Unified DSL transceiver
AssigneeGlobespan, Inc.
InventorsArnold Muralt, Christian Eichrodt
Life of this patent
Estimating the term…
Abstract
A single unified digital subscriber line (DSL) transceiver can be used for DSL applications, can be integrated on a single board or chip, or within a less board space. An embodiment of the unified DSL transceiver comprises a transmit circuit coupled to a line driver/transformer circuit. The line driver/transformer circuit is coupled to a receive circuit that comprises a switching circuit. A signal is transmitted from the transmit circuit to the line driver/transformer circuit; the switching circuit is configured based on DSL applications, and the signal is propagated from the line driver/transformer circuit to a line.
Claims15
A unified digital subscriber line (DSL) transceiver, comprising:
- a transmit circuit coupled to a line driver/transformer circuit;
- a receive circuit coupled to the line driver/transformer circuit, the receive circuit comprising a switching circuit, the switching circuit enabling operation of the DSL transceiver for DSL applications;
- and
- a transmit filter circuit, wherein the transmit filter circuit is coupled to the transmit circuit for filtering undesirable components in asymmetric DSL (ADSL) signals that pass through the unified DSL transceiver, the transmit filter circuit coupled to the transmit circuit for bypassing symmetric DSL (SDSL) signals that pass through the unified DSL transceiver.
A method for using a single transceiver for digital subscriber line (DSL) applications, comprising the steps of:
- receiving a signal into a line driver/transformer circuit, the line driver/transformer circuit coupled to a transmit circuit;
- propagating the received signal to a receive circuit, the receive circuit comprising a switching circuit and a resistor circuit;
- and
- configuring the switching circuit based on DSL applications by opening and closing switches, which are located in the switching circuit, in a first manner if the unified DSL transceiver is used for asymmetric DSL over plain old telephone service (ADSL over POTS) applications.
A unified DSL transceiver comprising:
- means for receiving a signal into a line driver/transformer circuit, the line driver/transformer circuit coupled to a transmit circuit;
- means for propagating the received signal to a receive circuit, the receive circuit comprising a switching circuit and a resistor circuit;
- means for configuring the switching circuit based on DSL applications;
- and
- means for opening and closing switches, which are located in the switching circuit, in a first manner if the unified DSL transceiver is used for asymmetric DSL over plain old telephone service (ADSL over POTS) applications.
Dependencies are inferred from the claim text.