TELEPHONE SANS FIL "MAINS LIBRES"

HANDS FREE USE OF CORDLESS TELEPHONE

Abrégé anglais

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 network 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.

Revendications

CLAIMS
The embodiments of this invention in which an exclusive property or priviledge
is claimed are defined as follows:
A. The cordless telephone may be utilized while in communication through
public utility telecommunications, i.e. Bell Canada, with another party
hands free.
B. Freedom of movement while conversing on the cordless telephone.
C. 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.
D. New manufacturing process including a jack herein described, comprising
of the male and female parts connected to the handset ci rcuitry also
included in new manufacturing a clip enabling the handset to be attached
to a belt worn about the waist.

Description

~1~ 1822
SPECIFICATION
The present invention relates to cordless telephones.
The owners of cordless telephones have an infinite 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
in 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 drawback is
the need to hold the handset unit while in use. This inhibits 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 will permit freedom of movement and hands free use of the
devise while connected to the public utilites communications network. The
advantages of these freedoms can be readily appreciated, and are infinite.
The present cordless telephones, i.e. cordless telephones already in use, and
future manufactured units, can possess the great advantage of hands free use.

21111~2
This may be achieved by retrofitting existing cordless telephones or adding to
the manufacturing process of unbuilt cordless telephones, a component known as
a stereo jack (see Diagram C).
This component can be utilized to divert electonic signals from the send
(microphone) and listen (speaker) circuits in the handset to a headset which has
both microphone and speaker (see Diagram B). The handset can then be attached
by a clip on the opposite side (or back) of the keypad (see Diagram D), thus
freeing the hand that is now used to hold the handset in the proper position
while 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 into the handset) the handset microphone and speaker become
nonfunctional (i.e. circuit is broken to both) thus the speaker and microphone
in the headset to become activiated. When the headset jack (male) is removed
from the female recepticle in the handset then the microphone and speaker are
reconnected to enable the user to use the handset as originally designed. See
Diagram C for the addition of headset to handset circuit.
The addition of the handsfree function (headset) of the cordless telephone
requires no new power, as the headset uses the same source of power as the
handset.

`- 21~1~2~ -
Attachment of the handset to the user for hands free mode will include in
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 belt 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.

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