Portable terminal device

Details Portable terminal device Portable terminal device

2011-01-25

2011-01-25

West, Lewis G (Department: 2618)

Telecommunications

Transmitter and receiver at same station

Radiotelephone equipment detail

C455S575100, C455S575300, C381S365000, C379S433030

Reexamination Certificate

active

07877125

ABSTRACT:
A portable terminal device can extrapolate the position of a sound source in the thicknesswise direction regardless of the use style. A slide type portable terminal has an upper casing, a lower casing, and a coupling part that couples the casings in such a way that their positional relation is changeable. The upper casing has a plurality of first microphones, and the lower casing has a second microphone. In a handhold style, one of the first microphones and the second microphone are lined in the thicknesswise direction of the cellular phone. As the upper casing is slid, the other one of the first microphones and the second microphone are lined in the thicknesswise direction of the cellular phone. The position of a sound source in the thicknesswise direction can be extrapolated from output signals of a formed microphone array in the thicknesswise direction.

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