Foldable and portable communication apparatus that can reduce the EM absorption

• US 7,420,515 B2
• Filed: 09/06/2005
• Issued: 09/02/2008
• Est. Priority Date: 09/07/2004
• Status: Expired due to Fees

• Current Assignee: Qisda Corporation
• Original Assignee: Qisda Corporation
• Inventors: Chang, Chih-Min, Tai, Chin-Chuan
• Primary Examiner(s): PHAN, THO GIA
• Application Number:
  US11/220,087
• Publication Number:
  US 20060049997A1
• Time in Patent Office: 1,092 Days
• Field of Search: 343/702, 343/841, 455/90.3, 455/575.1
• US Class Current: 343/702
• 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: H04B 1/3838 Arrangements for reducing RF exposure to the user, e.g. by changing the shape of the transceiver while in use
• CPC Class Codes: H04M 1/0214 Foldable telephones, i.e. with body parts pivoting to an open position around an axis parallel to the plane they define in closed position combined with translation movement H04M1/0235

Abstract

This invention provides a foldable and portable communication apparatus including a lower case, an upper case, and a connector. The connector is used to connect the lower case and the upper case in a foldable way. The lower case has a lower inner face. The upper case has an upper inner face and an upper outer face. The upper inner face is installed with a speaker to output an audio signal. The upper outer face is installed with an antenna. The antenna and the upper outer face form a predetermined tilt angle, and the predetermined tilt angle is less than 180 degree to reduce electromagnetic absorption by the user.

Claims

1. A communication apparatus, comprising:

an upper case comprising an upper inner face and an upper outer face, the upper inner face being installed with a speaker to output a first audio signal, the upper outer face being installed with an antenna, the antenna and the upper outer face defining a predetermined tilt angle;

a lower case comprising a lower inner face; and

a connector for connecting the lower case and the upper case in a foldable manner;

wherein the predetermined tilt angle is less than 180 degree;

the upper outer face comprises a first side and a second side;

the first side is closer to the connector, and the second side is away from the connector;

the antenna is installed in the vicinity of the first side of the upper outer face.

2. The communication apparatus of claim 1, wherein the antenna is a dipole antenna in a column shape, and at least a section of the antenna protrude the upper outer face.

3. The communication apparatus of claim 1, wherein the predetermined tilt angle corresponds to an electromagnetic wave field that the antenna radiates, and the electromagnetic wave field changes accordingly when the predetermined tilt angle is changed.

4. The communication apparatus of claim 3, wherein changing the predetermined tilt angle of the antenna enables it to keep the radiation of the electromagnetic wave field radiated from the antenna away from a user who uses the communication apparatus, so as to reduce the electromagnetic energy absorbed by the user.

5. The communication apparatus of claim 1, wherein the connector comprises at least a shaft member and defines at least a recess portion formed in the lower case;

the shaft member comprises an axle and at least a contact portion;

two contact portions of the shaft member are disposed in two holes of the lower case, and the upper case rotates through the axle of the shaft member, so as to enable the upper case and the lower case to be kept in a folded or unfolded manner.

6. The communication apparatus of claim 5, wherein the connector comprises two recess portions, and the shaft member comprises two contact portions.

7. The communication apparatus of claim 5, wherein when the communication apparatus is in a non-communicating state, the upper case and the lower case are kept in a folded manner by the connector, so that the upper inner face and the lower inner face contact each other due to the folding.

8. The communication apparatus of claim 5, wherein when the communication apparatus is in a communicating state, the upper case and the lower case are kept in an unfolded manner by the connector, so that a user hears the first audio signal by approaching the upper inner face.

9. The communication apparatus of claim 5, wherein the lower inner face is installed with a microphone for receiving a second audio signal, and wherein when the communication apparatus is in the communicating state, the user sends out the second audio signal by approaching the microphone on the lower inner face, and the second audio signal is received by the microphone.

10. The communication apparatus of claim 1, wherein the upper inner face is installed with a display panel for displaying an alphabet, a character, a number, a graphic, an image, or a combination thereof.

11. The communication apparatus of claim 1, wherein the lower inner face is installed with a plurality of input buttons for a user to input an alphabet, a character, a number, or a combination thereof.

12. A foldable communication apparatus comprising:

a lower case; and

an upper case having a first side and a second side opposite to the first side, the upper case being rotatably coupled with the lower case at the first side, the upper case further comprising a speaker and an antenna,

wherein the antenna is a dipole antenna in a column shape and at least a section of the antenna protrudes the first side of the upper case and the upper case having an inner surface and an outer surface opposite to the inner surface, when the foldable communication apparatus is folded, the lower case facing the inner surface, wherein the antenna is far away from the second side, nearby the first side, and positioned at the outer surface.

13. The communication apparatus of claim 12, wherein the upper case farther comprises:

an upper inner face, the speaker being installed on the upper inner face; and

an upper outer face, the antenna being installed on the upper outer face, the antenna and the upper outer face defining a predetermined tilt angle, wherein the predetermined tilt angle corresponds to an electromagnetic wave field that the antenna radiates, and the electromagnetic wave field changes accordingly when the predetermined tilt angle is changed.

14. The communication apparatus of claim 13, wherein changing the predetermined tilt angle of the antenna enables it to keep the radiation of the electromagnetic wave field radiated from the antenna away from a user who uses the communication apparatus, so as to reduce the electromagnetic energy absorbed by the user.

15. The communication apparatus of claim 12, wherein the speaker is nearby the second side.

16. The communication apparatus of claim 12, further comprising:

a connector for connecting the lower case and the first side of the upper case.