JPS59154509A - 超音波ワイヤレスリモ−トコントロ−ル装置 - Google Patents

超音波ワイヤレスリモ−トコントロ−ル装置

Info

Publication number
JPS59154509A
JPS59154509A JP2891983A JP2891983A JPS59154509A JP S59154509 A JPS59154509 A JP S59154509A JP 2891983 A JP2891983 A JP 2891983A JP 2891983 A JP2891983 A JP 2891983A JP S59154509 A JPS59154509 A JP S59154509A
Authority
JP
Japan
Prior art keywords
pipe
ultrasonic wave
ultrasonic
wave signal
remote controller
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.)
Granted
Application number
JP2891983A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0160845B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html
Inventor
Hirotoshi Kawaguchi
川口 裕敏
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.)
Panasonic Ecology Systems Co Ltd
Original Assignee
Matsushita Seiko 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 Matsushita Seiko Co Ltd filed Critical Matsushita Seiko Co Ltd
Priority to JP2891983A priority Critical patent/JPS59154509A/ja
Publication of JPS59154509A publication Critical patent/JPS59154509A/ja
Publication of JPH0160845B2 publication Critical patent/JPH0160845B2/ja
Granted legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G08SIGNALLING
    • G08CTRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C23/00Non-electrical signal transmission systems, e.g. optical systems
    • G08C23/02Non-electrical signal transmission systems, e.g. optical systems using infrasonic, sonic or ultrasonic waves

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
JP2891983A 1983-02-23 1983-02-23 超音波ワイヤレスリモ−トコントロ−ル装置 Granted JPS59154509A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2891983A JPS59154509A (ja) 1983-02-23 1983-02-23 超音波ワイヤレスリモ−トコントロ−ル装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2891983A JPS59154509A (ja) 1983-02-23 1983-02-23 超音波ワイヤレスリモ−トコントロ−ル装置

Publications (2)

Publication Number Publication Date
JPS59154509A true JPS59154509A (ja) 1984-09-03
JPH0160845B2 JPH0160845B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1989-12-26

Family

ID=12261806

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2891983A Granted JPS59154509A (ja) 1983-02-23 1983-02-23 超音波ワイヤレスリモ−トコントロ−ル装置

Country Status (1)

Country Link
JP (1) JPS59154509A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Also Published As

Publication number Publication date
JPH0160845B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1989-12-26

Similar Documents

Publication Publication Date Title
US4059726A (en) Process and apparatus for speech privacy improvement through incoherent masking noise sound generation in open-plan office spaces and the like
DE69831809D1 (de) Vorrichtung zur fernüberwachung von pathologischen zuständen
US3125286A (en) sanders
EP1109016A3 (en) Fluid Property monitor
EA199800253A1 (ru) Громкоговоритель, содежащий панелеобразный акустический излучающий элемент
US4180810A (en) Silent awakening system
ATE72748T1 (de) Akustisches stethoskop mit einem elektrischen filter.
ES2070486T3 (es) Filtro de reflector de ondas superficiales.
JPS5330296A (en) Electro-acoustic transducer
JPS59154509A (ja) 超音波ワイヤレスリモ−トコントロ−ル装置
JPS586633A (ja) 送受信システム
JPS5846800A (ja) 静電型超音波振動子
NO166427C (no) Anordning for generering av akustiske boelger.
US3657715A (en) Ultrasonic paging system
JPS5547743A (en) Communication system for mobile body
ATE237211T1 (de) Akustische vorrichtung nach dem biegewellenprinzip
CN2178973Y (zh) 无线麦克风发射器
CN108419171B (zh) 一种定向传播声音的闹钟
CN209067449U (zh) 一种具有消音功能的除氧循环泵
JP3011441U (ja) バイブレーション付目覚まし時計
GB516192A (en) Improvements in and relating to electric alarm systems
BIZO et al. Transparent sound screens(and their noise control efficiency in buildings)
JP2583752Y2 (ja) 可聴信号送出機能付携帯無線機
JPS5523341A (en) Blower device for underwater installation that use root type
CN113660577A (zh) 一种用于高空扩声使用的碟形声波反射装置