Telephonic communications – Substation or terminal circuitry – Hold circuit
Patent
1989-01-13
1991-03-26
Ng, Jin F.
Telephonic communications
Substation or terminal circuitry
Hold circuit
379162, 379163, H04M 100
Patent
active
050035878
DESCRIPTION:
BRIEF SUMMARY
The present invention relates to a telephone on-hold device.
FIELD OF THE INVENTION
An "on-hold" condition is herein referred to as one where a person making an incoming telephone call is asked to wait whilst the person who answered said call momentarily leaves the telephone, for example, to make investigations to answer questions made by the person making said call and where said first mentioned person is substantially unable to overhear noise adjacent the answered telephone.
In large telephone installations an electronic on-hold device is provided to disconnect the mouthpiece of the answered telephone so that the person making the incoming call may not hear any sound generated adjacent the answered telephone.
In general, simple telephone installations do not comprise means to disengage the mouthpiece of the answered telephone and therefore the person making the incomming call may hear noise occuring adjacent to the answered telephone. It is, however, generally not preferred to allow the person making said call to be able to overhear whilst the person is in an on-hold condition.
Large telephone systems have the disadvantage of being costly and unsuited to home use or small businesses. Also, there are many telephone systems in use which do not have an on-hold facility. Also generally, prior are on-hold devices for telephones do not comprise means to allow the person making the call to gain the attention of the person who answered the call once placed on hold. The person on-hold must therefore wait for the other person to return to answer the telephone or hang up. The former has the disadvantage of waisted time and the latter has the disadvantage that the person on-hold is not able to leave a message. Such disadvantages are overcome by one form of message. Such disadvantages are overcome by one form of the present invention.
SUMMARY OF THE INVENTION
The present invention provides a telephone on-hold device to provide an on-hold facility to a telephone handset or a simple telephone installation.
In accordance with the present invention there is provided a telephone on-hold device for use with a telephone handset having a handpiece with a mouth piece and an ear piece, the telephone on-hold device characterised in that it comprises a switch means located in a housing, the housing being dimensioned to receive at least the mouth piece of the handpiece to actuate the switch means, and an audio generation means having an audio transducer located in the housing and to be adjacent the mouth piece, the switch means being disposed to actuate the audio generation means.
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 an upper perspective view of a telephone on-hold device in accordance with the present invention with a telephone handpiece shown about to be set thereon; and
FIG. 2 is a block circuit diagram of the telephone on-hold device of FIG. 1 .
DESCRIPTION OF THE INVENTION
In FIG. 1 there is shown a telephone on-hold device 10 according to the present invention and comprising a housing 12.
In one form of the invention (as shown) the housing 12 comprises a first recess 14 dimensioned to receive an ear piece 16 of a handpiece 18 of a telephone handset (not shown). The housing 12 also comprises a second recess 20 spaced from the first recess 14 and dimensioned to receive a mouth piece 22 of the handpiece 18.
It is intended that the first recess 14 and the second recess 20 be so disposed relative to each other that the earpiece 16 be receivable by the first recess 14 whilst the mouthpiece is simultaneously receivable by the second recess 20.
The device 10 also comprises a switch means 24 located in the first recess 14 and arranged to be actuated by the earpiece 16. The switch means 24 may conveniently be in the form of a plunger commonly used in telephone handsets.
In FIG. 2 there is shown a block circuit diagram comprising the switch means 24 and an audio generation means 26. The diagram also s
REFERENCES:
patent: 4063045 (1977-12-01), Greischer
patent: 4387274 (1983-06-01), Stein et al.
patent: 4454385 (1984-06-01), Grantland et al.
Augustus Jhancy
Ng Jin F.
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