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
Automatic image-content based adjustment of printer printing procedures
Liquid-level sensor
Power supply device
Methods and apparatus for low power out-of-band communications
Generation of interpolated samples for decision based decoding
Financial transaction cards
Method for processing power headroom and terminal thereof
  Randomly Featured Patents
Electronic door with key-in-lever feature
PID filter circuit and FIFO circuit
Level-restoring buffers for programmable interconnect circuits and method for building the same
Anti abrasion layer
Method for adjusting a braking system in a vehicle in the event of a collision
Electrostatic copying machine
Methods for inactivating target DNA and for detecting conformational change in a nucleic acid
Hull for a sailboat
Device for implant work
Method for fabricating low-k dielectric and Cu interconnect