USRE42297E1 - Apparatus and method for processing audio signals recorded on a medium - Google Patents

Apparatus and method for processing audio signals recorded on a medium Download PDF

Info

Publication number
USRE42297E1
USRE42297E1 US11058630 US5863005A USRE42297E US RE42297 E1 USRE42297 E1 US RE42297E1 US 11058630 US11058630 US 11058630 US 5863005 A US5863005 A US 5863005A US RE42297 E USRE42297 E US RE42297E
Authority
US
Grant status
Grant
Patent type
Prior art keywords
data
type
digital audio
digital
audio data
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US11058630
Inventor
Han Jung
Ki Won Kim
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LG Electronics Inc
Original Assignee
LG Electronics Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Grant date

Links

Images

Classifications

    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10HELECTROPHONIC MUSICAL INSTRUMENTS
    • G10H1/00Details of electrophonic musical instruments
    • G10H1/36Accompaniment arrangements
    • G10H1/361Recording/reproducing of accompaniment for use with an external source, e.g. karaoke systems
    • G10H1/363Recording/reproducing of accompaniment for use with an external source, e.g. karaoke systems using optical disks, e.g. CD, CD-ROM, to store accompaniment information in digital form
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10Digital recording or reproducing
    • G11B20/12Formatting, e.g. arrangement of data block or words on the record carriers
    • G11B20/1217Formatting, e.g. arrangement of data block or words on the record carriers on discs
    • G11B20/1251Formatting, e.g. arrangement of data block or words on the record carriers on discs for continuous data, e.g. digitised analog information signals, pulse code modulated [PCM] data
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/102Programmed access in sequence to addressed parts of tracks of operating record carriers
    • G11B27/105Programmed access in sequence to addressed parts of tracks of operating record carriers of operating discs
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/19Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
    • G11B27/28Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
    • G11B27/32Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on separate auxiliary tracks of the same or an auxiliary record carrier
    • G11B27/327Table of contents
    • G11B27/329Table of contents on a disc [VTOC]
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10HELECTROPHONIC MUSICAL INSTRUMENTS
    • G10H2240/00Data organisation or data communication aspects, specifically adapted for electrophonic musical tools or instruments
    • G10H2240/011Files or data streams containing coded musical information, e.g. for transmission
    • G10H2240/046File format, i.e. specific or non-standard musical file format used in or adapted for electrophonic musical instruments, e.g. in wavetables
    • G10H2240/066MPEG audio-visual compression file formats, e.g. MPEG-4 for coding of audio-visual objects
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00Record carriers by type
    • G11B2220/20Disc-shaped record carriers
    • G11B2220/25Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
    • G11B2220/2537Optical discs
    • G11B2220/2545CDs
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00Record carriers by type
    • G11B2220/20Disc-shaped record carriers
    • G11B2220/25Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
    • G11B2220/2537Optical discs
    • G11B2220/2545CDs
    • G11B2220/255CD-I, i.e. CD-interactive

Abstract

This invention relates to a karaoke CD format and a device for controlling audio signals utilizing the karaoke CD format which provides a user with selective reproduction of the voice of a player. The karaoke CD format includes a CD format divided into video sectors and audio sectors. The audio sectors are further divided into a part for recording accompaniment sound and playing sound at the same time and a part for recording accompaniment sound only. There is provided record coding information for distinguishing the parts.A device, method and recording medium for reproducing digital data, are discussed. According to an embodiment, the recording medium includes digital audio data recorded thereon, the digital audio data comprising data units corresponding to at least one of: a first type of digital audio data, and a second type of digital audio data which includes at least one content different from the first type of digital audio data. Each data unit includes supplementary information, which has: a) coding information indicating a coding mode of the digital audio data, b) identification information, different than the coding information, identifying the data unit as one of the first type of digital audio data or the second type of digital audio, and c) time information controlling a presentation timing of data units of the first or second type.

Description

CROSS-REFERENCES TO RELATED APPLICATIONS

This is a division of application Ser. No. 08/735,572, filed Oct. 23, 1996, now U.S. Pat. No. 6,535,467, which is a continuation of 08/307,288, filed Sep. 16, 1994, now abandoned.—all of which are incorporated herein by reference.

This application is a continuation of U.S. Reissue application Ser. No. 10/848,616 filed on May 19, 2004 (now abandoned), which is a reissue of U.S. Pat. No. 6,721,249 (application Ser. No. 09/209,280 filed Dec. 11, 1998), which is a divisional of U.S. application Ser. No. 08/735,572 filed Oct. 23, 1996 (U.S. Pat. No. 6,535,467), which is a continuation of U.S. application Ser. No. 08/307,288 filed Sep. 16, 1994 (now abandoned). The present application also claims foreign priority benefits of Korean Patent Application No. 93-18841 filed Sep. 17, 1993 in The Republic of Korea. The entirety of each of the above-identified documents is hereby incorporated by reference. Note: More than one reissue application has been filed for the reissue of U.S. Pat. No. 6,721,249. The reissue applications are application Ser. No. 10/848,616 (parent of the present application); Ser. No. 11/058,630 (the present application); Ser. No. 10/848,617 (now abandoned); Ser. Nos. 11/905,506; 12/142,642; 12/142,658; 12/142,663; 12/142,674; 12/142,680; and 12/142,684 which are continuations of the present application.

BACKGROUND OF THE INVENTION

1. Field of the Invention

This invention relates to a karaoke CD system, more particularly to a karaoke CD format and a device for processing audio signals utilizing the karaoke CD format which provides a user with selective reproduction of the voice of a player.

2. Description of Related Art

As shown in FIG. 1, a general disc data layout of a karaoke CD includes lead in/lead out areas 1 and 6 formed at the lead in and lead out of the CD for encoding CD-ROMXA data containing empty sectors of mode 2/form 2 therein, and program areas 2, 3, 4, and 5.

The program areas include a volume descriptor area 2 formed next to the lead in area 1 containing the path name of a CDI application program described in compact disc bridge system description. The basic data area 3 is for recording the title of a song, the name of the singer, the composer of the song, and the songwriter. The CDI application program area 4 is for recording an application program required for converting into compact disc bridge system description which will facilitate the operation of a disc in CD-RTOS (Real Time Operating System) in a CD-I/FMV player. The MPEG data area 5 is for recording MPEG (Moving Picture Experts Group) video and audio data.

The lead in area 1 has records of the number of songs, the period of time of each song and total period of time, and the lead in part and index part of each song. The lead out area 6 has record of the end of the program.

