Audio synchronization pulse for multi-camera capture systems
View Patent ↗A multi-camera capture system includes an audio synchronization marker to provide synchronization marks with the video streams captured by the multi-camera capture system. In one embodiment of the present invention, the audio synchronization marker generate a plurality of substantially similar synchronizing audio signals. Each camera of the multi-camera capture system records a synchronizing audio signal with the video stream captured by the camera. The synchronizing audio signals contain synchronization marks which are used to synchronize the video streams of the cameras.
1. A multi-camera capture system comprising:
an audio synchronization marker;
a first camera coupled to the audio synchronization marker;
a second camera coupled to the audio synchronization marker;
wherein the audio synchronization marker is configured to provide a first synchronizing audio signal to the first camera and a second synchronizing audio signal to the second camera;
wherein the first synchronizing audio signal and the second synchronizing audio signal are periodic signals; and
wherein the first synchronizing audio signal comprises:
a plurality of first type synchronization marks; and
a plurality of second type synchronization marks.
2. The multi-camera capture system of claim 1 , wherein the first synchronizing audio signal and the second synchronizing audio signal are substantially similar.
3. The multi-camera capture system of claim 1 , wherein the first synchronizing audio signal comprises a first plurality of synchronization marks.
4. The multi-camera capture system of claim 1 , wherein the second synchronizing audio signal comprises a second plurality of synchronization marks and wherein each synchronization mark of the first plurality of synchronization marks corresponds to a synchronization mark from the second plurality of synchronization marks.
5. The multi-camera capture system of claim 1 , wherein the first synchronizing audio signal further comprises a plurality of third type synchronization marks.
6. The multi-camera capture system of claim 5 , wherein
a first type synchronization mark includes a single pulse;
a second type synchronization mark includes of a first pulse and a second pulse;
a third type synchronization mark includes of a first pulse, a second pulse, and a third pulse.
7. The multi-camera capture system of claim 6 , wherein each period of the first synchronizing audio signal includes a first type synchronization mark, a second type synchronization mark, and a third type synchronization mark.
8. The multi-camera capture system of claim 1 , further comprising:
a mirror mounting bar;
a first mirror attached to the mirror mounting bar;
a second mirror attached to the mirror mounting bar; and
wherein, the first camera and the second camera are attached to the mirror mounting bar.
9. The multi-camera capture system of claim 8 , wherein the first mirror and the second mirror are faces of a pyramidal shape.
10. The multi-camera capture system of claim 1 , wherein the first camera and the second camera face outward from a common point.
11. The multi-camera capture system of claim 10 further comprising a third camera facing outward from the common point.
12. The multi-camera capture system of claim 1 , wherein the audio synchronization marker further comprises:
a plurality of audio connectors; and
a programmable logic device coupled to the plurality of audio connectors.
13. The multi-camera capture system of claim 12 , further comprising a first plurality of resistors, wherein each resistor of the first plurality of resistors is coupled between the programmable logic device and an audio connector.
14. The multi-camera capture system of claim 13 , further comprising a second plurality of resistors, wherein each resistor of the second plurality of resistors is coupled between an audio connector and ground.
15. The multi-camera capture system of claim 12 , further comprising:
a voltage regulator coupled to the programmable logic device;
a switch coupled to the voltage regulator; and
a battery coupled to the switch.
16. The multi-camera capture system of claim 15 , further comprising an oscillator coupled to the programmable logic device.
17. The multi-camera capture system of claim 12 , wherein the programmable logic device is a microcontroller.
18. A multi-camera capture system comprising:
an audio synchronization marker;
a first camera coupled to the audio synchronization marker;
a second camera coupled to the audio synchronization marker;
wherein the audio synchronization marker is configured to provide a first synchronizing audio signal to the first camera and a second synchronizing audio signal to the second camera;
wherein the first synchronizing audio signal comprises a first plurality of discernable synchronization marks; and
wherein the first synchronizing audio signal comprises:
a plurality of first type synchronization marks; and
a plurality of second type synchronization marks.
19. The multi-camera capture system of claim 18 , wherein the first synchronizing audio signal and the second synchronizing audio signal are substantially similar.
20. The multi-camera capture system of claim 18 , wherein the second synchronizing audio signal comprises a second plurality of discernable synchronization marks and wherein each synchronization mark of the first plurality of synchronization marks corresponds to a synchronization mark from the second plurality of synchronization marks.
21. The multi-camera capture system of claim 18 , wherein the first synchronizing audio signal further comprises a plurality of third type synchronization marks.
22. A multi-camera capture system comprising:
an audio synchronization marker;
a first camera coupled to the audio synchronization marker;
a second camera coupled to the audio synchronization marker;
wherein the audio synchronization marker is configured to provide a first synchronizing audio signal to the first camera and a second synchronizing audio signal to the second camera;
wherein the first synchronizing audio signal comprises a first plurality of synchronization marks formed by one or more pulses; and
wherein the first synchronizing audio signal comprises:
a plurality of first type synchronization marks; and
a plurality of second type synchronization marks.
