Motion video signal processing for recording or reproducing – Local trick play processing – With randomly accessible medium
Reexamination Certificate
1997-09-18
2001-05-15
Garber, Wendy R. (Department: 2615)
Motion video signal processing for recording or reproducing
Local trick play processing
With randomly accessible medium
C348S552000, C725S141000
Reexamination Certificate
active
06233393
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention relates to data communication between a plurality of audio/video (AV) devices and, more particularly, to a system having a digital versatile (video) disc (DVD) device and another AV device wherein data is transmitted and/or received therebetween in accordance with two transmission techniques.
A digital versatile (video) disc (DVD) player may reproduce data recorded on a digital video disc (DVD). More specifically, the DVD player may regenerate or reproduce data from a DVD in a driver section, decode the reproduced data in a decoder section, and provide signals corresponding thereto for enabling a picture to be displayed. The data recorded on a DVD may have been compressed according to a predetermined standard, such as that of a Moving Picture Experts Group (MPEG) standard. Further, the MPEG data recorded on a DVD may be a program data stream which represents a set of programs having video information, audio information, and auxiliary data.
FIG. 14
illustrates a DVD player
1
and a DVD
101
. As shown therein, the DVD
101
includes so-called navigation data and so-called presentation data, and the DVD player
1
includes a navigation manager
11
and a presentation engine
12
. The presentation data may include video data, audio data, and sub-picture data which corresponds to such video and audio data, and the navigation data may include data pertaining to or utilized in the reproduction of the presentation data such as data which specifies the order of reproduction and/or behavior during the regeneration.
In the DVD player
1
, the navigation data is read from the DVD
101
and supplied to the navigation manager
11
. The navigation manager
11
generates a control signal in accordance with such received navigation data and supplies the same to the presentation engine
12
. Additionally, the presentation data is read from the DVD
101
and supplied to the presentation engine
12
. The presentation engine
12
regenerates or reproduces the received presentation data in accordance with the control signal from the navigation manager and outputs the same as a display signal.
In addition to the navigation data, the navigation manager
11
may also receive a command signal corresponding to a user operation from an external device (not shown), and may perform processing in accordance with such command signal. As an example, consider the situation wherein a user desires to change the language of reproduced speech from Japanese to English. In such situation, the user may appropriately operate a speech selection key (not shown), whereupon a command signal corresponding to the desired speech change is supplied to the navigation manager
11
. In response thereto, the navigation manager
11
may read a stream number corresponding to a sub-ID of English speech from a table which indicates a relationship between stream number and sub-ID in the navigation data, and may output this information to the presentation engine
12
. In response thereto, the presentation engine
12
changes the language from Japanese to English and outputs the speech in English.
FIG. 15
illustrates the navigation manager
11
. As shown therein, the navigation manager
11
includes a general controller section
21
, an entry searching section
22
, a navigation controller section
23
, and a user interface controller section
24
. As also shown in
FIG. 15
, the navigation data includes general control data, entry search data, us interface control data, and navigation control data.
The general control data read from the disc
101
is supplied to the general controller section
21
. Such general control data may include general information pertaining to a stream of data (such as, the type of broadcast system (NTSC, PAL), the type of compression mode, and so forth) and parental information. The general controller section
21
may set a decoder, or a parameter(s) pertaining thereto, in the presentation engine
12
in accordance with the received general control data. For example, the general controller section
21
may determine the compression of the speech data (such as one of MPEG-Audio, Dolby AC-3, and Liner PCM) to be regenerated or reproduced from the general control data.
The entry search data read from the disc
101
is supplied to the entry search section
22
. Such entry search data may include so-called program chain information (PGCI) which may indicate a data regeneration sequence(s) and an address table which indicates the position(s) whereat the presentation data is recorded in the disc
101
. The entry search section
22
may select the respective PGCI based on the parental information supplied from the general controller section
21
and an address corresponding to the presentation data.
The user interface control data read from the disc
101
is supplied to the user interface controller section
24
. Such user interface control data may include data for prohibiting an operation or for directing an operation if permitted by a user depending on the regeneration position. As an example, the user interface controller section
24
may supply a signal corresponding to an operation to an appropriate circuit (not shown) if such operation is permitted by a user.
The navigation control data, which may be PGCI, is supplied to the navigation controller section
23
. The navigation controller section
23
may extract information, such as that pertaining to the order and setting of the regeneration, from the received data and may supply such information to the presentation engine
12
.
FIG. 16
illustrates the presentation engine
12
. As shown therein, such presentation engine includes a demultiplexer (demux) section
31
, an audio decoder
32
, a video decoder
33
, a sub-picture (SP) decoder
34
, a highlight decoder
35
, and a superimposition circuit
36
.
The demux section
31
receives presentation data from the disc
101
and classifies or determines the type of such data as one of audio pack, video pack, and sub-picture pack in accordance with the stream ID written in the packet header of the presentation data. Based upon the type of data, the demux section
31
supplies output data to the appropriate one of the audio decoder
32
, the video decoder
33
, and the sub-picture decoder
34
so as to be decoded thereat. A decoded signal from the audio decoder
32
is supplied to a digital-to-analog (D/A) converter
41
, whereupon such signal is converted into an analog speech or audio signal and outputted therefrom. Decoded signals from the video decoder
33
and the sub-picture decoder
34
may be supplied to the superimposition circuit
36
.
The highlight decoder
35
may provide information pertaining to a position to be highlighted and a color to be used therewith in accordance with highlight information supplied from the navigation manager
11
. Decoded highlighted picture information from the highlight decoder
35
may be supplied to the superimposition circuit
36
.
The superimposition circuit
36
may receive information representative of a video picture from the video decoder
33
, a sub-picture or caption picture from the sub-picture decoder
34
, and a highlight picture from the highlight decoder
35
, and may superimpose the received information. A superimposed picture signal from the superimposition circuit
36
may be supplied to a digital-to-analog (D/A) converter
42
, whereupon such signal is converted into an analog picture signal and outputted therefrom.
Therefore, the navigation manager
11
processes the navigation data and the presentation engine
12
processes the presentation data so as to regenerate or reproduce data recorded on a DVD
101
. Further, in processing the presentation data, the presentation engine
12
may utilize information (such as setting information) from the navigation manager
11
.
The assignee of the present invention has provided a system in which data read from a DVD may be transmitted to a plurality of digital televisions through a digital interface and the data may be regenerated in each digital television. Su
Horiguchi Mari
Yanagihara Naofumi
Boccio Vincent F.
Frommer William S.
Frommer Lawrence & Haug LLP.
Garber Wendy R.
Smid Dennis M.
LandOfFree
Apparatus for transmitting data in isochronous and... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus for transmitting data in isochronous and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for transmitting data in isochronous and... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2491472