Host processing device using external storage medium
First Claim
1. A host processing device for reproducing compressed audio data, comprising:
- a body;
a memory slot formed in a side of an upper end of the body to accommodate a specific external storage medium;
command input means for instructing the host processing device to execute a specific operation; and
a system control module for controlling an operation of the host processing device, the system control module comprising;
a digital interface unit adapted to communicate with the external storage medium through a port formed on an inside end of the memory slot and interface the audio data according to a certain digital interface communication standard, a processing module for processing a command signal applied from the command input means and controlling the host processing device to perform an operation corresponding to the command signal, and requesting the audio data from the external storage medium, receiving the audio data and applying the received audio data to a certain path, a memory unit for storing a program for performing a system operation of the host processing system, and a decoder unit equipped therein with a buffer to delay a transmission rate and adapted to decode the audio data under the control of the processing module.
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Abstract
Disclosed herein is a host processing device that has a space for accommodating an external storage medium. The host processing device can be provided with and reproduce media data files from the external storage media connected thereto. The host processing device accesses an external storage medium to read and reproduce media files stored in the external storage medium, and stores, in a certain digital format, media files that are generated by encoding analog signals provided from a tuner module or microphone module in the external storage medium. The host processing device can handle a certain secure measure for protecting copyright for the media files. According to the host processing device, without a large capacity non-volatile storage medium therein, the media files can be reproduced and recorded, and the demand of the copyright protection for the media files can be fulfilled.
62 Citations
19 Claims
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1. A host processing device for reproducing compressed audio data, comprising:
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a body;
a memory slot formed in a side of an upper end of the body to accommodate a specific external storage medium;
command input means for instructing the host processing device to execute a specific operation; and
a system control module for controlling an operation of the host processing device, the system control module comprising;
a digital interface unit adapted to communicate with the external storage medium through a port formed on an inside end of the memory slot and interface the audio data according to a certain digital interface communication standard, a processing module for processing a command signal applied from the command input means and controlling the host processing device to perform an operation corresponding to the command signal, and requesting the audio data from the external storage medium, receiving the audio data and applying the received audio data to a certain path, a memory unit for storing a program for performing a system operation of the host processing system, and a decoder unit equipped therein with a buffer to delay a transmission rate and adapted to decode the audio data under the control of the processing module. - View Dependent Claims (2)
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3. A host processing device using an external storage medium, comprising:
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a medium access module for accessing the external storage medium through a certain digital transmission medium and providing an access to the external storage medium;
a signal processing module for decoding media data according to a certain first signal processing method;
a processing module for controlling an operation of the host processing device; and
a system memory module for providing a memory space for the operation of the host processing device controlled by the processing module;
wherein, when the processing module connects with the external storage medium, the processing module accesses the external storage medium, reads first file information of one or more media files stored in the external storage medium, and positions the first file information in the system memory module;
wherein, when the processing module receives a command to select a specific one of the media files, the processing module searches for and reads data of the selected media file on the external storage medium through the medium access module based upon the first file information positioned on the system memory module, and provides the read media data to the signal processing module to be decoded according to the first signal processing method. - View Dependent Claims (4, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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5. A host processing device using an external storage medium, comprising:
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a medium access module for accessing the external storage medium through a certain digital transmission medium and providing an access to the external storage medium;
a signal processing module for decoding media data according to a certain first signal processing method;
a user interface module for providing an interface to a user of the host processing device;
a processing module for controlling an operation of the host processing device; and
a system memory module for providing a memory space for the operation of the host processing device controlled by the processing module;
wherein, when the processing module connects with the external storage medium, the processing module accesses the external storage medium through the medium access module, reads first file information of one or more media files stored in the external storage medium, and displays the media files on the user interface module stored in the external storage medium based upon the read first file information;
wherein, when the processing module receives a command to select a specific one of the media files, the processing module accesses the external storage medium through the medium access module, searches for the selected media file, loads data of the searched file data onto the system memory module, and provides the file data loaded onto the system memory module to the signal processing module to be decoded according to the first signal processing method.
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Specification