Boosted-bias tunable filter with dynamic calibration
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Oct 26, 2010
Issued Date -
N/A
app pub date -
Feb 4, 2009
filing date -
Jul 21, 2005
priority date (Note) -
In Force
status (Latency Note)
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Abstract
In a signal communication device, a frequency-selective filter has at least one component that is biased by a control signal to establish a center frequency of the frequency-selective filter. A closed-loop bias generator is provided to generate the control signal and to adjust the control signal based, at least in part, on a comparison of the control signal and a reference signal.
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 | |
---|---|---|
SPREADTRUM COMMUNICATIONS (SHANGHAI) CO LTD | SPREADTRUM CENTER BLDG NO 1 2288 ZUCHONGZHI ROAD SHANGHAI CHINA SHANGHAI |
International Classification(s)

- 2009 Application Filing Year
- H04B Class
- 6815 Applications Filed
- 4420 Patents Issued To-Date
- 64.86 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Khitrov, Michael | Cupertino, US | 3 | 16 |
# of filed Patents : 3 Total Citations : 16 | |||
Sheng, Samuel W | Los Gatos, US | 68 | 1554 |
# of filed Patents : 68 Total Citations : 1554 |
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Patent Citation Ranking
- 5 Citation Count
- H04B Class
- 1.28 % this patent is cited more than
- 15 Age
Forward Cite Landscape
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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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