WO1998009222A1 - Information transmission method and information transmitter - Google Patents
Information transmission method and information transmitter Download PDFInfo
- Publication number
- WO1998009222A1 WO1998009222A1 PCT/JP1997/002730 JP9702730W WO9809222A1 WO 1998009222 A1 WO1998009222 A1 WO 1998009222A1 JP 9702730 W JP9702730 W JP 9702730W WO 9809222 A1 WO9809222 A1 WO 9809222A1
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- WO
- WIPO (PCT)
- Prior art keywords
- data
- information
- transmission
- type
- answer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
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Classifications
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/26—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
- G01C21/34—Route searching; Route guidance
- G01C21/36—Input/output arrangements for on-board computers
- G01C21/3679—Retrieval, searching and output of POI information, e.g. hotels, restaurants, shops, filling stations, parking facilities
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/04—Protocols specially adapted for terminals or networks with limited capabilities; specially adapted for terminal portability
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/60—Scheduling or organising the servicing of application requests, e.g. requests for application data transmissions using the analysis and optimisation of the required network resources
- H04L67/61—Scheduling or organising the servicing of application requests, e.g. requests for application data transmissions using the analysis and optimisation of the required network resources taking into account QoS or priority requirements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/40—Network security protocols
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/30—Definitions, standards or architectural aspects of layered protocol stacks
- H04L69/32—Architecture of open systems interconnection [OSI] 7-layer type protocol stacks, e.g. the interfaces between the data link level and the physical level
- H04L69/322—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions
- H04L69/329—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions in the application layer [OSI layer 7]
Definitions
- the present invention relates to an information transmission method and an apparatus for transmitting a search result (information) including a plurality of data types and responding to a transmission request from a client.
- an information providing system comprising a navigation system mounted on a vehicle and an information providing center for providing information to a vehicle
- the information providing center owns when receiving a request for transmission of some information from the vehicle. Searches the database and sends answers to requests.
- navigation systems have added not only information related to map information and route guidance but also information such as news and advertising. Can be handled.
- the answer may be, for example, a search request such as "road information around the destination", which can be answered with one piece of information per transmission request.
- Some requests require multiple replies to a single transmission request.
- the information provision center is usually constructed of a server system equipped with various databases for information provision, and responds to various information transmission requests from clients. However, it is possible that the requested information may not be possessed, so an external database system is accessed to obtain and respond to the information.
- the content of the search request from the vehicle to the information providing center includes a detailed map up to the destination, news, and information on the facility (location, service content, etc.) to be used.
- the information providing center receives, for example, a search request for "restaurant information in a certain area", it searches for the corresponding restaurant information from the database, and sends out the search results sequentially to reply.
- Information on restaurants generally includes the address of the restaurant, phone number and introductory article, directions to the restaurant, photos showing the exterior of the restaurant, etc. Although it is considered rare, this information is supplied from the information provision center in a mixture of character data, image data, and voice data.
- the data sent from the information provision center 1 can be displayed sequentially on the display or the content of the information can be confirmed by voice output.
- [3 ⁇ 418 is a schematic diagram of a display example of restaurant information Is shown.
- the information providing center simply sends the search results in order regardless of the data amount of each information included in the answer. Assuming that the information provision center first sends a large amount of data to the vehicle, it is necessary to wait for a while until the data is displayed on the display on the vehicle. In other words, the client (for example, a mobile terminal user such as a vehicle occupant) has to wait for a long time before it is displayed, so there is a sense of waiting. If ghost image data is sent first, the sense of waiting until the answer is obtained becomes extremely strong, and there is a possibility that the illusion of an abnormal communication line may occur.
- the client for example, a mobile terminal user such as a vehicle occupant
- the present invention has been made in order to solve the above problems, and its purpose is to provide an information transmission method and a data transmission method for minimizing a wait ⁇ 'even when a large amount of data is included in a response. To provide an information transmission equipment.
- a first aspect of the present invention relates to an information transmission method in which a server sends a response in response to an information transmission request from a client, wherein a type for obtaining a type of each data included in the response is provided.
