To realize a camera
system in which an IP transmission is used for a communication between an imaging device and a CCU which various signals are appropriately transmitted with a simple configuration.SOLUTION: In a camera
system 1, an imaging device 10 side and a
camera control unit 50 are connected via a network N by an IP transmission. A
signal exchanged between an imaging device main body 20 and a CCU main body 60 can be roughly classified into two types: (1) a
signal in which a restriction on a
delay time is loose but a degradation at the time of the IP transmission is required to be small; and (2) a
signal in which the restriction on the degradation at the time of the IP transmission is loose but the
delay time is required to be short. A video signal and a communication
audio signal, which are signals to be transmitted, are both input to an
encoder for the IP transmission and encoded. Here, as this codec, two types of codec are set: a first codec in which a
delay time in
processing is relatively long but degradation is small; and a second codec in which degradation is relatively large but
delay time in
processing is short.SELECTED DRAWING: Figure 1