| 摘要 |
<p>An apparatus and system for decoding colliding data transmissions in a transmission system utilizing an at will transmission protocol is disclosed. The apparatus includes an apparatus for decoding an analog signal including an input terminal (73), a data bus (77), a first decoder (74) is connected to the input terminal (73) and data bus (77) and configured to receive an analog signal, decode the signal into a first message (82) and output the message to the data bus (77), a second decoder (76) connected to the input terminal (73) and data bus (77) and configured to receive an analog signal, determine whether the analog signal includes a second message, decode the signal into a second message (84) and output the message to the data bus (77). A plurality of transmission units transmit analog signals on a selected frequency on an at will basis. The signals are received by a receiver which is connected to a first decoder (74) for decoding and outputting the contents of the transmission. A second decoder (76) connected to the receiver is provided for detecting and decoding a colliding second signal having an amplitude sufficient to capture the receiver. A microprocessor (78) operatively connected to the first and second decoders (74, 76) directs the second decoder (76) to search for a colliding second transmission immediately after the first decoder (74) has begun to decode a first transmission. If colliding second signal captures the receiver as the first transmission is decoded, the second decoder (76) decodes and outputs the second message intact.</p> |
