Alderian Tech LLC v. OnePlus Technology Shenzhen Co Ltd

I. Executive Summary and Procedural Information

• Case Name: Alderian Technologies LLC v. OnePlus Technology (Shenzhen) Co., Ltd.
• Parties & Counsel:
  • Plaintiff: Alderian Technologies LLC (Texas)
  • Defendant: OnePlus Technology (Shenzhen) Co., Ltd. (China)
  • Plaintiff's Counsel: Rubino IP
• Case Identification: 2:26-cv-00430, E.D. Tex., 05/26/2026
• Venue Allegations: Venue is alleged based on Defendant's business in Texas, including sales through authorized retailers within the Eastern District of Texas, distribution of products, and deriving substantial revenue from the district. The complaint also notes that Defendant has previously admitted to transacting business in the district in a prior patent case.
• Core Dispute: Plaintiff alleges that Defendant's smartphones and tablets, which incorporate video encoding and compression technology, infringe two patents related to predictive video coding and mixed-resolution compression methods.
• Technical Context: The technology concerns methods for efficiently compressing video data, a critical function for modern mobile devices that handle high-resolution video streaming, recording, and storage.
• Key Procedural History: The complaint alleges that Defendant had knowledge of the '387 Patent family because a related entity, OPPO Guangdong Mobile Communications Co., Ltd., cited it in a foreign patent application. It also asserts that Defendant previously consented to jurisdiction in the Eastern District of Texas in a separate litigation.

Case Timeline

Date	Event
2005-09-15	'172 Patent Priority Date
2015-06-16	'172 Patent Issue Date
2018-10-26	'387 Patent Priority Date
2020-05-05	'387 Patent Issue Date
2022-07-07	Date of foreign patent application filing by OPPO that cited the '387 Patent family
2026-05-26	Complaint Filing Date

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

U.S. Patent No. 10,645,387 - "Predictive Quantization Coding Method and Video Compression System"

• Patent Identification: U.S. Patent No. 10,645,387, "Predictive Quantization Coding Method and Video Compression System," issued May 5, 2020. Compl. ¶11

The Invention Explained

• Problem Addressed: The patent's background describes issues with existing video compression methods, including the misjudgment of prediction pixels, underutilization of correlation between pixel textures, and the inability to further reduce theoretical entropy and complexity, which limits data compression ratios. Compl. ¶15 '387 Patent, col. 1:32-41
• The Patented Solution: The invention proposes a multi-step predictive coding method. The process involves dividing a pixel into its components (e.g., R, G, B), analyzing "texture direction gradients" of surrounding pixels to determine reference pixels, calculating a "prediction residual" (the difference between the actual and predicted pixel value), and then performing a two-stage rate-distortion optimization on the resulting data to generate a compressed code stream. Compl. ¶23 '387 Patent, abstract '387 Patent, col. 4:1-19
• Technical Importance: This method aims to improve compression efficiency by using more detailed analysis of local image texture to make more accurate pixel predictions, thereby reducing the amount of data needed to encode a video frame. Compl. ¶16 '387 Patent, col. 3:21-27

Key Claims at a Glance

• The complaint asserts at least independent claim 1. Compl. ¶22
• The essential elements of independent claim 1 include:
  • dividing a pixel to be processed into a plurality of pixel components;
  • obtaining one pixel component to be processed;
  • obtaining texture direction gradients of the pixel component;
  • obtaining reference pixels according to the texture direction gradients and positional relationships;
  • obtaining a prediction residual of the pixel component;
  • repeating the process to form a prediction residual code stream;
  • dividing the code stream into quantization units; and
  • obtaining first and second rate distortion optimizations to create a final quantization residual code stream. Compl. ¶23 '387 Patent, claim 1
• The complaint does not explicitly reserve the right to assert dependent claims.

U.S. Patent No. 9,060,172 - "Methods and Systems for Mixed Spatial Resolution Video Compression"

• Patent Identification: U.S. Patent No. 9,060,172, "Methods and Systems for Mixed Spatial Resolution Video Compression," issued June 16, 2015. Compl. ¶12

The Invention Explained

• Problem Addressed: The patent addresses the general need for improved video compression efficiency to reduce the quantity of data required to represent video content while minimizing perceptible quality loss. Compl. ¶17 '172 Patent, col. 1:20-25 '172 Patent, col. 1:50-55
• The Patented Solution: The invention describes a "mixed spatial resolution" encoding method. An original full-resolution frame is processed along two parallel paths. In one path, it is encoded at full resolution. In the other, it is downsampled, encoded at a reduced resolution, and then upsampled. The system then determines a "deviation" for both reconstructed frames by comparing them to the original. Finally, it selects and outputs the coded data for the version (full or reduced resolution) that exhibits the lesser deviation. Compl. ¶40 '172 Patent, abstract '172 Patent, col. 2:1-25
• Technical Importance: This adaptive approach allows a video codec to dynamically choose between sending a full-resolution or a lower-resolution version of a frame, potentially saving significant bandwidth when the quality loss from downsampling is not perceptually significant. Compl. ¶17 '172 Patent, col. 1:62-66

