US20050090953A1 - System and method for data exchange in a vehicle multimedia system - Google Patents
System and method for data exchange in a vehicle multimedia system Download PDFInfo
- Publication number
- US20050090953A1 US20050090953A1 US10/642,453 US64245303A US2005090953A1 US 20050090953 A1 US20050090953 A1 US 20050090953A1 US 64245303 A US64245303 A US 64245303A US 2005090953 A1 US2005090953 A1 US 2005090953A1
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- US
- United States
- Prior art keywords
- multimedia
- interface unit
- unit
- multimedia system
- data bus
- 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.)
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/42—Loop networks
Definitions
- the invention relates to a system and method for data exchange for a multimedia system for a vehicle, with several units, which are connected to one another through an optical data bus laid as a ring line in the vehicle.
- Multimedia systems are already standard equipment in top class motor vehicles.
- a multimedia system for a motor vehicle several units are connected to one another by an optical data bus, which is laid as a ring line so data exchange is possible between arbitrary units of the ring Line.
- modem multimedia systems for vehicles are equipped, for example, with an audio system that includes an audio radio receiving system, a cassette unit, an audio CD player, loudspeakers, a television receiver, a VCR, a DVD player, a navigation system, a mobile telephone, a fax machine, an onboard computer, a keyboard, and a monitor.
- an audio system that includes an audio radio receiving system, a cassette unit, an audio CD player, loudspeakers, a television receiver, a VCR, a DVD player, a navigation system, a mobile telephone, a fax machine, an onboard computer, a keyboard, and a monitor.
- an audio system that includes an audio radio receiving system, a cassette unit, an audio CD player, loudspeakers, a television receiver, a VCR, a DVD player, a navigation system, a mobile telephone, a fax machine, an onboard computer, a keyboard, and a monitor.
- the number of units will increase in the future.
- a multimedia system suitable for use in vehicle and capable of communicating with an external unit includes an interface unit, a plurality of multimedia units, and an optical data bus configured as a ring line in the vehicle.
- the interface unit and the plurality of multimedia units are each connected to the optical data bus.
- the interface unit establishes a radio connection with the external unit, and the interface unit receives multimedia data over the radio connection and sends the received multimedia data over the optical data bus to at least one of the multimedia units.
- the interface unit may be located at an arbitrary point in the ring line to establish the radio connection with the external unit.
- FIG. 1 illustrates a vehicle multimedia system
- FIG. 2 illustrates an alternative embodiment multimedia system.
- FIG. 1 illustrates a multimedia system 10 that includes a plurality of multimedia units 12 - 16 and an interface unit 18 , interconnected by a ring line 20 (e.g., an optical data bus).
- a ring line 20 e.g., an optical data bus.
- the interface unit 18 Upon request of one of the multimedia units 12 - 16 , the interface unit 18 establishes a radio connection with an external unit 22 .
- the data sent by the external unit 22 to the multimedia system 10 are received by the interface unit 18 and forwarded to the appropriate unit 12 - 16 via the ring line 20 .
- the interface unit 18 can be located at an arbitrary point in the ring line.
- the interface unit 18 coordinates requests of the multimedia units 12 - 16 situated in the ring line 20 for radio connection to the external unit 22 . If the interface unit 18 receives several requests for a radio connection to the external unit simultaneously from several units 12 - 16 in the ring line 20 , the interface unit 18 determines the sequence for processing the requests in accordance with a specifiable method. For example, the interface unit 18 can determine the sequence for processing the requests according to the sequence of requesting units in the ring line 20 . However, it may also select the sequence for processing the requesting units randomly.
- the external unit 22 may be configured as a service unit that transmits traffic information.
- the operator can request traffic information from the external unit 22 via the navigation system.
- data can also be transmitted in the reverse direction.
- the operator can transmit information that describes local traffic conditions via the interface unit 18 to the external unit 22 , which can process this current on-site information to provide the requesting multimedia system with information and instructions appropriate to the traffic situation that prevails locally at the moment.
- FIG. 2 illustrates an alternative embodiment multimedia system 30 , in which the interface unit 18 is not disposed separately in the ring line 20 , but rather is integrated into one of the multimedia units (e.g., the unit 12 ).
- An advantage of a system according to the present invention is that in the transmission of data between the multimedia system (e.g., 10 or 30 ) and the external unit 22 , the external unit 22 always sees the same interface (i.e., the interface 18 ), regardless of the unit in the ring line that is currently communicating.
- inventive multimedia system is not limited to these systems or automotive vehicles.
