Patents by Inventor Hiroyoshi Masuda

Hiroyoshi Masuda has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 9347781
    Abstract: A navigation device includes a GPS receiver, map data including tunnel data and periodically acquires a vehicle's speed to provide guidance on the current position N acquired at the GPS receiver, and when GPS radio waves become unreceivable after the vehicle passes a tunnel entrance, calculates a travel distance according to a vehicle speed and a time T up to a branch, and continues providing guidance on the current position up to the branch. After passing the branch, the navigation device suspends guidance, calculates a distance La between the branch and a tunnel exit, which is shorter, and when GPS radio waves are not received even after a movement distance from the branch exceeds distance La, after passing the branch, determines a road whose distance is longer as the road being traveled, and provides guidance on the current position.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: May 24, 2016
    Assignee: AISIN AW CO., LTD.
    Inventors: Hiroyoshi Masuda, Yohei Ando, Yusuke Oohashi
  • Publication number: 20150285648
    Abstract: A route guidance device configured so as to be freely attachable and detachable with respect to an in-vehicle device includes a route acquiring part that acquires a vehicle route calculated based on vehicle map data and acquires a pedestrian route calculated based on the pedestrian map data; and a display that outputs the vehicle route and the pedestrian route acquired by the route acquiring part. The route acquiring part, when the route guidance device has been detached from the in-vehicle device, acquires a pedestrian route calculated based on a destination having been set to acquire the vehicle route before detachment, or when the route guidance device has been attached to the in-vehicle device, acquires a vehicle route calculated based on a destination having been set to acquire the pedestrian route before attachment.
    Type: Application
    Filed: March 22, 2013
    Publication date: October 8, 2015
    Applicant: AISIN AW CO., LTD.
    Inventors: Hiroyoshi Masuda, Koichi Ushida, Shin Yanagisawa, Kazuki Inoue
  • Patent number: 9074902
    Abstract: When an update instruction to update “A” navigation map information and “B” navigation map information is inputted, a CPU initializes the storage area having stored therein no map information currently in use out of the two storage areas. The CPU then reads, from a CD-ROM, the latest version of the “A” navigation map information or the “B” navigation map information that corresponds to the map information currently in use, and stores it in the initialized storage area. The CPU then updates management information, starts use of the newly stored map information, initializes the storage area having stored therein the map information whose use is stopped out of the two storage areas, reads, from the CD-ROM, the latest version of the “A” navigation map information or the “B” navigation map information not currently in use, and stores it in the initialized storage area.
    Type: Grant
    Filed: February 9, 2010
    Date of Patent: July 7, 2015
    Assignees: AISIN AW CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA, DENSO CORPORATION
    Inventors: Hikaru Nagasaka, Hiroyoshi Masuda, Tetsuo Kumagai, Tomoki Kodan, Kazunori Watanabe, Yasutaka Atarashi, Takayuki Watanabe
  • Publication number: 20150149075
    Abstract: A navigation device includes a GPS receiver, map data including tunnel data and periodically acquires a vehicle's speed to provide guidance on the current position N acquired at the GPS receiver, and when GPS radio waves become unreceivable after the vehicle passes a tunnel entrance, calculates a travel distance according to a vehicle speed and a time T up to a branch, and continues providing guidance on the current position up to the branch. After passing the branch, the navigation device suspends guidance, calculates a distance La between the branch and a tunnel exit, which is shorter, and when GPS radio waves are not received even after a movement distance from the branch exceeds distance La, after passing the branch, determines a road whose distance is longer as the road being traveled, and provides guidance on the current position.
    Type: Application
    Filed: March 15, 2013
    Publication date: May 28, 2015
    Applicant: AISIN AW CO., LTD.
    Inventors: Hiroyoshi Masuda, Yohei Ando, Yusuke Oohashi
  • Patent number: 8769237
    Abstract: A map updating system includes: an update processing unit for performing update processing by reading data required in the update processing from a cache area of a memory when the data are stored in the cache area and from a map database when the data are not stored in the cache area; a cache storage unit for storing the data read by the update processing unit in the cache area; a processing memory capacity determination unit for determining a processing memory capacity, which is a capacity of the memory required as an update processing area, on the basis of the content of map data to be subjected to the update processing; and a cache capacity determination unit for determining a cache capacity, which is a capacity of the memory allocated to the cache area, on the basis of the processing memory capacity.
