Obviousness

Obviousness Analysis of U.S. Patent 8,649,971 under 35 U.S.C. § 103

This analysis examines whether the independent claims of U.S. Patent 8,649,971 (claims 1 and 19) would have been obvious to a person having ordinary skill in the art (POSITA) at the time of the invention, based on combinations of the prior art references cited during prosecution. The key distinguishing feature of the '971 patent, as identified in the prior art summary, is the combination of:

1. Detecting that the vehicle has deviated from the route to a waypoint and is now traveling on a section of the route after that waypoint.
2. In response to this specific condition, outputting a message to the user.
3. Waiting for and accepting a direct user command on how to proceed regarding the missed waypoint.

The prior art references, individually, describe various aspects of navigation systems, including waypoint handling, route searching, guidance, and automatic re-routing upon deviation.

Obviousness Combination: US 2007/0106469 A1 in view of general knowledge of user interface design in navigation systems

Primary Reference: U.S. Patent Application Publication 2007/0106469 A1 (Denso Corporation)

• Teaching: This reference describes a navigation system that sets "pass-by points" (waypoints) and guides a vehicle. Critically, it addresses the scenario where a user deviates and misses a pass-by point, stating that "the system can determine whether to guide the user back to the missed point or to the next point on the route". The system makes this decision based on factors like the distance to the missed point versus the next one. This explicitly teaches the elements of setting waypoints and a destination, searching for a route, providing guidance, detecting deviation to a predetermined distance or more, and the determination that the vehicle is now traveling along a route after the first next waypoint. It determines this state to then make its automatic decision.

Secondary Teaching/Motivation for Combination: General knowledge of user interface (UI) design in navigation systems, or the implicit teaching of input/output means in other cited navigation patents (e.g., US 5,926,118 A describing a "vehicular navigation apparatus" which inherently includes UI components).

• Motivation to Combine: A POSITA would have been motivated to combine the functionality of US 2007/0106469 A1 with conventional user interaction principles to improve user-friendliness and provide user control. The '971 patent itself identifies a problem with the related art, stating that "because the navigation device automatically re-searches for a route returning to a waypoint which the user has not passed or a route in which the waypoint which the user has not passed is not set as a waypoint against the user's own will... the related art navigation device is inferior in user-friendliness". This problem statement provides a clear and explicit motivation for a POSITA to enable user choice.

• Reasoning for Obviousness:

  • Shared Functionality: US 2007/0106469 A1 already teaches the core logic of detecting deviation from a waypoint and determining that the vehicle is traveling on a route segment after that waypoint, subsequently making a decision (albeit an automatic one) on how to proceed.
  • Adding User Choice: Given the recognized desire for user control in navigation (explicitly stated in the '971 patent's background), a POSITA would find it obvious to modify the automated decision-making process of US 2007/0106469 A1. Instead of the system automatically deciding whether to guide back to a missed waypoint or to the next point, a POSITA would logically implement a user prompt.
  • Standard UI Implementation: Providing an output message (visual on a display, auditory via a speaker) and accepting a user command (via buttons, touchscreen, or voice input) are standard functionalities of any interactive navigation device. The '971 patent's detailed description (FIG. 1) explicitly lists components like a "monitor 2," "audio speaker 4," "remote control 3," and "input unit 17" as standard elements for such interaction. It would be a routine design choice to use these existing input/output means to present the user with the option to "travel via said first next waypoint" or not, once the system determines the deviation condition as taught by US 2007/0106469 A1.
  • Anticipating the Claims: The combination would thus teach a navigation device (claim 1) or method (claim 19) that detects deviation from a first next waypoint, determines it's traveling after that waypoint, outputs a message about this, and inputs a user command in response, thereby covering all elements of the independent claims.

Therefore, the combination of US 2007/0106469 A1 with the common knowledge in the art regarding user interface design and the well-understood desire for user control in navigation systems would render claims 1 and 19 of US 8,649,971 obvious. The motivation is to enhance user-friendliness by allowing users to determine how to handle a missed waypoint according to their own will, a problem explicitly highlighted by the '971 patent itself.