Code responsive radio receiver capable of operation with plural types of code transmitters
First Claim
1. In an equipment actuation system, a method of responding to sequences of code digits received in a plurality of code word sequence formats including a rolling code format, each format being defined by a code word format standard, comprising the steps of:
- receiving and detecting the digits of a transmitted code word sequence in a sequence;
analyzing each detected digit for consistency with each of a plurality of code word format standards digit by digit as the digits are received and recovering code digits as a result of analysis;
registering the recovered digits in a plurality of registers each associated with a different code word sequence format;
identifying the format of the received code word sequence in response to the analyzing step; and
storing a value in the receiver derived from a received code word sequence registered in a register associated with the identified format.
1 Assignment
0 Petitions
Accused Products
Abstract
A barrier movement system which is useful in provided barrier movement in environments where a first barrier such as a community gate is commonly controlled by a plurality of different actuators (transmitters) which actuators separately control other barriers such as household garage doors. The controller of the commonly controlled gate receives and contemporaneously analyzes codes in accordance with a plurality of different code format standards and at the same time analyzes the received code to determine which format is actually being received. In an embodiment only a fixed code portion of a rolling code sequence is used for actuation at the commonly controlled barrier.
-
Citations
9 Claims
-
1. In an equipment actuation system, a method of responding to sequences of code digits received in a plurality of code word sequence formats including a rolling code format, each format being defined by a code word format standard, comprising the steps of:
-
receiving and detecting the digits of a transmitted code word sequence in a sequence; analyzing each detected digit for consistency with each of a plurality of code word format standards digit by digit as the digits are received and recovering code digits as a result of analysis; registering the recovered digits in a plurality of registers each associated with a different code word sequence format; identifying the format of the received code word sequence in response to the analyzing step; and storing a value in the receiver derived from a received code word sequence registered in a register associated with the identified format. - View Dependent Claims (2, 3)
-
-
4. In an equipment actuation system, a method comprising:
-
receiving a fixed security code sequence during a learning mode, and storing the received fixed code sequence in a first security code memory location; receiving a rolling code security sequence during a learning mode, and storing in a second security code memory location a value derived from the received rolling code security sequence; activating equipment in response to the receipt of a fixed code sequence while in an operate mode; and activating the same equipment in response to the receipt of a rolling code sequence while in an operate mode. - View Dependent Claims (5, 6)
-
-
7. An equipment actuation system comprising:
-
a memory storing a fixed security code sequence and a value derived from a rolling security code sequence; a receiver for receiving transmitted fixed security code sequences and rolling security code sequences; apparatus responsive to a received fixed security code sequence for comparing the received fixed security code sequence with both the fixed security code sequence and the value derived from a rolling security code sequence stored in the memory; and means responsive to the apparatus for actuating the equipment. - View Dependent Claims (8)
-
-
9. In an equipment actuation system, a method comprising:
-
receiving a fixed security code sequence during a learning mode, and storing the received fixed code sequence in a first security code memory location; receiving a rolling code security sequence during a learning mode, and storing in a second security code memory location a value derived from the received rolling code security sequence; activating equipment in response to the receipt of a fixed code sequence while in an operate mode; activating the same equipment in response to the receipt of a rolling code sequence while in an operate mode; receiving a fixed security code sequence while in the operate mode; and comparing the received fixed security code sequence with the fixed code sequence stored in the first security code memory location and with the value derived from a rolling code stored in the second security code memory location.
-
Specification