Patent ID: 7764927
Filing Date: 2010-07-27
Classification: H04L,H04N

Abstract:
1. A method for providing feedback to control source encoding of a digital video signal, the method comprising: monitoring a radio frequency communication signal at a receiving end of an air interface, to monitor at least one parameter indicative of a property of the radio frequency communication signal itself, as received at the receiving end of the air interface, to obtain an indication of a channel condition of the air interface, the radio frequency communication signal carrying an encoded video signal formed by a video encoder at a transmitting end of the air interface; responsive to said at least one monitored parameter indicative of a property of the radio frequency communication signal itself, generating a feedback signal at the receiving end of the air interface for controlling at least one source encoding parameter of the video encoder at the transmitting end of the air interface, the feedback signal configured to command an increase in error robustness of the source encoding in comparatively worse channel conditions and correspondingly a reduction in overhead in the source encoding in comparatively better channel conditions; and transmitting said feedback signal over the air interface to affect control of said at least one source encoding parameter at the video encoder.