Title:
【発明の名称】極性反転回路
Document Type and Number:
Japanese Patent JP2847841
Kind Code:
B2
Abstract:
A polarity inverting circuit includes first and second output voltage transmission circuits, first and second connection circuits, first and second polarity switching time changing circuits, and a controller. The first output voltage transmission circuit is connected to a first signal line to linearly change an output voltage from a first potential to a second potential. The second output voltage transmission circuit is connected to a second signal line to linearly change an output voltage from the second potential to the first potential when an output voltage from the first output voltage transmission circuit reaches the second potential. The first connection circuit connects the first signal line to a second potential source when the output from the first output voltage transmission circuit reaches the second potential. The second connection circuit disconnects the second signal from the second potential source when the first connection circuit is connected to the second potential source. The first and second polarity switching time changing circuits are respectively connected to the first and second output voltage transmission circuits to change rates of changes in output voltage. The controller controls operations of the respective circuits.
Inventors:
SAITO KOICHI
Application Number:
JP34287789A
Publication Date:
January 20, 1999
Filing Date:
December 29, 1989
Export Citation:
Assignee:
NIPPON DENKI KK
International Classes:
H04M7/00; H04M15/00; H04Q3/42; H04M17/02; H04M19/00; H04M19/02; (IPC1-7): H04Q3/42; H04M19/00
Domestic Patent References:
| JP63146553A | ||||
| JP5875363A | ||||
| JP56122584A |
Attorney, Agent or Firm:
Naoki Kyomoto (2 outside)