JP3811030B2 - デジタルアンプ - Google Patents
デジタルアンプ Download PDFInfo
- Publication number
- JP3811030B2 JP3811030B2 JP2001233791A JP2001233791A JP3811030B2 JP 3811030 B2 JP3811030 B2 JP 3811030B2 JP 2001233791 A JP2001233791 A JP 2001233791A JP 2001233791 A JP2001233791 A JP 2001233791A JP 3811030 B2 JP3811030 B2 JP 3811030B2
- Authority
- JP
- Japan
- Prior art keywords
- signal
- level
- output
- reference wave
- analog signal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000001514 detection method Methods 0.000 claims description 23
- 230000007423 decrease Effects 0.000 claims description 5
- 238000009499 grossing Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 15
- 230000003321 amplification Effects 0.000 description 8
- 238000003199 nucleic acid amplification method Methods 0.000 description 8
- 239000003990 capacitor Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000003247 decreasing effect Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000005236 sound signal Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
Images
Landscapes
- Analogue/Digital Conversion (AREA)
- Amplifiers (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001233791A JP3811030B2 (ja) | 2001-08-01 | 2001-08-01 | デジタルアンプ |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001233791A JP3811030B2 (ja) | 2001-08-01 | 2001-08-01 | デジタルアンプ |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2003046346A JP2003046346A (ja) | 2003-02-14 |
| JP2003046346A5 JP2003046346A5 (https=) | 2005-03-17 |
| JP3811030B2 true JP3811030B2 (ja) | 2006-08-16 |
Family
ID=19065521
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001233791A Expired - Lifetime JP3811030B2 (ja) | 2001-08-01 | 2001-08-01 | デジタルアンプ |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3811030B2 (https=) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010154210A (ja) * | 2008-12-25 | 2010-07-08 | Sanyo Electric Co Ltd | パルス幅変調回路の過変調防止回路及びそれを備えたディジタルアンプ |
| JP5157959B2 (ja) * | 2009-02-27 | 2013-03-06 | ヤマハ株式会社 | D級増幅器 |
| CN112054799B (zh) * | 2020-08-25 | 2024-06-07 | 北京旋极信息技术股份有限公司 | 信号处理电路 |
-
2001
- 2001-08-01 JP JP2001233791A patent/JP3811030B2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JP2003046346A (ja) | 2003-02-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1941613B (zh) | D类放大器 | |
| US20040138769A1 (en) | Digital amplifier and method for adjusting gain of same | |
| KR20070113434A (ko) | 입력이득 자동 제어회로 및 그 방법 | |
| US20100027813A1 (en) | Switching audio amplifier, digital speaking device and audio amplification method | |
| JPH10242780A (ja) | オーディオ機器のひずみを自動的に制限するための方法およびこの方法を実施するための回路装置 | |
| US6266423B1 (en) | Microphone output limiter | |
| CN111466082B (zh) | 具有占空比控制的d类放大器 | |
| EP2368373A1 (en) | System and method for dynamic bass frequency control | |
| JP3811030B2 (ja) | デジタルアンプ | |
| JP3296311B2 (ja) | 音響装置 | |
| US20090284314A1 (en) | Audio amplifier | |
| JP2001507911A (ja) | オーディオ信号処理回路を有するオーディオシステム | |
| US20100246852A1 (en) | Output-level-controlling converter device | |
| US20130093489A1 (en) | Signal converter equipped with overvoltage protection mechanism | |
| JP5343782B2 (ja) | D級増幅器 | |
| US7400194B2 (en) | Method of amplifying a digital signal and device therefor | |
| JP5303488B2 (ja) | 振幅抑圧回路 | |
| CN1153504C (zh) | 包含音频信号处理电路的音频系统 | |
| JP5109956B2 (ja) | 増幅器の保護回路 | |
| EP2659586B1 (en) | Method for forming an electric signal representing a sound and a device therefor | |
| JPH07307994A (ja) | スピーカー駆動装置 | |
| JP2003046346A5 (https=) | ||
| EP4117179B1 (en) | Audio processor and corresponding method | |
| JP3942857B2 (ja) | パルス符号変調信号再生装置 | |
| JP3857154B2 (ja) | パルス符号変調信号再生装置 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20040413 |
|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20040413 |
|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20051219 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20060307 |
|
| A711 | Notification of change in applicant |
Free format text: JAPANESE INTERMEDIATE CODE: A712 Effective date: 20060323 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20060404 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20060516 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20060525 |
|
| R150 | Certificate of patent or registration of utility model |
Free format text: JAPANESE INTERMEDIATE CODE: R150 Ref document number: 3811030 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| S531 | Written request for registration of change of domicile |
Free format text: JAPANESE INTERMEDIATE CODE: R313531 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090602 Year of fee payment: 3 |
|
| S343 | Written request for registration of root pledge or change of root pledge |
Free format text: JAPANESE INTERMEDIATE CODE: R316354 |
|
| SZ02 | Written request for trust registration |
Free format text: JAPANESE INTERMEDIATE CODE: R316Z02 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090602 Year of fee payment: 3 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313111 |
|
| S343 | Written request for registration of root pledge or change of root pledge |
Free format text: JAPANESE INTERMEDIATE CODE: R316350 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| R371 | Transfer withdrawn |
Free format text: JAPANESE INTERMEDIATE CODE: R371 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090602 Year of fee payment: 3 |
|
| S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313111 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090602 Year of fee payment: 3 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100602 Year of fee payment: 4 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100602 Year of fee payment: 4 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100602 Year of fee payment: 4 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110602 Year of fee payment: 5 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110602 Year of fee payment: 5 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120602 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120602 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120602 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120602 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130602 Year of fee payment: 7 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130602 Year of fee payment: 7 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130602 Year of fee payment: 7 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130602 Year of fee payment: 7 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130602 Year of fee payment: 7 |
|
| S843 | Written request for trust registration of cancellation of root pledge |
Free format text: JAPANESE INTERMEDIATE CODE: R314361 |
|
| SZ03 | Written request for cancellation of trust registration |
Free format text: JAPANESE INTERMEDIATE CODE: R316Z03 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| S303 | Written request for registration of pledge or change of pledge |
Free format text: JAPANESE INTERMEDIATE CODE: R316303 |
|
| S303 | Written request for registration of pledge or change of pledge |
Free format text: JAPANESE INTERMEDIATE CODE: R316303 |
|
| S303 | Written request for registration of pledge or change of pledge |
Free format text: JAPANESE INTERMEDIATE CODE: R316303 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| S321 | Written request for registration of change in pledge agreement |
Free format text: JAPANESE INTERMEDIATE CODE: R316321 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| S303 | Written request for registration of pledge or change of pledge |
Free format text: JAPANESE INTERMEDIATE CODE: R316304 |
|
| S531 | Written request for registration of change of domicile |
Free format text: JAPANESE INTERMEDIATE CODE: R316531 |
|
| S803 | Written request for registration of cancellation of provisional registration |
Free format text: JAPANESE INTERMEDIATE CODE: R316803 |
|
| R371 | Transfer withdrawn |
Free format text: JAPANESE INTERMEDIATE CODE: R371 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| S803 | Written request for registration of cancellation of provisional registration |
Free format text: JAPANESE INTERMEDIATE CODE: R316803 |
|
| R371 | Transfer withdrawn |
Free format text: JAPANESE INTERMEDIATE CODE: R371 |
|
| S803 | Written request for registration of cancellation of provisional registration |
Free format text: JAPANESE INTERMEDIATE CODE: R316803 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| EXPY | Cancellation because of completion of term |