Receiving apparatus and method therefor

Patent metadata

Field	Value
Publication number	US-10594437-B2
Application number	US-201615756179-A
Country	US
Kind code	B2
Filing date	Sep 23, 2016
Priority date	Oct 8, 2015
Publication date	Mar 17, 2020
Grant date	Mar 17, 2020

Abstract

The present disclosure relates to a receiving apparatus and a method therefor which are capable of decreasing a processing load and efficiently improving reproduction quality. A packet accumulating unit stores packets and packet type, and another packet information. A statistics information accumulating unit accumulates statistics information (e.g., an error ratio, performance (processing condition) of the receiving apparatus, a condition of a stream, and a condition of a buffer). A packet-correcting-method selecting unit selects a packet correcting method from a packet correction table generated in accordance with the packet information and packet identification/statistics information from the statistics information accumulating unit, and supplies a packet to be corrected to a packet correcting unit in a case where the packet in process is determined to be a target of correction. For example, the present disclosure can be applied to a communication system that transmits and receives data.

First claim

The invention claimed is:

1. A receiving apparatus, comprising:
at least one processor configured to:
extract packet information from a packet to be corrected in a stream, wherein the stream includes video data, audio data, and control information;
detect a packet error in the stream;
select a correcting method for the detected packet error based on the extracted packet information and a condition of a reception process, wherein the correcting method indicates one of a type or a priority of the packet to be corrected; and
correct the detected packet error based on the selected correcting method.

2. The receiving apparatus according to claim 1 , wherein the at least one processor is further configured to:
accumulate the extracted packet information;
estimate a bit pattern from the accumulated packet information; and
correct the detected packet error by syntax correction.

3. The receiving apparatus according to claim 1 , wherein the at least one processor is further configured to:
generate a correction table assigned with priority for correction based on the extracted packet information; and
select the correcting method for the detected packet error based on at least one of the generated correction table or the condition of the reception process.

4. The receiving apparatus according to claim 1 , wherein
the packet information includes packet type information.

5. The receiving apparatus according to claim 1 , wherein
the correcting method includes at least one of a target of correction, a range of correction, or an accuracy of correction.

6. A receiving method, comprising:
in a receiving apparatus:
extracting, by at least one processor of the receiving apparatus, packet information from a packet to be corrected in a stream, wherein the stream includes video data, audio data, and control information;
detecting, by the at least one processor, a packet error in the stream;
selecting, by the at least one processor, a correcting method for the detected packet error based on the extracted packet information and a condition of receiving processing, wherein the correcting method indicates one of a type or a priority of the packet to be corrected; and
correcting, by the at least one processor, the detected packet error based on the selected correcting method.

Assignees

• Sony Corp

Inventors

• Ishigaya Kazuhiro
• Negishi Shinji
• Ishii Michito
• Watanabe Takehito
• Chaki Yasuyuki
• OOISHI Noriaki

Classifications

• H04N21/4344

  Remultiplexing of multiplex streams, e.g. by modifying time stamps or remapping the packet identifiers · CPC title

• H04L2001/0097

  Relays · CPC title

• H04N21/4343

  Extraction or processing of packetized elementary streams [PES] · CPC title

• H04L1/1867

  Arrangements specially adapted for the transmitter end · CPC title

• H04N21/4425

  Monitoring of client processing errors or hardware failure · CPC title