EP0833514A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Data decoding system and method, transfer device and method, and receiving device and method
Assignee: Sony Corp
•
Filing: 1997-09-24
•
Granted: —
•
Expires: 2017-09-24
Abstract
Abstract Data that is an MPEG program stream (PS) read out from a disc is supplied to a PS/TS converter via a variable rate control section. The PS/TS converter converts the PS MPEG data into a transport stream (TS) and transmits it to a presentation device via a 1394 transmission/reception section. Data received by a 1394 transmission/reception section of the presentation device is classified by a DEMUX section. An audio decoder and a video decoder decode the TS MPEG data. D/A converters convert resulting digital data into analog signals and output the analog signals. <IMAGE>
Inventors
- 👤 Naofumi c/o Intel.Prop.Dept. Yanagihara
- 👤 Mari c/o Intel.Prop.Dept. Horiguchi
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-10 01:59
CPC Classifications
H; H04; H04N; H04N21/00; H04N21/40; H04N21/43; H04N21/434; H04L; H04L12/00; H04L12/28; H04L12/40; H04L12/40052; H04L12/40058; G; G11; G11B; G11B27/00; G11B27/10; G11B27/102; G11B27/105; G11B27/19; G11B27/28; G11B27/30; G11B27/3027; H04L12/40117; H04N21/20; H04N21/25; H04N21/266; H04N21/2662; H04N21/41; H04N21/414; H04N21/4147; H04N21/426; H04N21/4341; H04N21/436; H04N21/4363; H04N21/43632; H04N21/44; H04N21/4402; H04N21/47; H04N21/485; H04N21/4856; H04N9/00; H04N9/79; H04N9/80; H04N9/804; H04N9/8042; G11B2220/00; G11B2220/20; G11B2220/25; G11B2220/2537; G11B2220/2562; H04N5/00; H04N5/04; H04N5/76; H04N5/84; H04N5/85; H04N9/82; H04N9/8205
Claims Analysis
Total Claims: 60
Claim 1
Independent Claim
75 words
A data decoding system comprising: a first device for transferring encoded data via a
digital interface; and a second device for receiving the data transferred via
the digital interface and for decoding the received data for
a given data form, wherein: the first device or the second device comprises
converting means for converting data of a first form into
data of a second form; and the second device decodes the data of the second form.
Claim 2
Dependent Claim
32 words
The data decoding system according to claim 1,
wherein the first form is a program stream of an MPEG scheme
and the second form is a transport stream of the MPEG scheme.
Claim 3
Dependent Claim
24 words
The data decoding system according to claim 1,
wherein the converting means comprises a buffer for
temporarily storing the data of the first form.
Claim 4
Dependent Claim
62 words
The data decoding system according to claim 3,
wherein the converting means further comprises separating
means for separating the data of the first form into audio
data and data other than the audio data, and wherein the
buffer is constituted of a buffer for temporarily storing the
audio data and a buffer for temporarily storing the data
other than the audio data.
Claim 5
Dependent Claim
29 words
The data decoding system according to claim 4,
wherein the converting means comprises buffers for
temporarily storing the audio data in the number of streams
of the audio data.
Claim 6
Dependent Claim
25 words
The data decoding system according to claim 5,
wherein each of the buffers for temporarily storing the audio
data has a capacity of 4 kilobytes.
Claim 7
Dependent Claim
35 words
The data decoding system according to claim 2,
wherein the converting means further comprises multiplexing
means for multiplexing the audio data and the data other than
the audio data to generate an MPEG transport stream.
Claim 8
Dependent Claim
96 words
A data decoding method in a data decoding system
having a first device for transferring encoded data via a
digital interface, and a second device for receiving the data
transferred via the digital interface and for decoding the
received data, wherein: the first device converts data of a first form into data
of a second form and then transmits the data of the second
form, or the second device receives the data of the first
form and converts it into data of a second form; and the second device decodes the data of the second form.
Claim 9
Dependent Claim
32 words
The data decoding method according to claim 8,
wherein the first form is a program stream of an MPEG scheme
and the second form is a transport stream of the MPEG scheme.
Claim 10
Dependent Claim
25 words
The data decoding method according to claim 8,
wherein the first or second device temporarily stores the
data of the first form in converting it.
Claim 11
Dependent Claim
56 words
The data decoding method according to claim 10,
wherein in converting the data of the first form, the first
or second device separates the data of the first form into
audio data and data other than the audio data, and then
stores temporarily and separately the audio data and the data
other than the audio data.
Claim 12
Dependent Claim
31 words
The data decoding method according to claim 11,
wherein in converting the data of the first form, the first
or second device stores the audio data in the number of
streams.
Claim 13
Dependent Claim
40 words
The data decoding method according to claim 9,
wherein in converting the data of the first form, the first
or second device multiplexes the audio data and the data
other than the audio data to generate an MPEG transport
stream.
Claim 14
Dependent Claim
58 words
A data decoding system comprising: a first device for reproducing data recorded on a given
recording medium and for transferring the reproduced data via
an IEEE 1394 interface; and a plurality of second devices for receiving the data
transferred via the IEEE 1394 interface and for performing
digital-to-analog conversion on the received data, to output
an analog signal.
