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公开(公告)号：AU3043095A
公开(公告)日：1996-03-21
申请号：AU3043095
申请日：1995-09-04
Applicant: SONY CORP
Inventor： AOKI NOBUYUKI , HIRANAKA DAISUKE , NITTA HAJIME , OTA KIYOSHI
IPC: G11B27/00 , G11B27/10 , H04N5/783 , H04N5/85 , H04N9/804 , H04N9/877 , G11B27/031 , G11B27/034 , G11B19/00
Abstract: A data reproducing apparatus enables special reproduction, such as backward reproduction, to be run quickly when specified. The apparatus comprises demodulating means (3) for demodulating data read from a digital video disk (1) by a pickup (2), storage means (4) for temporarily storing the demodulated data, a decoder (5) for decoding data read out of the storage means into original video signals, and a control circuit (8) for controlling the storage means (4) so that an unread data area and an already-read data area in the storage means take up about half of a total memory capacity, respectively, so that data necessary for reverse reproduction or the like is left in the storage means, thus allowing the special reproduction to be run quickly.
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公开(公告)号：CA2169118C
公开(公告)日：2007-04-17
申请号：CA2169118
申请日：1996-02-08
Applicant: SONY CORP
Inventor： NITTA HAJIME , OTA KIYOSHI
IPC: G11B20/10 , H04N5/765 , H03M7/00 , H04N5/781 , H04N5/783 , H04N5/85 , H04N5/92 , H04N5/937 , H04N9/804 , H04N9/877
Abstract: Data decoding decodes data reproduced from a record medium and stored in a memory. Since decoding requires a sufficient amount of data to be store d in memory especially when the data is, for example, predictively encoded, a system controller is provided which inhibits previously read data from being overwritten in memory. Thus, when a reverse reproduction operation is suddenly initiated during a forward reproduction operation, a sufficient amount of data is reserved in the memory for decoding the data in the reverse direction. Similarly, the system controller inhibits the memory from writing over previously read data during a reverse reproduction and a sufficient amount of data is reserved fo r decoding when forward reproduction is resumed.
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公开(公告)号：DE69635062T2
公开(公告)日：2006-06-14
申请号：DE69635062
申请日：1996-02-09
Applicant: SONY CORP
Inventor： NITTA HAJIME , OTA KIYOSHI
IPC: H04N5/765 , H04N9/87 , G11B20/10 , H03M7/00 , H04N1/417 , H04N5/781 , H04N5/783 , H04N5/85 , H04N5/92 , H04N5/937 , H04N9/804 , H04N9/877
Abstract: Data decoding apparatus decodes data reproduced from a record medium (1) and stored in a memory (7). Since decoding requires a sufficient amount of data to be stored in memory, especially when the data is, for example, predictively encoded, a system controller (21) inhibits previously read data from being overwritten in the memory (7). Thus, when a reverse reproduction operation is suddenly initiated during a forward reproduction operation, a sufficient amount of data is reserved in the memory (7) for decoding the data in the reverse direction. Similarly, the system controller (21) inhibits the memory (7) from writing over previously read data during reverse reproduction and a sufficient amount of data is reserved for decoding when forward reproduction is resumed.
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公开(公告)号：ES2243947T3
公开(公告)日：2005-12-01
申请号：ES96300899
申请日：1996-02-09
Applicant: SONY CORP
Inventor： NITTA HAJIME , OTA KIYOSHI
IPC: H04N5/765 , G11B20/10 , H03M7/00 , H04N5/781 , H04N5/783 , H04N5/85 , H04N5/92 , H04N5/937 , H04N9/804 , H04N9/877 , H04N9/87 , H04N1/417
Abstract: UN APARATO DE DESCODIFICACION DE DA TOS DESCODIFICA LOS DATOS REPRODUCIDOS A PARTIR DE UN MEDIO DE GRABACION (1) Y LOS ALMACENA EN UNA MEMORIA (7). DESDE EL MOMENTO QUE LA DESCODIFICACION REQUIERE UNA CANTIDAD SUFICIENTE DE DATOS PARA SER ALMACENADOS EN LA MEMORIA, ESPECIALMENTE CUANDO LOS DATOS ESTAN, POR EJEMPLO, MODIFICADOS DE FORMA PREDICTIVA, UN CONTROLADOR DEL SISTEMA (21) IMPIDE QUE LOS DATOS PREVIAMENTE LEIDOS SEAN SOBRESCRITOS EN LA MEMORIA (7). DE ESTA FORMA, CUANDO SE INICIA REPENTINAMENTE UNA OPERACION DE OPCION DE REPRODUCCION INVERSA DURANTE LA OPERACION DE REPRODUCCION HACIA ADELANTE, SE RESERVA UNA CANTIDAD SUFICIENTE DE DATOS EN LA MEMORIA (7) PARA LA DESCODIFICAR LOS DATOS EN LA DIRECCION INVERSA. SIMILARMENTE, EL CONTROLADOR DEL SISTEMA (21) IMPIDE QUE LA MEMORIA (7) ESCRIBA SOBRE LOS DATOS PREVIAMENTE LEIDOS DURANTE LA REPRODUCCION INVERSA Y SE RESERVA UNA CANTIDAD DE DATOS SUFICIENTE PARA LA DESCODIFICACION CUANDO SE REINICIA LA REPRODUCCION HACIA ADELANTE.
