WO1995017068A9

WO1995017068A9 - Handsfree cordless telephone

Info

Publication number: WO1995017068A9
Application number: PCT/CA1994/000723
Authority: WO
Filing date: 1994-12-14
Publication date: 1995-08-17

Abstract

The cordless telephone is a device consisting of two units as follows: A) a base unit physically connected to the public utility (telecommunications network) with the ability to relay electronic signals from a handset not physically connected to the public utility; B) a handset unit with the capability to send and receive electronic signals to the base unit. The characteristics of this device allow the holder of the handset to move about without the inconvenience of being physically attached to the public utility telecommunications netwok while being in communication. Also, the cordless telephone has the capability of remaining in a standby mode, i.e. waiting for or placing telephone calls.

Description

DESCRIPTION

HANDSFREE CORDLESS TELEPHONE

The owners of cordless telephones have an infi nite number of uses for this device. The advantage of not being in physical contact with the public telecommunications utility i.e. no physical conductors required to send electronic signals to the handset (see Diagram A). This device is used by people i n domestic, commercial and industrial uses every day. It must be understood that cordless telephones have range limitations. There are a number of reasons why, i.e. Canadian communication laws (C.R.T.C. ) have placed limitations on the output of the base/handset units, quality and technology of the device and the environment in which the device is being utilized.

However convenient the freedom of this cordless device is, a major draw back is the need to hold the handset unit whi le in use. This inhi bits the user from using both hands in various activities the devise has enabled the user to perform because of the cordless advantage.

The present invention wil l permit freedom of movement and hands free use of the devise while connected to the public uti lites communications network. The advantages of these freedoms can be readily appreciated, and are infinite.

The present cordless telephones, i.e. cordless telephones al ready in use, and future manufactured units, can possess the great advantage of hands free use.

SUBSTITUTE SHEET This may be achieved by retrofitting existi ng cordless telephones or adding to the manufacturi ng process of unbui lt cordless telephones, a component known as a stereo jack (see Diagram C).

This component can be utilized to divert electonic si gnals from the send (microphone) and listen (speaker) ci rcuits i n the handset to a headset which has both microphone and speaker (see Diagram B). The handset can then be attached by a cl ip on the opposite side (or back) of the keypad (see Diagram D), thus freeing the hand that is now used to hol d the handset i n the proper position whi le the user is conversing on the cordless telephone.

The jack described in Diagram C has the function of enabling the cordless telephone to be used with or without the headset. When the male part of the jack which is connected to the headset is inserted into the female part of the jack (which is integrated i nto the handset) the handset microphone and speaker become nonfunctional (i.e. ci rcuit is broken to both ) thus the speaker and microphone i n the headset to become activiated. When the headset jack (male) is removed from the female recepticle i n the handset then the microphone and speaker are reconnected to enable the user to use the handset as originally desi gned. See Diagram C for the addition of headset to handset ci rcuit.

The addition of the handsfree function ( headset) of the cordless telephone requi res no new power, as the headset uses the same source of power as the handset.

Attachment of the handset to the user for hands free mode wi ll include in

SUBSTITUTE SHEET retrofitting and in new manufacturing, a clip (see Diagram D) on the reverse side of the keypad of the handset will enable the user to fasten the handset to a belt worn about the waist.

It must be noted that the jack described in the specification may, in retrofitting or in new manufacturing take a different style, size or form, but remains identical in its function of connecting and disconnecting the listen and talk circuits herein described.

In retrofitting or in new manufacturing, a clip for the attachment of the handset to the beit enabling hands free operation (see Diagram D), will have to be glued or fastened by other suitable means. This will vary depending on the unit being retrofitted.

SUBSTITUTE SHEET DESCRIPTION OF DRAWINGS

FIGURE 1 STEREO JACK NUMBER 1 ON THE DRAWING IS _τo GROUND. NUMBER 2 IS CONNECTED TO THE HANDSET MICROPHONE CIRCUIT.NUMBER 3 IS THE HEADSET MICROPHONE CIRCUIT. NUMBER 4 IS THE HANDSET SPEAKER CIRCUIT. NUMBER 5 IS THE CIRCUIT TO THE HEADSET.

FIGURE 2 NUMBER 6 IS A TYPICAL HANDSET AND NUMBER 7 IS THE BASE UNIT THAT IS THE CONNECTION TO THE PUBLIC SYSTEM.

FIGURE 3 NUMBER 8 IS THE HANDSET WITH THE JACK INSTALLED. NUMBER 9 IS THE HEADSET CONNECTED TO THE HANDSET.

FIGURE 4 NUMBER 10 IS A REAR VIEW OF THE HANDSET WITH A CLIP TO BE USED TO HOLD THE HANDSET TO A BELT OR OTHER SUITABLE LOCATION.

SUBSTITUTE SHEET

Claims

CLAIMSThe embodiments of this invention in which an exclusive property or priviledge is claimed are defined as follows:

1. The cordless telephone may be utilized while in communication through public utility telecommunications, i.e. Bell Canada, with another party hands free.

2. Freedom of movement while conversing on the cordless telephone.

3. The ability to retrofit cordless telephones already in domestic industrial and commercial use by means of the addition of the jack herein described, comprising of the male and female parts and also including the fitting of the clip to the handset enabling attachment to the belt worn about the waist.

4. New manufacturing process including a jack herein described, comprising of the male and female parts connected to the handset circuitry also included in new manufacturing a clip enabling the handset to be attached to a belt worn about the waist.

SUBSTITUTE SHEET