Method and apparatus for detecting arrival at new city and

Method and apparatus for detecting arrival at new city and
USOO8798903B2
(12) United States Patent
(10) Patent N0.:
Feng
US 8,798,903 B2
(45) Date of Patent:
(54) METHOD AND APPARATUS FOR
Aug. 5, 2014
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(75) Inventor:
2010/0070166 A1*
Kyte Feng, Torrance, CA (US)
..... ..
3/2010 Krzanowski
Kameym ................ .. 701/202
OTHER PUBLICATIONS
(73) Assignee: Alpine Electronics, Inc” Tokyo (Jp)
Steiniger et al., Foundations of Location Based services, 2006,-Lec
ture Notes on LBS, Department of Geo graphy, University onurich.*
-
(T)
_
-
Nonce'
-
-
-
Li et al., A Lattice-Based Semantic Location Model for Indoor Navi
subJeCt. to any dISCIalmer’. the term Ofthls
gation, 2008, 9th International Conference on Mobile Data Manage
patent IS extended or adjusted under 35
ment, References sections
U-S-C~ 15403) by 708 days-
Steiniger et al.: Foundations ofLocation Based Services, 2006, Lec
ture Notes on LBS, De P artment ofGeo gr aP hy,Universit y 0qurich.*
(21)
Appl. No.: 12/386,918
Li et al.: A Lattice-Based Semantic Location Model for Indoor Navi
gation, 2008, 9th International Conference on Mobile Data Manage
(22)
Filed.
ment, References section.*
API._ 24, 2009
(65)
Prior Publication Data
US 2010/0274482 A1
(
* Cited by exammer
Oct. 28, 2010
Primary Examiner * Joy Chng
(74) Attorney, Agent, or Firm * Muramatsu & Associates
)
51
(52)
Int. Cl.
G01 C 21/00
(2006.01)
(57)
G01C 21/30
(200601)
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G01C 21/32
(2006 01)
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arrival to a new c1ty and prOV1de 1nformatlon on the c1ty such
_
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as dining, lodging, popular sightseeing place, etc. to the user.
In addition, it can also provide the user a list of his or her
_
(58)
ABSTRACT
aratus and method for a navi ation s stem to detect
_’
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friends in the new city according to an address book or from
Fleld 0f ClaSSI?catlon searCh
USPC """""""" " 701/211, 208’ 209’ 400’ 409’412’
701/418419’ 439; 342/357'13; 715/733,
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(56)
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e erences
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6,522,875 B1*
user is entering a new city by determining whether the user is
moving across the new city border line. Further, the detecting
unit indicates the user is entering a new city when the user is
1 e
moving a predetermined distance away from an airport. Fur
ther, the new city information may not be shown if the user
has visited the city before within a predetermined period.
U.S. PATENT DOCUMENTS
7,461,528 B2
social networking websites. The navigation includes a detect
ing unit communicativer coupled with a position measuring
device and a map information memory to detect whether the
2/2003 Dowling et al. ......... .. 455/4143
12/2008 Taniguchi et al.
16 Claims, 10 Drawing Sheets
1
Receiving current position of the
6 °
user
520
630
Detecting whether the user is
entering a new city
Is the user moving across
No
the city border line?
s the city size with
640
the user’s preferable
selection
650
Providing a noti?cation message to the
user and the user is allowed to retrieve
new city information in said noti?cation
message
No
US. Patent
Aug. 5, 2014
US 8,798,903 B2
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US 8,798,903 B2
1
2
METHOD AND APPARATUS FOR
DETECTING ARRIVAL AT NEW CITY AND
PRODUCING INFORMATION ON NEW CITY
However, similar to the Dowling et al. patent noted above, the
Taniguchi et al. patent does not disclose anything related to
determine whether the mobile unit is entering a different or
new locality.
Therefore, there remains a need for a new and improved
FIELD OF THE INVENTION
apparatus and method in a navigation system, including por
This invention relates to a method and apparatus for a
table navigation system, to detect arrival to a new city and
provide information of the new city. The information of the
navigation system, and more speci?cally, to a method and
apparatus for a navigation system that can detect arrival at a
new city and provide information regarding the new city such
new city includes dining, lodging, sightseeing, sports stadi
10
as dining, lodging, popular sightseeing place, sporting facili
ties, local events, etc. to the user.
ums, concert halls, or social networking information to the
user to have better understanding of the new city.
