JPH02135927A - Receiver - Google Patents

Abstract

PURPOSE:To improve the operability of a multiband receiver, especially an on-vehicle receiver or the one to respond to remote control by recognizing the name of a reception broadcast station and a frequency, etc., in voice. CONSTITUTION:By designating the address of a memory 17 to a latch 16 when sound data exists in the memory 17, the sound data of a designated address is outputted from a D/A converter 20 as a voice signal via an amplifier 7 and a speaker 8. Also, a controller 12 outputs the address of the memory 17 sequentially to the latch 16 of a block 21 for voice synthesis. Therefore, a signal converted to the voice signal like (FM) (seven) (ten) (six) (period) (zero) (MHz) is outputted as the output of the D/A converter 20 by the block 21 for voice synthesis, and the voice signal is inputted to the amplifier 7, and is outputted from the speaker 8. In such a way, it is possible to recognize a reception frequency by audition.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a receiver, and more particularly, to a receiver having a %KPLL frequency synthesizer and a controller for controlling the synthesizer.

[Conventional technology]

Conventional receivers of this type have an antenna 1 that receives radio waves.
, a high frequency amplification stage 2, a mixer 3, a detector 4, a multiplexer 5, a mute circuit 6, and an amplifier 7.

The oscillation frequency is input to the speaker 8 and the voltage controlled oscillator (VCO) 9 that sends the received frequency to the mixer 3.

PL fed back via low-pass filter 10
The controller 12 controls the L circuit 11, the PLL circuit 11, and the mute circuit 6 and receives the detector 4 as an input, a driver circuit 13, a display 14, and a key input unit 15 for the controller 12. Ru.

This type of receiver converts signals such as the reception frequency output from the controller 12 using a display driver 13, and displays the frequency and channel number (TV, etc.) using a display 14 such as an LED, fluorescent display tube, or LCD. The configuration was as follows.

[Problem to be solved by the invention]

The conventional receiver described above is configured to recognize the reception frequency using the display element of the indicator 14, so for example, in the case of a car-mounted receiver, the reception frequency must be checked visually while driving the car. However, the disadvantage is that it is not only troublesome but also dangerous.

Furthermore, home receivers and the like have the disadvantage that the comparatively small display element makes it difficult for visually impaired people or those who attempt to tune from a distance by remote control to visually recognize the receiver.

It is an object of the present invention to solve the above-mentioned drawbacks, to reduce the danger even when installed in a vehicle, and to enable extremely easy tuning.
The goal is to provide a receiver with

[Means to solve the problem]

The configuration of the receiver of the present invention includes a tuner circuit including a PLL frequency synthesizer, a controller for controlling the PLL frequency synthesizer, an output means for outputting a code signal indicating the frequency or broadcasting station being received from the controller, and the controller for controlling the PLL frequency synthesizer. One of the plurality of pre-stored audio data is selected by the code signal outputted by the output means.
The present invention is characterized by comprising a speech synthesis circuit that selects one and outputs it as speech.

〔Example〕

Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a block diagram of an FM band receiver, which is a receiver according to a first embodiment of the present invention. In FIG. 1, when a key is manually input from the channel selection key input unit 15, the controller 12 sets a division ratio from the reception frequency corresponding to the pressed key and outputs it to the PLL circuit 11. The desired frequency is selected. Preferably, the controller 12 is a one-chip microcomputer or the like. The display driver 13 outputs display data output from the controller 12 to the display 14.

The display 14 is an LED-? Usually, the received frequency etc. is displayed on an LCD, fluorescent display tube, etc.

The speech synthesis circuit block 21 is preferably a one-chip LSI. This transmits the data written in the memory 17 to the system controller 18 based on the data set in the latch 16, and sends the data to the memory 17 via the PCM decoder 19 and D/A converter 2'0.
This is a circuit block that converts digital data No. 7 into audio signals. Other parts are the same as those shown in FIG.

Next, specific operations will be explained.

Now, if the memory 17 contains audio data as shown in FIG.
The A converter 20 outputs the signal as an audio signal via the amplifier 7 and the speaker 8.

