摘要:
A command generator having a single-input multi-out converter is provided. The command generator in a memory device comprises a converter for receiving first and second control signals from external circuit and an input signal having a plurality of pulses to generate binary data denoting a command. The converter comprises an input buffer, in response to the first and the second control signals, for receiving the input signal having a plurality of pulses and outputting an output signal having a number of pulses within a predetermined period; and a pulse counter for counting the number of pulses in the output signal to generate binary data representing the counted number. The command generator counts the number of pulses of a input signal through a pad, that is, performs built-in self-test of the product, thereby product cost can be considerably reduced because of reduction of test time.
摘要:
An analog-to-digital (A/D) conversion apparatus using a delta-sigma method performs a magnitude control operation and a filtering operation with respect to a differential signal in a conventional A/D conversion apparatus. The A/D conversion apparatus includes a multiplier for multiplying a differential signal output from a differential circuit, a filter for filtering the differential signal and outputting a filtered data signal, and an adder for adding the signals output from the multiplier and the filter and supplying the added result to a quantizer. The factor used in the multiplier is selected so that the quantization noise generated is smaller than the quantization noise generated in the conventional A/D conversion apparatus. Thus, the A/D conversion apparatus provides a wider bandwidth than the conventional A/D conversion apparatus, since it generates relatively smaller quantization noise with respect to the entire passband. As a result, the A/D conversion apparatus provides good performance appropriate for next-generation audio equipment requiring a higher signal-to-noise ratio. Also, since the A/D conversion apparatus can be realized by modifying the conventional A/D conversion apparatus hardware only slightly, an A/D conversion apparatus having much better performance can be manufactured using substantially the same production process and cost.
摘要:
A recording medium and a recording apparatus store manufacturer information to support specific functions for each manufacturer and a method therefore. A reproducing apparatus reproduces the manufacturer information to support specific functions. When the recording apparatus modifies the contents of the recording medium, the manufacturer's identification code is recorded. The recording apparatus and the reproducing apparatus checks the identification code on the recording medium before using its own manufacture information item for some specific function. Also, a time required to determine whether the manufacturer information items are effective is reduced.
摘要:
A recordable and/or rewriteable recording medium for storing still picture data, and recording and/or reproducing method and apparatus therefor. The recording medium stores still picture group information for grouping a plurality of still pictures in order to manage the still picture at a group level, and stores audio group information for grouping additional audio data added to the still picture data after the still picture data are recorded. Therefore, large-capacity still picture data and additional audio data added thereto can be recorded using a minimum amount of management information. Further, during reproduction, data can be displayed and edited in units of the respective still pictures. Also, it is possible to cope with after-recording of the audio data.
摘要:
A recording medium and a recording apparatus for storing manufacturer information for supporting specific functions for each manufacturer and a method therefor. A reproducing apparatus for reproducing manufacturer information for supporting specific functions and a method therefor is also provided. If a recording apparatus modifies the contents of the recording medium, then it should record its manufacturer's identification code. A recording apparatus/reproducing apparatus should check the identification code on the recording medium before using its own manufacture information item for some specific function. Also, it is possible to reduce the time required to determine whether the manufacturer information items are effective.
摘要:
A recording medium and a recording apparatus for storing manufacturer information for supporting specific functions for each manufacturer and a method therefor. A reproducing apparatus for reproducing manufacturer information for supporting specific functions and a method therefor is also provided. If a recording apparatus modifies the contents of the recording medium, then it should record its manufacturer's identification code. A recording apparatus/reproducing apparatus should check the identification code on the recording medium before using its own manufacture information item for some specific function. Also, it is possible to reduce the time required to determine whether the manufacturer information items are effective.
摘要:
A recordable and/or rewriteable recording medium for storing still picture data, and recording and/or reproducing method and apparatus therefor. The recording medium stores still picture group information for grouping a plurality of still pictures in order to manage the still picture at a group level, and stores audio group information for grouping additional audio data added to the still picture data after the still picture data are recorded. Therefore, large-capacity still picture data and additional audio data added thereto can be recorded using a minimum amount of management information. Further, during reproduction, data can be displayed and edited in units of the respective still pictures. Also, it is possible to cope with after-recording of the audio data.
摘要:
A recording medium for storing virtual deletion information, and recording and/or reproducing method and apparatus therefor are provided. The recording medium includes a first region having a plurality of still pictures, and a second region having first virtual deletion information for the still pictures, and still picture group information for separating the still pictures in the first region into a predetermined maximum number of groups in order to manage the still pictures at a group level, wherein the first virtual deletion information is within the still picture group information, and if the first virtual deletion information is set to a virtual delete state, the corresponding still picture is not to be reproduced. Accordingly, file extent information can be prevented from excessively increasing by maximally preventing a recording area from being scattered, when some of a data file are deleted by a user's request.
摘要:
Methods of temporary erase, search, restoration and permanent erase of a stream object and a recording medium for storing additional information for restoration of divided stream objects. To solve the problem that full restoration cannot be guaranteed in managing and editing (temporary deleting) a content which includes a film, music, or other data, when a plurality of units are used, search information in dividing a stream object by temporary deletion is generated. Using the information structure and restoration method, stream objects divided by temporary deletion can be fully restored to their original state, and the temporarily-deleted part can be permanently deleted.
摘要:
A recording medium for storing virtual deletion information, and recording and/or reproducing method and apparatus therefor are provided. The recording medium includes a first region having a plurality of still pictures, and a second region having first virtual deletion information for the still pictures, and still picture group information for separating the still pictures in the first region into a predetermined maximum number of groups in order to manage the still pictures at a group level, wherein the first virtual deletion information is within the still picture group information, and if the first virtual deletion information is set to a virtual delete state, the corresponding still picture is not to be reproduced. Accordingly, file extent information can be prevented from excessively increasing by maximally preventing a recording area from being scattered, when some of a data file are deleted by a user's request.