SUMMARY OF THE INVENTION
BACKGROUND OF THE INVENTION
It is an object of the present invention to provide an appa
Recently, navigation devices, including portable naviga
tion devices (PNDs), have become more popular and afford
able for most users. The navigation system can, not only
determine the user’s current position by utilizing the Global
ratus and method in a navigation system, including portable
Positioning System (GPS), but also provide different routing
ent means of transportation, such as car, bus, train, boat, etc.
It is another object of the present invention to provide new
city information to the user, such as restaurants, hotels,
navigation devices (PNDs), to detect arrival to a new city,
such that the user can receive new city information in differ
20
information between the user’s current position and the des
tination. In order to perform above mentioned functions, the
navigation system is usually equipped with navigation com
famous places to visit, etc., after the navigation system indi
puter programs and one or more detailed database to store and
cates that the user is entering the new city.
provide maps, map attributes, road networks, geographical
features and points-of-interests (POI) information.
25
Generally, the navigation system generates a preferred or
optimized route after receiving destination information input
by the user, and the route is usually displayed associated with
a map on a display unit of the device. However, when the user
is entering a new city or a location he or she is unfamiliarwith,
the navigation system in the present invention can generate a
list of the user’ s friends in the new city based on the area code
30
driving or moving a predetermined distance away from an
35
the city size.
A city is an inhabited place of greater size, population, or
In such a situation, he probably needs to know immediately
about the restaurant or hotel information, as well as famous
40
or village, so that the new city information may not be pro
vided whenever the user is entering a different area, espe
cially when the area is merely a small town. As illustrated
concert halls in the city. Those information is surely available
45
network application such as the World Wide Web by physi
50
a mobile unit 105 which is operative to receive locally broad
cast signals or to operate a global positioning system (GPS)
only if the city has over two million people. If the user wishes
to receive city information when entering a smaller city, the
navigation system in the present invention allows the user to
select city size or directly enter the city name based on his or
her preference.
receiver. As can be seen in FIG. 1, the mobile unit 105 navi
gates into different physical localities, different web pages are
displayed by the geographical web browser.
above, a city can be distinguished from town or village
according to its size, population or importance, and the same
criteria may be applied to different cities. For example, the
navigation system can be designed to show city information
cally navigating in geographical coordinates. More speci?
cally, the geographical web browser may be implemented in
importance than a town or village. The navigation system in
the present invention is adapted to distinguish city from town
etc. If he is a sports enthusiast or music lover, he may imme
diately want to know the locations of sports stadiums or
on the Internet for everyone, however, it may be inconvenient
for the visitor to retrieve those information while driving.
U.S. Pat. No. 6,522,875 issued to Dowling et al. discloses
geographical web browser which allows a user to navigate a
airport in the new city.
It is still another object of the present invention for the user
to customize new city information, and the user can decide
whether or not to receive the new city information based on
the Los Angeles International Airport (LAX).
places to visit, such as Hollywood, Disneyland, Beverly Hills,
of the phone numbers in the user’s address book, or from
social networking websites such as Facebook.
It is still another object of the present invention to detect
arrival of the new city either by geographical city border, or by
the user may need some immediate information speci?cally
about the new city, such as dining, lodging or a quick intro
duction of the new city. For example, when a visitor comes to
the city of Los Angeles for his very ?rst time with little
knowledge about the city, and just gets his rental car nearby
It is another object of the present invention to provide
social networking information in the new city, for example,
According to one aspect of the present invention, a navi
55
gation device may include a user interface; a position mea
suring unit adapted to receive information about current loca
tion of the device from a global positioning system (GPS), for
When the mobile unit 105 crosses the town and enters a
second area, a new set of web pages is downloaded relating to
properties in the second area. However, the Dowling et al.
instance; at least one database to store and provide maps, road
patent does not disclose or teach how to determine whether
the mobile unit such as a vehicle is entering a different locality
networks, geographical features, and POI information,
60
wherein when the user is entering a new city, a noti?cation
(city or other administrative region). Also, the driver may be
distracted when operating the web browser while driving.
