Context Directions LLC v. Auto Web Expo Inc

I. Executive Summary and Procedural Information

• Parties & Counsel:
  • Plaintiff: Context Directions LLC (Delaware)
  • Defendant: Auto Web Expo, Inc. (Texas)
  • Plaintiff's Counsel: Direction IP Law
• Case Identification: 2:26-cv-00732, E.D. Tex., 08/21/2026
• Venue Allegations: Venue is alleged to be proper in the Eastern District of Texas because the Defendant is a Texas corporation and maintains a place of business within the district where a portion of the alleged infringements occurred.
• Core Dispute: Plaintiff alleges that Defendant's sale of certain used Audi and Jeep vehicles infringes two patents related to methods for a mobile device to efficiently detect its context, such as being inside a moving vehicle.
• Technical Context: The patents address the challenge of enabling mobile devices to be aware of their surroundings and user activity in an energy-efficient manner, which is crucial for battery-powered electronics.
• Key Procedural History: The two asserted patents are directly related; U.S. Patent No. 10,142,791 is a continuation of the application that issued as U.S. Patent No. 9,807,564 and shares an identical specification. The '791 patent was issued subject to a terminal disclaimer, which may limit its enforceable term to that of the earlier '564 patent.

Case Timeline

Date	Event
2012-02-17	Priority Date for '564 and '791 Patents
2017-10-31	U.S. Patent No. 9,807,564 Issues
2018-11-27	U.S. Patent No. 10,142,791 Issues
2020-01-01	Earliest Model Year of an Accused Product (est.)
2026-08-21	Complaint Filing Date

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

U.S. Patent No. 9,807,564 - "Method for Detecting Context of a Mobile Device and a Mobile Device with a Context Detection Module"

• Patent Identification: U.S. Patent No. 9,807,564, titled "Method for Detecting Context of a Mobile Device and a Mobile Device with a Context Detection Module," issued on October 31, 2017 (the "'564 Patent").

The Invention Explained

• Problem Addressed: The patent's background section describes the problem that prior art methods for detecting a mobile device's context were often inefficient Compl. ¶12 For example, using GPS for speed analysis consumes large amounts of power, while using cell tower signals can be slow and produce false positives Compl. ¶12 '564 Patent, col. 2:5-22 This inefficiency limits the utility of context-aware features on battery-powered devices.
• The Patented Solution: The invention proposes a method and device that uses a hierarchical system of sensor groups to save power Compl. ¶13 The system starts by using low-power sensors to perform an initial, less-certain classification '564 Patent, col. 4:3-14 Only if this initial classification suggests a particular context (e.g., movement) are higher-power, more accurate sensors (like a GPS receiver) activated for confirmation '564 Patent, col. 4:10-18 '564 Patent, Fig. 3 The system can also adapt the lower-level classifiers based on the results from the higher-level classifiers, improving efficiency over time '564 Patent, col. 4:15-18
• Technical Importance: This hierarchical approach was designed to enable more sophisticated and timely context detection on mobile devices without unacceptably draining the battery '564 Patent, col. 1:35-39

Key Claims at a Glance

• The complaint asserts independent claims 1 and 23 Compl. ¶14
• Independent Claim 1 recites a mobile device comprising:
  • A plurality of sensors and a plurality of sensor groups arranged in a hierarchy.
  • A plurality of classifiers, each assigned to a sensor group to evaluate contexts.
  • A context detection module configured to:
    • Activate classification using a classifier for a first, lowest-level sensor group.
    • Activate classification using a classifier for a second, higher-level sensor group after a result from the first group.
    • Adapt the configuration of the first group's classifier based on a result from the second group's classifier.
• The complaint does not specify which, if any, dependent claims it may assert.

U.S. Patent No. 10,142,791 - "Method and System for Context Awareness of a Mobile Device"

• Patent Identification: U.S. Patent No. 10,142,791, titled "Method and System for Context Awareness of a Mobile Device," issued on November 27, 2018 (the "'791 Patent").

The Invention Explained

• Problem Addressed: As noted in the complaint, the '791 Patent shares an identical specification with the '564 Patent Compl. ¶21 It therefore addresses the same problem of high power consumption and inefficiency in prior art context-detection systems for mobile devices '791 Patent, col. 2:5-22
• The Patented Solution: The patented solution is a hierarchical and adaptive sensor management system. It prioritizes the use of low-power sensors and only engages more power-intensive sensors when necessary, based on the findings of the lower-level groups '791 Patent, abstract This structure is intended to create an energy-efficient context detection system '791 Patent, col. 3:56-65 The system is depicted in figures showing hierarchical groups of sensors (e.g., Group 1, Group 2) and corresponding classifiers '791 Patent, Fig. 2
• Technical Importance: The solution aims to make continuous, reliable context awareness a practical feature for portable, battery-constrained devices by minimizing the energy cost of sensing '791 Patent, col. 5:44-51

Key Claims at a Glance

• The complaint asserts independent claim 1 Compl. ¶22
• Independent Claim 1 recites a mobile device comprising:
  • A plurality of sensors and a plurality of sensor groups arranged in a hierarchy.
  • A plurality of classifiers, each assigned to a sensor group to evaluate contexts.
  • A configuration to:
    • Activate a classification by a classifier for a first, lowest-level sensor group.
    • Activate a classification by a classifier for a second sensor group after a result from the first group's classifier.
    • Adapt the configuration of the first group's classifier based on a result from the second group's classifier.
• The complaint does not specify which, if any, dependent claims it may assert.

