Abstract: Provided is a communication connection device that, if receiving an incoming call in which a representative telephone number that represents a group of mobile telephones is dialed, ensures that one of users of the mobile telephones answers the incoming call for sure.

Abstract: Provided is a communication connection device that, if receiving an incoming call in which a representative telephone number that represents a group of mobile telephones is dialed, ensures that one of users of the mobile telephones answers the incoming call for sure.

Abstract: Even if random connection to eight connectors at a base station is established when eight antennas are connected to the base station, a connection relation optimal for reception with a diversity system or with adaptive array processing can subsequently be established through switching by means of an antenna switching unit. A control circuit causes a test radio wave transmission circuit to transmit a radio wave from any one antenna, and levels of the radio waves received at remaining antennas are analyzed. In this manner, relative connection relation among connected antennas is found. Based on this analysis result, an antenna selection control circuit controls the antenna switching unit for reconnection of the antennas. Thus, a base station apparatus that is readily installed and achieves excellent work efficiency can be provided.

Abstract: Even if random connection to eight connectors at a base station is established when eight antennas are connected to the base station, a connection relation optimal for reception with a diversity system or with adaptive array processing can subsequently be established through switching by means of an antenna switching unit. A control circuit causes a test radio wave transmission circuit to transmit a radio wave from any one antenna, and levels of the radio waves received at remaining antennas are analyzed. In this manner, relative connection relation among connected antennas is found. Based on this analysis result, an antenna selection control circuit controls the antenna switching unit for reconnection of the antennas. Thus, a base station apparatus that is readily installed and achieves excellent work efficiency can be provided.

Abstract: A videophone at e.g., a called location, receives sound signals, video signals and control signals through a communication circuit from a communication line and originating at, e.g., a calling videophone. A start signal detecting means, within the called videophone detects a storage start requesting signal from received control signals originating at a calling videophone. At the time of such detection, a coding circuit within the called videophone again encodes the video signals, that are received by the communication circuit and continuously decoded by a decoding circuit, and transmitted by the calling videophone but only by one frame therefrom and stores the frame into a storage circuit. After storing the one frame, a change-over circuit in the called videophone switches to the storage circuit to continuously store the subsequent incoming coded video and sound signals for eventual playback.