Obviousness

Obviousness Analysis under 35 U.S.C. § 103 for US Patent 11277650

The Patent Trial and Appeal Board (PTAB) has instituted an Inter Partes Review (IPR2025-01308) for US Patent 11277650, challenging claims 1-20 on grounds of obviousness under 35 U.S.C. § 103. The Board found a reasonable likelihood of unpatentability, specifically citing the combination of US 2005/0144633 A1 (Kamimaki) in view of US 2005/0198679 A1 (Ishizuka). Other prior art references mentioned in the petition grounds include US 2004/0049787 A1 (Sato), JP 2005-198061 A (Hitachi), and JP 2002-169747 A (Matsushita Electric Industrial Co., Ltd.). This analysis will focus on the combination of Kamimaki and Ishizuka, as explicitly noted in the institution decision, to demonstrate obviousness.

The Problem Addressed by US11277650

US11277650 addresses challenges in content consumption within a household. When main content (e.g., a TV program) and subsidiary content (e.g., EPG, subtitles, advertisements) are simultaneously displayed on a single main receiving terminal unit (like a television), the display area for each becomes limited, making viewing difficult. Furthermore, different family members often desire different subsidiary content simultaneously, leading to a need for personalized content delivery without interrupting the shared main content viewing experience. The patent proposes a system where a main receiving terminal unit delivers main content, while personalized subsidiary content is distributed to individual subsidiary receiving terminal units, each identified by specific ID information, and processed according to the terminal's capabilities.

Prior Art Disclosures

1. US 2005/0144633 A1 (Kamimaki)
   Kamimaki describes an information processing apparatus and method that allows a user to access additional information related to main content displayed on a television. The system uses a portable terminal to display supplementary information without interrupting the main display. This portable terminal can send requests for specific supplementary information to a main processing unit (e.g., a set-top box connected to the TV), which then retrieves and sends the requested information to the portable terminal. The portable terminal can also receive and display advertising content based on user preferences.

2. US 2005/0198679 A1 (Ishizuka)
   Ishizuka discloses a content delivery system that delivers personalized content to individual portable terminals. The system uses identification information (IDs) associated with each portable terminal to customize the content delivered. For example, a content server can deliver content, such as advertisements or news, tailored to the specific user profile associated with the ID of the receiving terminal.

Obviousness Combination: Kamimaki in view of Ishizuka

A person having ordinary skill in the art (POSITA) in the field of content receiving systems and client devices would have found it obvious to combine the teachings of Kamimaki and Ishizuka to arrive at the invention of US11277650.

Motivation for Combination:

The primary motivation for combining Kamimaki and Ishizuka stems from the desire to enhance the user experience by providing personalized supplementary content, building upon existing systems for offloading supplementary content.

• Solving the display area problem and enhancing user experience: Kamimaki already teaches the concept of using a portable terminal to display supplementary information, thereby addressing the issue of limited display area on a main television screen and improving usability. However, Kamimaki's focus is more on simply displaying supplementary information, not necessarily on individual personalization based on user taste.
• Introducing personalization based on individual preferences: Ishizuka directly addresses the problem of delivering personalized content by using individual identification information (IDs) to tailor content (e.g., advertisements, news) to specific user profiles and their associated portable terminals.
• Bridging the gap: A POSITA would recognize that while Kamimaki provides a robust architecture for distributing supplementary content to portable terminals, it lacks the explicit personalization mechanism that Ishizuka offers. It would be a logical and desirable improvement to integrate Ishizuka's personalization capabilities into Kamimaki's system. For instance, if a user, as described in Kamimaki, requests "related information" for a commercial, it would be beneficial to filter and deliver this "related information" based on the individual user's preferences or profile, as taught by Ishizuka, rather than delivering generic information to all requesting terminals.
• Leveraging existing technologies for user identification: Both patents operate in a technological landscape where user identification and content delivery to distinct devices were known. The idea of associating an ID with a portable terminal for specific content delivery, as central to US11277650, is explicitly present in Ishizuka and implicitly beneficial within Kamimaki's framework of multiple portable terminals interacting with a main unit.
• Addressing the "family member taste" problem: The problem stated in US11277650 regarding different family members desiring different subsidiary content is directly addressed by combining the systems. Kamimaki allows multiple subsidiary devices to receive content, and Ishizuka provides the mechanism to ensure that the content delivered to each of these devices is tailored to the individual user's preferences, which would be associated with the device's ID.

Therefore, a POSITA, seeking to improve the user experience in content consumption systems by providing more relevant and personalized supplementary content on portable devices, would have been motivated to combine the system architecture and supplementary content distribution of Kamimaki with the individualized content delivery based on user IDs from Ishizuka. This combination would lead directly to the core elements of US11277650's claims, which involve a main unit receiving content, a plurality of subsidiary units with IDs requesting and receiving personalized subsidiary content, and the main unit transmitting content to the specific subsidiary unit based on its ID.