As shown in FIG. 2, a conventional karaoke CD system includes a first demodulation part 11 for demodulating EFM (Eight to Fourteen Modulation) signals. A second modulation part 12 for demodulating signals recorded in interleaved sectors for a CD-ROM upon receiving signals from the first demodulation part 11. A CPU 16 for demultiplexing system flow on receiving signals from the second demodulation part 12. A first, and a second memory 17 and 18 for storing video and audio data received from the CPU 16 respectively. A MPEG video decoder 19 and a MPEG audio decoder 20 for decoding MPEG video signals and MPEG audio signals of the video and audio data stored in the first and the second memories 17 and 18 respectively. A STC (System Time Clock) 23 for clocking the system time under the control of the CPU 16. A video and audio signal processing part 13 having a video presentation part 21 for comparing the STC of the STC part 23 to PTS (Presentation Time Stamps) in the bit stream received from the MPEG video decoder 19. An audio presentation part 22 for comparing the STC of the STC part 23 to PTS (Presentation Tune Stamps) in the bit stream received from the MPEG audio decoder 20. A control part 10 for controlling both the first and the second demodulation parts 11 and 12 and for controlling the video and audio signal processing part 13 according to a key signal applied thereto. A Digital-to-Analog (D/A) converter 14 for converting the video signal received from the video presentation part 21 and outputting the converted signal to a monitor under the control of the control part 10, and a D/A converter 15 for converting the audio signal received from the audio presentation part 22 and applying the converted signal to a speaker under the control of the control part 10.

The interleaving of a conventional MPEG video and MPEG audio sectors is as shown in FIG. 3.

Since the quantity of MPEG video data is much greater than the quantity of MPEG audio data, an MPEG audio sector A is periodically positioned in between MPEG video sectors V. For example, one MPEG audio sector A may be present in every four MPEG video sectors V.

Shown in Table 1 is the audio channel encoding, which is to be explained in detail hereinafter.

TABLE 1
Stereo Music Program Special Music Program
CH 0 Left mono without vocal
CH 1 Right mono with vocal

The karaoke CD format includes a stereo music program having a left audio channel for encoding on MPEG audio channel 0 and a right audio channel for encoding on MPEG audio channel 1, and a special music program having one channel for encoding music accompaniment sound without vocal and the other channel for encoding music accompaniment sound with vocal.

Operation of the conventional karaoke CD system is to be explained hereinafter.

The karaoke data is read in through a pick-up, having EFM demodulated and CD errors corrected through the first demodulation part 11 which is an EFM/CIRC (Cross Interleave Read Solomon Code) decoder. The data interleaved at encoding is demodulated through the second demodulation part 12 which is a CD-ROM decoder. The data is divided into audio data and video data through the video and audio signal processing part 13 under the demultiplexing operation of the CPU 16 and applied to the MPEG video decoder 19 and MPEG audio decoder 20 through the first and the second memories 17 and 18 respectively.

The MPEG video decoder 19 and the MPEG audio decoder 20, restore the compressed data, and compare the STC from the STC part 23 to the PTS in the restored data to control the presentation time of the data.

However, such a conventional karaoke-CD system has the disadvantage of being unable to obtain stereophony sound in the case where music without vocal and music with vocal of a specific music program is carried on the first channel (Left) and the second channel (Right).

SUMMARY OF THE INVENTION

The object of this invention is to provide a user with selective reproduction of playing sound, i.e., voice (song of a singer) and accompaniment sound.

These and other objects and features of this invention can be achieved by providing a karaoke CD format which is divided into video sectors and audio sectors, and the audio sectors are further divided into a part for recording accompaniment sound and vocal sound at the same time and another part for recording accompaniment sound only. The audio sectors are further provided to record coding information for distinguishing between the audio data stored in the two parts. There is provided a device for controlling audio signals using a karaoke CD format including a control means for controlling the entire system according to signals applied from outside the system. There is provided a demodulation means for demodulating a signal read in from a CO which distinguishes between a part containing recorded accompaniment sound and vocal sound at the same time, and another part containing recorded accompaniment sound only under the control of the control means. There is provided an audio signal processing means for processing audio signals using signals received from the demodulation means and transmitting data corresponding to a first data signal corresponding to the accompaniment sound and playing sound and a second data signal corresponding to the playing sound only, a switching means for selecting one of the first or second data signals and outputting the selected data under the control of the control means, and a D/A converting means for converting the data received from the switching means and applying the converted data to a speaker under the control of the control means.

According to one embodiment, the present invention is directed to a device for reproducing a digital data recorded on a medium, the digital data including a video data and an audio data, the audio data being composed of data units, the data units corresponding to at least one of: 1) a first type of digital audio data, and 2) a second type of digital audio data which includes at least one content different from the first type of digital audio data; each data unit including attribute information, which has: a) first information indicating a coding mode of the digital audio data, and b) second information, different than the first information, identifying the data unit as one of the first type of digital audio data or the second type of digital audio data; the data units of digital audio data being interleaved between data units of digital video data, the device comprising: a demodulator configured to demodulate the digital audio data to restore an original signal; a signal processor configured to receive the digital audio data, demodulated by the demodulator, extract the second information, and separate the data units corresponding to the first type of digital audio data from data units corresponding to the second type of digital audio data based on the extracted second information, the signal processor including a system time clock, a memory configured to store the data units corresponding to the first and second types of digital audio data, and an audio presentation part configured to receive the system time clock to control a presentation timing of the first or second types of digital audio data; and a controller, coupled to the signal processor, configured to control the signal processor to output the data units corresponding to the first or second types of the digital audio data designated by a user input, wherein the first or second types of digital audio data, designated by the user input, is identified using the second information.

According to one embodiment, the present invention is directed to a method for reproducing a digital data recorded on a medium, the digital data including a video data and an audio data, the audio data being composed of data units, the data units corresponding to at least one of: 1) a first type of digital audio data, and 2) a second type of digital audio data which includes at least one content different from the first type of digital audio data; each data unit including attribute information, which has: a) first information indicating a coding mode of the digital audio data, and b) second information, different than the first information, identifying the data unit as one of the first type of digital audio data or the second type of digital audio data; the data units of digital audio data being interleaved between data units of digital video data, the method comprising: demodulating the digital audio data to restore an original signal; receiving the demodulated audio data; extracting the second information; separating the data units corresponding to the first type of digital audio data from the data units corresponding to the second type of digital audio based on the extracted second information, by storing the first and second types of digital audio data in a memory, receiving the data units corresponding to the separated first or second types of digital audio data in an audio presentation part along with a system time clock to control a presentation timing of the first or second types of digital audio data; and outputting one of the first or second types of audio data in response to a user input designating one of the first or second types of audio data, wherein the first or second type of digital audio data, designated by the user input, is identified using the second information.

