Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail
Patent
1997-10-30
2000-07-04
Le, Thanh Cong
Telecommunications
Transmitter and receiver at same station
Radiotelephone equipment detail
455566, 455575, H04B 138
Patent
active
060851120
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
Global economic and cultural cooperation is increasing all the time. A result of this is that communication means are increasingly becoming a focus of economic and industrial interest. The occasions when it is necessary to obtain rapid access to personal or economic data and to base decisions directly on it are becoming more and more frequent.
The possibility of visual communication is also particularly important in this respect. To a certain extent, these possibilities are already provided by video telephones and fax devices. However, these technical solutions do not allow for the greater mobility which is required and demanded by people today.
The increasing use of electronic media and electronic data processing in all types of scientific and economic activities will cause the data volume with which such devices have to cope to continue to rise.
SUMMARY OF THE INVENTION
The object on which the invention is based is to provide a highly integrated mobile communication device and a communication arrangement.
In general terms the present invention is a communication device with integrated radio telephone. It has an image display device and an image recording device. An input means permits the position of a mark on an image of the image display device to be changed. A computer evaluates at least the position of the mark in conjunction with the image on the image display. In addition to the transmitter and receiver of the radio telephone, separate transmission means is provided for transmitting data independently of the radio telephone. The means being used at least to transmit data rates which exceed the transmission capacity of the radio telephone transmission link.
Advantageous developments of the present invention are as follows.
Means for tracking the pupil of the viewer of the image display device are provided. The computer evaluates the viewing direction of a viewer in conjunction with the image.
The computer is designed as a personal computer.
The image display device is integrated in the housing of the radio telephone. The image display device has a fold-open optical deflection device which deflects the optical beam path to the eye of the viewer when he is making a call with the radio telephone.
The image display device has a lens which represents the image into infinity and a reflection device which has a semi-translucent mirror or a prism.
The computer and the image display device are designed as a separate unit which can be removed from the housing of the radio telephone. A transmission means provides for communication between the separate units.
The input means have direction arrow keys, a trackball or a touch pad.
The transmission means are designed as an infrared link and/or an ultrasonic link and/or a radio transmission link.
The device has means for converting text into speech and/or vice versa.
The present invention is also a communication arrangement comprising at least a first communication device and a second communication device.
The data transmission takes place independently of the radio telephone via at least one data channel.
The data transmission takes place via a communication server which can be accessed by radio or infrared. The communication takes place via the server, which also performs computational tasks which are transmitted to it by the computer.
A particular advantage of the communication device according to the invention consists in the fact that it provides the possibility of carrying out visual communication and at the same time carrying out manipulations with the displayed screen contents using input means.
The communication device according to the invention advantageously has an optical image recording device with which images and/or the person speaking can be recorded.
It is particularly advantageous that the communication device according to the invention has a separate data channel with which relatively high data capacities can be transmitted. This data channel can, for example, be optimized directly for the transmission of image dat
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Kleinschmidt Peter
Niedermair Gerhard
Cong Le Thanh
Siemens Aktiengesellschaft
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