JP3043202B2 - Radio receiver - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a radio receiver, and more particularly, to a radio receiver for displaying the name of a received broadcasting station.

[0002]

2. Description of the Related Art Conventionally, by inputting all or part of a broadcast station name using a key for inputting a broadcast station name, a corresponding broadcast station name is obtained from broadcast station name information stored in a memory. There is a radio receiver which searches for a broadcast station and switches the receiving station to the broadcast frequency of the searched broadcast station.

In such a conventional radio receiver, broadcast station name information and broadcast frequency information corresponding to the broadcast station name information are stored in a memory in advance, and the broadcast station name is input using a character input key among operation keys. Next, when the tuning key is operated,
The broadcast station name information corresponding to the input broadcast station name is searched. As a result of the search, when all or a part of the broadcast station name information is detected, the frequency division ratio data based on the broadcast frequency information corresponding to the detected broadcast station information is sent to the variable frequency divider of the frequency synthesizer. The reception frequency is switched to the broadcast frequency (Japanese Patent Laid-Open No. 5-3171).

[0004]

However, in the case of the above-mentioned conventional radio receiver, in addition to the problem of having to operate a plurality of keys such as a character input key and a tuning key, the user has to operate the key. There was a problem that a station could not be selected unless the broadcast station name was stored.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a radio receiver capable of reducing the number of operation keys and the number of times of operation required for channel selection and enabling channel selection even when a broadcast station name is not known. .

[0006]

SUMMARY OF THE INVENTION A radio receiver according to the present invention includes a plurality of broadcast station name information and respective broadcast station name information.
Storage means for storing broadcast frequency information of a broadcasting station based on
Display means for displaying a broadcast station name;
Display the broadcast station name based on the stored broadcast frequency name information
Forward operation instruction key to be displayed on the container, and the forward operation
By pressing the instruction key, the data stored in the storage means is stored.
Read the broadcast station name information and add it to the read broadcast station name information.
Station name update control to display the broadcast station name based on the display
Means, the timer means
Before receiving the ON output from the forward operation instruction key.
Timer control means for causing the timer means to start timing
Receiving the ON output from the forward operation instruction key.
Start the transmission name update and set the timer
Before the fixed time elapses, the forward operation instruction key is turned off.
If not, update the display of the broadcast station name every set period.
When setting the new broadcast station name control means and the timer means
After the time elapses, the off output from the forward operation instruction key is detected.
When broadcasting, the broadcast corresponding to the broadcast station name displayed on the display is displayed.
Sends a control signal to set the transmission frequency to the reception frequency
And a tuning frequency control means .

[0007]

According to the radio receiver of the present invention, the progressive operation finger
When the display key is turned on,
Receiving the ON output, the timer the timer control means
-Timing by means is started. Also, forward operation
In response to the ON output from the instruction key, the broadcast station name control
Under control, the broadcaster name update is started,
Before the set time of the timer means elapses, the forward operation instruction key is
When the display of the broadcast station name is set when not controlled to the off state
It is sequentially updated every interval. After the elapse of the set time of the timer means
OFF output from the forward operation instruction key is detected
On the display under the control of the tuning frequency control means.
The broadcast frequency corresponding to the displayed broadcast station name is
Control signal is sent. Based on this control signal, the reception frequency is controlled to the broadcast frequency of the name of the broadcast station being displayed, and the broadcast of that broadcast station is received. Therefore, it is possible to select a station even when the broadcast station name is forgotten by merely pressing the forward operation instruction key until the desired broadcast station name is displayed. Further, Misumi pressing operation is a forward operation instruction key for channel selection, steering Sakuki over number also requires the pressing times even less.

[0008]

The present invention will be described below with reference to examples. FIG.
FIG. 1 is a block diagram showing a configuration of an embodiment of the present invention.

The radio receiver 1 according to the present embodiment includes an antenna 2
High-frequency amplifier circuit 3 receiving an output from the frequency synthesizer, a frequency mixing circuit 5 that mixes the frequency with the local oscillation frequency output from the frequency synthesizer 4 upon receiving the output from the high-frequency synthesizer 4 and converts it to an intermediate frequency signal, a frequency mixing circuit 5 An intermediate frequency amplifying circuit 6 for amplifying the intermediate frequency signal output from the amplifier and a detector 7 for detecting the intermediate frequency signal from the intermediate frequency amplifier 6 are provided. These constitute a known synthesizer radio receiver.

The frequency synthesizer 4 includes a reference frequency oscillator 8, a frequency divider 9 for dividing the oscillation frequency of the reference frequency oscillator 8, a phase of an oscillation output of the reference frequency oscillator 8 divided by the frequency divider 9 and a variable component. A phase comparator 10 for comparing the phase of the output of the frequency divider 14 with a phase, a loop filter 11 for integrating the phase comparison output from the phase comparator 10, a voltage controlled oscillator 12 to which the output of the loop filter 11 is applied as a frequency control signal, A prescaler 13 for dividing the oscillation frequency of the voltage controlled oscillator 12; a variable frequency divider for receiving the frequency division ratio data from the microcomputer 15 and dividing the output from the prescaler 13 with a frequency division ratio based on the frequency division ratio data The oscillation output of the voltage controlled oscillator 12 is supplied to the frequency mixing circuit 5 as a local oscillation frequency.

The radio receiver according to this embodiment further includes a microcomputer 15 for controlling channel selection, a memory 17 cooperating with the microcomputer 15, operation keys 16 and a display 18. The memory 17 stores broadcast station name information and frequency division ratio data corresponding to the broadcast frequency of the broadcast station based on the broadcast station name information as broadcast frequency information. The operation keys 16 include a forward operation instruction key 16-1 and the output of the operation keys 16 is sent to the microcomputer 15. The display 18 is a broadcasting station based on the broadcasting station name information output under the control of the microcomputer 15. It is configured to display the first name.

