Patents Assigned to Xanavi Informatics Corporation
  • Navigation apparatus for receiving delivered information
    Patent number: 7383127
    Abstract: In a communication-type navigation system for downloading map data according to the present invention, a reduction in the amount of map information to be transferred, correction of a position measured by a GPS, and delivery of advertisements are effected. In this system, a terminal 5 stores rough map data in advance. Then, when detailed map data is required, it is downloaded from a map data delivery center to the terminal 5. Further, together with the map data, GPS correction information is delivered to the terminal 5 from the map data delivery center 80. Still further, coupon information associated with an advertisement is displayed and an electronic mail on the coupon information is issued, by the map data delivery center.
    Type: Grant
    Filed: September 30, 2005
    Date of Patent: June 3, 2008
    Assignees: Hitachi, Ltd., Xanavi Informatics Corporation
    Inventors: Shigeru Matsuo, Kimiyoshi Machii, Katsuaki Tanaka, Kozo Nakamura, Yoshinori Endo, Michio Morioka, Yoshitaka Sumitomo
  • Travel time calculating method and traffic information display method for a navigation device
    Patent number: 7376509
    Abstract: The navigation device of the present invention has a storage device which stores map data including link data of respective links constituting roads on a map, and statistical data including travel time (moving speed) which is determined by statistical values of traffic information collected in the past, with respect to each of the links. Then, the navigation device uses for each departure time candidate, the map data and the statistical data of collection conditions corresponding to the statuses upon passing each of the route constituting links which constitute the route, so as to obtain the travel time for each of the route constituting links. Thereafter, the travel times of respective route constituting links thus obtained are summed up, and the travel time between the departure position and the destination is obtained.
    Type: Grant
    Filed: March 30, 2004
    Date of Patent: May 20, 2008
    Assignee: Xanavi Informatics Corporation
    Inventors: Yoshinori Endo, Shinichi Amaya, Akio Sumizawa
  • On-vehicle information terminal abridged map generation apparatus and abridged map generation method
    Patent number: 7363150
    Abstract: An on-vehicle information terminal generates an abridged map by abridging a map based upon map data and displays the abridged map. The on-vehicle information terminal comprises an abridgment factor setting unit that sets an abridgment factor indicating an extent to which the map is to be abridged, a map abridging unit that generates the abridged map with specific contents in correspondence to the abridgment factor set by the abridgment factor setting unit and a display unit that displays the abridged map generated by the map abridging unit.
    Type: Grant
    Filed: September 15, 2004
    Date of Patent: April 22, 2008
    Assignee: Xanavi Informatics Corporation
    Inventors: Akio Sumizawa, Hiroshi Minagawa, Wataru Oikubo
  • On-Vehicle Navigation Apparatus And Subject Vehicle Position Correction Method
    Publication number: 20080077322
    Abstract: An on-vehicle navigation apparatus comprises a subject vehicle position detection unit that detects a position of a subject vehicle and a direction along which the subject vehicle is advancing, a road marker line detection unit that detects a road marker line in an image of a road captured with a camera, a map matching candidate identifying unit that identifies a road to be designated as a map matching candidate, a decision-making unit that makes a decision as to whether or not the subject vehicle is traveling on the road identified by the map matching candidate identifying unit, a map matching unit that correct the detected subject vehicle position so as to set the subject vehicle position onto the road on which the subject vehicle is determined to be traveling, and a subject vehicle position indicating unit that indicates the subject vehicle position having been corrected.