According to one embodiment, the present invention is directed to a device for processing a digital data, comprising: an audio data processor configured to receive data units of digital audio data, the data units corresponding to at least one of: 1) a first type of digital audio data, and 2) a second type of digital audio data which includes at least one content different from the first type of digital audio data: each data unitincludingbeing specified by attribute information, which has: a) coding information indicating a coding mode of the digital audio data, and b) identification information, different than the coding information, identifying the data unit as one of the first type of digital audio data or the second type of digital audio data; the audio data processor configured to extract the identification information, and separate the data units of the first type from the data units of the second type using the identification information, the audio data processor including a system time clock, a memory configured to store the data units of the first type and the second type, and an audio presentation part configured to receive the system time clock to control a presentation timing of the data units of the first type or the second type; and a control circuit configured to control the audio data processor to output audio data corresponding to the data units of one of the first or second types, based on the identification information.

According to one embodiment, the present invention is directed to a method for processing a digital data, comprising: receiving data units of digital audio data, the data units corresponding to at least one of: 1 ) a first type of digital audio data, and 2) a second type of digital audio data which includes at least one content different from the first type of digital audio data; each data unitincludingbeing specified by attribute information, which has: a) coding information indicating a coding mode of the digital audio data, and b) identification information, different than the coding information, identifying the data unit as one of the first type of digital audio data or the second type of digital audio data; extracting the identification information; separating the data units of the first type from the data units of the second type using the identification information by storing the data units of the first and second types in a memory, receiving the data units of the first or second types in an audio presentation part along with a system time clock to control a presentation timing of data units of the first or second type; and outputting audio data corresponding to the data units of the first or second type in response to the identification information.

According to one embodiment, the present invention is directed to a recording medium on which digital audio data is recorded, the digital audio data comprising of data units corresponding to at least one of: a first type of digital audio data, and a second type of digital audio data which includes at least one content different from the first type of digital audio data; each data unit including supplementary information, which has: a) coding information indicating a coding mode of the digital audio data, b) identification information, different than the coding information, identifying the data unit as one of the first type of digital audio data or the second type of digital audio data wherein the identification information being used for separating the data units of the first type from the data units of the second type stored in a memory and selectively outputting audio data corresponding to the data units of the first or second type, and c) time information controlling a presentation timing of data units of the first or second type.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a layout of a karaoke CD data.

FIG. 2 is a block diagram of a conventional karaoke CD system.

FIG. 3 is a diagram showing a conventional interleaving of MPEG audio/video sectors.

FIG. 4 is a diagram of a subheader in accordance with this invention.

FIG. 5 is a diagram showing an interleaving of MPEG audio/video sectors in accordance with this invention.

FIG. 6 is a schematic block diagram of a device for controlling karaoke CD audio signal in accordance with this invention.

FIG. 7 is an operational flow diagram of a device for controlling karaoke CD audio signals.

FIG. 8 is an MPEG audio format in accordance with this invention.

DETAILED DESCRIPTION OF THE INVENTION

This invention is to be explained in detail hereinafter, referring to the attached drawings.

A subheader in accordance with this invention is shown in FIG. 4. To distinguish audio data Aa, containing both vocal sound and accompaniment sound, and audio data Ab, containing only accompaniment data, there is provided subheader information in an audio packet, the subheader includes coding information encoded therein with a distinguishing value applied thereto.

The coding information is, included into a subheader of each sector at data encoding as a distinguishing value, standardized as $0 F in case of MPEG video, and $7 F in case of MPEG audio, wherein new coding information (for example 3F) is added to use for a distinguishing signal for the audio data sector Aa, having both vocal sound and accompaniment sound, and the audio data sector Ab having only accompaniment sound.

Interleaving of MPEG video and MPEG audio sectors is as shown in FIG. 5. The interleaving of video data and audio data sectors, in general has 4 to 5 consecutive video sectors V with one audio sector A added thereto, where coding information is used to distinguish a sector containing the encoded Aa and Ab.

Since the increase of buffer size due to the newly added audio sectors Aa and Ab is infinitesimal compared to the image data, it can be ignored.

That is, the karaoke CD format in accordance with this invention includes a CD format divided into video sectors and audio sectors, and the audio sectors are further divided into a part Aa for recording both accompaniment sound and vocal sound at the same time and a part Ab for recording accompaniment sound only, and the audio sectors are further provided to record coding information for distinguishing between audio data stored in the two parts.

As shown in FIG. 6, a device for controlling a karaoke CD audio signal in accordance with this invention in a state having the audio data interleaved as explained above, includes a control part 30, a demodulation part 40, an audio signal processing part 70, a switch 50, and a D/A converting part 60.

The control part 30 controls the entire system according to the signal applied through a key matrix 80.

The demodulation part 40 includes a first demodulator 41 for carrying out EFM demodulation from the CD format provided to distinguish a part Aa for recording accompaniment sound and vocal sound at the same time, and a part Ab for recording accompaniment sound only, where the part is under the control of the control part 30, and a second demodulator 42 for demodulating signals recorded in interleaved sectors for a CD-ROM from the signal received from the first demodulator 41 and applying the second demodulated signal to the audio processing part 70 under the control of the control part 30, thereby demodulating the signal read in from the CD format provided to distinguish a part Aa, for recording accompaniment sound and vocal sound at the same time, and a part Ab, for recording accompaniment sound only, under the control of the control part 30.

The audio signal processing part 70 includes a CPU 71 for separating audio data and time data from the signal received from the second demodulator 42 under the control of the control part 30, a STC (System Time Clock) part 77 for generating a synchronizing signal using time information received from the CPU 71, a memory 72 for storing the audio data received from the CPU 71, an MPEG audio decoder 73 for decoding the MPEG audio data stored in the memory 72, a demultiplexer 74 for separating data received form the MPEG audio decoder 73 into data corresponding to accompaniment sound and vocal sound and data corresponding to accompaniment sound and outputting the separated data under the control of the CPU 71, a first audio presentation part 75 for comparing the PTS (Presentation Time Stamp) in the data corresponding to the accompaniment sound received from the demultiplexer 74 to the signal received from the STC 77 to control presentation time of the data, and a second audio presentation part 76 for comparing the PTS (Presentation Time Stamp) in the data corresponding to accompaniment sound and vocal sound received from the demultiplexer 74 to the signal received from the STC 77 to control presentation time of the data, thereby processing the audio signal using signals received from the demodulation part 40 to separate the data into data corresponding to a first data containing accompaniment sound only, and outputting the separate data.