- Data transmission step for determining the amount of transmission data for each type of data included in the response, and a transmission order control step for controlling the data transmission order based on the determined transmission data amount for each type of data.
- a classification step for obtaining a type of each data included in the response, and a data included in the response
- Data transmission step for calculating the transmission data amount for each type of data, and control of the data transmission order based on the calculated transmission data amount for each data type.
- a third invention is characterized in that, in the first or second invention, the transmission order control step sequentially transmits the data types in a small data amount.
- the transmission order control step includes, when a plurality of data are included in the data type, sequentially transmitting the data with a smaller data amount.
- a fifth invention according to the first or second invention further comprising a unit division step of dividing each search result into units when the answer includes a plurality of search results, wherein the transmission order control step comprises: The feature is to determine the data transmission order for each.
- the data types are sorted in the order of small data amount, and a plurality of data are sorted for each data type.
- the data is rearranged in the order of small data amount, or in units of unit, the data is rearranged in the order of small data amount. If you take it to the recipient, you can receive the information in a shorter time after you make a search request, so you do not have to wait.
- the transmission order control step includes, if it is determined that there are a plurality of databases to be searched for an answer, grouping is performed for each database.
- the feature is to control the data transmission order every time. As described above, since the search can be performed for each database, overhead such as switching of the database is reduced, and the search time for a search request can be shortened. Therefore, the information receiving side can receive the information in a shorter time after the search request, so that the user does not have to wait.
- a vehicle having a relatively narrow living space and waiting for information to be sent while moving to a destination or the like is compared with a general server system. It is thought that the waiting time for information is relatively long, Avoiding the feeling of waiting is very useful for occupants in the passenger compartment:
- the information transmitting apparatus is characterized in that it has means for realizing the information transmitting method according to each of the above-mentioned inventions.
- FIG. 1 is a schematic overall configuration diagram showing an embodiment of a client server type information providing system employing an information communication method according to the present invention.
- FIG. 2 is a block diagram of each block of an information providing center and a vehicle constituting an information providing system in the first embodiment.
- FIG. 3 is a flowchart showing a procedure of the information communication method according to the first embodiment.
- FIG. 4 is a flowchart showing the procedure of the information communication method in the second embodiment:
- FIG. 5 is a diagram showing a configuration example of various data constituting a search result (information) in the second embodiment.
- FIG. 6 is a flowchart showing a procedure of an information communication method according to the third embodiment.
- FIG. 7 is a flowchart showing a procedure of an information communication method according to the fourth embodiment:
- FIG. 8 is a schematic diagram showing an example of display contents of information acquired on the vehicle side.
- FIG. 1 is a schematic overall configuration diagram showing an embodiment of a client-server type information providing system employing an information communication method according to the present invention.
- FIG. 2 is a block diagram of FIG.
- Information communication system on board 2 Is a server system that is equivalent to the navigation system described above and can additionally acquire information such as news in addition to map information and route guidance information.
- the information communication system 2 includes an operation unit 12 for manually inputting details of a search request to the information providing center 1, a display unit 14 for displaying information supplied from the information providing center 1, and an information It comprises a communication control section 16 for performing information communication with the providing center 1 and a processing section 18 for performing control processing in the entire information communication system.
- the touch panel type display forming the display unit 14 also serves as the operation unit 12.
- the information providing center 1 is a client system that sends a response in response to an information transmission request from the information communication system 2.
- the information providing center 1 includes a database 22 for storing information, a search unit 24 for performing a search process on the database 22 based on the received search request, and an information communication with the information communication system 2.
- the search unit 24 is composed of an ig control unit 26 that performs a search and a processing unit 28 that performs control processing in the entire information providing center.
- the search unit 24 owns information requested by the information providing center 1. If not, access the external database 222 of the other database system 200 to obtain necessary information.
- a characteristic of the present embodiment is that, when a plurality of data types are included in a response, the data is transmitted in the order of smaller data amount.
- the information providing center 1 accepts the search request (step 101), and performs a search process to the database 22 to respond to the request. And obtain the corresponding information (step 102). If there is no necessary information in the database 22, the search unit 24 shifts to the search process to another database 222, but this search process to the outside is a feature of the present invention. Since it is not a sign, description is omitted unless otherwise noted. Here, it is assumed that as a result of the search processing by the search unit 24, only one search result is obtained as an answer.
