JPS62140463U - - Google Patents

Description

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of the cursor signal generation circuit of the present invention, FIG. 2 is a diagram showing an example of recording frequency analysis results, FIG. 3 is a diagram showing an example of recording cursor lines and signal lines, and FIG. Figure 3a shows the case where the cursor line does not overlap the signal line, Figure 3b shows the case where the high density cursor line overlaps the signal line, and Figure 3c shows the case where the low density cursor line overlaps. FIG. 6 is a diagram showing a case where the signal line overlaps with the signal line. DESCRIPTION OF SYMBOLS 1...Memory circuit, 2...Selector circuit, 3...Address control circuit, 4...Operation unit, 5...Cursor generation circuit, 10...Input terminal, 20...Output terminal.

Claims (1)

[Scope of utility model registration request] A cursor signal generation circuit that sends a cursor signal to a recording device that displays frequency analysis data in gradations includes an operation section that sets the cursor frequency and specifies the cursor density, and a cursor generator that generates cursor data based on the cursor density. a selector circuit that selects either the cursor data or the frequency analysis data according to a first or second state of the switching signal; and a selector circuit that writes the data selected by the selector circuit. It consists of a memory circuit and an address control circuit that specifies the write address of the data to be written into the memory circuit, and the cursor generation circuit is configured to adjust the frequency of the data to be written to the write address of the memory circuit and the cursor frequency. A cursor signal generating circuit characterized in that the switching signal is set to a first state when a match occurs and is set to a second state when a match does not match.