The switch 50 selects one of the data corresponding to the accompaniment sound and vocal sound, or to only the accompaniment sound received from the first and the second audio presentation parts 75 and 76 of the audio signal processing part 70 and transmits the selected data under the control of the control part 30.

The D/A converter 60 converts the data received from the switch 50 under the control of the control part 30.

The system and operation for processing a video signal is the same as for a conventional karaoke CD system.

Operation of the device for controlling a karaoke CD audio signal in accordance with this invention as described above is to be explained hereinafter.

The encoded karaoke-CD data having coding information applied thereto is added with a distinguishing value and has EFM signals demodulated through the first demodulation part 41 which is a EFM/CIRC (Cross Interleave Read Solomon Code) and errors of the CD are corrected. The interleaved data at encoding is demodulated through the second demodulation part 42 which is a CD-ROM decoder, and is separated into audio, video, and time data in the CPU 71.

In the instant, of audio data, the demultiplexing signal coming in at the reading in of the coding information is applied to the demultiplexer 74 for operation of the demultiplexer 74.

Of the data demultiplexed in the CPU 71, the MPEG audio data is stored in the memory 72 temporarily, has the compression restored through the MPEG audio decoder 73, and is transmitted. The demodulated audio data received from the MPEG audio decoder 73 is separated into audio data carrying accompaniment sound only and audio data carrying accompaniment sound and vocal sound through the demultiplexer 74, and applied to the first audio data presentation part 75 and the second audio presentation part 76 respectively under the control of the CPU 71.

The audio demultiplexing signal received from the CPU 71 controls the first audio presentation part 75 to compare the received audio data Ab, carrying accompaniment sound only out of the audio signal applied thereto, to a PTS to control the presentation time and controls the second audio presentation part 76 to compare the received audio data Aa, carrying voice, i.e., vocal sound and accompaniment sound out of the audio signal applied thereto to a PTS to control the presentation time. The audio data received from the first and the second audio presentation parts 75 and 76 is applied to the D/A converter 60 through a switching operation of the switch 50 under the control of the control part 30, where it is converted in the D/A converter 60 and output to a speaker.

In this instant, the switch 50 is operated under the control of the control part 30 which is operated according to the key signal applied through the key matrix 80.

Operation of a karaoke CD audio system is to be explained hereinafter, referring to FIG. 7.

First, a subheader and packet header are read 100, and demultiplexing is carried out to separate into an audio demultiplexing signal and a MPEG audio signal 101. The separated MPEG audio signal is decoded to separate into audio signals containing accompaniment sound only, and audio signals containing both vocal sound and accompaniment sound using the audio demultiplexing signal 102, and the PTS of each packet is read to synchronize and transmit signals 103.

The MPEG audio format, as shown in FIG. 8, generates separated MPEG audio signals Aa and Ab, and audio demultiplexing signals by extracting coding information from the subheaders of each sector, and by reading the packet header and comparing it to the STC, thereby the presentation time of the data can be controlled.

As has been explained, this invention for a karaoke CD system increases the enjoyment of karaoke by reproducing audio data containing a player's voice, i.e., vocal sound and accompaniment sound, and audio data containing accompaniment sound selectively, which permits stereophony sound corresponding to the CD sound.

Although the invention has been described in conjunction with specific embodiments, it is evident that many alternatives and variations will be apparent to those skilled in the art in light of the foregoing description. Accordingly, the invention is intended to embrace all of the alternatives and variations that fall within the spirit and scope of the appended claims.

Claims (27)