- this One search result includes data of multiple data types, such as map information representing image data, location represented by character data, introduction, etc., even for information on one restaurant, such as information on restaurants. In some cases. Therefore, before it sends the information to be responded to the vehicle side, in this embodiment, to determine the type of each data initially contained in the reply (Step 1 0 3) 0 ⁇ to contain multiple data types If the data type has been set (step 104), the data amount is calculated for each data type (step 105). When the information on restaurants is composed of character data and image data, the data amount of each is calculated. Then, in the present embodiment, data is arranged in ascending order of data amount (step 106) and sequentially transmitted (step 107). In other words, the order of sending data to the sending queue should be set in order of decreasing data amount. If the data type is single, the information is simply transmitted (steps 104, 107).
- the data is read from the database 22 and the read order, that is, the search order or transmission order is used. Rather than simply sending in the order in which they were temporarily stored, the stored data was rearranged and sent in ascending order of the amount of data. Since the waiting time until the information is displayed and displayed is shortened, the user does not have to feel a sense of waiting. That is, for example, if one answer includes character information with a small amount of data and image information with a large amount of data, when the information providing center 1 sends both image information first, the image information is The crew will wait for a long time until the reception of the image is completed and the image is displayed.
- the feature of the present embodiment is the processing on the information providing center side, and the vehicle ⁇ does not require any special configuration or processing as in the past:
- the method of transmitting information when only one search result is obtained in response to a search request has been described.
- a process in which a plurality of search results are obtained is also described with reference to a flowchart shown in FIG. Note that the device configuration in the present embodiment and the embodiments described below are the same as those in the first embodiment.
- the information providing center 1, * sends requests received if the search request or information from both sides, accepts the search request (Step 2 0 1), the search processing to the data base over scan 2 2, etc. To meet this And obtain the appropriate information (step 202).
- the search processing by the search unit 24 not only one search result but also a plurality of search results may be obtained as described above.
- the number of search results and the data type included in all search results are detected (step 203).
- a data group is formed for each data type (steps 204 and 205).
- the retrieved results as shown in FIG. 5, i.e. information lambda, B, C, and D were obtained as a search result, characters de one data (3 1, 1 3 1_, (: 1, (1 1_), image data (ai, bi, ci, di) and audio data (av, bv, cv, dv). Therefore, if only information A is obtained as a search result, three data groups of character data, image data, and audio data are formed, and the data included in each data group is at, ai and av, which are substantially the same processing as in Embodiment 1.
- the data amount is calculated for each data group (step 206). Obtained by calculating the sum of bt, ct and dt.
- the transmission order is determined by arranging the data groups in the order of least 7).
- the transmission order is further determined by arranging the data in each data group in ascending order of the data ft of the data constituting the data group (step 209). For example, if each data amount in the character data group is at>bt> c ⁇ > dt, the data is transmitted in the order of dt, ct, bt, at. In this way, when the data transmission order of all the search results is determined, the data is transmitted.
- the data type and the search result are single, for example, if the search result is only information A and information A is composed of only character data at, there is no need to rearrange.
- the data is transmitted as it is (steps 204, 208, 210).
- the search results are information A, B, C, and D, and each information consists only of character data at, bt, ct, and dt. If the data is included in this character data group, the data is rearranged from the data having the smaller data amount, and each data is sequentially transmitted (step 2 ()). 4, 209, 209, 210).
- the above-described rearrangement process is performed, whereby The same effect as in mode 1 can be obtained.
- the character information of each restaurant is transmitted first to be displayed on the display unit 14 so that the requester can display the information.
- image data with a relatively large data amount is transmitted, and the photos and map information of each restaurant are displayed later.
- the text information of each restaurant is transmitted and displayed first, so that even if the map information or the like has not been displayed yet, the requester does not feel waiting.
- the information providing center 1 sends out data with a small amount of data, for example, character data in a lump first.
- the display area of the display unit 14 is finite, and the amount of information that can be displayed at one time is also finite.
