Abstract: A data transmission apparatus of this invention includes a first transmitting unit, a second transmitting unit, and a switching unit. The first transmitting unit generates a first error correction information, outputs the first data and the first error correction information to the switching unit and transmits a timing information of the first data and a first specified information to specify the first data to the second transmitting unit. The second transmitting unit compares a second specified information to specify the second data and the first specified information and transmitting the a first comparison result of the second specified information and the first specified information to the switching unit. The switching unit transmits the first data and the first error correction information when the first comparison result is not indicating a match of the second specified information and the first specified information.

Abstract: A data transmission apparatus of this invention includes a first transmitting unit, a second transmitting unit, and a switching unit. The first transmitting unit generates a first error correction information, outputs the first data and the first error correction information to the switching unit and transmits a timing information of the first data and a first specified information to specify the first data to the second transmitting unit. The second transmitting unit compares a second specified information to specify the second data and the first specified information and transmitting the a first comparison result of the second specified information and the first specified information to the switching unit. The switching unit transmits the first data and the first error correction information when the first comparison result is not indicating a match of the second specified information and the first specified information.

Abstract: Packets each including a sequence number and a time stamp are sequentially received, and a linear expression representing a correspondence between the sequence number and the time stamp is calculated based on the received packets. If a packet including a sequence number discontinuous to sequence numbers of the previously received packets is received, it is determined whether the currently received packet satisfies the linear expression by checking the sequence number and the time stamp of the currently received packet. If the currently received packet including the sequence number discontinuous to the sequence numbers of the previously received packets satisfies the linear expression, an output order is changed according to the sequence numbers of the packets. If the currently received packet including the sequence number discontinuous to the sequence numbers of the previously received packets does not satisfy the linear expression, the currently received packet is output.

Abstract: Packets each including a sequence number and a time stamp are sequentially received, and a linear expression representing a correspondence between the sequence number and the time stamp is calculated based on the received packets. If a packet including a sequence number discontinuous to sequence numbers of the previously received packets is received, it is determined whether the currently received packet satisfies the linear expression by checking the sequence number and the time stamp of the currently received packet. If the currently received packet including the sequence number discontinuous to the sequence numbers of the previously received packets satisfies the linear expression, an output order is changed according to the sequence numbers of the packets. If the currently received packet including the sequence number discontinuous to the sequence numbers of the previously received packets does not satisfy the linear expression, the currently received packet is output.