Title:
FILTER AND DEMODULATOR USING THE SAME
Document Type and Number:
Japanese Patent JP2002208838
Kind Code:
A
Abstract:
To provide a filter capable of reducing current consumption and a demodulator using the filter.
This filter is provided with a correction circuit 2 for generating a correction signal CORR by a reference signal ST and controlling the cutoff frequency of a filter circuit 1. The filter is provided with a retention circuit 3 for retaining the correction signal CORR outputted from the correction circuit 2. The cutoff frequency of the filter circuit 1 is controlled by the correction signal CORR which is retained by the retention circuit 3.
Inventors:
NAKAMORI TOSHIHIRO
Application Number:
JP2001004254A
Publication Date:
July 26, 2002
Filing Date:
January 11, 2001
Export Citation:
Assignee:
SHARP KK
International Classes:
H03H11/04; (IPC1-7): H03H11/04
Attorney, Agent or Firm:
Kenzo Hara