Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Transmission system with improved tone detection










Image Number 6 for United States Patent #5850437.

In a transmission system, a signalling tone is transmitted by a transmitter to a receiver via a transmission channel. In the receiver, a tone detector detects the presence of a signalling tone. In order to improve a reliability of the tone detector, a number of correlating elements which determine a correlation value between an input signal and a reference signal are used. Absolute output signals of the correlating elements are added by an adder to derive a combined correlation signal to be used for detection.








 
 
  Recently Added Patents
Under bump passive components in wafer level packaging
Approaching object detection system
Methods and compositions for inhibiting progression to chronic cardiac failure
Method and apparatus for allocating and obtaining IP address
Terminal device and image printing method
Light fixture
Etch resistant clearcoat
  Randomly Featured Patents
Shoe
Polyphenylene ether based resin composition
Toner for developing static image and an image forming method
Flexible inorganic electrolyte fuel cell design
Package socket and package legs structure for led and manufacturing of the same
System and method for applying standards to adapt generic educational materials for use in different states and regions
Method and apparatus for an electromagnetic propulsion system
Apparatus for and method of collecting trace samples for analysis
Novel substituted aromatic compounds
Method and system for controlling access of media on a media storage device