Portable telephone

Details Portable telephone Portable telephone

1999-03-19

2001-06-19

Trost, William (Department: 2683)

Telecommunications

Transmitter and receiver at same station

Having particular housing or support of a transceiver

C455S090300, C455S550100, C455S575100, C379S433020, CD14S137000, CD14S13800C

Reexamination Certificate

active

06249672

ABSTRACT:

BACKGROUND
Portable telephones, such as cellular telephones, must have a way of activating and deactivating the telephone. It is also desirable to make the telephone as small as possible. However, a certain distance between the earpiece and mouthpiece is useful to enable the telephone to extend from the user's ear to the user's mouth. Telephones, such as the Motorola flip-phone series, have conventionally pivoted into the open position to extend this distance. In addition, the telephone has often used the opening operation to control answering the call, and conversely used the closing operation to control ending the call.
Other systems are known which use a sliding portion. For instance, the Qualcomm sliding ear piece telephone allows the ear piece to extend. When the ear piece is down, however, the telephone is totally locked. It cannot make or receive calls, nor use any of the keyboard functions.
SUMMARY
The present system defines a new way of packaging cellular electronics. This system includes an elliptically-shaped telephone which has one electronics module that slides relative to the other electronics module to compress the cellular telephone's overall outer size. The device includes two keyboards, including a first keyboard which is physically blocked by the compressing of the telephone, and a second keyboard which is still accessible after the compressing. Hence, the telephone is still usable even when compressed. It can be extended to answer and to provide full functionality.
A spring-loaded mechanism biases the modules apart. The release button releases the modules and hence enables answering an incoming call. Conversely, compressing the telephone hangs up a call in progress.


REFERENCES:
patent: D. 291990 (1987-09-01), Lee
patent: D. 434403 (2000-11-01), Jaynes et al.
patent: 5151946 (1992-09-01), Martensson
patent: 5436954 (1995-07-01), Nishiyama et al.
patent: 5444866 (1995-08-01), Cykiert
patent: 5450619 (1995-09-01), Meada
patent: 5818701 (1998-10-01), Shindo
patent: 5898758 (1999-04-01), Rosenberg
patent: 5933778 (2000-11-01), Buhrman et al.
patent: 5956625 (1999-09-01), Hansen et al.
patent: 6006103 (1999-12-01), Van Lerberghe
patent: 0 647 037 A1 (1995-04-01), None
patent: 0 871 148 A2 (1998-10-01), None
patent: 0 881 810 A1 (1998-12-01), None
patent: 98/16047 (1998-04-01), None
patent: 98/27704 (1998-06-01), None
patent: 99/27700 (1999-06-01), None

Affiliated with

Also associated with

Rating

Portable telephone does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Portable telephone, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Portable telephone will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2497398