Keypad for a security system

• US 8,059,095 B2
• Filed: 09/10/2007
• Issued: 11/15/2011
• Est. Priority Date: 09/10/2007
• Status: Active Grant

• Current Assignee: Carrier Fire & Security Americas Corporation (Carrier Global Corporation)
• Original Assignee: UTC Fire & Security Americas Corporation, Inc. (Carrier Global Corporation)
• Inventors: Verstraelen, Johannes Gertrudis Raymundus
• Primary Examiner(s): Shankar; Vijay
• Application Number:
  US11/852,524
• Publication Number:
  US 20090066652A1
• Time in Patent Office: 1,527 Days
• Field of Search: 345 87- 98, 345156-178
• US Class Current: 345/168
• CPC Class Codes: G08B 13/1427 with transmitter-receiver for distance detection
• CPC Class Codes: G08B 21/0286 Tampering or removal detection of the child unit from child or article
• CPC Class Codes: G08B 25/14 Central alarm receiver or annunciator arrangements
• CPC Class Codes: G09G 3/04 for presentation of a single character by selection from a plurality of characters, or by composing the character by combination of individual elements, e.g. segments using a combination of such display devices for composing words, rows or the like, in a frame with fixed character positions

Abstract

Methods, computer-readable mediums, apparatuses, and systems are provided. For example, a method is disclosed which includes identifying at least one security system function, in a plurality of security system functions, for blocked user access when a keypad is away from a predetermined location; and storing the plurality of security system functions on a processor. In another embodiment a security keypad is disclosed which includes an LCD having a static portion and a dynamic portion; a multiplexing LCD controller coupled to the dynamic portion; a static LCD controller coupled to the static portion; DC/DC converter coupled to the multiplexing LCD controller; a keypad processing unit coupled to the multiplexing LCD controller, the static LCD controller, and the DC/DC converter; and a power supply coupled to the DC/DC converter, the keypad processing unit, and the static LCD controller.

Claims

1. A wireless security system keypad comprising:

a detector configured to determine at least one of an attachment of said wireless keypad to a fixed location and a proximity of said wireless keypad to said fixed location;

a processor coupled to said detector;

a memory coupled to said processor, wherein the memory contains instructions that when executed by said processor prevent access to a least one function when said detector fails to indicate one of said attachment and said proximity;

a liquid crystal display (“

LCD”

) comprising a static portion and a dynamic portion;

a multiplexing LCD controller coupled to said dynamic portion;

a static LCD controller coupled to said static portion;

a direct current to direct current (“

DC/DC”

) converter coupled to said multiplexing LCD controller;

a keypad processing unit coupled to said multiplexing LCD controller, said static LCD controller, and said DC/DC converter; and

a power supply coupled to said DC/DC converter, to said keypad processing unit, to and said static LCD controller.

2. The wireless security system keypad of claim 1 wherein said multiplexing LCD controller is adapted to control said power supply and said power supply is adapted to provide power to said dynamic portion for transmission of dynamic data.

3. The wireless security system keypad of claim 2 wherein said power provided by said multiplexing LCD controller is about 3.6 volts.

4. The wireless security system keypad of claim 1 wherein said static LCD controller is adapted to provide static data to said static portion.

7. The wireless security system keypad of claim 1 wherein the keypad processing unit is adapted to provide dynamic data to said multiplexing LCD controller, icon data to said static LCD controller, and an ON/OFF power control signal to said DC/DC converter.

8. The wireless security system keypad of claim 1 wherein said power supply is adapted to provide about 1.8 volts to about 3.3 volts to said DC/DC converter, said keypad processing unit, and said static LCD controller.

9. The wireless security system keypad of claim 1 wherein said LCD is a super twist nematic LCD.

10. The wireless security system keypad of claim 1, wherein

said fixed location is a bracket configured to attach to said wireless keypad, and

said detector comprises a reed switch internal to said wireless keypad, said reed switch configured for operation with a magnet attached to said bracket when said wireless keypad is attached to said bracket.

11. The wireless security system keypad of claim 1, wherein

said fixed location comprises at least one radio frequency identification (“

RFID”

) tag, and

said detector comprises a RFID reader internal to said wireless keypad, said RFID reader is configured to communicate with said RFID tag.

5. The wireless security system keypad of clam 1 wherein said DC/DC converter is adapted to provide power to said multiplexing LCD controller and said keypad processing unit.

6. The wireless security system keypad of claim 5 wherein said power provided by said DC/DC converter is about 3.3 volts.

12. A method, comprising:

identifying at least one security system function, in a plurality of security system functions, for blocked user access when a wireless keypad is not mounted at or positioned proximate a predetermined location, wherein the at least one function comprises a security system arming function;

storing said plurality of security system functions on a processor; and

preventing a user from performing the security system arming function unless the wireless keypad is detected as being mounted at or positioned proximate the predetermined location.

13. The method of claim 12 further comprising installing said processor into a security keypad.

14. The method of claim 12 further comprising installing a dual mode liquid crystal display (“

LCD”

) wherein said LCD is adapted to display static information and dynamic information.

15. The method of claim 12, further comprising:

installing said processor into a security keypad; and

installing at least one of a mechanical switch and wireless communication circuitry into said security keypad,

wherein said mechanical switch and said wireless communication circuitry are adapted to provide assistance in acquiring a location of said security keypad.

16. The method of claim 15 wherein said wireless communication circuitry is a radio frequency identification (“

RFID”

) reader.

17. The method of claim 12 wherein said wireless communication circuitry is one of an ultra-wide band transmitter and an ultra-wide band transceiver.

18. A wireless security system keypad, comprising:

a wireless keypad;

a detector configured to determine at least one of an attachment of said wireless keypad to a fixed location and a proximity of said wireless keypad to said fixed location;

a processor coupled to said detector; and

a memory coupled to said processor, wherein the memory contains instructions that when executed by said processor prevent a user from performing a security system arming function when said detector fails to indicate one of said attachment and said proximity.

19. The wireless security system keypad of claim 18, wherein

said fixed location comprises a bracket configured to attach to said wireless keypad, and

said detector comprises a mechanical switch internal to said wireless keypad, said mechanical switch configured for operation with a mating part of said bracket when said wireless keypad is attached to said bracket.