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Signal processing apparatus, signal processing method and program

A signal processing device and signal technology, applied in the direction of transmission modification based on link quality, transmission system, multi-carrier system, etc., can solve problems such as error decoding processing

Inactive Publication Date: 2012-05-16
SONY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This can lead to incorrect decoding processing

Method used

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  • Signal processing apparatus, signal processing method and program
  • Signal processing apparatus, signal processing method and program
  • Signal processing apparatus, signal processing method and program

Examples

Experimental program
Comparison scheme
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no. 1 example

[0049] 1. The first embodiment (receiving device);

[0050] 2. The second embodiment (receiving device);

[0051] 3. The third embodiment (spectrum inversion detection part);

no. 4 example

[0052] 4. The fourth embodiment (receiving device);

[0053] 5. The fifth embodiment (receiving device);

[0054] 6. The sixth embodiment (error correction part);

no. 7 example

[0055] 7. The seventh embodiment (receiving device); and

[0056] 8. Eighth embodiment (personal computer).

[0057]

[0058] [receiving device]

[0059] figure 1 is a block diagram showing an example of a main configuration of a receiving device. figure 1 The receiving device 100 shown in receives a signal transmitted by a transmitting device (not shown). For example, the receiving device 100 may be a television set that receives broadcast waves of terrestrial digital broadcasting transmitted from a broadcasting station.

[0060] Such as figure 1 As shown in , the receiving device 100 is composed of an antenna 101 , a frequency conversion section 102 , a local oscillation section 103 , an A / D conversion section 104 , a demodulation section 105 and an input section 106 .

[0061] The reception device 100 receives an RF signal of a transmission signal (for example, broadcast waves of terrestrial digital broadcasting) from an appropriate transmission device via an antenna...

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Abstract

A signal processing apparatus is disclosed which includes: a detection section configured such that based on a result of the error correction of a signal generated by a single carrier system, the detection section detects the presence or absence of spectrum inversion in the signal; and a selection section configured such that if the detection section detects the spectrum inversion, the selection section selects the spectrally inverted signal as the signal subject to the error correction, and that if the detection section does not detect the spectrum inversion, then the selection selects the spectrally uninverted signal as the signal subject to the error correction.

Description

technical field [0001] The present disclosure relates to a signal processing device, a signal processing method, and a program. More specifically, the present disclosure relates to a signal processing device, a signal processing method, and a program for detecting and correcting spectral inversion in a more generalized manner than before. Background technique [0002] Two main modulation systems currently exist for terrestrial digital broadcasting: Orthogonal Frequency Division Multiplexing (OFDM) systems, which use multiple orthogonal carriers; and single-carrier systems, which use one carrier. [0003] Typical terrestrial digital broadcasting standards using the OFDM system include DVB-T (Digital Video Broadcasting-Terrestrial) and ISDB-T (Integrated Services Digital Broadcasting-Terrestrial). [0004] Terrestrial digital broadcasting standards using a single carrier system may include, for example, ATSC (Advanced Television Systems Committee), DTMB (Digital Terrestrial M...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00H04L25/02H04L27/38
CPCH04L2001/0093H04L1/0071H04L1/0019H04L1/0057H04L1/0047H04L27/38
Inventor 横川峰志池谷亮志篠原雄二
Owner SONY CORP
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