Navigation system
First Claim
1. A navigation system, comprising:
- means for receiving a broadcast signal having a content stream, comprising digital audio signal and digital video signal, including a commercial message, and an associated data stream;
means for displaying the digital video signal and playing the digital audio signal in the content stream in real-time;
means for determining whether the associated data stream contains a first keyword that matches a second keyword from a stored list of keywords that respectively correspond to businesses, such that a given business corresponding to the matched second keyword is determined to correspond to the commercial message in the content stream;
means for identifying a position information of a landmark for the given business;
means for determining whether the position information of the landmark resides within a map area to be displayed by the navigation system relative to a detected position for a vehicle; and
means for triggering off real-time display of the digital video signal, while the display mean displays the commercial message, and providing a map area display of the map area including a landmark display for the landmark that is superimposed within the map area display, wherein the landmark display is caused to flicker to distinguish the landmark from other landmarks on the map area display.
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Accused Products
Abstract
Disclosed are a navigation system and/or a point information display method and a program. The navigation system consists mainly of: a stream receiver that receives broadcast streams; a data decoder that samples a data signal from the received streams and decodes the data signal into character string information; a matching block that performs matching to compare a predetermined keyword, which is associated with position information specified in map information data, with stored keywords and searches a keyword consistent with the keyword contained in the character string information; a position information searching block that searches position information associated with the keyword contained in the character string information and detected to be consistent with a stored keyword by the matching block; and a display unit that displays the detected position information while superimposing it on a display image.
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Citations
11 Claims
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1. A navigation system, comprising:
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means for receiving a broadcast signal having a content stream, comprising digital audio signal and digital video signal, including a commercial message, and an associated data stream; means for displaying the digital video signal and playing the digital audio signal in the content stream in real-time; means for determining whether the associated data stream contains a first keyword that matches a second keyword from a stored list of keywords that respectively correspond to businesses, such that a given business corresponding to the matched second keyword is determined to correspond to the commercial message in the content stream; means for identifying a position information of a landmark for the given business; means for determining whether the position information of the landmark resides within a map area to be displayed by the navigation system relative to a detected position for a vehicle; and means for triggering off real-time display of the digital video signal, while the display mean displays the commercial message, and providing a map area display of the map area including a landmark display for the landmark that is superimposed within the map area display, wherein the landmark display is caused to flicker to distinguish the landmark from other landmarks on the map area display. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of operating a navigation system for landmark displays, the method comprising:
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receiving a broadcast signal having a content stream, comprising digital audio signal and digital video signal, containing a commercial message, and an associated data stream associated; displaying the digital video signal and playing the digital audio signal from the content stream in real-time; determining whether the data stream contains a first keyword that matches to a second keyword from a stored list of keywords that respectively correspond to businesses, such that a given business corresponding to the matched second keyword is determined to correspond to the commercial message in the content stream; identifying a position information of a landmark for the given business; determining whether the position information of the landmark resides within a map area to be displayed by the navigation system relative to a detected position for a vehicle; triggering off real-time display of the digital video signal, while the commercial message is displayed, and providing a map area display of the map area including a landmark display for the landmark that is superimposed within the map area display, wherein the landmark display is caused to flicker to distinguish the landmark from other landmarks on the map area display. - View Dependent Claims (9, 10, 11)
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Specification