Key Claims at a Glance

• The complaint asserts at least independent claim 1. Compl. ¶39
• The essential elements of independent claim 1 include:
  • generating a reconstructed full resolution frame and corresponding coded data;
  • generating an upsampled reconstructed reduced spatial resolution frame and corresponding coded data;
  • determining a first deviation by comparing the reconstructed full resolution frame to the original;
  • determining a second deviation by comparing the upsampled reconstructed reduced spatial resolution frame to the original; and
  • outputting the coded data for the full resolution frame if its deviation is less than the second, and otherwise outputting the coded data for the reduced resolution frame. Compl. ¶40 '172 Patent, claim 1
• The complaint does not explicitly reserve the right to assert dependent claims.

III. The Accused Instrumentality

Product Identification

• The Accused Products are OnePlus smartphones and tablets, including but not limited to the OnePlus 9, OnePlus 9 Pro, OnePlus 10 Pro, OnePlus 11, OnePlus 12, and OnePlus Pad series. The OnePlus Pad, equipped with a MediaTek Dimensity 9000 System-on-Chip (SoC), is identified as an exemplary infringing product for both asserted patents. Compl. ¶16 Compl. ¶22 Compl. ¶39

Functionality and Market Context

• The complaint alleges that the accused functionality is implemented in the SoCs, chipsets, and software within the Accused Products. Compl. ¶16 Compl. ¶17 These components are alleged to utilize hardware and software encoders that perform video compression, including predictive quantization coding and mixed spatial resolution techniques, which are functionalities required by video standards like HEVC. Compl. ¶23 Compl. ¶24 Compl. ¶42 Compl. ¶43 The complaint presents a screenshot of a MediaTek video codec ("mtk-vcodec") driver file structure to support the presence of video encoder ("venc") components in the accused devices. Compl. p. 8

IV. Analysis of Infringement Allegations

'387 Patent Infringement Allegations

Claim Element (from Independent Claim 1)	Alleged Infringing Functionality	Complaint Citation	Patent Citation
(a) dividing a pixel to be processed into a plurality of pixel components...	The accused HEVC codecs process blocks of data in a region, which are composed of pixels with multiple components.	¶23	col. 2:7-12
(c) obtaining texture direction gradients of the pixel component to be processed	The accused HEVC codecs use intra-picture prediction algorithms that process blocks according to neighboring regions/pixels to predict the value of the current pixel.	¶23	col. 4:59-62
(d) obtaining reference pixels according to the texture direction gradients and positional relationships...	The intra-picture prediction algorithm uses neighboring pixels as references to predict the current pixel's value.	¶23	col. 4:3-9
(e) obtaining a prediction residual of the pixel component to be processed according to the reference pixels	The prediction algorithm implicitly generates a residual by predicting a pixel value and comparing it to the actual value.	¶23	col. 7:31-39
(f) ...forming a prediction residual code stream...	The process of predicting and obtaining residuals for pixels in the image forms a prediction residual code stream.	¶23	col. 4:10-15
(g) dividing the prediction residual code stream into a plurality of quantization units...	The prediction residual code stream is divided into quantization units for further processing.	¶23	col. 7:48-51
(h) obtaining first rate distortion optimizations and second rate distortion optimizations...to obtain a quantization residual code stream	The complaint alleges that the Accused Products perform first and second rate distortion optimizations to generate the final code stream.	¶23	col. 7:55-59

• Identified Points of Contention:
  • Scope Questions: A central question may be whether the term "texture direction gradients," as described with specificity in the patent, can be read to cover the more general, standardized intra-prediction modes used in HEVC. The complaint's infringement theory appears to equate compliance with the HEVC standard with infringement of the patent's specific method.
  • Technical Questions: The complaint alleges the performance of "first rate distortion optimizations and second rate distortion optimizations." A key question will be what evidence supports the existence of this specific two-step optimization process in the accused MediaTek codecs, as the patent details a particular method for these optimizations. Compl. ¶23 '387 Patent, col. 8:1-11 '387 Patent, col. 9:1-10

'172 Patent Infringement Allegations

Claim Element (from Independent Claim 1)	Alleged Infringing Functionality	Complaint Citation	Patent Citation
generating a reconstructed full resolution frame and coded data corresponding to the reconstructed full resolution frame from an original full resolution frame	The complaint alleges the OnePlus Pad performs this step as part of its video compression method.	¶40	col. 2:4-6
generating an upsampled reconstructed reduced spatial resolution frame and coded data...from the original full resolution frame	The complaint alleges the OnePlus Pad performs this step, which involves downsampling, encoding, reconstructing, and upsampling.	¶40	col. 2:6-9
determining a first deviation by comparing at least one characteristic in the reconstructed full resolution frame with said at least one characteristic in the original full resolution frame	The complaint alleges the OnePlus Pad performs this comparison.	¶40	col. 2:9-15
determining a second deviation by comparing said at least one characteristic in the upsampled reconstructed reduced spatial reduced resolution frame...	The complaint alleges the OnePlus Pad performs this second comparison.	¶40	col. 2:15-22
outputting the coded data corresponding to the reconstructed full resolution frame when the first deviation is less than the second deviation; otherwise outputting the coded data...	The complaint alleges the OnePlus Pad makes this selection and outputs the corresponding data.	¶40	col. 2:22-25