    Type: Application
    Filed: March 24, 2005
    Publication date: March 27, 2008
    Applicant: Xanavi Informatics Corporation
    Inventor: Akio Sumizawa
  • Vehicle Control System, Vehicle Control Method, and Vehicle Control Program
    Publication number: 20080077283
    Abstract: A vehicle control system includes a route setting unit for setting a route from a start point to a destination; an information obtaining unit for obtaining from a memory position information of at least one base point and at least one control point existing in the route set by the setting unit; a base point recognition unit for recognizing that a current position of a vehicle reaches a position of the base point obtained by the obtaining unit; a running situation monitoring unit for determining as a predetermined distance a running distance from the base point most lately recognized by the recognition unit; and a control unit for executing an advanced control to the vehicle if the predetermined distance obtained by the monitoring unit is shorter than any of first and second threshold distances, when the current position reaches a position of the control point obtained by the obtaining unit.
    Type: Application
    Filed: August 15, 2007
    Publication date: March 27, 2008
    Applicants: Hitachi, Ltd., Xanavi Informatics Corporation
    Inventors: Mikio UEYAMA, Masao Sakata
  • Traffic State Predicting Apparatus
    Publication number: 20080077316
    Abstract: A traffic state predicting apparatus, which predicts congestion states of parts of a link based on limited information (the travel time for the link), comprises storage means that stores link data including a link length of each link forming part of a road on a map and parameters including, for each link, a smooth traffic speed indicting being smooth, a congested traffic speed indicating being congested, and a congestion reference position which is a reference position for a congested section; means that acquires a predicted travel time for the link; and congestion degree classified section calculating means that obtains sections classified according to their level of congestion in the link with use of the predicted travel time and the parameters.
    Type: Application
    Filed: August 9, 2007
    Publication date: March 27, 2008
    Applicant: Xanavi Informatics Corporation
    Inventors: Kenichiro YAMANE, Hirotaka Takahashi, Mariko Okude
  • Navigation System Using Intersection Information
    Publication number: 20080077319
    Abstract: A navigation method and system for determining a desired geographic location. An intersection is first inputted by road names after which all intersections within a predetermined geographic area are identified which correspond to the inputted intersection. In the event that the number of identified intersections exceeds a predetermined threshold, additional information is optionally inputted regarding the desired geographic location and thereafter the identified locations are searched to determine the desired geographic location by utilizing the additional information.
    Type: Application
    Filed: September 27, 2006
    Publication date: March 27, 2008
    Applicant: Xanavi Informatics Corporation
    Inventors: Manabu Kato, Deepak Ramaswamy, Sadanori Horiguchi, Katsuaki Tanaka
  • Navigation apparatus, navigation system and route search method
    Publication number: 20080071471
    Abstract: This navigation apparatus includes a road setting unit that sets a road to be traversed between a departure point and a destination, the road being constituted by links for each of which a predetermined link cost is set, a replacement unit that replaces the links constituting the road to be traversed that has been set by the road setting unit, with a virtual link whose link cost is set to be smaller than the total of the link costs of the links for the road to be traversed, and a route search unit that searches for a recommended route from the departure point to the destination, based upon link costs set for links that constitute roads other than the road to be traversed, and the link cost set for the virtual link with which the road to be traversed has been replaced by the replacement unit.
    Type: Application
    Filed: March 29, 2007
    Publication date: March 20, 2008
    Applicant: Xanavi Informatics Corporation
    Inventors: Akio Sumizawa, Takayuki Sakakibara, Kenichi Maruta
  • Vehicle Speed Control System
    Publication number: 20080059036
    Abstract: A vehicle speed control system includes: a unit for computing a first target velocity based on map information; a unit for computing a second target velocity based on a road profile obtained from other information than the map information (such as lane recognition using a camera); a unit for comparing the first target velocity and the second target velocity; a unit for selecting a lower target velocity therefrom; and a unit for controlling a vehicle velocity in accordance with the selected target velocity.
