Method of transmitting video data for wirelessly transmitting three-dimensional video data

• US 20100289872A1
• Filed: 12/29/2009
• Published: 11/18/2010
• Est. Priority Date: 05/14/2009
• Status: Active Grant

• Current Assignee: Panasonic Corporation (Panasonic Holdings Corporation)
• Original Assignee: Panasonic Corporation (Panasonic Holdings Corporation)
• Inventors: Funabiki, Makoto, Ohue, Hiroshi, Mitani, Hiroshi, Tatsuta, Akihiro, Nishio, Toshiroh
• Granted Patent: US 8,427,525 B2
• Time in Patent Office: Days
• US Class Current: 348/43
• CPC Class Codes: G09G 2370/04 Exchange of auxiliary data, i.e. other than image data, between monitor and graphics controller
• CPC Class Codes: G09G 2370/042 for monitor identification
• CPC Class Codes: G09G 2370/047 using display data channel standard [DDC] communication
• 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 3/003 to produce spatial visual effects
• 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: H04N 13/178 Metadata, e.g. disparity information
• CPC Class Codes: H04N 13/194 Transmission of image signals

Abstract

A sink device (120) transmits a video information message to the source device (110), the video information message including video format information identifiers for identifying video formats supported by the sink device (120), which are selected from among a plurality of video format information identifiers for identifying video formats each including a resolution of the video data and a type of the video data, and a three-dimensional transmission method for three-dimensional video data when the type of the video data is the three-dimensional video data including first and second video frame data.

Claims

1-16. -16. (canceled)

17. A sink device for a wireless communication system for wirelessly transmitting video data from a source device to the sink device,

wherein the sink device comprises a first controller for transmitting a video information message to the source device, the video information message including video format information identifiers for identifying video formats supported by the sink device, which are selected from among a plurality of video format information identifiers for identifying video formats each including a resolution of the video data and a type of the video data, and a three-dimensional transmission method for three-dimensional video data when the type of the video data is the three-dimensional video data including first and second video frame data.

18. The sink device as claimed in claim 17,

wherein the video information message further includes data representing whether or not the sink device supports the three-dimensional video data.

19. The sink device as claimed in claim 17,

wherein the first controller transmits an extended video information message including data representing whether or not the sink device supports the three-dimensional video data, to the source device.

20. The sink device as claimed in claim 17,

wherein the three-dimensional transmission method is information for identifying parameters for combining the first video frame data and the second video frame data into combined video frame data using a predetermined combining method by the source device.

21. The sink device as claimed in claim 17,

wherein the resolution of the video data represents a number of vertical active pixels, a number of horizontal active pixels, a scanning method, and a field rate of the video data.

22. The sink device as claimed in claim 17, further comprising a first storage device for previously storing:

(1) a 2D detailed timing information table showing a relation between (a) video format information identifiers of two-dimensional video data including third video frame data and (b) parameters for generating two-dimensional video frame data based on the two-dimensional video data for every video frame;

(2) a first 3D detailed timing information table showing a relation between (a) the video format information identifiers of the three-dimensional video data and (b) parameters for combining the first video frame data and the second video frame data into first combined video frame data, which does not include a blanking interval, using a predetermined first combining method for every video frame; and

(3) a second 3D detailed timing information table showing a relation between (a) the video format information identifiers of the three-dimensional video data and (b) parameters for combining the first video frame data and the second video frame data into second combined video frame data, which includes the blanking interval, using a predetermined second combining method for every video frame,

wherein, upon receiving the video data from the source device, (a) when the type of the video data is the two-dimensional video data, the first controller selects the 2D detailed timing information table, (b) when the type of the video data is the three-dimensional video data and the video data is coded, the first controller selects the first 3D detailed timing information table, and (c) when the type of the video data is the three-dimensional video data and the video data is not coded, the first controller selects the second 3D detailed timing information table, and

wherein the first controller refers to a selected detailed timing information table based on the video format information identifier of the video data so as to decide parameters for decoding the video data, and decodes the video data using decided parameters.

