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Title:
DIGITAL CABLE HEADEND FOR CABLE TELEVISION DELIVERY SYSTEM
Document Type and Number:
Japanese Patent JP2005057793
Kind Code:
A
Abstract:

To provide a digital cable headend for a cable television delivery system.

A combiner that is a significant component in the configuration of a cable headend (42), selects a video signal to be combined as a fundamental function, processes video and audio signals at various data velocities as needed and performs packet switching on the combined signal. Fundamental components of an appropriate combiner are a control CPU, a digital logic and a serializer. The control CPU performs an intelligent function of the combiner together with the digital logic.


Inventors:
HENDRICKS JOHN S
BONNER ALFRED E
LAPPINGTON JOHN P
WUNDERLICH RICHARD E
Application Number:
JP2004262097A
Publication Date:
March 03, 2005
Filing Date:
September 09, 2004
Export Citation:
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Assignee:
DISCOVERY COMMUNICAT INC
International Classes:
G06F15/00; G06F17/00; G06F17/30; G08C23/04; G06Q30/00; H03J9/00; H04B1/06; H04H20/42; H04H20/79; H04H20/86; H04H60/13; H04H60/31; H04H60/39; H04H60/47; H04H60/72; H04J3/00; H04L9/32; H04L29/12; H04M1/57; H04N5/00; H04N5/44; H04N5/445; H04N5/60; H04N7/025; H04N7/08; H04N7/088; H04N7/10; H04N7/12; H04N7/14; H04N7/15; H04N7/16; H04N7/173; H04N7/24; H04N17/00; H04N21/218; H04N21/2187; H04N21/222; H04N21/235; H04N21/236; H04N21/2362; H04N21/2381; H04N21/2389; H04N21/25; H04N21/2543; H04N21/258; H04N21/262; H04N21/2668; H04N21/418; H04N21/422; H04N21/426; H04N21/431; H04N21/433; H04N21/434; H04N21/435; H04N21/4385; H04N21/442; H04N21/443; H04N21/45; H04N21/454; H04N21/462; H04N21/466; H04N21/47; H04N21/472; H04N21/475; H04N21/478; H04N21/4786; H04N21/4788; H04N21/482; H04N21/643; H04N21/6543; H04N21/6547; H04N21/81; H04N21/858; H04H20/78; H04H20/95; H04H60/22; H04H60/23; H04H60/66; H04H60/74; H04H60/94; H04H60/96; H04H60/97; H04N5/45; H04N; (IPC1-7): H04N7/10; H04B1/06
Attorney, Agent or Firm:
Kazuo Shamoto
Tadashi Masui
Yasushi Kobayashi
Otsuka Naruhiko