Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Method and system for detecting digital QAM, VSB and analog TV signals










Image Number 4 for United States Patent #7265793.

A method and system is provided, which may detect digital QAM, VSB and analog TV signals in a faster and more efficient manner than conventional systems. The system and method may be deployed in, for example, cable TV set-top boxes, cable TV modems and television set receivers, which may be coupled to a cable TV or off-the-air terrestrial network. Power measurements of the RF carriers found in a cable TV channel may be utilized to determine whether a digital QAM signal, digital VSB signal, or an analog signal is present in a TV channel. In this regard, it is not necessary for a receiver to demodulate, lock, synchronize, decode and/or validate any video or audio information or digital bit stream in order to detect digital QAM, digital VSB and analog TV signals, or not signal at all. Accordingly, the process of detecting digital QAM, digital VSB and analog TV signals is shortened and simplified.








 
 
  Recently Added Patents
Shared system to operationally connect logic nodes
High surface area composition for use in the catalytic hydroconversion of a heavy hydrocarbon feedstock, a method making such composition and its use
Resource compatability for data centers
Eyeglass component
Electric washing machine
System and method for enhanced artificial bandwidth expansion
Display window with level of service graphical user interface
  Randomly Featured Patents
Adaptive temperature dependent feedback clock control system and method
N,N-Dimethylene phosponic acids of alkylene diamines
Power boat with improved hull
Continuous method for manufacturing grain-oriented magnetostrictive bodies
Base stock lube oil manufacturing process
System for monitoring and recording motor vehicle operating parameters and other data
Variable speed transfer roller for bowling lane dressing apparatus
Apparatus for punching symbols into template material
Process for the palladium-catalyzed amidation of vinyl chloride
Seat assembly with a single position memory dump mechanism