Portable telephone set with an earphone

Details Portable telephone set with an earphone Portable telephone set with an earphone

1994-04-15

1996-04-23

Hofsass, Jeffery

Telephonic communications

Terminal

Housing or housing component

379434, H04M 100

Patent

active

055111203

ABSTRACT:
In a portable telephone set, an earphone cord is a flat cord. Therefore, it is difficult for the flat cord to be twisted, so that the tangling of the flat cord is avoided. The motion of the flat cord in which the flat cord is pulled out of a main body in operation and contained therein in non-operation is conveyed to an antenna, so that the antenna is extended out of the main body in operation, and the antenna is contained in the main body in non-operation. In the same manner, the motion of the antenna is conveyed to the flat cord.

REFERENCES:
patent: 2521226 (1950-09-01), Keller
patent: 4646987 (1987-03-01), Peterson
C. Hill; "Retractable Portable Antenna"; Motorola Technical Developments, vol. 12, Apr. 1991; p. 35.

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