Title:
FLICKER METER
Document Type and Number:
Japanese Patent JPS6154465
Kind Code:
A
Abstract:
PURPOSE: To improve precision, to obtain a stable measured value, and to speed up arithmetic by performing digital operations through a microcomputer, and composing a primary low-pass filter for smoothing of a primary recurrent type digital filter.
CONSTITUTION: Blocks 4 and 5 are constituted digitally, the filter group of a high-order block 3 performs analog processing, and APU (high-speed arithmetic unit) is used to perform the operations of the primary recurrent digital filter. Up to the block 3 is the same as before and output of the block 3 is a weighted fluctuating voltage. The blocks 4 and 5 consists of an A/D converter, interface I/O, ROM, RAM, μCPU, fast arithmetic unit APU, D/A converter, and printer.
Inventors:
KISHIMOTO KANICHI
MIYAZAKI YOTARO
NISHIDAI ATSUSHI
KUBOTA TSUTOMU
TAKEDA MASATOSHI
MIYAZAKI YOTARO
NISHIDAI ATSUSHI
KUBOTA TSUTOMU
TAKEDA MASATOSHI
Application Number:
JP17730584A
Publication Date:
March 18, 1986
Filing Date:
August 24, 1984
Export Citation:
Assignee:
FUKUOKA DENKI KEIKI KK
TOSHIBA CORP
NISSIN ELECTRIC CO LTD
FUJI ELECTRIC CO LTD
MITSUBISHI ELECTRIC CORP
TOSHIBA CORP
NISSIN ELECTRIC CO LTD
FUJI ELECTRIC CO LTD
MITSUBISHI ELECTRIC CORP
International Classes:
G01R29/00; (IPC1-7): G01R29/00
Domestic Patent References:
| JPS5593071A | 1980-07-15 |
Attorney, Agent or Firm:
Masu Kobori
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