Transmission stream generating device for generating transmission stream which additional data is stuffed in a payload area of a packet, digital broadcast transmitting/receiving device for transmitting/receiving the transmission stream, and methods thereof
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H04J-003/16
H04N-021/2662
H04N-007/26
H04L-001/00
H04N-021/2383
H04B-001/16
H03M-013/23
H04N-021/438
출원번호
US-0617945
(2009-11-13)
등록번호
US-8824503
(2014-09-02)
발명자
/ 주소
Yu, Jung-pil
Jeong, Hae-joo
Park, Chan-sub
Ji, Kum-ran
출원인 / 주소
Samsung Electronics Co., Ltd.
대리인 / 주소
Sughrue Mion, PLLC
인용정보
피인용 횟수 :
0인용 특허 :
6
초록▼
A transmission stream (TS) generating apparatus includes an adaptor which receives general data and generates a stream having a plurality of packets, and which provides adaptive field in some of the plurality of packets, and an inserter which inserts additional data into all the payload areas of som
A transmission stream (TS) generating apparatus includes an adaptor which receives general data and generates a stream having a plurality of packets, and which provides adaptive field in some of the plurality of packets, and an inserter which inserts additional data into all the payload areas of some of the plurality of packets that are not provided with the adaptive fields. Because additional data is transmitted, without requiring adaptive field header in certain packet, a data transmission rate is increased.
대표청구항▼
1. A digital broadcast receiving apparatus, comprising: a demodulator to receive and demodulate a stream transmitted from a digital broadcast transmitting apparatus;an equalizer to equalize the demodulated stream; anda data processing unit to decode the equalized stream,wherein in the digital broadc
1. A digital broadcast receiving apparatus, comprising: a demodulator to receive and demodulate a stream transmitted from a digital broadcast transmitting apparatus;an equalizer to equalize the demodulated stream; anda data processing unit to decode the equalized stream,wherein in the digital broadcast transmitting apparatus, the stream is constituted to include supplementary data generated by compressing data in a compression standard which is different from a compression standard applied to normal data,wherein the supplementary data is first Reed-Solomon (RS) encoded, interleaved and processed so that an area for inserting a parity is provided, differently from the normal data to be robust against errors, and the stream is second RS encoded, interleaved and trellis encoded after the supplementary data is inserted to the stream comprising the normal data in the digital broadcast transmitting apparatus,wherein the data processing unit trellis decodes the supplementary data, deinterleaves the trellis decoded supplementary data without deinterleaving the normal data, and convolutional decodes the deinterleaved supplementary data, andwherein the data processing unit further interleaves the convolutional-decoded supplementary data and re-performs the trellis decoding, the deinterleaving, and the convolutional decoding in response to a soft decision output of the convolutional decoding. 2. The digital broadcast receiving apparatus according to claim 1, wherein the data processing unit comprises: a deinterleaver to deinterleave the decoded supplementary data. 3. The digital broadcast receiving apparatus according to claim 1, wherein the data processing unit also derandomizes the convolutional decoded supplementary data. 4. A stream processing method for a digital broadcast receiving apparatus, the method comprising: receiving and demodulating a stream transmitted from a digital broadcast transmitting apparatus;equalizing the demodulated stream; andprocessing data by decoding the equalized stream,wherein in the digital broadcast transmitting apparatus, the stream is constituted to include supplementary data generated by compressing data in a compression standard which is different from a compression standard applied to normal data, wherein the supplementary data is first Reed-Solomon (RS) encoded, interleaved and processed so that an area for inserting a parity is provided, differently from the normal data to be robust against errors, and the stream is second RS encoded, interleaved and trellis encoded after the supplementary data is inserted to the stream comprising the normal data in the digital broadcast transmitting apparatus,wherein the processing the data comprises trellis decoding the supplementary data, deinterleaving the trellis decoded supplementary data without deinterleaving the normal data, and convolutional decoding the deinterleaved supplementary data, andwherein the processing the data further comprises interleaving the convolutional-decoded supplementary data and re-performing the trellis decoding, the deinterleaving, and the convolutional decoding in response to a soft decision output of the convolutional decoding. 5. The stream processing method according to claim 4, wherein the processing of the data comprises: decoding the supplementary data; anddeinterleaving the decoded supplementary data.
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이 특허에 인용된 특허 (6)
Kang, Kyung Won; Choi, In Hwan, Digital E8-VSB reception system and E8-VSB data demultiplexing method.
Naimpally Saiprasad V. (Langhorne PA) Egawa Ren (Princeton NJ), Method and apparatus for sending private data instead of stuffing bits in an MPEG bit stream.
Hinedi Sami M. ; Griep Karl R. ; Million Samson, Punctured serial concatenated convolutional coding system and method for low-earth-orbit satellite data communication.
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