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Patent Searching and Data


Title:
FAN OUT ADJUSTING SYSTEM
Document Type and Number:
Japanese Patent JPH086976
Kind Code:
A
Abstract:

PURPOSE: To realize an optimum speeded up fan out adjustment by performing a combination merger by considering the signal request time, load and polarity of a fan out destination, regarding a fan out adjusting system performing the fan out adjustment.

CONSTITUTION: This system is provided with a polarity adjustment part 6 calculating the pair of the positive polarity and the negative polarity signal request times when an inverter is directly inserted into each input terminal of a fan out destination and when the inverter is not inserted and a fan out adjustment part 7 taking out two pairs or plural pairs from the later one of the signal request times of the both polarities, subtracting the delay time of a driving buffer, calculating the positive polarity and the negative polarity signal request times of the input terminal of the buffer and repeating the calculation of the signal request time T when this buffer and the remaining input terminals are driven. The combination when the later signal request time To of the calcualted positive polarity and negative polarity signal request time T is provided is determined.


Inventors:
HIGUCHI HIROYUKI
Application Number:
JP13979294A
Publication Date:
January 12, 1996
Filing Date:
June 22, 1994
Export Citation:
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Assignee:
FUJITSU LTD
International Classes:
G06F17/50; (IPC1-7): G06F17/50
Attorney, Agent or Firm:
Morihiro Okada