message is generated and displayed on the display unit to
U.S. Pat. No. 7,461,528 to issued to Taniguchi et al. dis
closes a content processing apparatus and content display
apparatus which shows the content based on location infor
mation. Such location information is preferably provided to a
embodiment, the user interface can be a display unit con?g
mobile terminal user, as shown in the structure of FIG. 2.
enable the user to retrieve information of the new city. In one
65
ured to display new city information. In another embodiment,
the noti?cation message may contain the information of, but
not limited to, popular restaurants, popular hotels, popular
places to visit, and list of friends in the area.
US 8,798,903 B2
4
3
detecting unit adapted to detect geographical city border to
FIG. 4 is a schematic diagram showing an example of
display of a navigation device in the present invention where
determine whether the user is entering the new city. In another
embodiment, the detecting unit may determine that the user is
entering a new city when the user is moving a predetermined
distance away from an airport in the city.
In still another embodiment, the function of detecting
the new city information may be shown when the user is
moving across the border line between the cities.
FIG. 4a is a schematic diagram showing an example of
display of a navigation device in the present invention where
the new city information may be shown when the user is
arrival to a new city can be turned off by the user, so that the
new city information is not shown even when the vehicle is
entering into a new city. When the user turns on the function
again and the user is at another new city, the device immedi
moving a predetermined distance away from the airport.
FIG. 5 is a schematic diagram showing an example of
display of a navigation device in the present invention which
In one embodiment, the navigation device includes a
allows the user to select the city of preferable size for arrival
detection.
FIG. 6 is a ?ow chart showing an example of operational
steps of the present invention where the new city information
may be shown when the user is moving across the city border
line.
FIG. 7 is a ?ow chart showing an example of operational
steps of the present invention where the new city information
may be shown when the user is moving a predetermined
ately detects the user’s current location and provide new city
information thereat.
In a further embodiment, the user can customize the infor
mation in the noti?cation message. For example, if the user
only wants to know about restaurant and hotel information
whenever he or she enters a new city, the user can customize
the noti?cation message to select his or her preferable infor
mation.
In still a further embodiment, the navigation system in the
present invention includes memory devices to store when the
new city has been visited. If the user visits the same city again
within a predetermined period of time, the new city informa
tion may not be shown to the user.
20
be selectively retrieved by the user when the user turns off the
navigation device in one city and turns on in another city.
25
DETAILED DESCRIPTION OF THE INVENTION
In another aspect, a method of using a device to provide
new city information to a user includes the steps of: receiving
current position of the user, detecting whether the user is
entering a new city, providing a noti?cation message to the
user entering a new city and allowing the user to retrieve new
The detailed description set forth below is intended as a
description of the presently exemplary device provided in
30
city information in said noti?cation message.
In one embodiment, the step of detecting whether the user
is entering a new city includes a step of detecting whether the
user is crossing geographical city border. In another embodi
ment, the step of detecting whether the user is entering a new
city includes a step of detecting whether the user is moving a
predetermined distance away from an airport in the new city.
35
In the method of the present invention, the step of receiving
current position of the user may include the step of using a
position and distance measuring unit in the device to receive
information about current position from GPS signals.
In the method of the present invention, the map information
40
accordance with aspects of the present invention and is not
intended to represent the only forms in which the present
invention may be prepared or utilized. It is to be understood,
rather, that the same or equivalent functions and components
may be accomplished by different embodiments that are also
intended to be encompassed within the spirit and scope of the
invention.
All publications mentioned are incorporated by reference
for the purpose of describing and disclosing, for example, the
designs and methodologies that are described in the publica
tions which might be used in connection with the presently
described invention. The publications listed or discussed
above, below and throughout the text are provided solely for
their disclosure prior to the ?ling date of the present applica
is communicatively coupled with the position and distance
measuring unit and the detecting unit, such that the detecting
unit can determine whether the user is entering a new city.
distance away from the airport.
FIG. 8 is a ?ow chart showing an example of operational
steps of the present invention where the city information may
45
tion. Nothing herein is to be construed as an admission that
the inventors are not entitled to antedate such disclosure by
virtue of prior invention.