1. A device for reproducing a digital signal data recorded on a medium, the digital signal data including a video signal data and an audio signal data, the audio signal data being composed of data units, the data units corresponding to at least one of:
1) a first type of digital audio data, and
2) a second type of digital audio data which includes at least one content different from the first type of digital audio data;
each data unit including attribute information, which has:
a) first information indicating a coding mode of the digital audio data, and
b) second information, different than said first information, identifying the data unit as one of the first type of digital audio data or the second type of digital audio data;
the data units of digital audio signal data being interleaved between data units of digital video signal data, the device comprising:
a demodulator for demodulating configured to demodulate the digital signal audio data to restore an original signal;
a signal processor for receiving configured to receive the digital audio signal data, demodulated by the demodulator, extracting extract the second information, separating and separate the data units corresponding to a the first type of digital audio signal data from data units corresponding to a the second type of digital audio signal data based on the extracted second information, said signal processor including a system time clock, a memory for storing configured to store the data units corresponding to the first type and the second type types of digital audio signal data, and first or second an audio presentation parts receiving part configured to receive the system time clock to control a presentation timing of the first type or the second type types of digital audio signal data; and
a controller, coupled to the signal processor, controlling configured to control the signal processor to output the data units corresponding to the first type or the second type types of the digital audio signal data designated by a user input, wherein the first or second type types of digital audio signal data, designated by the user input, is identified using the second information.
2. A device as claimed in claim 1, wherein the first type of digital audio signal data corresponds to accompaniment sound.
3. A device as claimed in claim 1, wherein the audio signal is encoded by an MPEG coding mode, wherein the signal processor further comprises:
an MPEG audio decoder for decoding configured to decode the audio signal data.
4. A method for reproducing a digital signal data recorded on a medium, said digital signal data including a video signal data and an audio signal data, the audio signal data being composed of data units, the data units corresponding to at least one of:
1) a first type of digital audio data, and
2) a second type of digital audio data which includes at least one content different from the first type of digital audio data;
 each data unit including attribute information, which has:
a) first information indicating a coding mode of the digital audio data, and
b) second information, different than said first information, identifying the data unit as one of the first type of digital audio data or the second type of digital audio data;
 the data units of digital audio signal data being interleaved between data units of digital video signal data, the method comprising the steps of :
demodulating the digital signal audio data to restore an original signal;
receiving the demodulated audio signal data;
extracting the second information;
separating the data units corresponding to a the first type of digital audio signal data from the data units corresponding to a the second type of digital audio signal based on the extracted second information, by storing the first and second types of digital audio signals data in a memory, receiving the data units corresponding to the first and or second types of digital audio signals data in first and second an audio presentation parts part along with a system time clock to control a presentation timing of the first or second type types of digital audio signal data; and
outputting one of the first or second types of audio signals data in response to a user input designating one of the first or second types of audio signals data, wherein the first or second type of digital audio signal data, designated by the user input, is identified using the second information.
5. The method of claim 4, wherein the step of separating includes separating the first type of the digital audio signal data representing accompaniment sound.
6. A device for processing a digital signal data, comprising:
an audio signal data processor receiving configured to receive data units of digital audio data, the data units corresponding to at least one of:
1) a first type of digital audio data, and
2) a second type of digital audio data which includes at least one content different from the first type of digital audio data;
 each data unit including being specified by attribute information, which has:
a) coding information indicating a coding mode of the digital audio data, and
b) identification information, different than said coding information, identifying the data unit as one of the first type of digital audio data or the second type of digital audio data;
the audio signal data processor extracting configured to extract the identification information, and separating separate the data units of the first type from the data units of the second type using the identification information, said signal audio data processor including a system time clock, a memory for storing configured to store the data units of the first type and the second type, and first and second an audio presentation parts receiving part configured to receive the system time clock to control a presentation timing of the data units of the first type or the second type; and
a control circuit controlling configured to control the audio signal data processor to output an audio signal data corresponding to the data units of one of the first or second types, based on the identification information.
7. The device of claim 6, wherein the audio data of the first type includes accompaniment sound.
8. The device of claim 6, wherein the data units of digital audio data are interleaved with digital video data, and wherein the audio data of the first type includes accompaniment sound and vocals, which are associated with the digital video data.
9. The device of claim 6, wherein the audio signal data processor compares is configured to compare the system time clock to timing information in the digital audio data, and outputs output audio data with a timing based on the comparison.
10. The device of claim 6, wherein the audio signal data processor MPEG decodes is configured to decode the audio data encoded in MPEG format.
11. The device of claim 6, further comprising:
a demodulator demodulating configured to demodulate the digital audio data prior to receipt by the audio signal data processor.
12. A method for processing a digital signal data, comprising:
receiving data units of digital audio data, the data units corresponding to at least one of:
1) a first type of digital audio data, and
2) a second type of digital audio data which includes at least one content different from the first type of digital audio data;
 each data unit including being specified by attribute information, which has:
a) coding information indicating a coding mode of the digital audio data, and
b) identification information, different than said coding information, identifying the data unit as one of the first type of digital audio data or the second type of digital audio data;
extracting the identification information;
separating the data units of the first type from the data units of the second type using the identification information by storing the data units of the first and second types in a memory, receiving the data units of the first and or second types in first or second an audio presentation parts part along with a system time clock to control a presentation timing of data units of the first or second type; and
outputting audio data corresponding to the data units of the first or second type in response to the identification information.
13. The method of claim 12, wherein the audio data of the first type includes accompaniment sound.
14. The method of claim 12, wherein the data units of digital audio data are interleaved with digital video data, and wherein the audio data of the first type includes accompaniment sound and vocals, which are associated with the digital video data.
15. The method of claim 12, further comprising:
comparing the system time clock to timing information in the digital audio data; and
outputting the audio data with a timing based on the comparison.
16. The device method of claim 12, wherein the separating step includes MPEG decoding decoding the audio data encoded in MPEG format.
17. The device of claim 1, wherein the signal audio data processor includes a switch that configured to selectively outputs output the data units of the first type or the second type.
18. A recording medium on which digital audio data is recorded, the digital audio data comprising of data units corresponding to at least one of:
1) a first type of digital audio data, and
2) a second type of digital audio data which includes at least one content different from the first type of digital audio data;
each data unit including supplementary information, which has:
a) coding information indicating a coding mode of the digital audio data, and
b) identification information, different than said coding information, identifying the data unit as one of the first type of digital audio data or the second type of digital audio data wherein the identification information being used for separating the data units of the first type from the data units of the second type stored in a memory and selectively outputting audio data corresponding to the data units of the first or second type, and
c) time information controlling a presentation timing of data units of the first or second type.
19. The recording medium of claim 18, wherein the data unit corresponds to a sector.
20. The recording medium of claim 18, wherein the supplementary information is included in a header of the data unit.
21. The recording medium of claim 18, wherein the first or the second type of audio data is interleaved with digital video data.
22. The recording medium of claim 18, wherein the data units correspond to packets that are multiplexed with each other.
23. The recording medium of claim 18, wherein the coding mode is a coding mode for indicating a MPEG format.
24. The recording medium of claim 18, wherein the time information includes a PTS (Presentation Time Stamp).
25. The recording medium of claim 18, wherein the digital audio data of the first type includes accompaniment sound.
26. The recording medium of claim 18, wherein the digital audio data of the second type includes accompaniment sound and vocal sound.
27. The recording medium of claim 18, wherein the first and second types of digital audio data are decoded based on the coding information.
US11058630 1993-09-17 2005-02-16 Apparatus and method for processing audio signals recorded on a medium Expired - Lifetime USRE42297E1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
KR93-18841 1993-09-17
KR930018841A KR960007947B1 (en) 1993-09-17 1993-09-17 Karaoke-cd and audio control apparatus by using that
US30728894 true 1994-09-16 1994-09-16
US08735572 US6535467B1 (en) 1993-09-17 1996-10-23 Apparatus and method for processing audio signals recorded on a medium
US09209280 US6721249B2 (en) 1993-09-17 1998-12-11 Apparatus and method for processing audio signals recorded on a medium
US84861604 true 2004-05-19 2004-05-19
US11058630 USRE42297E1 (en) 1993-09-17 2005-02-16 Apparatus and method for processing audio signals recorded on a medium

Applications Claiming Priority (13)

