GB2308273A - Speaker phone - Google Patents

Speaker phone Download PDF

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Publication number
GB2308273A
GB2308273A GB9626076A GB9626076A GB2308273A GB 2308273 A GB2308273 A GB 2308273A GB 9626076 A GB9626076 A GB 9626076A GB 9626076 A GB9626076 A GB 9626076A GB 2308273 A GB2308273 A GB 2308273A
Authority
GB
Grant status
Application
Patent type
Prior art keywords
key
speaker
phone
unit
control
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
GB9626076A
Other versions
GB2308273B (en )
GB9626076D0 (en )
Inventor
Sung-Hyun Kim
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.)
Samsung Electronics Co Ltd
Original Assignee
Samsung Electronics 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

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers; Analogous equipment at exchanges
    • H04M1/60Substation equipment, e.g. for use by subscribers; Analogous equipment at exchanges including speech amplifiers
    • H04M1/6033Substation equipment, e.g. for use by subscribers; Analogous equipment at exchanges including speech amplifiers for providing handsfree use or a loudspeaker mode in telephone sets

Description

METHOD OF AUTOMATICALLY SHUTTING OFF A SPEAKER PHONE Background to the <RTI>Invent ion</RTI> This invention relates to a method of operating a speaker phone.

Usually, in a speaker phone the user can make a call by dialling after operating a speaker phone key or an on-hook dial key. He must operate the speaker phone key or on-hook dial key again to cut off the communications line after finishing the call.

This is inconvenient since the user must manually operate the speaker phone key or on-hook dial key again to cut off the communications line if the line is busy or the user finishes the call.

Besides, the telephone call is continually metered and charged if the user does not push the speaker phone key or on-hook dial key after finishing the call.

Accordingly, an object of the present invention is to provide an improved method of operating a speaker phone talk.

Summary of the Invention To achieve the object of the present invention, there is provided a method of operating a speaker phone comprising: initiating a speaker phone talk mode by establishing a communications loop when a speaker phone key or on-hook dial key is operated; and terminating the communications loop if a tone signal is detected during the speaker phone talk mode.

Preferably, the tone signal is a busy tone.

The method may further comprise terminating the communications loop if the speaker phone key or on-hook dial key is operated again without the tone having been detected.

The method may also comprise performing a corresponding function if a key other than the speaker phone key or onhook dial key is operated without the tone having been detected.

Brief Description of the Drawings The present invention will now be described by way of example with reference to the accompanying drawings in which: Fig 1 is a block diagram of a telephone having a speaker phone; and Fig 2 is a control flow chart illustrating the automatic cutting off of a communications line according to the present invention.

Detailed Description of the Preferred Embodiment As shown in Fig 1, a keypad 10 generates dial key, on-hook dial key and speaker phone key signals and includes a display unit such as a liquid crystal display or a light emitting diode. A control unit 12 controls the overall operation of the telephone. A ring detecting unit 14, which is connected to a telephone line, detects ring signals from the telephone line. A tone detecting unit 16, which is connected to the telephone line, detects various tone signals from the telephone line and supplies them to the control unit 12 after having been converted into digital data.

A talking control unit 18 connects or cuts off a communications loop of the telephone line under the control of the control unit 12. A talking circuit unit 20 connects the telephone line to a speaker phone 26 under the control of the control unit 12. The speaker phone 26 is constructed with a speaker 22 and a microphone 26. The speaker 22 outputs a voice signal received through the speaker phone 26. The microphone 26 sends out a voice signal to the talking circuit unit 20 while the user converses with the other person through the speaker phone 26.

As shown in Fig 2, the control unit 12 examines whether any key data is input from the keypad 10 in step 101. If there is any key data input, the control unit 12 will examine whether the input key data is the on-hook dial key or speaker phone key. If not, the control unit 12 will perform the function according to the input key data in step 103.

On the other hand, if the input key data is the on-hook dial key or speaker phone key data, the control unit 12 will control the talking control unit 18 so as to turn on the communications loop and also control the talking circuit unit 20 so as to drive the speaker phone talk mode in step 104. The speaker phone talk mode is driven in such a manner that a telephone number is dialled after the speaker phone key or on-hook dial key data is input in an idle state, or the communication is continually performed when the speaker phone key or on-hook dial key data is input in a talk mode.

While the dialling or talking is going on, the control unit 12 examines whether a busy tone signal is detected by the tone detecting unit 16 in step 105. The busy tone occurs when the called party is engaged in a talk mode when the caller dials, or when one of them hangs up the phone. If the busy tone is detected in the step 105, the control unit 12 will control the talking control unit 18 so as to shut off the communications loop in step 106. The control unit 12 controls the talking circuit unit 20 so as to cancel the speaker phone talk by cutting off the speaker phone communications line in step 107.

