JPH04135030U - radio receiver display device - Google Patents

Abstract

(57) [Summary] [Purpose] To display the AM stereo reception function without providing a special indicator. [Structure] When AM reception is enabled, only the AM display section 1 and the stereo reception display section 3 of the display device 5 are displayed for a certain period of time during AM stereo reception, and the other display sections are not displayed. Also, during AM forced monaural reception, A
Only the M display section 1 is displayed, and the other display sections are not displayed.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention displays AM stereo reception function without the need for special indicators. The present invention relates to a display device for a possible radio receiver.

0002

[Conventional technology]

Conventionally, as a radio receiver with an AM stereo reception function, as shown in Fig. 4, A device equipped with a display device 5 is known. In Figure 4, 1 is the AM display section and 2 is the reception section. 3 is a frequency display section, 3 is a stereo reception display section, and 4 is an AM stereo display section. Also , a stereo/forced mono changeover switch is provided at a position not shown in the display device 5. ing.

0003 To display the AM stereo reception function on such a radio receiver, set the AM status The AM stereo display section of the display device 5 is linked to the operation of the Leo/forced mono changeover switch. 4 is being turned on.

0004

[Problem that the idea aims to solve]

By the way, in the display device of a conventional radio receiver, the A An M stereo display section is provided to display the AM stereo reception function, so the display occupies extra space in the device or requires extra circuitry for the AM stereo display. The problem is that it requires

[0005] The present invention was developed in response to the above-mentioned problems, and it takes up extra space. The present invention provides a display device for radio receivers that does not require any additional circuit components. The purpose is to provide

[0006]

[Means to solve the problem]

In order to achieve the above object, the present invention has an AM stereo reception function and a band In a display device for a radio receiver equipped with a code display and a stereo reception display, When in the M reception state, the band indicator will be displayed for a certain period of time when receiving AM stereo. Displays only the AM display and stereo reception display, and when receiving AM forced monaural The method further includes a control means for displaying only the AM display section of the band display for a certain period of time. This is a characteristic feature.

[0007]

[Effect]

When receiving AM stereo, use the band indicator and stereo reception indicator. Only the AM display section of the fixed-time band display and the stereo reception display are displayed. Also , only the AM display section of the band display unit is displayed for a certain period of time during AM forced monaural reception. let If you want to display the AM stereo reception function by this, the AM stereo reception function will be displayed. There is no need to provide a Leo display section.

[0008]

【Example】

Embodiments of the present invention will be described below with reference to the drawings.

[0009] FIG. 1 shows an embodiment of a display device for a radio receiver according to the present invention. 5 is provided on a part of the operation panel 10 of the radio receiver, and lights up when receiving AM. AM display section 1 that displays the reception frequency when receiving radio, and reception frequency display section 2 that displays the reception frequency when receiving radio. , Stereo reception display section 3 that lights up when receiving stereo, F that lights up when receiving FM It is equipped with an M display section 6. Note that 7 is a preset channel display section. Also 111 is an indicator indicating that the anti-theft function is provided.

0010 In addition, an operation section 107 is provided on other parts of the operation panel 10, and this operation section 1 07 is the channel preset tuning key 107a, and the stereo/forced mono switch. 107b, a mode switching key 107c, and a power key 107e.

[0011] FIG. 2 is a block diagram showing the configuration of a radio receiver having the operation panel 10 as shown in FIG. This is a diagram.

0012 Broadcast waves received by the antenna 100 are transmitted to the FM channel of the tuner section 101. After being processed by the tuner section 101a or the AM tuner section 101b, the audio signal After being amplified by the amplifier section 102, it is output from the speaker 103. be done.

[0013] The microcomputer 106 receives clock pulses from the clock 104 and anti-theft code. data to be read from the memory 105 that stores information such as Calculation is performed based on the operation signal from 07. Also, the microcomputer 106 is a tuner The unit 101 and the tape deck unit 108 can be switched to operate, or the power supply unit 9 can be controlled. performs various control operations such as

[0014] Next, the operation during AM reception will be explained.

[0015] When the mode switching key 107c is switched to AM, the microcomputer 106 It detects and outputs a signal for operating the AM tuner section 101b. Also, with this In both cases, the microcomputer 106 changes the position of the stereo/forced mono changeover switch 107b. whether it is detected and received in stereo to the AM tuner section 101b, or if it is forcibly received in monophonic mode. Outputs a signal to indicate whether the signal is received.

[0016] When the stereo/forced mono changeover switch 107b is stereo, the microcomputer 106 displays only the AM display section 1 and the stereo reception display section 3 of the display device 5 for a certain period of time, The other display sections do not display anything. In this case, the display format may be lit, flashing, or You can choose a method such as turning on display section 1 and display section 3 alternately. fixed time After the elapsed time, the AM display section 1, reception frequency display section 2 and preset channel display section will be displayed. Turn on 7.

[0017] In this case, when the AM tuner section 101b receives a stereo broadcast signal, The controller 106 detects this and lights up the stereo reception display section 3 of the display device 5.