- N information items
- the number of search results is divided into N units to create a unit. It is common practice to switch and display screens on a unit basis. In other words, even if the data amount of the entire character data group included in the search results is smaller than that of the other data groups, the data amount of the unit-divided character data is not necessarily the smallest in all units.
- the data is divided into units, and the data amount of each data group is calculated for each unit. It is characterized in that it is sent out from.
- the information providing center 1 When receiving a search request, that is, a request for information transmission from the vehicle side, the information providing center 1 accepts the search request (step 301), and performs a search process to the database 22 to respond to the request. And obtain the appropriate information (step 302).
- the unit is divided into four units (steps 303 and 304). Of course, the last unit may have less than four.
- data rearrangement and information transmission processing steps 203 to 210 in FIG. 4 as shown in the second embodiment are performed (steps 305 and 306). ). This process is performed for all units (steps 307 and 308).
- the information sent is divided into units, and since the data sent from each unit has a small amount of data, it is displayed on the first screen (unit). Data can be obtained in a shorter time than necessary to perform the search, and there is no feeling of having to wait until information is displayed on the screen after requesting a search. Then, while the occupant is referring to the first character information, the image data of the first screen (unit) is received, and subsequently the information to be displayed on the subsequent screen is received.
- all the search results are unit-divided into the minimum unit required for displaying information, and then the data groups are rearranged and information is transmitted for each unit. This allows information to be displayed in a shorter period of time, so that the requester does not feel waiting.
- the present embodiment is characterized in that search results are divided into units, and each unit is transmitted from a unit having a small data amount.
- search results are divided into units, and each unit is transmitted from a unit having a small data amount.
- an example has been described in which the number of information items that can be simultaneously displayed on one screen is handled as a unit. Conversion is also within the scope of the present invention.
- the unit is divided rather based on the specification of information transmission or display.
- the present embodiment is characterized in that unit division is performed by focusing on the processing speed of the search processing of the information providing center 1. That is, in the present embodiment, when it is necessary to obtain a plurality of pieces of information in response to a search request, and when it is necessary to search a plurality of databases, the search process is divided into units for each database. This feature reduces overhead by switching the database.
- the database 22 in the present embodiment is composed of a plurality of databases, and each database is described as being stored in physically different disk devices.
- the information providing center 1 When there is a search request from the vehicle side, that is, a request for transmitting information, the information providing center 1 accepts the search request (step 401). Then, it prays the search request and checks which database is accessed (step 402). As a result of analyzing the search request, if it is determined that access to multiple databases is necessary, unitize each database (Stetsa 403, 404). If the search request is “restaurants,” it is necessary to obtain information about restaurants serving different cuisines, such as Japanese, Western, and Chinese, included in each area around the station. At this time, it is assumed that the database is accessed by town or by dish as a search procedure, but the search unit 24 knows in advance which database is storing which information in a distributed manner. Therefore, the content of the search request is divided using each database as a unit.
- the packet position is changed. Since the information search process is performed and the information of the search result is transmitted, the description of this process is omitted.
- the present embodiment it is possible to reduce the overhead due to database switching during the search processing, thereby reducing the processing time of the entire search processing on the information providing center 1 side. can do. As a result, for the vehicle side, the waiting time after requesting a search is reduced, so that the feeling of being waited on can be minimized.
- the feature is that the processing time for accessing the database is shortened so that the requester does not feel awaited. Therefore, this embodiment depends on the specifications and design of the database. It is desirable to create a unit that is considered optimal. For example, it is desirable to consider the specifications of the disk drive, the number of accesses to the database (software), keyword searches, and so on.
- the information communication method according to the present invention has been described in the case of providing the information providing service to the vehicle. However, it is needless to say that the information communication method can be applied to a general client-server system.
