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US 6,166,971 AGranted
Method of and apparatus for correctly transmitting signals at high speed without waveform distortion
AssigneeFujitsu Limited
InventorsHirotaka Tamura, Hideki Takauchi, Tsz-shing Cheung, Kohtaroh Gotoh
Life of this patent
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Abstract
A driver circuit transmits a signal to a receiver circuit through a signal transmission line. The driver circuit has an output driver, a front driver, and a level adjuster. The front driver drives the output driver, and the level adjuster adjusts the output level of the front driver. The output driver generates a signal whose level is variable in response to an output level of the front driver.
Claims24
A driver circuit for transmitting digital signals, comprising:
- an output driver;
- a front driver for driving said output driver;
- and
- a level adjuster for adjusting the output level of said front driver, so that said output driver outputs a signal having a specific level varied in response to an output level of said front driver.
1 more element
A driver circuit for transmitting a signal, comprising:
- a code length controller for making a sum of a rise time and a fall time of each code contained in a signal to be transmitted equal to or longer than a bit time.
Dependencies are inferred from the claim text.