Method and system for wireless video transmission via different interfaces

• US 9,842,564 B2
• Filed: 10/27/2011
• Issued: 12/12/2017
• Est. Priority Date: 10/28/2010
• Status: Expired due to Fees

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Shao, Huai-Rong, Hsu, Ju-Lan, Ngo, Chiu
• Primary Examiner(s): Bruckart, Benjamin R
• Assistant Examiner(s): THOMAS, JASON M
• Application Number:
  US13/283,289
• Publication Number:
  US 20120133828A1
• Time in Patent Office: 2,238 Days
• Field of Search: 725 74, 725 78, 725 80, 725 81, 725 85, 375219, 375220, 375295, 375299, 375316, 375377
• CPC Class Codes: G06F 13/385 for adaptation of a particular data processing system to different peripheral devices
• CPC Class Codes: G06F 3/1454 involving copying of the display data of a local workstation or window to a remote workstation or window so that an actual copy of the data is displayed simultaneously on two or more displays, e.g. teledisplay
• CPC Class Codes: G09G 2370/10 Use of a protocol of communication by packets in interfaces along the display data pipeline
• CPC Class Codes: G09G 2370/12 Use of DVI or HDMI protocol in interfaces along the display data pipeline
• CPC Class Codes: G09G 2370/16 Use of wireless transmission of display information
• CPC Class Codes: G09G 5/006 Details of the interface to the display terminal specific for a display terminal using a CRT G09G1/167; using a flat panel G09G3/2096; circuits for interfacing with colour displays G09G5/04
• CPC Class Codes: H04L 65/1023 Media gateways
• CPC Class Codes: H04N 19/40 using video transcoding, i.e. partial or full decoding of a coded input stream followed by re-encoding of the decoded output stream
• CPC Class Codes: H04N 21/43632 involving a wired protocol, e.g. IEEE 1394 high-speed IEEE 1394 serial bus H04L12/40052
• CPC Class Codes: H04N 7/01 Conversion of standards , e.g. involving analogue television standards or digital television standards processed at pixel level
• CPC Class Codes: H04W 92/02 Inter-networking arrangements

Abstract

A method and system is provided for wireless transmission of audio/video information via different wired AV interface formats. A method and system for wireless communication of audio/video AV information between AV devices includes receiving audio/video (AV) information from a first AV module via a first wired AV interface in a first AV device, applying interface dependent processing to the AV information, and transmitting the processed AV information from a wireless transceiver over a wireless channel to a wireless receiver of a second AV device. The second AV device includes a second wired AV interface and the first AV interface is of a different type than the second interface device.

Claims

1. A method of wireless communication of audio/video (AV) information between AV devices, comprising:

receiving AV information from a first AV interface via a first wired AV interface in a first AV device;

performing interface dependent processing on the AV information that comprises separation of AV information into audio data, video data and interface specific control data for a first AV interface type, and conversion of the interface specific control data, the audio data and the video data, wherein the interface specific control data is converted to interface-independent control information;

converting a first packet format to a second packet format for packetizing the audio data, the video data and the interface-independent control information; and

transmitting the audio data, the video data and the interface-independent control information in the second packet format over a wireless channel to a wireless receiver of a second AV device including a second wired AV interface for a second AV interface type that is a different type of AV wired interface from the first AV interface type;

wherein;

the audio data, video data and the interface-independent control information are transmitted from a wireless transceiver over the wireless channel;

a first portion of the interface-independent control information is transmitted in data islands during horizontal and vertical blanking periods in one or more frames; and

a second portion of the interface-independent control information is transmitted via an inter-integrated circuit (I²C) interface or an integrated interchip sound (I²S) interface.

2. The method of claim 1, wherein a first interface dependent processing (IDP) layer connects the first AV device to the wireless transceiver, a second IDP layer couples the second AV device to the wireless receiver, and an IDP controller comprising the first IDP layer and the second IDP layer provides processing for wirelessly communicating the AV information between the first AV device and the second AV device.

3. The method of claim 2, wherein the conversion comprises converting the audio data, the video data and the interface-independent control information to AV data for the second AV device for the second wired AV interface type.

4. The method of claim 3, wherein converting of the audio data, the video data and the interface independent control information to the AV data for the second wired AV interface type and the converting from the first packet format to the second packet format is performed before transmitting the interface-independent control information on the wireless channel from the first AV device to the second AV device.

