US20010056327A1 - Method and system for a real-time distributed navigation system - Google Patents

Method and system for a real-time distributed navigation system Download PDF

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Publication number
US20010056327A1
US20010056327A1 US09912762 US91276201A US2001056327A1 US 20010056327 A1 US20010056327 A1 US 20010056327A1 US 09912762 US09912762 US 09912762 US 91276201 A US91276201 A US 91276201A US 2001056327 A1 US2001056327 A1 US 2001056327A1
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user
location
invention
information
wireless
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US09912762
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US6401035B2 (en )
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HaiPing Jin
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Televigation Inc
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Televigation Inc
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    • GPHYSICS
    • G08SIGNALLING
    • G08GTRAFFIC CONTROL SYSTEMS
    • G08G1/00Traffic control systems for road vehicles
    • G08G1/09Arrangements for giving variable traffic instructions
    • G08G1/0962Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
    • G08G1/0968Systems involving transmission of navigation instructions to the vehicle
    • G08G1/096855Systems involving transmission of navigation instructions to the vehicle where the output is provided in a suitable form to the driver
    • G08G1/096861Systems involving transmission of navigation instructions to the vehicle where the output is provided in a suitable form to the driver where the immediate route instructions are output to the driver, e.g. arrow signs for next turn
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01CMEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C21/00Navigation; Navigational instruments not provided for in preceding groups
    • G01C21/26Navigation; Navigational instruments not provided for in preceding groups specially adapted for navigation in a road network
    • G01C21/34Route searching; Route guidance
    • G01C21/3453Special cost functions, i.e. other than distance or default speed limit of road segments
    • G01C21/3484Personalized, e.g. from learned user behaviour or user-defined profiles
    • GPHYSICS
    • G08SIGNALLING
    • G08GTRAFFIC CONTROL SYSTEMS
    • G08G1/00Traffic control systems for road vehicles
    • G08G1/005Traffic control systems for road vehicles including pedestrian guidance indicator
    • GPHYSICS
    • G08SIGNALLING
    • G08GTRAFFIC CONTROL SYSTEMS
    • G08G1/00Traffic control systems for road vehicles
    • G08G1/09Arrangements for giving variable traffic instructions
    • G08G1/0962Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
    • G08G1/0968Systems involving transmission of navigation instructions to the vehicle
    • G08G1/096877Systems involving transmission of navigation instructions to the vehicle where the input to the navigation device is provided by a suitable I/O arrangement
    • G08G1/096883Systems involving transmission of navigation instructions to the vehicle where the input to the navigation device is provided by a suitable I/O arrangement where input information is obtained using a mobile device, e.g. a mobile phone, a PDA

Abstract

An Interactive Real-Time Distributed Navigation system is disclosed. In the present invention a user's location is determined by generating a position signal at the user's location. Through wireless communication between the user and distributed navigation servers, the user is presented with a list of candidate locations. The user's choice from the candidate list are then used by the navigation servers to obtain an accurate measurement of the user's location. Having established a user's location, the system proceeds to provide navigational prompts to the user to reach a final destination.

Description

    FIELD OF THE INVENTION
  • [0001]
    This invention relates to navigation systems and location based information delivery. Specifically, this invention relates to a method and system for delivering interactive and real-time navigational information using distributed navigation information processing.
  • BACKGROUND OF THE INVENTION
  • [0002]
    Many navigation systems are based on satellite-based global positioning system (GPS) devices which have been applied in automobile navigation systems, see, e.g., U.S. Pat. Nos. 5,938,720, 5,928,307, 5,922,042, 5,912,635, 5,910,177, 5,904,728, 5,902,350, all incorporated herein by reference for all purposes. Such automobile navigation systems, however, are expensive and inconvenient to use. Many such systems are further not appropriate for walking. Therefore, there is a great need in the art to incorporate navigation systems in personal handheld devices.
  • [0003]
    However, there are several technical obstacles that prevent the incorporation of navigational capabilities in handheld devices for providing turn-by-turn real-time navigation services. One such obstacle is the amount of geographic data needed to provide reasonably detailed navigational information. Small handheld devices include cellular phones, personal digital assistants, or computers, however, the amount of embedded memory is limited and is impractical to store a large amount of geographic information. In existing automobile navigation systems, GPS systems are employed to provide information about the location and movement of a user. Geographic information is usually stored in a geographic mapping database stored on a CD-ROM, hard-disk drive device or other large capacity storage medium.
  • [0004]
    Another obstacle is that the lack of information processing power of small devices such as those mentioned above. For example, the information processing power of a cellular telephone is typically provided by an embedded microprocessor with limited memory. While the information processing power of embedded microprocessors is generally increasing, such processors are still not suitable for processor intensive real-time navigational tasks.
  • [0005]
    An additional obstacle is the insufficient location accuracy provided by current technology. Initial sources of inaccuracy of the GPS based systems, for example, are either imposed by the U.S. Department of Defense through Selective Availability (S/A), other sources of error are due to atmospheric and timing errors limiting the accuracy of a single GPS receiver to +/−50 meters. Methods exist which can be used to enchance accuracies to +/−5 meters. Such methods include Enhanced GPS systems (i.e., SnapTrack) and network based system (i.e., Truepoint). These methods use a known position, such as a survey control point, as a reference point to correct the GPS position error. These methods of correcting GPS positions are referred to as Differential GPS or DGPS. The DGPS corrections can be applied to the GPS data in real-time using data telemetry (radio modems). Toward expanding the use of DGPS, the United States and Candian Coast Guard are establishing a series of radio beacons to transmit the DGPS corrections for accurate navigation along the Great Lakes, the Mississippi River and tributaries, the Gulf Coast,and the Eastern and Western coasts of North America. However, such radio beacons are not available to consumers traveling in most inland locations.
  • [0006]
    Location information that is ambiguous due to a number of factors discussed above makes navigational systems difficult to develop. For example, if the user is driving in a downtown area with streets spaced close together, a GPS location within +/−50 meters is not adequate to give turn-by-turn directions. The GPS location information is thus considered ambiguous and inappropriate for navigation systems. In other situations, a GPS location within +/−50 meters is adequate for navigation purpose. For example, if a user is driving on a highway in a remote area without any nearby exits, the GPS location is sufficient for calculating further navigation directions. Thus, in such a situation, the GPS location is not ambiguous.
  • [0007]
    Current automobile GPS navigation systems make use of other sensors, such as accelerometers, speedometers, etc. plus some sophisticated filtering technology to improve the accuracy of a navigational system (see, e.g., U.S. Pat. No. 5,912,635, previously incorporated by reference for all purposes). In addition, many automobile-based navigational systems use map-aiding technology as well. However, for a navigational system implemented using handheld devices such as cellular telephones, it is impractical to have the handheld devices connected to external sensors, especially when the device is used while walking.
  • [0008]
    Accordingly, it would be desirable to provide a navigational system that provides accurate navigational instructions. It would further be desirable to provide a navigational system that can be implemented on an existing infrastructure and is adaptable to new infrastructures as they become available.
  • [0009]
    It would further be desirable to provide a navigational system that can be implemented on handheld devices with limited computational power as well as devices with enhanced computational power.
