Abstract: A label positioning mechanism has a conveying mechanism, a label dispensing mechanism disposed on a side of the conveying mechanism, a first labeling mechanism disposed together with the label dispensing mechanism on the same side of the conveying mechanism and positioned proximate to the label dispensing side, and a second labeling mechanism which is disposed on another side of the conveying mechanism and opposes the first labeling mechanism. A first tight-fitting winding belt of the first labeling mechanism and a second tight-fitting winding belt of the second labeling mechanism move in opposite transmission directions and come into contact with each other to rotate bottles. Therefore, the label positioning mechanism is capable of rotating labeled bottles by a specific angle by adjusting the speeds of the conveying mechanism, the first tight-fitting winding belt, and the second tight-fitting winding belt so as to render ensuing processes speedy.

Abstract: A method for improving multimedia-broadcasting quality comprises the steps of: assigning one of receivers as an acknowledger; broadcasting in order the plural information blocks from a sender to the receivers; the acknowledger reporting an acknowledge (ACK) message to the sender at every time that the acknowledger receives one information block; re-broadcasting the information block to the receivers if the sender does not receive the respective ACK message; and repeating broadcasting till all the information blocks are successfully transmitted to the receivers.