JPS5972851A - 騒音制御方法 - Google Patents

騒音制御方法

Info

Publication number
JPS5972851A
JPS5972851A JP57183983A JP18398382A JPS5972851A JP S5972851 A JPS5972851 A JP S5972851A JP 57183983 A JP57183983 A JP 57183983A JP 18398382 A JP18398382 A JP 18398382A JP S5972851 A JPS5972851 A JP S5972851A
Authority
JP
Japan
Prior art keywords
signal
noise
control method
transmitter
switch
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
JP57183983A
Other languages
English (en)
Japanese (ja)
Other versions
JPS649785B2 (enrdf_load_stackoverflow
Inventor
Tadayoshi Makino
忠由 牧野
Seiji Nakama
名嘉真　成二
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 Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP57183983A priority Critical patent/JPS5972851A/ja
Publication of JPS5972851A publication Critical patent/JPS5972851A/ja
Publication of JPS649785B2 publication Critical patent/JPS649785B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/08—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic
    • H04M9/085—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic using digital techniques

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Telephone Set Structure (AREA)
JP57183983A 1982-10-19 1982-10-19 騒音制御方法 Granted JPS5972851A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57183983A JPS5972851A (ja) 1982-10-19 1982-10-19 騒音制御方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57183983A JPS5972851A (ja) 1982-10-19 1982-10-19 騒音制御方法

Publications (2)

Publication Number Publication Date
JPS5972851A true JPS5972851A (ja) 1984-04-24
JPS649785B2 JPS649785B2 (enrdf_load_stackoverflow) 1989-02-20

Family

ID=16145255

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57183983A Granted JPS5972851A (ja) 1982-10-19 1982-10-19 騒音制御方法

Country Status (1)

Country Link
JP (1) JPS5972851A (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4790018A (en) * 1987-02-11 1988-12-06 Argosy Electronics Frequency selection circuit for hearing aids
US5321758A (en) * 1989-03-02 1994-06-14 Ensoniq Corporation Power efficient hearing aid

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5250646A (en) * 1975-10-22 1977-04-22 Fujitsu Ltd Interference evasion system of control memory

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5250646A (en) * 1975-10-22 1977-04-22 Fujitsu Ltd Interference evasion system of control memory

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4790018A (en) * 1987-02-11 1988-12-06 Argosy Electronics Frequency selection circuit for hearing aids
US5321758A (en) * 1989-03-02 1994-06-14 Ensoniq Corporation Power efficient hearing aid

Also Published As

Publication number Publication date
JPS649785B2 (enrdf_load_stackoverflow) 1989-02-20

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