Obviousness

The provided patent, US9772193, describes a vehicle beacon and method of use primarily for indoor and urban navigation, leveraging RF tags or beacons (e.g., Bluetooth, Wi-Fi) to provide location information and services, especially in environments where Global Positioning System (GPS) is inaccurate or unavailable. The core inventive concept as described is a system that uses unidirectional beacon signals from known locations, received by a mobile device, to determine the user's location without requiring bi-directional communication, internet, or cellular connection for location determination. It also features an overlay display method for existing maps or floor plans.

For an obviousness analysis under 35 U.S.C. § 103, we must identify prior art references, their teachings, and the motivation a person having ordinary skill in the art (PHOSITA) would have to combine them to arrive at the claimed invention.

Identified Prior Art and Relevant Disclosures from US9772193:

1. U.S. Pat. No. 7,031,875 (Ellenby et al.): This patent is explicitly discussed as prior art in US9772193. It is described as "a pointing system for addressing objects; provide a system and method based on Global Positioning System (GPS) and Internet and/or database communication." The '193 patent distinguishes Ellenby '875 by stating it "requires the Global Positioning System (GPS) to locate the user location," which limits its use for "indoor services," "availability and accuracy," and requires "communication with the Global Positioning System (GPS)." Furthermore, it notes Ellenby '875 "does not provide real time updates of the waypoints and needs access to the Internet and or a central database."
2. General Knowledge of Beacons, Location, Navigation, and Mobile Devices: The "Prior art keywords" listed for US9772193 include "user," "location," "beacon," "navigation," and "mobile device." This indicates that the fundamental concepts of using beacons for location and navigation with mobile devices were known in the art prior to the priority date of US9772193 (April 12, 2005).

Obviousness Analysis:

A PHOSITA would have been motivated to combine the teachings of Ellenby et al. (U.S. Pat. No. 7,031,875) with the general knowledge of beacon-based positioning to overcome the acknowledged limitations of Ellenby's system and GPS, thereby rendering certain aspects of US9772193 obvious.

Combination: Ellenby et al. (U.S. Pat. No. 7,031,875) + General knowledge of RF beacons for localized positioning.

Motivation for Combination:

• Addressing GPS Limitations: US9772193 itself explicitly identifies a "first limitation of the Global Positioning System (GPS) is that, upon activation, the Global Positioning System (GPS) receiver scans for signals from the constellation of Global Positioning System (GPS) satellites." It further highlights that "the civilian version of the Global Positioning System (GPS) signal includes limited accuracy by design," which "may not be sufficient to provide a location and/or navigation to a user in a store, a mall, to a vacant or available parking space." Crucially, it states that "the use of the Global Positioning System (GPS) is further limited in an indoor environment...as the Global Positioning System (GPS) cannot work effectively when the receiver is located in doors or a line of sight to the satellites is blocked."
  • Given these well-known limitations of GPS, a PHOSITA seeking to improve upon a GPS-reliant system like Ellenby '875 would naturally look for alternative or supplementary localization technologies that address these shortcomings, especially for indoor or high-accuracy urban environments.
• "Bridging the Gap" and "Complete Solution": US9772193 explicitly states its purpose is to "bridge the gap between the Global Positioning System (GPS) based navigation by providing an improved and complete solution." This declaration reveals the problem that a PHOSITA would aim to solve: creating a navigation system that works where GPS fails or is insufficient.
• Known Beacon Technology: The prior art keywords (e.g., "beacon," "location," "navigation") confirm that RF beacon technology for localized positioning was a known alternative or complement to GPS for determining location, particularly for improved accuracy in smaller areas or indoors. For example, the patent notes that "Bluetooth technology uses a Radio Frequency (RF) that is in a 2.4 GHz ISM band. In this frequency range, radio waves penetrate obstacles, such as walls and human bodies, albeit with a substantial loss." This demonstrates the known properties of such technologies suitable for indoor use.
• Integrating with Existing Systems: US9772193 also describes its system's ability to "interface with existing in car system and/or car navigation system" and "interface with existing Global Positioning System (GPS) outdoor mapping as well as indoor mapping," including automatically switching between outdoor GPS and indoor beacon applications. This further indicates a motivation to combine existing, limited GPS systems (like Ellenby's) with more localized, precise technologies to offer a seamless and comprehensive navigation experience.

A PHOSITA, recognizing the limitations of GPS-based systems (as highlighted by US9772193 itself and embodied in Ellenby '875) for indoor environments and high-accuracy applications, would have been motivated to replace or augment the GPS component of Ellenby's system with a known alternative localization technology, such as RF beacons. The goal would be to expand the applicability and accuracy of Ellenby's "pointing system for addressing objects" to indoor settings or areas with poor GPS reception, thereby providing the "complete solution" that US9772193 purports to offer. The use of beacons for location was within the general knowledge of the art, and applying this knowledge to overcome a known problem in existing navigation systems like Ellenby's would be a predictable extension.