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Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE69728675T DE69728675T2 (de) | 1996-08-28 | 1997-08-06 | Informationsübertragungsverfahren und vorrichtung dafür |
| EP97934705A EP0923033B1 (en) | 1996-08-28 | 1997-08-06 | Information transmission method and apparatus therefor |
| US09/246,151 US6499051B1 (en) | 1996-08-28 | 1999-02-08 | Information transmission method and device |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8/226352 | 1996-08-28 | ||
| JP22635296A JP3183181B2 (ja) | 1996-08-28 | 1996-08-28 | 情報送信方法 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US09/246,151 Continuation US6499051B1 (en) | 1996-08-28 | 1999-02-08 | Information transmission method and device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1998009222A1 true WO1998009222A1 (en) | 1998-03-05 |
Family
ID=16843820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP1997/002730 Ceased WO1998009222A1 (en) | 1996-08-28 | 1997-08-06 | Information transmission method and information transmitter |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US6499051B1 (ja) |
| EP (1) | EP0923033B1 (ja) |
| JP (1) | JP3183181B2 (ja) |
| KR (1) | KR100309849B1 (ja) |
| DE (1) | DE69728675T2 (ja) |
| WO (1) | WO1998009222A1 (ja) |
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| WO1999049438A1 (de) * | 1998-03-23 | 1999-09-30 | Mannesmann Ag | Verfahren und vorrichtung zum übertragen einer eine anfrage eines endgerätes bei einer zentrale beantwortenden antwort von der zentrale |
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| US8200837B1 (en) * | 1999-04-26 | 2012-06-12 | Hewlett-Packard Development Company, L.P. | Method and system for maintaining a content server at safe load conditions |
| WO2001024474A1 (en) * | 1999-09-27 | 2001-04-05 | Koninklijke Philips Electronics N.V. | Partitioning of file for emulating streaming |
| US7529806B1 (en) | 1999-11-04 | 2009-05-05 | Koninklijke Philips Electronics N.V. | Partitioning of MP3 content file for emulating streaming |
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| JP2003075171A (ja) * | 2001-09-07 | 2003-03-12 | Sony Corp | ナビゲーション装置、電子地図表示システム、ナビゲーション装置における電子地図表示方法、およびプログラム |
| JP2003083755A (ja) * | 2001-09-10 | 2003-03-19 | Pioneer Electronic Corp | 通信ナビゲーションシステムにおける経路データ送信方法およびサーバ装置、通信ナビゲーション端末装置 |
| US6970871B1 (en) * | 2002-04-11 | 2005-11-29 | Sprint Spectrum L.P. | System and method of sorting information based on a location of a mobile station |
| KR20030093753A (ko) * | 2002-06-05 | 2003-12-11 | 삼성전자주식회사 | 데이터 송수신 방법 및 장치 |
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- 1996-08-28 JP JP22635296A patent/JP3183181B2/ja not_active Expired - Fee Related
-
1997
- 1997-08-06 WO PCT/JP1997/002730 patent/WO1998009222A1/ja not_active Ceased
- 1997-08-06 EP EP97934705A patent/EP0923033B1/en not_active Expired - Lifetime
- 1997-08-06 DE DE69728675T patent/DE69728675T2/de not_active Expired - Fee Related
-
1999
- 1999-02-08 US US09/246,151 patent/US6499051B1/en not_active Expired - Fee Related
- 1999-02-27 KR KR1019997001689A patent/KR100309849B1/ko not_active Expired - Fee Related
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| JPH066350A (ja) * | 1992-06-22 | 1994-01-14 | Nec Software Ltd | 送信相手先順序決定方式 |
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| WO1999049438A1 (de) * | 1998-03-23 | 1999-09-30 | Mannesmann Ag | Verfahren und vorrichtung zum übertragen einer eine anfrage eines endgerätes bei einer zentrale beantwortenden antwort von der zentrale |
Also Published As
| Publication number | Publication date |
|---|---|
| US6499051B1 (en) | 2002-12-24 |
| JPH1069450A (ja) | 1998-03-10 |
| JP3183181B2 (ja) | 2001-07-03 |
| KR20000035948A (ko) | 2000-06-26 |
| KR100309849B1 (ko) | 2001-09-29 |
| DE69728675T2 (de) | 2005-03-24 |
| EP0923033A1 (en) | 1999-06-16 |
| DE69728675D1 (de) | 2004-05-19 |
| EP0923033A4 (en) | 2000-11-15 |
| EP0923033B1 (en) | 2004-04-14 |
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