Abstract: One or more repeaters enable the conveyance of both asynchronous and synchronous transmissions. This can comprise receiving, via a first carrier, a transmission from a message source that is asynchronous with respect to a time slot partitioning of the communication protocol and then, when the asynchronous transmission is received during an asynchronous source transmission portion, buffering a corresponding message until a next available synchronous time slot opportunity during the asynchronous source transmission portion and then transmitting the message via the first carrier to at least attempt to forward the message.

Abstract: A pool of identifiers are individually used by corresponding particular ones of a repeaters. A communications protocol as used by the repeaters provides time slots to be used by these repeaters when making their transmissions. Each of the time slots is associated with individual corresponding ones of the identifiers, though the time slots are allocated unequally amongst the identifiers such that at least one of the identifiers has more time slots allocated to that identifier, over a given beacon cycle, than others of the identifiers.

Abstract: A pool of identifiers are individually used by corresponding particular ones of a repeaters. A communications protocol as used by the repeaters provides time slots to be used by these repeaters when making their transmissions. Each of the time slots is associated with individual corresponding ones of the identifiers, though the time slots are allocated unequally amongst the identifiers such that at least one of the identifiers has more time slots allocated to that identifier, over a given beacon cycle, than others of the identifiers.

Abstract: One or more repeaters enable the conveyance of both asynchronous and synchronous transmissions. This can comprise receiving, via a first carrier, a transmission from a message source that is asynchronous with respect to a time slot partitioning of the communication protocol and then, when the asynchronous transmission is received during an asynchronous source transmission portion, buffering a corresponding message until a next available synchronous time slot opportunity during the asynchronous source transmission portion and then transmitting the message via the first carrier to at least attempt to forward the message.

Abstract: The presence of a first human fingerprint at the fingerprint scanner. The first human fingerprint is analyzed to determine whether the first human fingerprint has been previously learned by the barrier movement operator. When the first human fingerprint is determined to be previously learned, a first command is sent to actuate a moveable barrier operator. Within a predetermined time period after the first human fingerprint has been determined to be previously learned, the presence of a second human fingerprint is sensed at the fingerprint scanner. Without analyzing the second fingerprint, a second command is sent to actuate the moveable barrier operator. The first fingerprint and the second fingerprint may be from the same or different users.

Abstract: In some of these approaches, a first fingerprint of a first user is stored in a memory and the transmission of an activation code is authorized. Subsequently, the first fingerprint is re-sensed and authenticated and a second fingerprint of a second user is responsively sensed and stored. The activation code is transmitted to the moveable barrier operator upon subsequent authenticating of the second fingerprint. Subsequently, the second fingerprint is re-sensed and authenticated and a third fingerprint of a third user is responsively sensed and stored. The activation code is transmitted to the moveable barrier operator upon subsequent authenticating of the third fingerprint.