Portable wireless device

• US 6,405,064 B1
• Filed: 07/30/1999
• Issued: 06/11/2002
• Est. Priority Date: 01/14/1999
• Status: Expired due to Fees

• Current Assignee: Mitsubishi Denki Kabushiki Kaisha (Mitsubishi Electric Corporation)
• Original Assignee: Mitsubishi Denki Kabushiki Kaisha (Mitsubishi Electric Corporation)
• Inventors: Endo, Tsutomu, Fukasawa, Toru, Chiba, Isamu
• Primary Examiner(s): Urban, Edward F.
• Assistant Examiner(s): Gary, Erika A.
• Application Number:
  US09/364,043
• Time in Patent Office: 1,047 Days
• Field of Search: 455/575, 455/550, 455/562, 455/90, 343/720, 343/702, 343/878, 343/880, 343/888, 343/889, 343/901, D14/343, D14/188, D14/230, D14/240, D14/248, D14/137, D14/138, D14/139, 379/428.01, 379/433.01, 379/433.11, 379/437
• US Class Current: 455/575.7
• CPC Class Codes: H01Q 1/084 Pivotable antennas
• CPC Class Codes: H01Q 1/10 Telescopic elements
• CPC Class Codes: H01Q 1/242 specially adapted for hand-held use
• CPC Class Codes: H01Q 1/245 with means for shaping the antenna pattern, e.g. in order to protect user against rf exposure
• CPC Class Codes: H01Q 11/08 Helical antennas
• CPC Class Codes: H01Q 9/32 Vertical arrangement of element H01Q9/40 takes precedence
• CPC Class Codes: H01Q 9/38 with counterpoise with counterpoise comprising elongated elements coplanar with the active element H01Q9/44
• CPC Class Codes: H04B 1/3838 Arrangements for reducing RF exposure to the user, e.g. by changing the shape of the transceiver while in use

Abstract

When the portable wireless device of the present invention is used, the second housing 3 with the antenna unit 4 telescopically received therein is turned about the hinge 2 to a spread position where the antenna unit 4 is spread out a sufficient distance away from the housing 1 and is extended from the second housing 3. Hence, during communication the antenna unit 4 is kept sufficiently far apart from the user'"'"'s head 100 to provide improved transmission and/or reception characteristics.

Claims

1. A portable wireless device, comprising:

a first housing having a user interface on a first surface thereof and a wireless communication circuit contained therein;

a second housing hingedly connected to said first housing including an antenna support along one side thereof;

an antenna unit telescopically received in said antenna support and connected to said wireless communication circuit; and

a hinge connection connecting said second housing to a second surface of said first housing opposite said first surface about an axis along the lengthwise direction thereof wherein said hinge connection is parallel to said antenna support.

2. The portable wireless device according to claim 1, wherein said antenna unit has a sleeve-dipole antenna.

3. The portable wireless device according to claim 2, wherein said sleeve-dipole antenna has a helical radiation part.

4. The portable wireless device according to claim 1, wherein said antenna unit has a four-wire helical antenna.

5. A portable wireless device, comprising:

a first housing having a user interface on a first surface thereof and a wireless communication circuit contained therein;

a second housing hingedly connected to said first housing including an antenna support along one side thereof;

an antenna unit telescopically received in said antenna support and connected to said wireless communication circuit; and

a hinge connection connecting said second housing to a second surface of said first housing opposite said first surface about an axis along the widthwise direction thereof wherein said hinge connection is parallel to said antenna support.

6. The portable wireless device according to claim 5, wherein said antenna unit has a sleeve-dipole antenna.

7. The portable wireless device according to claim 6, wherein said sleeve-dipole antenna has a helical radiation part.

8. The portable wireless device according to claim 5, wherein said antenna unit has a four-wire helical antenna.