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
Data paths using a first signal to capture data and a second signal to output data and methods for providing data
Method and system of extending battery life of a wireless microphone unit
Converter and measuring apparatus
Managing aging of silicon in an integrated circuit device
Imidazole derivatives used as TAFIa inhibitors
Additives for oil recovery from reservoirs
Personal IP toll-free number
  Randomly Featured Patents
Method for changing the lift of an inlet valve of an internal combustion engine
Hair dryer insert to maintain hair position
Stabilizer mixtures
Method for producing uniform polymethylmethacrylate layers
Polypeptides and polynucleotides for enhancing immune reactivity to HER-2 protein
Gene delivery compositions and methods
Camera support
Providing localized individually customized updates from a social network site to a desktop application
Uniform illumination device for the dial of a display device
Thin-oxide devices for high voltage I/O drivers