Honeycomb telephone device and communication method thereof

Abstract

A cellular telephone apparatus has a cellular telephone set capable of originating a plurality of calls to a base station and communicating with an accessory through sub-communication unit, and the accessory capable of communicating with the cellular telephone set through the sub-communication unit, and can execute a communication function other than a voice communication function by the cellular telephone set through the sub-communication unit. The apparatus includes a monitoring section for monitoring the channel quality of sub-communication between the cellular telephone set and the accessory during communication with a remote cellular telephone set by using the accessory, and a control section for, when the monitoring section determines that the channel quality of the sub-communication has deteriorated to a predetermined level or less, causing the cellular telephone set to start originating a call to the remote cellular telephone set.

Description

technical field [0001] The present invention relates to a cellular phone device and a communication method for the device. Other functions such as video telephony are allowed to be used by equipping the cellular phone with an accessory connected via a radio channel which controls the voice channel independently of the voice function. Background technique [0002] Recently, a cellular phone device having a videophone function, etc. and an ordinary call function has been developed, which can simultaneously start a plurality of calls and display other calls by transmitting / receiving image signals and other information signals in a remote location. side-to-side sensing image and so on. Since a cellular phone has a small screen, a cellular phone device having a separate image display unit has been proposed. In this device, the cellular phone receives an image signal from the other end portion, and transmits the received image to the image display unit through a radio channel su...

AI Technical Summary

Problems solved by technology

However, if there is an obstacle between them, the quality of the communication channel deteriorates, image interference occurs or communication is interrupted, resulting in failure to display images, etc.

[0004] In this case, in a conventional cellular phone device in which communication channels for the cellular phone and the image display unit cannot be individually controlled, the cellular phone cannot communicate with the remote cellular phone, causing inconvenience in use

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