Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Adaptive threshold determination for ball grid array component modeling










Image Number 7 for United States Patent #7027637.

A method for determining a number of balls in a projection space comprises determining a projection of a portion of a ball grid array, determining at least one local maximum of the projection space for a given threshold, and determining at least a distance between adjacent maximum. The method further comprises determining an inter-peak histogram of the distances, determining an inter-ball distance for each pair of adjacent balls that has the maximum value of the inter-peak distance histogram corresponding to the pair of adjacent balls, and determining a position of a first ball and a position of a last ball. The method comprises verifying the position of the first ball and the position of the last ball based on a general inter-ball distance, and determining the number of balls.








 
 
  Recently Added Patents
Tomlinson Harashima precoding with additional receiver processing in a multi-user multiple-input multiple-output wireless transmission system
Toy track intersection component
Low temperature pressure chamber unit, magnetic resonance device with a low temperature pressure chamber unit, and an attachment method to attach at least one add-on unit to an external housin
Video processing system and device with encoding and decoding modes and method for use therewith
Dehydratable hygiene articles
Dual work function recessed access device and methods of forming
Piezoelectric ultrasonic transducer apparatus
  Randomly Featured Patents
Ultrasonic focusing system
Ammunition magazine
Method and arrangement for generating unique identifiers for logical units of SCSI devices
Adjustable telescopic alignment apparatus for use with a carrier lens
Lipophilic contrast agents for use in hepatocyte-selective oil-in-water emulsions
Demodulator device and demodulation method for reducing PCR jitter
Analgesic and anti-inflammatory agents
Suspension of substantially water-insoluble drugs and methods of their manufacture
Refrigerant cycle
Dyeing machine with reversible dye spouter