-power programmable resistor to maintain the required bus pullup function, significantly reducing current consumption during idle states Compl. ¶24
  • Asserted Claims: The complaint asserts at least claim 18 Compl. ¶46
  • Accused Features: The accused "NFC Front-end components" are alleged to perform the claimed method during contactless credit card payment transactions Compl. ¶46

U.S. Patent No. 7,373,531 - "Signal Detection Method, Frequency Detection Method, Power Consumption Control Method..."

  • Patent Identification: U.S. Patent No. 7,373,531, "Signal Detection Method, Frequency Detection Method, Power Consumption Control Method...," issued May 13, 2008 Compl. ¶26
  • Technology Synopsis: The patent describes methods and devices for detecting the operational state of an electronic component by monitoring the "through current" flowing in a circuit of connected transistors Compl. ¶28 Detecting the presence, absence, or frequency of a signal based on this through current enables the apparatus to reduce power consumption by stopping or reducing the power supply when the monitored component is inactive Compl. ¶29
  • Asserted Claims: The complaint asserts at least claim 2 Compl. ¶51
  • Accused Features: The accused "NFC Front-end components" are alleged to perform the claimed method during contactless credit card payment transactions Compl. ¶51

III. The Accused Instrumentality

  • Product Identification: The accused instrumentalities are identified as "NFC Front-end components, including without limitation the NXP PN512 NFC Front-End," and other components with "materially similar" functionality Compl. ¶31
  • Functionality and Market Context: The complaint alleges these components are used by Defendant "to perform the claimed method during contactless credit card payment transactions at a point of sale" Compl. ¶31 The allegations suggest these components are integral to Defendant's point-of-sale infrastructure and are used in the "regular course of its business operations for processing NFC payment transactions" Compl. ¶33 No further technical details on the operation of the accused components are provided in the complaint. No probative visual evidence provided in complaint.

IV. Analysis of Infringement Allegations

The complaint states that claim chart exhibits (Exhibits A-1, B-1, etc.) are attached to demonstrate infringement Compl. ¶¶32, 37 As these exhibits were not provided with the complaint document, a summary of the narrative infringement theory is provided below in lieu of a claim chart table.

  • '201 Patent Infringement Allegations
    The complaint alleges that when Defendant's point-of-sale systems use the accused NFC front-end components to process a contactless payment, those components necessarily perform the method of claim 14 Compl. ¶¶31, 33 The theory suggests that the NFC component inherently must detect the signaling protocol of the presented NFC payment card (the "connected bus") and automatically configure its internal circuitry to communicate with that card using the appropriate protocol, thereby practicing the claimed steps of detecting and configuring Compl. ¶31

  • '071 Patent Infringement Allegations
    The complaint alleges that the accused NFC front-end components, during a contactless payment transaction, directly infringe method claim 15 Compl. ¶¶36, 38 The infringement narrative implies that the processor within the accused components acts as a master device to manage the communication protocol. This involves executing a real-time process of generating control signals, changing its internal state based on inputs from the payment card, and driving output signals onto the bus, which corresponds to the method steps recited in claim 15 Compl. ¶36

  • Identified Points of Contention:

    • Scope Questions: A primary point of contention may be whether the term "bus" as used in the patents, developed in the context of wired peripheral connections like USB and PS/2, can be construed to read on the contactless, radio-frequency interface of an NFC system.
    • Technical Questions: The complaint provides a conclusory link between the accused products and the claimed methods. A key question will be whether discovery shows that the accused NFC components, such as the NXP PN512, actually perform the specific steps of "automatically selecting" a protocol based on bus signaling as required by claim 14 of the '201 patent, or if they function as a "processor" executing state-based instructions as required by claim 15 of the '071 patent.

V. Key Claim Terms for Construction

  • '201 Patent, Claim 14

    • The Term: "automatically selects"
    • Context and Importance: This term is central to the novelty of the '201 patent. The infringement case depends on whether the accused NFC system "automatically selects" a protocol in the manner envisioned by the patent. Practitioners may focus on this term because the mechanism for establishing an NFC link may be technically distinct from the patent's description of detecting a wired bus protocol.
    • Intrinsic Evidence for Interpretation:
      • Evidence for a Broader Interpretation: The specification states, "The circuit 100 may be configured to automatically select (e.g., without user input) the USB mode in response to a first state... or the PS/2 mode in response to a second state" '201 Patent, col. 2:51-56 This could support an interpretation covering any selection process that does not require user intervention.
      • Evidence for a Narrower Interpretation: The patent describes a specific implementation where the selection is tied to detecting a "long low state" on the data lines, which is a specific electrical condition of a wired bus '201 Patent, col. 2:58-61 This could support a narrower construction limited to selection based on detecting specific, predefined electrical states of a physical bus.

  • '071 Patent, Claim 15

    • The Term: "processor"
    • Context and Importance: Claim 15 recites a method performed by a "processor" that has a "current state" and progresses to a "next state." The definition of "processor" will be critical. If construed narrowly to require a programmable, instruction-based architecture, it may not read on a hardwired state machine; if construed broadly, it could.
    • Intrinsic Evidence for Interpretation:
      • Evidence for a Broader Interpretation: The summary of the invention refers more generally to a "circuit" and a "generic interface," and the abstract also refers to a "circuit" '071 Patent, abstract '071 Patent, col. 2:31 '071 Patent, col. 2:40-41 This language may support a broader definition encompassing any logic circuit that manages states.
      • Evidence for a Narrower Interpretation: The detailed description describes the invention as a "specialized input-output processor with two instructions" and notes it can be "controlled by instructions in a control store" '071 Patent, col. 5:5-7 '071 Patent, col. 2:1 This may support a narrower definition requiring a specific instruction-based architecture rather than any sequential logic.

VI. Other Allegations

The complaint does not contain explicit counts or factual allegations for indirect infringement or willful infringement. It requests a finding of an exceptional case under 35 U.S.C. § 285 in its prayer for relief Compl., p. 13, prayer C

VII. Analyst's Conclusion: Key Questions for the Case

  1. A core issue will be one of technological scope: Can the claims of the patents-in-suit, which are grounded in the technical context of wired computer peripheral interfaces (USB/PS/2) from the early 2000s, be construed to cover modern, contactless Near Field Communication (NFC) protocols used in payment systems? The construction of terms like "connected bus" and "processor" will be determinative.

  2. A second central issue will be one of infringement evidence: As the complaint relies on high-level assertions that the accused NFC components perform the claimed methods, the case will depend heavily on what discovery reveals about the actual, internal operation of these components. The dispositive question will be whether the accused devices perform the specific, step-by-step methods recited in the asserted claims when processing a payment.

  3. Finally, given that four of the five patents are expired and the infringement period is closed, a key focus will be the quantification of past damages. This will raise questions about the appropriate reasonable royalty rate and the total royalty base, which is limited to infringing use within the specific, historical time windows defined in the complaint.