Home Audio Video Interoperability
Transcript of Home Audio Video Interoperability
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16-08-10
PRESENTED BYVIDYA SANJEEVANS7 EC–ROLL NO:51SNMIMT
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HAVi
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CONTENTSINTRODUCTIONGOALSNEED FOR HAViARCHITECTURE WORKING CLASSIFICATIONADVANTAGESDISADVANTAGESAPPLICATIONSFUTURE SCOPECONCLUSIONREFERENCE
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HAVi
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INTRODUCTION
HAVi is a :
• Non-profit Organization
• Eight major manufacturers:
Grundig , Hitachi, Panasonic, Philips, Sharp, Sony, Thompson and Toshiba along with 30 other participants
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HAVi
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GOALS OF HAVi
Create an open standard
home networking
future- proof
simplify operation of devices by users
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HAVi
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HAVi
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HAVi
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HAVi ARCHITECTURE
Vendor specific hardware and software Application Programming Interface(API)
IEEE 1394 as connecting medium
Media Manager and messaging system
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Contd… Software modules :1. Registry2. Event Manager3. Stream Manager4. Resource Manager5. Device Control Modules (DCM)6. DCM Managers
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HAVi architecture
1394 Communication media manager : synchronous and asynchronous communication
Messaging System : passes messages
Registry : Directory service
Event Manager : Event delivery service
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HAVi
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Stream Manager : real time transfer of AV
Resource Manager : sharing of resources
Device Control Module(DCM) : Control
DCM Manager : installation and removal of DCM code units
Managing needed to prevent conflict between devices
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FIREWIRE IEEE 1394 standard , Apple Commuters
Data transfer rates of 400 Mbps (and more)
connects upto 63 devices without needing hubs
Isochronous protocol
plug and play
Addresses 64 bit address space
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WORKING
Locate FAV or IAV
Upload DCM
Install :I. Device Control modules for device II. Functional Component Modules for each component
of the device
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CLASSIFICATION OF HAVi DEVICES
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Runs all elements of the HAVi architecture
Runs Java code uploaded from other devices
They can act as controllers for other HAVi devices
examples: set top boxes, TV’s, PC’s
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FULL AV DEVICES
HAVi
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INTERMEDIATE AV DEVICES (IAV)
Cannot run Java bytecodes
Special purpose controllers for some devices
examples: Home theatre amplifiers or DVD players
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BASE AV DEVICES
Can store Java bytecode and upload it to a FAV
Controlled by code running on the FAV
Examples: Portable audio players, camcorders
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LEGACY AV DEVICES (LAV) Devices that already exist and are avilable
with users
Do not recognize HAVi architecture
Firewire and Non-Firewire
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ADVANTAGES
Interoperability
Brand Independence
Linked to the past , upgradable in the future
Hot “plug and enjoy”
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DISADVANTAGES Firewire complicated to implement
Data formats of devices different
Spread of viruses
very high price
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FUTURE SCOPE LINUX as operating system and JAVA as
programming language
Connecting HAVi to other networks
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CONCLUSION
Future of home networking
HAVi – the only standard capable of exploding AV capabilities
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REFERENCES
Bodlaender , M.P.; Wendorf , R.G., 2000, Adding full internet protocol functionality to HAVi , Proceedings of the ICCE International Conference on Consumer Electronics 2001, pp.
www.havi.orgIEEE, IEEE standard 1394, 1996, Standard for a High
Performance Serial Bus , Piscataway, N.J., IEEE Press, parts 1 - 5
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• THANK YOU
• QUERIES
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