Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Delay locked loop for use in semiconductor memory device










Image Number 3 for United States Patent #6434062.

It is provided a delay locked loop for obtaining a reduced jitter and a stable time delay adjustment to thereby perform a bi-directional time delay with a small area even at low frequency applications. The delay locked loop includes an input unit for receiving a clock signal and a non-clock signal and comparing received signals to produce an internal clock signal, a controller for receiving the internal clock to produce a control signal, a bi-directional oscillator, responsive to the control signal from the control means, for performing a ring oscillation in a first or second direction and fulfilling an addition and subtraction adjustment function for a time delay, a counter for receiving an output signal of the bi-directional oscillator and counting the number that the signal is passed therethrough, and an AND gate for performing a combination operation on the outputs of the bi-directional oscillating means and the counting means, to produce the result as a final internal clock signal.








 
 
  Recently Added Patents
Method and apparatus for triggering expiration of a data tag device
Carrying case
Substituted di-arylhydantoin and di-arylthiohydantoin compounds and methods of use thereof
Semiconductor device
Automated hotfix handling model
Methods of saccharification of polysaccharides in plants
Soybean cultivar CL0911444
  Randomly Featured Patents
Process for producing tertiary amino group-containing vinyl polymers and curable resin compositions based on these polymers
Oxadiazole derivatives and thiadiazole derivatives having neovascularization inhibitory activity
Device having interleaving capabilities and a method for applying an interleaving function
Optical recording medium having auxiliary information and reference clock
Repair unit for pneumatic tires
Honeycomb structural body and manufacturing method thereof
Auto generation of suggested links in a search system
Hub ring and supporting plate for a filter
Method and apparatus for using wind turbines to generate and supply uninterrupted power to locations remote from the power grid
Soybean based transformer oil and transmission line fluid