Portable radio device

• US 6,725,070 B2
• Filed: 08/02/2001
• Issued: 04/20/2004
• Est. Priority Date: 08/02/2000
• Status: Expired due to Fees

• Current Assignee: NEC Corporation
• Original Assignee: NEC Corporation
• Inventors: Kuroda, Mitsuru
• Primary Examiner(s): Trost, William
• Assistant Examiner(s): Ferguson, Keith
• Application Number:
  US09/921,519
• Publication Number:
  US 20020019252A1
• Time in Patent Office: 992 Days
• Field of Search: 455/575.7, 455/575.1, 455/575.5, 455/550.1, 455/556.1, 455/556.2, 455/90.1, 455/90.2, 455/90.3, 455/347, 455/517, 455/422.1, 455/403, 455/552.1, 455/128, 343/702, 343/745, 343/749, 343/872, 343/878, 379/433.01, 379/428.01, D14/138, D14/155
• US Class Current: 455/575.1
• CPC Class Codes: H04B 1/1009 Placing the antenna at a place where the noise level is low and using a noise-free transmission line between the antenna and the receivers screened aerials H01Q7/04; feeders for aerials H01Q9/00
• CPC Class Codes: H04B 1/3833 Hand-held transceivers

Abstract

A portable radio device which effectively prevents the property of transmission of radio waves from being degraded due to the user'"'"'s body, is disclosed. A housing of the portable radio device has a lower end portion shaped to protrude from the major surface of the housing and taper down towards the lower end of the housing. An antenna is provided within the lower end portion.

Claims

1. A portable radio device allowing radio communication through an antenna, comprising:

an upper housing having a major surface of the portable radio device and a first lower end portion shaped to protrude from the major surface and taper down towards a lower end of the portable radio device; and

a lower housing having a back surface of the portable radio device and a second lower end portion shaped to taper down towards the lower end of the portable radio device,

wherein the antenna is provided within the first and second lower end portions.

2. The portable radio device according to claim 1, wherein a speaker and a microphone used for telephone conversation are provided on the major surface, wherein the microphone is provided on the major surface at a position higher than the first lower end portion.

3. The portable radio device according to claim 2, wherein a center portion of the first lower end portion corresponding to the microphone is cut away to form a plane portion.

4. The portable radio device according to claim 3, wherein the plane portion is flush with the major surface provided with the microphone.