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AssigneeLG Electronics Inc.
InventorsIn Hwan Choi, Kyung Won Kang, Kook Yeon Kwak
Estimating the term…
A DTV transmitter includes a pre-processor pre-processing enhanced data, a data formatter generating enhanced data packets including the pre-processed enhanced data, and a multiplexer multiplexing the enhanced data packets with main data packets. The transmitter further includes an RS encoder RS-coding the multiplexed packets by adding systematic RS parity data to each main data packet and by adding non-systematic RS parity place holders to each enhanced data packet, and a data interleaver interleaving the RS-coded packets. The non-systematic RS parity place holders are placed after the enhanced data within each interleaved enhanced data packet, and a sequence of known data place holders is periodically included in the interleaved enhanced data packets.
A digital television (DTV) transmitter for processing broadcast data, the DTV transmitter comprising:
A method of processing broadcast data in a digital television (DTV) transmitter, the method comprising:
Dependencies are inferred from the claim text.
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Error detection or forward error correction by signal space coding, i.e. adding redundancy in the signal constellation, e.g. Trellis Coded…: with…
Unequal or adaptive error protection, e.g. by providing a different level of protection according to significance of source information or by…:…
Intended application, e.g. transmission or communication standard: aTSC VBS systems
Processing of content or additional data; Elementary server operations; Server middleware: processing of additional data, e.g. scrambling of…
About 7 months of term left · ends 13 May 2027 (estimated)
1. Field of the Invention
The present invention relates to a digital telecommunications system, and more particularly, to a DTV transmitter and a method of coding main and enhanced data in a DTV transmitter.
2. Discussion of the Related Art
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiments of the invention and together with the description serve to explain the principle of the invention. In the drawings:
FIG. 1 illustrates a block diagram of a digital broadcast (or television or DTV) transmitter according to the present invention;
FIG. 2A illustrates a block diagram of a symbol processor according to an embodiment of the present invention;
Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like parts.
In addition, although the terms used in the present invention are selected from generally known and used terms, some of the terms mentioned in the description of the present invention have been selected by the applicant at his or her discretion, the detailed meanings of which are described in relevant parts of the description herein. Furthermore, it is required that the present invention is understood, not simply by the actual terms used but by the meaning of each term lying within.
In the present invention, the enhanced data may either consist of data including information such as program execution files, stock information, and so on, or consist of video/audio data. Additionally, the known data refer to data already known based upon a pre-determined agreement between the transmitter and the receiver. Furthermore, the main data consist of data that can be received from the conventional receiver, wherein the main data include video/audio data.