The microcomputer 15 functionally includes timer means 15-1, timer control means 15-2 for receiving ON output from the forward operation instruction key 16-1 and starting time counting by the timer means 15-1, Instruction key 1
The broadcast station name is started to be updated in response to the ON output from 6-1. When the forward operation instruction key 16-1 is not controlled to the OFF state before the elapse of the set time of the timer means 15-1, the broadcast station name is updated. Broadcast station name update control means 15-3,
When the OFF output from the forward operation instruction key 16-1 is detected after the elapse of the set time, the frequency division ratio data for setting the broadcast frequency corresponding to the displayed broadcast station name as the reception frequency to the variable frequency divider 14 is output. that it has a tuning frequency control means 15-4 for delivery.

A description will be given of the channel selecting operation in the embodiment constructed as described above with reference to the flowchart shown in FIG.

When the forward operation instruction key 16-1 is turned on (step S1), the timer means 15-1 starts measuring time under the control of the timer control means 15-2, and updates the broadcast station name. Under the control of the means 15-3, the broadcast station name information stored in the memory 17 is read out from the memory 17 and output to the display 18 to correspond to the broadcast station name information input on the display 18. The broadcast station name is displayed (step S2). Subsequent to step S2, the timer means 15-1
It is checked whether or not the set period has elapsed (step S3).

In step S2, the timer means 15-1
If it is determined that the set period has not elapsed, it is checked whether the forward operation instruction key 16-1 is in the off state (step S4). If it is determined in step S4 that the forward operation instruction key 16-1 has not been turned off, step S3 is executed again following step S4. Wherein when the set period is determined to have elapsed in step S 3 is executed step S2 again.

Accordingly, the forward operation instruction key 16-1
After the is turned on, if the display is not turned off before the set period elapses, the broadcast station name displayed on the display 18 is updated every set time. As a result, the display 1
The update of the display of the broadcast station name in 8 is performed every set period, so that the user can sufficiently recognize the broadcast station name displayed on the display 18.

If the broadcast station name displayed on the display 18 is the broadcast station that the user wants to receive, the forward operation instruction key 16-1 is turned off. Forward operation instruction key 1
When 6-1 is turned off, it is determined by the check in step S4 that the forward operation instruction key 16-1 has been turned off, and the broadcasting station currently transmitting to the display 18 following step S4. The frequency division ratio data corresponding to the name information is retrieved from the memory 17, and the retrieved frequency division ratio data is sent to the variable frequency divider 14 (step S5).

As a result, when the forward operation instruction key 16-1 is on, the display of the broadcast station name is sequentially updated every set time, and the forward operation instruction key 16-1 is turned off. At this time, the broadcast frequency of the broadcast station name displayed when the mobile station is turned off is tuned and the broadcast of the broadcast station is received.

In the above, the tuning detection signal from the detector 7 is sent to the microcomputer 15, and if the reception frequency is set but the electric field strength is weak, that is, if the tuning cannot be detected, a display to that effect is displayed. 18 may be displayed.

Further, the display of the broadcast station name may be sequentially updated every time the forward operation instruction key 16-1 is turned on, and the operation may be shifted to a channel selection operation when no operation is performed for a predetermined time. In addition, the forward operation instruction key 16-1 may be provided in two types, forward and backward, to shorten the search time. In addition, not only the FM band and the AM band but also the mixed band. The display may also be all or part of the broadcast station name or an abbreviation.

[0021]

As described above, according to the radio receiver of the present invention, it is possible to select a station without memorizing the name of the broadcasting station, and to display the name of the broadcasting station, thereby eliminating erroneous selection. Furthermore, the display broadcast station can be updated and selected only by operating the forward operation instruction key, so that the number of operation keys and the number of operations can be reduced. In addition, since the reception of the currently received broadcast is continued during the tuning, there is also an effect that static noise when tuning the frequency manually and sound interruption during tuning are not generated.

[Brief description of the drawings]

FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention.

FIG. 2 is a flowchart for explaining the operation of the present invention.

[Explanation of symbols]

 Reference Signs List 3 high frequency amplifier circuit 4 frequency synthesizer 5 frequency mixing circuit 6 intermediate frequency amplifier circuit 7 detector 14 variable frequency divider 15 microcomputer 15-1 timer means 15-2 timer control means 15-3 broadcast station name update control means 15-4 Tuning frequency control means 16-1 Forward operation instruction key 17 Memory 18 Display

Claims (1)

(57) [Claims] 1. A plurality of broadcast station name information and respective broadcast stations
Record that stores the broadcast frequency information of the broadcast station based on the name information
Storage means, display means for displaying a broadcast station name , and broadcast based on broadcast frequency name information stored in the storage means.
Forward operation instruction key for displaying the transmission station name on the display
And pressing the memory card by pressing the forward operation instruction key.
Read the station name information stored in the column and read
The broadcast station name based on the broadcast station name information is displayed on the display.
In a radio receiver having a transmission name update control means, a timer means and the timer receiving an ON output from the forward operation instruction key.
Timer control means for causing the immersion means to start timing, and a broadcast station receiving on output from the forward operation instruction key
When the name update is started and the timer is set
Before the time elapses, the forward operation instruction key is turned off.
If not, update the display of the broadcast station name every set period.
Broadcasting station name control means, and the forward operation finger after a set time of the timer means elapses.
Displayed on the display when off output from the display key is detected
The broadcast frequency corresponding to the name of the broadcast station inside is set as the reception frequency
Radio control device for transmitting a control signal for controlling the radio frequency .