  • [0010]
    It would further be desirable to provide a navigational system that can make use of many forms of real time information to provide accurate location calculations as well as optimal navigation paths.
  • SUMMARY OF THE INVENTION
  • [0011]
    These and other objects are provided for by a system and method for interactive real-time distributed navigation. In an embodiment of the invention, a user advantageously makes use of an often under-utilized sensor—a user's eyes. Toward reducing an ambiguity associated with a location derived from a positional sensor, the present invention prompts for and utilizes a user's input. In an embodiment, a consolidated list of candidate locations are presented to a user. A user's selection from such list is then used to correct for errors in other position detecting sensors.
  • [0012]
    In another embodiment of the invention, an enhanced and simplified dynamic real-time navigation system is provided based upon distributed computing and database systems. In such a manner, wireless devices with limited computational power interact with distributed servers that execute any necessary intensive processing. In another embodiment, geographic map information databases are advantageously stored on distributed servers with large storage capacity.
  • [0013]
    In another embodiment, depending upon the capability of a user's device, data storage and navigation calculation load are dynamically distributed between the server and the device. In an embodiment, a user sends a request to navigate from a current location (or point A) to point B. A server, after receiving the request (including destination information) and user's location, the system of the present invention generates a global navigation route across several small geographic areas. The server then sends navigational information relating to a first small geographic area to the user's device. Once the user moves out of the first small geographical area, the information will be updated by the server either at the request of the user's device or initiated by the server based upon the location of the user.
  • [0014]
    Another aspect of the invention provides navigation guidance based on real-time traffic conditions. The traffic information can be obtained from a group of navigational service users, by observing their speeds and making comparisons. with the nominal street speed limits in a map database. This traffic information assists the system to determine an optimal route for its users in real-time. At each juncture, the system will dynamically determine an optimal path to get to the destination based on the traffic information. The best route can be defined based on the user's request, for example, it can be either time or gas consumption which will be minimized.
  • [0015]
    Another embodiment of the invention provides directions in a queue ahead of time. This is particularly important for wireless device navigation because of the small screen. For example, the server prompts, either by voice or text, “you are going to see University Ave. in about 5 minutes (or 500 yards), where you should turn right.” In the mean time, if not necessary, the communication link can be released to reduce the server traffic.
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • [0016]
    The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention:
  • [0017]
    [0017]FIG. 1 is a schematic showing One Embodiment of the Interactive Real-time Distributed Navigation System—User end;
  • [0018]
    [0018]FIG. 2 is a schematic showing an embodiment of the Interactive Real-time Distributed Navigation System—Architecture A (Internet);
  • [0019]
    [0019]FIG. 3 is a schematic showing another embodiment of the Interactive Real-time Distributed Navigation System—Architecture B (Direct links);
  • [0020]
    [0020]FIG. 4 is a schematic showing an embodiment of the interactive real-time distributed navigation system of the invention;
  • [0021]
    [0021]FIG. 5 is a schematic showing a method for navigating according to the invention; and
  • [0022]
    [0022]FIG. 6 is a flowchart of a method for navigation according to the invention.
  • DETAILED DESCRIPTION OF THE EMBODIMENTS
  • [0023]
    Reference will now be made in detail to the preferred embodiments of the invention, examples of which are illustrated in the accompanying drawings. While the invention will be described in conjunction with the preferred embodiments, it will be understood that they are not intended to limit the invention to these embodiments. The invention is intended to cover alternatives, modifications and equivalents, which may be included within the spirit and scope of the invention as defined by the appended claims.
  • [0024]
    As will be appreciated by one of skill in the art, the present invention may be embodied as a method, data processing system or program products. Accordingly, the present invention may take the form of navigation systems, navigation methods, navigation devices, navigation software, etc. Software written according to the present invention is to be stored in a form of computer readable medium, such as memory, or CD ROM, to be transmitted over a network, and executed by a processor.
  • [0025]
    A key component of a navigation system is the determination of the location (or position) of a user. It is intended that the term location (referred to herein as the measurement of a geographic location) includes information related to the position of an object. A location may contain three dimensional information that completely define the exact position of an object. In some embodiments, a location may contain two dimensional information to define an object in a two dimensional space. In some additional embodiments, a location may contain information that is not sufficient to completely define the position of an object. Broadly defined location, as used herein, also may include speed, time, direction of movement, etc. of an object.
  • [0026]
    One skilled in the art would appreciate that the format of location information is not critical to some embodiments of the invention. For example, in some embodiments, location information is presented in the format of (x, y), where x and y are two ordinates define the geographic location of an object, i.e., a user.
  • [0027]
    [0027]FIG. 2 shows an architecture for an Interactive Real-Time Distributed Navigation System in accordance with a preferred embodiment. The various components and their interaction will now be described. It is to be understood that where like numerals are used in different figures, such like numerals refer to the same item. Wireless device 202 may take the form of a cellular telephone, satellite telephone, wireless Personal Digital Assistant (PDA), personal computer or other suitable device having wireless communications capability. Wireless device 202 is equipped with positioning capability that takes the form of, for example, global positioning systems (GPS), emergency 911 (E911) location, or some other positioning systems as they become available. One skilled in the art will appreciate that the present invention is not limited to any particular positioning technology. In an embodiment, wireless device 202 is manufactured with built-in positioning capabilities. Advantageously, wireless device 202 does not need to carry map information, can carry a predetermined amount of map information, depending on the wireless device's 202 storage capability. Such a system is described as a distributed system and will be further discussed below.
  • [0028]
    In an embodiment, the capabilities of wireless device 202 are enhanced through interfacing with modular attachments. A major function of wireless device 202 is to provide an interface between the invention and a user. Furthermore, as will be described more fully below, wireless device 202 provides a user interface 205 for displaying graphical, textual or audible information. User interface 205 incorporates the user's sensory capabilities within the invention. User interface 205 is used to allow user interaction with electromechanical components of the invention. Such interaction is used to improve the positioning accuracy of the invention where interaction achieved through text, graphics or audible signals are within the scope of the invention.
  • [0029]
    Because wireless device 202 is capable of relaying information to a user by means of audible signals or through text messages displayed on wireless device 202, embodiments of the invention make use of audible sound producing devices, as well as, text displaying devices. Where a text displaying device is used, enhanced performance is achieved through a wireless device 202 capable of displaying several lines of text. An enhanced video display is also appropriate for wireless device 202 as maps and enhanced directional information are displayed on such devices. In another embodiment, wireless device 202 is directionally oriented through gyroscopic or geomagnetically enhancements, which are then used by the device or server to provide real time position and orientation information. One of skill in the art realizes that many more implementations are possible for wireless device 202 without deviating from the teachings of the invention.
  • [0030]
    As further shown in FIG. 2, wireless carrier 204 provides wireless connectivity between wireless device 202 and distributed navigation servers 212 to be described further below. Examples of wireless carrier 204 include cellular telephone carriers, satellite communications carriers or global positioning system carriers. In achieving wireless connectivity, wireless carriers provide an existing infrastructure for the wireless devices and distributed navigation servers. In an embodiment, GPS is used along with the government imposed selective availability. One with skill in the art will understand that where such limitation is removed, the present invention can further be enhanced. Because of the adaptive interaction with the user, information ranging from general to very specific is relayed to the user for a wide range of navigational applications.
