Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail
Reexamination Certificate
1999-05-11
2001-07-31
Maung, Nay (Department: 2744)
Telecommunications
Transmitter and receiver at same station
Radiotelephone equipment detail
C455S090300, C455S566000, C455S575100
Reexamination Certificate
active
06269259
ABSTRACT:
BACKGROUND OF THE INVENTION
(1) Field of the Invention
The invention relates to a receiver set for desktop and mobile phones, and more particularly to a receiver set which can be removed from a handset or a mobile phone set to perform as a conventional earphone.
(2) Description of the Prior Art
A telephone set, either a convention-style phone or a cordless mobile phone, generally has a speaker and a receiver to be integrated into a handset. While using the handset of a telephone to communicate with another party, a user needs to move the speaker toward the mouth and to adjust the receiver close to the ear. Though such type of the conventional handsets including the speaker at one end and a receiver at another end are widely accepted for desktop phones and mobile phones, yet it is still inconvenient to those who need to use both hands on another tasks while phoning. Aforesaid tasks include driving, typewriting, computer key-in, and so on. To improve the conventional handset, some prior art proposed to add an accessory to the back of the receiver end for resting the handset upon user's shoulder so as to free both hands from gripping. Such an improved handset is usually seen in a modem office. However, the improved handset generally has two major disadvantages as follows:
1. The user needs to slant his head and raise his shoulder so that the handset can be firmly held in between. However, such holding will restrict mobility of the user, and the phoning time may not be prolonged.
2. The improved handset can't be applied to most mobile phones, which have compact bodies.
Another improvement on the conventional handset relates to a headset with a earphone and a microphone. Such a headset, which is usually used by an operator and/or a professional in broadcasting fields, provides its user with the talking convenience and with both hands free from gripping. However, the headset is suitable only to professionals, not to ordinary people in an office. It is obvious that wearing the headset all day long will definitely hinder the ordinary tasks and thus can't be accepted by most people anyway.
SUMMARY OF THE INVENTION
Accordingly, to improve aforesaid disadvantages of the conventional handsets or headsets, the present invention assigns a removable receiver set to the conventional or mobile phone set. The receiver set includes an extendable ear hook and an extendable microphone. While preparing the receiver set for application, the user may take the receiver, pull out the ear hook, hang the ear hook to user's ear, and then pull out the microphone for talking. While storing the receiver set, the user may pull back the ear hook and the microphone, and reposition them back to the handset or the mobile phone set as an ordinary receiver set. By providing the receiver set of the present invention, disadvantages of the conventional phone sets or the mobile phones can be waived.
REFERENCES:
patent: 5724667 (1998-03-01), Furuno
patent: 5943627 (1999-08-01), Kim et al.
patent: 5983100 (1999-11-01), Johansson et al.
patent: 5991637 (1999-11-01), Mack, II et al.
patent: 5991645 (1999-11-01), Yuen et al.
patent: 6085112 (2000-07-01), Kleinschmidt et al.
patent: 6101402 (2000-08-01), Bartha et al.
Maung Nay
Schneck Thomas
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