JPH0242267B2 - - Google Patents

Info

Publication number
JPH0242267B2
JPH0242267B2 JP59030844A JP3084484A JPH0242267B2 JP H0242267 B2 JPH0242267 B2 JP H0242267B2 JP 59030844 A JP59030844 A JP 59030844A JP 3084484 A JP3084484 A JP 3084484A JP H0242267 B2 JPH0242267 B2 JP H0242267B2
Authority
JP
Japan
Prior art keywords
volume
speaker
call
variable resistor
pass filter
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
JP59030844A
Other languages
English (en)
Japanese (ja)
Other versions
JPS60174556A (ja
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 filed Critical
Priority to JP59030844A priority Critical patent/JPS60174556A/ja
Publication of JPS60174556A publication Critical patent/JPS60174556A/ja
Publication of JPH0242267B2 publication Critical patent/JPH0242267B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/60—Substation equipment, e.g. for use by subscribers including speech amplifiers
    • H04M1/6033—Substation equipment, e.g. for use by subscribers including speech amplifiers for providing handsfree use or a loudspeaker mode in telephone sets

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
JP59030844A 1984-02-21 1984-02-21 電話装置 Granted JPS60174556A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59030844A JPS60174556A (ja) 1984-02-21 1984-02-21 電話装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59030844A JPS60174556A (ja) 1984-02-21 1984-02-21 電話装置

Publications (2)

Publication Number Publication Date
JPS60174556A JPS60174556A (ja) 1985-09-07
JPH0242267B2 true JPH0242267B2 (enrdf_load_stackoverflow) 1990-09-21

Family

ID=12315005

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59030844A Granted JPS60174556A (ja) 1984-02-21 1984-02-21 電話装置

Country Status (1)

Country Link
JP (1) JPS60174556A (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0783397B2 (ja) * 1985-09-30 1995-09-06 株式会社東芝 電話装置

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS531165B2 (enrdf_load_stackoverflow) * 1974-04-08 1978-01-17

Also Published As

Publication number Publication date
JPS60174556A (ja) 1985-09-07

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term