Minimizing the dependency of source code on the in-band...

Details Minimizing the dependency of source code on the in-band... Minimizing the dependency of source code on the in-band...

2004-08-10

2010-06-15

Cao, Diem K (Department: 2194)

Electrical computers and digital processing systems: interprogra

Device driver communication

Device driver configuration

C725S151000, C713S001000

Reexamination Certificate

active

07739692

ABSTRACT:
The present invention is directed to minimizing the dependency of source code on the characteristics of a set-top box's in-band (streaming video or audio) hardware. The set-top box software consists of a device driver layer, which is intimately aware of hardware characteristics, an application layer, which is relatively unaware of any hardware details, a middleware layer which is also relatively unaware of any hardware details, and a device translation layer (DTL). In the DTL, all of the translation between device abstractions to device driver calls that were formerly made in middleware are moved down to an engine manager. Middleware thus becomes device-independent with respect to in-band devices, and porting Middleware to new hardware becomes trivial.

REFERENCES:
patent: 6889118 (2005-05-01), Murray et al.
patent: 2002/0170039 (2002-11-01), Kovacevic
patent: 2003/0056090 (2003-03-01), Khanna et al.
patent: 2003/0131043 (2003-07-01), Berg et al.
patent: 2004/0049672 (2004-03-01), Nollet et al.
patent: 2005/0144332 (2005-06-01), Nellitheertha

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