    Type: Application
    Filed: July 3, 2007
    Publication date: March 6, 2008
    Applicant: Xanavi Informatics Corporation
    Inventors: Masato Imai, Hiroshi Sakamoto, Tatsuya Ochi, Takashi Okada, Toshimichi Minowa, Masao Sakata
  • System and Method for Collecting and Distributing Traffic Information
    Publication number: 20080059051
    Abstract: In a center apparatus, a feature space projection processing unit performs a feature space projection process for probe data corresponding to a road section which are stored in a current probe data storage unit to extract the feature data, and a change point detecting unit; an event section partitioning unit and an event assigning unit determine a road section corresponding to the feature data, and assign the event information to the determined road section; and an event information distributing unit distributes the event information assigned to the road section. In a vehicle-installed terminal apparatus, a probe data partitioning unit and an orthogonal component decomposition unit performs processes of partitioning and orthogonal component decomposition of the probe data using a feature score vector obtained from the center apparatus, to thereby reduce the probe data to be uplinked.
    Type: Application
    Filed: August 31, 2007
    Publication date: March 6, 2008
    Applicant: Xanavi Informatics Corporation
    Inventors: Masatoshi KUMAGAI, Tomoaki Hiruta, Mariko Okude, Koichiro Tanikoshi
  • Geographic data transmitting method, information delivering apparatus and information terminal
    Patent number: 7339496
    Abstract: A preferred route from a present place to a destination in decided based on geographical data including road shape information indicative of the shapes of roads and also including road connection information indicative of connection conditions between the roads, and then geographical data of areas existing within a predetermined distance from the decided preferred route are derived. Then, it is decided whether the road connection information should be deleted from the derived geographic data, and if so decided, the geographic data are transmitted with the road connection information deleted.
    Type: Grant
    Filed: October 1, 2003
    Date of Patent: March 4, 2008
    Assignee: Xanavi Informatics Corporation
    Inventors: Yoshinori Endo, Akio Sumizawa
  • On-vehicle display device and display method adopted in on-vehicle display device
    Publication number: 20080052627
    Abstract: An on-vehicle display device includes: an image generation unit that generates a first image that can be viewed from a driver's seat side and a second image that can be viewed from a passenger's seat side; and a display monitor at which the first image and the second image are displayed within a screen, and the image generation unit does not include an image of an icon or a button, operation of which by a driver is restricted, in the first image, includes the image of the icon or the button in the second image, and constantly changes a display position of the icon or the button in the second image.
    Type: Application
    Filed: June 29, 2007
    Publication date: February 28, 2008
    Applicant: XANAVI INFORMATICS CORPORATION
    Inventor: Junko Oguchi
  • Traffic Information Providing Device, Traffic Information Providing System, Traffic Information Transmission Method, and Traffic Information Request Method
    Publication number: 20080030371
    Abstract: A probe center server (10) previously performs filtering to determine whether or not a projection norm of a link in a feature space can be interpolated, and notifies a probe terminal (20) to preferentially collect and upload detected probe data for the link whose missing data can not be interpolated.
    Type: Application
    Filed: August 7, 2007
    Publication date: February 7, 2008
    Applicant: Xanavi Informatics Corporation
    Inventors: Masatoshi KUMAGAI, Mariko OKUDE, Koichiro TANIKOSHI
  • Navigation apparatus, map data distribution apparatus, map data distribution system and map display method
    Patent number: 7327366
    Abstract: A navigation apparatus includes a route searching unit that searches for a plurality of routes from a departure point to a destination and a map display control unit that displays a map of the plurality of routes searched out by the route searching unit upon a display monitor, and, if any two or more among the plurality of routes overlap upon and pass along a same road, the map display control unit displays the overlapping portions as shifted.
    Type: Grant
    Filed: October 18, 2005
    Date of Patent: February 5, 2008
    Assignee: Xanavi Informatics Corporation
    Inventors: Akio Sumizawa, Wataru Oikubo, Hiroshi Minagawa, Kishiko Maruyama, Akinori Asahara, Atsushi Hiroike
  • Navigation System
    Publication number: 20080027638
    Abstract: A navigation system includes: a search unit that executes a search for a route from a start point to a destination; a display unit at which the route determined through the search is displayed together with a roadmap; and a specification unit that specifies a range on the roadmap. If an entrance interchange into an express highway, present on the route determined through the search executed by the search unit and the start point are contained within the range specified via the specification unit, the search unit executes a search within the range to determine a first route from the start point to the entrance interchange present within the range and also executes a search for a second route from the entrance interchange to the destination; and the first route and the second route having been searched by the search unit are displayed at the display unit.
