Abstract: A method of recognizing an audio and/or visual format in a digital transmission network such as the Internet wherein formats include a quasi-continuous or divided in packets sequence of data, at least part of the sequence of data is analyzed for the presence of one or more bit patterns, and a notice is given in response to recognition of a predetermined format in an analyzed bit pattern.

Abstract: The invention concerns a method of encoding signals, in particular digitized audio signals, with an encoding device for encoding the signal in an encoding format and a processing device for processing the encoded signal. Methods of that kind are known for example from European patent specification No 290 581. In that case, in the bit rate-reducing encoding of audio signals which are already present in digitized form, for example 48 kHz sampling frequency/16-bit resolution, psycho-acoustic phenomena of the perception of audio signals are used in such a way that the original bit rate of the audio signals is considerably reduced. Such methods are also familiar and standardised under the heading of ‘source encoding’ (ISO 11172 and 11318). The object of the invention is to provide a method of the kind set forth in the opening part of this specification, which resolves the above-indicated problems and in which re-coding operations, once encoding has been effected, are very substantially avoided.

Abstract: A method and apparatus for transferring/receiving audio and/or video signals for bridging synchronous and asynchronous networks and minimizing delay time over such networks including analysing the active network interface for determining the network interface that is receiving and/or sending data, taking a multiplexed synchronous-clock signal from the network and providing it to a bitstream analyser, analysing the format of a multiplexed signal obtained from another audio codec, analysing the audio format, adapting the ISDN network clock to the IP network clock for forming a clock-adapted digital signal, encoding the digital signal, adapting the encoded signal to IP datagrams, and, inserting the datagram signal in the IP network.

Abstract: A method and system for transferring/receiving audio and/or video signals and minimizing delay time over Internet networks including, in transmission, converting, analog audio and/or video input signal to digital form by means of an A/D converter, processing the digital audio and/or video signal in order to manipulate, control, adapt or change it, converting the sampling rate of the digital audio and/or video signal for adapting the digital input clock to the network clock or for adapting the A/D clock to the network clock resulting in an clock-adapted digital signal, encoding the clock-adapted digital signal for reducing the number of bits resulting in a lower bit rate encoded signal, multiplexing the encoded signal and packing it into a resulting multiplexed signal which needs to comply with the used and/or applied network interface, inserting the multiplexed signal into a network, and analysing the active network interface for deterimining the network interface that is receiving and/or sending data; and in