Electronic digital logic circuitry – Interface – Current driving
Reexamination Certificate
2007-01-30
2007-01-30
Barnie, Rexford (Department: 2819)
Electronic digital logic circuitry
Interface
Current driving
C326S083000, C327S156000
Reexamination Certificate
active
10962929
ABSTRACT:
A method and an apparatus to reduce duty cycle distortion are described. The apparatus may include a first current-mode logic (CML) circuit block comprising a positive input and a negative input and a second CML circuit block coupled in series to the first CML circuit block. The second CML circuit block may comprise a positive output, a negative output and a first transistor coupled between the positive input and the positive output. The second transistor may be coupled between the negative input and the negative output of the second CML circuit block.
REFERENCES:
patent: 6411145 (2002-06-01), Kueng et al.
patent: 6466078 (2002-10-01), Stiff
patent: 6798297 (2004-09-01), Kwan et al.
patent: 6836185 (2004-12-01), Pobanz
patent: 6967514 (2005-11-01), Kizer et al.
Kwan King H.
Stiff Jonathon C.
Blakely , Sokoloff, Taylor & Zafman LLP
Crawford Jason
Cypress Semiconductor Corporation
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