Resources Contact Us Home
Fiber optics transmission system

Image Number 5 for United States Patent #5812296.

In a fiber optics transmission system in which a plurality of access units are cascade-connected via up-link and down-link optical fiber lines and connected to a base unit, the base unit has a beat noise detector and a noise information generator and, upon detection of beat noise, noise information is sent to each access unit over the optical fiber lines. Each access unit has a random signal generator for generating a random value in response to the noise information and a wavelength control circuit for randomly selecting and controlling the oscillation wavelength of a laser diode, and each access unit repeats random wavelength selection until the noise information is reduced.

  Recently Added Patents
Managing a packet service call within mobile communications user equipment
Flexible organic light emitting device and manufacturing method thereof
Method and apparatus for controlling peak amplifier and doherty power amplifier
Nitrogen and hindered phenol containing dual functional macromolecular antioxidants: synthesis, performances and applications
Battery pouch sheet edge insulation
Device and method for arranging vials
Image processing apparatus, image processing method, and program to create a composite image from color image data and monochrome image data
  Randomly Featured Patents
Blocked polyisocyanates formed from hexamethylene-1,6-diisocyanate and acetoacetic acid C.sub.3 -C.sub.5 alkyl esters
Combined clock and desk holder for note paper and writing instruments
Optical transceiver integratable with silicon VLSI
[Speed-limit setup meter]
Method and system for recycling discarded industrial products
Programmable packet processor with flow resolution logic
Set of key buttons for a handset
Transmitting signals over alternating current power networks
Stabilizing agent for control material, control material containing the stabilizing agent, and measurement kit comprising the control material
Method for manufacturing substantially flat dies