Inventors list

Assignees list

Classification tree browser

Top 100 Inventors

Top 100 Assignees


Akinori Asahara

Akinori Asahara, Tachikawa JP

Patent application numberDescriptionPublished
20100185446SPEECH RECOGNITION SYSTEM AND DATA UPDATING METHOD - It is provided a speech recognition system installed in a terminal coupled to a server via a network. The terminal holds map data including a landmark. The speech recognition system manages recognition data including a word corresponding to a name of the landmark, and sends update area information and updated time to the server. The server generates, when recognition data of the area of the update area information sent from the terminal has been changed after updated time, difference data between latest recognition data and recognition data of the update area information at a time of the updated time, and sends the generated difference data and map data of the update area information to the terminal. The terminal updates the map data based on the map data sent from the server. The speech recognition system updates the recognition data managed by the terminal based on the difference data.07-22-2010
20110029554METHOD AND COMPUTING SYSTEM FOR DISTRIBUTED STREAM DATA PROCESSING USING PLURAL OF COMPUTERS - In executing query distributed processing in a computer system having a plurality of computers, a query and a sliding window are inherited between different computers. If a tuple having a new principal key value is detected when a query is to be executed, a relevant individual query and a relevant sliding window are inherited between computers, and further a sliding window of a relevant common query is inherited between computers.02-03-2011

Akinori Asahara, Kokubunji JP

Patent application numberDescriptionPublished
20090019057Terminal and data distribution system - Disclosed herewith is a terminal for receiving data distributed from a host computer. The terminal includes a database for storing data distributed from the host computer and a schedule manager for managing the schedule of the terminal. Upon receiving an update request for the data stored in the database, the terminal extracts a time band in which the usage frequency of the terminal is kept low as an updatable time through the schedule manager and sends an update request to the host computer in response to the received request. The terminal calculates a processing time required to update object data, as well as a value denoting the usefulness of the object data according to the update information received from the host computer and including the object data, then decides a processing order for the object data according to the processing time and the usefulness value calculated respectively for the object data, thereby updating the data stored in the database according to the decided processing order. Useful data is updated preferentially in the time band in which the usage frequency of the terminal is low.01-15-2009
20090019095MAP DATA DISTRIBUTION SYSTEM AND MAP DATA UPDATING METHOD - A map data distribution system includes a server which distributes map data and a mobile terminal which receives the map data. The server stores, for each area, the difference data between pieces of map data obtained before and after updated, and sends the difference data of map data of an area requested by the mobile terminal to the mobile terminal. The mobile terminal includes a database for storing map data and an updated-data store part for storing updated map data, generates updated data by using the received difference data, stores the updated data in the updated-data store part and then in the database. To fetch map data while the updated data is being stored from the updated-data store part to the database, when the map data to be fetched is stored in the updated-data store part, the mobile terminal fetches the map data from the updated-data store part.01-15-2009
20090171976Map Data Delivering Device, Communication Terminal, and Map Delivering Method - There is disclosed a map data delivering system for providing consistent road network information from supplement map information and map update information. The map data delivering system includes a navigation terminal and a map distribution server. The map distribution server includes a management data storage unit which stores an update element representing differential update data representing a difference of the map data, and update element management data containing an update element ID for identifying the update element, an update date before the updating of the map data, and a dependent update element ID for storing dependency on the updating of the map data; an update management data selector unit which selects the update element management data having the dependent update element ID among the update element management data having the located area overlapped with the map area of the map distribution request from the navigation terminal and the corresponding update element management data; and a network I/F unit which performs communication with the navigation terminal.07-02-2009

Patent applications by Akinori Asahara, Kokubunji JP

Akinori Asahara, Tokyo JP

Patent application numberDescriptionPublished
20090157295Navigation Apparatus - A navigation apparatus comprises a route setting unit that sets a route, a route characteristic point setting unit that sets a plurality of route characteristic points to the route set by the route setting unit, a priority setting unit that sets priority to each of the route characteristic points set by the route characteristic point setting unit, a selecting unit that selects any of the route characteristic points based upon the priority set by the priority setting unit, and a display control unit that displays the route and the route characteristic point selected by the selecting unit on a display monitor.06-18-2009
20090157296Navigation Apparatus - A navigation apparatus comprises a map display control unit that displays a map on a display monitor, a voice information outputting unit that outputs voice information related to traveling of a vehicle, and a highlighting unit that highlights a part of the map that corresponds to the voice information in synchronization with output of the voice information by the voice information outputting unit.06-18-2009

Akinori Asahara, Kokubunji-Shi JP

Patent application numberDescriptionPublished
20080275631On-Vehicle Map Display Apparatus, Map Display Method - This on-vehicle map display apparatus comprises a map scale setting unit that sets a map scale, a summary map generation unit that generates a summary map by abbreviating road shapes if a map scale that is less than a predetermined scale is set by the map scale setting unit, a summary map display control unit that displays the summary map generated by the summary map generation unit upon a display monitor, a congestion information acquisition unit that acquires congestion information, and a congestion information display control unit that displays the congestion information acquired by the congestion information acquisition unit as superimposed upon the summary map displayed upon the display monitor by the summary map display control unit.11-06-2008