JPH0879652A - Satellite broadcast receiver - Google Patents

Abstract

PURPOSE: To provide a satellite broadcast receiver receiving a signal at appropriate sound volume when a channel is changed even in multisatellite reception. CONSTITUTION: An operation signal detection circuit 11 detects an operation signal indicating the selection of a reception channel by a user and a band pass filter, and up/down of sound volume. A control signal output circuit 12 generates a sound output control signal corresponding to the inputted operation signal. A sound output control circuit 13 sets the band pass filter and sound volume based on the inputted sound output control signal and processes an input sound signal. The sound output control circuit 13 stores control data of the generated band pass filter and sound volume by individual satellites and channels in a non-volatile memory 14. Control data of the corresponding band pass filter and sound volume are read from the non-volatile memory 14 whenever the channel is selected at the time of changing the channel or re-supplying power and data are automatically set.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a satellite broadcast receiver, and more particularly to setting an appropriate volume for each receiving channel.

[0002]

2. Description of the Related Art FIG. 2 is a block diagram showing an example of an audio output circuit in a conventional satellite broadcast receiver. In FIG. 2, reference numeral 1 is an operation signal detection circuit for detecting an operation signal by operating a key or a remote controller provided in the unit, and 2 is based on an operation signal (instruction of volume up or down) from the operation signal detection circuit 1. A control signal output circuit for outputting a corresponding volume control signal, 3 is a volume control circuit for controlling the volume of an input audio signal based on the volume control signal from the control signal output circuit 2 and outputting audio, 4 is a control signal output circuit 2 is a non-volatile memory that stores the volume control data output from the device 2.

The operation will be described. First, the operation signal detection circuit 1 detects an operation signal for instructing volume up or down by a user's operation, and the control signal output circuit 2 generates a volume control signal based on the input operation signal and outputs the volume control signal. Is output to the volume control circuit 3. The volume control circuit 3 controls the volume of the input audio signal based on the input volume control signal and outputs the audio. The volume control data output from the control signal output circuit 2 is stored in the non-volatile memory 4.

Even when the satellite receiver is turned off,
The volume control data at the final setting is stored in the non-volatile memory 4. Therefore, when the power is turned on again, the control signal output circuit 2 reads the volume control data stored in the non-volatile memory 4 to control the volume control circuit 3,
Receiving at the same volume as the final setting.

[0005]

However, in the audio output circuit of the conventional satellite broadcast receiver described above, only the volume control data at the final setting is stored.
When the sound modulation degree is different for each satellite and channel, the volume control data at the time of the final setting is not always correct when the reception channel is changed, and it is necessary to perform the volume adjustment operation again to receive at the proper volume. Had the problem of becoming.

The present invention was devised in view of the above circumstances, and an object thereof is to provide a satellite broadcast receiver capable of receiving at a proper volume when changing channels even in multi-satellite reception. To do.

[0007]

A satellite broadcast receiver according to the present invention includes an operation signal detection circuit for detecting an operation signal for instructing selection of a receiving channel and band filter and volume up or down by user operation. A control signal output circuit that generates an audio output control signal that includes a corresponding bandpass filter and volume based on the input operation signal, and sets the bandpass filter and volume based on the input audio output control signal to process the input audio signal And a non-volatile memory for storing the band-pass filter and volume control data generated by the control signal output circuit for each satellite and channel.

[0008]

The band filter and volume control data selected for each receiving channel are stored in advance, and even when multi-satellite broadcasting is received when the voice modulation degree is different for each satellite and channel, the control data is read to read the channel. It is possible to receive at an appropriate volume for each tuning.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A satellite broadcast receiver according to an embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing the configuration of an audio output circuit in the satellite broadcast receiver of the embodiment. In FIG. 1, 11 is an operation signal detection circuit for detecting an operation signal by operating a key or a remote controller provided in the unit, 12 is an operation signal from the operation signal detection circuit 11 (reception channel,
Band filter selection, volume up or down instruction)
A control signal output circuit for outputting a corresponding audio output control signal on the basis of the above, and 13 sets a band filter and a volume based on the audio output control signal from the control signal output circuit 12, and controls the input audio signal. An audio output control circuit 14 for outputting audio by means of a non-volatile memory for storing the band-pass filter and volume control data output from the control signal output circuit 12 for each satellite and channel.

The operation will be described. The operation signal detection circuit 11 detects an operation signal for instructing selection of a receiving channel and a band filter and volume up or down by a user's operation, and a control signal output circuit 12 outputs a corresponding band filter and a corresponding band filter based on the input operation signal. The audio output control signal including the volume is generated and the audio output control signal is output to the audio output control circuit 13. The voice output control circuit 13 sets the band filter and the volume based on the input voice output control signal, and controls the input voice signal to output voice under the conditions. In addition, the control signal output circuit 1
The band-pass filter and volume control data output from 2 are stored in the non-volatile memory 14 for each satellite and channel. The storage of the band-pass filter and the volume control data in the non-volatile memory 14 is performed every operation from the operation signal detection circuit 11, that is, each time the reception channel is switched. Therefore, the nonvolatile memory 14 stores a plurality of band-pass filters and volume control data for each satellite and channel.

When the satellite or channel has a different audio modulation degree and the satellite or channel is changed from the current reception channel, the control signal output circuit 12 reads out the band-pass filter and volume control data corresponding to the changed channel. Since it is set in the audio output control circuit 13, it is possible to receive at the optimum volume for each channel selection. Even when the satellite broadcasting receiver is turned off and then turned on again, it is possible to receive the optimum volume for each channel selection.

[0013]

EFFECTS OF THE INVENTION The bandpass filter selected for each receiving channel and the control data of the volume are stored in the non-volatile memory, and the control signal output circuit is also used in the reception of multi-satellite broadcasting when the audio modulation degree is different for each satellite and channel. By reading the control data from the non-volatile memory and setting it in the audio output control circuit, reception can be performed at an appropriate volume for each channel selection.

[Brief description of drawings]

FIG. 1 is a block diagram of an audio output circuit in a satellite broadcast receiver according to an embodiment of the present invention.

FIG. 2 is a block diagram of an audio output circuit in a conventional satellite broadcast receiver.

[Explanation of symbols]

 11 ... Operation signal detection circuit 12 ... Control signal output circuit 13 ... Voice output control circuit 14 ... Non-volatile memory

Claims (1)

[Claims] 1. A reception channel operated by a user,
An operation signal detection circuit for detecting an operation signal for selecting a band filter and for increasing or decreasing the volume, and a control signal output circuit for generating an audio output control signal including the corresponding band filter and volume based on the input operation signal. A voice output control circuit for processing an input voice signal by setting a band filter and a volume based on an input voice output control signal; and a band filter and a volume control data generated by the control signal output circuit, A satellite broadcast receiver characterized by comprising a non-volatile memory for storing each channel.