Compact cellular phone

Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail

Reexamination Certificate

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Details

C455S575100, C455S575300, C455S575500, C455S575700

Reexamination Certificate

active

07031744

ABSTRACT:
A compact cellular phone with a foldable configuration and two planar antennas having outward directivities are provided inside the compact cellular phone in the foldable configuration. An interval between the two planar antennas provided to a pair of housings is equal to or wider than a width of a human palm in a state in which the compact cellular phone is open. The two planar antennas are planar inverse F-type antennas or patch antennas and impedance around each of the two planar antennas is measured. Then, one of the two planar antennas, which has a preferred transmission characteristic, is selected and used.

REFERENCES:
patent: 4992799 (1991-02-01), Garay
patent: 5337061 (1994-08-01), Pye et al.
patent: 5451965 (1995-09-01), Matsumoto
patent: 5486836 (1996-01-01), Kuffner et al.
patent: 5649306 (1997-07-01), Vannatta et al.
patent: 5752204 (1998-05-01), Epperson et al.
patent: 5905467 (1999-05-01), Narayanaswamy et al.
patent: 6005525 (1999-12-01), Kivela
patent: 6011519 (2000-01-01), Sadler et al.
patent: 6442400 (2002-08-01), Ying et al.
patent: 6806835 (2004-10-01), Iwai et al.
patent: 0 508 567 (1992-10-01), None
patent: 0 871 236 (1998-10-01), None
patent: 2-13842 (1990-04-01), None
patent: H03-280625 (1991-12-01), None
patent: H06-112880 (1994-04-01), None
patent: H11-177485 (1999-07-01), None
patent: 11-220418 (1999-08-01), None
patent: 2000-507781 (2000-06-01), None
patent: 2000-261532 (2000-09-01), None
patent: WO 98/01919 (1998-01-01), None
patent: WO 00/35124 (2000-06-01), None
patent: WO 00/67342 (2000-11-01), None
Patent Abstracts of Japan, vol. 1999, No. 12, Oct. 29, 1999.
Patent Abstracts of Japan, vol. 2000, No. 5, Sep. 14, 2000.
Patent Abstracts of Japan, vol. 16, No. 104 (D-1178), Mar. 13, 1992.

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