Resources Contact Us Home
Encoding apparatus for a closed circuit television system

Image Number 2 for United States Patent #4490742.

Apparatus for generating an indicator on a remote monitor screen representative of the orientation of the monitoring camera. A sensor on the camera produces a signal proportional to the camera orientation. An encoder, including a sawtooth generator, a comparator, and time delay single-shot multivibrators, is synchronized to the camera video horizontal and vertical synchronization signals to provide a camera orientation indicator on the monitor. A modulator at the camera superimposes the encoded indicator signal onto the camera video signal thereby producing a single composite signal for transmission preferably over a single video or RF cable to the monitor.

  Recently Added Patents
Method and apparatus for supporting delivery, sale and billing of perishable and time-sensitive goods such as newspapers, periodicals and direct marketing and promotional materials
Polymer-encapsulated colorant nanoparticles
Permitting access of slave device from master device based on process ID's
Print system
Multi-contoured yoga support
Coordinated garbage collection for raid array of solid state disks
Memory access monitoring method and device
  Randomly Featured Patents
Methods and systems for improved virtual data storage management
Bell push
System and method for mobile automatic speech recognition
Image forming apparatus and cleaning method thereof
MOS type image pickup device capable of taking full picture at one time
Information providing apparatus and information providing method to create a recommended menu
Tubular header for a heat exchanger and a method of making such a heat exchanger
Apparatus for treating substrate
Perimeter-cooled turbine bucket airfoil cooling hole location, style and configuration
Magnetic tag firearm safety enhancement system