Portable information terminal having wireless communication device
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorKenji Nishikawa
Life of this patent
Estimating the term…
Abstract
In an information terminal, a coaxial cable connected a radio-circuit-board, which is often placed at a front section of a case, to an external antenna terminal or an antenna placed at a rear section of the case. The terminal having a simple structure prevents a clock signal from leaking to the coaxial cable from a CPU, so that an S/N ratio in receiving can be improved. A cable-groove recessed from a bottom to inside is provided. The coaxial cable between the radio circuit board and the external antenna terminal or the antenna runs through the cable groove, which is covered with a lid. Thus, a clock signal of the CPU can be shielded by the conductive case.
Claims13
A portable information terminal comprising:
- a conductive case in which a cable-leading-out hole is formed at a front section thereof, a cable-leading-in hole is formed at a rear section thereof, and a cable-groove is recessed from a surface thereof to an inside thereof is formed between the cable-leading-in hole and the cable-leading-out hole;
- a radio-circuit-board having an antenna terminal, said radio-circuit-board being disposed at the front section in said case;
- an external antenna terminal disposed at the rear section in said case;
- a cable for coupling said antenna terminal of said radio-circuit-board to said external antenna terminal via the cable-leading-out hole, the cable-groove, and the cable-leading-in hole;
- and
- a lid for covering the cable-leading-out hole, the cable-leading-in hole, and the cable-groove.
A portable information terminal comprising:
- a conductive case in which a cable-leading-out hole is formed at a front section thereof, a cable-leading-in hole is formed at a rear section thereof, and a cable-groove is recessed from a surface thereof to an inside thereof is formed between the cable-leading-in hole and the cable-leading-out hole;
- a radio-circuit-board having an antenna terminal, said radio-circuit board being disposed at the front section in said case;
- an antenna disposed at the rear section in said case;
- a cable for coupling said antenna terminal of said radio-circuit-board to said antenna via the cable-leading-out hole, the cable-groove, and the cable-leading-in hole;
- and
- a lid for covering the cable-leading-out hole, the cable-leading-in hole,
- and the cable-groove.
A portable information terminal comprising:
- a conductive case in which a cable-leading-in hole is formed at a rear section thereof, a recess for accommodating a board is recessed from a surface thereof to an inside thereof, a cable groove is recessed between the recess and the cable-leading-in hole from the surface thereof to the inside thereof;
- an external antenna terminal disposed at a rear section of said case;
- a radio-circuit-board having an antenna, said radio-circuit-board being disposed in the recess;
- a cable for coupling said antenna terminal to said external antenna terminal via the cable groove and the cable-leading-out hole;
- and
- a first lid for covering the cable groove and the cable-leading-in hole.
A portable information terminal comprising:
- a conductive case in which a cable-leading-in hole is formed at a rear section thereof, a recess for accommodating a board is recessed from a surface thereof to an inside thereof, a cable groove is recessed between the recess and the cable-leading-in hole from the surface thereof to the inside thereof;
- an antenna disposed at the rear section of said case;
- a radio-circuit-board having an antenna, said radio-circuit-board being disposed in the recess;
- a cable for coupling said antenna terminal to said antenna via the cable groove and the cable-leading-out hole;
- and
- a first lid for covering the cable groove and the cable-leading-in hole.
Dependencies are inferred from the claim text.