  • [0031]
    While keeping within the teachings of the invention wireless carrier 204 provides positioning information such as through GPS, E911 or other positioning systems. Alternatively, positioning information is obtained through a third party and is then used by wireless carrier 204. For example, wireless service resellers, wireless internet service provides (ISPs), or satellite wireless carriers, among others, provide the services necessary to practice the invention. Importantly, wireless throughput and bandwidth continues to increase through the advent of digital transmission and through other techniques. Analog (i.e., AMPS) systems provide for a certain level of service. However, more advanced digital transmission techniques, such as, but not limited to GSM, TDMA, CDMA, provide higher data throughput. At the time of the invention, CDMA provides the highest throughput of information, however, it is expected that wireless technology will further be developed. Because of its broad application, the present invention is appropriate for these and many other transmission techniques. In an embodiment of the invention, wireless carrier 204 receives analog or digital information from the wireless device 202 and directs such information to other components of the invention. Similarly, wireless carrier 204 receives information from components of the invention and then directs such information to wireless device 204.
  • [0032]
    As shown in FIG. 2, wireless carrier 204 is connected to gateway 206 which provides an interface to network 208. Gateway 206 is provided by, among others, wireless carriers, ISPs, or other telecommunications providers. In an embodiment of the invention, network 208 is the Internet. The Internet provides advantages because it is a widely distributed network reaching many areas of the world. In another embodiment, network 208 is implemented as a proprietary network. By implementing a specialized network, network 208 may be customized to provide minimal latency and optimal performance.
  • [0033]
    As shown in FIG. 2, a plurality of distributed navigation servers 212 are incorporated as part of the invention by communicating using network 208. Distributed navigation servers 212 store street map information and point of interest information and further perform processing tasks. In this manner, wireless device 202 is not burdened with carrying all the necessary information for proper navigation. In an embodiment, distributed navigation servers 212 also process location specific information such as real-time traffic information. In an embodiment, traffic information is obtained from a group of navigation service users. By observing and comparing their positions, speeds and times, and making further comparisons with nominal street speed limits in a map database, real-time traffic information is generated and then used by the invention. At each juncture towards a destination, the system dynamically determines the optimal route for a particular user responsive to ever changing conditions. For example, where due to changed conditions a first route becomes less optimal, a second route is generated and presented to a user. An optimal route is determined in several ways depending on a user's preference. For example, an optimal route can be based on minimum time, minimum distance or minimum consumption of fuel. Processor intensive functions such as navigation guide algorithms are processed by distributed navigation servers 212 so as to reduce the computational burden on wireless device 202. As part of the processing function of distributed navigation servers 212, in an embodiment, these servers provide conversion functions such as between HDML or WML to HTML and vice versa.
  • [0034]
    An alternative embodiment for the system architecture of the present invention is shown in FIG. 3. As shown in FIG. 3, wireless device 202, wireless carrier 204 and distributed navigation servers 212 are substantially the same as described for FIG. 2. Direct links 210, however, provide an alternative embodiment to the function of gateway 206 and network 208 of FIG. 2. The direct link architecture is applicable where Internet infrastructure is not well established or fast response is desired for user navigation or other location specific information services. Illustratively, T1, Frame Relay, etc. linked by a LAN or WAN are appropriate for direct links 210. In another embodiment, direct links 210 are implemented as dedicated lines. Alternatively, direct links 210 are implemented as hard wired connections between wireless carrier 204 and distributed navigation servers 212 where wireless carrier 204 and distributed navigation servers 212 are collocated in a central office.
  • [0035]
    [0035]FIG. 6 shows steps of an interactive real-time distributed navigation system in accordance with a preferred embodiment. At step 602 a client transmits position information to a server and a server receives such information. In an embodiment, the client is a device such as wireless device 202 discussed with reference to FIG. 2. The server is a device such as distributed navigation server 212 also discussed with reference to FIG. 2. At step 604 a determination is made as to whether the position information is ambiguous. If the position information is not ambiguous, the server determines proper directions to a destination which are then transmitted by the server and received by the client at step 622.
  • [0036]
    A location contains various degrees of inaccuracies. For example, most GPS receivers can provide location information accurate to within a range of approximately 50 meters, i.e., an inaccuracy of around 50 meters. There are a number of known factors that may affect the accuracy of a location determination. Weather conditions may affect the accuracy of a GPS location determination. In an embodiment of the invention, a location, in addition to information defining the position of an object, is also associated with an estimated error and a range. One of skill in the art appreciates that the error of a positioning system is estimated based upon the characteristics of the positioning device and other factors including weather and transmission conditions.
  • [0037]
    Whether or not a location is ambiguous may be dependent upon many factors including, but not limited to: the accuracy associated with the location; attributes of a road network; recent traveling history; and map accuracy.
  • [0038]
    In general, the more accurate a location, the less likely it is ambiguous. The attributes of a road network, such direction, turns, etc., can be useful in removing ambiguity. Illustrations are helpful: if one is traveling in on a highway in a remote area without any exits, a location associated with error of around 50 meters is not ambiguous for navigation purpose, because the navigation direction will be “going along the highway”. Contrastingly, a location associated with an error of 50 meters is ambiguous if the location is within a business district of a downtown urban area where street blocks are less than 10 meters away. In an embodiment of the invention, whether a location is ambiguous is also dependent upon traffic regulations and traffic conditions. For example, if there are only two roads (Road A and B) within the range of a location (location+/−error), where the user is travelling at a speed of 55-80 miles/hr and road A has speed limit of 25 miles per hour, the location is unambiguous for the purpose of navigation because the user's location can be determined to be on Road B with a high degree of confidence.
  • [0039]
    A user's recent travel history is utilized in an embodiment of the invention to reduce ambiguity, for example, by performing a pattern recognition analysis of the user's travel history within a particular area. Illustratively, a user's travel history may be recorded or logged over a predetermined time and used in an auto-regressive manner.
  • [0040]
    Returning to the discussion of FIG. 6, if at step 604, the position information is determined to be ambiguous, further novel steps are taken to remove ambiguity of position information. With the received ambiguous position information in conjunction with an associated error for a particular positioning system in use, a query is made of a map database at step 606. From the query at step 606, a list is generated at step 608 of various candidate locations. In an embodiment of the invention, the candidate locations of step 608 are associated with notorious attributes such as landmarks, buildings, street intersections or street names, etc. One of skill in the art appreciates that various types of database structures can be useful for implementation with an embodiment of the invention. The aforementioned patents incorporated by reference also serve to demonstrate existing databases, search methods, and algorithms.
  • [0041]
    The list generated at step 608 may be unwieldy for purposes of displaying on wireless device 202 where such device has a small screen. Therefore, at step 610, the candidate list is consolidated to a smaller list. Illustratively and without limitation, a list of 400 candidate locations (“candidates”) is too large to display on an LCD screen of a typical cellular telephone or personal digital assistant. Through step 610, however, a shortened consolidated list is generated that can easily be displayed on a small screen. Known statistical and predictive methods are used to reduce the candidate list to only those candidates with a high probability of being a true location. Furthermore, historical or auto-regressive information may be used to further consolidate the list. In an alternative embodiment, a consolidated list is ranked based upon a probability of being closest to the user.
