US Patent No: 6,581,208

Number of patents in Portfolio can not be more than 2000

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

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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 KABUSHIKIKAISHAAICHI63

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Inaguma, Mitsuhiko Nisshin, JP 3 46

Cited Art Landscape

Patent Info (Count) # Cites Year
 
ALTA VOCAL DATA LLC (1)
6,151,559 System and method for characterizing undesirable noise of a signal path within a selected frequency band 16 1997
 
ANDREW LLC (1)
5,437,052 MMDS over-the-air bi-directional TV/data transmission system and method therefor 41 1993
 
ARRIS INTERNATIONAL, INC. (1)
6,094,211 TV and data cable system ingress noise blocker 43 1996
 
COMSONICS, INC. (1)
4,494,138 Segmented upstream management for cable television 32 1983
 
FUJITSU LIMITED (1)
5,548,811 Automatic frequency control circuit selectively using frequency-divided local oscillator signal or pilot signal 17 1994
 
Global Communications, Inc. (1)
5,073,930 Method and system for receiving and distributing satellite transmitted television signals 120 1989
 
HUGHES ELECTRONICS CORPORATION (1)
5,835,128 Wireless redistribution of television signals in a multiple dwelling unit 134 1996
 
NEC Kansai, Ltd. (1)
4,569,084 Frequency converter, especially CATV converter 27 1984
 
PLESSEY SEMICONDUCTORS LIMITED (1)
5,230,086 Narrow band communication system 41 1990
 
RF MICRO DEVICES, INC. (1)
6,160,571 Compact cable tuner/transceiver 35 1999
 
TEXAS INSTRUMENTS INCORPORATED (1)
6,212,397 Method and system for controlling remote multipoint stations 26 1997
 
U.S. Philips Corporation (1)
5,557,319 Subscriber return system for CATV full service networks 37 1994
 
Other [Check patent profile for assignment information] (1)
RE31639 Bidirectional unicable switching system 18 1981

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
CONVERSANT INTELLECTUAL PROPERTY MANAGEMENT INC. (9)
8,243,918 Outlet add-on module 1 2004
7,715,441 Network combining wired and non-wired segments 7 2005
7,688,841 Modular outlet 7 2006
7,690,949 Modular outlet 9 2006
8,542,819 Outlet add-on module 1 2007
7,860,084 Outlet with analog signal adapter, a method for use thereof and a network using said outlet 5 2008
7,911,992 Addressable outlet, and a network using the same 3 2008
8,867,506 Network combining wired and non-wired segments 0 2010
8,848,725 Network combining wired and non-wired segments 0 2012
 
MASPRODENKOH KABUSHIKIKAISHA (2)
6,973,670 In-building CATV system, down-converter, up-converter and amplifier 2 2000
7,093,276 CATV trunk amplifier, upward signal amplifier, and bi-directional CATV system 1 2001
 
ARRIS ENTERPRISES, INC. (1)
7,036,140 Capacity scaling and functional element redistribution within an in-building coax cable internet access system 13 2001
 
XTEND NETWORKS LTD. (1)
7,904,932 Wideband node in a CATV network 1 2008
 
Other [Check patent profile for assignment information] (1)
8,873,586 Network combining wired and non-wired segments 0 2010

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
11.5 Year Payment $7400.00 $3700.00 $1850.00 Dec 17, 2014
Fee Large entity fee small entity fee micro entity fee
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00