Digital broadcasting receiver and digital broadcasting system
AssigneeSanyo Electric Co., Ltd.
InventorYuji Yamamoto
Life of this patent
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Abstract
On the side of a transmitter in a digital broadcasting system, a multiplexed picture is produced by multiplexing a plurality of pictures using a frame memory device. A video encoder encodes the multiplexed picture so as to realize a prescribed correspondence between a field type (even, odd) and a displaying order. Thus, a plurality of encoded pictures having the GOP structure are produced. The encoded pictures are transmitted to a receiver in the digital broadcasting system by using a one-channel transmission path. On the receiver side, decoding is carried out on a GOP basis and formatting is carried out according to the displaying order.
Claims10
A digital broadcasting system, comprising:
- a picture producing circuit for producing a plurality of multiplexed pictures, each formed of a plurality of original pictures, and encoding said plurality of multiplexed pictures to produce a plurality of encoded pictures forming a GOP structure based on an MPEG method, said encoded picture based on the MPEG method having reference data added, said reference data indicating a displaying order regarding whether the encoded picture corresponds to an odd field or an even field;
- a transmitting circuit for transmitting an output of said picture producing circuit to a one-channel transmission path;
- a receiving circuit for receiving an output of said transmitting circuit through said one-channel transmission path;
- a decoder for decoding said plurality of encoded pictures received in said receiving circuit to reproduce said plurality of multiplexed pictures and sequentially outputting the pictures according to said displaying order;
- and
- a formatting circuit for formatting said reproduced multiplexed pictures output from said decoder to said odd field or said even field based on said displaying order indicated by said reference data added to said encoded picture.
A digital broadcasting receiver, comprising:
- a receiving circuit for receiving through a one-channel transmission path a plurality of encoded pictures forming a GOP structure based on a MPEG method, which are produced by encoding a plurality of multiplexed pictures each including a plurality of original pictures, said encoded picture based on the MPEG method having reference data added, said reference data indicating a displaying order regarding whether the encoded picture corresponds to an odd field or an even field;
- a decoder for decoding said received plurality of encoded pictures to reproduce said plurality of multiplexed pictures and sequentially outputting the pictures according to said displaying order;
- and
- a formatting circuit for formatting said reproduced multiplexed pictures output from said decoder to said odd field or said even field based on said displaying order indicated by said reference data added to said encoded picture.
Dependencies are inferred from the claim text.