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公开(公告)号：DE69635062D1
公开(公告)日：2005-09-22
申请号：DE69635062
申请日：1996-02-09
Applicant: SONY CORP
Inventor： NITTA HAJIME , OTA KIYOSHI
IPC: H04N5/765 , G11B20/10 , H03M7/00 , H04N5/781 , H04N5/783 , H04N5/85 , H04N5/92 , H04N5/937 , H04N9/804 , H04N9/877 , H04N9/87 , H04N1/417
Abstract: Data decoding apparatus decodes data reproduced from a record medium (1) and stored in a memory (7). Since decoding requires a sufficient amount of data to be stored in memory, especially when the data is, for example, predictively encoded, a system controller (21) inhibits previously read data from being overwritten in the memory (7). Thus, when a reverse reproduction operation is suddenly initiated during a forward reproduction operation, a sufficient amount of data is reserved in the memory (7) for decoding the data in the reverse direction. Similarly, the system controller (21) inhibits the memory (7) from writing over previously read data during reverse reproduction and a sufficient amount of data is reserved for decoding when forward reproduction is resumed.
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Patent Agency Ranking
公开(公告)号：DE69807555T2
公开(公告)日：2003-07-31
申请号：DE69807555
申请日：1998-03-12
Applicant: SONY CORP
Inventor： NITTA HAJIME , HASEGAWA AKIRA
IPC: H04N5/91 , G06T9/00 , G11B20/10 , G11B27/00 , G11B27/10 , H04N5/783 , H04N5/85 , H04N5/92 , H04N9/804 , H04N9/806 , H04N9/82
Abstract: An audio signal may be reproduced during high-speed reproduction of a compressed video signal. A digital signal in which a plurality of digital signal types including an audio signal are multiplexed and contained in blocks as the smallest reproduction unit of video object units (VOBU) contains a compressed video signal pack (V_PCK) which has been compression-coded by way of predictive coding in the time axis direction and an audio signal pack (A_PCK). At least a part of reference picture data of the compressed video signal in the VOBU is reproduced simultaneously with an audio signal contained in a continuous area (HS) containing the aforementioned part of the reference picture data in the aforementioned smallest reproduction unit.
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公开(公告)号：DE69522059T2
公开(公告)日：2002-03-21
申请号：DE69522059
申请日：1995-08-29
Applicant: SONY CORP
Inventor： AOKI NOBUYUKI , HIRANAKA DAISUKE , NITTA HAJIME , OTA KIYOSHI
Abstract: A data reproducing apparatus enables special reproduction, such as backward reproduction, to be run quickly when specified. The apparatus comprises demodulating means (3) for demodulating data read from a digital video disk (1) by a pickup (2), storage means (4) for temporarily storing the demodulated data, a decoder (5) for decoding data read out of the storage means into original video signals, and a control circuit (8) for controlling the storage means (4) so that an unread data area and an already-read data area in the storage means take up about half of a total memory capacity, respectively, so that data necessary for reverse reproduction or the like is left in the storage means, thus allowing the special reproduction to be run quickly.
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公开(公告)号：DE69519653T2
公开(公告)日：2001-05-17
申请号：DE69519653
申请日：1995-09-04
Applicant: SONY CORP
Inventor： NITTA HAJIME , OTA KIYOSHI
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公开(公告)号：DE69326729T2
公开(公告)日：2000-04-27
申请号：DE69326729
申请日：1993-08-09
Applicant: SONY CORP
Inventor： NITTA HAJIME , SAITO TAKEHIKO , YAMASHITA KEITARO , TAKASHIMA MASATOSHI , NAKAGAWA TOMIHIRO
IPC: G11B20/00 , G11B20/10 , G11B27/034 , G11B27/32 , G11B27/34 , H04N5/765 , H04N5/85 , H04N5/926 , H04N7/50
Abstract: In step S1, the capacity of the area (remaining quantity) of a disk in which information can be recorded is read, and the remaining quantity is displayed in step S2. After a user input the recording time of information to be recorded and the recording capacity w for the recording, an average transmission rate R1 is calculated from expression R1 = w/t - alpha in step S4. The rate alpha is the transmission rate for transmitting signals other than a video signal, such as an audio signal, attached to the video signal. Data obtained by applying a DCT treatment to the video data is quantized with a quantization width corresponding to the average transmission rate R1 and this data is intermittently recorded on the disk.
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公开(公告)号：DE69807555D1
公开(公告)日：2002-10-10
申请号：DE69807555
申请日：1998-03-12
Applicant: SONY CORP
Inventor： NITTA HAJIME , HASEGAWA AKIRA
IPC: H04N5/91 , G06T9/00 , G11B20/10 , G11B27/00 , G11B27/10 , H04N5/783 , H04N5/85 , H04N5/92 , H04N9/804 , H04N9/806 , H04N9/82
Abstract: An audio signal may be reproduced during high-speed reproduction of a compressed video signal. A digital signal in which a plurality of digital signal types including an audio signal are multiplexed and contained in blocks as the smallest reproduction unit of video object units (VOBU) contains a compressed video signal pack (V_PCK) which has been compression-coded by way of predictive coding in the time axis direction and an audio signal pack (A_PCK). At least a part of reference picture data of the compressed video signal in the VOBU is reproduced simultaneously with an audio signal contained in a continuous area (HS) containing the aforementioned part of the reference picture data in the aforementioned smallest reproduction unit.
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