Patent ID: 8873645

Claim:
An information transmission apparatus, comprising: a transmission circuit that transmits, via a transmission path, a header pulse signal which has a signal length being equal to or more than twice as long as a reference time, a pulse period having a predetermined ratio thereof to the signal length, and a pulse stop period being successive to the pulse period and longer than the reference time, and that subsequently and successively transmits, via the transmission path, a plurality of data pulse signals which have a signal length being the same as the reference time, a pulse period having a predetermined ratio thereof to the signal length associated with data, and a pulse stop period being located before and after the pulse period; and a reception circuit that receives pulse signals transmitted from the transmission circuit via the transmission path, which detects the header pulse signal based on the pulse stop period of the received pulse signal, and which obtains a plurality of pieces of data based on the pulse period of pulse signals following the header pulse signal, wherein the pulse stop period of the header pulse signal transmitted by the transmission circuit is longer than the pulse stop period of each of the data pulse signals transmitted by the transmission circuit.