DE60321278D1 - Mehrkanal-Pulsbreitenmodulator - Google Patents

Mehrkanal-Pulsbreitenmodulator

Info

Publication number
DE60321278D1
DE60321278D1 DE60321278T DE60321278T DE60321278D1 DE 60321278 D1 DE60321278 D1 DE 60321278D1 DE 60321278 T DE60321278 T DE 60321278T DE 60321278 T DE60321278 T DE 60321278T DE 60321278 D1 DE60321278 D1 DE 60321278D1
Authority
DE
Germany
Prior art keywords
pulse width
width modulator
channel pulse
channel
modulator
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
Application number
DE60321278T
Other languages
English (en)
Inventor
Dong Han Seo
Oh Suk Kwon
Jong Woo Kim
Jae Gun Lee
Chan Tae Kim
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LG Electronics Inc
Original Assignee
LG Electronics Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from KR1020020046332A external-priority patent/KR100932501B1/ko
Priority claimed from KR1020020046897A external-priority patent/KR100906427B1/ko
Priority claimed from KR10-2002-0047335A external-priority patent/KR100538361B1/ko
Application filed by LG Electronics Inc filed Critical LG Electronics Inc
Application granted granted Critical
Publication of DE60321278D1 publication Critical patent/DE60321278D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03GCONTROL OF AMPLIFICATION
    • H03G3/00Gain control in amplifiers or frequency changers without distortion of the input signal
    • H03G3/001Digital control of analog signals
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03FAMPLIFIERS
    • H03F3/00Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/20Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
    • H03F3/21Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only
    • H03F3/217Class D power amplifiers; Switching amplifiers
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03FAMPLIFIERS
    • H03F3/00Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/68Combinations of amplifiers, e.g. multi-channel amplifiers for stereophonics
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03MCODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00Analogue/digital conversion; Digital/analogue conversion
    • H03M1/66Digital/analogue converters
    • H03M1/662Multiplexed conversion systems
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03MCODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00Analogue/digital conversion; Digital/analogue conversion
    • H03M1/66Digital/analogue converters
    • H03M1/70Automatic control for modifying converter range
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03MCODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00Analogue/digital conversion; Digital/analogue conversion
    • H03M1/66Digital/analogue converters
    • H03M1/82Digital/analogue converters with intermediate conversion to time interval
    • H03M1/822Digital/analogue converters with intermediate conversion to time interval using pulse width modulation
DE60321278T 2002-08-06 2003-08-06 Mehrkanal-Pulsbreitenmodulator Expired - Lifetime DE60321278D1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
KR1020020046332A KR100932501B1 (ko) 2002-08-06 2002-08-06 멀티 채널 펄스 폭 변조기에서의 채널별 게인 조절장치
KR1020020046897A KR100906427B1 (ko) 2002-08-08 2002-08-08 멀티 채널 펄스 폭 변조기에서의 채널별 온/오프제어장치
KR10-2002-0047335A KR100538361B1 (ko) 2002-08-10 2002-08-10 멀티 채널 펄스 폭 변조기에서의 노이즈 제거장치

Publications (1)

Publication Number Publication Date
DE60321278D1 true DE60321278D1 (de) 2008-07-10

Family

ID=30449204

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60321278T Expired - Lifetime DE60321278D1 (de) 2002-08-06 2003-08-06 Mehrkanal-Pulsbreitenmodulator

Country Status (4)

Country Link
US (1) US7580532B2 (de)
EP (1) EP1388943B1 (de)
CN (1) CN100521818C (de)
DE (1) DE60321278D1 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7061312B2 (en) * 2003-03-21 2006-06-13 D2Audio Corporation Systems and methods for providing multi channel pulse width modulated audio with staggered outputs
US7929718B1 (en) 2003-05-12 2011-04-19 D2Audio Corporation Systems and methods for switching and mixing signals in a multi-channel amplifier
US7706438B1 (en) * 2004-01-29 2010-04-27 Cirrus Logic, Inc. Circuits and methods for reducing noise and distortion in pulse width modulation systems
US7215272B2 (en) * 2004-04-16 2007-05-08 Ying Lau Lee Schemes to implement multi-level PWM in digital system
KR100739786B1 (ko) * 2006-01-20 2007-07-13 삼성전자주식회사 다중 채널 디지털 앰프 시스템 및 그 신호 처리 방법
KR100728041B1 (ko) * 2006-06-23 2007-06-14 삼성전자주식회사 디지털 pwm 신호를 저장 재생하는 오디오 시스템 및 그방법
TWI397805B (zh) * 2009-11-11 2013-06-01 Giga Byte Tech Co Ltd 電路系統及其控制方法
US8618875B2 (en) 2011-12-20 2013-12-31 Blackberry Limited Using a new synchronization scheme for a multi-channel class-D amplifier
JP6830437B2 (ja) 2014-12-10 2021-02-17 リージェンツ オブ ザ ユニバーシティ オブ ミネソタ 疾患を処置するための遺伝子改変された細胞、組織および臓器

