Edge touchpad input device

• US 7,088,343 B2
• Filed: 04/30/2001
• Issued: 08/08/2006
• Est. Priority Date: 04/30/2001
• Status: Expired due to Fees

• Current Assignee: Lenovo Singapore Pte Limited (Lenovo Group Ltd.)
• Original Assignee: Lenovo Singapore Pte Limited (Lenovo Group Ltd.)
• Inventors: Zhai, Shumin, Smith, Barton A.
• Primary Examiner(s): Awad, Amr A.
• Assistant Examiner(s): NGUYEN, KIMNHUNG T
• Application Number:
  US09/845,552
• Publication Number:
  US 20020158838A1
• Time in Patent Office: 1,926 Days
• Field of Search: 345173-174, 345/161, 345/163, 345/166, 345/179, 345/156, 345/427, 345/168
• US Class Current: 345/173
• CPC Class Codes: G06F 1/1616 with folding flat displays, e.g. laptop computers or notebooks having a clamshell configuration, with body parts pivoting to an open position around an axis parallel to the plane they define in closed position
• CPC Class Codes: G06F 1/1626 with a single-body enclosure integrating a flat display, e.g. Personal Digital Assistants [PDAs]
• CPC Class Codes: G06F 1/1684 Constructional details or arrangements related to integrated I/O peripherals not covered by groups G06F1/1635 - G06F1/1675
• CPC Class Codes: G06F 1/169 the I/O peripheral being an integrated pointing device, e.g. trackball in the palm rest area, mini-joystick integrated between keyboard keys, touch pads or touch stripes G06F1/1643 takes precedence; constructional details of pointing devices G06F3/033
• CPC Class Codes: G06F 2203/0339 Touch strips, e.g. orthogonal touch strips to control cursor movement or scrolling; single touch strip to adjust parameter or to implement a row of soft keys
• CPC Class Codes: G06F 3/03547 Touch pads, in which fingers can move on a surface

Abstract

A touchpad input device is provided that is disposed about at least a portion of at least one outside edge of an electronic device housing. The present invention also provides electronic devices comprising the present touchpad input device. Furthermore, the present invention provides a method of sensing user input about an outside edge of an electronic device housing, wherein the user input is detected by a user input detector that relays a signal to a control circuit to be acted upon appropriately.

Claims

1. An electronic device comprising:

a housing comprising a face, a back and an outside edge,

the back being located substantially behind the face,

the outside edge comprising at least two adjoining sections and at least one corner edge wherein two adjoining sections of the outside edge are connected at an angle by each of the at least one corner edge;

at least one touchpad that is continuously disposed along the at least two adjoining sections and the at least one corner edge of the outside edge of the housing in order to form a single touchpad along the at least two non-parallel sections and the at least one corner edge; and

a user input detector, electrically coupled to the at least one touchpad, for detecting user input from the at least one touchpad,

wherein a sliding contact with the at least one touchpad causes an adjustment of an operating variable unrelated to graphical object display.

2. A touchpad input device comprising:

a touchpad disposed along at least portion of at least one outside edge of a housing;

a display located within the housing, the at least one outside edge of the housing being located about at least one edge of the display, and the touchpad being disposed along at least a portion of the at least one edge of the display;

a dimension selection switch able to select one of at least two dimensions;

a user input detector, electrically coupled to the touchpad and the dimension selection switch, for detecting user input from the touchpad and a selected dimension selected by the dimension selection switch and transmitting input signals, wherein the input signals controls movement in the selected dimension in response to the user input; and

a control circuit electrically coupled to the user input detector and the display;

wherein the control circuit acts upon the input signals from the user input detector and transmits output signals to the display.

3. The touchpad input device of claim 2, wherein the touchpad extends substantially about a perimeter of the housing along the at least one outside edge of the housing.

4. The touchpad input device of claim 2 wherein the touchpad comprises at least one of a distinctive shape and texture, for providing a tactile feedback to the user.

5. The touchpad input device of claim 2, further comprising an analog-to-digital converter electrically coupled between the user input detector and the control circuit for converting electrical signals into digital information readable by the control circuit.

6. The touchpad input device of claim 2, further comprising a threshold comparator electrically coupled between the user input detector and the control circuit.

7. The touchpad input device of claim 2, further comprising an electric signal amplifier electrically coupled between the user input detector and the control circuit.

8. The touchpad input device of claim 2, wherein the touchpad comprises a touchpad strip disposed along at least a portion of at least one outside edge of the housing for detecting user input along the touchpad strip.

10. The method of claim 2, wherein one of the at least two dimensions is one of zoom and rotate.

9. An electronic device comprising:

a housing comprising a face, a back and an outside edge,

the back being located substantially behind the face,

the outside edge comprising at least two adjoining sections and at least one corner edge wherein two adjoining sections of the outside edge are connected at an angle by each of the at least one corner edge;

at least one touchpad that is continuously disposed along the at least two adjoining sections and the at least one corner edge of the outside edge of the housing in order to form a single touchpad along the at least two non-parallel sections and the at least one corner edge; and

a user input detector, electrically coupled to the at least one touchpad, for detecting user input from the at least one touchpad,

wherein the at least one touchpad comprises a plurality of sections and each section of the at least one touchpad controls movement in one of at least two different one-dimensional axes, whereby user input provided along the plurality of sections provides multi-dimensional manipulation of objects displayed on a display screen, wherein the multi-dimensional manipulation of objects comprises three-dimensional manipulation of objects displayed on the display screen, wherein the three-dimensional manipulation comprises one of zoom and rotate, and wherein the at least two touchpads comprise at least three touchpads, and wherein each of the at least three touchpads correspond to one of x-axis manipulation, y-axis manipulation and one of zoom and rotate.