The present invention together with the above and other
advantages may best be understood from the following
detailed description of the embodiments of the invention
illustrated in the drawings below.
Unless de?ned otherwise, all technical and scienti?c terms
used herein have the same meaning as commonly understood
to one of ordinary skill in the art to which this invention
50
belongs. Although any methods, devices and materials simi
lar or equivalent to those described can be used in the practice
BRIEF DESCRIPTION OF THE DRAWINGS
or testing of the invention, the exemplary methods, devices
FIG. 1 illustrates a prior art, in which the geographical web
browser is implemented in a mobile unit which is operative to
receive locally broadcast signals.
and materials are now described.
The present invention relates to an apparatus and method
55
FIG. 2 illustrates a prior art discloses a content processing
devices (PNDs), to detect arrival to a new city. More speci?
cally, the present invention discloses a navigation system or
apparatus and content display apparatus based on location
information, and the location information is preferably pro
other electronic device to detect arrival to the new city and
provide the information on the new city such as dining, lodg
vided to a mobile terminal user
FIG. 3 is a block diagram showing an example of func
tional structure of a vehicle navigation system implementing
60
ing, popular sightseeing place, shopping, sports gyms, music
halls, etc. to the user. Furthermore, the present invention can
promote social networking activities by providing a list of the
the present invention to detect arrival to a new city and pro
vide the information related to the new city to the user.
FIG. 3a is a schematic diagram showing an example of a
new city information window in accordance with the present
invention which includes information on dining, lodging, top
10 tourist attractions, etc. of the new city.
for a navigation system, including portable navigation
user’ s friends in the new city according to the area code of the
65
phone numbers in the user’s address book, or from social
networking websites such as Facebook.
FIG. 3 is a block diagram showing an example of structure
of a navigation system 300 for implementing the present
US 8,798,903 B2
5
6
invention. As canbe seen in FIG. 3, the navigation system 300
city which is quali?ed as a “city” according to the criteria
includes a user interface 301, a detecting unit 302 adapted to
detect and determine whether the vehicle or the user is enter
previously illustrated, such as size, population, importance,
etc., the information providing unit 303 may be triggered and
operatively coupled with the menu/list generating unit 318 to
ing a new city. An information providing unit 303 is triggered
to provide new city information, such as dining, lodging,
popular sightseeing place, etc. to the user when the detecting
provide a new city information window 330 on the user inter
face 301, as can be seen in FIG. 3a.
The new city information window 330 may include menu
unit 302 indicates that the user is entering a new city.
In one embodiment, the user interface 301 can be a display
keys of “top rated restaurants” 331, “top rated hotels” 332,
“top 10 tourist attractions” 333, and “5 day weather forecast”
unit con?gured to display, among others, new city informa
tion. The navigation system 300 also includes a data storage
334. In addition, further information on the new city can be
device 304 such as a hard disc, CD-ROM, DVD or other
obtained by simply clicking “More” button 335. On the other
storage means for storing the map data. The data storage
device 304 also stores various other information including
hand, the user can customize the content of the new city
20
information window 330. For example, if the user only needs
dining and lodging information in each new city, the user is
allowed to remove the keys of “top 10 tourist attractions” 333,
“5 day weather forecast” 334, and “More” 335 from the new
city information window 330.
In another embodiment illustrated in FIG. 4a, the informa
tion providing unit 303 may be triggered to provide new city
information when the detecting unit 302, which is communi
25
device 306 and the map information memory 307. The infor
mation providing unit 3 03 indicates that the user is driving the
vehicle a predetermined distance away from an airport in the
new city.
points of interest information and city information, etc. that
can be used for the present invention.
The navigation system 300 includes a control unit 305 for
controlling an operation for reading the information from the
data storage device 304, and a position and distance measur
ing device 306 for measuring the present user or vehicle
position. For example, the position and distance measuring
catively coupled with the position and distance measuring
device 306 has a vehicle speed sensor for detecting a moving
distance, a gyroscope for detecting a moving direction, a
microprocessor for calculating a position of the user or
vehicle, a GPS (global positioning system) receiver for
receiving GPS signals from arti?cial satellites for also calcu
For example, when the detecting unit 302 indicates that the
lating a current position of the user or vehicle.