For example, (FM76.0MHz
) is selected, the controller 12 outputs a signal to the mute circuit 6 to interrupt the radio audio,
A division ratio of 1 and display data (76.0 MHz) are output to the PLL circuit 11 and display driver 13, respectively. As a result, the reception frequency is tuned, and the display 14
The received frequency is visually indicated. Further, the controller 12 sequentially outputs the addresses of the memory 17 to the latch 16 of the speech synthesis block 21 as follows.

[E→7→A→6→C→0→D].

Therefore, the speech synthesis block 21 outputs 1 FM "Nana" 1 Syuu "10" to the output of the D/A converter 20.
A signal converted to an audio signal is output as "0 ten #1 zero megahertz".

This audio signal is input to the amplifier 7 and multiple outputs from the speaker 8, making it possible to hear the reception frequency. In addition, since the radio audio signal is cut by the mute circuit 6 at this time, there is no need to disturb the sound of the radio audio, and the amplifier 7 also has the advantage that it can be used both for the radio and for sound synthesis. be.

FIG. 3 is a block diagram of a receiver according to a second embodiment of the present invention. In FIG. 3, one circuit block 21', memory 1
The parts other than 7' are the same as in FIG.

In particular, the circuit block 21' has a selector 22.

By the way, there are many recent home stereo receivers that can receive multiple hands such as AM pan)"-?, FM band, TV band, etc., but in general, AM band and FM band are often indicated by frequency. When performing automatic frequency sweep, etc., it is quite troublesome to compare frequencies and broadcasting station names.

Therefore, some sets store broadcasting station name data and frequencies for each region in ROM, etc., and display the broadcasting station name in a dot matrix on the LCD. You may also consider telling them your name.

The operation shown in FIG. 3 will be explained with reference to FIG. 4.

Now, when the automatic frequency sweep key is pressed by the station selection key manual section 15, the controller 12 sequentially sets the division ratio in the PLL circuit 11 until there is an SD (station detector) output from the detector 4. Automatically sweeps up to a certain frequency of the broadcast station.Here, the memory 17
1C has the data shown in FIG. 4 written therein, and if it is automatically swept and it is determined that there is an SD double signal at 825 MHz, the controller 12 sequentially searches the upper n bits of each address in the memory 17. And then,
Address “1” with code number corresponding to 815MHz
” to remember. At this time, the system controller 18
will stop functioning. Next, the controller 12 activates the system controller 18 and re-specifies the stored address "1", so that the lower m bits of audio data are converted to the audio signal "NHK" through the selector, and the audio data is output from the speaker 8. will be output.

That is, it becomes possible to recognize the broadcasting station name by voice. Furthermore, the relationship between the broadcasting station name and the frequency often differs depending on the receiving area, but in this case, it can be handled simply by replacing the memory 17.

〔Effect of the invention〕

As explained above, the present invention is capable of recognizing the received broadcasting station name, frequency, etc. by voice, and is particularly useful for in-vehicle use.
The multi-band receiver, which is compatible with remote control, is easy to operate and has the effect of providing a set that is easy to use even for visually impaired people.

r　------1

[Brief explanation of the drawing]

FIG. 1 is a block diagram of a receiver according to a first embodiment of the present invention;
FIG. 2 is a data configuration diagram of the memory in FIG. 1, FIG. 3 is a block diagram of a receiver according to a second embodiment of the present invention, and FIG.
FIG. 5 is a block diagram of a conventional receiver. DESCRIPTION OF SYMBOLS 1...Antenna, 2...High frequency amplification stage, 3...Bexer, 4...Detector, 5...Multiplexer, 6...
...Mute circuit, 7...Amplifier, 8...Speaker, 9...Voltage 21111 mW, 10...Low pass filter, 11...PLL circuit, 12...Controller, 13...・Display driver, 14...display device,
15... Key human power department, 16... Launch circuit, 17,
17'...Memory, 18...System controller, >, 19...PCM7' coder, 20...D/A
Converter, 21.21'...Speech synthesis block Figure 2 Figure 4

Claims (1)

[Claims] a tuner circuit including a PLL frequency synthesizer; a controller for controlling the PLL frequency synthesizer;
an output means for outputting a code signal indicating the frequency or broadcasting station being received from the controller; and a code signal output by the output means to select one from a plurality of pre-stored audio data and output the audio. A receiver characterized in that it is equipped with a sound synthesis circuit that outputs as follows.