Claim 15
Dependent Claim
60 words
A transfer device for transferring, via a digital
interface, encoded data to a decoder that decodes the encoded
data for a given data form, comprising: converting means for converting data of a first form
into data of a second form that is the given data form in the
decoder; and transferring means for transferring the data of the
second form.
Claim 16
Dependent Claim
31 words
The transfer device according to claim 15, wherein
the first form is a program stream of an MPEG scheme and the
second form is a transport stream of the MPEG scheme.
Claim 17
Dependent Claim
23 words
The transfer device according to claim 15, wherein
the converting means comprises a buffer for temporarily
storing the data of the first form.
Claim 18
Dependent Claim
61 words
The transfer device according to claim 17, wherein
the converting means further comprises separating means for
separating the data of the first form into audio data and
data other than the audio data, and wherein the buffer is
constituted of a buffer for temporarily storing the audio
data and a buffer for temporarily storing the data other than
the audio data.
Claim 19
Dependent Claim
28 words
The transfer device according to claim 18, wherein
the converting means comprises buffers for temporarily
storing the audio data in the number of streams of the audio
data.
Claim 20
Dependent Claim
24 words
The transfer device according to claim 19, wherein
each of the buffers for temporarily storing the audio data
has a capacity of 4 kilobytes.
Claim 21
Dependent Claim
34 words
The transfer device according to claim 16, wherein
the converting means further comprises multiplexing means for
multiplexing the audio data and the data other than the audio
data to generate an MPEG transport stream.
Claim 22
Dependent Claim
19 words
The transfer device according to claim 15, wherein
the digital interface is configured according to an IEEE 1394
format.
Claim 23
Dependent Claim
22 words
The transfer device according to claim 15, wherein
the data of the first form is data reproduced from a digital
versatile disc.
Claim 24
Dependent Claim
57 words
A transfer method for transferring, via a digital
interface, encoded data to a decoder that decodes the encoded
data for a given data form, comprising the steps of: converting data of a first form into data of a second
form that is the given data form in the decoder; and transferring the data of the second form.
Claim 25
Dependent Claim
31 words
The transfer method according to claim 24, wherein
the first form is a program stream of an MPEG scheme and the
second form is a transport stream of the MPEG scheme.
Claim 26
Dependent Claim
20 words
The transfer method according to claim 24, wherein
the converting step comprises temporarily storing the data of
the first form.
Claim 27
Dependent Claim
45 words
The transfer method according to claim 26, wherein
the converting step comprises separating the data of the
first form into audio data and data other than the audio
data, and storing temporarily and separately the audio data
and the data other than the audio data.
Claim 28
Dependent Claim
21 words
The transfer method according to claim 27, wherein
the converting step comprises storing the audio data in the
number of streams.
Claim 29
Dependent Claim
30 words
The transfer method according to claim 25, wherein
the converting step comprises multiplexing the audio data and
the data other than the audio data to generate an MPEG
transport stream.
Claim 30
Dependent Claim
19 words
The transfer method according to claim 24, wherein
the digital interface is configured according to an IEEE 1394
format.
Claim 31
Dependent Claim
22 words
The transfer method according to claim 24, wherein
the data of the first form is data reproduced from a digital
versatile disc.
Claim 32
Dependent Claim
74 words
A receiving device in a data decoding system for
receiving encoded data transferred via a digital interface
and for decoding the received data for a given data form, the
receiving device comprising: receiving means for receiving data of a first form; converting means for converting the data of the first
form into data of a second form that is the given data form;
and decoding means for decoding the data of the second form.
Claim 33
Dependent Claim
31 words
The receiving device according to claim 32, wherein
the first form is a program stream of an MPEG scheme and the
second form is a transport stream of the MPEG scheme.
Claim 34
Dependent Claim
19 words
The receiving device according to claim 32, wherein
the digital interface is configured according to an IEEE 1394
format.
Claim 35
Dependent Claim
23 words
The receiving device according to claim 32, wherein
the converting means comprises a buffer for temporarily
storing the data of the first form.
Claim 36
Dependent Claim
61 words
The receiving device according to claim 35, wherein
the converting means further comprises separating means for
separating the data of the first form into audio data and
data other than the audio data, and wherein the buffer is
constituted of a buffer for temporarily storing the audio
data and a buffer for temporarily storing the data other than
the audio data.
Claim 37
Dependent Claim
28 words
The receiving device according to claim 36, wherein
the converting means comprises buffers for temporarily
storing the audio data in the number of streams of the audio
data.
Claim 38
Dependent Claim
24 words
The receiving device according to claim 37, wherein
each of the buffers for temporarily storing the audio data
has a capacity of 4 kilobytes.
Claim 39
Dependent Claim
34 words
The receiving device according to claim 33, wherein
the converting means further comprises multiplexing means for
multiplexing the audio data and the data other than the audio
data to generate an MPEG transport stream.
