Err Content IP LLC v. Starz Entertainment LLC

I. Executive Summary and Procedural Information

• Parties & Counsel:
  • Plaintiff: ERR Content IP, LLC (Delaware)
  • Defendant: Starz Entertainment LLC (Colorado)
  • Plaintiff's Counsel: Law Office of David J. Hoffman
• Case Identification: 1:26-cv-02271, S.D.N.Y., 05/29/2026
• Venue Allegations: Plaintiff alleges venue is proper because Defendant maintains a regular and established place of business in the district, commits acts of alleged infringement in the district, and advertises, markets, and sells its services to residents of the district.
• Core Dispute: Plaintiff alleges that Defendant's Starz streaming service, specifically its functionality for "casting" content from a mobile device to a connected TV, infringes a patent related to providing main and extra content to a user across two separate devices.
• Technical Context: The technology concerns the "second screen" experience, where a user interacts with a primary media device (like a TV) using a secondary device (like a smartphone) to control content or view supplemental information.
• Key Procedural History: The filing is a First Amended Complaint. The complaint notes that Plaintiff and its predecessors have entered into settlement licenses with other entities, but asserts that none of these licenses involved an admission of infringement or the production of a patented article, which may be relevant to potential defenses regarding patent marking.

Case Timeline

Date	Event
2012-04-26	'542 Patent Priority Date
2020-07-21	'542 Patent Issued
2026-05-29	Complaint Filing Date

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

U.S. Patent No. 10,721,542 - "Method and device for providing a main content and an extra content to a user through reference item"

• Patent Identification: U.S. Patent No. 10,721,542, "Method and device for providing a main content and an extra content to a user through reference item," issued July 21, 2020.

The Invention Explained

• Problem Addressed: The patent describes a problem with prior art systems where accessing "extra content" (e.g., supplemental information, metadata) related to a "main content" (e.g., a TV show) required the user to navigate away from the main content, often on the same device Compl. ¶¶16-17 '542 Patent, col. 1:33-40 This was particularly cumbersome when the main content and extra content originated from different sources, such as a television broadcast and an internet server, and interaction between multiple devices was limited or not possible '542 Patent, col. 1:43-56
• The Patented Solution: The invention proposes a method to decouple the viewing of main content from the interaction with extra content by using two devices. A first device (e.g., a TV) displays the main content, while a "reference item" broadcast with it is forwarded to a second device (e.g., a smartphone) '542 Patent, abstract This forwarding can be accomplished by the second device "scanning" the reference item from the first device's screen '542 Patent, col. 4:4-9 The second device then uses this reference item to retrieve and display the corresponding "extra content" from a different source, allowing the user to view both simultaneously on separate screens '542 Patent, col. 2:36-39
• Technical Importance: The technology aims to improve the user experience for "second screen" applications by enabling seamless interaction with supplementary content without interrupting the primary viewing on the main screen Compl. ¶19

Key Claims at a Glance

• The complaint asserts independent claim 1 and dependent claims 3, 4, 9, and 10 Compl. ¶27
• Independent Claim 1 of the '542 Patent recites a method with the following essential elements:
  • Receiving a specific main content and associated metadata from a first source and displaying the main content on a first device.
  • Forwarding the metadata to a second device, where the forwarding is "executed by scanning said metadata by said second device."
  • The second device receiving "extra content" from a second, different source.
  • Simultaneously displaying the main content on the first device and the extra content on the second device.
  • Changing the extra content in correspondence with changes to the main content.
  • A delay mechanism where, upon selection, the extra content does not change with the main content until a "confirmation or input" is received from a "command key" on the first device, which then causes the second device to display the new extra content.
• The complaint reserves the right to assert additional claims Compl. ¶41

III. The Accused Instrumentality

Product Identification

The Accused Instrumentalities include the "Starz streaming platform, Starz mobile applications, Starz website, Starz content-selection interfaces, Starz Chromecast/casting features, Starz connected-TV playback functionality," and related backend systems Compl. ¶23

Functionality and Market Context

The complaint alleges that the accused functionality is triggered when a user operates the Starz application on a "mobile device" (identified as the "first device") and uses the "Cast" feature to play video content on a "connected TV" (identified as the "second device") Compl. ¶¶24-25 The mobile device acts as a controller, and the complaint alleges this system provides a method of displaying content on two devices that maps to the patent's claims Compl. ¶24 The complaint provides a screenshot showing the Starz content interface on both the mobile and connected-TV displays to illustrate the accused functionality Compl. ¶32

IV. Analysis of Infringement Allegations

'542 Patent Infringement Allegations

Claim Element (from Independent Claim 1)	Alleged Infringing Functionality	Complaint Citation	Patent Citation
receiving a specific main content and metadata from a first source and displaying said specific main content on a first device...	Starz provides video content and associated metadata (e.g., a title such as "Ballerina") to a user's mobile device, which displays the content.	¶28	col. 8:50-54
forwarding said metadata to a second device, wherein: the forwarding of said metadata is executed by scanning said metadata by said second device,	The connected TV allegedly "reads or 'scans'" video information forwarded from the mobile device to play the video. The complaint also pleads in the alternative that electronic "handshaking, session, token, content identifier, URL, deep link, or other metadata exchange" is an equivalent to "scanning."	¶¶29-30	col. 8:59-62
the second device receives said extra content from a second source...	The connected TV receives and plays the Starz video, which the complaint identifies as the "extra content," using a media source in the connected-TV environment, identified as the "second source."	¶31	col. 9:1-2
said specific main content is displayed on said first device while said extra content is displayed on said second device;	The mobile device displays the selected video (main content) while the connected TV displays the corresponding video (extra content).	¶32	col. 9:5-8
wherein the extra content changes in correspondence to a change of the specific main content;	When a user selects a different Starz title on the mobile device, the content playing on the connected TV automatically updates to match the new selection.	¶33	col. 9:9-12
wherein the first source is different from the second source;	The complaint alleges the mobile device's media session ("first source") is distinct from the content stream supplied to the connected TV ("second source").	¶34	col. 9:13-14
wherein, when the extra content is selected, the extra content does not change...until such time as a confirmation or input is received...	The content on the connected TV does not change merely by browsing to a new title on the mobile device; it is delayed until the user provides an input, such as selecting to "play the STARZ content on your connected TV."	¶35	col. 9:15-25
wherein the confirmation or input is initially received at a command key of the first device...	The user's input is initially received via the "casting icon or Cast button" on the mobile device, which the complaint identifies as the "command key."	¶36	col. 9:26-32

