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US 6,320,475 B1Granted
Printed circuit board suppressing ringing in signal waveforms
AssigneeNEC Corporation
InventorHiroshi Kamiya
Life of this patent
Estimating the term…
Abstract
The present invention relates to a printed circuit board of the present invention comprising: a main transmission line; and additional transmission lines positioned on both sides of the main transmission line and parallel-connected to the main transmission line by way of selectors.
Claims12
A printed circuit board comprising:
- a main transmission line;
- and
- additional transmission lines, positioned on both sides of said main transmission line and parallel-connected to said main transmission line by way of selectors, to suppress ringing of an input waveform signal.
An electronic device comprising:
- a main transmission line;
- and
- additional transmission lines, positioned on both sides of said main transmission line and parallel-connected to said main transmission line by way of selectors, to suppress ringing of an input waveform signal.
A printed circuit board comprising:
- a first transmission line;
- second and third transmission lines, positioned on both sides of said first transmission line and parallel-connected to said first transmission line, to suppress ringing of an input waveform signal;
- and
- first to fourth selectors, each selector having first and second terminals, said each selector being able to connect and disconnect said first terminal to said second terminal, wherein
- one end of the first transmission line is connected to said first terminal of said first selector and to said first terminal of said second selector,
- said second terminal of said first selector is connected to one end of the second transmission line,
- said second terminal of said second selector is connected to one end of the third transmission line,
- the other end of said second transmission line is connected to said first terminal of said third selector,
- the other end of the third transmission line is connected to said first terminal of said fourth selector, and
- the other end of said first transmission line is connected to said second terminal of said third selector and to said second terminal of said fourth selector.
7 more elements
An electronic device comprising:
- a first transmission line;
- second and third transmission lines, positioned on both sides of said first transmission line and parallel-connected to said first transmission line, to suppress ringing of an input waveform signal;
- and
- first to fourth selectors, each selector having first and second terminals, said each selector being able to connect and disconnect said first terminal to said second terminal, wherein
- one end of the first transmission line is connected to said first terminal of said first selector and to said first terminal of said second selector,
- said second terminal of said first selector is connected to one end of the second transmission line,
- said second terminal of said second selector is connected to one end of the third transmission line,
- the other end of said second transmission line is connected to said first terminal of said third selector,
- the other end of the third transmission line is connected to said first terminal of said fourth selector, and
- the other end of said first transmission line is connected to said second terminal of said third selector and to said second terminal of said fourth selector.
7 more elements
Dependencies are inferred from the claim text.