Abstract
Description
- The invention relates to a system and method for data exchange for a multimedia system for a vehicle, with several units, which are connected to one another through an optical data bus laid as a ring line in the vehicle.
- Multimedia systems are already standard equipment in top class motor vehicles. In a multimedia system for a motor vehicle, several units are connected to one another by an optical data bus, which is laid as a ring line so data exchange is possible between arbitrary units of the ring Line.
- Convenient, modem multimedia systems for vehicles are equipped, for example, with an audio system that includes an audio radio receiving system, a cassette unit, an audio CD player, loudspeakers, a television receiver, a VCR, a DVD player, a navigation system, a mobile telephone, a fax machine, an onboard computer, a keyboard, and a monitor. Of course the number of units will increase in the future.
- Therefore, there is a need for a technique for exchanging data in a vehicle multimedia system.
- Briefly, according to an aspect of the present invention, a multimedia system suitable for use in vehicle and capable of communicating with an external unit, includes an interface unit, a plurality of multimedia units, and an optical data bus configured as a ring line in the vehicle. The interface unit and the plurality of multimedia units are each connected to the optical data bus. The interface unit establishes a radio connection with the external unit, and the interface unit receives multimedia data over the radio connection and sends the received multimedia data over the optical data bus to at least one of the multimedia units.
- The interface unit may be located at an arbitrary point in the ring line to establish the radio connection with the external unit.
- These and other objects, features and advantages of the present invention will become apparent in light of the following detailed description of preferred embodiments thereof, as illustrated in the accompanying drawings.
-
FIG. 1 illustrates a vehicle multimedia system; and -
FIG. 2 illustrates an alternative embodiment multimedia system. -
FIG. 1 illustrates amultimedia system 10 that includes a plurality of multimedia units 12-16 and aninterface unit 18, interconnected by a ring line 20 (e.g., an optical data bus). Upon request of one of the multimedia units 12-16, theinterface unit 18 establishes a radio connection with anexternal unit 22. The data sent by theexternal unit 22 to themultimedia system 10 are received by theinterface unit 18 and forwarded to the appropriate unit 12-16 via thering line 20. Theinterface unit 18 can be located at an arbitrary point in the ring line. - The
interface unit 18 coordinates requests of the multimedia units 12-16 situated in thering line 20 for radio connection to theexternal unit 22. If theinterface unit 18 receives several requests for a radio connection to the external unit simultaneously from several units 12-16 in thering line 20, theinterface unit 18 determines the sequence for processing the requests in accordance with a specifiable method. For example, theinterface unit 18 can determine the sequence for processing the requests according to the sequence of requesting units in thering line 20. However, it may also select the sequence for processing the requesting units randomly. - In one embodiment, the
external unit 22 may be configured as a service unit that transmits traffic information. For example, if themultimedia system 10 is equipped with a navigation system, the operator can request traffic information from theexternal unit 22 via the navigation system. However, data can also be transmitted in the reverse direction. For example, the operator can transmit information that describes local traffic conditions via theinterface unit 18 to theexternal unit 22, which can process this current on-site information to provide the requesting multimedia system with information and instructions appropriate to the traffic situation that prevails locally at the moment. -
FIG. 2 illustrates an alternativeembodiment multimedia system 30, in which theinterface unit 18 is not disposed separately in thering line 20, but rather is integrated into one of the multimedia units (e.g., the unit 12). - An advantage of a system according to the present invention is that in the transmission of data between the multimedia system (e.g., 10 or 30) and the
external unit 22, theexternal unit 22 always sees the same interface (i.e., the interface 18), regardless of the unit in the ring line that is currently communicating. - Technical systems, such as for example media-oriented system transfer (MOST), General Packet Radio Services (GPRS), Universal Mobile Telephone System, (UMTS), and the Short Message Services (SMS) can all be integrated into the inventive vehicle multimedia system. However, the inventive multimedia system is not limited to these systems or automotive vehicles.
- Although the present invention has been shown and described with respect to several preferred embodiments thereof, various changes, omissions and additions to the form and detail thereof, may be made therein, without departing from the spirit and scope of the invention.
