Portable communication device for minimizing specific absorption rate (SAR) value of electromagnetic waves

• US 6,920,344 B2
• Filed: 11/21/2001
• Issued: 07/19/2005
• Est. Priority Date: 06/07/2001
• Status: Expired due to Fees

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Jang, Chang-Weon
• Primary Examiner(s): Trost, William
• Assistant Examiner(s): LE, DANH C
• Application Number:
  US09/989,924
• Publication Number:
  US 20020187806A1
• Time in Patent Office: 1,336 Days
• Field of Search: 455/575.5, 455/575.1, 455/90.3, 455/347, 455/348, 455/344, 455/349, 455/351, 379/433.08, 379/433.07, 379/433.01, 361/816, 361/800, 361/752, 361/700, 361/736
• US Class Current: 455/575.5
• 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 1/0262 for a battery compartment

Abstract

There is provided a portable communication device for minimizing the SAR of electromagnetic waves. In the portable communication device, a slim upper housing has an FBC on which a keypad is mounted, a lower housing is vertically spaced from the slim upper housing by a predetermined distance and includes a PCB assembly, and a middle housing is positioned between the slim upper housing and the lower housing, spatially isolated from the lower housing by a separation plate to minimize the adverse effects of electromagnetic waves generated from the PCB assembly, and has a slot opened from the front end to hold an object in the lengthwise direction. A sliding battery pack is insertable to and detachable from the middle housing in the lengthwise direction.

Claims

1. A portable communication device, comprising:

a body housing including an upper housing with a flexible board circuit (FBC) on which a keypad is mounted, a lower housing vertically spaced from the upper housing by a predetermined distance and including a printed circuit board (PCB) assembly, and a middle housing between the upper housing and the lower housing, separated from the lower housing by a separation plate for blocking electromagnetic waves generated from the PCB assembly, and having a slot opened from an end; and

a sliding battery pack insertable into said slot and attachable to and detachable from the middle housing in a lengthwise direction, for supplying power to the portable communication device.

2. The portable communication device of claim 1, wherein the sliding battery pack includes at least one connection port.

3. The portable communication device of claim 1, wherein the sliding battery pack includes at least one charging port at an exposed end when inserted into said slot and at least one connection port.

4. The portable communication device of claim 1, further comprising a locking device for locking the sliding battery pack in the slot when inserted into said slot.

5. A portable communication device comprising:

a body housing including an upper housing;

a lower housing vertically spaced a predetermined distance from the upper housing;

a middle housing between the upper housing and the lower housing, separated from the lower housing by a separation plate for blocking electromagnetic waves generated from the PCB assembly and having a slot opened from an end;

a sliding battery pack insertable into said slot and attachable to and detachable from the middle housing in a lengthwise direction, for supplying power to the portable communication device;

locking device for locking the sliding battery pack in the slot when inserted into said slot;

a locker of the locking device having two free ends with respect to a hinge shaft, one of the free ends exposed from a side end of the middle housing to be pressed externally and the other free end disposed in the middle housing to lock the sliding battery pack; and

a locking groove formed at a predetermined position of a side end of the sliding battery pack to mate with the other free end of the locker that rotates when the one free end of the locker is pressed.

6. The portable communication device of claim 5, wherein a second locking device is installed to mate with a second locking groove located at a second predetermined position on a second side and of said sliding battery pack.

7. A portable communication device, comprising:

an upper housing having a keypad;

a lower housing connected to said upper housing, said lower housing having a printed circuit board (PCB) connected to said keypad;

a battery pack connectable between said upper housing and said lower housing;

a first separation plate located between said battery pack and said lower housing for reducing a specific absorption rate (SAR) of electromagnetic waves generated from said PCB; and

a second separation plate located between said battery pack and said upper housing to further reduce the SAR generated from said PCB.