Title:
NUMERICAL CONTROLLER
Document Type and Number:
Japanese Patent JPS61118812
Kind Code:
A
Abstract:
PURPOSE:To attain the fine control of sound volume by actuating a switch which changes over selectively the resistance value connected to a voice synthesizing circuit in response to the control signal given from a processor. CONSTITUTION:When H of a key switch 2b is turned on, a processor 1a sets a data bus D0 at 1 and also sets a flip-flop 3 with an analog switch 6 turned on. An input VI of a power amplifier 1e is set at the same signal level as an output V0 of a voice synthesizing circuit 1d, i.e., the maximum sound volume. When M of the switch 2b is turned on, the processor 1a sets a flip-flop 4. Then a flip-flop 5 is set when L of the switch 2b is turned on. Thus the sound volume is controlled at medium and low levels.
Inventors:
KITATSUME TSUGIO
Application Number:
JP24033784A
Publication Date:
June 06, 1986
Filing Date:
November 14, 1984
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP
International Classes:
G05B19/18; G05B19/408; G05B19/414; (IPC1-7): G05B19/405
Domestic Patent References:
| JPS58182710A | 1983-10-25 | |||
| JPS5894959A | 1983-06-06 | |||
| JPS5972813A | 1984-04-24 | |||
| JPS5674529A | 1981-06-20 | |||
| JPS5362998A | 1978-06-05 | |||
| JPS58163957A | 1983-09-28 | |||
| JPS5818709A | 1983-02-03 | |||
| JP59122602B | ||||
| JPS5924301A | 1984-02-08 |
Attorney, Agent or Firm:
Mamoru Takada (1 person outside)