Method and apparatus for a rolling code learning transmitter

• US 20060049914A1
• Filed: 08/31/2005
• Published: 03/09/2006
• Est. Priority Date: 08/09/2001
• Status: Active Grant

• Current Assignee: Gentex Corporation
• Original Assignee: Johnson Controls Technology Company (Johnson Controls International plc), The Chamberlain Group, Inc. (The Chamberlain Group LLC)
• Inventors: Fitzgibbon, James J.
• Granted Patent: US 7,741,951 B2
• Time in Patent Office: Days
• US Class Current: 340/5.230
• CPC Class Codes: G07C 2009/00492 whereby the code is a rolling code
• CPC Class Codes: G07C 2009/00888 programming by learning
• CPC Class Codes: G07C 2009/00928 for garage doors
• CPC Class Codes: G07C 2209/08 With time considerations, e.g. temporary activation, valid time window or time limitations
• CPC Class Codes: G07C 9/00309 operated with bidirectional data transmission between data carrier and locks
• CPC Class Codes: G07C 9/00857 where the code of the data carrier can be programmed

Abstract

A barrier movement operator system having a receiver for receiving, learning and responding to transmitted rolling code type access codes; at least one trained transmitter for operating the system by transmitting a rolling code type access code to the receiver; at least one learning transmitter for learning the rolling code type access code from said trained transmitter in order to operate the system; a controller for evaluating the relationship between the learning transmitter rolling type access code and the trained transmitter rolling type access code; and a device for providing a barrier movement in response to access codes received by the receiver. The barrier movement operator provides a method of learning valid security codes by a security code receiver comprising the steps of receiving a first security code, then within a predetermined period of time receiving a second security code, having a predetermined relationship to the first security code; and storing a representation of the second security code as a valid security code.

Claims

1. A method of learning valid security codes by a security code receiver, comprising steps of:

receiving a first security code;

within a predetermined period of time receiving a second security code, having a predetermined relationship to the first security code; and

storing a representation of the second security code as a valid security code.