Title:
ANALOGUE MULTIPLIER
Document Type and Number:
Japanese Patent JPH1127241
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an analog multiplier by using a switched capacitor filter(SCF) for an inversion privacy circuit that suppresses an original sound leakage in the case of inputting a sound signal as a multiplied signal. SOLUTION: This device is equipped with an SCF and a clock supply part 100 for supplying a clock to make each switch constituting the SCF perform an opening-closing operation. This clock supply part 100 supplies a clock to each switch constituting the SCF so that the ratio of the time when the SCF output becomes an inversion output to the time when the SCF output becomes non-inversion output becomes one to one.
Inventors:
TAMURA SATOSHI
KIKUCHI MITSURU
KIKUCHI MITSURU
Application Number:
JP17490097A
Publication Date:
January 29, 1999
Filing Date:
June 30, 1997
Export Citation:
Assignee:
ASAHI CHEMICAL MICRO SYST
International Classes:
G06G7/16; H03H19/00; H04K1/04; (IPC1-7): H04K1/04; G06G7/16; H03H19/00
Attorney, Agent or Firm:
Tetsuya Mori (3 others)