    Type: Grant
    Filed: February 26, 2009
    Date of Patent: July 1, 2014
    Assignee: Aisin Aw Co., Ltd.
    Inventors: Mitsuhiro Nimura, Tatsumi Sakamoto, Toyoji Hiyokawa, Hiroyoshi Masuda, Tomofumi Shibata, Kazuyuki Hirakawa, Atsushi Yamazaki, Masahiro Hyakusawa, Masahiro Takahashi
  • Patent number: 8683606
    Abstract: At the first data access by a navigation unit to a recording medium that records updating right information necessary for updating map data in a rewritable data area in which map data are recorded, the updating right information is read from the data area and is deleted from the data area, and a map updating due date created based on the read updating right information is written in a memory of the navigation unit together with the medium identification information read from a non-rewritable management area.
    Type: Grant
    Filed: January 7, 2011
    Date of Patent: March 25, 2014
    Assignee: Aisin AW Co., Ltd.
    Inventors: Hiroyoshi Masuda, Kensuke Takeuchi, Norihisa Fujikawa, Koichi Iwatsuki, Yoshihiro Tanabe
  • Publication number: 20120291134
    Abstract: At the first data access by a navigation unit to a recording medium that records updating right information necessary for updating map data in a rewritable data area in which map data are recorded, the updating right information is read from the data area and is deleted from the data area, and a map updating due date created based on the read updating right information is written in a memory of the navigation unit together with the medium identification information read from a non-rewritable management area.
    Type: Application
    Filed: January 7, 2011
    Publication date: November 15, 2012
    Applicant: AISIN AW CO., LTD.
    Inventors: Hiroyoshi Masuda, Kensuke Takeuchi, Norihisa Fujikawa, Koichi Iwatsuki, Yoshihiro Tanabe
  • Patent number: 8261083
    Abstract: A CPU of a navigation apparatus stores public keys to which priorities are set and which are published by an information distribution center in a public key storage section. The CPU of the navigation apparatus extracts an electronic signature of distribution data which is distributed from the information distribution center and verifies the electronic signature by using only ‘valid’ public keys among the public keys in order of the priorities. The CPU of the navigation apparatus determines that the distribution data is valid information which is distributed from the information distribution center when the electronic signature passes verification.
    Type: Grant
    Filed: January 15, 2008
    Date of Patent: September 4, 2012
    Assignees: Aisin AW Co., Ltd., Toyota Jidosha Kabushiki Kaisha
    Inventors: Norihiro Nakamura, Isao Moribe, Hiroyoshi Masuda, Toru Sakai, Yoriyuki Nagata, Hironobu Sugimoto, Tomoki Kodan
  • Publication number: 20110270798
    Abstract: When an update instruction to update “A” navigation map information and “B” navigation map information is inputted, a CPU initializes the storage area having stored therein no map information currently in use out of the two storage areas. The CPU then reads, from a CD-ROM, the latest version of the “A” navigation map information or the “B” navigation map information that corresponds to the map information currently in use, and stores it in the initialized storage area. The CPU then updates management information, starts use of the newly stored map information, initializes the storage area having stored therein the map information whose use is stopped out of the two storage areas, reads, from the CD-ROM, the latest version of the “A” navigation map information or the “B” navigation map information not currently in use, and stores it in the initialized storage area.
    Type: Application
    Filed: February 9, 2010
    Publication date: November 3, 2011
    Applicants: AISIN AW CO., LTD., DENSO CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hikaru Nagasaka, Hiroyoshi Masuda, Tetsuo Kumagai, Tomoki Kodan, Kazunori Watanabe, Yasutaka Atarashi, Takayuki Watanabe
  • Publication number: 20110153661
    Abstract: A navigation device that is provided with reference databases that include search databases that are referenced when the navigation device performs a location search for a location on a map, that accepts provided update data, and that performs update processing for the reference databases is provided with a priority processing unit that, in a case where a command to perform the location search is input during the update processing for the reference databases, gives priority to performing the update processing for location data that are stored in the search databases, as well as with a search unit that, after the update processing for the location data is completed by the priority processing unit, is enabled to perform the location search using the updated location data.