Application Number Priority Date Filing Date Title
US11058630 USRE42297E1 (en) 1993-09-17 2005-02-16 Apparatus and method for processing audio signals recorded on a medium
US11905506 USRE42341E1 (en) 1993-09-17 2007-10-01 Apparatus and method for processing audio signals recorded on a medium
US12142663 USRE42321E1 (en) 1993-09-17 2008-06-19 Apparatus and method for processing audio signals recorded on a medium
US12142642 USRE42342E1 (en) 1993-09-17 2008-06-19 Apparatus and method for processing audio signals recorded on a medium
US12142674 USRE42711E1 (en) 1993-09-17 2008-06-19 Apparatus and method for processing audio signals recorded on a medium
US12142658 USRE42320E1 (en) 1993-09-17 2008-06-19 Apparatus and method for processing audio signals recorded on a medium
US12142680 USRE42322E1 (en) 1993-09-17 2008-06-19 Apparatus and method for processing audio signals recorded on a medium
US12142684 USRE42323E1 (en) 1993-09-17 2008-06-19 Apparatus and method for processing audio signals recorded on a medium
US13099186 USRE44231E1 (en) 1993-09-17 2011-05-02 Apparatus and method for processing audio signals recorded on a medium
US13408671 USRE44259E1 (en) 1993-09-17 2012-02-29 Apparatus and method for processing audio signals recorded on a medium
US13408648 USRE44282E1 (en) 1993-09-17 2012-02-29 Apparatus and method for processing audio signals recorded on a medium
US13871211 USRE44741E1 (en) 1993-09-17 2013-04-26 Apparatus and method for processing audio signals recorded on a medium
US13871243 USRE44729E1 (en) 1993-09-17 2013-04-26 Apparatus and method for processing audio signals recorded on a medium

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
US09209280 Reissue US6721249B2 (en) 1993-09-17 1998-12-11 Apparatus and method for processing audio signals recorded on a medium
US84861604 Continuation 2004-05-19 2004-05-19

Related Child Applications (2)

Application Number Title Priority Date Filing Date
US09209280 Continuation US6721249B2 (en) 1993-09-17 1998-12-11 Apparatus and method for processing audio signals recorded on a medium
US12142684 Continuation USRE42323E1 (en) 1993-09-17 2008-06-19 Apparatus and method for processing audio signals recorded on a medium

Publications (1)

Publication Number Publication Date
USRE42297E1 true USRE42297E1 (en) 2011-04-19

Family

ID=19363845

Family Applications (16)

Application Number Title Priority Date Filing Date
US08735572 Expired - Fee Related US6535467B1 (en) 1993-09-17 1996-10-23 Apparatus and method for processing audio signals recorded on a medium
US09209280 Expired - Lifetime US6721249B2 (en) 1993-09-17 1998-12-11 Apparatus and method for processing audio signals recorded on a medium
US10364349 Expired - Fee Related US6714494B2 (en) 1993-09-17 2003-02-12 Apparatus and method for processing audio signals recorded on a medium
US11058630 Expired - Lifetime USRE42297E1 (en) 1993-09-17 2005-02-16 Apparatus and method for processing audio signals recorded on a medium
US11905506 Expired - Lifetime USRE42341E1 (en) 1993-09-17 2007-10-01 Apparatus and method for processing audio signals recorded on a medium
US12142680 Expired - Lifetime USRE42322E1 (en) 1993-09-17 2008-06-19 Apparatus and method for processing audio signals recorded on a medium
US12142674 Expired - Lifetime USRE42711E1 (en) 1993-09-17 2008-06-19 Apparatus and method for processing audio signals recorded on a medium
US12142663 Expired - Lifetime USRE42321E1 (en) 1993-09-17 2008-06-19 Apparatus and method for processing audio signals recorded on a medium
US12142642 Expired - Lifetime USRE42342E1 (en) 1993-09-17 2008-06-19 Apparatus and method for processing audio signals recorded on a medium
US12142684 Expired - Lifetime USRE42323E1 (en) 1993-09-17 2008-06-19 Apparatus and method for processing audio signals recorded on a medium
US12142658 Expired - Lifetime USRE42320E1 (en) 1993-09-17 2008-06-19 Apparatus and method for processing audio signals recorded on a medium
US13099186 Expired - Lifetime USRE44231E1 (en) 1993-09-17 2011-05-02 Apparatus and method for processing audio signals recorded on a medium
US13408648 Expired - Lifetime USRE44282E1 (en) 1993-09-17 2012-02-29 Apparatus and method for processing audio signals recorded on a medium
US13408671 Expired - Lifetime USRE44259E1 (en) 1993-09-17 2012-02-29 Apparatus and method for processing audio signals recorded on a medium
US13871243 Expired - Lifetime USRE44729E1 (en) 1993-09-17 2013-04-26 Apparatus and method for processing audio signals recorded on a medium
US13871211 Expired - Fee Related USRE44741E1 (en) 1993-09-17 2013-04-26 Apparatus and method for processing audio signals recorded on a medium

Family Applications Before (3)

Application Number Title Priority Date Filing Date
US08735572 Expired - Fee Related US6535467B1 (en) 1993-09-17 1996-10-23 Apparatus and method for processing audio signals recorded on a medium
US09209280 Expired - Lifetime US6721249B2 (en) 1993-09-17 1998-12-11 Apparatus and method for processing audio signals recorded on a medium
US10364349 Expired - Fee Related US6714494B2 (en) 1993-09-17 2003-02-12 Apparatus and method for processing audio signals recorded on a medium

Family Applications After (12)

Application Number Title Priority Date Filing Date
US11905506 Expired - Lifetime USRE42341E1 (en) 1993-09-17 2007-10-01 Apparatus and method for processing audio signals recorded on a medium
US12142680 Expired - Lifetime USRE42322E1 (en) 1993-09-17 2008-06-19 Apparatus and method for processing audio signals recorded on a medium
US12142674 Expired - Lifetime USRE42711E1 (en) 1993-09-17 2008-06-19 Apparatus and method for processing audio signals recorded on a medium
US12142663 Expired - Lifetime USRE42321E1 (en) 1993-09-17 2008-06-19 Apparatus and method for processing audio signals recorded on a medium
US12142642 Expired - Lifetime USRE42342E1 (en) 1993-09-17 2008-06-19 Apparatus and method for processing audio signals recorded on a medium
US12142684 Expired - Lifetime USRE42323E1 (en) 1993-09-17 2008-06-19 Apparatus and method for processing audio signals recorded on a medium
US12142658 Expired - Lifetime USRE42320E1 (en) 1993-09-17 2008-06-19 Apparatus and method for processing audio signals recorded on a medium
US13099186 Expired - Lifetime USRE44231E1 (en) 1993-09-17 2011-05-02 Apparatus and method for processing audio signals recorded on a medium
US13408648 Expired - Lifetime USRE44282E1 (en) 1993-09-17 2012-02-29 Apparatus and method for processing audio signals recorded on a medium
US13408671 Expired - Lifetime USRE44259E1 (en) 1993-09-17 2012-02-29 Apparatus and method for processing audio signals recorded on a medium
US13871243 Expired - Lifetime USRE44729E1 (en) 1993-09-17 2013-04-26 Apparatus and method for processing audio signals recorded on a medium
US13871211 Expired - Fee Related USRE44741E1 (en) 1993-09-17 2013-04-26 Apparatus and method for processing audio signals recorded on a medium

