Method and apparatus for replacement of audio data in a recorded audio/video stream

A method for replacing audio data within a contiguous block of audio/video data, comprising:

• transmitting a contiguous block of audio/video data over a communication network to a receiving device, wherein the contiguous block comprises audio data, video data, and closed captioning text data associated with the audio data;
• storing the contiguous block at the receiving device;
• transmitting an audio data segment over the communication network to the receiving device;
• transmitting multiple sets of location information over the communication network to the receiving device separately from the contiguous block, wherein each set of location information includes a respective text string associated with the closed captioning text data for one or more video data frames of the contiguous block and also includes a corresponding offset value relative to a beginning location of the respective text string, and wherein the respective text string is used to indicate a unique location within the contiguous block, and wherein the unique location is offset by the corresponding offset value to indicate an identified location within the contiguous block, such that each text string and its accompanying offset value redundantly indicates the same identified location;
• replacing at least a portion of the audio data of the contiguous block at the identified location with the audio data segment to yield a second contiguous block;
• and
• transferring at least a portion of the second contiguous block from the receiving device to a display device.

A receiving device for replacing audio data within a recorded audio/video stream, the receiving device comprising:

• a communication interface configured to receive a first audio/video stream, an audio data segment, and multiple sets of location information, wherein:
• the first audio/video stream comprises audio data, video data, and closed captioning text data;
• each set of the location information is received in a different data file and separate from the first audio/video stream;
• each set of location information includes a different unique text string associated with the closed captioning text data for one or more video frames of the first audio/video stream, and includes an offset value that accompanies the respective unique text string and that defines an offset relative to a beginning location of the respective unique text string;
• each unique text string is used to identify a different location within the first audio/video stream, the different location being offset by the offset value to indicate an identified location in the first audio/video stream such that each unique text string and its accompanying offset value redundantly indicates the same identified location;
• a storage unit configured to store the first audio/video stream and the audio data segment;
• an audio/video interface configured to transmit audio/video streams to a display device;
• and
• control logic configured to replace at least a portion of the audio data of the first audio/video stream at the identified location with the audio data segment to produce a second audio/video stream, and transfer at least a portion of the second audio/video stream to the audio/video interface.