Abstract: An earphone includes a housing having a space therein and a path capable of ventilation from one end side on an external auditory canal side of a wearer to the other end side on an ambient environment side, a valve switching the path between an open state and a close state, a first microphone collecting an external sound on the ambient environment side, a second microphone collecting an uttered voice of the wearer, and a control unit controlling the open state and the close state. The control unit switches the path between the open state and the close state in accordance with an operation mode, and maintains or switches the path in or to the close state in a case where it is determined that a sound signal collected by the microphone and the second microphone during the operation mode is a wind noise.

Abstract: An information processing system includes: a state determiner that determines a state of an animal using a captured image of the animal; a feeling determiner that determines a feeling of the animal corresponding to the state of the animal determined by the state determiner, on the basis of a notification wording DB indicating a relationship between the state and the feeling of the animal; and a notification processor that notifies user terminal 4 of a wording indicating the feeling of the animal determined by the feeling determiner.

Abstract: An intercom system includes first and second communication networks, a network connector (cable connector, reception driver, and transmission driver), an operation setter, and a connection controller. Each of the first and second communication networks includes an entrance slave device and an intercom master device, and performs communication by time division duplex. The network connector is used for connecting the communication networks. The operation setter sets share or unshare in order to indicate whether or not information stored in a slot is shared between the first communication network and the second communication network, for each slot. The connection controller controls the network connector to perform connection or disconnection (operation of transmission driver) between the first communication network and the second communication network, in accordance with settings of the share or the unshare.

Abstract: A connection status detector of a controller determines that a two-wire cable is forward connected, in a case where a synchronization pattern of reception data completely coincides with a synchronization pattern for forward connection check. The connection status detector determines that the two-wire cable is reversely connected, in a case where the synchronization pattern of reception data completely coincides with a synchronization pattern for reverse connection check. A transmission data inverter reverses an uplink signal output from a transmission data processor, in a case where it is determined that the two-wire cable is reversely connected. A reception data inverter reverses a downlink signal output from a reception driver, in a case where it is determined that the two-wire cable is reversely connected.

Abstract: An intercom system includes first and second communication networks, a network connector (cable connector, reception driver, and transmission driver), an operation setter, and a connection controller. Each of the first and second communication networks includes an entrance slave device and an intercom master device, and performs communication by time division duplex. The network connector is used for connecting the communication networks. The operation setter sets share or unshare in order to indicate whether or not information stored in a slot is shared between the first communication network and the second communication network, for each slot. The connection controller controls the network connector to perform connection or disconnection (operation of transmission driver) between the first communication network and the second communication network, in accordance with settings of the share or the unshare.

Abstract: A connection status detector of a controller determines that a two-wire cable is forward connected, in a case where a synchronization pattern of reception data completely coincides with a synchronization pattern for forward connection check. The connection status detector determines that the two-wire cable is reversely connected, in a case where the synchronization pattern of reception data completely coincides with a synchronization pattern for reverse connection check. A transmission data inverter reverses an uplink signal output from a transmission data processor, in a case where it is determined that the two-wire cable is reversely connected. A reception data inverter reverses a downlink signal output from a reception driver, in a case where it is determined that the two-wire cable is reversely connected.