JPH01260979A - Fader device - Google Patents

Abstract

PURPOSE:To correct the position deviation of fader levers of F1, F2 by manual operation and to keep the relation of y=1-x by switching an output of an F1 fader unit and an output of the 2nd inverter circuit receiving an output data of an F2 fader unit and outputting 1's complement and outputting the result as the 1st fader data, where x is the F1 fader data and y is the F2 fader data. CONSTITUTION:With the F1, F2 operated with accurate arrangement, they are used while being mounted to attain the relation of y=1-x at all times in the relation of 1's complement, where x is the F1 fader data and y is the F2 fader data. Because of manual operation, if the F1, F2 fader levers cause position shift, a comparator circuit 5 detects it and controls a switching circuit 6 when it is within a preset difference and outputs an output data of the 2nd inverter circuit 4 at an output terminal Y. Thus, the relation of the fader data outputted at output terminals 7, 8 satisfies y=1-x and the position deviation of the fader levers by manual operation is corrected.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a fader device, and more particularly to a fader device installed in a television image adjustment device.

[Conventional technology]

Conventionally, a fader device of a television image adjustment device is equipped with a pair of two fader levers called Fl and F2 adjacent to each other, and used for sub-control.

At this time, the F1 fader and the F2 fader are mounted at positions that have a relationship of y=1-x, where F1 fader data is x-F2 fader data is y.

The equipment operator uses F1 and F2, depending on operational needs.
If you want to obtain different effects using the fader levers, you can operate them separately, and if you want to maintain the above y-1-x relationship, you can usually operate these two levers by aligning them with your fingertips. Was.

[Problem to be solved by the invention]

When controlling to maintain the above-mentioned relationship of y=1-x, in the conventional fader device, the Fl
, since the F2 fader lever may be misaligned, the y
The disadvantage is that it is difficult to operate while maintaining the relationship =1-x.

[Means to solve the problem]

The fader device of the present invention includes an F1 fader unit that outputs fader data according to the position of the fader lever, and an I? 2 fader unit, a first inverter circuit that inputs the output data of the F1 fader unit and outputs its one's complement, and a second inverter circuit that inputs the output data of the F2 fader unit and outputs its one's complement. The inverter circuit compares the output data of the first inverter circuit and the output data of the F2 fader unit, and determines whether the difference value is within a preset value. If not, a switching control signal is sent. a comparator circuit that outputs
A switching circuit receives a switching control signal output from the comparator circuit, switches between the output of the F1 fader unit and the output of the second inverter circuit, and outputs the result as first fader data.

〔Example〕

Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a block diagram of an embodiment of the present invention. In the embodiment shown in FIG. 1, 1 is an F1 fader unit, 2 is an F2 fader unit
The fader units each output fader data corresponding to the position of the fader lever.

This fader data has a 1's complement relationship with each other when Fl and F2 are accurately aligned and operated, that is, if F1 fader data is x and F2 fader data is y, then y = 1 - x. Implement and use it so that it becomes a relationship.

3 and 4 are inverter circuits; 3 inputs the output data of the F1 fader unit and outputs the one's complement of the F1 fader data; the first inverter circuit 4 inputs the output data of the F2 fader unit; This is a second inverter circuit that outputs the one's complement of F2 fader data.

The comparator circuit 5 inputs the output data of the first inverter circuit 3 and the output data of the F2 fader unit 2, compares them, and switches 6 depending on whether the difference value between the two is smaller than a preset value. Switching control signal 5 without switching the circuit
Outputs 01. The switching circuit 6 switches between the output data of the F1 fader unit 1 and the output data of the second inverter circuit 4 under the control of the output signal of the comparator circuit 5, and outputs it to the output terminal 7 as first fader data. Further, the output of the F2 fader data unit 2 is outputted to the output terminal 8 as second fader data 801.

F1 fader unit 1 and F2 fader unit 2
The fader levers of F1 and F2 are usually mounted adjacent to each other, and if the operator of the device wants to obtain different effects from the F1 and F2 fader levers, they can be operated separately according to operational needs. When controlling to maintain the above relationship of y=1-x, these two fingers are usually operated by aligning them with the fingertips.

When the Fl and F2 fader levers are divided and operated, the F2 fader data of the F2 fader unit 2 and the output data of the first inverter circuit 3 are proportional to the magnitude of the shift in lever position. Change. As the magnitude of the difference value set in the comparator circuit 5, if a value of about 0.05 is given to y=1-x, the output data of the first inverter circuit 3 and the f2 fader unit 2 will be Since the difference exceeds this, the comparator circuit outputs a switching control signal 501 that causes the switching circuit 6 to select the output data of the F1 fader unit 1. As a result, Fl fader data is output to output terminal 7, and F2 fader data is output to output terminal 8.
Fader data is output, thereby allowing independent control by operating the Fl and F2 fader levers.

When performing control to maintain the relationship y=1-x, the operator operates the Fl and F2 fader levers by aligning them with his fingertips.

Here, since it is manually operated, the Fl and F2 faders
The levers become misaligned with each other, making it impossible to satisfy the above condition of y=1-x, but at this time, the difference value between the output data of the -th inverter circuit 3 and the output data of the F2 fader unit 2 is Fl.

This is within a certain range due to the positional deviation of the F2 fader lever.

The comparator circuit 5 detects this, and if the difference is within a preset difference value, the switching circuit 6 is controlled to output the output data of the second inverter circuit 4 to the output terminal 7.
The one's complement of the F2 fader data is output to the output terminal 7 as the first fader data, and the F2 fader data is output to the output terminal 8.
By outputting the fader data as is, the relationship between the fader data output to output terminals 7 and 8 is as shown above.
1-x is satisfied, and the positional deviation of the fader lever caused by human manual operation is corrected.

〔Effect of the invention〕

As explained above, the present invention inputs the output data of the Fl' fader unit and F2 fader unit, which output fader data based on the position of the fader lever, and the F1 fader unit, and outputs the one's complement. Compare the output data of the first inverter circuit and the output data of the F2 fader unit with the first inverter circuit that inputs the data of the F2 fader unit and outputs its one's complement. A comparator circuit controls the switching circuit depending on whether the difference value of the data is within a certain value, and the output of the F1 fader unit is controlled by the comparator circuit, and the output of the second inverter circuit is switched between the first and second inverter circuits. By having a switching circuit that outputs to the output terminal and a second output terminal that outputs the output data of the F2 fader unit, the Fl that can be manually operated by a human.

Correct the mutual positional deviation of the F2 fader lever, and
This has the effect of being able to control so as to maintain the relationship = 1-x.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of an embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... F1 fader unit, 2... F2 fader unit, 3... First inverter circuit, 4...
・Second inverter circuit, 5... comparator circuit,
6...Switching circuit, 7...Output terminal, 8...Output terminal.

Claims (1)

[Claims] An F1 fader unit and an F2 fader unit that output fader data based on the position of the fader lever, a first inverter circuit that inputs the output data of the F1 fader unit and outputs its one's complement, and output data of the F2 fader unit. Enter 1
A second inverter circuit that outputs the complement of the second inverter circuit compares the output data of the first inverter circuit and the output data of the F2 fader unit to determine whether or not the difference value is within a preset value. In this case, a comparator circuit outputs a switching control signal, and while receiving the switching control signal outputted from the comparator circuit, the output of the F1 fader unit and the output of the second inverter circuit are switched and output as first fader data. a switching circuit for outputting the first fader data and the second fader data output from the F2 fader unit.