• Identified Points of Contention:
  • Scope Questions: The patent claims a method involving a decision-making "switch" based on comparing two encoding paths. The complaint alleges this entire process occurs. Compl. ¶40 A question for the court will be whether simply having an HEVC-compliant encoder, without more, is sufficient to plausibly suggest the existence of this specific dual-path comparison and selection architecture.
  • Technical Questions: What evidence does the complaint provide that the Accused Products actually perform the claimed dual-path encoding and comparison? The infringement allegations track the claim language but do not appear to offer specific technical details about how the accused MediaTek codecs implement this selection logic, raising the question of whether this non-standard functionality exists in the accused products.

V. Key Claim Terms for Construction

For the '387 Patent

• The Term: "obtaining first rate distortion optimizations and second rate distortion optimizations"
• Context and Importance: This term describes the final and most complex stage of the claimed method. Infringement requires proving that the accused system performs not just one, but this specific two-stage optimization process. Practitioners may focus on this term because the patent's specification describes a highly detailed, multi-part calculation for it, which may not be present in a standard HEVC implementation.
• Intrinsic Evidence for Interpretation:
  • Evidence for a Broader Interpretation: A party might argue this covers any encoder that uses an iterative or multi-pass rate control algorithm to refine its output, a common general concept in video compression.
  • Evidence for a Narrower Interpretation: A party would likely point to the specification's detailed description of calculating a "fluctuation coefficient" ("k") based on "first residual loss," applying it with a "fluctuation state" ("CT"), and then calculating the second rate distortion optimization ("RDO2"). '387 Patent, col. 8:56-65 '387 Patent, col. 9:1-10 '387 Patent, col. 9:30-44 This suggests a very specific, non-generic process.

For the '172 Patent

• The Term: "deviation"
• Context and Importance: The entire decision-making process of the '172 patent hinges on comparing a "first deviation" and a "second deviation." The definition of this term is therefore critical to determining whether the accused comparison is the one claimed.
• Intrinsic Evidence for Interpretation:
  • Evidence for a Broader Interpretation: The specification suggests "deviation" can be based on distortion ("D"), and gives "sum of squared differences" as an example calculation for "D", a standard metric. '172 Patent, col. 3:20-29 This could support a broad interpretation covering any standard quality metric.
  • Evidence for a Narrower Interpretation: The specification also defines a more complex "cost (J)" as J=D+λR, which incorporates both distortion ("D") and bit rate ("R"). '172 Patent, col. 3:15-18 A party could argue that "deviation" should be construed as this more comprehensive cost function, not just a simple distortion metric.

VI. Other Allegations

• Indirect Infringement: The complaint alleges induced infringement for both patents, stating that OnePlus supplies customers with instructions, such as user manuals, on how to operate the infringing technology. Compl. ¶31 Compl. ¶47 A screenshot of the OnePlus "User Manual" webpage is provided as supporting evidence. Compl. p. 12 Compl. p. 18 The complaint also pleads contributory infringement, alleging the accused video encoders are material to the inventions, are not staple articles of commerce, and are known by OnePlus to be especially adapted for infringement. Compl. ¶33 Compl. ¶49
• Willful Infringement: The complaint alleges willful infringement based on knowledge of the patents, at least from the date the complaint was filed. Compl. ¶30 Compl. ¶46 For the '387 Patent, it further alleges pre-suit knowledge or willful blindness, based on a policy of not reviewing third-party patents and the fact that a related company (OPPO) cited the '387 Patent family in a foreign patent application. Compl. ¶30, fn. 7

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

• A central evidentiary question will be one of algorithmic implementation: does the accused video encoding system, alleged to be compliant with the HEVC standard, actually perform the specific, non-standard, dual-path encoding and comparison-based selection process required by claim 1 of the '172 Patent?
• A key issue of claim scope will be one of functional specificity: for the '387 Patent, can the general intra-prediction modes of a standard HEVC encoder be construed as practicing the patent's highly specific, multi-step method for calculating "texture direction gradients" and performing "first and second rate distortion optimizations," or is the claimed invention a distinct, more complex process?
• The case may also turn on a fundamental question of pleading sufficiency: are the infringement allegations, which rely heavily on high-level descriptions of industry standards (HEVC) and the identification of general software components ("mtk-vcodec"), sufficient to plausibly demonstrate that the detailed and specific steps of the asserted patent claims are actually performed by the accused products?