5. The method of claim 2, further comprising:

performing IDP on the AV information at the first IDP layer;

wherein;

the first IDP layer utilizing an IDP service access point (IDP_SAP) interface to interact with a station management entity (SME) of the first AV device; and

the first IDP layer utilizing a protocol adaptation layer service access point (PAL_SAP) interface to interact with a protocol adaptation layer (PAL) of the first AV device.

6. The method of claim 5, wherein:

the IDP_SAP interface is used for control/management information exchange between the first IDP layer and the SME, wherein the SME is configured to handle control/management information from the first IDP layer; and

PAL_SAP interface is used for audio/video data information exchange between the first IDP layer and the PAL.

7. The method of claim 1, wherein:

when different types of AV information are received via the first wired AV interface, the separation of AV information comprises providing, upon separation, the audio data, video data and the interface specific control data to a protocol adaptation layer of the wireless transceiver for processing.

8. The method of claim 7, wherein the conversion of the interface specific control data, the audio data and the video data ensures communication between the first AV device and the second AV device over the wireless channel.

9. The method of claim 7, further comprising:

causing conversion of the interface-independent control information to corresponding interface-dependent control information for the second AV device; and

causing composition of AV information from the transmitted interface-independent control information, the audio data and the video data at a protocol adaptation layer of the wireless receiver of the second AV device, wherein the composition is based on placing the audio data and the first portion of the interface-independent control information into data islands of one or more high-definition multimedia interface (HDMI) frames and placing the video data into a video area of the one or more HDMI frames and providing the one or more HDMI frames to a second AV interface via the second wired AV interface at the second AV device.

10. The method of claim 7, wherein the different types of AV information include compressed video, uncompressed or compressed audio and control data.

11. The method of claim 1, further comprising:

packetizing the audio data, the video data and the corresponding interface-dependent control information from the second packet format to the first packet format after the converting of the interface-independent control information to the corresponding interface-dependent control information for the second AV device.

12. The method of claim 1, wherein each AV device comprises a mmW wireless transceiver.

13. The method of claim 1, wherein the AV information comprises uncompressed video information.

14. The method of claim 1, further comprising:

performing interface dependent processing at a station management entity (SME) of the first AV device.

15. The method of claim 1, further comprising:

performing interface dependent processing at protocol adaptation layer (PAL) of the first AV device; and

utilizing interface-specific service access point interfaces for interaction with a station management entity (SME), the PAL and a PAL management entity (PALME) of the first AV device.

16. The method of claim 1, wherein the first wired AV interface uses first interface specific information and the second wired AV interface uses second interface specific information.

17. The method of claim 16, wherein the first interface specific information includes different data format and control data for the AV information than the second interface specific information.

18. A wireless system for wireless communication of audio/video (AV) information, comprising:

a first AV device having a transceiver for wireless communication; and

an independent interface processing (IDP) controller that receives AV information from a first AV interface via a first wired AV interface in the first AV device, wherein the IDP controller performs interface dependent processing on the AV information that comprises separation of AV information into audio data, video data and interface specific control data for the first wired AV interface, and conversion of the audio data, the video data and the interface specific control data, the interface specific control data is converted to interface-independent control information, and the IDP controller converts a first packet format to a second packet format for packetizing the audio data, the video data and the interface-independent control information and provides the audio data, the video data and the interface-independent control information in the second packet format to the transceiver of the first AV device for wireless transmission;

wherein;

the audio data, video data and the interface-independent control information are transmitted from the wireless transceiver of the first AV device over the wireless channel;

a first portion of the interface-independent control information is transmitted in data islands during horizontal and vertical blanking periods in one or more frames; and

a second portion of the interface-independent control information is transmitted via an inter-integrated circuit (I²C) interface or an integrated interchip sound ( I²S) interface.

19. The system of claim 18, wherein the IDP controller comprises a first IDP layer coupled to the first AV device, and the IDP controller provides processing for wirelessly communicating the AV information between the first AV device and a second AV device having a second wired AV interface, wherein the first wired AV interface is a different interface type than the second wired AV interface.

20. The system of claim 19, wherein:

when differing types of AV information are received via the first wired AV interface, the IDP controller performs the separation of the AV information and provides the audio data, and the video data and the interface specific control data to a protocol adaptation layer of the first AV device for processing.

21. The system of claim 20, wherein:

the IDP controller causes conversion of the interface-independent control information to corresponding interface-dependent control information for the second AV device;

the second AV device includes the second wired AV interface that uses different format for the AV information than the first wired AV interface; and

the conversion of the audio data, the video data and the interface specific control data ensures the first AV device and the second AV device are able to communicate over the wireless channel.

