Multifunction earphone-microphone device

Details Multifunction earphone-microphone device Multifunction earphone-microphone device

1998-04-13

2001-04-03

Maung, Nay (Department: 2744)

Telecommunications

Transmitter and receiver at same station

Radiotelephone equipment detail

C455S566000, C455S569200

Reexamination Certificate

active

06212409

ABSTRACT:

BACKGBOUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a multifunction earphone-microphone device for use with a portable cellular phone.
2. Description of the Related Art
An earphone-microphone device disclosed in Unexamined Japanese Patent Publication (kokai) No. Hei-5-91584 has already been known as a conventional sarphone-microphone device for use with a portable cellular phone.
FIG. 3
shows the configuration of a conventional earphone-microphone device. the earphone-microphone device has a four-pole plug
11
b
as an interface section
1
, a microphone
21
and a push switch
23
b
as a display/operation section
2
, and earphone
31
as a receiving section
3
.
FIG. 4
shows a wiring diagram of the earphone-microphone device shown in FIG.
3
. The earphone/microphone device is connected to a portable cellular phone (not shown) by way of a four-electrode plug
11
b
. When the earphone/microphone device is connected to the portable cellular phone, voice entered from a microphone
21
is fed to the portable cellular phone by way of a microphone signal plug
12
. In contrast, received voice is output from an earphone
31
of the earphone-microphone device by way of a received signal plug
13
. Further, a push switch
23
b
is connected to a circuit provided in the portable cellular phone by way of a switch detector plug
18
. Accordingly, the portable cellular phone is capable of detecting the pushing action of the push switch. Further, the origination of a call to, or receipt of an incoming call from, a specific called party can be effected through use of the push switch
23
b
. Reference numeral
17
designates a ground terminal.
However, the aforementioned conventional earphone-microphone suffers several problems. For example, when the portable cellular phone is kept in a bag, the user cannot know a calling party without seeing a liquid crystal display (LCD) of a portable cellular phone every time there is an arrival of an incoming call. Further, when a vibrator is set to an ON state, the user can not realize the arrival of an incoming call unless he carries the portable cellular phone in his pocket or the like.
SUMMARY OF THE INVENTION
The present invention is intended to solve the foregoing problem, and the object of the invention is to enable a multifunction earphone-microphone to perform most typical functions of a portable cellular phone by retrieving phone-number-related data stored in the cellular phone and displaying the thus-retrieved phone-number-related data onto a display/operation section at the time of origination of a call, or by actuation of a vibrator provided in thei operation section at the time of arrival of an incoming call.
In order to accomplish the foregoing object, there is provided a multifunction earphone-microphone device comprising:
an interface to be connected to a portable cellular phone; and
a display/operation section including a rotary jog dial, wherein
phone-number-related data sets, each including the name and telephone number of a called party and the like stored in the portable cellular phone beforehand, are subsequently displayed on the display/operation section when the rotary jog dial is rotated while the interface is connected to the portable cellular phone. Further, when the portable cellular phone receives an incoming call, a vibrator may be actuated to indicate the incoming call.
According to the present invention, since a phone-number-related data set of a called party is displayed on the display/operation section at the time of origination of a call, it is possible to make a call by only pressing the rotary jog dial. Furtherr when there is an arrival of an incoming call, the user can know the arrival of a call from vibration of the vibrator of the display/operation section.


REFERENCES:
patent: 5487182 (1996-01-01), Hasson
patent: 5703947 (1997-12-01), Hino et al.
patent: 5832390 (1998-11-01), Irvin
patent: 475 297 A2 (1992-04-01), None
patent: 5-91584 (1993-04-01), None
Patent Abstracts of Japan, Pulbication No. 05091584, Date of Publication Apr. 9, 1993.
WPI Abstract of JP8317034.
WPI Abstract of JP9149460.
WO 97/29582, International Publication Date Aug. 14, 1997.

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