23. The sink device as claimed in claim 17, further comprising a first storage device for previously storing:

(1) a 2D detailed timing information table showing a relation between (a) video format information identifiers of two-dimensional video data including third video frame data and (b) parameters for generating two-dimensional video frame data based on the two-dimensional video data for every video frame;

(2) a first 3D detailed timing information table showing a relation between (a) the video format information identifiers of the three-dimensional video data and (b) parameters for combining the first video frame data and the second video frame data into first combined video frame data, which does not include a blanking interval, using a predetermined first combining method for every video frame; and

(3) a second 3D detailed timing information table showing a relation between (a) the video format information identifiers of the three-dimensional video data and (b) parameters for combining the first video frame data and the second video frame data into second combined video frame data, which includes the blanking interval, using a predetermined second combining method for every video frame,

wherein the first controller receives a device information message including data representing whether or not the source device supports an HDMI (High-Definition Multimedia Interface) pass-through mode specified in WirelessHD from the source device, and identifies whether or not the source device supports the HDMI pass-through mode based on the device information message,

wherein, upon receiving the video data from the source device, (a) when the type of the video data is the two-dimensional video data, the first controller selects the 2D detailed timing information table, (b) when the type of the video data is the three-dimensional video data and the source device does not support the HDMI pass-through mode, the first controller selects the first 3D detailed timing information table, and (c) when the type of the video data is the three-dimensional video data and the source device supports the HDMI pass-through mode, the first controller selects the second 3D detailed timing information table, and

wherein the first controller refers to a selected detailed timing information table based on the video format information identifier of the video data so as to decide parameters for decoding the video data, and decodes the video data using decided parameters.

24. A source device for a wireless communication system for wirelessly transmitting video data from the source device to a sink device,

wherein the source device comprises a second controller for receiving a video information message from the sink device, the video information message including video format information identifiers for identifying video formats supported by the sink device, which are selected from among a plurality of video format information identifiers for identifying video formats each including a resolution of the video data and a type of the video data, and a three-dimensional transmission method for three-dimensional video data when the type of the video data is the three-dimensional video data including first and second video frame data,

wherein the second controller selects one video format information identifier of the video format information identifiers included in a received video format message, generates video data having a video format corresponding to a selected video format information identifier, and transmits a generated video data to the sink device.

25. The source device as claimed in claim 24,

wherein the video information message further includes data representing whether or not the sink device supports the three-dimensional video data.

26. The source device as claimed in claim 24,

wherein the second controller receives an extended video information message including data representing whether or not the sink device supports the three-dimensional video data, from the sink device.

27. The source device as claimed in claim 24,

wherein the three-dimensional transmission method is information for identifying parameters for combining the first video frame data and the second video frame data into combined video frame data using a predetermined combining method by the source device.

28. The source device as claimed in claim 24,

wherein the resolution of the video data represents a number of vertical active pixels, a number of horizontal active pixels, a scanning method, and a field rate of the video data.

29. The source device as claimed in claim 24, further comprising a second storage device for previously storing:

(1) a 2D detailed timing information table showing a relation between (a) video format information identifiers of two-dimensional video data including third video frame data and (b) parameters for generating two-dimensional video frame data based on the two-dimensional video data for every video frame;

(2) a first 3D detailed timing information table showing a relation between (a) the video format information identifiers of the three-dimensional video data and (b) parameters for combining the first video frame data and the second video frame data into first combined video frame data, which does not include a blanking interval, using a predetermined first combining method for every video frame; and

