Series terminated clock deskewing apparatus
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 26, 1997
Grant Date -
N/A
app pub date -
Oct 5, 1994
filing date -
Oct 5, 1994
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A series clock deskewing apparatus uses a series terminated single transmission line system to deliver a clock signal to a load. A plurality of series clock deskewing apparatuses are implemented, one for each load, so that the clock signal is delivered to all loads simultaneously. Each series clock deskewing apparatus has a single series termination resistor with the same impedance value as the transmission line to which it is coupled. For each load, the clock signal travels the transmission line from a clock generator to the load and is simultaneously applied to the deskewing apparatus. A clock signal is reflected at the load back to the deskewing apparatus. The roundtrip transit time is determined by the deskewing apparatus which causes an appropriate delay to adjust each clock signal to arrive synchronously at all the loads. A programmable output driver impedance network can be used for the single line termination resistor of the series terminated clock deskewing apparatus can be used with transmission lines having different line impedances.
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- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
RF MICRO DEVICES INC | 7628 THORNDIKE ROAD GREENSBORO NC 27409 |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Aswell, Cecil | Orangevale, CA | 11 | 283 |
# of filed Patents : 11 Total Citations : 283 | |||
McBride, Ken | Sunnyvale, CA | 3 | 38 |
# of filed Patents : 3 Total Citations : 38 |
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Patent Citation Ranking
- 14 Citation Count
- H03K Class
- 59.24 % this patent is cited more than
- 28 Age
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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