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6047771B2 (ja) * 1977-09-20 1985-10-23 ソニー株式会社 増幅器の過負荷保護装置
US4641361A (en) * 1985-04-10 1987-02-03 Harris Corporation Multi-band automatic gain control apparatus
CN87107022A (zh) 1986-10-13 1988-05-18 株式会社半导体能源研究所 液晶器件的制造方法
US5771301A (en) * 1994-09-15 1998-06-23 John D. Winslett Sound leveling system using output slope control
US5796359A (en) * 1995-10-25 1998-08-18 Norand Corporation Data conversion and processing system
KR0182501B1 (ko) * 1996-06-12 1999-04-15 김광호 하드디스크드라이버의 채널특성 파라메타 측정장치
US6298025B1 (en) * 1997-05-05 2001-10-02 Warner Music Group Inc. Recording and playback of multi-channel digital audio having different resolutions for different channels
KR100268476B1 (ko) 1997-12-30 2000-10-16 윤종용 광디스크 재생기기의 오디오 채널 볼륨 제어방법
JP4089020B2 (ja) 1998-07-09 2008-05-21 ソニー株式会社 オーディオ信号処理装置
KR100466265B1 (ko) 1998-11-24 2005-06-28 주식회사 대우일렉트로닉스 디지털비디오디스크플레이어에서의오디오출력선택장치
EP1028524B1 (de) 1999-02-11 2004-08-18 STMicroelectronics S.r.l. PWM Leistungsverstärker mit digitalem Eingang
US6107876A (en) * 1999-04-13 2000-08-22 Ravisent Technologies, Inc. Digital input switching audio power amplifier
JP2002096503A (ja) * 1999-12-22 2002-04-02 Fuji Photo Film Co Ltd 多チャンネルパルス幅変調装置及びダウンカウンタ
KR20010095927A (ko) 2000-04-12 2001-11-07 오종훈 펄스변조 신호의 효과적인 스위칭 파워 증폭을 위한 에러보정 방법
JP2001318745A (ja) * 2000-05-11 2001-11-16 Sony Corp データ処理装置およびデータ処理方法、並びに記録媒体
US6429737B1 (en) * 2000-07-06 2002-08-06 Stmicroelectronics, Inc. Method and apparatus for multi-channel digital amplification
DE60029097T2 (de) 2000-08-04 2007-06-14 Stmicroelectronics S.R.L., Agrate Brianza Pulscodemodulation/Pulsbreitenmodulation-Umsetzer mit Pulsbreitenmodulation-Leistungsverstärker
DE60211872T2 (de) * 2001-03-26 2006-10-26 Harman International Industries, Incorporated, Northridge Pulsbreitemodulationsverstärker mit digitalem signalprozessor
KR200262157Y1 (ko) 2001-07-11 2002-03-18 주식회사 빅빔 디지털다기능 디스크 플레이어 겸용 디지털 리시버

Also Published As

Publication number Publication date
CN100521818C (zh) 2009-07-29
CN1496188A (zh) 2004-05-12
EP1388943A1 (de) 2004-02-11
US20040028243A1 (en) 2004-02-12
US7580532B2 (en) 2009-08-25
EP1388943B1 (de) 2008-05-28

Similar Documents

Publication Publication Date Title
DE602004026540D1 (de) Kurbelwellenmomentmodulator
FR2890544B1 (fr) Applicateur
BR0313322B1 (pt) escova de dentes
ATE456558T1 (de) Gabanerge modulatoren
DE60311524D1 (de) Zahnbürste
DE60206142D1 (de) Druckkopf
DE60314221D1 (de) Raupenfahrzeug
DE50301987D1 (de) Auftraggerät
DE60321278D1 (de) Mehrkanal-Pulsbreitenmodulator
DE60231286D1 (de) Optischer Modulator
DE50309027D1 (de) Geschäumte haftklebemassen
DE602004018247D1 (de) Modulator
FR2860402B1 (fr) Applicateur multiple
DE60317299D1 (de) Pulsbreitenmodulationsverstärker
FI20031208A0 (fi) Taajuusmuuttajan pulssinleveysmodulointi
NO20033191D0 (no) Fargemodulator
DE60302441T2 (de) Farb-fehlregistrierungsreduzierer
NO20032637D0 (no) Tannbörste
ATE473619T1 (de) Mehrkanaldimmer
DE60322635D1 (de) Geschalteter Modulator
DE502004008765D1 (de) Impulsgeber
DE50300775D1 (de) Zweipunkt-modulatoranordnung
DE60312585D1 (de) Zierband
AT5889U3 (de) Brennholzspleisser
ES1052518Y (es) Precinto perfeccionado

Legal Events

Date Code Title Description
8364 No opposition during term of opposition