Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Television signal data transmission system










Image Number 3 for United States Patent #4706284.

A television signal data transmission system comprises means for transmitting a television signal in which the phase of the RF carrier is modified during a periodically recurring interval by a SAW filter having a varying phase response between the video and audio carrier frequencies of the signal. The periodically recurring interval is modulated between a first width and a second smaller width respectively representing complementary logic states of a data bit. The first width of the width modulated interval preferably extends between two points respectively located within the non-viewable, overscan portions of the video signal immediately adjacent and on either side of a horizontal blanking interval of the television signal. The transmitted signal is received by a decoder which includes a phase modulation detector for detecting the width modulated intervals and a pulse width discriminator responsive thereto for deriving the data bits.








 
 
  Recently Added Patents
Method and apparatus for controlling cardiac resynchronization therapy using cardiac impedance
Image display device and display unit for image display device
Guitar strap attachment means
Display systems with touch screens
Optical input device
Vacuum cleaner
Cap
  Randomly Featured Patents
Method and system for parameter generation for digital noise reduction based on bitstream properties
Detergent composition
Method and system of detecting faults in a breathing assistance device
Cosmetic brush assembly
Method and apparatus for photofinishing a photosensitive media and/or ordering of imaging products
Printer
Auger assembly
Calixarenes and their use for sequestration of metals
Hinge mechanism of foldable device, and foldable device provided with hinge mechanism
Toilet seat protector