Implementing a hybrid wireless and coaxial cable network

• US 20050034159A1
• Filed: 09/07/2004
• Published: 02/10/2005
• Est. Priority Date: 12/20/2002
• Status: Abandoned Application

• Current Assignee: Texas Instruments, Inc.
• Original Assignee: Texas Instruments, Inc.
• Inventors: Bitran, Yigal, Ophir, Lior
• Application Number:
  US10/935,963
• Publication Number:
  US 20050034159A1
• Time in Patent Office: Days
• US Class Current: 725/78
• CPC Class Codes: H04L 12/2801 Broadband local area networks
• CPC Class Codes: H04L 12/2803 Home automation networks
• CPC Class Codes: H04L 2012/2841 Wireless
• CPC Class Codes: H04N 21/4126 The peripheral being portable, e.g. PDAs or mobile phones
• CPC Class Codes: H04W 88/08 Access point devices

Abstract

A home video network, and a home video and data network, utilizing wireless protocol communications over coaxial cable (CX) are disclosed. In the home video network, a main network station (10) includes video processing functionality, such as one or more of a DVD player, personal video recorder (PVR), and a set-top box (STB) for cable or satellite television reception. The main network station (10) also includes a matched splitter (27) that receives coaxial cable (CX) inputs, and provides low-pass filtered and high-pass filtered output. The low-pass filtered output (LF) corresponding to video signals is provided to the video processing functionality (20) and the high-pass filtered output (HF) corresponding to wireless protocol communications is provided to a wireless access point function (22). Other network stations and combinations of functions are also disclosed, including those that utilize a function switch (25) to switch between network communications over coaxial cable (CX) and communications over an antenna (A), in either a single BSS mode or a double BSS mode.

Claims

1. A home network, comprising:

coaxial cable;

a first network station, comprising;

a first coaxial connector coupled to coaxial cable;

a matched splitter, connected to the coaxial connector on one side, and on another side having first and second terminals; and

a wireless communications access point, coupled to a first terminal of the matched splitter, for processing wireless protocol communications for transmission and as received over the coaxial cable via the matched splitter; and

a second network station, comprising;

a coaxial connector coupled to coaxial cable;

a wireless communications station, coupled to the coaxial connector, for processing wireless protocol communications for transmission and as received over the coaxial cable via the matched splitter.

2. The network of claim 1, wherein the first network station further comprises:

a modem, coupled to the second terminal of the matched splitter, for demodulating data signals received over the coaxial cable and for providing digital data corresponding to the demodulated data signals to the wireless communications access point, and for modulating data signals received from the wireless communications access point and transmitting the modulated data signals over the coaxial cable.

3. The network of claim 2, wherein the modem is a cable modem.

4. The network of claim 2, wherein the modem comprises DSL customer premises equipment.

5. The network of claim 1, wherein the first network station further comprises:

a video processing function, coupled to the second terminal of the matched splitter, for receiving and processing television signals received over the coaxial cable.

6. The network of claim 5, wherein the wireless communications access point of the first network station is coupled to the video processing function;

and wherein the wireless communications access point is for converting wireless protocol communications to baseband digital data and forwarding the baseband digital data to the video processing function.

7. The network of claim 6, wherein the wireless communications access point is for converting baseband digital data from video processing function to wireless protocol communications and forwarding the wireless protocol communications to the coaxial cable.

8. The network of claim 7, wherein the second network station further comprises:

a video codec, coupled to the wireless communications access point;

and wherein the wireless communications station is for converting wireless protocol communications to baseband digital data and forwarding the baseband digital data to the video codec.

9. The network of claim 8, further comprising:

a video display, coupled to the video codec.

10. The network of claim 1, wherein the first network station further comprises:

an antenna; and

a function switch, for selectively coupling the wireless communications access point to the first terminal of the matched splitter or the antenna.

11. The network of claim 1, wherein the matched splitter comprises:

a first filter, coupled between the coaxial connector and the first terminal, for filtering frequencies in a first stop band;

a second filter, coupled between the coaxial connector and the second terminal, for filtering frequencies in a second stop band.

12. The network of claim 11, wherein the first network station further comprises:

a modem, coupled to the second terminal of the matched splitter, for demodulating data signals received over the coaxial cable and for providing digital data corresponding to the demodulated data signals to the wireless communications access point, and for modulating data signals received from the wireless communications access point and transmitting the modulated data signals over the coaxial cable.

13. The network of claim 11, wherein the first network station further comprises:

a video processing function, coupled to the second terminal of the matched splitter, for receiving and processing television signals received over the coaxial cable.

14. The network of claim 13, wherein the video processing function comprises a processor for processing video signals for a function selected from the group consisting of a set-top box, a digital video disk player, and a personal video recorder.

15. The network of claim 1, wherein the second network station further comprises:

an antenna; and

a function switch, for selectively coupling the wireless communications station to the first terminal of the matched splitter or the antenna.

