Abstract:
An audio and video synchronization compensation method and apparatus for smoothly compensating audio and video synchronization in an audio and video system such as a DTV and a DVD player are provided. The apparatus includes a signal decoder unit which extracts time information for reproducing a video and/or audio signal and reference operation time information of a reproduction system from an input compressed stream; a signal synchronization control unit which determines the reproduction state of a signal by comparing reproduction time information of the stream with reference time information of the system, measures the difference between the reproduction time information and the reference time information in the determined signal reproduction state, and adjusts a transition speed used to approach from a signal reproduction interval to a signal synchronization interval according to a reproduction speed value of a pattern corresponding to the difference.
Abstract:
Provided are an audio processing apparatus and a method for providing audio thereof, and an audio receiver and a method of providing audio thereof. The audio processing apparatus includes: a location detecting unit which detects a location of an audio receiver; a sound adjusting unit which adjusts a sound of an audio signal according to the detected location; and an audio signal transmitting unit which transmits the audio signal with the adjusted sound to the audio receiver.
Abstract:
A security method and a security apparatus are disclosed which use a self-generated encryption key. The security method includes the steps of: generating an encryption key; decrypting pre-encrypted data using a pre-stored manufacturer key; and re-encrypting the decrypted data using the encryption key. The security method and apparatus minimize external leakage of data by self-generating the unique encryption key. Since the encryption keys are unique in each set, set binding is possible.
Abstract:
A security method and a security apparatus are disclosed which use a self-generated encryption key. The security method includes the steps of: generating an encryption key; decrypting pre-encrypted data using a pre-stored manufacturer key; and re-encrypting the decrypted data using the encryption key. The security method and apparatus minimize external leakage of data by self-generating the unique encryption key. Since the encryption keys are unique in each set, set binding is possible.
Abstract:
An audio and video synchronization compensation method and apparatus for smoothly compensating audio and video synchronization in an audio and video system such as a DTV and a DVD player are provided. The apparatus includes a signal decoder unit which extracts time information for reproducing a video and/or audio signal and reference operation time information of a reproduction system from an input compressed stream; a signal synchronization control unit which determines the reproduction state of a signal by comparing reproduction time information of the stream with reference time information of the system, measures the difference between the reproduction time information and the reference time information in the determined signal reproduction state, and adjusts a transition speed used to approach from a signal reproduction interval to a signal synchronization interval according to a reproduction speed value of a pattern corresponding to the difference.
Abstract:
An audio system apparatus and method for processing multi-channel audio data are provided. In the audio system, information indicating a correspondence relation between the channels of the multi-channel audio data and speakers installed in an arbitrary space is generated based on selection by a user, and according to the generated information, the channels of the multi-channel audio data are rearranged. By doing so, terminals of the output panel of the audio system and speakers can be connected arbitrarily according to convenience of a user and channels of multi-channel audio data can be set appropriately to the connection status.