Timer Interrupt method for achieving quality-of-service criteria

Details Timer Interrupt method for achieving quality-of-service criteria Timer Interrupt method for achieving quality-of-service criteria

1997-04-16

1999-07-20

Hofsass, Jeffery A.

Multiplex communications

Communication techniques for information carried in plural...

Adaptive

370329, 370337, 370347, 370468, 370431, 370437, 370442, H04N 762

Patent

active

059264810

ABSTRACT:
An implementation method is described that efficiently achieves Quality-of-Service (QoS) criteria in a Media-on-Demand (MOD) server system. A MOD server system comprises a media server connected to a plurality of client stations via a shared transmission medium, such as a LAN network. To guarantee the QoS, the output rate of each data stream (of data requested by a client) needs to be specified individually. The inventive timer interrupt driven method achieves the necessary QoS, while reducing the complexity of conventional systems. In particular, a set of hardware timers is used to control the data rates. Each data request is handled by an individual timer, hence, different data streams may have different data request rates. Such design provides several advantages over other implementations, such as low overhead and high scalability.

REFERENCES:
patent: 5533021 (1996-07-01), Branstad et al.
Kenchammana-Hosekote, Scheduling Continuous Media in a Video-On-Demand Server, P. 20, May. 1994.

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