Information transmission method and device

• US 6,499,051 B1
• Filed: 02/08/1999
• Issued: 12/24/2002
• Est. Priority Date: 08/28/1996
• Status: Expired due to Fees

• Current Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Original Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Inventors: Kanemitsu, Hiroyuki
• Primary Examiner(s): Le, N.
• Assistant Examiner(s): Benson, Walter
• Application Number:
  US09/246,151
• Time in Patent Office: 1,415 Days
• Field of Search: 455/414, 701/203, 709/200, 709/202, 709/206
• US Class Current: 709/203
• CPC Class Codes: G01C 21/3679 Retrieval, searching and output of POI information, e.g. hotels, restaurants, shops, filling stations, parking facilities G01C21/3611 takes precedence
• CPC Class Codes: H04L 67/01 Protocols
• CPC Class Codes: H04L 67/04 specially adapted for terminals or networks with limited capabilities; specially adapted for terminal portability
• CPC Class Codes: H04L 67/12 specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
• CPC Class Codes: H04L 67/61 taking into account QoS or priority requirements
• CPC Class Codes: H04L 69/329 in the application layer [OSI layer 7]
• CPC Class Codes: H04L 9/40 Network security protocols

Abstract

An information transmission method and device for preventing a client from getting an impression that they are being kept waiting for a response, even when the go response contains a large amount of data. A search request is made from an information communication system of a vehicle, an information providing center receives the request, and searches a database to obtain a search result. If the search result contains data of more than one data type such as texts and images, a data group is formed for each data type and the amount of data for each data group is calculated. Transmission order is determined by arranging the data groups in an ascending order of data amount from smallest to largest. The transmission order is further determined for each data group by arranging data in an ascending order from smallest to largest, and data is transmitted to the vehicle in this order.

Claims

1. An information transmission method for a server to transmit to a client an information transmission, comprising:

receiving a request from the client;

generating a response to the request;

identifying types of data in the response, the types of data include at least a data description and a data length;

obtaining the amount of transmitted data for each data type in the response;

controlling the order of data transmission based on the obtained amount of transmitted data for each data type; and

transmitting the response in the data transmission order determined by the controlling of the order of data transmission.

3. The information transmission method according to claim 1 or 2, wherein the controlling the order of data transmission includes sequentially arranging data in an ascending order of data amount so that the data type having the smallest data amount is put first.

4. The information transmission method according to claim 1 or 2, wherein controlling the order of data transmission includes sequentially arranging data of a type in an ascending order of data amount so that data with the smallest amount is put first among the data of the type when a plurality of data items are included in the data type.

5. The information transmission method according to claim 1 or 2, further comprising:

dividing search results into units when a plurality of search results are included in the response,

wherein controlling the order of data transmission includes determining the data transmission order for each unit.

6. The information transmission method according to claim 1 or 2, wherein controlling the order of data transmission includes dividing search operations into groups based on databases to control the order of data transmission for each group when it is determined that more than one database should be searched to obtain information for the response.

2. An information transmission method for an information providing center to transmit to a vehicle an information transmission, comprising:

receiving a request from the vehicle;

generating a response to the request;

identifying the type of data in the response;

obtaining the amount of transmitted data for each data type in the response, the types of data include at least a data description and a data length;

obtaining the amount of transmitted data for each data type in the response;

controlling the order of data transmission based on the obtained amount of transmitted data for each data type; and

transmitting the response in the data transmission order determined by the controlling of the order of data transmission.

7. An information transmission device used by a server to transmit to a client an information transmission, comprising:

a device configured to receive a request from the client;

a device configured to generate a response to the request;

a device configured to identify the types of data in the response, the types of data include at least a data description and a data length;

a device configured to obtain the amount of transmitted data for each of the data types in the response;

a controller configured to control the order of data transmission based on the obtained amount of transmitted data for each data type; and

a transmitter configured to transmit the response in the data transmission order determined by said controller.

9. The information transmission device according to claim 7 or 8, wherein said controller sequentially arranges data in an ascending order of data amount so that the data type having the smallest data amount is put first.

10. The information transmission device according to claim 7 or 8, wherein said controller sequentially arranges data of a type in an ascending order of data amount so that data with the smallest amount is put first in order among the data of the type when a plurality of data items are included in the data type.

11. The information transmission device according to claim 7 or 8, further comprising:

a divider configured to divide search results into units when more than one search result is included in the response,

wherein said controller determines the data transmission order for each unit.

12. The information transmission device according to claim 7 or 8, wherein said controller divides search operations into groups based on databases to control the data transmission order for each group when it is determined that more than one database should be searched to provide a response.

8. An information transmission device used by an information providing center to transmit to a client an information transmission, comprising:

a device configured to receive a request from a client;

a device configured to generate a response to the request;

a device configured to identify the types of data in the response, the types of data include at least a data description and a data length;

a device configured to obtain the amount of transmitted data for each of the data types in the response;

a controller configured to control the order of data transmission based on the obtained amount of transmitted data for each data type; and

a transmitter configured to transmit the response in the data transmission order determined by said controller.