US7224231B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for transforming output signals of a low-noise amplifier of a wireless transceiver
Assignee: Richwave Technology Corp
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Filing: 2005-03-23
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Granted: 2007-05-29
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Expires: 2025-03-23
Abstract
Abstract A method for transforming single-ended signals outputted from a low-noise amplifier of a wireless transceiver into differential signals. The method includes: providing a transformer according to a default requirement of the wireless transceiver; transferring the single-ended signals provided by the low-noise amplifier to a first end of a primary end of the transformer, and coupling a second end of the primary end of the transformer to a power source; grounding a center tap of a secondary end of the transformer; and outputting the differential signals from two ends of the secondary end of the transformer.
Inventors
- 👤 Chia-Wei Wu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 11:54
CPC Classifications
H; H03; H03F; H03F1/00; H03F1/08; H03F1/22; H03F1/223; H03F1/26; H03F3/00; H03F3/189; H03F3/19; H03F3/193; H03F3/45; H03F3/45071; H03F3/45076; H03F3/45179; H03F3/45183; H03F3/45188; H03F2200/00; H03F2200/294; H03F2200/372; H03F2200/541; H03F2203/00; H03F2203/45; H03F2203/45731
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
101 words
A method for transforming single-ended signals outputted from a low-noise amplifier of a wireless transceiver into differential signals comprising: (a) providing a transformer according to a default requirement of the wireless transceiver; (b) transferring the single-ended signals provided by the low-noise amplifier to a first end of a primary end of the transformer, and coupling a second end of the primary end of the transformer to a power source; (c) coupling a center tap of the secondary end of the transformer to the power source; and (d) outputting the differential signals from two ends of the secondary end of the transformer.
Claim 2
Independent Claim
101 words
A method for transforming single-ended signals outputted from a low-noise amplifier of a wireless transceiver into differential signals comprising: (a) providing a transformer according to a default requirement of the wireless transceiver; (b) transferring the single-ended signals provided by the low-noise amplifier to a first end of a primary end of the transformer, and coupling a second end of the primary end of the transformer to a power source; (c) coupling a center tap of the secondary end of the transformer to the power source; and (d) outputting the differential signals from two ends of the secondary end of the transformer.
Claim 3
Dependent Claim
39 words
The method of claim 1 , wherein in step (a), the default requirement of the wireless transceiver is determined according to a voltage source needed by the wireless transceiver, and the transformer is provided according to the default requirement.
References Cited (Backward Citations)
US6275687B1
Cited
US6836183B2
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2010-05-28 | 2010-11-27 | 2011-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2014-05-28 | 2014-11-27 | 2015-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2018-05-28 | 2018-11-27 | 2019-05-29 | $7700.00 | Window Closed / Lapsed |