23. The multi-camera capture system of claim 22 , wherein the first synchronizing audio signal and the second synchronizing audio signal are substantially similar.
24. The multi-camera capture system of claim 22 , wherein the second synchronizing audio signal comprises a second plurality of synchronization marks and wherein each synchronization mark of the first plurality of synchronization marks corresponds to a synchronization mark from the second plurality of synchronization marks.
25. The multi-camera capture system of claim 22 , wherein the first synchronizing audio signal further comprises a plurality of third type synchronization marks.
26. The multi-camera capture system of claim 25 , wherein
a first type synchronization mark includes a single pulse;
a second type synchronization mark includes of a first pulse and a second pulse;
a third type synchronization mark includes of a first pulse, a second pulse, and a third pulse.
27. A method of synchronizing a plurality first video stream with a second video stream, the method comprising:
generating a first synchronizing audio signal, wherein the first synchronizing audio signal is a periodic signal;
generating a second synchronizing audio signal;
recording the first synchronizing audio signal with the first video stream;
recording the second synchronizing audio signal with the second video stream; and
wherein the first synchronizing audio signal comprises:
a plurality of first type synchronization marks; and
a plurality of second type synchronization marks.
28. The method of claim 27 , wherein the first synchronizing audio signal and the second synchronizing audio signal are substantially similar.
29. The method of claim 27 , wherein the first synchronizing audio signal comprises a first plurality of synchronization marks.
30. The method of claim 27 , wherein the second synchronizing audio signal comprises a second plurality of synchronization marks and wherein each synchronization mark of the first plurality of synchronization marks corresponds to a synchronization mark from the second plurality of synchronization marks.
31. The method of claim 27 , wherein each synchronization mark is a pulse.
32. The method of claim 27 , wherein the first synchronizing audio signal further comprises a plurality of third type synchronization marks.
33. The method of claim 32 , wherein
a first type synchronization mark includes a single pulse;
a second type synchronization mark includes of a first pulse and a second pulse;
a third type synchronization mark includes of a first pulse, a second pulse, and a third pulse.
34. The method of claim 33 , wherein each period of the first synchronizing audio signal includes a first type synchronization mark, a second type synchronization mark, and a third type synchronization mark.
35. A method of synchronizing a plurality first video stream with a second video stream, the method comprising:
generating a first synchronizing audio signal, wherein the first synchronizing audio signal comprises a plurality of discernable synchronization marks;
generating a second synchronizing audio signal;
recording the first synchronizing audio signal with the first video stream;
recording the second synchronizing audio signal with the second video stream; and
wherein the first synchronizing audio signal comprises:
a plurality of first type synchronization marks; and
a plurality of second type synchronization marks.
36. The method of claim 35 , wherein the first synchronizing audio signal and the second synchronizing audio signal are substantially similar.
37. The method of claim 35 , wherein the second synchronizing audio signal comprises a second plurality of discernable synchronization marks and wherein each synchronization mark of the first plurality of synchronization marks corresponds to a synchronization mark from the second plurality of synchronization marks.
38. The method of claim 35 , wherein each synchronization mark is a pulse.
39. The method of claim 35 , wherein the first synchronizing audio signal further comprises a plurality of third type synchronization marks.
40. The method of claim 39 , wherein
a first type synchronization mark includes a single pulse;
a second type synchronization mark includes of a first pulse and a second pulse;
a third type synchronization mark includes of a first pulse, a second pulse, and a third pulse.
41. A method of synchronizing a plurality first video stream with a second video stream, the method comprising:
generating a first synchronizing audio signal, wherein the first synchronizing audio signal comprises a plurality of synchronization marks each including one or more pulses;
generating a second synchronizing audio signal;
recording the first synchronizing audio signal with the first video stream;
recording the second synchronizing audio signal with the second video stream; and
wherein the first synchronizing audio signal comprises:
a plurality of first type synchronization marks; and
a plurality of second type synchronization marks.
42. The method of claim 41 , wherein the first synchronizing audio signal and the second synchronizing audio signal are substantially similar.
43. The method of claim 41 , wherein the second synchronizing audio signal comprises a second plurality of synchronization marks and wherein each synchronization mark of the first plurality of synchronization marks corresponds to a synchronization mark from the second plurality of synchronization marks.
44. The method of claim 41 , wherein the first synchronizing audio signal further comprises a plurality of third type synchronization marks.
45. The method of claim 44 , wherein
a first type synchronization mark includes a single pulse;
a second type synchronization mark includes of a first pulse and a second pulse;
a third type synchronization mark includes of a first pulse, a second pulse, and a third pulse.