Device and method for isolating voice and data signals on a common carrier

• US 5,930,340 A
• Filed: 07/07/1997
• Issued: 07/27/1999
• Est. Priority Date: 07/07/1997
• Status: Expired due to Term

• Current Assignee: GlobalFoundries, Inc.
• Original Assignee: Advanced Micro Devices SDN Berhad (Advanced Micro Devices, Inc.)
• Inventors: Bell, Russell W.
• Primary Examiner(s): Chan, Wing F.
• Application Number:
  US08/888,870
• Time in Patent Office: 750 Days
• Field of Search: 379/90.01, 379/93.01-93.09, 379/93.14, 379/93.21, 379/93.28, 379/93.37, 379/110.01, 379/156-173, 379/387, 370/445, 370/450, 370/481, 370/488-497, 370/480, 375/288
• US Class Current: 379/93.08
• CPC Class Codes: H04M 11/062 using different frequency bands for speech and other data

Abstract

A device and system for isolating voice and data signals transmitted on an internal telephone wire network is disclosed. The device further includes voice and/or data connectors coupled to the network. One or more filters are coupled between the network and the voice and data connectors to respectively filter out data and voice signals being transmitted on the network. The internal telephone wire network may be used as a transmission medium for local data transfers. The local data transfers may be performed using digital subscriber line data transmission technologies. The device may be adapted to connect to a standard telephone connector of the network.

Claims

1. A modular device for isolating voice signals and out-of-band data signals transmitted via a digital subscriber line (xDSL) transmission scheme on an internal telephone wire network having a plurality of standard telephone connectors, the modular device comprising:

a common connector having a male connector plug adapted to connect to a female-receptacle standard telephone connector of the internal telephone wire network, the common connector receiving the voice signals and the out-of-band data signals from the internal wire network when connected to the standard telephone connector;

a data connector having a female receptacle configuration substantially similar to the standard telephone connector;

a voice connector having a female receptacle configuration substantially similar to the standard telephone connector;

a first filter coupled between the common connector and the data connector to filter out voice signals received by the common connector and to pass out-of-band data signals received by the common connector to the data connector;

a second filter coupled between the common connector and the voice connector to filter out the out-of-band data signals received by the common connector and to pass the voice signals received by the common connector to the voice connector; and

wherein the common connector, the data connector, the voice connector, and the first and second filters are collectively housed within the modular device which is removably positioned at a point of connection to the internal telephone wire network; and

wherein the first filter and the second filter are active filters supplied by a power source housed within the modular device.

2. A device as recited in claim 1, wherein the power source comprises a trickle charger.

3. A device as recited in claim 1, wherein the power source comprises a battery.

4. A device as recited in claim 1, wherein the power source comprises a transformer.

5. A system as recited in claim 1, wherein the xDSL transmission scheme comprises an asymmetric digital subscriber line transmission scheme.

6. A modular device as recited in claim 1, wherein the first filter comprises an active high pass filter and the second filter comprises an active low pass filter.

7. A device as recited in claim 1, wherein the common connector, the data connector and the voice connector comprise RJ11 telephone connectors.

8. A system for using a internal telephone wire network as a transmission medium for concurrently transmitting both voice band signals and data band signals, the data band signals being transmitted out-of-band with the voice band signals, the system comprising:

an internal telephone wire network provided within a customer premise and having an interface for coupling the internal wire network to a subscriber line, the subscriber line being used to connect the customer premise to a central office of a telephone service provider;

a modular splitter capable of being removably connected to the internal wire network, the modular splitter comprising;

(a) a male connector member removably connectable to the internal wire network interface;

(b) a voice connector having a voice connector receptacle;

(c) a data connector having a data connector receptacle;

(d) a voice device coupled to the internal telephone wire network via the male connector member and the voice connector to communicate with the central office using voice band signals;

(e) a voice band pass filter coupled between the male connector member and the voice connector to filter out data band signals transmitted on the internal telephone wire network;

(f) a first data device coupled to the internal telephone wire network via the male connector member and the data connector to communicate with a second data device using data band signals;

(g) a data band pass filter coupled between the male connector member and the data connector to filter out voice band signals transmitted on the internal telephone wire network; and

wherein the voice band pass filter and the data band pass filter are active filters supplied by a power source housed within the modular splitter.

9. A system as recited in claim 8, wherein the voice band signals and the data band signals are transmitted on the internal telephone wire network using a digital subscriber line (xDSL) transmission scheme.

10. A system as recited in claim 9, wherein the xDSL transmission scheme comprises an asymmetric digital subscriber line transmission scheme.

11. A system as recited in claim 9, wherein the first data device comprises an xDSL modem.

12. A system as recited in claim 9, wherein the first and second data devices include xDSL modems.

13. A system as recited in claim 9, wherein the first data device comprises an xDSL modem and the second data device comprises a remote xDSL modem, the remote xDSL modem communicating with the internal telephone wire network via the subscriber line.

14. A system as recited in claim 12, wherein the second data device resides within the customer premises.

15. A system as recited in claim 12, wherein the second data device resides at the central office of the telephone service provider.