초록 ▼

A radio system providing two-way radio communications between a mobile radio transmitting and receiving station operating in a first frequency range and a stationary radio transmitting and receiving station operating in a second frequency range via a radio broadcasting device disposed in a motor veh

A radio system providing two-way radio communications between a mobile radio transmitting and receiving station operating in a first frequency range and a stationary radio transmitting and receiving station operating in a second frequency range via a radio broadcasting device disposed in a motor vehicle. The broadcasting device includes a motor vehicle mounted radio transmitting and receiving station as well as a motor vehicle mount which is essentially provided with holding and connecting means for at least two hand-held radio communications devices operating in the first frequency range, a current supply circuit connected with the motor vehicle battery and a function transfer device. One hand-held communications device can be used as such a mobile radio transmitting and receiving station outside the motor vehicle. Radio communication takes place, in the first frequency range, from the hand-held communications device used outside the motor vehicle via the other hand-held device which is in its mount in the motor vehicle and, in the second frequency range, from the other hand-held device via the function transfer device and the motor vehicle mounted radio transmitting and receiving station to the stationary radio transmitting and receiving station and in the opposite direction, in the second frequency range, from the stationary station via the motor vehicle mounted station and the function transfer device to the other hand-held device and, in the first frequency range, from the other hand-held device to the one hand-held device.

대표청구항 ▼

In a radio system including a first hand-held two-way communications device operating in a first frequency range, and a radio broadcasting device disposed in a motor vehicle for establishing two-way radio communication between the first hand-held device and a stationary radio transmitting and receiv

In a radio system including a first hand-held two-way communications device operating in a first frequency range, and a radio broadcasting device disposed in a motor vehicle for establishing two-way radio communication between the first hand-held device and a stationary radio transmitting and receiving station operating in a second frequency range, the radio broadcasting device including a vehicle mounted radio transmitting and receiving station operating in the second frequency range, a mount disposed in the vehicle and configured for holding the first hand-held device, and a power supply circuit connected to receive power from a source in the vehicle, the improvement wherein: said system further comprises a second hand-held, two-way communications device operating in the first frequency range; said mount is further configured for holding said second hand-held device; each said hand-held device is provided with external contacts; and said radio broadcasting device further comprises: electrical connection means associated with said mount and connected to said power supply circuit for establishing readily-disconnectable connections with said external contacts of, and for supplying power from said power supply circuit to, each said hand-held device when that hand-held device is held in said mount; and function transfer means disposed in said mount and connecting said electrical connection means to said vehicle mounted station.