Geographic information transceiving system and methood thereof

• US 20080095096A1
• Filed: 09/14/2004
• Published: 04/24/2008
• Est. Priority Date: 12/27/2003
• Status: Active Grant

• Current Assignee: Carrum Technologies, LLC (Pratima Instruments, LLC)
• Original Assignee: Electronics and Telecommunications Research Institute
• Inventors: Lee, Hyun, Lee, Soo-In, Ahn, Chung-Hyun, Kim, Geon, Cho, Sammo, Lee, Gwang-Soon, Hahm, Young-Kwon
• Granted Patent: US 7,848,878 B2
• Time in Patent Office: Days
• US Class Current: 370/328
• CPC Class Codes: G01C 21/26 specially adapted for navigation in a road network
• CPC Class Codes: G08G 1/096775 where the origin of the information is a central station
• CPC Class Codes: H04H 20/55 for traffic information
• CPC Class Codes: H04H 60/70 using geographical information, e.g. maps, charts or atlases
• CPC Class Codes: H04N 21/2351 involving encryption of additional data arrangements using cryptography for the use of broadcast information or broadcast-related information H04H60/23
• CPC Class Codes: H04N 21/2356 by altering the spatial resolution
• CPC Class Codes: H04N 21/2358 for generating different versions, e.g. for different recipient devices
• CPC Class Codes: H04N 21/23617 by inserting additional data into a data carousel, e.g. inserting software modules into a DVB carousel arrangements for broadcast or for distribution of identical information repeatedly in broadcast distribution systems H04H20/16
• CPC Class Codes: H04N 21/2402 Monitoring of the downstream path of the transmission network, e.g. bandwidth available traffic monitoring in data switching networks H04L43/00; monitoring data switching networks utilization H04L43/0876
• CPC Class Codes: H04N 21/25841 involving the geographical location of the client retrieval from the Internet by querying based on geographical locations G06F16/9537; arrangements for identifying locations of receiving stations in broadcast systems H04H60/51; location of the user terminal in data switching networks H04L67/52; services making use of the location of users or terminals in wireless networks H04W4/02; locating users or terminals in wireless networks H04W64/00
• CPC Class Codes: H04N 21/2662 Controlling the complexity of the video stream, e.g. by scaling the resolution or bitrate of the video stream based on the client capabilities
• CPC Class Codes: H04N 21/2665 Gathering content from different sources, e.g. Internet and satellite
• CPC Class Codes: H04N 21/41422 located in transportation means, e.g. personal vehicle arrangements specially adapted for transportation systems in broadcast systems H04H20/62
• CPC Class Codes: H04N 21/4349 by extracting from data carousels, e.g. extraction of software modules from a DVB carousel
• CPC Class Codes: H04N 21/4353 involving decryption of additional data arrangements using cryptography for the use of broadcast information or broadcast-related information H04H60/23
• CPC Class Codes: H04N 21/4382 Demodulation or channel decoding, e.g. QPSK demodulation analog front ends or means for connecting modulators, demodulators or transceivers to a transmission line H04L27/0002
• CPC Class Codes: H04N 21/4586 Content update operation triggered locally, e.g. by comparing the version of software modules in a DVB carousel to the version stored locally deployment, distribution, installation, update of software G06F8/65; error detection or correction of the data by redundancy during software upgrading G06F11/1433; arrangements for updating broadcast information or broadcast-related information H04H60/25
• CPC Class Codes: H04N 7/165 Centralised control of user terminal subsequent to an upstream request signal H04N7/17345; Registering at central by two-way working H04N7/17309

Abstract

Provided is a geographic information transceiving system and method using a digital broadcasting network. The system and method segments new geographic and map data of a region, on which a geographic information service is provided, makes data segment files of different sizes, and multiplexes and transmits the files. A geographic information transmitting system includes: a geographic information collector for receiving real-time geographic information and real-time traffic information; a geographic information processor for extracting/processing local geographic information and local traffic information from the geographic information collecting means and outputting whole area information, geographic information and traffic information for a plurality of resolution levels; a digital broadcasting unit for converting and transmitting the geographic information/traffic information data in conformity to digital broadcast signals; a geographic information multiplexer for multiplexing the geographic information/traffic information data; and a transmitter for transmitting the multiplexed geographic information/traffic information data to a corresponding region.