Claims (20)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/642,453 US20050090953A1 (en) | 1999-11-15 | 2003-08-15 | System and method for data exchange in a vehicle multimedia system |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19954758A DE19954758A1 (en) | 1999-11-15 | 1999-11-15 | Data exchange method for a multimedia system and multimedia system for a vehicle |
DE19954758.0 | 1999-11-15 | ||
US09/713,774 US6647327B1 (en) | 1999-11-15 | 2000-11-15 | System and method for data exchange in a vehicle multimedia system |
US10/642,453 US20050090953A1 (en) | 1999-11-15 | 2003-08-15 | System and method for data exchange in a vehicle multimedia system |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/713,774 Continuation US6647327B1 (en) | 1999-11-15 | 2000-11-15 | System and method for data exchange in a vehicle multimedia system |
Publications (1)
Publication Number | Publication Date |
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US20050090953A1 true US20050090953A1 (en) | 2005-04-28 |
Family
ID=7929010
Family Applications (2)
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---|---|---|---|
US09/713,774 Expired - Lifetime US6647327B1 (en) | 1999-11-15 | 2000-11-15 | System and method for data exchange in a vehicle multimedia system |
US10/642,453 Abandoned US20050090953A1 (en) | 1999-11-15 | 2003-08-15 | System and method for data exchange in a vehicle multimedia system |
Family Applications Before (1)
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US09/713,774 Expired - Lifetime US6647327B1 (en) | 1999-11-15 | 2000-11-15 | System and method for data exchange in a vehicle multimedia system |
Country Status (3)
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US (2) | US6647327B1 (en) |
EP (1) | EP1102434A3 (en) |
DE (1) | DE19954758A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20020098854A1 (en) * | 2000-12-04 | 2002-07-25 | Michael Becker | Motor vehicle data communication network |
US20070222764A1 (en) * | 2006-03-22 | 2007-09-27 | Centrality Communications, Inc. | Glide touch sensor based interface for navigation infotainment systems |
US20070222767A1 (en) * | 2006-03-22 | 2007-09-27 | David Wang | Glide touch sensor based interface for navigation infotainment systems |
US20100087986A1 (en) * | 2008-10-03 | 2010-04-08 | Robert Bosch Gmbh | Method and apparatus for customizing a wireless network architecture |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19954758A1 (en) * | 1999-11-15 | 2001-05-23 | Becker Gmbh | Data exchange method for a multimedia system and multimedia system for a vehicle |
DE10011330A1 (en) * | 2000-03-10 | 2001-09-20 | Becker Gmbh | Data transmission in ring-type communication network, e.g. MOST network, by common transmission of digital source and control data between data sources |
DE10128542A1 (en) * | 2001-06-13 | 2003-01-02 | Harman Becker Automotive Sys | Method for controlling several units networked with one another in a ring-shaped network, and ring-shaped network |
DE10153376A1 (en) * | 2001-10-29 | 2003-05-15 | Harman Becker Automotive Sys | Media Orientated Synchronous Transfer network for public service vehicles, has several circuits connected to application circuit and MOST circuit |
US7885279B2 (en) * | 2001-12-18 | 2011-02-08 | Becker Gmbh | Assigning a data channel to multiple data links for simultaneous data transmission via a single data channel |
KR100666784B1 (en) | 2005-07-07 | 2007-01-09 | 현대자동차주식회사 | Apparatus adding most-unit |
DE102006023137B4 (en) * | 2006-05-17 | 2010-05-20 | Continental Automotive Gmbh | Method and device for operating a MOST bus |
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Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20020098854A1 (en) * | 2000-12-04 | 2002-07-25 | Michael Becker | Motor vehicle data communication network |
US7917109B2 (en) * | 2000-12-04 | 2011-03-29 | Herman Becker Automotive System GmbH | Motor vehicle data communication network |
US20070222764A1 (en) * | 2006-03-22 | 2007-09-27 | Centrality Communications, Inc. | Glide touch sensor based interface for navigation infotainment systems |
US20070222767A1 (en) * | 2006-03-22 | 2007-09-27 | David Wang | Glide touch sensor based interface for navigation infotainment systems |
WO2008103189A2 (en) * | 2006-07-27 | 2008-08-28 | Sirf Technology Holdings, Inc. | Glide touch sensor based interface for navigation infotainment systems |
WO2008103189A3 (en) * | 2006-07-27 | 2008-11-13 | Sirf Technology Holdings Inc | Glide touch sensor based interface for navigation infotainment systems |
US20100087986A1 (en) * | 2008-10-03 | 2010-04-08 | Robert Bosch Gmbh | Method and apparatus for customizing a wireless network architecture |
US8229625B2 (en) * | 2008-10-03 | 2012-07-24 | Robert Bosch Gmbh | Method and apparatus for customizing a wireless network architecture |
Also Published As
Publication number | Publication date |
---|---|
EP1102434A2 (en) | 2001-05-23 |
US6647327B1 (en) | 2003-11-11 |
DE19954758A1 (en) | 2001-05-23 |
EP1102434A3 (en) | 2003-03-12 |
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