Patent ID: 7031396

Claim:
A transmission and reception system comprising: a plurality of remote controllers; each of said plurality of remote controllers including means for transmitting transmission signals; transmission signals of each of said plurality of remote controllers having a single transmission period (ST) that is different from transmission periods for all others of said plurality; said transmission periods consisting of equal unit transmission periods (TT) for individual channels; a single receiver for receiving said transmission signals from said individual remote controllers, said unit transmission period (TT) consists of a data transmission period (DTa) and a data stop period (DTb); said data stop period (DTb) is at least as long as said data transmission period (DTa); said single transmission period (ST) for said individual remote controllers is 2i times (where “i” is a natural number equal to or more than 3, and a unique number that is equal to a proper number different for each channel from all other channels) said unit transmission period (TT); said single transmission period consists of transmission enabled periods (STa) and transmission disabled periods (STb) in a sequence of said transmission enabled period (STa) for 2i−2 times said unit transmission period (TT), said transmission disabled period (STb) for 2i−3 times said unit transmission period (TT), said transmission enabled period (STa) for 2i−3 times said unit transmission period (TT), said transmission disabled period (STb) for 2i−2 times said unit transmission period (TT), said transmission enabled period (STa) for 2i−3 times said unit transmission period (TT), said transmission disabled period (STb) for 2i−3 times said unit transmission period (TT); and said individual remote controllers including means for transmitting signals using channels that are different from one another.