  • [0042]
    At step 612, the server then transmits and the client receives the consolidated list. At step 614, a user is incorporated into the present invention by sensing his surroundings and then selecting an appropriate choice from among the consolidated list presented on the client such as wireless device 202. This invention fully utilizes existing sensors—user's eyes and other human senses—to improve the accuracy of the position determination of the present invention. Through the user's sensory perception, the user interacts with the present invention to enhance the quality of its navigational directions. In this way, the user incorporates his eyes to confirm the navigation guide from the system. For example, when the user requests navigational guidance from the server, the server will compare the direct location measurement with a map. Because of the location determination accuracy is typically ambiguous, the user's true location may be different from what the location measurement indicates. Therefore, the navigation system of the invention employs user's eyes are used as additional sensors to the whole system to improve the location determination accuracy and navigation quality.
  • [0043]
    Illustratively and without limitation, at step 614, the user selects the closest landmark to assist the server in locating the user accurately. In another embodiment, a user is asked to select a candidate location in specified direction. An illustrative prompt is “Please select a candidate location directly in front of you.” In yet another embodiment, a user is asked to select multiple locations. Illustratively, a user is asked to pick 3 locations around him, such that averaging or triangulation techniques are available at step 618 to be discussed below. One of skill in the art appreciates that location information can be derived from the user and a user selection in other appropriate manners without deviation from the invention.
  • [0044]
    In embodiments of the invention, user interaction at step 614 is done audibly or textually. At step 616, the user selection is then transmitted by the client and received by the server. At step 618, an improved user location is calculated using the user selection information in several ways without deviating from the invention. In an embodiment, a user's locations is calculated based on the location of the user's selection. Alternatively, the user's location is calculated as a fimction of both the location of the user's selection and the ambiguous location determined by a location sensor. One of skill in the art will appreciate that there are other methods of calculating the location of a user.
  • [0045]
    At step 618, a digital filtering processes is used to determine calculate a user's location. In this manner, the interaction with the user is only necessary when the confidence level of the server in determining the user location is below a predetermined level. A confidence level is obtained by comparing the processed location to a map database. If an ambiguity exists at step 620, the steps 614-620 are repeated until an ambiguity no longer exists.
  • [0046]
    Having determined a location that is not ambiguous, at step 622, the server transmits appropriate navigational directions to the client and the client receives such directions and displays them to the user on wireless device 202.
  • [0047]
    [0047]FIG. 4—Distributed System
  • [0048]
    [0048]FIG. 4 shows an embodiment of how tasks are distributed between a client wireless device 202 (i.e., cellular telephone, PDA, or GPS receiver) and distributed navigation server 212 (see FIG. 2) in accordance with the method of FIG. 6. Advantageously, because of the distribution of tasks, wireless device 202 is implemented as a device of reduced size and weight thereby making it appropriate for driving as well as walking. At wireless device 212, step 602 is performed to generate position information of the user which is then communicated over a wireless medium to server 212 where step 604 is performed to determine whether the user's position information is ambiguous. If it is, server 212 then queries a database (step 606) of map information to generate a list (step 608). After consolidation (step 610), the consolidated list is then transmitted (step 612)over the wireless medium to the client wireless device 202, where it is displayed. After observing his surroundings, the user makes a selection (step 614) from the candidate list on wireless device 202. Such information is then transmitted (step 616) to the server where it is used to calculate an improved location (step 618). When the server 212 determines that the location is no longer ambiguous (step 620), the server prompts the user with navigational instructions (step 622).
  • [0049]
    In the description of FIGS. 6 and 4, an embodiment was described wherein the user wireless device 202 (see FIG. 2) is of limited processing and storage capability such that various steps were described as being performed by distributed servers 212. In this manner, wireless device 202 is implemented as a device with limited computational power where processor intensive tasks are distributed among the servers 212 One of skill in the art, however, appreciates that the method of the present invention is also appropriate on a wireless device 202 with enhanced capabilities. Illustratively and without limitation, where wireless device 202 contains an enhanced processor, memory, and high capacity storage space (i.e., hard drive), the steps of FIG. 6 described as being performed by the server, may be allocated to be performed at the client (i.e., wireless device 202). In such an embodiment, one of skill in the art will also appreciate that the client to server and server to client transmissions are appropriately reallocated. Furthermore, one of skill in the art appreciates that many different distributions of tasks remain within the scope of the invention.
  • [0050]
    With an understanding of the architecture and method of the present invention, a user's session with an embodiment of the present invention will now be described with reference to FIG. 1. In FIG. 1, wireless device 202 is implemented as a cellular telephone with a graphics display. Illustratively, wireless device 202 will be described in voice mode, but one of skill in the art will understand that the invention can be implemented in a text mode of operation. In a voice mode of operation, the system is implemented with voice recognition as well as grammar design capabilities. In an embodiment, the user begins a session with the invention by speaking into the device to provide a destination. With the destination information, the system the implements the method of the invention as described in FIG. 6. The system obtains position information and determines whether a position is ambiguous (steps 602-604). Upon querying the, generating a list, and consolidating a list, the system presents a list of selections to the user (steps 606-612). In the voice mode of operation being described here, the system may present a section as shown in text bubble 102 where the system synthesizes a voice to say, “If you are on El Camino Real, say or push 1; if you are on Alma say or push 2.” In the present example, the user observes his surroundings by reading a street sign. Assuming the user is on El Camino Real, the user says “1” to indicate the same. After appropriate processing as described for steps 614-622 of FIG. 6, the system removes the ambiguity of a user's location and correctly prompts him as shown in text bubble 106 by stating “You are approaching Grove Avenue, in about 5 minutes (or 200 yards) you should turn right.” In this manner, the system provides a navigational guide ahead of time, so the user can use his/her eyes to confirm the navigation guide from the system.
  • [0051]
    In another embodiment, wireless device 202 is provided with an enhanced graphics display such that graphics 104 is displayed on the device. With such an enhanced display, navigational prompts are further provided. For example, after determining a user is on El Camino, the user may be audibly told “You are on El Camino; follow the arrows on the display to reach your destination.” Illustratively, a direction arrow is displayed on the user device that provides instructions to the user as to where to proceed.
  • [0052]
    In another embodiment, where wireless device 202 is equipped with directional capabilities such as through the use of a gyroscope or geomagnetic sensing, the system provides real-time directional as well as navigational information. Illustratively, the system determines that the user must proceed north and the user is facing north, a device display shows an upward pointing arrow indicating that the user should proceed straight ahead. However, where the user must proceed north and he is facing south, the device display shows a downward pointing arrow indicating that the user should proceed backward or, more reasonably, turn around to face north and then proceed. In another implementation with a more enhanced display, more detailed and broader map information is displayed with more stylistic prompts to the user.
