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
Systems and methods for velocity profile based approach to point control
Content reproduction apparatus and content processing method therefor
Reading apparatus and reading method
Electronic product design
Badge or pin
Incrementally increasing deployment of gateways
Polyester resin for toner, electrostatic charge image developing toner, electrostatic charge image developer, toner cartridge, process cartridge, image forming apparatus, and image forming met
  Randomly Featured Patents
Electrophotographic toner
Method of processing and heat-treating NbC-added Fe-Mn-Si-based shape memory alloy
Internal pressure indicator and locking mechanism for a downhole tool
Virtual studio position sensing system
Pneumatic starter for internal combustion engine
Method for controlling a display screen, in particular a plasma display screen, and device for same
Tile making machines
Variable impedance adapter for tuning system performance
Programmable high endurance block for EEPROM device
Extension connection method and route selection device