JPS63187719A - Traffic information station reception system - Google Patents

Abstract

PURPOSE:To change a set frequency by depressing a traffic information button over a preliminarily determined time. CONSTITUTION:The titled system is provide with a traffic information station channel selecting button, plural memories in which traffic information station data is stored, a means which detects the operation of the traffic information station channel selecting button to call specific one of plural traffic information station memories and selects a channel, a timer means which detects the operation time of the traffic information station channel selecting button, and a means which receives the signal of prescribed-time elapse from the timer means to successively switch the specific memory to plural traffic information station memories. When the traffic information station channel selecting button is depressed over two seconds, the channel to be first received by the next depression is changed, and simultaneously, a novel channel is received. If there are three or more traffic information stations, the specific channel is successively switched at every two-second.

Description

[Detailed description of the invention] A. Industrial application field The invention uses an electronically tuned radio receiver.

This invention relates to a traffic information receiving system with selectable traffic information frequency settings.

B6 Overview of the invention By pressing the traffic information button for a predetermined time or more,
You can change the set frequency.

C0 Conventional Technology The conventional traffic information reception system in car audio is as follows:
When receiving a station other than the traffic information station (FM station, AM station other than the traffic information station), press the traffic information button to switch the receiving station to the traffic information station (AM 1620 k) Iz'). It was a system. However, as a traffic information bureau, AM
Currently, in addition to 1620k7 and 1629k)& are prepared as backup stations, the conventional AM 1620kHz
It is becoming inconvenient to simply receive traffic information as a traffic information station.

D1 Problem to be solved by the invention Objective of the invention +1. Traffic Information Bureau AM 1620kl (
It is an object of the present invention to provide a traffic information station receiving system that makes it possible to eliminate the problem of receiving only z.

Means for Solving the E0 Problem In order to achieve the above object, a traffic information station reception system using an electronically tuned radio receiver according to the present invention includes a traffic information station selection button and a traffic information station data storage. a plurality of memories, means for detecting the operation of the traffic information station selection button, calling a specific memory among the plurality of traffic information station memories and selecting a station, and operation of the traffic information station selection button. The gist of the present invention is to include timer means for detecting time, and means for sequentially changing specific memories among the plurality of traffic information bureau memories in response to a predetermined time elapsed signal from the timer means.

By pressing the F0 effect traffic information station selection button for 2 seconds or more, the station that will be received first the next time it is pressed will be changed and the new station will be received at the same time. When there are three or more traffic information stations, the specific station is changed sequentially every 2 seconds.

G. EXAMPLES The present invention will be explained in more detail below using examples with reference to the drawings, but these are merely illustrative and various modifications and improvements can be made without going beyond the scope of the present invention. Of course, this is possible.

FIG. 1 is a block diagram showing the configuration of a traffic information station receiving system according to the present invention. In the figure, 1 is a liquid crystal display device (unknown below) that displays serial data from a microcomputer.
In ms, it is abbreviated as LCD. ) into a data output for driving an LCD driver.

2 is an LCD.

Clock time, reception frequency, reception R band (AM.

FM) Loudness on/off, Dolby on/off, APC on/off, Metal on/off, stereo station, and driving display.

Microcomputer 3 outputs LCD driver drive signal, PLL frequency synthesizer drive signal, AM, FM
It outputs power supply circuit drive signals and signals for driving other electric circuits, and is provided with a key matrix circuit 9. The PLL frequency synthesizer 4 divides the AM or FM local oscillation frequency by inputting frequency division data, compares the phase with a reference frequency, and outputs an output from the charge pump circuit. FM tuner 5 and AM tuner 7 are V
The T voltage drives the local oscillation circuit, antenna tuning circuit, and high frequency tuning circuit to receive broadcast stations. The FM power supply circuit 6 supplies voltage to the FM tuner 5. The circuit is driven by the FM terminal of the microcomputer 3.

In the AM power supply circuit 8, the zero circuit that supplies voltage to the AM tuner 7 is driven by the Al14 terminal of the microcomputer 3. The operation button 9 is a key matrix of momentary switches representing the buttons on the escutcheon of a car audio system.