• Identified Points of Contention:
  • Scope Questions: A central dispute may arise over the term "scanning." Claim 1 requires that the forwarding of metadata is "executed by scanning." The complaint alleges the accused system "scans" information but also posits that non-optical, protocol-based data exchange (e.g., handshaking, token exchange) is equivalent Compl. ¶30 This raises the question of whether the claim term "scanning," which the specification links to visual codes like QR-codes '542 Patent, col. 4:7-9, can be construed to encompass electronic communication protocols, or if Plaintiff must rely on the doctrine of equivalents.
  • Technical Questions: The complaint's mapping of the accused system to the claim terms raises a potential technical mismatch. It defines "extra content" as the video playing on the connected TV Compl. ¶25 However, the patent specification describes "extra content" as supplemental information used for "deepening the subject of the main content" '542 Patent, col. 1:37-39, distinct from the main content itself. The question is whether displaying the same primary video on a second screen constitutes "extra content" as contemplated by the patent.

V. Key Claim Terms for Construction

• The Term: "scanning"

  • Context and Importance: This term appears to be the lynchpin of the direct infringement allegation. The accused Chromecast-like functionality likely relies on network discovery protocols (e.g., DIAL), not optical scanning. The viability of the infringement claim may depend on whether "scanning" is interpreted broadly enough to cover such protocols. Practitioners may focus on this term because the complaint itself acknowledges the potential for a non-optical, "equivalent" functionality Compl. ¶30
  • Intrinsic Evidence for a Broader Interpretation: The patent's overall purpose is to enable multi-device interaction. One could argue that "scanning" is merely one example of how metadata is forwarded, and that the inventive concept is the forwarding itself. The specification discusses forwarding data "over a wired or wireless connection" generally '542 Patent, col. 4:1-3
  • Intrinsic Evidence for a Narrower Interpretation: The specification explicitly links "scanning" to visual methods. It describes "scanning the reference item displayed on the first device via said second device" '542 Patent, col. 4:4-6 and provides "QR-codes, bar codes or optical machine-readable data" as examples '542 Patent, col. 4:7-9 The claim itself states forwarding "is executed by" scanning, which may suggest it is the required method, not just an example.

• The Term: "extra content"

  • Context and Importance: The definition of this term is critical because the complaint alleges the primary video playing on the TV is the "extra content" Compl. ¶25 If "extra content" is construed to mean only supplemental information that is different from the "main content," the infringement theory may fail.
  • Intrinsic Evidence for a Broader Interpretation: The term is not given a strict, limiting definition in the claims. The patent's abstract describes displaying the extra content "together with said main content on said first device" or displaying it on a "second device," without strictly forbidding the extra content from being the same as the main content.
  • Intrinsic Evidence for a Narrower Interpretation: The background section distinguishes the two, stating "extra content means any kind of additional information or data related to the main audio video content" '542 Patent, col. 1:37-39 Figure 2 illustrates this concept by showing geometric shapes as "main content" (100) and text describing them as "extra content" (101). This suggests "extra content" is supplemental to, and different from, the "main content."

VI. Other Allegations

• Indirect Infringement: The complaint alleges induced infringement based on Defendant's support pages and user interfaces that allegedly instruct customers on how to use the accused casting features Compl. ¶43 It also alleges contributory infringement, stating that the casting functionality is a material part of the invention, is especially adapted for infringing use, and is not a staple article of commerce Compl. ¶44
• Willful Infringement: Willfulness is alleged based on Defendant's knowledge of the patent and its alleged infringement "at least as of the filing and/or service of the original complaint" Compl. ¶42 The complaint further alleges that Defendant made no attempt to design around the patent and lacks a reasonable basis to believe the patent is invalid or not infringed Compl. ¶¶45-46

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

• A core issue will be one of definitional scope: can the claim term "scanning," which is described in the patent with examples of visual and optical data capture, be construed to cover the non-optical, network-protocol-based handshaking used by modern casting technologies? Plaintiff's case may depend heavily on this construction or, alternatively, on the doctrine of equivalents.
• A second central question will be one of technical mapping: does the accused functionality, which involves sending the same primary video stream to a second screen for viewing, meet the patent's "main content" / "extra content" paradigm? The court may need to decide if "extra content" must be supplemental information distinct from the "main content," as suggested by the patent's specification and figures.
• An underlying issue may be one of patent eligibility: the complaint includes extensive pre-emptive arguments that the patent claims a specific technological improvement and is not directed to an abstract idea Compl. ¶¶48-53 This suggests Plaintiff anticipates a challenge under 35 U.S.C. § 101, and the court will likely have to determine if the claimed method is a patent-eligible application or an abstract process of coordinating information.