CA2093491A1 - Key telephone system capable of regulating volume of handset - Google Patents

Key telephone system capable of regulating volume of handset

Info

Publication number
CA2093491A1
CA2093491A1 CA2093491A CA2093491A CA2093491A1 CA 2093491 A1 CA2093491 A1 CA 2093491A1 CA 2093491 A CA2093491 A CA 2093491A CA 2093491 A CA2093491 A CA 2093491A CA 2093491 A1 CA2093491 A1 CA 2093491A1
Authority
CA
Canada
Prior art keywords
default value
handset
new
volume
telephone
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
CA2093491A
Other languages
French (fr)
Other versions
CA2093491C (en
Inventor
Yoshihiro Kawauchi
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.)
Toshiba Corp
Original Assignee
Individual
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=13862230&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA2093491(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Individual filed Critical Individual
Publication of CA2093491A1 publication Critical patent/CA2093491A1/en
Application granted granted Critical
Publication of CA2093491C publication Critical patent/CA2093491C/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/002—Arrangements for interconnection not involving centralised switching with subscriber controlled access to a line, i.e. key telephone systems

Abstract

A key telephone system has a main service unit including at least a main controller, a terminal interface and an office line interface, and a telephone terminal which is connected to the terminal interface.
The telephone terminal includes a handset for transmitting and receiving a voice or a speech signal between a user and the other user, and a speech circuit for regulating a volume of the handset. The system comprises default value storage element for storing a default value which is a control value for setting a volume of each of the handset to a desired amount; change input element for inputting a new default value in order to change the default value each of the handset; default value renewal element for rewriting the default value into said new default value by selecting an input default value from the default value storage element when the default value of each of the handset is changed and input through the change input element; and renewal default value setting element for fixing the new default value as a reference value of the handset itself at completing a telephone call when the default value is changed to the new default value in each of the handset, and enabling a telephone call to a desired volume by using the new default value in a next chance of a telephone call.
CA002093491A 1992-04-07 1993-04-06 Key telephone system capable of regulating volume of handset Expired - Fee Related CA2093491C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP85561/1992 1992-04-07
JP08556192A JP3257022B2 (en) 1992-04-07 1992-04-07 Key telephone equipment

Publications (2)

Publication Number Publication Date
CA2093491A1 true CA2093491A1 (en) 1993-10-08
CA2093491C CA2093491C (en) 1996-09-10

Family

ID=13862230

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002093491A Expired - Fee Related CA2093491C (en) 1992-04-07 1993-04-06 Key telephone system capable of regulating volume of handset

Country Status (3)

Country Link
US (1) US5388152A (en)
JP (1) JP3257022B2 (en)
CA (1) CA2093491C (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2887054B2 (en) * 1993-10-15 1999-04-26 キヤノン株式会社 Communication device
JP3727431B2 (en) * 1995-12-08 2005-12-14 シャープ株式会社 Transmitter, telephone using it
US5737389A (en) * 1995-12-18 1998-04-07 At&T Corp. Technique for determining a compression ratio for use in processing audio signals within a telecommunications system
KR100383545B1 (en) * 1999-02-22 2003-05-12 산요 덴키 가부시키가이샤 Telephone device mounted in vehicle
KR100343776B1 (en) * 1999-12-03 2002-07-20 한국전자통신연구원 Apparatus and method for volume control of the ring signal and/or input speech following the background noise pressure level in digital telephone
JP4213460B2 (en) * 2002-12-16 2009-01-21 三菱電機株式会社 Communication device grouping device, communication device grouping method, and communication device grouping program
JP5794621B2 (en) * 2011-06-23 2015-10-14 Ｎｅｃプラットフォームズ株式会社 Button telephone apparatus and volume adjustment method thereof

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5212722A (en) * 1989-07-24 1993-05-18 Nec Corporation Hands-free telephone having a handset volume attenuator for controlling speaker volume in a hands-free adaptor
US5199064A (en) * 1990-12-03 1993-03-30 Advanced Micro Devices, Inc. Fully-integrated telephone unit

Also Published As

Publication number Publication date
US5388152A (en) 1995-02-07
CA2093491C (en) 1996-09-10
JPH05292166A (en) 1993-11-05
JP3257022B2 (en) 2002-02-18

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Legal Events

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