DVD recording
First Claim
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1. An apparatus comprising:
- a multiplexer to store multiplexed audio data and video data in a memory device; and
a data scrambler to read the multiplexed data from the memory device, scramble the multiplexed data to generate scrambled data, the scrambled data having a bit sequence that is different from the multiplexed data, in which the multiplexer and the data scrambler access the memory device using a common memory controller.
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Abstract
A DVD recorder including a multiplexer that stores multiplexed audio data and video data in a memory device, and a data scrambler that reads the multiplexed data from the memory device and scrambles the multiplexed data to generate scrambled data, in which the scrambled data has a bit sequence that is different from the multiplexed data. The data scrambler stores the scrambled data in the memory device. The multiplexer and the data scrambler access the memory device using a common memory controller.
23 Citations
45 Claims
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1. An apparatus comprising:
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a multiplexer to store multiplexed audio data and video data in a memory device; and
a data scrambler to read the multiplexed data from the memory device, scramble the multiplexed data to generate scrambled data, the scrambled data having a bit sequence that is different from the multiplexed data, in which the multiplexer and the data scrambler access the memory device using a common memory controller. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 25, 26)
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18. A digital versatile disc (DVD) recorder comprising:
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an audio/video encoder to encode audio data according to an audio compression standard and encode video data according to an MPEG standard to generate encoded audio data and encoded video data, multiplex the encoded audio data and encoded video data to generate multiplexed data, and save the multiplexed data to a memory device;
a DVD encoder to read the multiplexed data from the memory device, scramble the multiplexed data to generate scrambled data, generate error detection code to allow detection of an error in the scrambled data, and save the scrambled data and the error detection code to the memory device, the DVD encoder to also read the scrambled data and the error detection code from the memory device, generate error correction code based on the scrambled data and the error detection code, and save the error correction code, the error detection code, and the scrambled data in the memory device, in which the audio/video encoder and the DVD encoder access the memory device using a common memory controller. - View Dependent Claims (19, 20, 21)
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22. An apparatus comprising:
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a memory having a first region and a second region;
a multiplexer to store multiplexed audio data and video data in the first region of the memory; and
an encoder to read the multiplexed data from the first region of the memory, to process the multiplexed data to generate code that includes error correction information and having a format that is compatible with a recording standard for recording the code to an optical storage medium, the encoder storing the code in the second region of the memory, the encoder reading the multiplexed data from the first region and storing the code in the second region of the memory without using an integrated drive electronics (IDE) interface. - View Dependent Claims (23, 24)
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27. An apparatus comprising:
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first data processing means for storing multiplexed audio data and video data in a memory device; and
second data processing means for reading the multiplexed data from the memory device, scrambling the multiplexed data to generate scrambled data, and storing the scrambled data in the memory device, in which the first and second data processing means access the memory device using a common memory controller. - View Dependent Claims (28, 29, 30, 31)
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32. A method comprising:
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storing multiplexed audio data and video data in a memory device;
scrambling the multiplexed data to generate scrambled data, the scrambled data having a bit sequence that is different from the multiplexed data; and
storing the scrambled data in the memory device, in which storing the multiplexed data to the memory and storing the scrambled data to the memory are performed using a common memory controller. - View Dependent Claims (33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45)
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Specification