16. The network of claim 15, further comprising:

a client station, for communicating wirelessly to the second network station.

17. The network of claim 1, further comprising:

a multimedia workstation, coupled to the wireless communications access point of the second network station.

18. The network of claim 17, wherein the wireless communications station is for converting wireless protocol communications to baseband digital data and forwarding the baseband digital data to the multimedia workstation.

19. A network station for communicating wireless protocol communications over coaxial cable, comprising:

a first coaxial connector for coupling to coaxial cable;

a matched splitter, connected to the coaxial connector on one side, and on another side having first and second terminals;

a first filter, coupled between the coaxial connector and the first terminal, for filtering frequencies in a first stop band;

a second filter, coupled between the coaxial connector and the second terminal, for filtering frequencies in a second stop band; and

a wireless communications function, coupled to a first terminal of the matched splitter, for processing wireless protocol communications for transmission and as received via the matched splitter.

20. The network station of claim 19, further comprising:

a modem, coupled to the second terminal of the matched splitter, for demodulating data signals received from the first coaxial connector and for providing digital data corresponding to the demodulated data signals to the wireless communications function, and for modulating data signals received from the wireless communications function and transmitting the modulated data signals over the coaxial cable.

21. The network station of claim 20, wherein the modem is a cable modem.

22. The network station of claim 20, wherein the modem comprises DSL customer premises equipment.

23. The network station of claim 19, further comprising:

a video processing function, coupled to the second terminal of the matched splitter, for receiving and processing television signals received over the coaxial cable.

24. The network station of claim 23, wherein the wireless communications function of the first network station is coupled to the video processing function;

and wherein the wireless communications function is for converting wireless protocol communications to baseband digital data and forwarding the baseband digital data to the video processing function.

25. The network station of claim 24, wherein the wireless communications function is for converting baseband digital data from video processing function to wireless protocol communications and forwarding the wireless protocol communications to coaxial cable via the coaxial connector.

26. The network station of claim 24, wherein the video processing function comprises a processor for processing video signals for a function selected from the group consisting of a set-top box, a digital video disk player, and a personal video recorder.

27. The network station of claim 19, wherein the second network station further comprises:

a video codec, coupled to the wireless communications access point;

and wherein the wireless communications function is for converting wireless protocol communications to baseband digital data and forwarding the baseband digital data to the video codec.

28. The network station of claim 19, further comprising:

an antenna; and

a function switch, for selectively coupling the wireless communications function to the first terminal of the matched splitter or the antenna.

29. The network station of claim 28, wherein the network station operates in a dual-BSS mode;

wherein the function switch selective couples the wireless communications function to the first terminal of the matched splitter or the antenna synchronously with the dual-BSS operation.

30. A matched video and data splitter, comprising:

a first coaxial connector for connecting to coaxial cable;

a first filter, coupled between the coaxial connector and a first terminal, for filtering frequencies in a first stop band; and

a second filter, coupled between the coaxial connector and a second terminal, for filtering frequencies in a second stop band.

31. The splitter of claim 30, further comprising:

a second coaxial connector at the first terminal.

32. The splitter of claim 30, further comprising:

an antenna connector at the second terminal, for connecting to an antenna connector of a wireless network device.

33. The splitter of claim 30, wherein the first coaxial connector presents a matched impedance to coaxial cable.

34. The splitter of claim 33, further comprising:

a second coaxial connector at the first terminal;

and wherein the second coaxial connector presents a matched impedance to coaxial cable.

35. A network filter, comprising:

a first coaxial connector for connecting to coaxial cable, and having an impedance matching that of the coaxial cable;

a high pass filter, coupled between the coaxial connector and a first terminal, for filtering frequencies in a stop band corresponding to television signals and data signals corresponding to those communicated by a television signal provider, and passing frequencies in a pass band at frequencies higher than those of the stop band; and

a second connector coupled to the high pass filter.

36. The network filter of claim 35, wherein the second connector is an antennal connector, for connecting to an antenna connector of a wireless network device.

37. The network filter of claim 36, wherein the second connector presents a matched impedance to the antenna connector of the wireless network device.

38. The network filter of claim 35, wherein the television signal provider is a cable television provider.

39. The network filter of claim 35, wherein the television signal provider is a satellite television provider.

40. A protection filter, comprising:

a first coaxial connector for connecting to coaxial cable, and having an impedance matching that of the coaxial cable;

a low pass filter, coupled between the coaxial connector and a first terminal, for filtering frequencies in a stop band, and passing frequencies in a pass band at frequencies lower than those of the stop band and corresponding to television signals and data signals corresponding to those communicated by a television signal provider; and

a second connector coupled to the high pass filter.

41. The protection filter of claim 40, wherein the second connector is a coaxial cable connector, and presents an impedance matching that of coaxial cable.

42. The protection filter of claim 40, wherein the television signal provider is a cable television provider.

43. The protection filter of claim 40, wherein the television signal provider is a satellite television provider.