The block diagram of FIG. 3 further includes a map infor
mation memory 307 for storing the map information which is
retrieved from the data storage device 304, a POI database
memory 308 for storing database information such a point of
interest (POI) information which is read out from the data
storage device 304, an input device 313 for executing a menu
selection operation, an enlarge/reduce operation, a destina
tion input operation, etc. and an input device interface 312. In
one embodiment, the input device 313 is a remote controller.
vehicle 410 has been driven 5 miles away from the Los
Angeles International Airport (LAX) 430, the information
providing unit 303 is triggered to provide Los Angeles city
30
information 330 as shown in FIG. 3a. This con?guration can
be used to provide new city information to visitors who are
unfamiliar with the new city and just get rental car from the
airport. Even though the user is relatively familiar with the
new city, the information regarding the city may be useful for
35
Still referring to FIG. 3, the navigation system 300 includes
quickly ?nding phone numbers, locations, business hours,
etc. of facilities in the city.
In addition to the form of vehicle navigation system, the
a bus 311 for interfacing the above units in the system, a
navigation system 300 may be portable, hand-held type and
processor (CPU) 314 for controlling an overall operation of
the navigation system 300, a ROM 319 for storing various
be used in different means of transportation, such as bus,
control programs such as a route search program and a map 40 train, boat, etc. For example, when the user carries the por
table navigation system 3 00 with him in the train, the new city
information may still be triggered when the train is moving
matching program necessary for navigation control, a RAM
320 for storing a processing result such as a guide route, a
display controller 315 for generating map image (a map guide
across the city border line or moving a predetermined dis
image and an arrow guide image) on the basis of the map
tance away from the airport in the city.
As noted above, the navigation system in the present inven
information, a VRAM 316 for storing images generated by
45
the display controller 315, a menu/list generating unit 318 for
generating menu image/various list images, a synthesizing
unit 317, a wireless communication device 309 to retrieve
data from a remote server through wireless communication,
and a buffer memory 310 for temporary storing data for data
tion provides a convenient interface to the user to receive new
city information whenever he or she is entering a new city.
However, some small city information may be unnecessary to
the user and may cause driver distraction while the user is
50
processing.
San Francisco, he or she may not need new city information
on small cities such as Burbank or Fresno. Especially, when
A program for conducting the operation of detecting the
arrival of new city and providing the information on the new
city in the present invention shown in the ?ow charts of FIGS.
6 and 7 is stored in the ROM 319 or other memory and is
executed by the CPU 314 or a separate processor. Typically,
the CPU 314 controls an overall operation of the navigation
system 300 in addition to the arrival detection and informa
tion retrieval of the present invention.
In one embodiment according to FIG. 4, when the user is
driving a vehicle, the detecting unit 302 detects whether the
vehicle is entering a new city. More speci?cally, the detecting
unit 302 is communicatively coupled with the position and
distance measuring device 306 and the map information
memory 307 to detect a geographical city border line 420
while the vehicle 410 is moving. Once the vehicle 410 is
moving across the city border line 420 to an area of another
driving. For example, if the user drives from Los Angeles to
55
the user has no intention to stop-by such cities during the trip
to San Francisco and just wants to enjoy the driving, the
information on each of such cities may be useless and dis
tracting.
Therefore, as can be seen in FIG. 5, a selection table 500
includes a plurality of selection buttons to enable the user to
select the city or cities to receive new city information based
60
on the city size. For the same trip noted above from Los
Angeles to San Francisco, if the user selects a key of “top 20
cities in the US.” 510, he or she may only receive the new city
information of San Jose and San Francisco along the route.