  • [0053]
    The invention further allows for the wireless device to be connected to an accessory display. For example, a wireless device 202 appropriate for walking is enhanced by interfacing with device with additional features such as a car-mounted display or portable computer to become better equipped for automobile navigation. In certain embodiments of the invention, the accessory device provides, without limitation, enhanced display capabilities, enhanced memory capacity, increased computational power, or increased throughput.
  • [0054]
    The foregoing descriptions of specific embodiments of the present invention have been presented for purposes of illustration and description. They are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Many modifications and variations are possible in light of the above teachings without deviation from the scope of the claims set out below. The embodiments were chosen and described in order to best explain the principles of the invention and its practical application, to thereby enable others skilled in the art to best utilize the invention and various embodiments with various modifications as are suited to the particular use contemplated.

Claims (26)

    What is claimed is:
  1. 1. A method for determining a user's location comprising the steps of:
    generating a position signal;
    determining a first approximation of the user's location using said position signal;
    querying a database of location information based upon said first approximation;
    generating a first set of candidates corresponding to locations in close proximity to the first approximation of a user's location;
    the user perceiving a vicinity of the user;
    the user selecting at least one preferred candidate from among the first set of locations according to a predetermined criteria;
    determining a second approximation of a user's location based upon said at least one preferred location, wherein said second approximation is more accurate than said first approximation.
  2. 2. The method of
    claim 1
    , wherein said predetermined criteria is said preferred location being closest to the user.
  3. 3. The method of
    claim 1
    , wherein said predetermined criteria is said preferred location being in front of the user.
  4. 4. The method of
    claim 1
    , wherein said step of generating a position signal uses a satellite based system.
  5. 5. The method of
    claim 4
    , wherein said satellite based system is a global positioning system.
  6. 6. The method of
    claim 1
    , wherein said step of generating a position signal uses a ground based system.
  7. 7. The method of
    claim 6
    , wherein said satellite based system is a cellular system.
  8. 8. The method of
    claim 1
    , wherein the steps are distributed among a client and a server.
  9. 9. The method of
    claim 1
    , wherein said step of generating a position signal uses a wireless client.
  10. 10. The method of
    claim 1
    , wherein said step of generating a first set of candidates further involves the step of ranking the first set of candidates locations based upon a second criteria.
  11. 11. A method for providing navigational prompts to a user comprising the steps of:
    inputting a destination;
    generating a position signal;
    determining a first approximation of a user's location using said position signal;
    querying a database of location information based upon said first approximation;
    generating a first set of candidates corresponding to locations in close proximity to the first approximation of a user's location;
    the user perceiving a vicinity of the user;
    the user selecting at least one preferred candidate from among the first set of locations according to a first predetermined criteria;
    determining a second approximation of a user's location based upon said preferred location, wherein said second approximation is more accurate than said first approximation;
    determining a path from the second approximation to the destination according to a second predetermined criteria;
    providing prompts to the user describing said path.
  12. 12. The method of
    claim 11
    , wherein said first predetermined criteria is said preferred location being closest to the user.
  13. 13. The method of
    claim 11
    , wherein said first predetermined criteria is said preferred location being in front of the user.
  14. 14. The method of
    claim 11
    , wherein said step of generating a position signal uses a satellite based system.
  15. 15. The method of
    claim 14
    , wherein said satellite based system is a global positioning system.
  16. 16. The method of
    claim 11
    , wherein said step of generating a position signal uses a ground based system.
  17. 17. The method of
    claim 16
    , wherein said satellite based system is a cellular system.
  18. 18. The method of
    claim 11
    , wherein the steps are distributed among a client and a server.
  19. 19. The method of
    claim 11
    , wherein said step of generating a position signal uses a wireless client.
  20. 20. The method of
    claim 11
    , wherein said step of generating a first set of candidates further involves the step of ranking the first set of candidates locations based upon a second criteria.
  21. 21. The method of
    claim 11
    , wherein said navigational prompts are descriptive relative to a reference location.
  22. 22. The method of
    claim 11
    , wherein said navigational prompts are relative to a user's direction.
  23. 23. The method of
    claim 1
    1, wherein said navigational prompts are provided audibly.
  24. 24. The method of
    claim 11
    , wherein said navigational prompts are provided graphically.
  25. 25. The method of
    claim 11
    , wherein said first predetermined criteria is candidates surrounding the user.
  26. 26. The method of
    claim 11
    , wherein said steps of inputting a destination is performed audibly, the user selecting at least one preferred candidate from among the first set of locations according to a first predetermined criteria, or providing prompts to the user describing said path are performed audibly.
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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1377085A1 (en) * 2002-06-20 2004-01-02 Sonera Oyj Positioning based on a reference
US6904364B2 (en) 2002-04-02 2005-06-07 William S. Randazzo Navcell pier to pier GPS
US20070106465A1 (en) * 2005-10-10 2007-05-10 Tomtom International B.V. Method of planning a route to a destination
US20110196607A1 (en) * 2010-02-06 2011-08-11 Htc Corporation Navigation method and electronic apparatus with navigation function
US8725120B2 (en) * 1999-12-29 2014-05-13 Crystal Development Consulting Services L.L.C. Internet system for connecting client-travelers with geographically-associated data
JP2014194780A (en) * 2009-05-08 2014-10-09 Google Inc Refined location estimates and reverse geocoding based on user profile
EP2869606A4 (en) * 2012-06-27 2015-09-02 Ntt Docomo Inc Information processing device, information provision method and program
US20150345953A1 (en) * 2013-06-28 2015-12-03 Kabushiki Kaisha Toshiba Electronic device and storage medium