[0018] When the stereo/forced mono changeover switch 107b is set to forced mono, the microcomputer 106 displays only the AM display section 1 of the display device 5 for a certain period of time according to the display format described above, and The display section does not display anything. After a certain period of time has passed, AM display section 1, reception frequency table The display section 2 and preset channel display section 6 are turned on.

[0019] Next, when the stereo/forced mono switch 107b is switched to FM, The microcomputer 106 detects this and sends a signal to operate the FM tuner section 101a. At the same time, the FM display section 6 of the display device 5 is turned on. In this case, FM tune When the stereo broadcast signal is received by the stereo broadcast signal, the microcomputer 106 It is detected and the stereo reception display section 3 of the display device 5 is turned on. Also, the FM receiver If it has a forced mono function, it can be easily operated in the same way as the AM receiver described above. Ru.

[0020] According to this embodiment as described above, when displaying the AM stereo reception function, ( 1) When AM stereo reception becomes possible, and (2) when AM forced mono reception becomes possible. When the state is reached, the display device 5 can be displayed as follows.

[0021] (1) When AM stereo reception becomes possible, For example, when starting from a state where AM stereo reception is possible when the power switch is turned on. , to enable AM stereo reception from FM, tape, CD, DAT, TV, etc. When changing the mode, it feels like switching from a forced mono state to a stereo state. For example,

[0022] For the first few seconds, only the AM display section 1 and the stereo reception display section 2 of the display device 5 are displayed. Display it in a format like this. As a result, AM display section 1 and stereo reception display section 2, it can be confirmed that AM stereo reception is in progress. Therefore, there is no need to provide a special AM stereo display section as in the prior art.

[0023] (2) When AM forced mono reception becomes possible, For example, when starting from a state where AM forced mono reception is possible when the power switch is turned on. , AM forced mono reception from FM, tape, CD, DAT, TV, etc. When changing the mode, it seems to have switched from AM stereo state to forced mono state. In such cases,

[0024] For the first few seconds, only the AM display section 1 of the display device 5 is displayed according to the display format described above. Ru. As a result, by looking at the AM display section 1, it is possible to indicate that AM forced mono reception is in progress. You can confirm that.

[0025] In addition, if there is no stereo/forced mono switch, just (1) above is sufficient. Also, if there is a stereo/forced mono switch, please follow (1) and (2) above. has an AM stereo reception function, and can receive stereo reception or monaural reception. It is possible to display whether it is possible.

[0026] The flowchart in FIG. 3 explains the above operations. May of step A Based on the program, first turn on the power switch in step B to start the AM start state. A determination is made as to whether the current state has been reached, and if YES, the flow returns to step Proceed to the tele function display routine. If NO, the flow proceeds to step C.

[0027] In step C, a judgment is made as to whether or not the mode has shifted to AM from another mode. If S, the flow proceeds to step E. If NO, the flow proceeds to step D.

[0028] Determining whether or not the AM stereo/forced mono switch was changed in step D. If YES, the flow proceeds to step E; if NO, the flow proceeds to step A. Return to

[0029] In step F, the position of the AM stereo/forced mono switch is determined. , in the case of forced mono, the flow advances to step H, where only AM display section 1 is displayed. It will be done. In the case of stereo, the flow advances to step G, where AM display section 1 and Only the teleo reception display section 3 is displayed.

[0030] After the display time t in steps G and H is set in advance, the timer is set in step I. Start from time T = 0, and determine whether the timer reaches T = t in step J. will be carried out. If NO, the flow returns until YES. If YES, click Proceed to step K, where the AM display section 1 and stereo reception display section 3 have finished displaying. , restore the display contents to their original state and display other necessary displays, such as the reception frequency display. and return to step A again.

[0031] In this way, according to this embodiment, the AM Stereo reception function can be displayed, so it does not take up extra space on the display device This means that space can be used more effectively. Also, along with this This eliminates the need for extra circuit parts such as display lamps, which helps reduce costs. I can do that.

[0032]

[Effect of the idea]

As described above, according to the present invention, the AM display section and the stereo reception section are used to Since the M stereo reception function is displayed, there is no need for an extra indicator. to avoid occupying extra space and eliminate the need for extra circuit components. I can do it.

[Brief explanation of drawings]

FIG. 1 is a front view showing an embodiment of a display device for a radio receiver according to the present invention.

FIG. 2 is a block diagram showing the configuration of a radio receiver to which this embodiment is applied.

FIG. 3 is a flowchart illustrating the operation of the embodiment of the present invention.

FIG. 4 is a front view showing a conventional display device.

[Explanation of symbols]

1 AM display section 3 Stereo reception display section 5 Display device 10 Operation panel 106 Microcomputer 107 Operation section 107b Stereo/forced mono changeover switch 107c Mode switching key

Claims (1)

[Scope of utility model registration request] Claim 1: In a display device of a radio receiver having an AM stereo reception function and equipped with a band indicator and a stereo reception indicator, when the AM reception state is entered, the AM
It is characterized by comprising a control means that displays only the AM display section of the band display and the stereo reception display for a certain period of time during stereo reception, and displays only the AM display section of the band display for a certain period of time during AM forced monaural reception. Radio receiver display device.