Enhanced definition NTSC compatible television system

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 5138449
SERIAL NO

07667038

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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This invention relates to methods for transmitting and receiving high resolution television pictures which utilizes the present channel bandwidths and is compatible with present day receivers. Four fields are utilized to produce two interlaced frames. The camera is adjusted so that each scene is converted into four fields of two frames and a signal is sent to inform the receiver to interlace the two frames. Compatibility is obtained since in a 525 line receiver two of the fields are displayed on top of the other two fields.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kerpchar, Michael 17 Nokomis Ave., Lake Hiawatha, NJ 07034 1 49

Cited Art Landscape

Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (1)
* 4531152 Television system and method 12 1981
 
SONY CORPORATION (1)
* 4451848 Television receiver including a circuit for doubling line scanning frequency 15 1981
 
NEW YORK INSTITUTE OF TECHNOLOGY, WHEATLEY RD., OLD WESTBURY, N A CORP. OF NY (1)
* 4800426 Method and system for transmission and reception of high definition 56 1987
* Cited By Examiner

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (2)
* 2008/0259,012 Optical display system and method, active and passive dithering using birefringence, color image superpositioning and display enhancement with phase coordinated polarization switching 13 2007
* 2009/0033,607 Optical display system and method, active and passive dithering using birefringence, color image superpositioning and display enhancement with phase coordinated polarization switching 1 2007
 
SOLAE, LLC (1)
7556836 High protein snack product 1 2004
 
SHARP KABUSHIKI KAISHA (28)
7064740 Backlit display with improved dynamic range 75 2001
* 2003/0090,455 Backlit display with improved dynamic range 40 2001
7164284 Dynamic gamma for a liquid crystal display 13 2004
8395577 Liquid crystal display with illumination control 0 2004
7872631 Liquid crystal display with temporal black point 8 2004
7777714 Liquid crystal display with adaptive width 2 2004
7612757 Liquid crystal display with modulated black point 7 2004
7532192 Liquid crystal display with filtered black point 32 2004
7505018 Liquid crystal display with reduced black level insertion 11 2004
8378955 Liquid crystal display backlight with filtering 0 2004
7573457 Liquid crystal display backlight with scaling 25 2004
7737936 Liquid crystal display backlight with modulation 25 2004
7675500 Liquid crystal display backlight with variable amplitude LED 0 2004
7714830 Liquid crystal display backlight with level change 0 2004
* 2005/0088,401 Liquid crystal display backlight with level change 1 2004
7623105 Liquid crystal display with adaptive color 8 2004
7898519 Method for overdriving a backlit display 4 2005
8050511 High dynamic range images from low dynamic range images 3 2005
8050512 High dynamic range images from low dynamic range images 3 2005
7525528 Technique that preserves specular highlights 7 2005
7342592 System for reducing crosstalk 2 2006
9143657 Color enhancement technique using skin color detection 0 2006
8121401 Method for reducing enhancement of artifacts and noise in image color enhancement 0 2006
7853094 Color enhancement technique using skin color detection 10 2006
8941580 Liquid crystal display with area adaptive backlight 1 2006
7505027 Backlit display with improved dynamic range 1 2007
7505028 Backlit display with improved dynamic range 1 2007
7499017 Backlit display with improved dynamic range 3 2007
 
TAMIRAS PER PTE. LTD., LLC (2)
* 6108041 High-definition television signal processing for transmitting and receiving a television signal in a manner compatible with the present system 98 1997
* 6014182 Film source video detection 58 1997
 
NEC CORPORATION (1)
* 5638132 Image sensing and display system and image pick up and display system 4 1994
 
SAGE, INC. (1)
6580463 Film source video detection 25 2001
 
APPLE INC. (3)
9501993 Low power display device with variable refresh rates 0 2014
* 9318069 Low power display device with variable refresh rates 0 2014
* 2014/0198,138 LOW POWER DISPLAY DEVICE WITH VARIABLE REFRESH RATES 1 2014
 
FERGASON PATENT PROPERTIES LLC (10)
* 5537256 Electronic dithering system using birefrigence for optical displays and method 60 1994
* 5572341 Electro-optical dithering system using birefringence for optical displays and method 48 1995
* 5715029 Optical dithering system using birefringence for optical displays and method 65 1995
6184969 Optical display system and method, active and passive dithering using birefringence, color image superpositioning and display enhancement 110 1997
6243055 Optical display system and method with optical shifting of pixel position including conversion of pixel layout to form delta to stripe pattern by time base multiplexing 187 1998
6816141 Optical display system and method, active and passive dithering using birefringence, color image superpositioning and display enhancement with phase coordinated polarization switching 155 2000
7352347 Optical display system and method, active and passive dithering using birefringence, color image superpositioning and display enhancement with phase coordinated polarization switching 25 2004
7843416 Optical display system and method, active and passive dithering using birefringence, color image superpositioning and display enhancement with phase coordinated polarization switching 0 2007
7843417 Optical display system and method, active and passive dithering using birefringence, color image superpositioning and display enhancement with phase coordinated polarization switching 1 2007
7843418 Optical display system and method, active and passive dithering using birefringence, color image superpositioning and display enhancement with phase coordinated polarization switching 0 2007
 
TAMIRAS PER PTE. LTD., LLC (7)
6201577 Film source video detection 43 1999
6859237 Film source video detection 25 2003
* 2004/0008,777 Film source video detection 1 2003
7522221 Interlaced video field motion detection 4 2004
* 2005/0078,215 Interlaced video field motion detection 11 2004
8120710 Interlaced video field motion detection 1 2008
* 2009/0161,021 INTERLACED VIDEO FIELD MOTION DETECTION 1 2008
 
FERGASON LICENSING LLC (1)
8243004 Apparatus and method for preparing, storing, transmitting and displaying images 2 2004
 
ENTROPIC COMMUNICATIONS, LLC (2)
7961251 Method and apparatus for conversion of video formats to 120 Hz 4 to 1 interlaced formats 1 2002
* 2004/0001,159 Method and apparatus for conversion of video formats to 120 Hz 4 to 1 interlaced formats 11 2002
* Cited By Examiner