JPS6241429Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an automatic traffic information recording device that can automatically record traffic information.

In West Germany, a broadcast station sends an SK signal to notify that traffic information may be broadcast, and a DK signal to notify that traffic information has actually started, and these signals make it possible to ensure traffic information. so that it can be received. But young
In order to receive traffic information with a receiver that can only receive SK signals, it is necessary to keep tuning to the broadcast signal of the broadcast station that is broadcasting that SK signal, so it can only listen to that broadcast. Therefore, by making it possible to receive both SK and DK signals, you can enjoy music played on a tape recorder until the traffic information starts, and when the traffic information starts, the broadcast signal of the broadcasting station broadcasting the traffic information starts. There are devices that allow automatic reception, but with such devices, the music, etc. that you were listening to is interrupted while traffic information is being broadcast.

The present invention eliminates such drawbacks, and uses a DK signal to put a dedicated tape recorder into the recording state, record the traffic information signal on the tape recorder, and read the recorded traffic information at any convenient time. This invention relates to an automatic traffic information recording device that allows users to play and listen to traffic information.

The present invention will be explained below with reference to the drawings. 1 is an antenna, and 2 is a tuner circuit connected to the antenna 1, which includes a high frequency amplifier, a local oscillator, and a mixer. 3 is an intermediate frequency amplification circuit, 4 is a detection circuit, 5
is a traffic circuit, in which a 57KHz SK signal is used to notify that a broadcasting station may broadcast traffic information, and the SK signal is AM modulated at 125Hz to notify that traffic information broadcasting has actually started. D.K.
Detect the signal. Note that the tuner circuit 2, intermediate frequency amplification circuit 3, and detection circuit 4 are separately required for recording traffic information as shown in this embodiment, as well as for receiving other broadcast signals, but are not shown here. .

6 is an amplifier circuit for amplifying the SK signal, 7 is an SK signal notification circuit, and 8 is an amplifier circuit connected to the detection circuit 4, the output of which is applied to a magnetic head 9 and recorded on a tape 10. 11 is a DK terminal connected to the traffic circuit 5, and 12 is a signal for putting the tape recorder into recording standby mode.
ST terminal, 13 is a recording terminal connected to the recording switch 14, 15 is a first NAND circuit whose input terminal is connected to the ST terminal 12 and the recording terminal 13, 16 is one input terminal connected to the DK terminal 11, and the other A second NAND circuit whose input terminal is connected to the first NAND circuit 15 via an inverter 17; 18 is a first transistor that is turned on and off by the second NAND circuit 16; 19 is a governor circuit that connects the motor 20; It consists of a second transistor 21 connected in series and turned on and off by the first transistor 18, a third transistor 22 that controls the second transistor 21, and several resistors.

Reference numeral 23 designates a rotation detection circuit, which includes a switch 25 that turns on and off while the reel shaft 24 is rotating, a fourth transistor 26 that turns on and off in response to the on and off of the switch 25, a resistor 27 and a capacitor 28 connected to the fourth transistor 26. time constant circuit 29,
The sixth and seventh transistors 31 and 3 are turned on or off depending on the state of the fifth transistor 30 and the time constant circuit 29 controlled by the first NAND circuit 15.
2, and a plunger 33 for keeping the tape recorder in operation.

Next, the operation of the present invention will be explained. To record traffic information, first perform a search and select a broadcast signal that broadcasts traffic information. Whether or not traffic information is broadcast is determined by the fact that when a broadcast signal containing traffic information is received, an SK signal is detected by the traffic circuit 5, and the SK signal notification circuit 7 is operated by the SK signal. Therefore, it can be seen that a broadcast signal broadcasting traffic information has been received. After the broadcast signal with the traffic information is selected, ST terminal 1
2 and turn on the recording switch 14, the output of the first NAND circuit 15 goes to level "0" and the output of the inverter 17 goes to level "1", so the fifth transistor 30 is turned on and the recording switch 14 is turned on. The sixth transistor 31 is turned off, and as a result, the seventh transistor 32 is turned on, so that the plunger 33 is energized and the tape recorder mechanism etc. are put into a recording state. However, since the motor is stopped at this time, no recording is made and the device is placed in a so-called standby state.

If the fifth transistor 30 is not present, the reel shaft 24 is not rotating in the standby state, so the fourth transistor 26 is turned off, and the capacitor 28 is charged, turning on the sixth transistor 31.
Since the seventh transistor 32 is turned off, the plunger 33 cannot be excited, and the standby state cannot be maintained.

In the above state, since the DK signal is not applied to the DK terminal 11, the output side of the second NAND circuit 16 is at level "1", so the first transistor 18 is turned on and the second transistor 31 is turned off. Motor 20 is not rotated.

However, when traffic information began to be broadcast, the DK signal changed to DK.
When applied to the terminal 11, both input terminals of the second NAND circuit 16 become level "1", and the output level is "0", so the first transistor 18 is turned off, the second transistor 21 is turned on, and the motor 2 is turned off.
0 to rotate the motor 20. Thereby, the tape 10 is driven, and the traffic information signal is detected by the detection circuit 4, then applied to the amplifier circuit 8, amplified, and then supplied to the magnetic head 9 and recorded on the tape 10. When the broadcasting of traffic information ends and the DK signal disappears, the output of the second NAND circuit 16 becomes level "1" again, turning on the first transistor 18, which turns off the second transistor 21 and stops the motor 20. let If the operator knows that traffic information has been recorded using a lamp or the like, he or she can play it back at an appropriate time.

The automatic traffic information recording device of the present invention allows operators to listen to desired radio broadcasts without being interrupted by traffic information broadcasts, and when they know that traffic information has been recorded, they can play it back and listen to it at a convenient time. I can do it.

[Brief explanation of drawings]

The figure is a circuit diagram of the automatic traffic information recording device of the present invention. 5...Traffic circuit, 11...DK terminal,
12...ST terminal, 13... Recording terminal, 15...
1st NAND circuit, 16... 2nd NAND circuit, 18
...First transistor, 20...Motor, 21...
...Second transistor.

Claims (1)

[Scope of utility model registration request] A tuner circuit that reproduces broadcast signals received by the antenna, a traffic circuit that detects DK signals and SK signals that notify traffic information reproduced by the tuner circuit, and a plunger for reproduction that is controlled by the SK signals. An automatic traffic information recording device consisting of a pause transistor that is excited and enters a recording standby state, and a recording transistor that is controlled by a DK signal to rotate a motor and enter a recording state.