Claims

1. A geographic information transmitting system using a digital broadcasting network, comprising:

a geographic information collecting means for receiving real-time geographic information and real-time traffic information from a central/local geographic information collecting network;

a geographic information processing means for extracting/processing local geographic information and local traffic information from the geographic information collecting means and outputting whole area information, and geographic information/traffic information for a plurality of resolution levels;

a digital broadcasting means for converting and transmitting the geographic information/traffic information from the geographic information processing means in conformity to digital broadcast signals;

a geographic information multiplexing means for multiplexing the geographic information/traffic information transmitted from the digital broadcasting means with local geographic information data; and

a transmitting means for transmitting the multiplexed geographic information/traffic information data to a corresponding region.

2. The transmitting system as recited in claim 1, wherein the digital broadcasting means receives the geographic information from the geographic information processing means and reestablishes a multiplexing structure of an existing geographic information broadcasting channel to transmit the geographic information to the transmitting means based on a predetermined standard for map segmentation.

3. The transmitting system as recited in claim 2, wherein the digital broadcasting means multiplexes the map data of a plurality of sizes, which are transmitted from the geographic information processing means, with the digital broadcast signals based on a map selection standard and a data retransmission period, which is determined according to a frequency of data change, in consideration of broadcasting conditions and the size of the broadcasting data channel and transmits the multiplexed map data to the transmitting means.

4. The transmitting system as recited in claim 1, wherein the geographic information processing means processes update data as soon as the update data are received and adds the update data to information transmitted to each region by providing a plurality of map data versions which have a different file size based on significance of the geographic information and a level of resolution.

5. A geographic information receiving system using a digital broadcasting network, comprising:

a synchronizing means for selecting/synchronizing signals transmitted from each transmitter;

a demodulating means for demodulating the synchronized signals;

a demultiplexing means for demultiplexing the demodulated signals;

a data decoding means for decoding the demultiplexed signals;

a storing means for storing the decoded data;

a map data managing means for managing the data stored in the storing means and displaying a requested part of a map; and

a navigation/display means for displaying map data and perform navigation under the control of the map data managing means.

6. The receiving system as recited in claim 5, further comprising:

an audio/video controlling means for controlling and outputting audio/video data among the signals demultiplexed in the demultiplexing means.

7. The receiving system as recited in claim 5, wherein the map data managing means combines the map data stored in the storing means at boundary points so that there is no data vacancy, and displays a requested part of the map on the navigation/display means.

8. The receiving system as recited in claim 5, wherein the storing means has a sufficient capacity to store map data of at least three regions so as to receive and store map data for all regions that involve in boundary of map segments and stores map segment numbers and location coordinates of a particular point in advance.

9. The receiving system as recited in claim 5, wherein once the storing means receives map data, the storing means stores the map data until the map data exceed a predetermined capacity level and, if a vehicle moves to a new region, the storing means stores map data for the new region in the remainder of the storing means;

and if the map data exceed the predetermined capacity level, the storing means deletes the stored map data from the data with the lowest usage frequency.

10. A method for transmitting geographic information by using a digital broadcasting network, comprising the steps of:

a) collecting real-time geographic information and real-time traffic information from a central/local geographic information collecting network;

b)extracting/processing local geographic information and local traffic information from the collected geographic information/traffic information and outputting whole area information and geographic information/traffic information for a plurality of resolution levels;

c) converting and transmitting the outputted geographic information/traffic information data outputted from the step b) in conformity to digital broadcast signals;

d) multiplexing the geographic information/traffic information data transmitted in the step c) with local geographic information data;

e) performing encryption during the multiplexing in the step d) so that whether to allow a user to use the information be determined based on whether the user is a subscriber and what subscriber class the user belongs to; and

f) transmitting the multiplexed geographic information/traffic information data to a corresponding region.

11. A method for receiving geographic information by using a digital broadcasting network, comprising the steps of:

a) selecting/synchronizing signals transmitted from each transmitter;

b) demodulating the synchronized signals;

c) demultiplexing the demodulated signals;

d) decoding the demultiplexed signals;

e) performing decryption during the decoding in the step d) by determining whether to allow a user to use the geographic information based on whether the user is a subscriber and what subscriber class the user belongs to;

f) storing the decrypted data;

g) managing the data stored in the step f) by using a map data managing unit and displaying a requested part of a map; and

h) displaying map data and perform navigation under the control of the map data managing unit.