Prior art

{"answer":"### Prior Art Analysis for U.S. Patent 11,080,001

An analysis of the prior art cited during the prosecution of U.S. Patent 11,080,001 reveals several key patents and applications that were considered by the USPTO examiner. This analysis outlines the most relevant of these, detailing their disclosures and their potential impact on the patentability of the claims in the '001 patent under 35 U.S.C. § 102.

Key Prior Art and Potential Anticipation of Claims:

1. U.S. Patent No. 7,571,014 B1 (the '014 patent)

• Full Citation: US 7,571,014 B1, "Method and apparatus for operating a media system," filed by B. Lambourne, et al.
• Publication Date: August 4, 2009 (Filed: June 30, 2003)
• Brief Description: The '014 patent describes a system for controlling a plurality of media rendering devices from a single remote control. The system allows users to group devices into zones and control them simultaneously. This includes synchronizing playback across multiple devices. The patent details a "zone scene" which is a stored configuration of zones and their operational parameters.
• Potential Anticipation of Claims: The '014 patent appears to be highly relevant to the core concepts of the '001 patent. Its disclosure of creating and controlling groups of synchronized media players (zones) from a central controller presents a strong case for anticipating the substance of independent claims 1, 13, and 14 of the '001 patent, which describe a "synchrony group" and a "master device" that manages the group. Specifically, the '014 patent's concept of a zone leader that distributes content and commands to other players in the zone mirrors the "master device" functionality in the '001 patent. The method of a user selecting a player to be the master of a new group and having it broadcast information is a central theme in both patents.

2. U.S. Patent No. 6,256,554 B1 (the '554 patent)

• Full Citation: US 6,256,554 B1, "Entering a personal-area network," filed by D. DiGiacomo.
• Publication Date: July 3, 2001 (Filed: March 24, 1998)
• Brief Description: This patent details a method for a new device to join an existing ad-hoc network of devices. A "master" device in the network broadcasts beacon signals, and a new device can request to join by responding to these beacons. The master then authenticates the new device and integrates it into the network. This invention is focused on the dynamic creation and modification of local area networks.
• Potential Anticipation of Claims: The '554 patent could be interpreted as anticipating the "joining" aspect described in several dependent claims of the '001 patent. While not specific to audio playback, the process of a new device discovering and joining a group of networked devices orchestrated by a master device is analogous to a new "zone player" joining a "synchrony group." This could be particularly relevant to claims that elaborate on the process of adding new devices to a group, as it establishes a precedent for such dynamic network formation.

3. U.S. Patent Application Publication No. 2002/0022995 A1 (the '995 application)

• Full Citation: US 2002/0022995 A1, "Networked digital media system," filed by Y. E. Yacobi.
• Publication Date: February 21, 2002 (Filed: August 20, 2001)
• Brief Description: The '995 application discloses a system of networked devices for playing digital media. It describes a "session manager" that controls the playback of media on various devices in a home network. This includes the ability to transfer playback of a media stream from one device to another seamlessly.
• Potential Anticipation of Claims: The '995 application's description of a "session manager" and the transfer of media control is relevant to the '001 patent's concept of migrating the "master device" role within a synchrony group. This prior art establishes the idea of a central control point that can be dynamically reassigned. This may anticipate the functionality described in independent claims 1, 13, and 14 related to the transfer of the master role from one device to another within the playback group.

4. U.S. Patent No. 6,404,811 B1 (the '811 patent)

• Full Citation: US 6,404,811 B1, "Method and system for providing a unified-user interface for a variety of remotely-controlled devices," filed by C. G. C. Jones.
• Publication Date: June 11, 2002 (Filed: January 13, 1999)
• Brief Description: The '811 patent describes a universal remote control system that provides a consistent user interface for controlling various electronic devices. A key feature is the ability to group devices and apply a single command to all devices in the group. The system architecture involves a master controller that communicates with individual device controllers.
• Potential Anticipation of Claims: This patent's teaching of a unified user interface for controlling a group of devices through a master controller is pertinent to the user interface aspects of the '001 patent. While the primary focus of the '811 patent is on the user interface rather than synchronous playback, its description of a master device sending commands to a group of slave devices could be seen as anticipating the control and communication architecture outlined in independent claims 1, 13, and 14 of the '001 patent.

Disclaimer: This analysis is based on the cited prior art and does not constitute a legal opinion on the validity of U.S. Patent 11,080,001. The final determination of patentability rests with the United States Patent and Trademark Office and the federal courts."