Foldable portable telephone

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

Reexamination Certificate

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Details

C455S575300, C455S575100, C455S575700

Reexamination Certificate

active

07079877

ABSTRACT:
In a foldable portable telephone, a shield box provided within an upper casing is connected via a flexible cable to an output terminal of a transmitting circuit provided within a lower casing, and the shield box is used as an antenna. Thus, compared to the conventional case where a rod antenna is provided at an upper end of the lower casing, variation in gain dependent on a state of the user's hand holding the portable telephone is lessened.

REFERENCES:
patent: 4471493 (1984-09-01), Schober
patent: 4723305 (1988-02-01), Phillips et al.
patent: 4876552 (1989-10-01), Zakman
patent: 4992799 (1991-02-01), Garay
patent: 5335366 (1994-08-01), Daniels
patent: 5335368 (1994-08-01), Tamura
patent: 5561437 (1996-10-01), Phillips et al.
patent: 5649306 (1997-07-01), Vannatta et al.
patent: 5754141 (1998-05-01), Thompson et al.
patent: 5940745 (1999-08-01), Imura
patent: 6014113 (2000-01-01), Orchard et al.
patent: 6204825 (2001-03-01), Wilz
patent: 6252554 (2001-06-01), Isohatala et al.
patent: 6266538 (2001-07-01), Waldron
patent: 6285893 (2001-09-01), Keirinbou
patent: 6292148 (2001-09-01), Matsuura et al.
patent: 6327485 (2001-12-01), Waldron
patent: 6417817 (2002-07-01), Pirila et al.
patent: 6633262 (2003-10-01), Shoji et al.
patent: 2002/0075185 (2002-06-01), Wang
patent: 0 518 526 (1992-12-01), None
patent: 2 327 572 (1999-01-01), None
patent: 04-354425 (1992-12-01), None
patent: 06-216621 (1994-08-01), None
patent: 6-260949 (1994-09-01), None
patent: 08-139522 (1996-05-01), None
patent: 8-172374 (1996-07-01), None
patent: 11-168316 (1999-06-01), None
patent: 11-234162 (1999-08-01), None
patent: 11-312920 (1999-11-01), None
patent: 2000-013133 (2000-01-01), None
patent: 2000-216611 (2000-08-01), None
patent: 2001-102949 (2001-04-01), None
patent: 2001-345882 (2001-12-01), None

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