Country Status (4)

Country Link
US (16) US6535467B1 (en)
JP (6) JPH07152391A (en)
KR (1) KR960007947B1 (en)
CN (1) CN1040705C (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR960007947B1 (en) 1993-09-17 1996-06-17 구자홍 Karaoke-cd and audio control apparatus by using that
JP4059410B2 (en) * 1998-10-07 2008-03-12 株式会社バンダイナムコゲームス Game apparatus and information storage medium
JP4727780B2 (en) * 1999-09-03 2011-07-20 ソニー株式会社 Reproducing apparatus, the recording apparatus
US8250617B2 (en) * 1999-10-29 2012-08-21 Opentv, Inc. System and method for providing multi-perspective instant replay
KR100588874B1 (en) * 2003-10-06 2006-06-14 엘지전자 주식회사 An image display device for having singing room capability and method of controlling the same
WO2007083321A3 (en) * 2006-01-17 2007-10-04 Trinity Future In Pvt Ltd An audio player with controlled duplication facility
JP5394931B2 (en) * 2006-11-24 2014-01-22 エルジー エレクトロニクス インコーポレイティド Decoding method and apparatus for object-based audio signal
JP5230112B2 (en) * 2007-03-01 2013-07-10 キヤノン株式会社 Information distribution apparatus, information distribution method and information distribution program
CN102543054A (en) * 2010-12-28 2012-07-04 吴忠豪 Networked and non-networked intelligent synchronous song-requesting vocal accompaniment device
CN105161120B (en) * 2015-08-27 2017-05-31 广州酷狗计算机科技有限公司 Method and apparatus for switching the original accompaniment

Citations (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4757393A (en) 1982-01-25 1988-07-12 Discovision Associates Multiple variable rate audio message playback
JPH01232573A (en) 1988-03-11 1989-09-18 Pioneer Electron Corp Recording and reproducing system
JPH02235260A (en) 1989-03-09 1990-09-18 Pioneer Electron Corp Voice changing circuit
JPH02296413A (en) 1989-05-11 1990-12-07 Sony Corp Data selection circuit
JPH03128586A (en) 1989-10-13 1991-05-31 Victor Co Of Japan Ltd Recording and reproducing system for digital data of picture and digital data of sound related to picture
US5126981A (en) 1989-06-28 1992-06-30 Samsung Electronics Co., Ltd. Mixed simulcast circuit
JPH04265569A (en) 1991-02-19 1992-09-21 Canon Inc Sound signal recording device and reproducing device
US5177728A (en) 1989-03-07 1993-01-05 Pioneer Electronic Corporation Disc player for playing different types of discs which automatically identifies the type of a currently loaded disc
JPH0512831A (en) 1991-07-05 1993-01-22 Sony Corp Information recorded medium and its reproducing device
WO1993013626A1 (en) 1991-12-27 1993-07-08 Sony Corporation Image data coding method, image data decoding method, image data coding device, image data decoding device, and image recording medium
JPH05236009A (en) 1992-02-19 1993-09-10 Mitsubishi Electric Corp Multi-medium multiplexing system
US5257253A (en) 1989-03-07 1993-10-26 Pioneer Electronic Corporation Laser vision disc with digital sound (LDD) disc player for reproducing analog audio signals mixed with digital audio signals
US5289288A (en) 1990-07-20 1994-02-22 Mti Associates Method and apparatus for encoding a video signal having multi-language capabilities
US5359463A (en) 1989-06-19 1994-10-25 Sony Corporation Record/reproduce apparatus having means for switching automatically between different types of audio
JPH07152391A (en) 1993-09-17 1995-06-16 Gold Star Co Ltd Karaoke cd format and audio signal controller using the same
US5475499A (en) 1985-03-08 1995-12-12 Canon Kabushiki Kaisha Recording/reproducing apparatus where the video signal indicates the location of a randomly recorded correspondence audio signal
US5497241A (en) 1993-10-29 1996-03-05 Time Warner Entertainment Co., L.P. System and method for controlling display of motion picture subtitles in a selected language during play of a software carrier
EP0710491A1 (en) 1994-11-02 1996-05-08 The Population Council Center For Biomedical Research Subdermally implantable device
US5555098A (en) 1991-12-05 1996-09-10 Eastman Kodak Company Method and apparatus for providing multiple programmed audio/still image presentations from a digital disc image player
US5850500A (en) 1995-06-28 1998-12-15 Kabushiki Kaisha Toshiba Recording medium comprising a plurality of different languages which are selectable independently of each other
US5933398A (en) 1991-07-05 1999-08-03 Sony Corporation Apparatus for reproducing recording medium with synthesis method and default value and method therefor
WO2001039836A1 (en) 1999-12-01 2001-06-07 Natco Pharma Limited A rapid acting freeze dired oral pharmaceutical composition for treating migraine

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5497247A (en) 1993-04-30 1996-03-05 Canon Kabushiki Kaisha Facsimile apparatus capable of outputting a plurality of copies of received information and handling the occurrence of errors therein

