Wireless HD AV packet format
View Patent ↗An audio/video (AV) processor is coupled to a media access controller (MAC) to generate a composite packet having an optimized format for carrying audio, video, and data traffic with fields in a header of the composite packet specifying video-specific information. A physical device interface (PHY) is coupled to the MAC. The PHY encodes and decodes between a digital signal and a modulated analog signal. The PHY comprises a high rate physical layer circuit (HRP) and a low rate physical layer circuit (LRP). A radio frequency (RF) transmitter is coupled to the PHY to transmit data.
1. An apparatus comprising:
an audio/video (AV) processor;
a media access controller (MAC) coupled to the AV processor for generating a composite packet having a format configured to carry audio, video, and data traffic with fields in a header of the composite packet specifying video-specific information, wherein the MAC reorders a color element associated with pixel data in a partition;
a physical device interface (PHY) coupled to the MAC, the PHY to encode and decode between a digital signal and a modulated analog signal, the PHY comprising a high rate physical layer circuit (HRP) and a low rate physical layer circuit (LRP); and
a radio frequency (RF) transmitter coupled to the PHY to transmit data.
2. The apparatus of claim 1 wherein the composite packet comprises sub-packets sharing a common MAC and PHY header.
3. The apparatus of claim 1 wherein a msb and lsb data portion of the composite packet is transmitted using different Modulation Coding Scheme (MSC).
4. The apparatus of claim 1 wherein a msb and Isb data portion of the composite packet is protected using an msb and lsb CRC.
5. The apparatus of claim 1 wherein the composite packet comprises horizontal and vertical coordinates in a video sub-packet header of the composite packet to uniquely identify any location in a particular video frame.
6. The apparatus of claim 1 wherein a size of the video sub-packets of the composite packet is scaled with different PHY coding rates.
7. The apparatus of claim 1 wherein a size of the video sub-packets of the composite packet are determined when for the duration of the video stream.
8. The apparatus of claim 1 wherein the video sub-packets of the composite packet include clean pixel boundaries.
9. The apparatus of claim 1 wherein the deep color video sub-packets of the composite packet support UEP.
10. The apparatus of claim 1 wherein the MAC reorders a color element for each pixel data in multiple partitions for improved reconstruction.
11. The apparatus of claim 1 wherein at least one video playback time is included in the video header portion.
12. An apparatus comprising:
an audio/video (AV) processor;
a media access controller (MAC) coupled to the AV processor for generating a composite packet having a format configured to carry audio, video, and data traffic with fields in a header of the composite packet specifying video-specific information, wherein only one playback time field is included for a plurality of video sub-packets and a playback select is specified to indicate which of the video sub-packets the playback time describes;
a physical device interface (PHY) coupled to the MAC, the PHY to encode and decode between a digital signal and a modulated analog signal, the PHY comprising a high rate physical layer circuit (HRP) and a low rate physical layer circuit (LRP); and
a radio frequency (RF) transmitter coupled to the PHY to transmit data.
13. A method comprising:
generating a composite packet with a wireless HD AV format configured to carry audio, video, and data traffic, with fields in a header of the composite packet specifying video-specific information,
wherein a msb and lsb video portion of the composite packet transmitted is protected by an msb and lsb CRC; and
reordering a color element associated with pixel data in a partition.
14. The method of claim 13 wherein the composite packet comprises sub-packets sharing a common MAC and PHY header.
15. The method of claim 13 wherein the composite packet comprises horizontal and vertical coordinates in a video sub-packet header of the composite packet to uniquely identify any location in a particular video frame.
16. The method of claim 13 wherein a size of the video sub-packets of the composite packet is scaled with different PHY coding rate.
17. The method of claim 13 wherein the video sub-packets of the composite packet include clean pixel boundaries.
18. The method of claim 13 wherein the deep color video sub-packets of the composite packet support UEP.
19. The method of claim 13 further comprising:
reordering a color element for each pixel data in multiple partitions for improved reconstruction.
20. The method of claim 13 wherein at least one video playback time is included in the video header portion.