Switch assembly and associated handheld electronic device

• US 7,772,507 B2
• Filed: 11/03/2006
• Issued: 08/10/2010
• Est. Priority Date: 11/03/2006
• Status: Active Grant

• Current Assignee: Blackberry Limited
• Original Assignee: Blackberry Limited
• Inventors: Orr, Kevin, Fregin, Douglas Edgar
• Primary Examiner(s): Friedhofer; Michael A
• Application Number:
  US11/556,460
• Publication Number:
  US 20080123267A1
• Time in Patent Office: 1,376 Days
• Field of Search: 200/4, 200/5.R, 200/1.B, 200/600, 200/406, 200/516, 200/339, 200/6.A, 200/17.R, 200/18, 341/20, 341/22, 341/33, 341/34, 341/35, 345/156, 345/157, 345/161, 345/168, 345/169, 345/173, 345/184
• US Class Current: 200/5.00R
• 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 1/169 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
• CPC Class Codes: G06F 3/0362 with detection of 1D translations or rotations of an operating part of the device, e.g. scroll wheels, sliders, knobs, rollers or belts
• CPC Class Codes: H01H 2003/0293 with an integrated touch switch
• CPC Class Codes: H01H 2231/022 Telephone handset
• CPC Class Codes: H01H 2239/006 Containing a capacitive switch or usable as such
• CPC Class Codes: H03K 17/9622 using a plurality of detectors, e.g. keyboard
• CPC Class Codes: H03K 2217/96015 Constructional details for touch switches for capacitive touch switches see H03K2217/9607
• CPC Class Codes: H04M 1/236 including keys on side or rear faces
• CPC Class Codes: H05K 5/0017 with operator interface units

Abstract

An improved switch assembly for use in a handheld electronic device comprises a capacitive sensing system employing a capacitive slider input device to detect navigational inputs, and further provides a pair of switches mounted to the slider on an underside thereof to provide selection or escape inputs as desired.

Claims

1. A handheld electronic device comprising:

a housing;

a processor apparatus comprising a processor and a memory supported on the housing;

an input apparatus in communication with the processor apparatus and comprising a switch assembly supported on the housing;

an output apparatus in communication with the processor apparatus and comprising a display supported on the housing;

the switch assembly comprising a substrate, a capacitive sensing system, and at least a first switch;

the substrate having a first surface and a second surface opposite one another;

the capacitive sensing system comprising a series of at least three contacts disposed on the first surface; and

the at least first switch being disposed on the second surface and being engageable with an engagement structure to provide an input to the processor apparatus,

wherein the housing has a receptacle formed therein, at least a portion of the switch assembly being disposed in the receptacle, and wherein the housing further comprises a membrane that extends across at least a portion of the receptacle and that substantially encloses the at least portion of the switch assembly within the receptacle.

2. The handheld electronic device of claim 1 wherein the engagement structure has an engagement surface disposed within the receptacle, the switch assembly being engageable with the engagement surface to actuate the at least first switch.

3. The handheld electronic device of claim 1 wherein the processor apparatus comprises a circuit board extending generally in a plane, the processor and the memory being disposed on the circuit board, and wherein the switch assembly is movable between a first position and a second position to move the at least first switch between an unactuated position and an actuated position, the switch assembly being movable between the first and second positions in a direction of movement that is nonparallel with an axis normal to the plane.

4. The handheld electronic device assembly of claim 3 wherein the capacitive sensing system further comprises a flexible conductor and a capacitive controller circuit, the series of contacts being electrically connected with the capacitive controller circuit, the flexible conductor electrically extending between the capacitive controller circuit and the circuit board.

5. The handheld electronic device assembly of claim 3 wherein the at least first switch is a pair of switches that each comprise a collapsible dome having a proud portion that is structured to engage an engagement surface of the engagement structure.

6. The handheld electronic device of claim 1 wherein the switch assembly is disposed adjacent a side of the display, the processor apparatus being structured to interpret certain inputs from the series of contacts as navigational inputs and to interpret an input resulting from an actuation of the at least first switch as at least one of a selection input and an escape input.

7. The handheld electronic device of claim 1 wherein the at least first switch is disposed at a location on the second surface opposite a location on the first surface where at least a first contact of the series is disposed.

8. The handheld electronic device of claim 1 wherein the at least first switch comprises a first switch and a second switch, the first switch being disposed at a location on the second surface opposite a location on the first surface where a contact at a first end of the series is disposed, and the second switch being disposed at a location on the second surface opposite a location on the first surface where a contact at a second end of the series is disposed.

9. The handheld electronic device of claim 1 wherein the at least first switch comprises a collapsible dome and a retention member extending between the dome and the substrate.

10. The handheld electronic device of claim 1, wherein the substrate generally elongate in shape having a first end, a second end opposite the first end, a first surface and a second surface opposite the first surface.

12. The handheld electronic device of claim 1, wherein the switch assembly is disposed on a first side of the housing.

13. The handheld electronic device of claim 12, wherein the display is support by the housing on a second side of the housing.

11. A handheld electronic device comprising:

a housing;

a processor apparatus comprising a processor and a memory supported on the housing;

an input apparatus in communication with the processor apparatus and comprising a switch assembly supported on the housing;

an output apparatus in communication with the processor apparatus and comprising a display supported on the housing;

the switch assembly comprising a substrate, a capacitive sensing system, and at least a first switch;

the substrate having a first surface and a second surface opposite one another;

the capacitive sensing system comprising a series of at least three contacts disposed on the first surface; and

the at least first switch being disposed on the second surface and being engageable with an engagement structure to provide an input to the processor apparatus,

wherein the switch assembly is disposed adjacent a side of the display, the processor apparatus being structured to interpret certain inputs from the series of contacts as navigational inputs and to interpret an input resulting from an actuation of the at least first switch as at least one of a selection input and an escape input, and wherein the input apparatus comprises a pair of additional switch assemblies disposed adjacent a pair of opposite sides of the display, the side extending between the pair of opposite sides, the processor apparatus being structured to interpret certain inputs from the series of contacts of the at least first switch assembly as navigational inputs along a first navigational direction on the display and to interpret certain inputs from a series of contacts of either of the pair of additional switch assemblies as navigational inputs along a second navigational direction on the display.

15. The handheld electronic device of claim 11, wherein the series of at least three contacts are disposed on the first surface of the substrate, and the at least three contacts are disposed in a linear arrangement between the first end and the opposite second end.

14. A handheld electronic device comprising:

a housing;

a processor apparatus comprising a processor and a memory supported on the housing;

an input apparatus in communication with the processor apparatus and comprising a switch assembly supported on the housing;

an output apparatus in communication with the processor apparatus and comprising a display supported on the housing;

the switch assembly comprising a substrate, a capacitive sensing system, and at least a first switch;

the substrate having a first surface and a second surface opposite one another;

the capacitive sensing system comprising a series of at least three contacts disposed on the first surface; and

the at least first switch being disposed on the second surface and being engageable with an engagement structure to provide an input to the processor apparatus,

wherein the switch assembly is disposed adjacent a side of the display, the processor apparatus being structured to interpret certain inputs from the series of contacts as navigational inputs and to interpret an input resulting from an actuation of the at least first switch as at least one of a selection input and an escape input, and wherein the input apparatus comprises another switch assembly disposed adjacent another side of the display, the side and the another side intersecting at a corner of the display, the processor apparatus being structured to interpret certain inputs from the series of contacts of the at least first switch assembly as navigational inputs along a first navigational direction on the display and to interpret certain inputs from a series of contacts of the another switch assembly as navigational inputs along a second navigational direction on the display.