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US 5,844,426 AGranted
Read Channel device
AssigneeTexas Intruments Incorporated
InventorsBenjamin Joseph Sheahan, Richard Charles Pierson
Life of this patent
Estimating the term…
Abstract
A level shift is provided between a first level and a second level for a first and second compensatory signal. Power supply variations are measured and the levels are compensated for these power supply variations so that the power supply does not affect the first and second levels.
Claims3
A level shift circuit for providing a level shift between a first level and a second level, comprising:
- a circuit to receive a first complementary signal and a second complementary signal;
- a circuit to shift said first complementary signal and said second complementary signal from said first level to said second level;
- a circuit to measure variations in a power supply to supply power to said level shift circuit for said first and second levels;
- a circuit to compensate said level shift circuit so that said variation of said power supply element affects said first and second level.
1 more element
Dependencies are inferred from the claim text.