Unless the busy tone signal is detected in the step 105, the control unit 12 will examine whether any key data is input from the keypad 10 in step 108. If there is no input key data, the procedure returns to the step 105. If there is any key data input in the step 108, the control unit 12 will examine whether the input key data is the on-hook dial key or speaker phone key data in step 109. If the key data is neither the on-hook dial key nor the speaker phone key data, the control unit 12 will perform the function of the input key in step 110. If the input key data is either the on-hook dial key or speaker phone key data, the control unit 12 will control the talking control unit 18 so as to shut off the communications loop in step 106. The control unit 12 controls the talking circuit unit 20 so as to cancel the speaker phone talk by cutting off the speaker phone communications line.

As described above, since the telephone of the present invention cancels the speaker phone talk by shutting off the speaker phone communications loop when the busy tone is detected while talking or after dialling in the speaker phone talk mode, it is unnecessary for the user to operate the speaker phone key or on-hook dial key again. Besides, an unexpected charge can be prevented even though the user forgets to operate the speaker phone key or on-hook dial key again after finishing a call.

Claims (5)

CLAIMS:
1. A method of operating a speaker phone comprising: initiating a speaker phone talk mode by establishing a communications loop when a speaker phone key or on-hook dial key is operated; and terminating the communications loop if a tone signal is detected during the speaker phone talk mode.
2. A method according to claim 1, in which the tone signal is a busy tone.
3. A method according to claim 1 or claim 2, further comprising terminating the communications loop if the speaker phone key or on-hook dial key is operated again without the tone having been detected.
4. A method according to any preceding claim, further comprising performing a corresponding function if a key other than the speaker phone key or on-hook dial key is operated without the tone having been detected.
5. A method of operating a speaker phone substantially as described with reference to the accompanying drawings.
GB9626076A 1995-12-15 1996-12-16 Method of automatically shutting off a speaker phone Expired - Fee Related GB2308273B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR19950050719A KR970056534A (en) 1995-12-15 SHUT-OFF way speakerphone call is a telephone terminal device

Publications (3)

Publication Number Publication Date
GB9626076D0 GB9626076D0 (en) 1997-02-05
GB2308273A true true GB2308273A (en) 1997-06-18
GB2308273B GB2308273B (en) 1998-02-18

Family

ID=19440614

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9626076A Expired - Fee Related GB2308273B (en) 1995-12-15 1996-12-16 Method of automatically shutting off a speaker phone

Country Status (3)

Country Link
JP (1) JPH09181818A (en)
CN (1) CN1084997C (en)
GB (1) GB2308273B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100508529C (en) 2006-12-07 2009-07-01 西北工业大学 An automatic hand-up device of telephone and its control method
CN103167203A (en) * 2013-03-22 2013-06-19 汉峰世纪科技(北京)有限公司 Method and system for automatically hanging up intelligent telephone

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4496797A (en) * 1983-09-29 1985-01-29 At&T Technologies, Inc. Circuit for automatically connecting and disconnecting a speakerphone to a telephone line
US4903291A (en) * 1986-10-09 1990-02-20 Sanyo Electric Co., Ltd. Automatic on-hook arrangement
US5155764A (en) * 1989-07-18 1992-10-13 Alcatel Business Systems Telephone set with on-hook line seizure
US5432835A (en) * 1992-09-30 1995-07-11 Hashimoto Corporation Telephone device for amplifying opposite party's voice after user's telephone is placed on-hook

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4496797A (en) * 1983-09-29 1985-01-29 At&T Technologies, Inc. Circuit for automatically connecting and disconnecting a speakerphone to a telephone line
US4903291A (en) * 1986-10-09 1990-02-20 Sanyo Electric Co., Ltd. Automatic on-hook arrangement
US5155764A (en) * 1989-07-18 1992-10-13 Alcatel Business Systems Telephone set with on-hook line seizure
US5432835A (en) * 1992-09-30 1995-07-11 Hashimoto Corporation Telephone device for amplifying opposite party's voice after user's telephone is placed on-hook

Also Published As

Publication number Publication date Type
CN1084997C (en) 2002-05-15 grant
CN1171001A (en) 1998-01-21 application
GB2308273B (en) 1998-02-18 grant
JPH09181818A (en) 1997-07-11 application
GB9626076D0 (en) 1997-02-05 grant

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20091216