Claim 40
Dependent Claim
68 words
A receiving method in a data decoding system for
receiving encoded data transferred via a digital interface
and for decoding the received data for a given data form, the
receiving method comprising the steps of: receiving data of a first form; converting the data of the first form into data of a
second form that is the given data form; and decoding the data of the second form.
Claim 41
Dependent Claim
31 words
The receiving method according to claim 40, wherein
the first form is a program stream of an MPEG scheme and the
second form is a transport stream of the MPEG scheme.
Claim 42
Dependent Claim
20 words
The receiving method according to claim 40, wherein
the converting step comprises temporarily storing the data of
the first form.
Claim 43
Dependent Claim
45 words
The receiving method according to claim 42, wherein
the converting step comprises separating the data of the
first form into audio data and data other than the audio
data, and storing temporarily and separately the audio data
and the data other than the audio data.
Claim 44
Dependent Claim
21 words
The receiving method according to claim 43, wherein
the converting step comprises storing the audio data in the
number of streams.
Claim 45
Dependent Claim
30 words
The receiving method according to claim 41, wherein
the converting step comprises multiplexing the audio data and
the data other than the audio data to generate an MPEG
transport stream.
Claim 46
Dependent Claim
19 words
The receiving method according to claim 40, wherein
the digital interface is configured according to an IEEE 1394
format.
Claim 47
Dependent Claim
22 words
The receiving method according to claim 40, wherein
the data of the first form is data reproduced from a digital
versatile disc.
Claim 48
Dependent Claim
90 words
A receiving device in a data decoding system for
receiving encoded data transferred via a digital interface
and for decoding the received data for a given data form, the
receiving device comprising: first decoding means for decoding data of a first form; second decoding means for decoding data of a second
form; and supplying means for receiving the data of the first or
second form and for supplying the received data to the first
decoding means or the second decoding means in accordance
with a form of the received data.
Claim 49
Dependent Claim
31 words
The receiving device according to claim 48, wherein
the first form is a program stream of an MPEG scheme and the
second form is a transport stream of the MPEG scheme.
Claim 50
Dependent Claim
95 words
A receiving method in a data decoding system for
receiving encoded data transferred via a digital interface
and for decoding the received data for a given data form, the
receiving method comprising the steps of: receiving data of a first form or a second form and for
supplying the received data to a first decoding section or a
second decoding section in accordance with a form of the
received data; decoding the data of the first form in the first
decoding section; and decoding the data of the second form in the second
decoding section.
Claim 51
Dependent Claim
176 words
A recording medium playback device for
transferring, via a digital interface, encoded data that is
read out from a recording medium to a decoder that decodes
the encoded data for a given data form, comprising: a variable rate control section for receiving a
reproduction signal from the recording medium and for
outputting it with given timing; a maximum rate control section for receiving a
reproduction signal from the recording medium and for
checking an output rate of the maximum rate control section
so that the output rate does not exceed a transfer rate of
the digital interface; a switch for selectively supplying reproduction data to
the variable rate control section or the maximum rate control
section in accordance with a playback state of the recording
medium; converting means for converting data of a first form
that is supplied from the variable rate control section or
the maximum rate control section into data of a second form
that is the given data form in the decoder; and transferring means for transferring the data of the
second form.
Claim 52
Dependent Claim
53 words
The recording medium playback device according to
claim 51, wherein the switch is controlled so as to supply
the reproduction data to the variable rate control section
when a mode for normally playing back the recording medium is
selected, and to the maximum rate control section when a
trick play mode is selected.
Claim 53
Dependent Claim
33 words
The recording medium playback device according to
claim 51, wherein the first form is a program stream of an
MPEG scheme and the second form is a transport stream of the
MPEG scheme.
Claim 54
Dependent Claim
25 words
The recording medium playback device according to
claim 51, wherein the converting means comprises a buffer for
temporarily storing the data of the first form.
Claim 55
Dependent Claim
63 words
The recording medium playback device according to
claim 54, wherein the converting means further comprises
separating means for separating the data of the first form
into audio data and data other than the audio data, and
wherein the buffer is constituted of a buffer for temporarily
storing the audio data and a buffer for temporarily storing
the data other than the audio data.
Claim 56
Dependent Claim
30 words
The recording medium playback device according to
claim 55, wherein the converting means comprises buffers for
temporarily storing the audio data in the number of streams
of the audio data.
Claim 57
Dependent Claim
26 words
The recording medium playback device according to
claim 56, wherein each of the buffers for temporarily storing
the audio data has a capacity of 4 kilobytes.
Claim 58
Dependent Claim
36 words
The recording medium playback device according to
claim 53, wherein the converting means further comprises
multiplexing means for multiplexing the audio data and the
data other than the audio data to generate an MPEG transport
stream.
Claim 59
Dependent Claim
21 words
The recording medium playback device according to
claim 51, wherein the digital interface is configured
according to an IEEE 1394 format.
Claim 60
Dependent Claim
24 words
The recording medium playback device according to
claim 51, wherein the data of the first form is data
reproduced from a digital versatile disc.
References Cited (Backward Citations)
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