On the other hand, if the user selects a key of “top 50 cities in
65
the US.” 520 or even “top 100 cities in the US.” 530, the user
may receive new city information of more cities along the
route. If the user wants to know new city information of a
US 8,798,903 B2
7
8
speci?c city, the user is allowed to enter the city name(s) by
clicking a key 540 which is operatively coupled with the input
across the border line to the city of the user’s preferable
device 313 to specify the name of such a city.
ing unit 303 is triggered to display a new city information
selection, as depicted in the step 640, the information provid
The navigation system in the present invention further
window 330 to inform the user that the user is now at a new
provides an “on/off” button 550 for the user to turn on or turn
city, and allow the user to retrieve the new city information
therein.
off this function. If the user turns off this function in one city
and needs new city information while traveling to another
In one embodiment, the new city information can be
city, he or she can turn on this function and the detecting unit
retrieved from the POI database memory 308 adapted for
storing database information such a point of interest (POI)
information which is read out from the data storage device
304. In another embodiment, the new city information can be
302 (coupled with position/distance measuring device 306
and map information memory 307) may trigger the informa
tion providing unit 303 to provide current city information to
the user. In another embodiment, the new city information
window 330 may not be displayed if the new city has been
visited by the user within a predetermined period of time
since the new city information may still be fresh to the user.
In one embodiment, the new city information is stored in
the ROM 319, POI database memory 308 or other memory in
transmitted from the Internet, a remote server or other com
munication networks through the wireless communication
device 309. The city information can also be created by the
user in the navigation system in the manner that the user
creates the address book in the navigation system.
On the other hand, if the size of the city that the user just
the navigation system 300. As noted above, such new city
information is typically stored originally in the data storage
device 304 and transferred to the POI database memory 308
or other memory in the navigation system 300. In another
embodiment, the new city information can be transmitted
moves across is not in his or her preferable selection (based on
20
steps 610 to 630 may be repeated when the user is moving
wirelessly from a remote server, the Internet or other com
across next city border if the size or other factors of the cities
are not within the preferable selection made by the user.
munication networks through the wireless communication
device 309.
FIG. 6 is a ?ow chart showing an example of operational
steps of the present invention where the new city information
is shown when the user is moving across the city border line.
25
In the step 610, the navigation system constantly checks the
current position of the user or user’s vehicle. Especially, the
navigation system detects whether the user is entering a new
30
position of the user and the boarder line between two or more
is triggered to provide a new city information window 330 to
to retrieve new city information therein in step 750.
As stated above, this con?guration can be used for visitors
who are unfamiliar with the new city and just get rental car
40
vehicle is moving across the city border line (steps 620, 630)
since it may be unnecessary and impractical to use the airport
as a reference point for subsequent new cities. In the process
45
of FIG. 7, in addition to the airport, it is also possible to detect
a predetermined distance away from a train station, a central
current position can be determined by GPS signals from the
arti?cial satellites in addition to the signals from the sensors
50
tion of the map information which is read from data storage
device 304.
In addition, the map information memory 307 is commu
nicatively coupled with the position and distance measuring
from the airport. If the city is not within the user’s preferable
selection, the navigation system 300 may determine whether
the vehicle is entering the next new city based on whether the
the user’ s current position in step 610. For example, the user’ s
in the navigation system. As illustrated above, the map infor
mation memory 307 is adapted for storing the required por
steps 710 and 720 are similar to the steps 610 and 620 in FIG.
6. In step 730, when the user is moving a predetermined
the user that the user is now at a new city, and allow the user
35
tem provides a noti?cation message to the user and allows the
user to retrieve the new city information in step 650.
In one embodiment, the position and distance measuring
device 306 in the navigation system 300 is adapted to receive
FIG. 7 is a ?ow chart showing an example of operational
steps of the present invention where the new city information
may be shown when the user is moving a predetermined
distance away from the airport. In the example of FIG. 7, the
distance away from an airport in the city of the user’s prefer
able selection in step 740, the information providing unit 303
city in the step 620 by comparing, for example, the current
cities.
Thus, in step 630, it is determined whether the user is
moving across the city border line, and if the answer is nega
tive, the process goes back to the step 620 to repeat the steps
620 and 630. If the answer in the step 630 is af?rrnative, the
navigation system determines whether the size of the new city
is within the user’s preferable selection at step 640. If the
answer is negative, the process goes back to the step 620. If
the answer in the step 640 is af?rmative, the navigation sys
size), the information providing unit 3 03 may not be triggered
to provide new city information to the user. The identical
bus terminal, a ferry terminal, etc. of the new city.