Figure 2 is a front view of the escutcheon, in which 10 is the reset button, 11 is the clock button, 12 is the traffic information button, 1 is the
3 is the FF button, 14 is the program, 15 is the rewind button, 16 is the repeat button, 17 is the Dolby button, 18 is the eject button, 19 is the cassette slot, 20 is the tape scan button, 21 is the manual up button, 22 is the A manual down button, 23 is a loudness button, 24 is an A/M switching button, 25 is a recall button, 26 is a power type, 27 is a volume, and 28 is a balance volume.

FIG. 3 is a flowchart for explaining the operation of the apparatus shown in the Coe diagram.

First, frequency division data for AM 1620 kHz reception is stored in memory area F1, and frequency division data for AM 1629 kHz reception is stored in memory area F2.

By monitoring the input board of the key matrix 9 of the microcomputer 3, it is determined whether the traffic information button 12 has been pressed. If not pressed, processes other than traffic information reception are performed; if pressed, processes for traffic information reception are performed. When the traffic information button 12 is pressed, the microcomputer 3 first outputs a signal to mute the audio, thereby muting the audio.

Since the traffic information station is an AM station, the AM tuner 7 must be driven by the microcomputer 3.
Drive the AM power supply circuit 8 by raising the terminal to "high",
Drives AM tuner 7. When receiving FM broadcasts, set the FM terminal of microcomputer 3 to "low".

By raising the AM terminal to “high”, the FM
The AM circuit can be turned off and the AM circuit turned on.

Next, the microcomputer 3 outputs the data stored in the memory area Fl to the PLL frequency synthesizer 4 and the LCD driver 1, thereby enabling the traffic information station AM 1620 kHz to be received. Furthermore, the time until the traffic information button 12 is released is monitored, and if it is less than 2 seconds, the microcomputer 3
Turn down the mute signal, unmute the audio,
AM 1620 kl (Receive the traffic information station of z. If it takes more than 2 seconds from when the traffic information station button 12 is pressed until it is retrieved, the contents of the memory area Fl and the contents of the memory area F2 are exchanged. By outputting the data stored in the memory area Fl from the computer 3 to the LCD driver 1 and the PLL frequency synthesizer 4, the traffic information bureau's A
M1629 kHz becomes receivable and the mute signal of microcomputer 3 is lowered.
Audio muted, AM 1629kHz
can be received by traffic information stations.

Of course, it is also possible to exchange the contents of the memory area Fl and the contents of the memory area F2 and at the same time tune the AM tuner 7 to the station with the new memory contents.

Although the case where the traffic information station has two frequencies has been described above, even in cases where there are more than two frequencies, the intended purpose can be achieved by sequentially changing the specific month every 1, for example, 2 seconds.

As described in detail of the H0 invention, according to the present invention, the frequency of the traffic information station is set to an initial value of AM 1620 kI (z),
AM 1629 kHz is also 4 as a traffic information station! Currently, it is possible to change the initial setting of 1620 k7 to 1629 kl (z) by pressing the traffic information button for 2 seconds or more.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the configuration of a traffic information station receiving system according to the present invention, FIG. 2 is a front view of an escutcheon, and FIG. 3 is a flowchart for explaining the operation of the device shown in FIG. 1. 1...LCD driver, 2...
...LCD, 3...Microcomputer, 4...PLL frequency synthesizer, 5...FM tuner. 6...FM power supply circuit, 7...
...AM tuner, 8...AM power supply circuit, 9......operation button. Makoto accent＼、＼））

Claims (1)

[Scope of Claims] (a) Traffic information station selection button; (b) multiple memories for storing traffic information station data; (c)
) A means for detecting the operation of the traffic information station selection button, calling up a specific memory among the plurality of traffic information station memories, and selecting a station; (d) the operation time of the traffic information station selection button; An electronically tuned radio reception characterized by comprising: timer means for detecting; and (e) means for sequentially changing a specific memory among the plurality of traffic information station memories in response to a predetermined time elapsed signal from the timer means. A traffic information station reception system that uses a machine.