22. The system of claim 20, wherein:

a protocol adaptation layer of the second AV device reconstructs a frame structure from the audio data, the video data and the interface-independent control information received by the second AV device, by placing the audio data and the first portion of the interface-independent control information into data islands of the one or more frames that comprises one or more high-definition multimedia interface (HDMI) frames, and placing the video data into a video area of the one or more HDMI frames and providing the one or more HDMI frames to a second AV interface via the second wired AV interface at the second AV device.

23. The system of claim 20, wherein said differing types of AV information include compressed video, uncompressed or compressed audio and control data.

24. The system of claim 20, further comprising:

an IDP service access point (IDP_SAP) interface, wherein the IDP controller utilizes the IDP_SAP interface to interact with a station management entity (SME); and

a protocol adaptation layer service access point (PAL_SAP) interface, wherein the IDP controller utilizes the PAL_SAP interface to interact with a protocol adaptation layer (PAL).

25. The system of claim 24, wherein:

the IDP_SAP interface is used for control/management information exchange between the IDP controller and the SME;

the SME handles control/management information from IDP controller; and

PAL_SAP interface is used for audio/video data information exchange between the IDP controller and the PAL.

26. The system of claim 19, wherein:

the IDP controller converts the audio data, the video data and the interface-independent control information corresponding to an interface type for the second wired AV interface.

27. The system of claim 26, wherein conversion by the IDP controller is performed before transmitting the interface-independent control information on the wireless channel from the first AV device to the second AV device.

28. The system of claim 26, wherein the IDP controller packetizes the audio data, the video data and the corresponding interface-dependent control information from the second packet format to the first packet format after the conversion of the interface-independent control information to the corresponding interface-dependent control information for the second AV device.

29. The system of claim 18, wherein each AV device comprises a mmW wireless transceiver.

30. The system of claim 18, wherein the AV information comprises uncompressed video information.

31. The system of claim 18, wherein the IDP controller performs interface dependent processing at a station management entity (SME).

32. The system of claim 18, wherein the IDP controller performs interface dependent processing at protocol adaptation layer (PAL), and to use interface-specific service access point interfaces for interaction with a station management entity (SME), PAL and a PAL management entity (PALME).

33. A wireless station for wireless communication of audio/video (AV), comprising:

a wireless transceiver for wireless communication via a wireless channel;

an AV interface; and

an independent interface processing (IDP) controller;

wherein;

the IDP controller exchanges audio/video (AV) information with the AV interface via a first wired AV interface;

the IDP controller exchanges AV information with the wireless transceiver;

the IDP controller performs interface dependent processing on the exchanged AV information comprising separation of AV information into audio data, video data and interface specific control data, and conversion of the audio data, the video data and the interface specific control data, the interface specific control data is converted to interface-independent control information, the IDP controller converts a first packet format to a second packet format for packetizing the audio data, the video data and the interface-independent control information and communicates the audio data, the video data and the interface-independent control information in the second packet format with a wireless device having a second wired AV interface of a different type than the first wired AV interface;

the audio data, video data and the interface-independent control information are transmitted from the wireless transceiver over the wireless channel;

a first portion of the interface-independent control information is transmitted in data islands during horizontal and vertical blanking periods in one or more frames; and

a second portion of the interface-independent control information is transmitted via an inter-integrated circuit (I²C) interface or an integrated interchip sound (I²S) interface.

34. The wireless station of claim 33, wherein:

the IDP controller is configured to cause conversion of the interface-independent control information to corresponding interface-dependent control information for the second wired AV interface;

the second wired AV interface uses different data format and control for the AV information than the first wired AV interface of the wireless station;

the AV interface comprises an AV source interface; and

the IDP controller receives AV information from the AV source interface, performs interface dependent processing on the AV information, and provides the audio data, the video data and the interface-independent control information to the wireless transceiver for transmission over the wireless channel to the wireless device for use via the second wired AV interface.

35. The wireless station of claim 34, wherein a first IDP layer connects a first AV device to the wireless transceiver, the IDP controller comprises the first IDP layer and a second IDP layer, and the IDP controller provides the interface dependent processing for wirelessly communicating the audio data, the video data and the interface-independent control information between the first AV device and the second AV device.

36. The wireless station of claim 33, wherein:

the AV interface comprises an AV sink interface;

the IDP controller receives AV information from the wireless transceiver based on wireless communication with the wireless device; and

the IDP controller performs interface dependent processing on the AV information, and provides the audio data, the video data and the interface-independent control information to the AV sink interface.