Coding system for multiple transmitters and a single receiver for a garage door opener

Claim 2

A garage door operator for a garage door comprising, a garage door operation mechanism with an output shaft connected to said garage door to open and close it, a radio receiver, a decoder connected to receive the output of said radio receiver, a microprocessor connected to receive the output of said decoder and to said garage door operation mechanism to energize it, a switch moveable between program and operate positions connected to said microprocessor to place said microprocessor in the operate or program mode, a memory means for storing a plurality of addresses connected to said microprocessor when said switch is in the program position, a memory selection switch connected to said microprocessor, a plurality of radio transmitters with different codes, said memory selection switch setable in a first position at a time when a first one of said radio transmitters is energized so that the code of said first transmitter will be stored in said memory means and said memory selection switch set in a second position at a time when a second one of said radio transmitters is energized so that the code of said second transmitter will be stored in said memory means, and said microprocessor placed in the operate mode when said switch is in the operate position so that either or both of said first and second radio transmitters when energized cause said microprocessor to energize said garage door operator mechanism.

Claim 3

A garage door operator for a garage door according to claim 1 wherein said first and second radio transmitters when energized radiate coded signals and said microprocessor receives and compares coded signals from said first and second transmitters with coded signals from said first and second transmitters with coded signals stored in said memory means and said microprocessor produces a garage door operate signal if the received transmitted signal and any one of said coded signals stored in said memory means match.

Claim 4

A garage door operator according to claim 2 wherein said memory selection switch has "n" positions where "n" is an integer and the codes of "n" transmitters can be stored in said memory means when said switch is in the program mode.

Claim 5

A garage door operator according to claim 3 wherein the code stored in said memory means can be changed by placing said switch in the program mode and one of said plurality of transmitters is energized which has a code which differs from the code previously stored in said memory means. .Iadd.

Claim 6

An operator for controlling operation of equipment comprising: a radio receiver, a decoder connected to receive the output of said radio receiver, a microprocessor connected to receive the output of said decoder and to said equipment to energize it, first switch means for selection between program and operate positions connected to said microprocessor to place said microprocessor in the operate or the program mode, a memory means for storing a plurality of addresses connected to said microprocessor when said first switch means is in the program position, a memory selection second switch means connected to said microprocessor, a plurality of radio transmitters with different codes, said memory selection second switch means being adapted to select a first position at a time when a first one of said radio transmitters is energized so that the code of said first transmitter will be stored in said memory means and said memory selection second switch means being adapted to select a second position at a time when a second one of said radio transmitters is energized so that the code of said second transmitter will be stored in said memory means, and said microprocessor placed in the operate mode when said first switch means is in the operate position so that either or both of said first and second radio transmitters, when energized cause said microprocessor to energize said equipment. .Iaddend..Iadd.6. An operator according to claim 5 wherein said first and second radio transmitters when energized radiate coded signals and said microprocessor receives and compares coded signals from said first and second transmitters with coded signals stored in said memory means and said microprocessor produces an operate signal if the received transmitted signal and any one of said coded signals stored in said memory means match. .Iaddend..Iadd.7. An operator according to claim 6 wherein said second switch means, has "n" positions where "n" is an integer and the codes of "n" transmitters can be stored in said memory means when said first switch means is in the program mode. .Iaddend..Iadd.8. An operator according to claim 7 wherein the code stored in said memory means can be changed by placing said first switch means in the program mode and one of said plurality of transmitters is energized which has a code which differs from the code previously stored in said memory means. .Iaddend.