FIG. 8 is a ?ow chart showing an example of operational
steps of the present invention where the city information may
be selectively retrieved by the user when the user turns off the
navigation device in one city and turns on in another city. In
step 810, the navigation system determines the user’s current
position by, for example, analyzing the GPS signals from the
satellites. In a further step 820, the navigation system 300
55
device 306 and the detecting unit 302, such that the detecting
detects whether the user is near an airport, a railroad station,
unit 302 can determine whether the user is entering a new city
or a ferry terminal, etc. As illustrated above, new city infor
mation may be provided to the user if the user is driving a
in the step 620 noted above. In one embodiment according to
the step 630, the detecting unit 302 may indicate that the user
is entering a new city if the user is moving across the city
predetermined distance away from the airport in a new city.
In one embodiment, the navigation system 300 may be
portable and when the user is using the navigation system 300
60
in a train or a boat which is moving a predetermined distance
from a train station or a ferry terminal, the new city informa
tion may be provided to the user as well. In one embodiment,
border in the manner as illustrated in FIG. 4.
Again, the user can be in any means of transportation, such
as a car, bus, train, etc., or the user can simply be walking with
the portable navigation system on hand. Furthermore, as
shown in FIG. 5, the navigation system 300 in the present
the user may turn off the navigation system 300. For example,
65
when the user wishes to bring his car to travel from one island
invention allows the user to ?lter new city information based
to another, he may have to shut his car (and the navigation
on the user’s preference and city sizes. If the user is moving
system) down when the car is on a car ferry. The ROM 319 or
US 8,798,903 B2
10
a second visiting date with the ?rst visiting date of the new
city, and if the new city has been visited repeatedly within a
other memory devices in the navigation 300 store the user’s
current location when the user turns the system off, as in step
830.
Furthermore, if the user turns on the navigation system 3 00
predetermined period of time, the new city information is not
displayed to the user.
again at step 840, for example, when driving off the car ferry,
4. The portable navigation system of claim 1,
wherein the portable navigation system provides a city
the system compares the user’s current location with the
location information stored in ROM 319 or other memory
selection table which allows the user to determine the
devices to determine whether the user is in a new city, as
size of city to receive new city information, and
wherein the noti?cation message containing new city
depicted in step 850. If the user is determined to be in a new
city, the information providing unit 3 03 is triggered to provide
information is provided to the user when the user is
a new city information window 330 to the user that the user is
now at a new city, and allows the user to retrieve new city
entering the new city of the driver’s preferable size.
5. The portable navigation system of claim 1, wherein the
information therein in steps 860 and 870.
new city information is stored in the database of the naviga
In another embodiment, if the user is determined to be in a
tion system, or transmitted from a remote server, the Internet
or other communication networks.
new city, the information providing unit 303 can be triggered
to provide new city information to the user even without the
6. A method of providing new city information from a
navigation device to a user comprises the steps of:
receiving a ?rst position of the user;
display unit. For example, when the user turns on the naviga
tion system 300 in San Francisco, through a text-speech tech
nology, the system may say “Welcome to San Francisco,
would you like to know the top ten restaurants here?” If the
user answers “Yes”, the system would then tell the user the
top ten restaurants in San Francisco. Instead, if the user is not
20
storing the user’s ?rst position when the device is turned
off, retrieving a user’ s second position when the naviga
tion device is again turned on and comparing the user’s
second position with the user’ s ?rst position stored in the
25
determining whether the user is entering a new city
selected based on a range of population;
changing an image on a display unit to a new city message
interested in top ten restaurants, the navigation system 300
device;
may ask the user if the user needs other information about San
Francisco.
If the navigation system 300 indicates that the user is not in
a new city, the information providing unit 303 may not be
triggered to provide new city information to the user and
identical steps 850 to 860 may be repeated until the user is
entering a new city.
screen when the user is entering a new city of the
selected population range where the new city message
30
Having described the invention by the description and
illustrations above, it should be understood that these are
on the display unit;
exemplary of the invention and are not to be considered as
limiting. Accordingly, the invention is not to be considered as
limited by the foregoing description, but includes any equiva
35
lents.
What is claimed is:
1. A portable navigation system comprises:
a display unit con?gured to display images for navigation
operations including map images;
database.
