JPH0571993A - Base line position adjusting system - Google Patents

Abstract

PURPOSE:To achieve reduction of operation switches for the adjustment of a base line of a signal and simultaneous adjustment of the positions of base lines in a plurality of channels in a recorder for outputting waveforms of a plurality of channels. CONSTITUTION:This system has a base line position adjusting channel section 1 which comprises a base line position adjustment mode changeover switch 11, channel selection switches A1-An and a channel selection switch control unit 13 and a base line position adjusting section 2 which comprises a base line position memory units B1-Bn and a base line position adjusting switch 21. A channel is selected to adjust the positions of the base lines from a plurality of channels. Thus, only one base line position adjusting switch is enough. With simultaneous selection of a plurality of channels, the positions of the baselines can be adjusted simultaneously in the plurality of channels.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a baseline position adjusting system, and more particularly to a baseline position adjusting system for each channel of a recorder which outputs waveform signals of a plurality of channels.

[0002]

2. Description of the Related Art In a conventional baseline position adjusting system, each channel has a baseline position adjusting volume for operating the vertical movement of the baseline of a waveform signal or, as shown in FIG. 2, a baseline position adjusting switch for each channel. It has C1 to Cn and baseline position storage units D1 to Dn.

Next, the operation will be described.

In the conventional baseline position adjusting method, the baseline position is adjusted by operating each of the baseline position adjusting switches C1 to Cn of the channel for adjusting the baseline position. For the operation of the base line position adjustment switches C1 to Cn, the + direction switch is operated (for example, the push button switch is pressed).
Then, the base line moves in the + direction, and when the switch in the − direction is operated, the base line moves in the − direction. (In the case of the baseline position adjusting volume, the position of the baseline is moved by rotating the knob of the volume resistance.) Baseline position storage unit D
In 1 to Dn, the baseline position adjustment switches C1 to Cn are activated at the same time when they are operated, and the baseline position adjustment of the corresponding channel is enabled. As described above, in the conventional baseline position adjustment method, each channel has the baseline position storage units D1 to Dn and the baseline position adjustment switches C1 to Cn, and each channel is an independent baseline position adjustment method. ..

[0005]

In this conventional baseline position adjusting system, each channel of the recorder output waveform signal has a corresponding baseline position adjusting switch. Therefore, when the number of channels increases, the baseline position adjusting switch accordingly. However, there was a problem in terms of operability and operation panel space. Further, since the base line position adjustment switch is divided for each channel, it is difficult to adjust the base line positions of a plurality of channels at the same time.

[0006]

A baseline position adjusting system according to the present invention includes a baseline position adjusting channel selecting section for selecting an arbitrary one channel from a waveform signal of a plurality of channels output from a recorder by a channel selecting switch. And a baseline position adjusting unit that performs baseline position adjustment of any one channel selected by the baseline position adjusting channel selection unit by a baseline position adjusting switch that operates vertical movement of the baseline.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention. First, the baseline position adjustment mode changeover switch 11 is used to set whether to adjust the baseline position of only one channel or the baseline positions of a plurality of channels simultaneously. (Hereafter, the former is called "independent channel adjustment mode",
The latter is called "multi-channel adjustment mode").

When the single channel adjustment mode is selected, the channel on which the switch of the channel selection switches A1 to An is pressed becomes effective. Next, when one of the channel selection switches A1 to An of another channel is operated, that channel becomes valid, and the previously effective channel becomes invalid. Therefore, the lastly pressed channel becomes valid at any time.

Next, when the multi-channel adjustment mode is selected, all the channels for which the channel selection switches A1 to An have been operated become valid. The valid state is changed to the invalid state by operating the channel selection switches A1 to An of the target channel again. These controls are performed by the channel selection switch control unit 13. Next, the signal of the channel selected and validated by the baseline position adjustment channel selection unit 1 becomes an enable signal to the baseline position storage units B1 to Bn of the baseline position adjustment unit 2, and the baseline position storage units B1 to Bn are set. Validate.

Here, by making the channel selection switches A1 to An of the base line position adjustment channel selection unit 1 in contact, the base line position storage units B1 to Bn of the base line position adjustment storage unit 2 that have become effective are effective. Then, the position of the base line of the channel corresponding to the base line position storage units B1 to Bn can be moved by the base line position adjustment switch 21 of the base line position adjustment storage unit 2. At this time, if the + direction switch of the baseline position adjustment switch 21 of the baseline position adjustment unit 2 is operated, the baseline position of the activated channel moves in the + direction, and the − direction switch of the baseline position adjustment switch 21 is operated. Then, the baseline position moves in the-direction.
With the above operation, the baseline position can be adjusted.

[0012]

As described above, according to the present invention, the baseline position of each channel can be adjusted without increasing the number of the baseline position adjusting switches, and the baseline positions of a plurality of channels can be adjusted simultaneously. Have.

[Brief description of drawings]

FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention.

FIG. 2 is a block diagram showing a configuration of a conventional baseline position adjusting method.

[Description of Reference Signs] 1 baseline position adjustment channel selection unit 11 baseline position adjustment mode changeover switch A1 to An channel selection switch 13 channel selection control unit 2 baseline position adjustment storage unit 21 baseline position adjustment switch B1 to Bn baseline position storage unit C1 Cn Baseline position adjustment switch D1 to Dn Baseline position storage unit

Claims (2)

[Claims] 1. A baseline position adjusting channel selecting section for selecting an arbitrary one channel from a waveform signal of a plurality of channels output from a recorder by a channel selecting switch,
Any one selected by the baseline position adjustment channel selection unit
A baseline position adjusting method comprising: a baseline position adjusting unit for performing baseline position adjustment of one channel by a baseline position adjusting switch for operating vertical movement of the baseline. 2. The baseline position adjusting channel selecting section is configured to simultaneously select a plurality of channels by a channel selecting switch and to simultaneously perform a baseline position adjusting of the selected plurality of channels by a baseline position adjusting switch. The baseline position adjusting method according to claim 1.