(3) a second 3D detailed timing information table showing a relation between (a) the video format information identifiers of the three-dimensional video data and (b) parameters for combining the first video frame data and the second video frame data into second combined video frame data, which includes the blanking interval, using a predetermined second combining method for every video frame,

wherein, upon transmitting the video data to the sink device, (a) when the type of the video data is the two-dimensional video data, the second controller selects the 2D detailed timing information table, (b) when the type of the video data is the three-dimensional video data and the sink device supports coded three-dimensional video data, the second controller selects the first 3D detailed timing information table, and (c) when the type of the video data is the three-dimensional video data and the sink device does not support the coded three-dimensional video data, the second controller selects the second 3D detailed timing information table, and

wherein the second controller refers to a selected detailed timing information table based on the video format information identifier of the video data so as to decide parameters for generating one of the two-dimensional video frame data, the first combined video frame data and the second combined video frame data based on the video data, generates one of the two-dimensional video frame data, the first combined video frame data and the second combined video frame data based on the video data using decided parameters, and transmits a generated combined data to the sink device.

30. The source device as claimed in claim 24, further comprising a second storage device for previously storing:

(1) a 2D detailed timing information table showing a relation between (a) video format information identifiers of two-dimensional video data including third video frame data and (b) parameters for generating two-dimensional video frame data based on the two-dimensional video data for every video frame;

(2) a first 3D detailed timing information table showing a relation between (a) the video format information identifiers of the three-dimensional video data and (b) parameters for combining the first video frame data and the second video frame data into first combined video frame data, which does not include a blanking interval, using a predetermined first combining method for every video frame; and

(3) a second 3D detailed timing information table showing a relation between (a) the video format information identifiers of the three-dimensional video data and (b) parameters for combining the first video frame data and the second video frame data into second combined video frame data, which includes the blanking interval, using a predetermined second combining method for every video frame,

wherein the second controller transmits a device information message including data representing whether or not the source device supports an HDMI pass-through mode specified in WirelessHD to the sink device,

wherein, upon transmitting the video data to the sink device, (a) when the type of the video data is the two-dimensional video data, the second controller selects the 2D detailed timing information table, (b) when the type of the video data is the three-dimensional video data and the sink device does not support the HDMI pass-through mode, the second controller selects the first 3D detailed timing information table, and (c) when the type of the video data is the three-dimensional video data and the sink device supports the HDMI pass-through mode, the second controller selects the second 3D detailed timing information table, and

wherein the second controller refers to a selected detailed timing information table based on the video format information identifier of the video data so as to decide parameters for generating one of the two-dimensional video frame data, the first combined video frame data and the second combined video frame data based on the video data, generates one of the two-dimensional video frame data, the first combined video frame data and the second combined video frame data based on the video data using decided parameters, and transmits a generated combined data to the sink device.

31. A wireless communication system for wirelessly transmitting video data from a source device to a sink device,

wherein the sink device comprises a first controller for transmitting a video information message to the source device, the video information message including video format information identifiers for identifying video formats supported by the sink device, which are selected from among a plurality of video format information identifiers for identifying video formats each including a resolution of the video data and a type of the video data, and a three-dimensional transmission method for three-dimensional video data when the type of the video data is the three-dimensional video data including first and second video frame data,

wherein the source device comprises a second controller for receiving the video information message from the sink device, and

wherein the second controller selects one video format information identifier of the video format information identifiers included in a received video format message, generates video data having a video format corresponding to a selected video format information identifier, and transmits a generated video data to the sink device.

32. A method of transmitting video data for a wireless communication system for wirelessly transmitting the video data from a source device to a sink device, including steps of:

at the sink device, transmitting a video information message to the source device, the video information message including video format information identifiers for identifying video formats supported by the sink device, which are selected from among a plurality of video format information identifiers for identifying video formats each including a resolution of the video data and a type of the video data, and a three-dimensional transmission method for three-dimensional video data when the type of the video data is the three-dimensional video data including first and second video frame data, and

at the source device, receiving the video information message including the video format information identifiers from the sink device, selecting one video format information identifier of the video format information identifiers included in a received video format message, generating video data having a video format corresponding to a selected video format information identifier, and transmitting a generated video data to the sink device.