JPH0342477U - - Google Patents

Description

[Brief explanation of drawings]

Figure 1 is a block diagram showing an embodiment of this device, Figure 2 is a waveform diagram showing the power supply waveform and the waveform of the signal supplied to the line, Figure 3 is a block diagram showing the basic operation of this device, and Figure 4 is a block diagram showing the basic operation of this device. The figure shows the power supply waveform and the phase delay of the signal supplied to the track circuit, Figures 5 and 6 are wave diagrams of each part, Figure 7 shows the signal appearance, and Figure 8 is an example of a conventional device. FIG. 9 is a diagram showing a signal transmission state, and FIG. 10 is a waveform diagram when signal transmission is performed. 8... Switch, 12, 16, 20... Waveform shaping circuit, 13... Shift register, 14... Flip-flop, 17... Change detection circuit, 18, 1
9...AND circuit, 21, 22...Inverter.

Claims (1)

[Claim for Utility Model Registration] A waveform to be sent to the track circuit is generated based on an AC power supply, and the phase of the waveform is changed when the forward signal is in a stopped state and in other states. In a power-synchronized signal transmitter that uses a power-synchronized signal transmitter that has an opposite phase, there is a transmitter that transmits a waveform with half the frequency of the AC power source, and a transmitter that transmits a waveform based on the polarity of the AC power source at the rising or falling point of the waveform transmitted from the transmitter. A power-synchronized signal transmitter consisting of a receiver that determines phase inversion information from the receiver.