JPH0221720B2 - - Google Patents

Info

Publication number
JPH0221720B2
JPH0221720B2 JP12936583A JP12936583A JPH0221720B2 JP H0221720 B2 JPH0221720 B2 JP H0221720B2 JP 12936583 A JP12936583 A JP 12936583A JP 12936583 A JP12936583 A JP 12936583A JP H0221720 B2 JPH0221720 B2 JP H0221720B2
Authority
JP
Japan
Prior art keywords
signal
electroacoustic transducer
pulse code
code modulation
ultrasonic
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
JP12936583A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6021695A (ja
Inventor
Shoichi Sasabe
Junichiro Fujimoto
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.)
Nippon Columbia Co Ltd
Original Assignee
Nippon Columbia Co Ltd
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
Application filed by Nippon Columbia Co Ltd filed Critical Nippon Columbia Co Ltd
Priority to JP12936583A priority Critical patent/JPS6021695A/ja
Publication of JPS6021695A publication Critical patent/JPS6021695A/ja
Publication of JPH0221720B2 publication Critical patent/JPH0221720B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K15/00—Acoustics not otherwise provided for
    • G10K15/02—Synthesis of acoustic waves

Landscapes

  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • General Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Circuit For Audible Band Transducer (AREA)
JP12936583A 1983-07-18 1983-07-18 パルス符号変調信号再生装置 Granted JPS6021695A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12936583A JPS6021695A (ja) 1983-07-18 1983-07-18 パルス符号変調信号再生装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12936583A JPS6021695A (ja) 1983-07-18 1983-07-18 パルス符号変調信号再生装置

Publications (2)

Publication Number Publication Date
JPS6021695A JPS6021695A (ja) 1985-02-04
JPH0221720B2 true JPH0221720B2 (ru) 1990-05-15

Family

ID=15007780

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12936583A Granted JPS6021695A (ja) 1983-07-18 1983-07-18 パルス符号変調信号再生装置

Country Status (1)

Country Link
JP (1) JPS6021695A (ru)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11164384A (ja) 1997-11-25 1999-06-18 Nec Corp 超指向性スピーカ及びスピーカの駆動方法
US6850623B1 (en) * 1999-10-29 2005-02-01 American Technology Corporation Parametric loudspeaker with improved phase characteristics
EP3101907A1 (en) * 2015-06-01 2016-12-07 Université du Maine Digital loudspeaker

Also Published As

Publication number Publication date
JPS6021695A (ja) 1985-02-04

Similar Documents

Publication Publication Date Title
JP4371268B2 (ja) 指向性スピーカーの駆動方法および指向性スピーカー
JPH11164384A (ja) 超指向性スピーカ及びスピーカの駆動方法
US5095509A (en) Audio reproduction utilizing a bilevel switching speaker drive signal
US7596228B2 (en) Parametric array modulation and processing method
JPS62296698A (ja) パラメトリツクスピ−カ
US10708690B2 (en) Method of an audio signal correction
JPH0221720B2 (ru)
US20030039370A1 (en) Method and apparatus for eliminating audio feedback
JPH08149592A (ja) パラメトリックスピーカ制御装置
JPH0458758B2 (ru)
JP4535758B2 (ja) 超指向性スピーカ用変調器
JP2618242B2 (ja) 模擬音響発生装置
JP2003299180A (ja) 超音波ラウドスピーカの駆動の駆動方法及びラウドスピーカシステム
JP3049815B2 (ja) ディジタルマイクロホン
JP4522121B2 (ja) 超指向性スピーカ用変調器
JPS60204198A (ja) 低歪スピ−カ装置
JP3947649B2 (ja) 超音波合成による可聴帯音波発生方法及び装置
JP3581343B2 (ja) 音響再生方法・音響再生装置
JPS6249638B2 (ru)
JPS60201275A (ja) 電気音響変換装置
SU799164A1 (ru) Акустический агрегат
JPH06106000B2 (ja) パラメトリツクスピ−カ
JPS59128900A (ja) 圧電型電気音響変換器
JPH0632542B2 (ja) 音響再生装置
JPH04123699A (ja) 電気音響変換装置