Oscillator systems having annular resonant circuitry
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United States of America Patent
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Feb 23, 2016
Grant Date -
Jan 31, 2013
app pub date -
Jul 29, 2011
filing date -
Jul 29, 2011
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Abstract
Systems and apparatus are provided for solid-state oscillators and related resonant circuitry. An exemplary oscillator system includes an amplifier having an amplifier input and an amplifier output and resonant circuitry coupled between the amplifier output and the amplifier input. In exemplary embodiments, the resonant circuitry includes an annular resonance structure that is substantially symmetrical and includes a pair of arcuate inductive elements. In accordance with one or more embodiments, the resonant circuitry includes an additional inductive element that is capacitively coupled to the annular resonance structure via an air gap to improve the quality factor of the resonant circuitry.
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- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
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SHENZHEN XINGUODU TECHNOLOGY CO LTD | 17TH FLOOR JINSONG MANSION TERRA INDUSTRIAL & TRADE PARK FUTIAN SHENZHEN |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Shi, Tiefeng | Gilbert, US | 14 | 18 |
# of filed Patents : 14 Total Citations : 18 |
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Maintenance Fees
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11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Aug 23, 2027 |
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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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Legal Events
Date | Code | Event | Description |
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Dec 05, 2016 | STCH | INFORMATION ON STATUS: PATENT DISCONTINUATION | free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
Nov 06, 2016 | FP | LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE | Effective Date: Nov 06, 2016 |
Nov 06, 2016 | LAPS | LAPSE FOR FAILURE TO PAY MAINTENANCE FEES | |
Jun 17, 2016 | REMI | MAINTENANCE FEE REMINDER MAILED | |
Dec 09, 2012 | FEPP | FEE PAYMENT PROCEDURE | free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
Nov 06, 2012 | I | Issuance | |
Dec 01, 2011 | P | Published | |
Apr 26, 2011 | F | Filing | |
Mar 19, 2011 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:MURAKAMI, YOSHIAKI;YONEDA, MASAFUMI;REEL/FRAME:026181/0744 Owner name: KOBELCO CONSTRUCTION MACHINERY CO., LTD., JAPAN Effective Date: Mar 19, 2011 |
May 27, 2010 | PD | Priority Date |

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