Simultaneous transmission of voice and non-voice data on a single narrowband connection
OwnerLars-Goran Petersen, Gosta Leijonhufvudinventors
Life of this patent
Estimating the term…
Abstract
In a publically switched telephone network (PSTN), a method and a system for simultaneously and independently multiplexing voice and non-voice data over a single, commonly shared PSTN access line. This is accomplished by packetizing the voice and non-voice data into minicells, and then multiplexing the minicells into a single data stream for transportation across the commonly shared PSTN access line. Once the minicells containing either voice or non-voice data have been transported over the single, commonly shared PSTN access line, the data is simultaneously and independently routed to distinctly different end-users according to the routing information stored in the header portion of each minicell.
Claims41
A method for simultaneously transmitting independent data over a single publically switched telephone network (PSTN) access line comprising the steps of:
- generating a first data packet;
- generating a second data packet, wherein the first data packet is generated by a first data source and the second data packet is generated by a second data source, independent of the first data source;
- multiplexing data associated with the first data packet and data associated with the second data packet into a single data stream;
- and
- transmitting the single data stream over the single PSTN access line, wherein the single PSTN access line is commonly shared by the first and the second data sources.
A method for establishing a plurality of telecommunications connections over a single, commonly shared publically switched telephone network (PSTN) access line comprising the steps of:
- establishing a telecommunications link between a first and a second end-user, wherein the first end-user terminal is serviced by a PSTN access line;
- establishing a telecommunications link between a third and a fourth end-user, independent of the telecommunications link between the first and the second end-user, wherein the third end-user is serviced by the PSTN access line;
- generating a first sequence of minicells associated with the first end-user;
- generating a second sequence of minicells associated with the third end-user;
- transmitting the first sequence of minicells from the first end-user to the second end-user over the PSTN access line;
- and
- transmitting the second sequence of minicells from the third end-user to the fourth end-user over the PSTN access line, wherein the second sequence of minicells and the first sequence of minicells are transmitted over the PSTN access line simultaneously.
An apparatus for simultaneously transmitting independent data over a single publically switched telephone network (PSTN) access line comprising the steps of:
- a first data source means for generating a first data packet;
- a second data source means for generating a second data packet, wherein the second data source means generates the second data packet independent of the first data source means, and the first data source means generates the first data packet independent of the second data source means;
- means for multiplexing data associated with the first data packet and data associated with the second data packet into a single data stream;
- and
- means for transmitting the single data stream over the single PSTN access line, wherein the single PSTN access line is commonly shared by the first and the second data sources.
An apparatus for establishing a plurality of telecommunications connections over a single, commonly shared publically switched telephone network (PSTN) access line comprising:
- means for establishing a first telecommunications link between a first and a second end-user, wherein the first end-user terminal is serviced by a PSTN access line;
- means for establishing a second telecommunications link between a third and a fourth end-user, independent of the first telecommunications link, wherein the third end-user is, simultaneous to the first end-user, serviced by the PSTN access line;
- means for generating a first sequence of minicells associated with the first telecommunications link, and for generating a second sequence of minicells associated with the second telecommunications link;
- means for transmitting the first sequence of minicells over the PSTN access line;
- and
- means for transmitting the second sequence of minicells over the PSTN access line, wherein the second sequence of minicells and the first sequence of minicells are transmitted over the PSTN access line simultaneously.
A system for simultaneously transmitting voice and non-voice data over a single publically switched telephone network (PSTN) access line comprising:
- a first data source capable of generating a first data packet, wherein the first data packet contains voice data;
- a second data source capable of generating a second data packet independent of the first data source generating the first data packet, wherein the second data packet contains non-voice data;
- multiplexer for receiving the first data packet and the second data packet, and for multiplexing the voice data associated with the first data packet and the non-voice data associated with the second data packet into a single data stream;
- and
- means for transmitting the single data stream over the single PSTN access line, wherein the single PSTN access line is commonly shared by the first and the second data sources.
A system for simultaneously transmitting voice and non-voice data over a publically switched telephone network (PSTN) comprising:
- a first telecommunications terminal capable of generating minicells containing voice data;
- a second telecommunications terminal capable of generating minicells containing non-voice data, independent of the first telecommunications terminal;
- multiplexer connected to said first and said second telecommunications terminals, wherein said multiplexer generates a single stream of minicells from the minicells generated by said first and said second telecommunications terminals;
- and
- a single PSTN access line connecting said multiplexer to an overlay network, wherein the overlay network routes the minicells containing voice data to a third telecommunications terminal and the minicells containing the non-voice data to a fourth telecommunications terminal, and wherein the third and the fourth telecommunications terminals operate independent of each other.
Dependencies are inferred from the claim text.