Code learning system for a movable barrier operator
DCFirst Claim
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1. A barrier operator for moving a movable barrier, comprising:
- an electric motor;
a transmission system connectable to the electric motor for providing mechanical drive to the movable barrier;
a radio frequency receiver;
a decoder coupled to receive a demodulated signal from the radio frequency receiver;
means for recognizing a learn mode code received by the radio frequency receiver and producing a learn code enable signal in response thereto; and
means operative for a predetermined period of time after the reception of a learn mode code for storing a security code received by the radio receiver subsequent to the learn enable code having been received.
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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.
130 Citations
12 Claims
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1. A barrier operator for moving a movable barrier, comprising:
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an electric motor; a transmission system connectable to the electric motor for providing mechanical drive to the movable barrier; a radio frequency receiver; a decoder coupled to receive a demodulated signal from the radio frequency receiver; means for recognizing a learn mode code received by the radio frequency receiver and producing a learn code enable signal in response thereto; and means operative for a predetermined period of time after the reception of a learn mode code for storing a security code received by the radio receiver subsequent to the learn enable code having been received.
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2. A barrier operator for moving a garage door or other barrier, comprising:
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an electric motor positioned in a control head; a security code receiver for controlling the electric motor in response to a received security code when said received security code matches a code stored in the receiver; first apparatus for generating a first learn signal identifying a learn mode of operation; second apparatus remote from the first apparatus for generating a second learn signal identifying the learn mode of operation; circuitry for generating a security code to be stored in the security code receiver; and the security code receiver comprises means responsive to either of the first learn signal and the second learn signal for storing the security code generated by the circuitry for generating a security code in the security code receiver. - View Dependent Claims (3, 4, 5, 6)
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7. A security code learning system for a security code responding barrier operator, comprising:
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a memory for storing an existing security code; a wireless transmitter for transmitting selectable security codes, including a first security code and a second security code; a receiver for receiving transmitted security codes; and security code update means responsive to security codes received by said receiver, for storing said second security code in said memory when said first security code matches said existing security code stored in said memory. - View Dependent Claims (8, 9, 10, 11, 12)
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Specification