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Modulation signal processing device and modulation signal processing method

A modulation signal and signal processing technology, applied in image communication, TV, color TV parts, etc., can solve problems such as small difference in settings, insufficient overmodulation signal, unstable sound output, etc.

Inactive Publication Date: 2014-12-17
KK TOSHIBA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, when the gain is adjusted according to the reception of the audio signal, the gain is set with a small difference every time.
For example, although the degree of overmodulation of the overmodulated signal is constant, it causes the gain to be set with a small difference each time, so that the sound output sometimes becomes unstable.
As mentioned above, it is not sufficient to deal with overmodulated signals

Method used

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  • Modulation signal processing device and modulation signal processing method
  • Modulation signal processing device and modulation signal processing method
  • Modulation signal processing device and modulation signal processing method

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no. 1 approach

[0031] In some countries or regions, a modulated sound signal (first modulated sound signal) modulated with a prescribed modulation degree (first modulation degree) and an overmodulated one modulated with a modulation degree different from the prescribed modulation degree (second modulation degree) are sometimes broadcast sound signal (second modulated sound signal).

[0032] The control unit (setting unit) 110 of the broadcast receiving device can be set to one modulated sound signal processing mode (one signal processing mode) selected from a plurality of modulated sound signal processing modes (multiple signal processing modes) for each channel, And the modulated audio signal processing mode (signal processing mode) set for each channel is stored. For example, the memory 111 stores a plurality of modulated sound signal processing modes, and further stores a modulated sound signal processing mode set for each channel.

[0033] Thus, the audio processing unit 107 (modulated ...

no. 2 approach

[0065] Although it has been described in the first embodiment that when a channel is selected, the first mode setting of the first modulated audio signal processing mode (Mono1) or the second modulated audio signal processing mode (Mono2) is set for the selected channel. In the second embodiment, for Figure 4 In the signal processing mode setting screen shown, the second mode setting of the first modulated audio signal processing mode (Mono1) or the second modulated audio signal processing mode (Mono2) is set for each channel.

[0066] For example, the user can instruct to display the signal processing mode setting screen through the menu key of the remote controller 114 . The control unit (setting unit) 110 of the broadcast receiving apparatus controls the display of the signal processing mode setting screen according to the display instruction of the signal processing mode setting screen. Therefore, the image display unit (output unit) 106 displays as Figure 4 The signal...

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Abstract

Embodiments of the invention relate to a modulation signal processing device and a modulation signal processing method for processing a modulation signal so as to excellently copy with an over-modulation signal. The modulation signal processing device comprises a setting component, a memory, a channel selector and a modulation signal processor. The setting component is used to set a signal processing mode of each channel selected from various signal processing modes. The memory is used to store the set signal processing mode of each channel. The channel selector is used to select the channel. The modulation signal processor is used to process the modulation signal of the selected channel based on the set signal processing mode of the channel selected by the channel selector.

Description

[0001] Cross References to Related Applications [0002] This application is based upon and claims the benefit of priority from Japanese Patent Application No. 2010-150456 filed on June 30, 2010. This application includes the entire content of the above-mentioned application by referring to the above-mentioned patent application. technical field [0003] Embodiments of the present invention relate to a modulation signal processing device and a modulation signal processing method for processing a modulation signal. Background technique [0004] Audio signals such as television broadcasts from each broadcasting station are modulated with a predetermined modulation factor. Therefore, the television broadcast receiving apparatus can appropriately process and output the predetermined modulated audio signal from each broadcasting station according to the audio processing corresponding to the predetermined degree of modulation. [0005] However, in some countries or regions, over...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/60
Inventor 西村勇人
Owner KK TOSHIBA