NETWORK SIGNAL PROCESSING APPARATUS AND SIGNAL PROCESSING METHOD THEREOF

• US 20100172371A1
• Filed: 01/08/2010
• Published: 07/08/2010
• Est. Priority Date: 01/08/2009
• Status: Abandoned Application

• Current Assignee: Realtek Semiconductor Corp.
• Original Assignee: Realtek Semiconductor Corp.
• Inventors: Huang, Liang-Wei, Tseng, Ta-Chin, Yu, Ting-Fa, Fang, Li-Wei
• Application Number:
  US12/684,121
• Publication Number:
  US 20100172371A1
• Time in Patent Office: Days
• US Class Current: 370/463
• CPC Class Codes: H04L 25/0266 Arrangements for providing Galvanic isolation, e.g. by means of magnetic or capacitive coupling

Abstract

A network signal processing apparatus includes: a transceiver for transmitting or receiving a network signal, and a transformer coupled to the transceiver and a network connecting port for transmitting or receiving the network signal. The transformer includes: a first coil, which is coupled to the transceiver and has a first turn number; and a second coil, which is coupled to the network connecting port and has a second turn number. The second turn number is different from the first turn number.

Claims

1. A network signal processing apparatus, comprising:

a transceiver for transmitting or receiving a network signal; and

a transformer, coupled to the transceiver and a network connecting port, for transmitting or receiving the network signal, wherein the transformer comprises;

a first coil, coupled to the transceiver, having a first turn number; and

a second coil, coupled to the network connecting port, having a second turn number;

wherein the second turn number is different from the first turn number.

2. The apparatus of claim 1, wherein the transceiver comprises a transmitting circuit configured for generating a first network signal to the first coil, the second coil generates a second network signal to the network connecting port according to the first network signal, and the second turn number is larger than the first turn number.

3. The apparatus of claim 1, wherein the transceiver comprises a receiving circuit configured for receiving a first network signal outputted from the first coil, and the second turn number is smaller than the first turn number.

4. The apparatus of claim 1, wherein the transformer further comprises:

a third coil, coupled to the transceiver, having a third turn number; and

a fourth coil, coupled to the network connecting port, having a fourth turn number;

wherein the fourth turn number is different from the third turn number, and the fourth coil is not connected with the second coil in series.

5. The apparatus of claim 4, wherein the transceiver further comprises:

a transmitting circuit, coupled to the first coil, for transmitting a first network signal to the first coil; and

a receiving circuit, coupled to the third coil, for receiving a second network signal from the third coil;

wherein the first turn number is less than the second turn number, and the third turn number is more than the fourth turn number.

6. The apparatus of claim 1, wherein the transceiver is implemented utilizing a semiconductor process which is more advanced than a 65 nm process.

7. The apparatus of claim 1, wherein the transceiver is operated with a supply voltage lower than 3.3 volts.

8. The apparatus of claim 1, further comprising:

an interior circuit, coupled to the transceiver, for processing the network signal;

wherein the transceiver is operated with a first supply voltage;

the interior circuit is operated with a second supply voltage; and

the second supply voltage is lower than the first supply voltage.

9. The apparatus of claim 8, wherein the interior circuit is a media access control circuit.

10. The apparatus of claim 1, wherein the network connecting port is an RJ45 network connecting port.

11. The apparatus of claim 1, being applied to an Ethernet.

12. A network signal processing method, comprising:

providing a transceiver for transmitting or receiving a network signal; and

providing a transformer between the transceiver and a network connecting port, for transmitting or receiving the network signal, wherein the transformer comprises;

a first coil, coupled to the transceiver, having a first turn number; and

a second coil, coupled to the network connecting port, having a second turn number;

wherein the second turn number is different from the first turn number.

13. The method of claim 12, wherein the transceiver utilizes a transmitting circuit to generate a first network signal to the first coil, the second coil generates a second network signal to the network connecting port according to the first network signal, and the second turn number is more than the first turn number.

14. The method of claim 12, wherein the transceiver utilizes a receiving circuit to receive a first network signal outputted from the first coil, and the second turn number is less than the first turn number.

15. The method of claim 12, wherein the transformer further comprises:

a third coil, coupled to the transceiver, having a third turn number; and

a fourth coil, coupled to the network connecting port, having a fourth turn number;

wherein the fourth turn number is different from the third turn number, and the fourth coil is not connected with the second coil in series.

16. The method of claim 15, wherein the transceiver comprises:

a transmitting circuit, coupled to the first coil, for transmitting a first network signal to the first coil; and

a receiving circuit, coupled to the third coil, for receiving a second network signal from the third coil;

wherein the first turn number is less than the second turn number, and the third turn number is more than the fourth turn number.

17. The method of claim 12, wherein the transceiver is implemented utilizing a semiconductor process which is more advanced than a 65 nm process.

18. The method of claim 12, further comprising:

providing a media access control circuit to process the network signal;

wherein the transceiver is operated with a first supply voltage;

the media access control circuit is operated with a second supply voltage; and

the second supply voltage is lower than the first supply voltage.

19. The method of claim 18, wherein the network connecting port is an RJ45 network connecting port.

20. The method of claim 18, being applied to an Ethernet.