    Type: Application
    Filed: July 30, 2007
    Publication date: January 31, 2008
    Applicant: Xanavi Informatics Corporation
    Inventor: Kenji ANDO
  • Navigation device and simple/detailed information display method
    Publication number: 20080016443
    Abstract: A navigation device includes: a display monitor equipped with a touch panel with a display screen assuming a substantially rectangular shape; a display control unit that displays specific simple information over part of the display screen along a side of the display screen or in a corner of the display screen; and a touch position detection unit that detects a touch in a display area where the simple information is provided and then detects that a touch position of the touch has moved inward from an edge of the display screen. As the touch position detection unit detects that the touch position has moved, the display control unit displays at the display screen detailed information related to the simple information.
    Type: Application
    Filed: April 3, 2007
    Publication date: January 17, 2008
    Applicant: XANAVI INFORMATICS CORPORATION
    Inventors: Toshiaki Hiroshima, Kazuo Fukuda
  • Map Data Providing Method
    Publication number: 20080015770
    Abstract: A map data providing method for providing map data to be used in a navigation system includes: dividing an area over which the map data are available into a plurality of blocks by using each of a plurality of division patterns set so that blocks resulting from divisions with the plurality of division patterns are not identical to one another; generating map data in correspondence to each of the blocks resulting from the divisions achieved with the plurality of division patterns; and providing the map data corresponding to the individual blocks resulting from the divisions achieved with the plurality of division patterns to a user so as to allow the user to freely select map data corresponding to any block.
    Type: Application
    Filed: March 31, 2005
    Publication date: January 17, 2008
    Applicant: XANAVI INFORMATICS CORPORATION
    Inventor: Takashi Nomura
  • Update system and update method for updating search data
    Patent number: 7318054
    Abstract: A search data update system includes a navigation apparatus in which search data are used and a data provider center that provides the navigation apparatus with update data to be used to update the search data. The update data provided by the data provider center only include new search tree data and update entity data. The new search tree data assume a structure that enables specification of the update entity data and specification of the entity data in the original search data except for the entity data corresponding to the update entity data.
    Type: Grant
    Filed: February 25, 2005
    Date of Patent: January 8, 2008
    Assignee: Xanavi Informatics Corporation
    Inventor: Takashi Nomura
  • Navigation device and address input method thereof
    Patent number: 7295923
    Abstract: Voice input of an address, which is user-friendly and has improved recognition result accuracy. First, a whole street name (full name) is uttered and voice recognition is tried. Only if the voice recognition fails, at least one letter of a character string expressing the street name is uttered, and the letter is used to narrow down candidates for the street name.
    Type: Grant
    Filed: March 20, 2007
    Date of Patent: November 13, 2007
    Assignee: Xanavi Informatics Corporation
    Inventor: Yoshikazu Hirayama
  • Navigation system
    Publication number: 20070260395
    Abstract: A navigation system includes: a detection unit that detects a vehicle to be in a stationary state or in a traveling state; a display monitor at which a roadmap is displayed; and a manual route specification unit that allows a road traced on the display monitor to be specified as a route when the vehicle is detected to be in a stationary state by the detection unit and does not allow the road traced on the display monitor to be specified as the route when the vehicle is detected to be in a traveling state by the detection unit.
    Type: Application
    Filed: December 7, 2006
    Publication date: November 8, 2007
    Applicant: Xanavi Informatics Corporation
    Inventors: Yoji Matsuoka, Teruyuki Ishida, Keisuke Mutou, Takashi Yoshimaru, Mami Nomura, Takaaki Ishii, Tsugumichi Owaki