Code learning system for a movable barrier operator

• US 20020126037A1
• Filed: 01/17/2002
• Published: 09/12/2002
• Est. Priority Date: 05/17/1995
• Status: Abandoned Application

• Current Assignee: The Chamberlain Group, Inc. (The Chamberlain Group LLC)
• Original Assignee: The Chamberlain Group, Inc. (The Chamberlain Group LLC)
• Inventors: Fitzgibbon, James J.
• Application Number:
  US10/052,224
• Publication Number:
  US 20020126037A1
• Time in Patent Office: Days
• US Class Current: 341/176
• CPC Class Codes: E05F 15/00 Power-operated mechanisms for wings motor-operated accessories in locks for completing closing or initiating opening of a wing E05B17/00
• CPC Class Codes: E05F 15/77 using wireless control
• CPC Class Codes: E05Y 2400/822 Light emitters, e.g. LEDs
• CPC Class Codes: E05Y 2800/106 Lighting
• CPC Class Codes: E05Y 2900/106 for garages
• CPC Class Codes: G07C 2009/00793 by Hertzian waves
• CPC Class Codes: G07C 2009/00849 programming by learning
• CPC Class Codes: G07C 2009/00928 for garage doors
• CPC Class Codes: G07C 9/00182 operated with unidirectional data transmission between data carrier and locks
• CPC Class Codes: G07C 9/00817 where the code of the lock can be programmed

Abstract

A movable barrier or garage door operator has a control head controlling an electric motor connected to a movable barrier or garage door to open and close it. The control head has an RF receiver for receiving RF signals from a hand-held transmitter or a fixed keypad transmitter. The receiver operates the electric motor upon matching a received code with a stored code. The stored codes may be updated or loaded either by enabling the learn mode of the receiver from the fixed keypad transmitter or from a wired control unit positioned within the garage.

Claims

1. A barrier operator for moving a barrier, comprising:

a microcontroller for receiving commands from an external source;

a barrier actuator system for controlling a position of the barrier by controlling an electric current to a motor;

an input port connected to the microcontroller for receiving an incoming serial data string from the external source; and

an output port connected to the microcontroller for generating a serial data string indicative of the condition of the microcontroller reflecting condition of the barrier operator.