III. The Accused Instrumentality

Product Identification

• The complaint identifies a list of used vehicles as the accused instrumentalities, including various Audi and Jeep models from model years 2020 through 2025 Compl. ¶14 Compl. ¶22 These are collectively referred to as the "'564 Patent Accused Products" and "'791 Patent Accused Products" Compl. ¶14 Compl. ¶22

Functionality and Market Context

• The complaint alleges that the Defendant, Auto Web Expo, Inc., infringes by "selling, using, and/or offering for sale" the accused vehicles Compl. ¶14 Compl. ¶22 The complaint does not provide any specific details about the technical functionality of the accused vehicles or identify which component (e.g., infotainment system, onboard diagnostics) is alleged to practice the claimed invention. No probative visual evidence provided in complaint.

IV. Analysis of Infringement Allegations

The complaint alleges that the "sale, use, or offer of sale of the Accused Products infringe at least Claims 1 and 23 of '564 Patent" and "at least claim 1 of the '791 Patent" Compl. ¶14 Compl. ¶22 The complaint states that these infringement allegations are detailed in attached claim charts (Exhibits B-C and E-F), which were not provided with the filed complaint document Compl. ¶14 Compl. ¶22 As such, the complaint's narrative does not contain specific element-by-element details of the alleged infringement.

• Identified Points of Contention:
  • Scope Question: A central issue may be whether the vehicle infotainment systems within the accused cars qualify as a "mobile device" as that term is used in the patents. The patents' specification describes the invention in the context of solving power-consumption problems for battery-operated, portable devices like phones and tablets '564 Patent, col. 1:29-34 '564 Patent, col. 2:15-22, whereas a vehicle's system is integrated and powered by the car's electrical system.
  • Technical Question: The core of the patented invention is the specific hierarchical and adaptive process for activating and managing sensor groups to save power. A key factual question for the court will be whether the accused vehicle systems actually implement this specific multi-level classification and adaptation method, as opposed to other methods of sensor fusion or context detection. The complaint provides no technical evidence on this point.

V. Key Claim Terms for Construction

• The Term: "mobile device" (appears in claim 1 of both the '564 and '791 patents)
• Context and Importance: This term's construction is critical because the Plaintiff has accused vehicles, which are not traditionally considered "mobile devices" in the same vein as smartphones or tablets. The viability of the infringement claim may depend on whether a vehicle's integrated infotainment system can be construed as a "mobile device" under the patents.
• Intrinsic Evidence for Interpretation:
  • Evidence for a Broader Interpretation: The specification provides a non-exhaustive list of "mobile devices" that includes "mobile phones, laptops, PDAs, tablets, watches, music players, satellite navigation devices, cameras" '564 Patent, col. 1:29-32 Plaintiff may argue that "satellite navigation devices" suggests the term is broad enough to cover systems integrated into vehicles.
  • Evidence for a Narrower Interpretation: The patent repeatedly frames the problem being solved as one of reducing energy consumption to extend the operating time of a "battery-powered mobile device" '564 Patent, col. 2:10-15 '564 Patent, col. 2:65-67 A defendant may argue that because a car's infotainment system is not constrained by a small, portable battery in the same way a phone is, it falls outside the scope and purpose of the invention, suggesting "mobile device" should be construed more narrowly to mean a portable, personally-carried device.
• The Term: "arranged according to a hierarchy" (appears in claim 1 of both patents)
• Context and Importance: This term describes the fundamental architecture of the claimed invention. Practitioners may focus on this term because its definition will determine how structured the relationship between sensor groups must be to infringe. The dispute will likely concern whether any tiered system meets the "hierarchy" requirement or if it must conform to the specific power-saving logic described in the patent.
• Intrinsic Evidence for Interpretation:
  • Evidence for a Broader Interpretation: The claim language itself does not specify the purpose of the hierarchy, potentially allowing for a construction that covers any system with ordered levels of sensor groups.
  • Evidence for a Narrower Interpretation: The specification consistently links the hierarchy to a specific function: activating a higher-level group only after a positive classification from a lower-level group, and then using the higher-level result to adapt the lower-level classifier '564 Patent, col. 4:6-18 '564 Patent, Fig. 3 A defendant may argue that this functional relationship is a required aspect of the claimed "hierarchy."

VI. Other Allegations

• Indirect Infringement: The complaint makes allegations that may support a claim for induced infringement. It states that "Defendant's customers are also direct infringers" and that Defendant "continues to advertise" the accused products and their "infringing aspects... to customers to explain their features and use" Compl. ¶15 Compl. ¶23
• Willful Infringement: The complaint alleges that Defendant had knowledge of the patents "At least as early as the filing and service of the Complaint" and continued its allegedly infringing conduct thereafter Compl. ¶15 Compl. ¶23 This allegation appears to be aimed at establishing a basis for post-filing willful infringement rather than pre-suit willfulness.

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

This case appears to present two fundamental questions for the court's determination:

1. A core issue will be one of definitional scope: Can the term "mobile device," as used in patents explicitly aimed at solving battery-life problems in portable electronics, be construed to cover an embedded infotainment system that is powered by a vehicle's much larger electrical system?

2. A key evidentiary question will be one of technical operation: Assuming the definitional hurdle is cleared, what evidence will show that the accused vehicle systems implement the specific hierarchical, adaptive, and power-saving sensor classification method required by the patent claims, rather than a different, non-infringing method of context awareness?