WO2016191737A3 (en) * 2015-05-27 2017-02-09 Apple Inc. Systems and methods for proactively identifying and surfacing relevant content on a touch-sensitive device

Families Citing this family (126)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1287640A (en) 1998-10-28 2001-03-14 维迪科隆有限公司 Apparatus and method for automated aggregation and delivery of electronic personal information or data
US6477565B1 (en) * 1999-06-01 2002-11-05 Yodlee.Com, Inc. Method and apparatus for restructuring of personalized data for transmission from a data network to connected and portable network appliances
US7085997B1 (en) 1998-12-08 2006-08-01 Yodlee.Com Network-based bookmark management and web-summary system
US8069407B1 (en) 1998-12-08 2011-11-29 Yodlee.Com, Inc. Method and apparatus for detecting changes in websites and reporting results to web developers for navigation template repair purposes
US7752535B2 (en) 1999-06-01 2010-07-06 Yodlec.com, Inc. Categorization of summarized information
US7672879B1 (en) 1998-12-08 2010-03-02 Yodlee.Com, Inc. Interactive activity interface for managing personal data and performing transactions over a data packet network
US7680644B2 (en) 2000-08-04 2010-03-16 Wireless Valley Communications, Inc. Method and system, with component kits, for designing or deploying a communications network which considers frequency dependent effects
WO2001018679A3 (en) 1999-09-10 2001-12-20 Everypath Inc Method for converting two-dimensional data into a canonical representation
US6266615B1 (en) * 1999-09-27 2001-07-24 Televigation, Inc. Method and system for an interactive and real-time distributed navigation system
US6654683B2 (en) 1999-09-27 2003-11-25 Jin Haiping Method and system for real-time navigation using mobile telephones
US6826472B1 (en) * 1999-12-10 2004-11-30 Tele Atlas North America, Inc. Method and apparatus to generate driving guides
US6405123B1 (en) 1999-12-21 2002-06-11 Televigation, Inc. Method and system for an efficient operating environment in a real-time navigation system
US6615131B1 (en) 1999-12-21 2003-09-02 Televigation, Inc. Method and system for an efficient operating environment in a real-time navigation system
US8452776B2 (en) * 1999-12-22 2013-05-28 Celeritasworks, Llc Spatial data portal
US7447509B2 (en) * 1999-12-22 2008-11-04 Celeritasworks, Llc Geographic management system
US6347281B1 (en) * 2000-03-08 2002-02-12 R. Mark Litzsinger Remote global positioning device and method
US6603984B2 (en) * 2000-05-16 2003-08-05 At&T Wireless Services, Inc. Methods and systems for managing information on wireless data devices
US6456234B1 (en) 2000-06-07 2002-09-24 William J. Johnson System and method for proactive content delivery by situation location
US8060389B2 (en) 2000-06-07 2011-11-15 Apple Inc. System and method for anonymous location based services
US6438575B1 (en) * 2000-06-07 2002-08-20 Clickmarks, Inc. System, method, and article of manufacture for wireless enablement of the world wide web using a wireless gateway
US8489669B2 (en) 2000-06-07 2013-07-16 Apple Inc. Mobile data processing system moving interest radius
US6971063B1 (en) * 2000-07-28 2005-11-29 Wireless Valley Communications Inc. System, method, and apparatus for portable design, deployment, test, and optimization of a communication network
US6625454B1 (en) 2000-08-04 2003-09-23 Wireless Valley Communications, Inc. Method and system for designing or deploying a communications network which considers frequency dependent effects
US6810323B1 (en) * 2000-09-25 2004-10-26 Motorola, Inc. System and method for storing and using information associated with geographic locations of interest to a mobile user
US6973622B1 (en) 2000-09-25 2005-12-06 Wireless Valley Communications, Inc. System and method for design, tracking, measurement, prediction and optimization of data communication networks
US7376640B1 (en) * 2000-11-14 2008-05-20 At&T Delaware Intellectual Property, Inc. Method and system for searching an information retrieval system according to user-specified location information
US6424910B1 (en) * 2000-11-22 2002-07-23 Navigation Technologies Corp. Method and system for providing related navigation features for two or more end users
US6490521B2 (en) * 2000-12-28 2002-12-03 Intel Corporation Voice-controlled navigation device utilizing wireless data transmission for obtaining maps and real-time overlay information
KR20070054759A (en) * 2001-01-24 2007-05-29 텔레비게이션 인크 Navigation system for mobile environment
US7774453B2 (en) * 2001-01-31 2010-08-10 International Business Machines Corporation System and method for handling location information
CN100529793C (en) 2002-02-27 2009-08-19 白中泽 Method and system for active object search navigation
WO2002071777A1 (en) * 2001-03-01 2002-09-12 Digislide International Pty Ltd An apparatus and method for providing local geographical information to remote communication devices
US6826477B2 (en) * 2001-04-23 2004-11-30 Ecole Polytechnique Federale De Lausanne (Epfl) Pedestrian navigation method and apparatus operative in a dead reckoning mode
JP2002340605A (en) * 2001-05-15 2002-11-27 Yamaha Corp Portable communication device, navigation server and navigation system
JP4453796B2 (en) * 2001-05-29 2010-04-21 日本電気株式会社 Position information display terminal map display method and system of
JP3961784B2 (en) * 2001-06-01 2007-08-22 株式会社エヌ・ティ・ティ・ドコモ Positioning device, the positioning result correction method, a program and a recording medium
JP2003050846A (en) * 2001-08-07 2003-02-21 Hitachi Ltd Information transmission system, travel server and portable terminal used for the same and information transmission method
JP3882554B2 (en) * 2001-09-17 2007-02-21 日産自動車株式会社 Navigation device
JP2003106862A (en) * 2001-09-28 2003-04-09 Pioneer Design Kk Map plotting apparatus
US8977284B2 (en) 2001-10-04 2015-03-10 Traxcell Technologies, LLC Machine for providing a dynamic data base of geographic location information for a plurality of wireless devices and process for making same
US7466992B1 (en) 2001-10-18 2008-12-16 Iwao Fujisaki Communication device
DE10200395A1 (en) * 2001-11-09 2003-08-21 Sin Etke Technology Co Compact satellite navigation system and associated method
US6741926B1 (en) * 2001-12-06 2004-05-25 Bellsouth Intellectual Property Corporation Method and system for reporting automotive traffic conditions in response to user-specific requests
US6973384B2 (en) 2001-12-06 2005-12-06 Bellsouth Intellectual Property Corporation Automated location-intelligent traffic notification service systems and methods
US6704645B1 (en) * 2001-12-11 2004-03-09 Garmin Ltd. System and method for estimating impedance time through a road network
US6574554B1 (en) * 2001-12-11 2003-06-03 Garmin Ltd. System and method for calculating a navigation route based on non-contiguous cartographic map databases
EP1322125A1 (en) * 2001-12-20 2003-06-25 Siemens Aktiengesellschaft Process for locating places using a voice server
US6581003B1 (en) * 2001-12-20 2003-06-17 Garmin Ltd. Systems and methods for a navigational device with forced layer switching based on memory constraints
US6545637B1 (en) * 2001-12-20 2003-04-08 Garmin, Ltd. Systems and methods for a navigational device with improved route calculation capabilities
US7184886B1 (en) * 2001-12-21 2007-02-27 Garmin Ltd. Navigation system, method and device with detour algorithm