    Type: Application
    Filed: May 26, 2009
    Publication date: June 23, 2011
    Applicant: AISIN AW CO., LTD.
    Inventors: Takamitsu Sakai, Masaru Ohashi, Seiji Takahata, Tomofumi Shibata, Mitsuhiro Naito, Tetsuo Kumagai, Toru Sakai, Hiroyoshi Masuda
  • Publication number: 20110125962
    Abstract: A map updating system includes: an update processing unit for performing update processing by reading data required in the update processing from a cache area of a memory when the data are stored in the cache area and from a map database when the data are not stored in the cache area; a cache storage unit for storing the data read by the update processing unit in the cache area; a processing memory capacity determination unit for determining a processing memory capacity, which is a capacity of the memory required as an update processing area, on the basis of the content of map data to be subjected to the update processing; and a cache capacity determination unit for determining a cache capacity, which is a capacity of the memory allocated to the cache area, on the basis of the processing memory capacity.
    Type: Application
    Filed: February 26, 2009
    Publication date: May 26, 2011
    Applicant: AISIN AW CO., LTD.
    Inventors: Mitsuhiro Nimura, Tatsumi Sakamoto, Toyoji Hiyokawa, Hiroyoshi Masuda, Tomofumi Shibata, Kazuyuki Hirakawa, Atsushi Yamazaki, Masahiro Hyakusawa, Masahiro Takahashi
  • Publication number: 20100070772
    Abstract: A CPU of a navigation apparatus stores public keys to which priorities are set and which are published by an information distribution center in a public key storage section. The CPU of the navigation apparatus extracts an electronic signature of distribution data which is distributed from the information distribution center and verifies the electronic signature by using only ‘valid’ public keys among the public keys in order of the priorities. The CPU of the navigation apparatus determines that the distribution data is valid information which is distributed from the information distribution center when the electronic signature passes verification.
    Type: Application
    Filed: January 15, 2008
    Publication date: March 18, 2010
    Applicant: AISIN AW CO., LTD
    Inventors: Norihiro Nakamura, Isao Moribe, Hiroyoshi Masuda, Toru Sakai, Yoriyuki Nagata, Hironobu Sugimoto, Tomoki Kodan
  • Patent number: 7076364
    Abstract: A road map display device including a road map information memory for memorizing road map data on a two-dimensional coordinate and a detection device for detecting a present position and a travel direction of an automotive vehicle, wherein the two-dimensional coordinate of the road map data is read out from the information memory in accordance with the present position and travel direction of the vehicle detected by the detection device and displayed in the form of a plane view on a screen of a display unit.
    Type: Grant
    Filed: January 9, 2004
    Date of Patent: July 11, 2006
    Assignee: Aisin AW Co., LTD
    Inventors: Nobuhide Kuroda, Kunihiro Yamada, Mitsuhiro Nimura, Hiroyoshi Masuda, Hidenori Nagasaka
  • Patent number: 7031831
    Abstract: A vehicle navigation apparatus for searching for a route from an inputted place of departure to an inputted destination and performing guide, the apparatus comprising: a registration unit for associating a traveled route with a place of departure and a destination and thus registering the traveled route; a judgment unit for judging whether the same place of departure and destination as a place of departure and a destination of a registered route are inputted or not; a route search unit for reading out information of the registered route when it is judged by the judgment unit that the same place of departure and destination are inputted, and lowering weighting in searching for the route so as to search for the route; and a control unit for performing guide of the route found by the search by the route search unit. Thus, route guide preferred by a user can be performed.
    Type: Grant
    Filed: November 5, 2002
    Date of Patent: April 18, 2006
    Assignee: Aisin Aw Co., Ltd.
