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Adjustable output driver circuit    
United States Patent5949254   
Link to this pagehttp://www.wikipatents.com/5949254.html
Inventor(s)Keeth; Brent (Boise, ID)
AbstractAn output driver circuit offers wave-shaping and logic level adjustment for high speed data communications in a synchronous memory such as a dynamic random access memory (DRAM). Level adjustment is obtained by resistive division between a termination resistor and controllable impedances between an output node and VDD and VSS power supplies. Wave-shaping functions include slew rate modification of the signal at the output node, by sequentially turning on or off output transistors in response to a transition in an input signal. Different schemes of weighting the output transistors obtains different wave-shaping characteristics of the output signal.



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Drawing from US Patent 5949254
Adjustable output driver circuit - US Patent 5949254 Drawing
Adjustable output driver circuit
Inventor     Keeth; Brent (Boise, ID)
Owner/Assignee     Micron Technology, Inc. (Boise, ID)
Patent assignment
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Publication Date     September 7, 1999
Application Number     08/757,738
PAIR File History     Application Data   Transaction History
Image File Wrapper   Patent Term   Fees
Litigation
Filing Date     November 26, 1996
US Classification     326/87 326/27 326/83
Int'l Classification     H03K 019/018.5
Examiner     Santamauro; Jon
Assistant Examiner     Le; Don
Attorney/Law Firm     Seed and Berry LLP
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Priority Data    
USPTO Field of Search     326/26 326/27 326/30 326/50 326/86 326/87 327/380 327/381
Patent Tags     adjustable output driver circuit
   
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Hamasaki
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 Market Review Submit all comments and votes
   
Market Size
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> $10B
$5B - $10B
$2B - $5B
$500M - $2B
$100M - $500M
$10M - $100M
$1M - $10M
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$100K - $500K
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$0
 
$0   $2.5B   $5B   $7.5B   $10B
Market Share
Estimate the percentage of the relevant market sector this invention will capture:
75% - 100%
50% - 74.99%
25% - 49.99%
10 - 24.99%
5 - 9.99%