Clock data recovery circuit and method having quick locking and bandwidth stabilizing mechanism
Number of patents in Portfolio can not be more than 2000
United States of America
Stats
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Apr 23, 2024
Grant Date -
N/A
app pub date -
Jul 11, 2022
filing date -
Jul 11, 2022
priority date (Note) -
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Importance

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Abstract
The present invention discloses a clock data recovery method having quick locking and bandwidth stabilizing mechanism used in a clock data recovery circuit. A relative position relation between a serial data and a sampling clock is detected by a phase detection circuit in an adaptive control period to generate a tracking direction. The tracking direction of a first clock period is directly outputted as an adaptive tracking direction by an adaptive tracking circuit. For each of the clock periods behind the first clock period, a previous tracking direction is replaced by a current tracking direction only when the current tracking direction exists and is different from the previous tracking direction of a previous clock period such that an actual tracking direction is generated when the adaptive tracking direction changes. The phase of the sampling clock is adjusted according to the actual tracking direction by a clock control circuit.
First Claim
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Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
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REALTEK SEMICONDUCTOR CORPORATION | NO 2 INNOVATION RD II HSINCHU SCIENCE PARK HSINCHU 30076 |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Liu, Hsi-En | Hsinchu, TW | 7 | 0 |
# of filed Patents : 7 Total Citations : 0 |
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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3.5 Year Payment | $1600.00 | $800.00 | $400.00 | Oct 23, 2027 |
7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Oct 23, 2031 |
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Oct 23, 2035 |
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Surcharge - 7.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
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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Legal Events
Date | Code | Event | Description |
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Oct 26, 2015 | STCH | INFORMATION ON STATUS: PATENT DISCONTINUATION | free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
Sep 25, 2015 | FP | LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE | Effective Date: Sep 25, 2015 |
Sep 25, 2015 | LAPS | LAPSE FOR FAILURE TO PAY MAINTENANCE FEES | |
May 08, 2015 | REMI | MAINTENANCE FEE REMINDER MAILED | |
Feb 24, 2011 | FPAY | FEE PAYMENT | year of fee payment: 4 |
Sep 25, 2007 | I | Issuance | |
Sep 08, 2005 | P | Published | |
Dec 16, 2004 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:KIRIYAMA, HIROMITSU;YAMAKAWA, KOICHI;REEL/FRAME:016140/0408 Owner name: JAPAN ATOMIC ENERGY RESEARCH INSTITUTE, JAPAN Effective Date: Dec 16, 2004 |
Aug 27, 2004 | F | Filing | |
Mar 04, 2004 | PD | Priority Date |

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