    Inventors: Takanori Kaji, Mitsuhiro Nimura, Kunihiro Yamada, Hiroyoshi Masuda
  • Patent number: 6950100
    Abstract: A map display device using an input unit for inputting a display scale, a memory for storing polygon map data, a drawing processing control unit for drawing a polygon map by loading polygon map data from the memory and a display unit for displaying an output from the drawing processing control unit, wherein the drawing processing control unit is provided with a function for determining a unit of a polygon map that should be drawn and drawing a polygon map of the determined unit.
    Type: Grant
    Filed: March 19, 2001
    Date of Patent: September 27, 2005
    Assignee: Aisin AW Co., Ltd.
    Inventors: Kunihiro Yamada, Takanori Kaji, Yumi Shibata, Hiroyoshi Masuda
  • Patent number: 6944539
    Abstract: An information display system including an input device that inputs a scheduled event, a schedule storage in which the schedule is stored, a display device that displays a map, a memory that stores map information and the scheduled event, and a controller that displays a schedule reminder message on the map at a specified time before the scheduled event is to occur.
    Type: Grant
    Filed: October 25, 2002
    Date of Patent: September 13, 2005
    Assignee: Aisin AW Co., Ltd.
    Inventors: Kunihiro Yamada, Yumii Shibata, Hiroyoshi Masuda, Kiyonobu Yamazaki
  • Patent number: 6904362
    Abstract: An information center generates packets of route guidance information, each corresponding to a prescribed road length of a recommended route. The information center may generate major guide point information and guidance information and transmit both to a vehicular apparatus. The vehicular apparatus provides guidance only for major guide points based on the received major guide point information if it cannot receive the guidance information. According to another aspect of the invention, if the end of a route segment which was the subject of the preceding route guidance information is on an expressway or toll road, guidance information for a preliminary route from that end to an escape position ahead on the expressway or toll road is first transmitted and then information for a remaining route, that is a segment of the recommended route having the prescribed road length minus the preliminary route, is then transmitted.
    Type: Grant
    Filed: August 8, 2002
    Date of Patent: June 7, 2005
    Assignee: Aisin Aw Co., Ltd.
    Inventors: Hideki Nakashima, Hiroyoshi Masuda, Akira Ishida, Yoichi Hayama
  • Publication number: 20040143389
    Abstract: A road map display device including a road map information memory for memorizing road map data on a two-dimensional coordinate and a detection device for detecting a present position and a travel direction of an automotive vehicle, wherein the two-dimensional coordinate of the road map data is read out from the information memory in accordance with the present position and travel direction of the vehicle detected by the detection device and displayed in the form of a plane view on a screen of a display unit.
    Type: Application
    Filed: January 9, 2004
    Publication date: July 22, 2004
    Applicant: AISIN AW CO., LTD.
    Inventors: Nobuhide Kuroda, Kunihiro Yamada, Mitsuhiro Nimura, Hiroyoshi Masuda, Hidenori Nagasaka
  • Publication number: 20040102899
    Abstract: A vehicle navigation apparatus for searching for a route from an inputted place of departure to an inputted destination and performing guide, the apparatus comprising: a registration unit for associating a traveled route with a place of departure and a destination and thus registering the traveled route; a judgment unit for judging whether the same place of departure and destination as a place of departure and a destination of a registered route are inputted or not; a route search unit for reading out information of the registered route when it is judged by the judgment unit that the same place of departure and destination are inputted, and lowering weighting in searching for the route so as to search for the route; and a control unit for performing guide of the route found by the search by the route search unit. Thus, route guide preferred by a user can be performed.
    Type: Application
    Filed: September 30, 2003
    Publication date: May 27, 2004
    Inventors: Takanori Kaji, Mitsuhiro Nimura, Kunihiro Yamada, Hiroyoshi Masuda
  • Publication number: 20040054468
    Abstract: An information display system including an input device that inputs a scheduled event, a schedule storage in which the schedule is stored, a display device that displays a map, a memory that stores map information and the scheduled event, and a controller that displays a schedule reminder message on the map at a specified time before the scheduled event is to occur.
    Type: Application
    Filed: August 12, 2003
    Publication date: March 18, 2004
    Inventors: Kunihiro Yamada, yumii Shibata, Hiroyoshi Masuda, Kiyonobu Yamazaki