Memory card with function of video/audio data processing
AssigneeSiliconmotion Inc.
InventorsWallace Kou, Yu-Wei Chyan
Life of this patent
Estimating the term…
Abstract
A memory card with the function of video or audio data processing includes a card controller and a memory for storing encoded video/audio data. The card controller includes a card microprocessor, a buffer and a video/audio data processor. The card microprocessor controls internal and external data access. The buffer is for temporarily storing data during data processing. The video/audio data processor is adapted for coding raw data from an external host system or decoding coded data stored in the memory.
Claims6
A memory card with the function of video/audio data processing, comprising:
- a memory for storing a video/audio file;
- and
- a memory card controller for accessing internal data in the memory via an internal memory interface and external data in a host system via a memory card external interface, the memory card controller including:
- a buffer for temporarily storing the video/audio file;
- a memory card microprocessor for controlling the data access;
- and
- a video/audio decoder for decoding the video/audio file;
- wherein when the video/audio file is temporarily stored in the buffer, the video/audio decoder decodes the video/audio file in the buffer into decoded data;
- the decoded data are temporarily stored in the buffer;
- and the memory card controller sends out the decoded data to the host system.
A memory card with the function of video/audio data processing, comprising:
- a memory;
- and
- a memory card controller for accessing internal data in the memory via an internal memory interface and external data in a host system via a memory card external interface, the memory card controller including:
- a buffer for temporarily storing a set of original digital data;
- a memory card microprocessor for controlling the data access;
- and
- a video/audio coder for coding the original digital data;
- wherein when the buffer temporarily stores the original digital data from the host system;
- the video/audio coder codes the original digital data in the buffer to form a coded file to be stored in the memory.
A memory card with the function of video/audio data processing, comprising:
- a memory for storing a video/audio file;
- and
- a memory card controller for accessing internal data in the memory via an internal memory interface and external data in a host system via a memory card external interface, the memory card controller including:
- a buffer for temporarily storing the video/audio file or a set of original digital data;
- a memory card microprocessor for controlling the data access;
- and
- a video/audio coder/decoder (CODEC) for coding the original digital data or decoding the video/audio file;
- wherein when video/audio file is temporarily stored in the buffer, the video/audio decoder decodes the video/audio file in the buffer to form decoded data to be stored in the buffer, and the memory card controller sends the coded data to the host system;
- when the buffer temporarily stores the original digital data, the video/audio coder codes the original digital data in the buffer to form a coded file to be stored in the memory.
Dependencies are inferred from the claim text.