US6975940B1 (en) 2001-12-21 2005-12-13 Garmin Ltd. Systems, functional data, and methods for generating a route
US20030218638A1 (en) * 2002-02-06 2003-11-27 Stuart Goose Mobile multimodal user interface combining 3D graphics, location-sensitive speech interaction and tracking technologies
US20040243533A1 (en) * 2002-04-08 2004-12-02 Wsi Corporation Method for interactively creating real-time visualizations of traffic information
US6807483B1 (en) 2002-10-11 2004-10-19 Televigation, Inc. Method and system for prediction-based distributed navigation
US20040204831A1 (en) * 2002-10-30 2004-10-14 Denis Pochuev System and method of locating a resource device from a wireless device
US7565153B2 (en) * 2003-01-22 2009-07-21 Cml Emergency Services Inc. Method and system for delivery of location specific information
DE602004006328T2 (en) * 2003-03-07 2008-01-10 Ntt Docomo Inc. Information providing system
US20040243307A1 (en) * 2003-06-02 2004-12-02 Pieter Geelen Personal GPS navigation device
US20070027903A1 (en) * 2004-02-19 2007-02-01 Evans Scott A Community Awareness Management Systems and Methods
US7827120B1 (en) 2004-02-19 2010-11-02 Celeritasworks Llc Community awareness management systems and methods
US20070016565A1 (en) * 2004-02-19 2007-01-18 Evans Scott A Community Awareness Management Systems and Methods
US20050227704A1 (en) * 2004-03-26 2005-10-13 Joseph Ferra Facilitating entering location data
US8073422B2 (en) * 2004-06-07 2011-12-06 Cassidian Communications, Inc. Satellite radio warning system and method
US20040233069A1 (en) * 2004-06-28 2004-11-25 Jogesh Warrior Method and system for specifying a location using a wireless device
DE112005001761T5 (en) * 2004-07-23 2007-05-24 Wireless Valley Communications, Inc., Austin System, method and apparatus for determining and using a position of wireless devices or infrastructure in order to improve a wireless network
USRE45264E1 (en) 2004-08-31 2014-12-02 Visual Real Estate, Inc. Methods and apparatus for generating three-dimensional image data models
FR2875365B1 (en) * 2004-09-14 2007-02-02 Cit Alcatel Method for aiding the guidance of a mobile device user
KR20060096729A (en) * 2005-03-02 2006-09-13 삼성전자주식회사 Personal navigation system and method for guiding path in personal navigation system
US7353034B2 (en) 2005-04-04 2008-04-01 X One, Inc. Location sharing and tracking using mobile phones or other wireless devices
US7761226B1 (en) 2005-07-27 2010-07-20 The United States Of America As Represented By The Secretary Of The Navy Interactive pedestrian routing system
US20070050128A1 (en) * 2005-08-31 2007-03-01 Garmin Ltd., A Cayman Islands Corporation Method and system for off-board navigation with a portable device
US8306556B2 (en) 2006-02-08 2012-11-06 Telenav, Inc. Intelligent real-time distributed traffic sampling and navigation system
US7925320B2 (en) 2006-03-06 2011-04-12 Garmin Switzerland Gmbh Electronic device mount
US8208949B2 (en) * 2006-03-16 2012-06-26 Marc Stuart Cox Navigation system for portable communication devices
US7571048B2 (en) * 2006-08-18 2009-08-04 Google Inc. Providing routing information based on ambiguous locations
US7606752B2 (en) 2006-09-07 2009-10-20 Yodlee Inc. Host exchange in bill paying services
US7512487B1 (en) * 2006-11-02 2009-03-31 Google Inc. Adaptive and personalized navigation system
US7929800B2 (en) 2007-02-06 2011-04-19 Meadow William D Methods and apparatus for generating a continuum of image data
US8990003B1 (en) * 2007-04-04 2015-03-24 Harris Technology, Llc Global positioning system with internet capability
JP4465631B2 (en) * 2007-05-10 2010-05-19 ソニー株式会社 Location registration method in a navigation device and a navigation device
WO2009003194A1 (en) * 2007-06-27 2008-12-31 T-Mobile Usa, Inc. Method and system for a communications information interface
US8275352B2 (en) 2007-06-28 2012-09-25 Apple Inc. Location-based emergency information
US8290513B2 (en) 2007-06-28 2012-10-16 Apple Inc. Location-based services
US8311526B2 (en) 2007-06-28 2012-11-13 Apple Inc. Location-based categorical information services
US8180379B2 (en) 2007-06-28 2012-05-15 Apple Inc. Synchronizing mobile and vehicle devices
US8774825B2 (en) 2007-06-28 2014-07-08 Apple Inc. Integration of map services with user applications in a mobile device
US8762056B2 (en) 2007-06-28 2014-06-24 Apple Inc. Route reference
US8463238B2 (en) 2007-06-28 2013-06-11 Apple Inc. Mobile device base station
US9066199B2 (en) 2007-06-28 2015-06-23 Apple Inc. Location-aware mobile device
US8332402B2 (en) 2007-06-28 2012-12-11 Apple Inc. Location based media items
US9109904B2 (en) 2007-06-28 2015-08-18 Apple Inc. Integration of map services and user applications in a mobile device
US8385946B2 (en) 2007-06-28 2013-02-26 Apple Inc. Disfavored route progressions or locations
US8175802B2 (en) * 2007-06-28 2012-05-08 Apple Inc. Adaptive route guidance based on preferences
US8204684B2 (en) 2007-06-28 2012-06-19 Apple Inc. Adaptive mobile device navigation
US8108144B2 (en) 2007-06-28 2012-01-31 Apple Inc. Location based tracking
KR101423928B1 (en) * 2007-08-20 2014-07-28 삼성전자주식회사 Image reproducing apparatus which uses the image files comprised in the electronic map, image reproducing method for the same, and recording medium which records the program for carrying the same method.
KR101387504B1 (en) 2007-08-20 2014-04-21 엘지전자 주식회사 Terminal having function for managing position information and program recording medium
US8127246B2 (en) 2007-10-01 2012-02-28 Apple Inc. Varying user interface element based on movement
US8977294B2 (en) 2007-10-10 2015-03-10 Apple Inc. Securely locating a device
US8355862B2 (en) 2008-01-06 2013-01-15 Apple Inc. Graphical user interface for presenting location information
US8452529B2 (en) 2008-01-10 2013-05-28 Apple Inc. Adaptive navigation system for estimating travel times
US8207964B1 (en) 2008-02-22 2012-06-26 Meadow William D Methods and apparatus for generating three-dimensional image data models
US9014658B2 (en) 2008-03-14 2015-04-21 William J. Johnson System and method for application context location based configuration suggestions
US8750841B2 (en) * 2008-03-14 2014-06-10 William J. Johnson System and method for automatically leaving an outgoing caller message
US8566839B2 (en) 2008-03-14 2013-10-22 William J. Johnson System and method for automated content presentation objects
US8639267B2 (en) * 2008-03-14 2014-01-28 William J. Johnson System and method for location based exchanges of data facilitating distributed locational applications
US8761751B2 (en) * 2008-03-14 2014-06-24 William J. Johnson System and method for targeting data processing system(s) with data
US8600341B2 (en) 2008-03-14 2013-12-03 William J. Johnson System and method for location based exchanges of data facilitating distributed locational applications
US8634796B2 (en) 2008-03-14 2014-01-21 William J. Johnson System and method for location based exchanges of data facilitating distributed location applications
US8261334B2 (en) 2008-04-25 2012-09-04 Yodlee Inc. System for performing web authentication of a user by proxy
US9250092B2 (en) 2008-05-12 2016-02-02 Apple Inc. Map service with network-based query for search
US8644843B2 (en) 2008-05-16 2014-02-04 Apple Inc. Location determination
