Portable terminal, information processing apparatus, content display system and content display method

Patent No. US10219020 (titled "Portable terminal, information processing apparatus, content display system and content display method") on Aug 30, 2018. The application was issued on Feb 26, 2019.

What is this patent about?

’020 is related to the field of content display systems and methods for coordinating the viewing experience between a portable terminal and an external information device. The background context involves the increasing prevalence of internet-connected televisions and mobile devices, where users often face cumbersome manual steps when attempting to transition a viewing session from a small mobile screen to a larger home display.

The underlying idea behind ’020 is to create a seamless handoff mechanism that transfers the active state of a content session—such as a specific URL or broadcast channel—from a mobile device to a larger display with a single user action. By transmitting identification information and then automatically reconfiguring the mobile device to act as a remote control, the invention eliminates the need for the user to manually search for or re-enter content details on the secondary device.

The claims of ’020 focus on a display apparatus equipped with both a digital broadcast receiver and a network communication module for internet access. The independent claims specifically cover the hardware and logic required to receive a content identifier from an external mobile terminal, fetch the corresponding internet content, and automatically swap the current broadcast video for the new internet-sourced video while simultaneously accepting operation instructions from that same mobile terminal.

In practice, the system works by establishing a communication link between the mobile terminal and the display apparatus, often triggered by a specific button press on the mobile interface. Once the identifier is sent, the display apparatus terminates its current task to prioritize the incoming content. A key implementation detail is the dual-input capability, where the display apparatus remains responsive to both the mobile terminal’s relayed instructions and a traditional infrared remote controller.

This approach differs from prior solutions by automating the transition and the subsequent control logic in one workflow. Rather than just acting as a passive receiver, the display apparatus in ’020 integrates the mobile device into its control hierarchy, allowing for the transfer of user operation histories or session states. This ensures that dynamic content, such as authenticated web pages or interactive media, maintains its specific state during the transition between screens.

How does this patent fit in bigger picture?

Technical Landscape

In the mid-2000s when ’020 was filed, mobile handsets and stationary display systems typically operated as independent silos with distinct network interfaces and content delivery pipelines. At a time when multimedia consumption on portable devices was typically implemented using localized tuners or low-bandwidth mobile data, the integration between mobile terminals and large-format displays commonly relied on basic infrared remote control protocols or physical cable connections for simple screen mirroring. Technical constraints in wireless handshaking and session management made the seamless transition of active network resources between heterogeneous devices non-trivial, often requiring manual re-entry of resource identifiers or redundant data fetches by the secondary display hardware.

Prosecution Position

The disclosed invention achieves a meaningful technical advancement by establishing a coordinated architectural link between a portable terminal and a stationary information processing apparatus to facilitate dynamic content redirection. By implementing a structural solution where a mobile device captures and transmits specific resource identifiers and state information to a secondary display system, the architecture enables a transition from localized, small-screen viewing to high-resolution output without losing the user's navigational context. This integration overcomes the technical constraint of isolated device operation, enabling a capability where the portable terminal functions as an intelligent gateway that offloads data-intensive rendering tasks to stationary hardware while maintaining control over the session state.

Claims

The patent contains a total of 30 claims, with claims 1 and 25 serving as the independent claims. These independent claims focus on a display apparatus equipped with multiple receivers and processors designed to transition from displaying broadcast television content to displaying internet-based video content triggered by an identifier and control instructions received from an external mobile terminal, while also maintaining functionality for a separate remote controller and tracking user operation history. The dependent claims serve to further specify the hardware components, such as DLNA devices and wireless LAN modules, define the nature of the mobile terminal and the video identifiers, and detail specific operational states, display modes, and data storage capabilities of the system.

Key Claim Terms New

Definitions of key terms used in the patent claims.

Term (Source)Support for SpecificationInterpretation
External mobile terminal
(Claim 1)
The portable terminal includes a radio communication module to communicate with the information processing apparatus. It is configured to transmit a URL of a content being viewed or a history of viewed contents to the apparatus. The terminal can also function as a remote control to operate the information processing apparatus.A portable communication device, such as a cellular phone, that is separate from the display apparatus and capable of transmitting content identifiers and operation instructions via radio communication.
Identifier for identifying a second video content
(Claim 1)
The portable terminal transmits a URL of a site to the information processing apparatus. The information processing apparatus accesses the site based on the URL and displays the content on the display. This allows the user to view the content on a larger screen by simply performing a transfer operation on the mobile terminal.A data string or address, such as a Uniform Resource Locator (URL), transmitted from a mobile terminal to the display apparatus to specify a particular piece of internet-based video content for retrieval.
Operation instructions
(Claim 1)
The portable terminal transmits operation instructions to the information processing apparatus to operate the apparatus. This allows the user to use the portable terminal as a remote control device for the content being displayed on the larger screen. The instructions are executed while the second video content is being displayed.Control signals sent from the mobile terminal to the display apparatus to manage the playback or navigation of the internet-acquired video content.
Radio receiver
(Claim 1)
The information processing apparatus includes a radio communication module for communicating with the portable terminal. This module receives information such as URLs or operation instructions transmitted from the terminal. This communication path is distinct from the infrared signals used by standard remote controllers.A hardware component within the display apparatus designed to receive wireless data and control signals specifically from the external mobile terminal, distinct from the infrared receiver.
User operation history
(Claim 25)
The information processing apparatus includes a memory to store a user operation history. This history can include information about contents previously viewed or accessed. The system can use this stored data to facilitate subsequent content retrieval or display.A stored record of past interactions or content accessed by the user, maintained in the display apparatus memory.

Litigation Cases New

US Latest litigation cases involving this patent.

Case NumberFiling DateTitle
5:25-cv-00067May 30, 2025Maxell, Ltd. V. Tcl Electronics Holdings Ltd. (F/K/A Tcl Multimedia Technology Holdings, Ltd.)

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US10219020

Application Number
US16118080A
Filing Date
Aug 30, 2018
Publication Date
Feb 26, 2019
External Links
Slate, USPTO , Google Patents