Method and apparatus for wireless clock regeneration
Methods and systems for operating a wireless clock system for multimedia datastream transmission and display. Source clock frames are compared with a reference clock frames and the clock difference are transmitted to a wireless clock receiver which also receives the same reference clock frames. Source clock frames are re-constructed using the reference clock frames, clock difference information and the receiver's local clock system.
1. A method for synchronizing wireless data, comprising actions of:
receiving first source clock frames of a datastream and receiving and deriving local Global Positioning System (GPS) clock frames by a transmitter;
calculating the clock difference between said GPS clock frames and said first source clock frames;
transmitting said clock difference wirelessly;
receiving and deriving said GPS clock frame information by a receiver;
receiving said clock difference by the receiver; and
constructing second source clock frames using said received clock difference and said GPS clock frames.
2. The method of claim 1 , further comprising actions of:
calculating an Initial Phase Difference between the local clock frames of the receiver and said second source clock frame;
constructing third source clock frames using said Initial Phase Difference and said second source clock frames; and
sending said third source clock frames to a destination player.
3. The method of claim 2 , further comprising actions of:
synchronizing said third source clock frames with said first source clock frames periodically.
4. The method of claim 2 , further comprising actions of:
synchronizing said third source clock frames with said first source clock frames at request.
5. The method of claim 2 , further comprising actions of:
synchronizing said third source clock frames with said first source clock frames automatically when a pre-set jitter threshold is reached.
6. The method of claim 2 , further comprising actions of:
making said datastream ready for output when said third source clock occurs; and
sending said datastream to said destination player simultaneously when said third source clock frames are sent to said player.
7. The method of claim 2 , wherein said datasteam is one of or the combination of high definition video stream, high definition audio stream, digital gaming datastream, internet content, IPTV signals, digital satellite signals, and 2G/3G digital cellular signals.
8. A method for synchronizing wireless HDMI datastream, comprising:
receiving first source clock frames of an HDMI datastream and receiving and deriving local GPS clock frames by a wireless transmitter;
calculating the clock difference between said GPS clock frames and said first source clock frames;
transmitting said clock difference wirelessly;
receiving and deriving said GPS clock frames by a receiver;
receiving said clock difference by the receiver; and
constructing second source clock frames using said clock difference and said GPS clock frames.
9. The method of claim 8 , further comprising:
calculating an Initial Phase Difference between the local clock frames of the receiver and said second source clock frames;
constructing third source clock frames using said second source clock frames and said Initial Phase Difference; and
sending said third source clock frames to a display.
10. The method of claim 9 , further comprising actions of:
synchronizing said third source clock frames with said source clock frames periodically.
11. The method of claim 9 , further comprising actions of:
synchronizing said third source clock frames with said source clock frames at request.
12. The method of claim 9 , further comprising actions of:
synchronizing said third source clock frames with said source clock frames automatically as a pre-set jitter threshold is reached.
13. The method of claim 9 , further comprising actions of:
making said HDMI datastream ready for output when said third source clock occurs; and
sending said HDMI datastream to said display simultaneously as said third source clock frames are sent to said display.
14. A method for wirelessly transmitting HDMI datastream, comprising actions of:
multiplexing a HDMI datastream into plurality of channels of data substreams;
obtaining first source clock frames of said HDMI datastream;
calculating the clock difference between said source clock frames and local GPS clock frames received and derived by a transmitter;
transmitting wirelessly said data substreams and said clock difference to a receiver;
receiving said plurality of channels of data substreams by said receiver;
processing said data substreams to make them ready for output;
receiving said clock difference by said receiver;
receiving said GPS clock frames by said receiver;
constructing second source clock frames using said GPS clock frames and said clock difference.
15. The method of claim 14 , further comprising:
calculating the Initial Phase Difference between the local clock frames of the receiver and said second source clock frames;
constructing third source clock frames using said Initial Phase Difference and said second source clock frames and ;
making said datastream ready for output before said third source clock frames start; and
outputting said datastream and said third source clock frames simultaneously.