Patent US5898342A successfully refreshed from Google Patents.
US5898342A
Expired / Lapsed
US
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Power amplifier arrangement and method for data signal interface
Assignee: Samsung Electronics Co Ltd
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Filing: 1998-01-20
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Granted: 1999-04-27
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Expires: 2018-01-20
Abstract
Abstract An arrangement and method using power more efficiently for signal amplification. The approach is particularly advantageous in application environments where digital information is converted to the analog domain and carried at a variety of different magnitudes. One embodiment involves a signal processing and amplifying arrangement including a digital-to-analog converter, an amplifier and a control signal selection circuit. The digital-to-analog converter receives a digital signal and outputs, in response to the digital signal, an analog signal. The amplifier amplifies the analog signal using power received from a high-level supply and a low-level supply, at least one of which has a variable setting in response to a control signal. The amplifier is configured and arranged to amplify the analog signal. The control signal selection circuit is responsive to the digital signal, and is used for selecting the control signal to cause the supplies to the amplifier to track the expected magnitude of the analog signal.
Inventors
- 👤 Russell W. Bell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 15:12
CPC Classifications
H; H03; H03M; H03M1/00; H03M1/66; H03M1/70; H03F; H03F1/00; H03F1/02; H03F1/0205; H03F1/0211; H03F1/0244
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
95 words
A signal processing and amplifying arrangement, comprising: a digital-to-analog converter configured and arranged to receive a digital signal and to output, in response to the digital signal, an analog signal; an amplifier receiving power from a high-level supply and a low-level supply, at least one of which has a variable setting in response to a control signal, the amplifier configured and arranged to amplify the analog signal; and means, responsive to the digital signal, for selecting the control signal to cause the supplies to the amplifier to track the expected magnitude of the analog signal.
Claim 2
Dependent Claim
95 words
A signal processing and amplifying arrangement, comprising: a digital-to-analog converter configured and arranged to receive a digital signal and to output, in response to the digital signal, an analog signal; an amplifier receiving power from a high-level supply and a low-level supply, at least one of which has a variable setting in response to a control signal, the amplifier configured and arranged to amplify the analog signal; and means, responsive to the digital signal, for selecting the control signal to cause the supplies to the amplifier to track the expected magnitude of the analog signal.
Claim 3
Dependent Claim
19 words
A signal processing and amplifying arrangement, according to claim 1, wherein the means for selecting includes a comparator circuit.
Claim 4
Dependent Claim
24 words
A signal processing and amplifying arrangement, according to claim 1, wherein the means for selecting includes a comparator circuit and a switching power supply.
Claim 5
Dependent Claim
38 words
A signal processing and amplifying arrangement, according to claim 3, wherein the comparator circuit measures the value of the digital signal relative to at least one threshold level and produces an output signal indicative of the measured value.
Claim 6
Dependent Claim
27 words
A signal processing and amplifying arrangement, according to claim 4, wherein the switching power supply provides the supplies to the amplifier in response to the output signal.
Claim 7
Dependent Claim
25 words
A signal processing and amplifying arrangement, according to claim 1, wherein the means for selecting includes a processor and a switch controlled by the processor.
Claim 8
Dependent Claim
42 words
A signal processing and amplifying arrangement, according to claim 4, wherein the switch responds to a command from the processor for switching the supplies to one of N settings, wherein N is a positive integer greater than one and less than 10.
Claim 9
Dependent Claim
24 words
A signal processing and amplifying arrangement, according to claim 1, further including a switching power supply configured and arranged to provide the variable setting.
Claim 10
Dependent Claim
24 words
A signal processing and amplifying arrangement, according to claim 1, further including a power coupling switch configured and arranged to provide the variable setting.
Claim 11
Dependent Claim
82 words
A signal processing and amplifying arrangement, comprising: means for receiving a digital signal and outputting, in response thereto, an analog signal; means for receiving power from a high-level supply and a low-level supply, at least one of which has a variable setting in response to a control signal, and for amplifying the analog signal; and means, responsive to the digital signal, for selecting the control signal to cause the supplies to the amplifier to track the expected magnitude of the analog signal.
Claim 12
Dependent Claim
82 words
A signal processing and amplifying arrangement, comprising: means for receiving a digital signal and outputting, in response thereto, an analog signal; means for receiving power from a high-level supply and a low-level supply, at least one of which has a variable setting in response to a control signal, and for amplifying the analog signal; and means, responsive to the digital signal, for selecting the control signal to cause the supplies to the amplifier to track the expected magnitude of the analog signal.
Claim 13
Independent Claim
77 words
A method for processing and amplifying a signal, comprising: receiving a digital signal; converting the digital signal to analog signal; using power from a high-level supply and a low-level supply, at least one of which has a variable setting in response to a control signal, to amplify the analog signal; and selecting, in response to the digital signal, the control signal to cause the supplies to the amplifier to track the expected magnitude of the analog signal.
Claim 14
Independent Claim
77 words
A method for processing and amplifying a signal, comprising: receiving a digital signal; converting the digital signal to analog signal; using power from a high-level supply and a low-level supply, at least one of which has a variable setting in response to a control signal, to amplify the analog signal; and selecting, in response to the digital signal, the control signal to cause the supplies to the amplifier to track the expected magnitude of the analog signal.
Claim 15
Dependent Claim
28 words
A method for processing and amplifying a signal, according to claim 11, wherein the step of selecting includes comparing the digital signal to at least one threshold value.
Claim 16
Dependent Claim
33 words
A method for processing and amplifying a signal, according to claim 11, wherein the step of selecting includes determining a value for the digital signal and using the value to define the setting.
Claim 17
Dependent Claim
23 words
A method for processing and amplifying a signal, according to claim 13, wherein the step of selecting includes using a switching power supply.
Claim 18
Dependent Claim
30 words
A method for processing and amplifying a signal, according to claim 11, wherein the step of selecting includes using a switching power supply to set the high-level and low-level supplies.
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) | 2002-04-26 | 2002-10-26 | 2003-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-04-26 | 2006-10-26 | 2007-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-04-26 | 2010-10-26 | 2011-04-27 | $7700.00 | Window Closed / Lapsed |