US5384547A
Expired / Lapsed
US
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Apparatus and method for attenuating a multicarrier input signal of a linear device
Assignee: Motorola Mobility LLC
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Filing: 1993-08-02
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Granted: 1995-01-24
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Expires: 2013-08-02
Abstract
Abstract The apparatus first measures the peak power of a multichannel signal, or representation thereof. The peak power is compared with one or more peak power threshold values. If the measured peak power exceeds a threshold value, the multichannel signal is attenuated prior to being processed by the linear power amplifier.
Inventors
- 👤 Charles N. Lynk, Jr.
- 👤 Mark Van Horn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:47
CPC Classifications
H; H03; H03G; H03G3/00; H03G3/20; H03G3/30; H03G3/3052; H03G3/3078; H03G3/3036; H04; H04L; H04L27/00; H04L27/26; H04L27/2601; H04L27/2614; H04L27/2623; H04L27/2624
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
67 words
A method for attenuating a multicarrier input signal of a linear device, said method comprising the steps of: measuring a peak power of said multicarrier input signal; comparing said peak power to a plurality of thresholds; and attenuating said input signal by an amount relating to a number of said plurality of thresholds exceeded if said peak power exceeds one or more of said plurality of thresholds.
Claim 2
Independent Claim
67 words
A method for attenuating a multicarrier input signal of a linear device, said method comprising the steps of: measuring a peak power of said multicarrier input signal; comparing said peak power to a plurality of thresholds; and attenuating said input signal by an amount relating to a number of said plurality of thresholds exceeded if said peak power exceeds one or more of said plurality of thresholds.
Claim 3
Independent Claim
89 words
A method for attenuating a multicarrier input signal of a linear power amplifier comprising the steps of: monitoring said multicarrier signal to produce a representative multicarrier signal; measuring a peak power of said representative multicarrier signal; comparing said peak power to a first preset threshold; attenuating said input signal by a first amount if said peak power exceeds said first preset threshold; comparing said peak power to a second preset threshold; and attenuating said input signal by a second amount if said peak power exceeds said first preset threshold.
Claim 4
Independent Claim
89 words
A method for attenuating a multicarrier input signal of a linear power amplifier comprising the steps of: monitoring said multicarrier signal to produce a representative multicarrier signal; measuring a peak power of said representative multicarrier signal; comparing said peak power to a first preset threshold; attenuating said input signal by a first amount if said peak power exceeds said first preset threshold; comparing said peak power to a second preset threshold; and attenuating said input signal by a second amount if said peak power exceeds said first preset threshold.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-01-23 | 1998-07-25 | 1999-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-01-23 | 2002-07-25 | 2003-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-01-23 | 2006-07-25 | 2007-01-24 | $7700.00 | Window Closed / Lapsed |