US8369867B2 (en) 2008-06-30 2013-02-05 Apple Inc. Location sharing
US8392112B2 (en) * 2008-08-29 2013-03-05 General Motors Llc. Dynamic determination of optimal route delivery method
US8359643B2 (en) 2008-09-18 2013-01-22 Apple Inc. Group formation using anonymous broadcast information
US8555359B2 (en) 2009-02-26 2013-10-08 Yodlee, Inc. System and methods for automatically accessing a web site on behalf of a client
US8666367B2 (en) 2009-05-01 2014-03-04 Apple Inc. Remotely locating and commanding a mobile device
US8670748B2 (en) 2009-05-01 2014-03-11 Apple Inc. Remotely locating and commanding a mobile device
US8660530B2 (en) 2009-05-01 2014-02-25 Apple Inc. Remotely receiving and communicating commands to a mobile device for execution by the mobile device
US8291459B2 (en) * 2009-07-15 2012-10-16 Comcast Cable Communications, Llc Communication signaling engine
CN101876549B (en) 2010-01-25 2013-04-10 青岛海信移动通信技术股份有限公司 Method and mobile terminal for navigating by geographical positions
US8428866B1 (en) * 2010-07-12 2013-04-23 Google Inc. System and method of providing turn-by-turn directions to non-specific destinations
CN102625229A (en) * 2011-01-27 2012-08-01 腾讯科技(深圳)有限公司 Method and system for realizing location positioning
CN103023945B (en) * 2011-09-28 2016-01-13 腾讯科技(深圳)有限公司 A related terminal location information transmission method and system
US8855901B2 (en) 2012-06-25 2014-10-07 Google Inc. Providing route recommendations
US9198004B2 (en) 2013-02-27 2015-11-24 Qualcomm Incorporated User-in-the-loop architecture for indoor positioning

Family Cites Families (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5579535A (en) * 1991-07-01 1996-11-26 Motorola, Inc. Personal communication system providing supplemental information mode
US5543789A (en) * 1994-06-24 1996-08-06 Shields Enterprises, Inc. Computerized navigation system
JP3365054B2 (en) * 1994-06-29 2003-01-08 カシオ計算機株式会社 Location information transmission system and a location information management device for use therein
US5528248A (en) 1994-08-19 1996-06-18 Trimble Navigation, Ltd. Personal digital location assistant including a memory cartridge, a GPS smart antenna and a personal computing device
US5610821A (en) * 1994-11-18 1997-03-11 Ibm Corporation Optimal and stable route planning system
US5938720A (en) 1995-02-09 1999-08-17 Visteon Technologies, Llc Route generation in a vehicle navigation system
EP0819295B1 (en) 1995-04-06 1999-05-12 DeTeMobil Deutsche Telekom MobilNet GmbH Process for a vehicle control and information system
US5774828A (en) * 1995-04-07 1998-06-30 Delco Electronics Corporation Mapless GPS navigation system with user modifiable data base
US5742509A (en) 1995-04-11 1998-04-21 Trimble Navigation Limited Personal tracking system integrated with base station
US5898390A (en) 1995-09-14 1999-04-27 Zexel Corporation Method and apparatus for calibration of a distance sensor in a vehicle navigation system
KR100235239B1 (en) 1995-09-29 1999-12-15 모리 하루오 Building shape output apparatus and method thereof, map display apparauts and method thereof, and navigation apparatus and method thereof
US5933100A (en) * 1995-12-27 1999-08-03 Mitsubishi Electric Information Technology Center America, Inc. Automobile navigation system with dynamic traffic data
JP2910674B2 (en) 1996-05-28 1999-06-23 日本電気株式会社 Navigation system of mobile phone by voice
DE19621424A1 (en) * 1996-05-28 1997-12-04 Telemedia Gmbh Scanned data selection method for momentary vehicle position
US6199045B1 (en) 1996-08-15 2001-03-06 Spatial Adventures, Inc. Method and apparatus for providing position-related information to mobile recipients
US5922042A (en) 1996-09-30 1999-07-13 Visteon Technologies, Llc Automatic resumption of route guidance in vehicle navigation system
US5904728A (en) 1996-10-11 1999-05-18 Visteon Technologies, Llc Voice guidance timing in a vehicle navigation system
US5938721A (en) 1996-10-24 1999-08-17 Trimble Navigation Limited Position based personal digital assistant
US5902350A (en) 1996-10-30 1999-05-11 Visteon Technologies, Llc Generating a maneuver at the intersection through a turn lane
US5910177A (en) 1996-12-09 1999-06-08 Visteon Technologies, Llc Navigating close proximity routes with a vehicle navigation system
US5928307A (en) 1997-01-15 1999-07-27 Visteon Technologies, Llc Method and apparatus for determining an alternate route in a vehicle navigation system
US5987381A (en) 1997-03-11 1999-11-16 Visteon Technologies, Llc Automobile navigation system using remote download of data
US6021371A (en) * 1997-04-16 2000-02-01 Trimble Navigation Limited Communication and navigation system incorporating position determination
US6212472B1 (en) * 1997-09-04 2001-04-03 Visteon Technologies, Llc Method and apparatus for displaying current vehicle position
US6055478A (en) 1997-10-30 2000-04-25 Sony Corporation Integrated vehicle navigation, communications and entertainment system
US6088594A (en) * 1997-11-26 2000-07-11 Ericsson Inc. System and method for positioning a mobile terminal using a terminal based browser
US6014090A (en) 1997-12-22 2000-01-11 At&T Corp. Method and apparatus for delivering local information to travelers
US6266615B1 (en) * 1999-09-27 2001-07-24 Televigation, Inc. Method and system for an interactive and real-time distributed navigation system

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9299088B2 (en) 1999-12-29 2016-03-29 Cufer Asset Ltd. L.L.C. Internet system for connecting client-travelers with geographically-associated data
US8725120B2 (en) * 1999-12-29 2014-05-13 Crystal Development Consulting Services L.L.C. Internet system for connecting client-travelers with geographically-associated data
US6904364B2 (en) 2002-04-02 2005-06-07 William S. Randazzo Navcell pier to pier GPS
EP1377085A1 (en) * 2002-06-20 2004-01-02 Sonera Oyj Positioning based on a reference
US20070106465A1 (en) * 2005-10-10 2007-05-10 Tomtom International B.V. Method of planning a route to a destination
JP2014194780A (en) * 2009-05-08 2014-10-09 Google Inc Refined location estimates and reverse geocoding based on user profile
US20110196607A1 (en) * 2010-02-06 2011-08-11 Htc Corporation Navigation method and electronic apparatus with navigation function
EP2869606A4 (en) * 2012-06-27 2015-09-02 Ntt Docomo Inc Information processing device, information provision method and program
US9451409B2 (en) 2012-06-27 2016-09-20 Ntt Docomo, Inc. Information processing device, information providing method, and program
US20150345953A1 (en) * 2013-06-28 2015-12-03 Kabushiki Kaisha Toshiba Electronic device and storage medium
WO2016191737A3 (en) * 2015-05-27 2017-02-09 Apple Inc. Systems and methods for proactively identifying and surfacing relevant content on a touch-sensitive device

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CA2385171A1 (en) 2001-04-05 application
DE60019951T2 (en) 2006-05-04 grant
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EP1222647A4 (en) 2003-01-08 application
EP1222647B1 (en) 2005-05-04 grant
CA2385171C (en) 2009-09-08 grant
DE60019951D1 (en) 2005-06-09 grant
WO2001024138A1 (en) 2001-04-05 application
EP1222647A1 (en) 2002-07-17 application
CN1391687A (en) 2003-01-15 application
US6401035B2 (en) 2002-06-04 grant
US6266615B1 (en) 2001-07-24 grant

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