Up-converter and down-converter for in-building CATV system

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 6581208
SERIAL NO

09507713

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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An in-building CATV system having a down-converter for converting the in-building upward signal to the signal for a bi-directional CATV system provided with a high-pass filter disposed between an internal terminal and a converter for eliminating input of the downward signal passed through the downward signal path and selectively passing the in-building upward signal, a low-pass filter disposed between the converter and an external terminal for eliminating the downward signal inputted from the external terminal and selectively passing the upward signal outputted from the converter, a high-pass filter disposed between the external terminal and the downward signal path for eliminating input of the upward signal outputted from the converter and selectively passing the downward signal inputted from the external terminal and a low-pass filter disposed between the downward signal path and the internal-terminal for eliminating the in-building upward signal inputted from the internal terminal and selectively passing the downward signal.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
MASPRODENKOH KABUSHIKIKAISHAAICHI8

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Inaguma, Mitsuhiko Nisshin, JP 3 50

Cited Art Landscape

Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (1)
* RE31639 Bidirectional unicable switching system 19 1981
 
ARRIS INTERNATIONAL, INC. (1)
* 6094211 TV and data cable system ingress noise blocker 57 1996
 
NEC Kansai, Ltd. (1)
* 4569084 Frequency converter, especially CATV converter 28 1984
 
HUGHES ELECTRONICS CORPORATION (1)
* 5835128 Wireless redistribution of television signals in a multiple dwelling unit 161 1996
 
U.S. PHILIPS CORPORATION (1)
* 5557319 Subscriber return system for CATV full service networks 58 1994
 
QORVO US, INC. (1)
* 6160571 Compact cable tuner/transceiver 38 1999
 
PLESSEY SEMICONDUCTORS LIMITED (1)
* 5230086 Narrow band communication system 54 1990
 
COMSONICS, INC. (1)
* 4494138 Segmented upstream management for cable television 32 1983
 
TEXAS INSTRUMENTS INCORPORATED (1)
* 6212397 Method and system for controlling remote multipoint stations 77 1997
 
XYLON LLC (1)
* 6151559 System and method for characterizing undesirable noise of a signal path within a selected frequency band 19 1997
 
FUJITSU LIMITED (1)
* 5548811 Automatic frequency control circuit selectively using frequency-divided local oscillator signal or pilot signal 17 1994
 
ANDREW LLC (1)
* 5437052 MMDS over-the-air bi-directional TV/data transmission system and method therefor 55 1993
 
Global Communications, Inc. (1)
* 5073930 Method and system for receiving and distributing satellite transmitted television signals 127 1989
* Cited By Examiner

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
ARRIS ENTERPRISES LLC (2)
* 7036140 Capacity scaling and functional element redistribution within an in-building coax cable internet access system 15 2001
* 2002/0059,634 Capacity scaling and functional element redistribution within an in-building coax cable internetAccess system 42 2001
 
ADVANCED INTERACTIVE, INC. (1)
* 2002/0056,141 Two way cable system with noise-free return path 0 2001
 
MASPRODENKOH KABUSHIKIKAISHA (3)
* 6973670 In-building CATV system, down-converter, up-converter and amplifier 2 2000
* 7093276 CATV trunk amplifier, upward signal amplifier, and bi-directional CATV system 1 2001
* 2001/0022,002 CATV trunk amplifier, upward signal amplifier, and bi-directional CATV system 0 2001
 
XTEND NETWORKS LTD. (3)
* 2005/0283,816 Wideband node in a cable TV network 17 2004
* 7904932 Wideband node in a CATV network 1 2008
* 2009/0119,735 WIDEBAND NODE IN A CATV NETWORK 6 2008
 
CONVERSANT INTELLECTUAL PROPERTY MANAGEMENT INC. (11)
8243918 Outlet add-on module 3 2004
7715441 Network combining wired and non-wired segments 14 2005
7688841 Modular outlet 13 2006
7690949 Modular outlet 16 2006
8542819 Outlet add-on module 2 2007
7860084 Outlet with analog signal adapter, a method for use thereof and a network using said outlet 7 2008
7911992 Addressable outlet, and a network using the same 4 2008
8982904 Network combining wired and non-wired segments 0 2009
8873586 Network combining wired and non-wired segments 0 2010
8867506 Network combining wired and non-wired segments 0 2010
8848725 Network combining wired and non-wired segments 0 2012
* Cited By Examiner