WO2007002486A3 - Amplifier and amplification method - Google Patents
Amplifier and amplification method Download PDFInfo
- Publication number
- WO2007002486A3 WO2007002486A3 PCT/US2006/024622 US2006024622W WO2007002486A3 WO 2007002486 A3 WO2007002486 A3 WO 2007002486A3 US 2006024622 W US2006024622 W US 2006024622W WO 2007002486 A3 WO2007002486 A3 WO 2007002486A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- audio signals
- amplitudes
- amplifier
- headphone
- raising
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/68—Combinations of amplifiers, e.g. multi-channel amplifiers for stereophonics
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
Abstract
An amplifier for a headphone is provided that can increase an upper limit on the amplitude of an audio signal generated between one common terminal and the output terminals of left and right channels, without raising the power supply voltage. The level at a common terminal C is changed corresponding to the average of the input audio signals (ViL, ViR) to increase the amplitudes of the output audio signals (VL, VR). In this way, the amplitudes of audio signals (VL, VR) supplied to the headphone can be increased compared with the case when the level at terminal C is kept constant. Also, the upper limit on the amplitudes of audio signals (VL, VR) can be increased without raising the power supply
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005-182190 | 2005-06-22 | ||
JP2005182190A JP2007006012A (en) | 2005-06-22 | 2005-06-22 | Amplifier and amplification method |
US11/425,753 US20070024364A1 (en) | 2005-06-22 | 2006-06-22 | Amplifier and amplification method |
US11/425,753 | 2006-06-22 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2007002486A2 WO2007002486A2 (en) | 2007-01-04 |
WO2007002486A3 true WO2007002486A3 (en) | 2007-05-31 |
Family
ID=37595911
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2006/024622 WO2007002486A2 (en) | 2005-06-22 | 2006-06-22 | Amplifier and amplification method |
Country Status (1)
Country | Link |
---|---|
WO (1) | WO2007002486A2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101889087B (en) * | 2007-11-29 | 2013-04-03 | 苏州瑞博生物技术有限公司 | A complex molecule interfering the expression of target genes and preparing methods thereof |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6181796B1 (en) * | 1998-02-13 | 2001-01-30 | National Semiconductor Corporation | Method and system which drives left, right, and subwoofer transducers with multichannel amplifier having reduced power supply requirements |
-
2006
- 2006-06-22 WO PCT/US2006/024622 patent/WO2007002486A2/en active Application Filing
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6181796B1 (en) * | 1998-02-13 | 2001-01-30 | National Semiconductor Corporation | Method and system which drives left, right, and subwoofer transducers with multichannel amplifier having reduced power supply requirements |
Also Published As
Publication number | Publication date |
---|---|
WO2007002486A2 (en) | 2007-01-04 |
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