Patent Citations (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4757393A (en) 1982-01-25 1988-07-12 Discovision Associates Multiple variable rate audio message playback
US5475499A (en) 1985-03-08 1995-12-12 Canon Kabushiki Kaisha Recording/reproducing apparatus where the video signal indicates the location of a randomly recorded correspondence audio signal
JPH01232573A (en) 1988-03-11 1989-09-18 Pioneer Electron Corp Recording and reproducing system
US5177728A (en) 1989-03-07 1993-01-05 Pioneer Electronic Corporation Disc player for playing different types of discs which automatically identifies the type of a currently loaded disc
US5257253A (en) 1989-03-07 1993-10-26 Pioneer Electronic Corporation Laser vision disc with digital sound (LDD) disc player for reproducing analog audio signals mixed with digital audio signals
JPH02235260A (en) 1989-03-09 1990-09-18 Pioneer Electron Corp Voice changing circuit
JPH02296413A (en) 1989-05-11 1990-12-07 Sony Corp Data selection circuit
US5359463A (en) 1989-06-19 1994-10-25 Sony Corporation Record/reproduce apparatus having means for switching automatically between different types of audio
US5126981A (en) 1989-06-28 1992-06-30 Samsung Electronics Co., Ltd. Mixed simulcast circuit
JPH03128586A (en) 1989-10-13 1991-05-31 Victor Co Of Japan Ltd Recording and reproducing system for digital data of picture and digital data of sound related to picture
US5289288A (en) 1990-07-20 1994-02-22 Mti Associates Method and apparatus for encoding a video signal having multi-language capabilities
JPH04265569A (en) 1991-02-19 1992-09-21 Canon Inc Sound signal recording device and reproducing device
US5933398A (en) 1991-07-05 1999-08-03 Sony Corporation Apparatus for reproducing recording medium with synthesis method and default value and method therefor
JPH0512831A (en) 1991-07-05 1993-01-22 Sony Corp Information recorded medium and its reproducing device
US5555098A (en) 1991-12-05 1996-09-10 Eastman Kodak Company Method and apparatus for providing multiple programmed audio/still image presentations from a digital disc image player
WO1993013626A1 (en) 1991-12-27 1993-07-08 Sony Corporation Image data coding method, image data decoding method, image data coding device, image data decoding device, and image recording medium
JPH05236009A (en) 1992-02-19 1993-09-10 Mitsubishi Electric Corp Multi-medium multiplexing system
JPH07152391A (en) 1993-09-17 1995-06-16 Gold Star Co Ltd Karaoke cd format and audio signal controller using the same
US6535467B1 (en) 1993-09-17 2003-03-18 Han Jung Apparatus and method for processing audio signals recorded on a medium
US5497241A (en) 1993-10-29 1996-03-05 Time Warner Entertainment Co., L.P. System and method for controlling display of motion picture subtitles in a selected language during play of a software carrier
EP0710491A1 (en) 1994-11-02 1996-05-08 The Population Council Center For Biomedical Research Subdermally implantable device
US5850500A (en) 1995-06-28 1998-12-15 Kabushiki Kaisha Toshiba Recording medium comprising a plurality of different languages which are selectable independently of each other
WO2001039836A1 (en) 1999-12-01 2001-06-07 Natco Pharma Limited A rapid acting freeze dired oral pharmaceutical composition for treating migraine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Sugahara et al., MPEG1 CD, "An application of MPEG1 coding technology for Karaoke-CD moving picture," ITEJ Technical Report, The Institute of Television Engineers of Japan, vol. 17, No. 20, Mar. 1993, pp. 13-18.

Also Published As

Publication number Publication date Type
KR960007947B1 (en) 1996-06-17 grant
JP2006139267A (en) 2006-06-01 application
USRE42322E1 (en) 2011-05-03 grant
US6714494B2 (en) 2004-03-30 grant
US20010014064A1 (en) 2001-08-16 application
JP2010160510A (en) 2010-07-22 application
USRE44282E1 (en) 2013-06-11 grant
JP2009116364A (en) 2009-05-28 application
US6721249B2 (en) 2004-04-13 grant
JP2009116362A (en) 2009-05-28 application
USRE42321E1 (en) 2011-05-03 grant
US6535467B1 (en) 2003-03-18 grant
USRE44231E1 (en) 2013-05-21 grant
US20030112724A1 (en) 2003-06-19 application
JP2009116363A (en) 2009-05-28 application
JPH07152391A (en) 1995-06-16 application
USRE44259E1 (en) 2013-06-04 grant
USRE44741E1 (en) 2014-02-04 grant
CN1040705C (en) 1998-11-11 grant
USRE42341E1 (en) 2011-05-10 grant
USRE42320E1 (en) 2011-05-03 grant
USRE42711E1 (en) 2011-09-20 grant
USRE42323E1 (en) 2011-05-03 grant
USRE42342E1 (en) 2011-05-10 grant
USRE44729E1 (en) 2014-01-28 grant
CN1115480A (en) 1996-01-24 application

Similar Documents

Publication Publication Date Title
US5850500A (en) Recording medium comprising a plurality of different languages which are selectable independently of each other
US6198877B1 (en) Method and apparatus for recording programs formed of picture and audio data, data recording medium having programs formed of picture and audio data recorded thereon, and method and apparatus for reproducing programs having picture and audio data
US5130816A (en) Method and apparatus for recording and reproducing information including plural channel audio signals
US5742569A (en) Information record medium, apparatus for recording the same and apparatus for reproducing the same
EP0074841A2 (en) Recording and using cue data
EP0165320A1 (en) Disk-shaped recording medium and apparatus for reproducing the same
US6192189B1 (en) Data recording method and apparatus, data recorded medium and data reproducing method and apparatus
US5953375A (en) Packing method, recording medium and transmitting and receiving apparatus for variable length data
US5892848A (en) Data arranging method and medium for data recording or transfer, and signal processing apparatus for the method and medium
JPH0831096A (en) Audio data coding recorder and audio data decoding reproducing device
WO1997015924A1 (en) Recording medium and reproducing device
EP0558848A2 (en) Recording medium and system for reproducing recorded information therefrom
US5159143A (en) Information recording medium player for controlling musical devices using a musical instrument digital interface (MIDI) format signal
JPH08314485A (en) Medium and method for information recording and information reproducing method and its device
US5796910A (en) Decoder for decoding still picture data and data on which data length of still picture data is recorded, reproducing apparatus for reproducing recording medium, and reproducing method thereof
US5862107A (en) Disc player capable of automatically interchanging a plurality of loaded discs
US6112012A (en) Recording multiplexed plural data encoded by plural methods and decoding same according to particular decoding method
US6549579B2 (en) Transmitting and recording method, reproducing method, and reproducing apparatus of information and its recording medium
JPH07284064A (en) Recording method for audio information and moving picture information and its recording medium
US6535467B1 (en) Apparatus and method for processing audio signals recorded on a medium
JPH07284065A (en) Reproducing method for audio information and moving picture information
JPH07282544A (en) Recording medium for audio information and moving image information and reproducing device therefor
JP2005011457A (en) Audio broadcast receiver
JPH08163507A (en) Reproduction device
KR20040081992A (en) Method for converting and displaying text data from audio data

Legal Events

Date Code Title Description
CC Certificate of correction