Digital isolation barrier as interface bus for modems

• US 7,330,544 B2
• Filed: 04/29/2002
• Issued: 02/12/2008
• Est. Priority Date: 03/20/2002
• Status: Active Grant

• Current Assignee: Synaptics Incorporated
• Original Assignee: Conexant Systems Incorporated (Synaptics Incorporated)
• Inventors: D'Angelo, Wilfrid C., Latu, Jean F.
• Primary Examiner(s): SINGH, RAMNANDAN P
• Application Number:
  US10/137,601
• Publication Number:
  US 20030179818A1
• Time in Patent Office: 2,115 Days
• Field of Search: 37939901-41304, 375/222
• US Class Current: 379/399.01
• CPC Class Codes: H04M 11/06 Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors

Abstract

The present application provides a variety of exemplary embodiments, such as modem systems, modem devices, modem connectors, host connectors, communication systems and communication cards. For example, there is provided a modem device for use to enable a host to communicate over a communication line, wherein the host has a host connector. The modem device comprises a line side circuitry capable of interfacing with the communication line; and a digital isolation barrier (DIB) coupled to the line side circuitry, the digital isolation barrier capable of being connected to a modem connector for connection to the host connector, wherein the digital isolation barrier is capable of isolating the modem connector from the line side circuitry. Moreover, the line side circuitry may include a line side DIB interface for communication with the digital isolation barrier. Also, the modem connector may be connected to the digital isolation barrier via one or more lines.

Claims

1. A modem system for use to enable a host to communicate over a communication line, said host having a host connector, said modem system comprising:

a line side circuitry capable of interfacing with said communication line;

a digital isolation barrier (DIB) coupled to said line side circuitry, said digital isolation barrier being configured to connect to a modem connector, said digital isolation barrier isolating said modem connector from said line side circuitry, said modem connector being configured to connect to said host connector; and

a telephone line jack having an opening for receiving said communication line, said opening defining a plurality of side walls of said telephone line jack and said opening being configured to receive said communication line, one or more of said plurality of side walls of said telephone line jack being populated with components of said line circuitry and said digital isolation barrier.

2. The modem system of claim 1, wherein said digital isolation barrier is connected to said modem connector.

3. The modem system of claim 1, wherein said modem connector is connected to said host connector.

4. The modem system of claim 1, wherein said line side circuitry includes a line side DIB interface for communication with said digital isolation barrier.

5. The modern system of claim 1, wherein said digital isolation barrier is coupled to said line side circuitry only via a plurality of lines consisting of two lines of data and control and two lines of power and clock.

6. The modem system of claim 1, wherein said digital isolation barrier is coupled to said line side circuitry only via a plurality of lines selected from a group consisting of two lines of data and control and three lines of power, ground and clock.

7. The modem system of claim 1, wherein said modem connector is connected to said digital isolation barrier only via three lines consisting of two lines of data and control and one line of clock.

8. The modem system of claim 1, wherein said modem connector is connected to said digital isolation barrier only via five lines consisting of two lines of data and control, one line of clock, one line of power and one line of ground.

9. The modem system of claim 1, wherein said modem connector is connected to said digital isolation barrier only via a single differential pair of lines of data and control.

10. The modem system of claim 1, wherein said modem connector is connected to said digital isolation barrier only via said single differential pair of lines of data and control and one ground line.

11. The modem system of claim 1, wherein said modem connector is connected to said digital isolation barrier only via four lines consisting of two lines of data and control, one line of clock and one line of power.

12. The modem system of claim 1, wherein said digital isolation barrier is connected to said modem connector via a direct wire connection, and wherein said modem connector is capable of being connected to said host connector by extending said direct wire connection.