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US 7,599,958 B2Granted
Data storing and searching method of a portable player
AssigneeLG Electronics Inc.
InventorsHyun Bae Shin, Kang Won Jeoung
Life of this patent
Estimating the term…
Abstract
The present invention relates to a digital audio layer and an audio content file management method of a digital audio player. This method writes address of an recording area containing descriptive information such as title of a song and a singer's name for each stored audio file in a file management information area for a corresponding audio file. Then, descriptive information can be directly searched and displayed more quickly using the written address if an audio file is selected.
Claims42
A method for retrieving information located within an audio data file, comprising:
- detecting whether a prescribed marker is written at a first location in a reserved area of a management entry for the audio data file;
- and
- reading address information from a second location of the reserved area of the management entry when the prescribed marker is detected in the first location, the address information indicative of a location of descriptive information relating to the audio data file, wherein the management entry is provided separately on a storage medium from the audio data file,
- wherein the address information is indicative of a location of a predetermined one of a final plurality of data clusters in which the descriptive information is stored or which is adjacent to one or more final clusters in which the descriptive information is stored, and
- wherein the descriptive information at the location of the predetermined one of the final plurality of data clusters is read without reading intervening data clusters containing music of the audio data file, the descriptive information providing an indication of at least one of a title or an artist associated to a song stored in the MP3 digital audio file.
2 more elements
A method of retrieving information located within an audio data file, comprising:
- detecting whether a prescribed marker is written in a reserved area of a management entry for the audio data file;
- reading address information from the reserved area of the management entry that is indicative of a location of descriptive information relating to the audio data file, wherein the management entry is provided separately on a storage medium from the audio data file, and
- retrieving the descriptive information based on the read address information, wherein the address information is indicative of a location of a first predetermined one of a final plurality of data clusters corresponding to a first point of the audio data file,
- wherein if the descriptive information is not found at the first point, performing a search operation starting from a second predetermined one of the final plurality of data clusters of the audio data file until the descriptive information is located, and
- wherein the first predetermined one of the final data clusters is searched to locate the descriptive information without searching intervening data clusters containing music of the audio data file.
2 more elements
An apparatus to retrieve information located within an audio data file, comprising:
- a controller to detect whether a prescribed marker is written in a reserved area of a management entry for the audio data file and reading address information from the reserved area of the management entry that is indicative of a location of descriptive information relating to the audio data file,
- wherein the address information is indicative of a location of a predetermined one of a final plurality of data clusters in which the descriptive information is stored or which is adjacent to one or more final clusters in which the descriptive information is stored,
- wherein the descriptive information at the location of the predetermined one of the final plurality of data clusters is read without reading intervening data clusters containing music of the audio data file,
- wherein the management entry is provided separately on a storage medium from the audio data file, and
- wherein the information provides an indication of at least one of a title or an artist associated to a song stored in the audio data file.
2 more elements
A computer-readable medium to store an audio data file having information and to be read by a data reading device, the computer-readable medium comprising:
- a management information area to store a management entry for the audio data file, the management entry including a reserved area for storing a prescribed marker and address information that is indicative of a location of descriptive information relating to the audio data file, the management entry being provided separately on a storage medium from the audio data file,
- wherein the address information is indicative of a location of a predetermined one of a final plurality of data clusters in which the descriptive information is stored or which is adjacent to one or more final clusters in which the descriptive information is stored, and
- wherein the information in the audio data file provides an indication of at least one of a title or an artist associated to a song stored in the audio data file, wherein the computer-readable medium further comprises:
- a directory entry for the audio data file, the directory entry including a prescribed reserved area for storing a pre-specified marker and penultimate cluster address information corresponding to the descriptive information in the audio data file.
- wherein the address information is written in the reserved area of the directory entry in a prescribed relationship with the pre-specified marker.
2 more elements
Dependencies are inferred from the claim text.