Title:
PORTABLE INFORMATION TERMINAL
Document Type and Number:
Japanese Patent JP3558023
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To make a portable information terminal thin and small-sized in a small structure at low cost and to secure superior reception sensitivity and reception performance with superior stability.
SOLUTION: The portable information terminal 1 is equipped with an equipment body 2 which has a liquid crystal display part 5 on the top surface and a lid 4, which is coupled turnably with the front end side of the equipment body 2 and covers a data display part 5 of the equipment body 2 by a turning in the closing direction; and the lid 4 contains a circuit board 58 mounted with a planar antenna 60, an amplifier 61, and a receiver 62 for satellite communication, so that the mount surface faces the liquid crystal display part 5 when the lid 4 is fully closed; and the receiver 62, planar antenna 60, and amplifier 61 are arranged in order from the end of the lid 4 on the side of a rotary shaft 3 to the tip side, and a ground layer G, which functions as a ground plate is provided nearly over the entire area of the opposite surface of the circuit board 58 from the mount surface.
Inventors:
Momose Akira
Yasuhiro Momose
Kazumi Matsumoto
Yasuhiro Momose
Kazumi Matsumoto
Application Number:
JP2000259266A
Publication Date:
August 25, 2004
Filing Date:
August 29, 2000
Export Citation:
Assignee:
Seiko Epson Corporation
International Classes:
H05K5/02; H01Q1/08; H01Q1/12; H01Q1/24; H01Q3/04; H01Q13/08; H04M1/02; (IPC1-7): H04M1/02; H01Q1/12; H01Q1/24; H01Q13/08; H05K5/02
Domestic Patent References:
| JP11215022A | ||||
| JP6301446A | ||||
| JP5236397A | ||||
| JP9135108A | ||||
| JP7159193A | ||||
| JP6224621A | ||||
| JP7050505A |
Foreign References:
| WO1999039258A1 |
Attorney, Agent or Firm:
Masahiko Ueyanagi
Osamu Suzawa
Osamu Suzawa