DE2659673A1 - Portable radio telephone unit - has self-contained batteries but plugs into vehicle battery for more powerful operation - Google Patents

Abstract

The radio telephone system has a portable combined transmitter and receiver. The operation of these portable combined transmission and receiving stations in motor vehicles is optimised for the transmitting and reception conditions. The combined arrangement is built as a sliding unit for insertion in vehicle compartment. On insertion the contacts are made automatically. These contacts are connected to accessories necessary for power supply and for increasing the power of the power final stage, loudspeaker, antenna arrangements, diversity analysers and diversity switches. A charger can be included for batteries of the transportable equipment. This system ensures that a portable combined receiver and transmitter of low weight and short range can be used in motor vehicles to cover a wide transmission range.

Description

Radio telephony facility

The invention relates to a radio telephony device consisting of from a portable transceiver.

Portable cellular phones and vehicle cellular phones basically have the same tasks and can also largely consist of the same functional units being constructed. However, vehicle stations usually have greater ranges demanded and also operation while driving; therefore these devices also have one greater transmission power, combined with increased power consumption. Are vehicle stations compared to a portable station, on the other hand, is bound to this vehicle. at However, the wearer can also use a portable transceiver for radio purposes choose a more favorable position.

The invention has for its object in the operation of this portable Transceiver station in a vehicle also makes an optimization in a simple manner to create the send / receive conditions.

This task is performed in a radio telephony device consisting of a portable transceiver, achieved according to the invention in that this transceiver is designed for use in vehicles as a slide-in unit and automatic when slide-in Contact is made with a receiving device in the vehicle, in which Additional devices for common power supply, at least one larger power output stage, loudspeakers, antenna arrangements, diversity directions, such as diversity evaluators and diversity switching devices and possibly one Charging device for the batteries of the portable device are provided.

In this way, it is a good and easy adaptation to the driving operation guaranteed, since significantly higher performance in terms of the PA level when driving can be achieved and better antenna arrangements can also be used, as well especially space diversity facilities, so that the advantage of the portable device also achieved with its easy mobility with regard to changes of location can be.

The invention is explained in more detail below with the aid of a basic illustration described. The figure shows a tagable transceiver SE, which normally with everything that belongs to a handheld radio, e.g. power supply from batteries and a swiveling antenna. This transceiver is applying its back, as indicated schematically, plug-in devices StE. In the vehicle station FST there is a receptacle A, the matching receptacle sockets StA for the plugs StE of the portable device.

The receptacle A contains additional equipment in the vehicle, e.g.

a reinforced PA stage, possibly with a diversity recording DA works together. Since in a vehicle the power consumption of the transceiver does not play as big a role as in portable operation, a power output stage can be used here, thus PA stage with much greater power can be used. The same applies for e'in? e'vor-visible diiversity equipment, which is always a considerable one Effort requires a diversity evaluation as well as a diversity switching device of the known type are to be provided. At least two antennas are expediently used, d - .. h.-that two receivers with appropriate switching devices are also to be provided are (spatial diversity).

In addition, a device is provided in the recording that automatically takes over the power supply for the whole. This facility, with StV can of course also use the SE receiver on the slide-in unit supply or also its batteries, if these are rechargeable, reload. Further additional devices are shown in the schematic diagram WZ indicated and can, for example, a larger loudspeaker or listening devices with corresponding additional power supplies included.

In this way, a uniform device SE can be used for both tasks, that is, both portable operation and driving operation, are used, with The additional equipment in the vehicle means that the transmission reception options are largely adapted to which the portable station is reached.-1 claim 1 figure

Claims (1)

P a. t e n t a n s p r u c h radio telephony device, consisting from a portable transceiver that this transceiver is designed as a plug-in unit for use in vehicles and automatic contact with a receiving device in the vehicle when inserted is made in the auxiliary equipment for common power supply at least a larger power output stage, loudspeakers, antenna arrangements, diversity devices, such as diversity evaluators and diversity switching devices and possibly one Charging device for. the batteries of the portable device are provided.