40
determining whether the user is moving across city border
line or whether the user is moving a predetermined distance
away from an airport of the new city.
at least one database to store and provide maps, map
attributes, road networks, geographical features, and
45
a detecting unit communicatively coupled with the posi
9. The method of claim 6, wherein the step of allowing the
50
city information
wherein the detecting unit causes to change the images on
entering a new city of the selected population range
55
display.
60
detecting unit indicates the user is entering the new city when
the user is moving across city border line, or the user is
moving a predetermined distance away from an airport of the
new city.
3. The portable navigation system of claim 1, wherein the
portable navigation system further comprises a memory unit
adapted to store a ?rst visiting date of the new city, compare
user to retrieve new city information comprises a step of
retrieving the new city information from the database of a
navigation system, or from a remote server, the Internet or
other communication networks, and wherein the step of
determining whether the user is entering a new city comprises
the display to a new city message screen when the user is
2. The portable navigation system of claim 1, wherein the
8. The method of claim 7, wherein the detecting unit is
adapted to determine whether the user is moving across a city
border line or whether the user is moving a predetermined
distance away from an airport of the new city.
tion measuring unit and the database and con?gured to
where the new city message screen is con?gured to
allow the user to request new city information; and
wherein the information providing unit causes to produce
the new city information requested by the user on the
7. The method of claim 6, wherein the step of determining
whether the user is entering a new city comprises a step of
about current location of a user;
automatically detect whether the user is entering a new
city selected based on a range of population; and
an information providing unit con?gured to produce new
wherein the step of determining whether the user is enter
ing a new city comprises a step of automatically detect
ing whether the user is entering the new city of the
selected population range by a detecting unit communi
catively coupled with a position measuring unit and a
a position measuring unit adapted to receive information
point-of-interest (POI) information;
screen is con?gured to allow the user to request new city
information; and
displaying the new city information requested by the user
65
a step of providing a city selection table to the user to select
the size of the city to receive new city information.
10. The method of claim 6, wherein the step of displaying
the new city information to the user comprises a step of
storing a ?rst visiting date of the new city, comparing a second
visiting date with the ?rst visiting date of the new city, and if
the new city has been visited repeatedly within a predeter
mined period of time, the new city information is not dis
played to the user.
11. An apparatus for providing new city information to a
user comprises:
a user interface con?gured to display images including
map images;
US 8,798,903 B2
11
12
a position measuring unit to provide the user’s current
mines that the user is moving a predetermined distance away
from an airport of the new city.
position;
an information providing unit; and
a detecting unit,
wherein the position measuring unit stores a user’s ?rst
position where the apparatus is turned off and retrieves a
13. The apparatus of claim 11, wherein the apparatus fur
ther comprises a memory unit adapted to store a ?rst visiting
date of the new city, compare a second visiting date with the
?rst visiting date of the new city, and if the new city has been
user’s second position where the apparatus is again
turned on, and the information providing unit is adapted
visited repeatedly within a predetermined period of time, the
new city information is not displayed to the user.
to provide new city information to the user on the user
interface when the user is entering a new city selected
based on a range of population; and
10
wherein the detecting unit which is communicativer
coupled with the position measuring unit and at least one
map database, causes to change the images on the user
interface to a new city message screen when the user is 15
entering a new city of the selected population range
where the new city message screen is con?gured to
allow the user to request new city information; and
wherein the information providing unit causes to display
the new city information requested by the user on the
user interface.
12. The apparatus of claim 11, wherein the detecting unit
indicates the user is entering a new city when the user is
moving across city border line, or the detecting unit deter
14. The apparatus of claim 11, wherein the information
providing unit provides a city selection table which allows the
user to select the size of city to receive new city information,
and wherein the noti?cation message containing new city
information is provided to the user when the driver is entering
the new city of the user’s preferable size.
15. The apparatus of claim 11, wherein the new city infor
mation is stored in the database of the apparatus, or transmit
ted from a remote server, the lntemet or other communication
20
networks.
16. The apparatus of claim 11, wherein the user interface
comprises a voice recognition unit adapted to recognize the
user’ s response when the information providing unit provides
the new city information to the user by voice.
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