Abstract: For the process for determining a distance, there is provided a succession of coded signals at high frequency transmitted between a base station and a wearable object. A preparation of a response signal is conducted in the wearable object on reception of the first synchronisation signal after activation of the wearable object. A transmission of successive coded signals at high frequency from the wearable object is conducted for the station, of which the last response signal is scrambled by a modulation of data on the last signal received at a high transfer rate from the station. An analysis is conducted in a processing unit of the base station after reception of the signals from the wearable object to accurately determine the distance separating the base station from the recognised wearable object.

Abstract: In the case of the process for secure access to a determined space, it is provided that after activation of the wearable object, a first coded signal is transmitted from the access or unlocking device, this first coded signal is received in the object and a coded response signal is transmitted with synchronization to the device after a defined time of transmission. A processing of the coded response signal converted in the processing unit of the device is conducted in order to check the defined time delay and the response code of the wearable object and to determine the flight times of the signals between the device and the wearable object. The distance separating the wearable object and the access or unlocking device is thus calculated to authorize access to the determined space if the calculated distance is below a determined threshold after recognition of the wearable object.

Abstract: In the case of the process for secure access to a determined space, it is provided that after activation of the wearable object, a first coded signal is transmitted from the access or unlocking device, this first coded signal is received in the object and a coded response signal is transmitted with synchronisation to the device after a defined time of transmission. A processing of the coded response signal converted in the processing unit of the device is conducted in order to check the defined time delay and the response code of the wearable object and to determine the flight times of the signals between the device and the wearable object. The distance separating the wearable object and the access or unlocking device is thus calculated to authorise access to the determined space if the calculated distance is below a determined threshold after recognition of the wearable object.

Abstract: For the process for determining a distance, there is provided a succession of coded signals at high frequency transmitted between a base station and a wearable object. A preparation of a response signal is conducted in the wearable object on reception of the first synchronisation signal after activation of the wearable object. A transmission of successive coded signals at high frequency from the wearable object is conducted for the station, of which the last response signal is scrambled by a modulation of data on the last signal received at a high transfer rate from the station. An analysis is conducted in a processing unit of the base station after reception of the signals from the wearable object to accurately determine the distance separating the base station from the recognised wearable object.

Abstract: A television receiver includes a frequency conversion circuit, an analog-to-digital converter, a signal processor, and a signal output circuit. The frequency conversion circuit receives an input RF signal in one of several television signal formats and converts the input RF signal to an intermediate frequency signal. The analog-to-digital converter samples the intermediate frequency signal and generates a digital representation thereof. The signal processor processes the digital representation of the intermediate frequency signal in accordance with the television signal format of the input RF signal and generates digital output signals indicative of information encoded in the input RF signal. Finally, the signal output circuit receives the digital output signals from the signal processor and provides one or more output signals corresponding to the digital output signals.

Abstract: A television receiver includes a frequency conversion circuit, an analog-to-digital converter, a signal processor, and a signal output circuit. The frequency conversion circuit receives an input RF signal in one of several television signal formats and converts the input RF signal to an intermediate frequency signal. The analog-to-digital converter samples the intermediate frequency signal and generates a digital representation thereof. The signal processor processes the digital representation of the intermediate frequency signal in accordance with the television signal format of the input RF signal and generates digital output signals indicative of information encoded in the input RF signal. Finally, the signal output circuit receives the digital output signals from the signal processor and provides one or more output signals corresponding to the digital output signals.