Television – Two-way video and voice communication – User positioning
Patent
1998-01-20
2000-03-21
Kostak, Victor R.
Television
Two-way video and voice communication
User positioning
455 62, H04N 710
Patent
active
060408510
ABSTRACT:
A method and apparatus are claimed that separate network-dependent from network-independent functions in set-top boxes (STBs), including digital consumer appliances and PCs. A receiver subsystem integrates network-dependent tuner, digital demodulation, Forward Error Correction (FEC), descrambling/decryption, and conditional access functions into a very small format (e.g., any of the PCMCIA Type I, II, or III form-factor). This combination of functions comprises a Digital Interface Conditional Access Module (DICAM). The DICAM interfaces with a Set-Top Universal Box (STUB) that includes network-independent functions. The STUB functionality may also be integrated with a consumer electronics (CE) appliance such as a TV, PC, DVD player, etc. The DICAM may also include an interface for "Smartcards" that implement any of the many different varieties of CA functions currently found around the world.
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Cheng Vernon
Mauro Greg
Conexant Systems Inc.
Kostak Victor R.
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