Modular keypad assembly

• US 7,309,132 B2
• Filed: 03/15/2006
• Issued: 12/18/2007
• Est. Priority Date: 06/02/2003
• Status: Expired due to Fees

• Current Assignee: Seiko Epson Corporation (Seiko Group)
• Original Assignee: InFocus Corporation (Lap-Shun Hui, MBA)
• Inventors: Sample, Greg
• Primary Examiner(s): Lee, Diane
• Assistant Examiner(s): Cruz, Magda
• Application Number:
  US11/376,826
• Publication Number:
  US 20060152692A1
• Time in Patent Office: 643 Days
• Field of Search: 353/119, 353/122, 454/184, 454/312, 399/73, 324/458, 345/3.1, 345/87, 345/173, 345/168, 349 16- 17, 349/86, 349/88, 349/90, 174 32-397, 361/104, 361/720, 361/600
• US Class Current: 353/119
• CPC Class Codes: G06F 3/0202 Constructional details or processes of manufacture of the input device

Abstract

A modular keypad assembly for use with a projection device is provided. This modular keypad assembly may include a user input through which a user may operate the projection device. Such a modular keypad assembly may include a elastomer keypad, a keypad support plate; and a keypad circuit board.

Claims

1. A modular keypad assembly including at least one user input for use with a projection device, the modular keypad assembly comprising:

a keypad in operative communication with a keypad circuit board; and

a keypad support plate contoured to substantially match an aperture in the projection device enclosure adapted to receive the modular keypad assembly, wherein the contour of the keypad support plate creates a perimeter overlap with the projection device enclosure, and wherein contact between the keypad support plate and the projection device enclosure facilitates electromagnetic interference (EMI) conductivity in the projection device enclosure.

2. The modular keypad assembly of claim 1, wherein the modular keypad assembly is configured to be flush with a projection device enclosure surface edge when installed in the projection device.

3. The modular keypad assembly of claim 1, wherein the keypad support plate comprises openings configured to receive retention pins extending from an interior portion of the projection device enclosure.

4. The modular keypad assembly of claim 3, wherein the projection device enclosure further comprises hooks configured to retain the modular keypad assembly in the projection device enclosure.

5. The modular keypad assembly of claim 4, wherein the hooks and pins are made at least partially of an electromagnetic shielding material.

6. The modular keypad assembly of claim 4, wherein the modular keypad assembly further comprises at least one electromagnetic interference strip to retain the pins.

7. The modular keypad assembly of claim 1, wherein the modular keypad assembly further comprises a display screen.