Portable wireless terminal with a pointing device

• US 20020021286A1
• Filed: 07/26/2001
• Published: 02/21/2002
• Est. Priority Date: 08/18/2000
• Status: Abandoned Application

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Choi, Young-Sang
• Application Number:
  US09/912,520
• Publication Number:
  US 20020021286A1
• Time in Patent Office: Days
• US Class Current: 345/168
• CPC Class Codes: G06F 3/03543 Mice or pucks G06F3/03541 takes precedence
• CPC Class Codes: H04M 1/0202 Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets constructional features of telephone transmitters or receivers, e.g. of speakers or microphones H04M1/03
• CPC Class Codes: H04M 1/233 including a pointing device, e.g. roller key, track ball, rocker switch or joystick constructional details of pointing devices per se G06F3/033

Abstract

A portable wireless terminal includes a key pad mounted on a top surface of a main body and a pointing device for moving a cursor on a screen. The pointing device includes a recess formed in one side of the main body, a ball mounted in the recess, and a sensor for sensing rotational displacement of the ball to output a signal to a processor. In the portable wireless terminal, the cursor on the screen moves freely, quickly, and simply in accordance with rotation of the ball. This improves convenience in use of the portable wireless terminal.

Claims

1. In a portable wireless terminal including a key pad mounted on a top surface of a main body, and a pointing device for moving a cursor on a display screen, the pointing device comprising:

a recess formed in one side of the main body;

a ball mounted in the recess; and

a sensor for sensing rotational displacement of the ball to output a signal to a processor.

2. The portable wireless terminal of claim 1, wherein the recess is formed in a lower surface of the main body.

3. The portable wireless terminal of claim 1, wherein the recess is formed in the top surface of the main body.

4. The portable wireless terminal of claim 1, further comprising a holder mounted around the recess to support the ball, so that a part of the ball is exposed from the surface of the main body.

5. The portable wireless terminal of claim 1, wherein the key pad is provided with input buttons.

6. A portable wireless device incorporating a mouse function, comprising;

a main body having a top and a bottom surface, and including a display on said top surface;

a mouse-type ball and sensor device incorporated into one of said top and bottom surfaces; and

at least two keys located on said top surface which functionally correspond to right and left-click buttons for a mouse-type ball and sensor device.