Microphone System and Method
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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N/A
Issued Date -
Feb 12, 2015
app pub date -
Mar 12, 2013
filing date -
Mar 12, 2012
priority date (Note) -
Published
status (Latency Note)
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Abstract
A microphone system (10) includes a microphone sub-system including a microphone (14); and an acoustic filter (12). The acoustic filter (12) can include a resistive element (20) and a closed volume configured to act as an acoustic compliance. The acoustic filter (12) is configured to have a frequency response substantially equal and opposite to a difference between a frequency response of the microphone sub-system and a desired frequency response of the system (10).
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 | |
---|---|---|
THE SECRETARY OF STATE FOR BUSINESS INNOVATION AND SKILLS OF HER MAGESTY'S BRITANNIC GOVERNMENT | 1 VICTORIA STREET LONDON SW1 0ET |
International Classification(s)

- 2013 Application Filing Year
- H03G Class
- 509 Applications Filed
- 444 Patents Issued To-Date
- 87.23 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Barham, Richard | London, GB | 1 | 5 |
# of filed Patents : 1 Total Citations : 5 |
Cited Art Landscape
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Patent Citation Ranking
- 5 Citation Count
- H03G Class
- 17.07 % this patent is cited more than
- 10 Age
Forward Cite Landscape
- No Forward Cites to Display

Maintenance Fees
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11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Aug 12, 2026 |
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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 |
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