Integrated pointing device having tactile feedback

• US 6,271,834 B1
• Filed: 05/29/1998
• Issued: 08/07/2001
• Est. Priority Date: 05/29/1998
• Status: Expired due to Fees

• Current Assignee: Lenovo Singapore Pte Limited (Lenovo Group Ltd.)
• Original Assignee: International Business Machines Corporation
• Inventors: Selker, Edwin Joseph, May, Kim Wesley
• Primary Examiner(s): Shalwala, Bipin
• Assistant Examiner(s): Nguyen, Jimmy H.
• Application Number:
  US09/087,747
• Time in Patent Office: 1,166 Days
• Field of Search: 345/156-172, 341/22, 341/23, 341/37
• US Class Current: 345/168
• CPC Class Codes: G06F 3/0338 with detection of limited linear or angular displacement of an operating part of the device from a neutral position, e.g. isotonic or isometric joysticks
• CPC Class Codes: G06F 3/038 Control and interface arrangements therefor, e.g. drivers or device-embedded control circuitry
• CPC Class Codes: G06F 3/0485 Scrolling or panning

Abstract

An integrated manual control input device is provided for use in a computer system having a graphical user interface. The device comprises a pointing actuator mounted to a computer keyboard between preselected ones of the keys for engagement by a user'"'"'s index finger. The pointing actuator includes a coil in the form of a cylinder that, when carrying a current, produces a magnetic field to drive a ferromagnetic slug to provide tactile feedback to a user of the control input device.

Claims

1. A manual control input device for use in a keyboard, comprising:

a pointing actuator mounted to the keyboard between preselected ones of the keys for manipulation by a user'"'"'s finger, said pointing actuator being depressible by said user'"'"'s finger to perform a click function; and

tactile feedback means integrated with said pointing actuator for producing tactile feedback to said user'"'"'s finger indicating performance of said click function,

wherein said tactile feedback means comprises;

a manipulation lever having a bore running therethrough, mounted upon said pointing actuator;

a ferromagnetic slug disposed within the bore of said manipulation lever;

a coil disposed about said manipulation lever, said coil being actuated upon performance of said click function to drive said ferromagnetic slug up said bore to provide said tactile feedback; and

a cap mounted to the top of said manipulation lever for engagement with said user'"'"'s finger and against which said ferromagnetic slug impacts when driven up said bore to provide said tactile feedback.

2. An integrated manual control input device for use in a computer system having a graphical user interface, comprising:

a keyboard unit having a plurality of keys;

a pointing actuator mounted to the keyboard unit between preselected ones of the keys for manipulation by a user'"'"'s finger, said pointing actuator being depressible by said user'"'"'s finger to perform a click function; and

tactile feedback means integrated with said pointing actuator for producing tactile feedback to said user'"'"'s finger indicating performance of said click function,

wherein said pointing actuator includes a cap for engagement with said user'"'"'s finger and means for impacting said cap with a moving element upon performance of said click function.

3. The control device according to claims 2 wherein said moving element is a slug of ferromagnetic material that is moved by energizing a coil.